fix: fix macos microphone permission after signing

* fix: allow deletion after selecting all text

* docs: update changelog

.github/workflows/frontend-ci.yml

@@ -0,0 +1,70 @@
+name: Frontend Code Check
+
+on:
+  pull_request:
+    # Only run it when Frontend code changes
+    paths:
+      - 'src/**'
+      - 'tsup.config.ts'
+      - 'package.json'
+
+jobs:
+  check:
+    strategy:
+      matrix:
+        platform: [ubuntu-latest, windows-latest, macos-latest]
+    
+    runs-on: ${{ matrix.platform }}
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      with:
+        ref: ${{ github.head_ref }}  
+        fetch-depth: 0               
+
+    - name: Setup Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version: '20'
+
+    # No need to pass the version arg as it is specified by "packageManager" in package.json
+    - name: Install pnpm
+      uses: pnpm/action-setup@v4
+
+    - name: Install dependencies
+      run: pnpm install --frozen-lockfile
+
+    - name: Switch platformAdapter to Web adapter
+      shell: bash
+      run: >
+        node -e "const fs=require('fs');const f='src/utils/platformAdapter.ts';
+        let s=fs.readFileSync(f,'utf8');
+        s=s.replace(/import\\s*\\{\\s*createTauriAdapter\\s*\\}\\s*from\\s*\\\"\\.\\/tauriAdapter\\\";/,'import { createWebAdapter } from \\\"./webAdapter\\\";');
+        s=s.replace(/let\\s+platformAdapter\\s*=\\s*createTauriAdapter\\(\\);/,'let platformAdapter = createWebAdapter();');
+        fs.writeFileSync(f,s);"
+
+    - name: Build web (Tauri dependency check)
+      run: pnpm build:web
+
+    - name: Verify no Tauri refs in web output
+      shell: bash
+      run: |
+        if grep -R -n -E '@tauri-apps|tauri-plugin' out/search-chat; then
+          echo 'Tauri references found in web build output';
+          exit 1;
+        else
+          echo 'No Tauri references found';
+        fi
+
+    - name: Restore platformAdapter to Tauri adapter
+      shell: bash
+      run: >
+        node -e "const fs=require('fs');const f='src/utils/platformAdapter.ts';
+        let s=fs.readFileSync(f,'utf8');
+        s=s.replace(/import\\s*\\{\\s*createWebAdapter\\s*\\}\\s*from\\s*\\\"\\.\\/webAdapter\\\";/,'import { createTauriAdapter } from \\\"./tauriAdapter\\\";');
+        s=s.replace(/let\\s+platformAdapter\\s*=\\s*createWebAdapter\\(\\);/,'let platformAdapter = createTauriAdapter();');
+        fs.writeFileSync(f,s);"
+
+    - name: Build frontend
+      run: pnpm build

.github/workflows/release.yml

@@ -104,7 +104,17 @@ jobs:
         if: startsWith(matrix.platform, 'ubuntu-22.04')
         run: |
           sudo apt-get update
-          sudo apt-get install -y libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf xdg-utils
+          sudo apt-get install -y libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf xdg-utils libtracker-sparql-3.0-dev
+
+
+      # On Windows, we need to generate bindings for 'searchapi.h' using bindgen.
+      # And bindgen relies on 'libclang'
+      # https://rust-lang.github.io/rust-bindgen/requirements.html#windows
+      - name: Install dependencies (Windows only)
+        if: startsWith(matrix.platform, 'windows-latest')
+        shell: bash
+        run: winget install LLVM.LLVM --silent --accept-package-agreements --accept-source-agreements
+
 
       - name: Add Rust build target
         working-directory: src-tauri

.github/workflows/rust_code_check.yml

@@ -30,7 +30,15 @@ jobs:
       if: startsWith(matrix.platform, 'ubuntu-latest')
       run: |
         sudo apt-get update
-        sudo apt-get install -y libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf xdg-utils
+        sudo apt-get install -y libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf xdg-utils libtracker-sparql-3.0-dev
+
+    # On Windows, we need to generate bindings for 'searchapi.h' using bindgen.
+    # And bindgen relies on 'libclang'
+    # https://rust-lang.github.io/rust-bindgen/requirements.html#windows
+    - name: Install dependencies (Windows only)
+      if: startsWith(matrix.platform, 'windows-latest')
+      shell: bash
+      run: winget install LLVM.LLVM --silent --accept-package-agreements --accept-source-agreements
 
     - name: Add pizza engine as a dependency
       working-directory: src-tauri

.vscode/settings.json

@@ -83,5 +83,6 @@
   "i18n-ally.keystyle": "nested",
   "editor.tabSize": 2,
   "editor.insertSpaces": true,
-  "editor.detectIndentation": false
+  "editor.detectIndentation": false,
+  "i18n-ally.displayLanguage": "zh"
 }

README.md

@@ -64,9 +64,9 @@ At Coco AI, we aim to streamline workplace collaboration by centralizing access
 
 ### Prerequisites
 
-- Node.js >= 18.12
-- Rust (latest stable)
-- pnpm (package manager)
+- [Node.js >= 18.12](https://nodejs.org/en/download/)
+- [Rust (latest stable)](https://www.rust-lang.org/tools/install)
+- [pnpm (package manager)](https://pnpm.io/installation)
 
 ### Development Setup
 

docs/content.en/_index.md

@@ -9,7 +9,7 @@ Coco AI is a fully open-source, cross-platform unified search and productivity t
 
 {{% load-img "/img/coco-preview.gif" "" %}}
 
-For more details on Coco Server, visit: [https://docs.infinilabs.com/coco-app/](https://docs.infinilabs.com/coco-app/).
+For more details on Coco Server, visit: [https://docs.infinilabs.com/coco-server/](https://docs.infinilabs.com/coco-server/).
 
 ## Community
 

docs/content.en/docs/getting-started/installation/ubuntu.md

@@ -13,6 +13,12 @@ asciinema: true
 [x11_protocol]: https://en.wikipedia.org/wiki/X_Window_System 
 [if_x11]: https://unix.stackexchange.com/q/202891/498440
 
+## Install dependencies
+
+```sh
+$ sudo apt-get update
+$ sudo apt-get install -y libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf xdg-utils libtracker-sparql-3.0-dev
+```
 
 ## Go to the download page
 

docs/content.en/docs/release-notes/_index.md

@@ -13,14 +13,72 @@ Information about release notes of Coco App is provided here.
 
 ### 🚀 Features
 
+feat: support switching groups via keyboard shortcuts #911
+feat: support opening logs from about page #915
+feat: support moving cursor with home and end keys #918
+feat: support pageup/pagedown to navigate search results #920
+feat: standardize multi-level menu label structure #925
+feat(View Extension): page field now accepts HTTP(s) links #925
+feat: return sub-exts when extension type exts themselves are matched #928
+feat: open quick ai with modifier key + enter #939
+feat: allow navigate back when cursor is at the beginning #940
+
+### 🐛 Bug fix
+
+fix: automatic update of service list #913
+fix: duplicate chat content #916
+fix: resolve pinned window shortcut not working #917
+fix: WM ext does not work when operating focused win from another display #919
+fix(Window Management): Next/Previous Desktop do not work #926
+fix: fix page rapidly flickering issue #935
+fix(view extension): broken search bar UI when opening extensions via hotkey #938
+fix: allow deletion after selecting all text #943
+
+### ✈️ Improvements
+
+refactor: improve sorting logic of search results #910
+style: add dark drop shadow to images #912
+chore: add cross-domain configuration for web component #921
+refactor: retry if AXUIElementSetAttributeValue() does not work #924
+refactor(calculator): skip evaluation if expr is in form "num => num" #929
+chore: use a custom log directory #930
+chore: bump tauri_nspanel to v2.1 #933
+refactor: show_coco/hide_coco now use NSPanel's function on macOS #933
+refactor: procedure that convert_pages() into a func #934
+
+## 0.8.0 (2025-09-28)
+
+### ❌ Breaking changes
+
+- chore: update request accesstoken api #866
+
+### 🚀 Features
+
 - feat: enhance ui for skipped version #834
 - feat: support installing local extensions #749
 - feat: support sending files in chat messages #764
 - feat: sub extension can set 'platforms' now #847
+- feat: add extension uninstall option in settings #855
+- feat: impl extension settings 'hide_before_open' #862
+- feat: index both en/zh_CN app names and show app name in chosen language #875
+- feat: support context menu in debug mode #882
+- feat: file search for Linux/GNOME #884
+- feat: file search for Linux/KDE #886
+- feat: extension Window Management for macOS #892
+- feat: new extension type View #894
+- feat: support opening file in its containing folder #900
 
 ### 🐛 Bug fix
 
 - fix: fix issue with update check failure #833
+- fix: web component login state #857
+- fix: shortcut key not opening extension store #877
+- fix: set up hotkey on main thread or Windows will complain #879
+- fix: resolve deeplink login issue #881
+- fix: use kill_on_drop() to avoid zombie proc in error case #887
+- fix: settings window rendering/loading issue 889
+- fix: ensure search paths are indexed #896
+- fix: bump applications-rs to fix empty app name issue #898
 
 ### ✈️ Improvements
 
@@ -30,6 +88,15 @@ Information about release notes of Coco App is provided here.
 - chore: delete unused code files and dependencies #841
 - chore: ignore tauri::AppHandle's generic argument R #845
 - refactor: check Extension/plugin.json from all sources #846
+- refactor: pinning window won't set CanJoinAllSpaces on macOS #854
+- build: web component build error #858
+- refactor: coordinate third-party extension operations using lock #867
+- refactor: index iOS apps and macOS apps that store icon in Assets.car #872
+- refactor: accept both '-' and '\_' as locale str separator #876
+- refactor: relax the file search conditions on macOS #883
+- refactor: ensure Coco won't take focus #891
+- chore: skip login check for web widget #895
+- chore: convertFileSrc() "link[href]" and "img[src]" #901
 
 ## 0.7.1 (2025-07-27)
 

package.json

@@ -1,7 +1,7 @@
 {
   "name": "coco",
   "private": true,
-  "version": "0.7.1",
+  "version": "0.8.0",
   "type": "module",
   "scripts": {
     "dev": "vite",
@@ -26,7 +26,7 @@
     "@tauri-apps/plugin-global-shortcut": "~2.0.0",
     "@tauri-apps/plugin-http": "~2.0.2",
     "@tauri-apps/plugin-log": "~2.4.0",
-    "@tauri-apps/plugin-opener": "^2.2.7",
+    "@tauri-apps/plugin-opener": "^2.5.0",
     "@tauri-apps/plugin-os": "^2.2.1",
     "@tauri-apps/plugin-process": "^2.2.1",
     "@tauri-apps/plugin-shell": "^2.2.1",
@@ -93,4 +93,4 @@
     "vite": "^5.4.19"
   },
   "packageManager": "pnpm@10.11.0+sha512.6540583f41cc5f628eb3d9773ecee802f4f9ef9923cc45b69890fb47991d4b092964694ec3a4f738a420c918a333062c8b925d312f42e4f0c263eb603551f977"
-}
+}

pnpm-lock.yaml

@@ -33,8 +33,8 @@ importers:
         specifier: ~2.4.0
         version: 2.4.0
       '@tauri-apps/plugin-opener':
-        specifier: ^2.2.7
-        version: 2.2.7
+        specifier: ^2.5.0
+        version: 2.5.0
       '@tauri-apps/plugin-os':
         specifier: ^2.2.1
         version: 2.2.1
@@ -790,6 +790,9 @@ packages:
     resolution: {integrity: sha512-O8jcjabXaleOG9DQ0+ARXWZBTfnP4WNAqzuiJK7ll44AmxGKv/J2M4TPjxjY3znBCfvBXFzucm1twdyFybFqEA==}
     engines: {node: '>=12'}
 
+  '@jridgewell/gen-mapping@0.3.13':
+    resolution: {integrity: sha512-2kkt/7niJ6MgEPxF0bYdQ6etZaA+fQvDcLKckhy1yIQOzaoKjBBjSj63/aLVjYE3qhRt5dvM+uUyfCg6UKCBbA==}
+
   '@jridgewell/gen-mapping@0.3.8':
     resolution: {integrity: sha512-imAbBGkb+ebQyxKgzv5Hu2nmROxoDOXHh80evxdoXNOrvAnVx7zimzc1Oo5h9RlfV4vPXaE2iM5pOFbvOCClWA==}
     engines: {node: '>=6.0.0'}
@@ -802,15 +805,21 @@ packages:
     resolution: {integrity: sha512-R8gLRTZeyp03ymzP/6Lil/28tGeGEzhx1q2k703KGWRAI1VdvPIXdG70VJc2pAMw3NA6JKL5hhFu1sJX0Mnn/A==}
     engines: {node: '>=6.0.0'}
 
-  '@jridgewell/source-map@0.3.6':
-    resolution: {integrity: sha512-1ZJTZebgqllO79ue2bm3rIGud/bOe0pP5BjSRCRxxYkEZS8STV7zN84UBbiYu7jy+eCKSnVIUgoWWE/tt+shMQ==}
+  '@jridgewell/source-map@0.3.11':
+    resolution: {integrity: sha512-ZMp1V8ZFcPG5dIWnQLr3NSI1MiCU7UETdS/A0G8V/XWHvJv3ZsFqutJn1Y5RPmAPX6F3BiE397OqveU/9NCuIA==}
 
   '@jridgewell/sourcemap-codec@1.5.0':
     resolution: {integrity: sha512-gv3ZRaISU3fjPAgNsriBRqGWQL6quFx04YMPW/zD8XMLsU32mhCCbfbO6KZFLjvYpCZ8zyDEgqsgf+PwPaM7GQ==}
 
+  '@jridgewell/sourcemap-codec@1.5.5':
+    resolution: {integrity: sha512-cYQ9310grqxueWbl+WuIUIaiUaDcj7WOq5fVhEljNVgRfOUhY9fy2zTvfoqWsnebh8Sl70VScFbICvJnLKB0Og==}
+
   '@jridgewell/trace-mapping@0.3.25':
     resolution: {integrity: sha512-vNk6aEwybGtawWmy/PzwnGDOjCkLWSD2wqvjGGAgOAwCGWySYXfYoxt00IJkTF+8Lb57DwOb3Aa0o9CApepiYQ==}
 
+  '@jridgewell/trace-mapping@0.3.31':
+    resolution: {integrity: sha512-zzNR+SdQSDJzc8joaeP8QQoCQr8NuYx2dIIytl1QeBEZHJ9uW6hebsrYgbz8hJwUQao3TWCMtmfV8Nu1twOLAw==}
+
   '@mermaid-js/parser@0.4.0':
     resolution: {integrity: sha512-wla8XOWvQAwuqy+gxiZqY+c7FokraOTHRWMsbB4AgRx9Sy7zKslNyejy7E+a77qHfey5GXw/ik3IXv/NHMJgaA==}
 
@@ -1153,6 +1162,9 @@ packages:
   '@tauri-apps/api@2.5.0':
     resolution: {integrity: sha512-Ldux4ip+HGAcPUmuLT8EIkk6yafl5vK0P0c0byzAKzxJh7vxelVtdPONjfgTm96PbN24yjZNESY8CKo8qniluA==}
 
+  '@tauri-apps/api@2.8.0':
+    resolution: {integrity: sha512-ga7zdhbS2GXOMTIZRT0mYjKJtR9fivsXzsyq5U3vjDL0s6DTMwYRm0UHNjzTY5dh4+LSC68Sm/7WEiimbQNYlw==}
+
   '@tauri-apps/cli-darwin-arm64@2.5.0':
     resolution: {integrity: sha512-VuVAeTFq86dfpoBDNYAdtQVLbP0+2EKCHIIhkaxjeoPARR0sLpFHz2zs0PcFU76e+KAaxtEtAJAXGNUc8E1PzQ==}
     engines: {node: '>= 10'}
@@ -1242,8 +1254,8 @@ packages:
   '@tauri-apps/plugin-log@2.4.0':
     resolution: {integrity: sha512-j7yrDtLNmayCBOO2esl3aZv9jSXy2an8MDLry3Ys9ZXerwUg35n1Y2uD8HoCR+8Ng/EUgx215+qOUfJasjYrHw==}
 
-  '@tauri-apps/plugin-opener@2.2.7':
-    resolution: {integrity: sha512-uduEyvOdjpPOEeDRrhwlCspG/f9EQalHumWBtLBnp3fRp++fKGLqDOyUhSIn7PzX45b/rKep//ZQSAQoIxobLA==}
+  '@tauri-apps/plugin-opener@2.5.0':
+    resolution: {integrity: sha512-B0LShOYae4CZjN8leiNDbnfjSrTwoZakqKaWpfoH6nXiJwt6Rgj6RnVIffG3DoJiKsffRhMkjmBV9VeilSb4TA==}
 
   '@tauri-apps/plugin-os@2.2.1':
     resolution: {integrity: sha512-cNYpNri2CCc6BaNeB6G/mOtLvg8dFyFQyCUdf2y0K8PIAKGEWdEcu8DECkydU2B+oj4OJihDPD2de5K6cbVl9A==}
@@ -1464,6 +1476,11 @@ packages:
     engines: {node: '>=0.4.0'}
     hasBin: true
 
+  acorn@8.15.0:
+    resolution: {integrity: sha512-NZyJarBfL7nWwIq+FDL6Zp/yHEhePMNnnJ0y3qfieCrmNvYct8uvtiV41UvlSe6apAfk0fY1FbWx+NwfmpvtTg==}
+    engines: {node: '>=0.4.0'}
+    hasBin: true
+
   agent-base@7.1.3:
     resolution: {integrity: sha512-jRR5wdylq8CkOe6hei19GGZnxM6rBGwFl3Bg0YItGDimvjGtAvdZk4Pu6Cl4u4Igsws4a1fd1Vq3ezrhn4KmFw==}
     engines: {node: '>= 14'}
@@ -4230,6 +4247,12 @@ snapshots:
       wrap-ansi: 8.1.0
       wrap-ansi-cjs: wrap-ansi@7.0.0
 
+  '@jridgewell/gen-mapping@0.3.13':
+    dependencies:
+      '@jridgewell/sourcemap-codec': 1.5.5
+      '@jridgewell/trace-mapping': 0.3.31
+    optional: true
+
   '@jridgewell/gen-mapping@0.3.8':
     dependencies:
       '@jridgewell/set-array': 1.2.1
@@ -4240,19 +4263,28 @@ snapshots:
 
   '@jridgewell/set-array@1.2.1': {}
 
-  '@jridgewell/source-map@0.3.6':
+  '@jridgewell/source-map@0.3.11':
     dependencies:
-      '@jridgewell/gen-mapping': 0.3.8
-      '@jridgewell/trace-mapping': 0.3.25
+      '@jridgewell/gen-mapping': 0.3.13
+      '@jridgewell/trace-mapping': 0.3.31
     optional: true
 
   '@jridgewell/sourcemap-codec@1.5.0': {}
 
+  '@jridgewell/sourcemap-codec@1.5.5':
+    optional: true
+
   '@jridgewell/trace-mapping@0.3.25':
     dependencies:
       '@jridgewell/resolve-uri': 3.1.2
       '@jridgewell/sourcemap-codec': 1.5.0
 
+  '@jridgewell/trace-mapping@0.3.31':
+    dependencies:
+      '@jridgewell/resolve-uri': 3.1.2
+      '@jridgewell/sourcemap-codec': 1.5.5
+    optional: true
+
   '@mermaid-js/parser@0.4.0':
     dependencies:
       langium: 3.3.1
@@ -4546,6 +4578,8 @@ snapshots:
 
   '@tauri-apps/api@2.5.0': {}
 
+  '@tauri-apps/api@2.8.0': {}
+
   '@tauri-apps/cli-darwin-arm64@2.5.0':
     optional: true
 
@@ -4617,9 +4651,9 @@ snapshots:
     dependencies:
       '@tauri-apps/api': 2.5.0
 
-  '@tauri-apps/plugin-opener@2.2.7':
+  '@tauri-apps/plugin-opener@2.5.0':
     dependencies:
-      '@tauri-apps/api': 2.5.0
+      '@tauri-apps/api': 2.8.0
 
   '@tauri-apps/plugin-os@2.2.1':
     dependencies:
@@ -4876,6 +4910,9 @@ snapshots:
 
   acorn@8.14.1: {}
 
+  acorn@8.15.0:
+    optional: true
+
   agent-base@7.1.3: {}
 
   ahooks@3.8.4(react@18.3.1):
@@ -7232,8 +7269,8 @@ snapshots:
 
   terser@5.40.0:
     dependencies:
-      '@jridgewell/source-map': 0.3.6
-      acorn: 8.14.1
+      '@jridgewell/source-map': 0.3.11
+      acorn: 8.15.0
       commander: 2.20.3
       source-map-support: 0.5.21
     optional: true

src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "coco"
-version = "0.7.1"
+version = "0.8.0"
 description = "Search, connect, collaborate – all in one place."
 authors = ["INFINI Labs"]
 edition = "2024"
@@ -15,6 +15,7 @@ crate-type = ["staticlib", "cdylib", "rlib"]
 
 [build-dependencies]
 tauri-build = { version = "2", features = ["default"] }
+cfg-if = "1.0.1"
 
 [features]
 default = ["desktop"]
@@ -61,7 +62,7 @@ tauri-plugin-drag = "2"
 tauri-plugin-macos-permissions = "2"
 tauri-plugin-fs-pro = "2"
 tauri-plugin-screenshots = "2"
-applications = { git = "https://github.com/infinilabs/applications-rs", rev = "31b0c030a0f3bc82275fe12debe526153978671d" }
+applications = { git = "https://github.com/infinilabs/applications-rs", rev = "b5fac4034a40d42e72f727f1aa1cc1f19fe86653" }
 tokio-native-tls = "0.3"  # For wss connections
 tokio = { version = "1", features = ["full"] }
 tokio-tungstenite = { version = "0.20", features = ["native-tls"] }
@@ -103,17 +104,42 @@ zip = "4.0.0"
 url = "2.5.2"
 camino = "1.1.10"
 tokio-stream = { version = "0.1.17", features = ["io-util"] }
-cfg-if = "1.0.1"
 sysinfo = "0.35.2"
 indexmap = { version = "2.10.0", features = ["serde"] }
 strum = { version = "0.27.2", features = ["derive"] }
+sys-locale = "0.3.2"
+tauri-plugin-prevent-default = "1"
+oneshot = "0.1.11"
+bitflags = "2.9.3"
+cfg-if = "1.0.1"
+dunce = "1.0.5"
+urlencoding = "2.1.3"
+scraper = "0.17"
+toml = "0.8"
+path-clean = "1.0.1"
+
+[dev-dependencies]
+tempfile = "3.23.0"
 
 [target."cfg(target_os = \"macos\")".dependencies]
-tauri-nspanel = { git = "https://github.com/ahkohd/tauri-nspanel", branch = "v2" }
-cocoa = "0.24"
+tauri-nspanel = { git = "https://github.com/ahkohd/tauri-nspanel", branch = "v2.1" }
+objc2-app-kit = { version = "0.3.1", features = ["NSWindow"] }
+objc2 = "0.6.2"
+objc2-core-foundation =  {version = "0.3.1", features = ["CFString", "CFCGTypes", "CFArray"] }
+objc2-application-services = { version = "0.3.1", features = ["HIServices"] }
+objc2-core-graphics = { version = "=0.3.1", features = ["CGEvent"] }
+
+[target."cfg(target_os = \"linux\")".dependencies]
+gio = "0.21.2"
+glib = "0.21.2"
+tracker-rs = "0.7"
+which = "8.0.0"
+configparser = "3.1.0"
 
 [target."cfg(any(target_os = \"macos\", windows, target_os = \"linux\"))".dependencies]
 tauri-plugin-single-instance = { version = "2.0.0", features = ["deep-link"] }
+serde = { version = "1.0.219", features = ["derive"], optional = true }
+
 
 [profile.dev]
 incremental = true # Compile your binary in smaller steps.
@@ -134,4 +160,8 @@ semver = { version = "1", features = ["serde"] }
 
 [target."cfg(target_os = \"windows\")".dependencies]
 enigo="0.3"
-windows = { version = "0.61.3", features = ["Win32_Foundation", "Win32_System_Com", "Win32_System_Ole", "Win32_System_Search", "Win32_UI_Shell_PropertiesSystem", "Win32_Data"] }
+windows = { version = "0.61", features = ["Win32_Foundation", "Win32_System_Com", "Win32_System_Ole", "Win32_System_Search", "Win32_UI_Shell_PropertiesSystem", "Win32_Data"] }
+windows-sys = { version = "0.61", features = ["Win32", "Win32_System", "Win32_System_Com"] }
+
+[target."cfg(target_os = \"windows\")".build-dependencies]
+bindgen = "0.72.1"

src-tauri/Entitlements.plist

@@ -12,8 +12,6 @@
     <true/>
     <key>com.apple.security.automation.apple-events</key>
     <true/>
-    <key>com.apple.security.device.microphone</key>
-    <true/>
     <key>com.apple.security.device.audio-input</key>
     <true/>
     <key>com.apple.security.network.client</key>
@@ -26,5 +24,6 @@
     <string>6GVZT94974.rs.coco.app</string>
     <key>com.apple.developer.team-identifier</key>
     <string>6GVZT94974</string>
+
 </dict>
-</plist>
+</plist>

src-tauri/Info.plist

@@ -2,6 +2,11 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+  <key>NSCameraUsageDescription</key>
+  <string>Request camera access for WebRTC</string>
+  <key>NSMicrophoneUsageDescription</key>
+  <string>Request microphone access for WebRTC</string>
+
 	<key>CFBundleIdentifier</key>
 	<string>rs.coco.app</string>
 	<key>CFBundleExecutable</key>

src-tauri/build.rs

@@ -11,4 +11,32 @@ fn main() {
     //
     // unexpected condition name: `ci`
     println!("cargo::rustc-check-cfg=cfg(ci)");
+
+    // Bindgen searchapi.h on Windows as the windows create does not provide
+    // bindings for it
+    cfg_if::cfg_if! {
+        if #[cfg(target_os = "windows")] {
+            use std::env;
+            use std::path::PathBuf;
+
+            let wrapper_header = r#"#include <windows.h>
+    #include <searchapi.h>"#;
+
+            let searchapi_bindings = bindgen::Builder::default()
+                .header_contents("wrapper.h", wrapper_header)
+                .generate()
+                .expect("failed to generate bindings for <searchapi.h>");
+
+            let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
+            searchapi_bindings
+                .write_to_file(out_path.join("searchapi_bindings.rs"))
+                .expect("couldn't write bindings to <OUT_DIR/searchapi_bindings.rs>")
+
+            // Looks like there is no need to link the library that contains the
+            // implementation of functions declared in 'searchapi.h' manually as
+            // the FFI bindings work (without doing that).
+            //
+            // This is wield, I do not expect the linker will link it automatically.
+        }
+    }
 }

src-tauri/capabilities/default.json

@@ -69,6 +69,7 @@
     "updater:default",
     "windows-version:default",
     "log:default",
-    "opener:default"
+    "opener:default",
+    "core:window:allow-unminimize"
   ]
 }

src-tauri/src/autostart.rs

@@ -1,15 +1,15 @@
 use std::{fs::create_dir, io::Read};
 
-use tauri::Manager;
+use tauri::{AppHandle, Manager};
 use tauri_plugin_autostart::ManagerExt;
 
 /// If the state reported from the OS and the state stored by us differ, our state is
 /// prioritized and seen as the correct one. Update the OS state to make them consistent.
-pub fn ensure_autostart_state_consistent(app: &mut tauri::App) -> Result<(), String> {
-    let autostart_manager = app.autolaunch();
+pub fn ensure_autostart_state_consistent(tauri_app_handle: &AppHandle) -> Result<(), String> {
+    let autostart_manager = tauri_app_handle.autolaunch();
 
     let os_state = autostart_manager.is_enabled().map_err(|e| e.to_string())?;
-    let coco_stored_state = current_autostart(app.app_handle()).map_err(|e| e.to_string())?;
+    let coco_stored_state = current_autostart(tauri_app_handle).map_err(|e| e.to_string())?;
 
     if os_state != coco_stored_state {
         log::warn!(

src-tauri/src/common/document.rs

@@ -1,6 +1,10 @@
+#[cfg(target_os = "macos")]
+use crate::extension::built_in::window_management::actions::Action;
+use crate::extension::{ExtensionPermission, ExtensionSettings, ViewExtensionUISettings};
 use serde::{Deserialize, Serialize};
+use serde_json::Value as Json;
 use std::collections::HashMap;
-use tauri::AppHandle;
+use tauri::{AppHandle, Emitter};
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct RichLabel {
@@ -30,17 +34,48 @@ pub struct EditorInfo {
     pub timestamp: Option<String>,
 }
 
-/// Defines the action that would be performed when a document gets opened.
+/// Defines the action that would be performed when a [document](Document) gets opened.
+///
+/// "Document" is a uniform type that the backend uses to send the search results
+/// back to the frontend.  Since Coco can search many sources, "Document" can
+/// represent different things, application, web page, local file, extensions, and
+/// so on.  Each has its own specific open action.
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub(crate) enum OnOpened {
     /// Launch the application
     Application { app_path: String },
     /// Open the URL.
     Document { url: String },
+    /// Perform this WM action.
+    #[cfg(target_os = "macos")]
+    WindowManagementAction { action: Action },
+    /// The document is an extension.
+    Extension(ExtensionOnOpened),
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub(crate) struct ExtensionOnOpened {
+    /// Different types of extensions have different open behaviors.
+    pub(crate) ty: ExtensionOnOpenedType,
+    /// Extensions settings.  Some could affect open action.
+    ///
+    /// Optional because not all extensions have their settings.
+    pub(crate) settings: Option<ExtensionSettings>,
+    /// Permission needed by this extension.
+    ///
+    /// We do permission check when opening this permission. Currently, we only
+    /// do this to View extensions.
+    pub(crate) permission: Option<ExtensionPermission>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub(crate) enum ExtensionOnOpenedType {
     /// Spawn a child process to run the `CommandAction`.
     Command {
         action: crate::extension::CommandAction,
     },
+    /// Open the `link`.
+    //
     // NOTE that this variant has the same definition as `struct Quicklink`, but we
     // cannot use it directly, its `link` field should be deserialized/serialized
     // from/to a string, but we need a JSON object here.
@@ -50,6 +85,13 @@ pub(crate) enum OnOpened {
         link: crate::extension::QuicklinkLink,
         open_with: Option<String>,
     },
+    View {
+        /// Path to the HTML file that coco will load and render.
+        ///
+        /// It should be an absolute path or Tauri cannot open it.
+        page: String,
+        ui: Option<ViewExtensionUISettings>,
+    },
 }
 
 impl OnOpened {
@@ -57,20 +99,33 @@ impl OnOpened {
         match self {
             Self::Application { app_path } => app_path.clone(),
             Self::Document { url } => url.clone(),
-            Self::Command { action } => {
-                const WHITESPACE: &str = " ";
-                let mut ret = action.exec.clone();
-                ret.push_str(WHITESPACE);
-                if let Some(ref args) = action.args {
-                    ret.push_str(args.join(WHITESPACE).as_str());
-                }
-
-                ret
+            #[cfg(target_os = "macos")]
+            Self::WindowManagementAction { action: _ } => {
+                // We don't have URL for this
+                String::from("N/A")
+            }
+            Self::Extension(ext_on_opened) => {
+                match &ext_on_opened.ty {
+                    ExtensionOnOpenedType::Command { action } => {
+                        const WHITESPACE: &str = " ";
+                        let mut ret = action.exec.clone();
+                        ret.push_str(WHITESPACE);
+                        if let Some(ref args) = action.args {
+                            ret.push_str(args.join(WHITESPACE).as_str());
+                        }
+
+                        ret
+                    }
+                    // Currently, our URL is static and does not support dynamic parameters.
+                    // The URL of a quicklink is nearly useless without such dynamic user
+                    // inputs, so until we have dynamic URL support, we just use "N/A".
+                    ExtensionOnOpenedType::Quicklink { .. } => String::from("N/A"),
+                    ExtensionOnOpenedType::View { page: _, ui: _ } => {
+                        // We currently don't have URL for this kind of extension.
+                        String::from("N/A")
+                    }
+                }
             }
-            // Currently, our URL is static and does not support dynamic parameters.
-            // The URL of a quicklink is nearly useless without such dynamic user
-            // inputs, so until we have dynamic URL support, we just use "N/A".
-            Self::Quicklink { .. } => String::from("N/A"),
         }
     }
 }
@@ -79,7 +134,7 @@ impl OnOpened {
 pub(crate) async fn open(
     tauri_app_handle: AppHandle,
     on_opened: OnOpened,
-    extra_args: Option<HashMap<String, String>>,
+    extra_args: Option<HashMap<String, Json>>,
 ) -> Result<(), String> {
     use crate::util::open as homemade_tauri_shell_open;
     use std::process::Command;
@@ -95,65 +150,116 @@ pub(crate) async fn open(
 
             homemade_tauri_shell_open(tauri_app_handle.clone(), url).await?
         }
-        OnOpened::Command { action } => {
-            log::debug!("open (execute) command [{:?}]", action);
+        #[cfg(target_os = "macos")]
+        OnOpened::WindowManagementAction { action } => {
+            log::debug!("perform Window Management action [{:?}]", action);
 
-            let mut cmd = Command::new(action.exec);
-            if let Some(args) = action.args {
-                cmd.args(args);
-            }
-            let output = cmd.output().map_err(|e| e.to_string())?;
-            // Sometimes, we wanna see the result in logs even though it doesn't fail.
-            log::debug!(
-                "executing open(Command) result, exit code: [{}], stdout: [{}], stderr: [{}]",
-                output.status,
-                String::from_utf8_lossy(&output.stdout),
-                String::from_utf8_lossy(&output.stderr)
-            );
-            if !output.status.success() {
-                log::warn!(
-                    "executing open(Command) failed, exit code: [{}], stdout: [{}], stderr: [{}]",
-                    output.status,
-                    String::from_utf8_lossy(&output.stdout),
-                    String::from_utf8_lossy(&output.stderr)
-                );
-
-                return Err(format!(
-                    "Command failed, stderr [{}]",
-                    String::from_utf8_lossy(&output.stderr)
-                ));
-            }
+            crate::extension::built_in::window_management::perform_action_on_main_thread(
+                &tauri_app_handle,
+                action,
+            )?;
         }
-        OnOpened::Quicklink {
-            link,
-            open_with: opt_open_with,
-        } => {
-            let url = link.concatenate_url(&extra_args);
-
-            log::debug!("open quicklink [{}] with [{:?}]", url, opt_open_with);
-
-            cfg_if::cfg_if! {
-                // The `open_with` functionality is only supported on macOS, provided
-                // by the `open -a` command.
-                if #[cfg(target_os = "macos")] {
-                    let mut cmd = Command::new("open");
-                    if let Some(ref open_with) = opt_open_with {
-                        cmd.arg("-a");
-                        cmd.arg(open_with.as_str());
+        OnOpened::Extension(ext_on_opened) => {
+            // Apply the settings that would affect open behavior
+            if let Some(settings) = ext_on_opened.settings {
+                if let Some(should_hide) = settings.hide_before_open {
+                    if should_hide {
+                        crate::hide_coco(tauri_app_handle.clone()).await;
                     }
-                    cmd.arg(&url);
+                }
+            }
+            let permission = ext_on_opened.permission;
 
-                    let output = cmd.output().map_err(|e| format!("failed to spawn [open] due to error [{}]", e))?;
+            match ext_on_opened.ty {
+                ExtensionOnOpenedType::Command { action } => {
+                    log::debug!("open (execute) command [{:?}]", action);
 
-                    if !output.status.success() {
-                      return Err(format!(
-                        "failed to open with app {:?}: {}",
-                        opt_open_with,
+                    let mut cmd = Command::new(action.exec);
+                    if let Some(args) = action.args {
+                        cmd.args(args);
+                    }
+                    let output = cmd.output().map_err(|e| e.to_string())?;
+                    // Sometimes, we wanna see the result in logs even though it doesn't fail.
+                    log::debug!(
+                        "executing open(Command) result, exit code: [{}], stdout: [{}], stderr: [{}]",
+                        output.status,
+                        String::from_utf8_lossy(&output.stdout),
                         String::from_utf8_lossy(&output.stderr)
-                      ));
+                    );
+                    if !output.status.success() {
+                        log::warn!(
+                            "executing open(Command) failed, exit code: [{}], stdout: [{}], stderr: [{}]",
+                            output.status,
+                            String::from_utf8_lossy(&output.stdout),
+                            String::from_utf8_lossy(&output.stderr)
+                        );
+
+                        return Err(format!(
+                            "Command failed, stderr [{}]",
+                            String::from_utf8_lossy(&output.stderr)
+                        ));
                     }
-                } else {
-                    homemade_tauri_shell_open(tauri_app_handle.clone(), url).await?
+                }
+                ExtensionOnOpenedType::Quicklink {
+                    link,
+                    open_with: opt_open_with,
+                } => {
+                    let url = link.concatenate_url(&extra_args);
+
+                    log::debug!("open quicklink [{}] with [{:?}]", url, opt_open_with);
+
+                    cfg_if::cfg_if! {
+                        // The `open_with` functionality is only supported on macOS, provided
+                        // by the `open -a` command.
+                        if #[cfg(target_os = "macos")] {
+                            let mut cmd = Command::new("open");
+                            if let Some(ref open_with) = opt_open_with {
+                                cmd.arg("-a");
+                                cmd.arg(open_with.as_str());
+                            }
+                            cmd.arg(&url);
+
+                            let output = cmd.output().map_err(|e| format!("failed to spawn [open] due to error [{}]", e))?;
+
+                            if !output.status.success() {
+                              return Err(format!(
+                                "failed to open with app {:?}: {}",
+                                opt_open_with,
+                                String::from_utf8_lossy(&output.stderr)
+                              ));
+                            }
+                        } else {
+                            homemade_tauri_shell_open(tauri_app_handle.clone(), url).await?
+                        }
+                    }
+                }
+                ExtensionOnOpenedType::View { page, ui } => {
+                    /*
+                     * Emit an event to let the frontend code open this extension.
+                     *
+                     * Payload `page_and_permission` contains the information needed
+                     * to do that.
+                     *
+                     * See "src/pages/main/index.tsx" for more info.
+                     */
+                    use serde_json::Value as Json;
+                    use serde_json::to_value;
+
+                    let mut extra_args =
+                        extra_args.expect("extra_args is needed to open() a view extension");
+                    let document = extra_args.remove("document").expect(
+                        "extra argument [document] should be provided to open a view extension",
+                    );
+
+                    let page_and_permission: [Json; 4] = [
+                        Json::String(page),
+                        to_value(permission).unwrap(),
+                        to_value(ui).unwrap(),
+                        document,
+                    ];
+                    tauri_app_handle
+                        .emit("open_view_extension", page_and_permission)
+                        .unwrap();
                 }
             }
         }

src-tauri/src/extension/api/apis.toml

@@ -0,0 +1,5 @@
+# Complete Coco extension API list grouped by its category.
+
+fs = [
+  "read_dir"
+]

src-tauri/src/extension/api/fs.rs

@@ -0,0 +1,22 @@
+//! File system APIs
+
+use tokio::fs::read_dir as tokio_read_dir;
+
+#[tauri::command]
+pub(crate) async fn read_dir(path: String) -> Result<Vec<String>, String> {
+    let mut iter = tokio_read_dir(path).await.map_err(|e| e.to_string())?;
+
+    let mut file_names = Vec::new();
+
+    loop {
+        let opt_entry = iter.next_entry().await.map_err(|e| e.to_string())?;
+        let Some(entry) = opt_entry else {
+            break;
+        };
+
+        let file_name = entry.file_name().to_string_lossy().into_owned();
+        file_names.push(file_name);
+    }
+
+    Ok(file_names)
+}

src-tauri/src/extension/api/mod.rs

@@ -0,0 +1,21 @@
+//! The Rust implementation of the Coco extension APIs.
+//!
+//! Extension developers do not use these Rust APIs directly, they use our
+//! [Typescript library][ts_lib], which eventually calls these APIs.
+//!
+//! [ts_lib]: https://github.com/infinilabs/coco-api
+
+pub(crate) mod fs;
+
+use std::collections::HashMap;
+
+/// Return all the available APIs grouped by their category.
+#[tauri::command]
+pub(crate) fn apis() -> HashMap<String, Vec<String>> {
+    static APIS_TOML: &str = include_str!("./apis.toml");
+
+    let apis: HashMap<String, Vec<String>> =
+        toml::from_str(APIS_TOML).expect("Failed to parse apis.toml file");
+
+    apis
+}

src-tauri/src/extension/built_in/application/with_feature.rs

@@ -28,7 +28,7 @@ use serde_json::Value as Json;
 use std::path::Path;
 use std::path::PathBuf;
 use tauri::{AppHandle, Manager, async_runtime};
-use tauri_plugin_fs_pro::{IconOptions, icon, metadata, name};
+use tauri_plugin_fs_pro::{IconOptions, icon, metadata};
 use tauri_plugin_global_shortcut::GlobalShortcutExt;
 use tauri_plugin_global_shortcut::Shortcut;
 use tauri_plugin_global_shortcut::ShortcutEvent;
@@ -36,7 +36,13 @@ use tauri_plugin_global_shortcut::ShortcutState;
 use tauri_plugin_store::StoreExt;
 use tokio::sync::oneshot::Sender as OneshotSender;
 
+// Deprecated.  We no longer index this field, but to be backward-compatible, we
+// have to keep it.
 const FIELD_APP_NAME: &str = "app_name";
+
+const FIELD_APP_NAME_IN_SYSTEM_LANG: &str = "app_name_in_system_lang";
+const FIELD_APP_NAME_ZH: &str = "app_name_zh";
+const FIELD_APP_NAME_EN: &str = "app_name_en";
 const FIELD_ICON_PATH: &str = "icon_path";
 const FIELD_APP_ALIAS: &str = "app_alias";
 const APPLICATION_SEARCH_SOURCE_ID: &str = "application";
@@ -58,37 +64,18 @@ const INDEX_DIR: &str = "local_application_index";
 pub(crate) const QUERYSOURCE_ID_DATASOURCE_ID_DATASOURCE_NAME: &str = "Applications";
 
 pub fn get_default_search_paths() -> Vec<String> {
-    #[cfg(target_os = "macos")]
-    {
-        let home_dir =
-            PathBuf::from(std::env::var_os("HOME").expect("environment variable $HOME not found"));
-        return vec![
-            "/Applications".into(),
-            "/System/Applications".into(),
-            "/System/Library/CoreServices".into(),
-            home_dir
-                .join("Applications")
-                .into_os_string()
-                .into_string()
-                .expect("this path should be UTF-8 encoded"),
-        ];
+    let paths = applications::get_default_search_paths();
+    let mut ret = Vec::with_capacity(paths.len());
+    for search_path in paths {
+        let path_string = search_path
+            .into_os_string()
+            .into_string()
+            .expect("path should be UTF-8 encoded");
+
+        ret.push(path_string);
     }
 
-    #[cfg(not(target_os = "macos"))]
-    {
-        let paths = applications::get_default_search_paths();
-        let mut ret = Vec::with_capacity(paths.len());
-        for search_path in paths {
-            let path_string = search_path
-                .into_os_string()
-                .into_string()
-                .expect("path should be UTF-8 encoded");
-
-            ret.push(path_string);
-        }
-
-        ret
-    }
+    ret
 }
 
 /// Helper function to return `app`'s path.
@@ -115,16 +102,56 @@ fn get_app_path(app: &App) -> String {
         .expect("should be UTF-8 encoded")
 }
 
-/// Helper function to return `app`'s path.
-///
-/// * macOS: extract `app_path`'s file name and remove the file extension
-/// * Windows/Linux: return the name specified in `.desktop` file
-async fn get_app_name(app: &App) -> String {
-    if cfg!(any(target_os = "linux", target_os = "windows")) {
-        app.name.clone()
+/// Helper function to return `app`'s Chinese name.
+async fn get_app_name_zh(app: &App) -> String {
+    // zh_CN or zh-CN
+    if let Some(name) = app.localized_app_names.get("zh_CN") {
+        return name.clone();
+    }
+    if let Some(name) = app.localized_app_names.get("zh-CN") {
+        return name.clone();
+    }
+
+    // zh_Hans or zh-Hans
+    if let Some(name) = app.localized_app_names.get("zh_Hans") {
+        return name.clone();
+    }
+    if let Some(name) = app.localized_app_names.get("zh-Hans") {
+        return name.clone();
+    }
+
+    // Fall back to base name
+    app.name.clone()
+}
+
+/// Helper function to return `app`'s English name.
+async fn get_app_name_en(app: &App) -> String {
+    // en_US or en-US
+    if let Some(name) = app.localized_app_names.get("en_US") {
+        return name.clone();
+    }
+    if let Some(name) = app.localized_app_names.get("en-US") {
+        return name.clone();
+    }
+
+    // English (General)
+    if let Some(name) = app.localized_app_names.get("en") {
+        return name.clone();
+    }
+
+    // Fall back to base name
+    app.name.clone()
+}
+
+/// Helper function to return `app`'s name in system language.
+async fn get_app_name_in_system_lang(app: &App) -> String {
+    let system_lang = crate::util::system_lang::get_system_lang();
+
+    if let Some(name) = app.localized_app_names.get(&system_lang) {
+        name.clone()
     } else {
-        let app_path = get_app_path(app);
-        name(app_path.into()).await
+        // Fall back to base name
+        app.name.clone()
     }
 }
 
@@ -221,9 +248,17 @@ async fn index_applications_if_not_indexed(
     pizza_engine_builder.set_data_store(disk_store);
 
     let mut schema = Schema::new();
-    let field_app_name = Property::builder(FieldType::Text).build();
+    let field_app_name_zh = Property::builder(FieldType::Text).build();
     schema
-        .add_property(FIELD_APP_NAME, field_app_name)
+        .add_property(FIELD_APP_NAME_ZH, field_app_name_zh)
+        .expect("no collision could happen");
+    let field_app_name_en = Property::builder(FieldType::Text).build();
+    schema
+        .add_property(FIELD_APP_NAME_EN, field_app_name_en)
+        .expect("no collision could happen");
+    let field_app_name_in_system_lang = Property::builder(FieldType::Text).build();
+    schema
+        .add_property(FIELD_APP_NAME_IN_SYSTEM_LANG, field_app_name_in_system_lang)
         .expect("no collision could happen");
     let property_icon = Property::builder(FieldType::Text).index(false).build();
     schema
@@ -268,21 +303,39 @@ async fn index_applications_if_not_indexed(
 
         for app in apps.iter() {
             let app_path = get_app_path(app);
-            let app_name = get_app_name(app).await;
+            let app_name_zh = get_app_name_zh(app).await;
+            let app_name_en = get_app_name_en(app).await;
+            let app_name_in_system_lang = get_app_name_in_system_lang(app).await;
             let app_icon_path = get_app_icon_path(&tauri_app_handle, app)
                 .await
                 .map_err(|str| anyhow::anyhow!(str))?;
             let app_alias = get_app_alias(&tauri_app_handle, &app_path).unwrap_or(String::new());
 
-            if app_name.is_empty() || app_name.eq(&tauri_app_handle.package_info().name) {
+            // Skip if all names are empty
+            if app_name_zh.is_empty()
+                && app_name_en.is_empty()
+                && app_name_in_system_lang.is_empty()
+            {
+                continue;
+            }
+
+            // Skip if this is Coco itself
+            //
+            // Coco does not have localized app names, so app_name_en and app_name_zh
+            // should both have value "Coco-AI", so either should work.
+            if app_name_en == tauri_app_handle.package_info().name {
                 continue;
             }
 
             // You cannot write `app_name.clone()` within the `doc!()` macro, we should fix this.
-            let app_name_clone = app_name.clone();
+            let app_name_zh_clone = app_name_zh.clone();
+            let app_name_en_clone = app_name_en.clone();
+            let app_name_in_system_lang = app_name_in_system_lang.clone();
             let app_path_clone = app_path.clone();
             let document = doc!( app_path_clone,  {
-                FIELD_APP_NAME => app_name_clone,
+                FIELD_APP_NAME_ZH => app_name_zh_clone,
+                FIELD_APP_NAME_EN => app_name_en_clone,
+                FIELD_APP_NAME_IN_SYSTEM_LANG => app_name_in_system_lang,
                 FIELD_ICON_PATH => app_icon_path,
                 FIELD_APP_ALIAS => app_alias,
               }
@@ -291,8 +344,8 @@ async fn index_applications_if_not_indexed(
             // We don't error out because one failure won't break the whole thing
             if let Err(e) = writer.create_document(document).await {
                 warn!(
-                    "failed to index application [app name: '{}', app path: '{}'] due to error [{}]",
-                    app_name, app_path, e
+                    "failed to index application [app name zh: '{}', app name en: '{}', app path: '{}'] due to error [{}]",
+                    app_name_zh, app_name_en, app_path, e
                 )
             }
         }
@@ -421,9 +474,19 @@ impl Task for SearchApplicationsTask {
         //
         // It will be passed to Pizza like "Google\nChrome". Using Display impl would result
         // in an invalid query DSL and serde will complain.
+        //
+        // In order to be backward compatible, we still do match and prefix queries to the
+        // app_name field.
         let dsl = format!(
-            "{{ \"query\": {{ \"bool\": {{ \"should\": [ {{ \"match\": {{ \"{FIELD_APP_NAME}\": {:?} }} }}, {{ \"prefix\": {{ \"{FIELD_APP_NAME}\": {:?} }} }} ] }} }} }}",
-            self.query_string, self.query_string
+            "{{ \"query\": {{ \"bool\": {{ \"should\": [ {{ \"match\": {{ \"{FIELD_APP_NAME_ZH}\": {:?} }} }}, {{ \"prefix\": {{ \"{FIELD_APP_NAME_ZH}\": {:?} }} }}, {{ \"match\": {{ \"{FIELD_APP_NAME_EN}\": {:?} }} }}, {{ \"prefix\": {{ \"{FIELD_APP_NAME_EN}\": {:?} }} }}, {{ \"match\": {{ \"{FIELD_APP_NAME_IN_SYSTEM_LANG}\": {:?} }} }}, {{ \"prefix\": {{ \"{FIELD_APP_NAME_IN_SYSTEM_LANG}\": {:?} }} }}, {{ \"match\": {{ \"{FIELD_APP_NAME}\": {:?} }} }}, {{ \"prefix\": {{ \"{FIELD_APP_NAME}\": {:?} }} }} ] }} }} }}",
+            self.query_string,
+            self.query_string,
+            self.query_string,
+            self.query_string,
+            self.query_string,
+            self.query_string,
+            self.query_string,
+            self.query_string
         );
 
         let state = state
@@ -620,7 +683,7 @@ impl SearchSource for ApplicationSearchSource {
 
         let total_hits = search_result.total_hits;
         let source = self.get_type();
-        let hits = pizza_engine_hits_to_coco_hits(search_result.hits);
+        let hits = pizza_engine_hits_to_coco_hits(search_result.hits).await;
 
         Ok(QueryResponse {
             source,
@@ -630,9 +693,11 @@ impl SearchSource for ApplicationSearchSource {
     }
 }
 
-fn pizza_engine_hits_to_coco_hits(
+async fn pizza_engine_hits_to_coco_hits(
     pizza_engine_hits: Option<Vec<PizzaEngineDocument>>,
 ) -> Vec<(Document, f64)> {
+    use crate::util::app_lang::{Lang, get_app_lang};
+
     let Some(engine_hits) = pizza_engine_hits else {
         return Vec::new();
     };
@@ -641,10 +706,43 @@ fn pizza_engine_hits_to_coco_hits(
     for engine_hit in engine_hits {
         let score = engine_hit.score.unwrap_or(0.0) as f64;
         let mut document_fields = engine_hit.fields;
-        let app_name = match document_fields.remove(FIELD_APP_NAME).unwrap() {
-            FieldValue::Text(string) => string,
-            _ => unreachable!("field name is of type Text"),
+
+        // Get both Chinese and English names
+        let opt_app_name_zh = match document_fields.remove(FIELD_APP_NAME_ZH) {
+            Some(FieldValue::Text(string)) => Some(string),
+            _ => None,
         };
+        let opt_app_name_en = match document_fields.remove(FIELD_APP_NAME_EN) {
+            Some(FieldValue::Text(string)) => Some(string),
+            _ => None,
+        };
+        let opt_app_name_deprecated = match document_fields.remove(FIELD_APP_NAME) {
+            Some(FieldValue::Text(string)) => Some(string),
+            _ => None,
+        };
+
+        let app_name: String = {
+            if let Some(legacy_app_name) = opt_app_name_deprecated {
+                // Old version of index, which only contains the field app_name.
+                legacy_app_name
+            } else {
+                // New version of index store the following 2 fields
+
+                let panic_msg = format!(
+                    "new version of index should contain field [{}] and [{}]",
+                    FIELD_APP_NAME_EN, FIELD_APP_NAME_ZH
+                );
+                let app_name_zh = opt_app_name_zh.expect(&panic_msg);
+                let app_name_en = opt_app_name_en.expect(&panic_msg);
+
+                // Choose the appropriate name based on current language
+                match get_app_lang().await {
+                    Lang::zh_CN => app_name_zh,
+                    Lang::en_US => app_name_en,
+                }
+            }
+        };
+
         let app_path = engine_hit.key.expect("key should be set to app path");
         let app_icon_path = match document_fields.remove(FIELD_ICON_PATH).unwrap() {
             FieldValue::Text(string) => string,
@@ -664,7 +762,7 @@ fn pizza_engine_hits_to_coco_hits(
             }),
             id: app_path.clone(),
             category: Some("Application".to_string()),
-            title: Some(app_name.clone()),
+            title: Some(app_name),
             icon: Some(app_icon_path),
             on_opened: Some(on_opened),
             url: Some(url),
@@ -1052,15 +1150,24 @@ pub async fn get_app_search_path(tauri_app_handle: AppHandle) -> Vec<String> {
 
 #[tauri::command]
 pub async fn get_app_list(tauri_app_handle: AppHandle) -> Result<Vec<Extension>, String> {
+    use crate::util::app_lang::{Lang, get_app_lang};
+
     let search_paths = get_app_search_path(tauri_app_handle.clone()).await;
     let apps = list_app_in(search_paths)?;
 
     let mut app_entries = Vec::with_capacity(apps.len());
+    let lang = get_app_lang().await;
 
     for app in apps {
-        let name = get_app_name(&app).await;
+        let name = match lang {
+            Lang::zh_CN => get_app_name_zh(&app).await,
+            Lang::en_US => get_app_name_en(&app).await,
+        };
 
         // filter out Coco-AI
+        //
+        // Coco does not have localized app names, so regardless the chosen language, name
+        // should have value "Coco-AI".
         if name.eq(&tauri_app_handle.package_info().name) {
             continue;
         }
@@ -1128,11 +1235,15 @@ pub async fn get_app_list(tauri_app_handle: AppHandle) -> Result<Vec<Extension>,
             quicklink: None,
             commands: None,
             scripts: None,
+            views: None,
             quicklinks: None,
             alias: Some(alias),
             hotkey,
             enabled,
             settings: None,
+            page: None,
+            ui: None,
+            permission: None,
             screenshots: None,
             url: None,
             version: None,

src-tauri/src/extension/built_in/calculator.rs

@@ -138,7 +138,7 @@ impl SearchSource for CalculatorSource {
         // will only be evaluated against non-whitespace characters.
         let query_string = query_string.trim();
 
-        if query_string.is_empty() || query_string.len() == 1 {
+        if query_string.is_empty() {
             return Ok(QueryResponse {
                 source: self.get_type(),
                 hits: Vec::new(),
@@ -150,6 +150,26 @@ impl SearchSource for CalculatorSource {
         let query_source = self.get_type();
         let base_score = self.base_score;
         let closure = move || -> QueryResponse {
+            let Ok(tokens) = meval::tokenizer::tokenize(&query_string_clone) else {
+                // Invalid expression, return nothing.
+                return QueryResponse {
+                    source: query_source,
+                    hits: Vec::new(),
+                    total_hits: 0,
+                };
+            };
+            // If it is only a number, no need to evaluate it as the result is
+            // this number.
+            // Actually, there is no need to return the result back to the users
+            // in such case because letting them know "x = x" is meaningless.
+            if tokens.len() == 1 && matches!(tokens[0], meval::tokenizer::Token::Number(_)) {
+                return QueryResponse {
+                    source: query_source,
+                    hits: Vec::new(),
+                    total_hits: 0,
+                };
+            }
+
             let res_num = meval::eval_str(&query_string_clone);
 
             match res_num {

src-tauri/src/extension/built_in/file_search/config.rs

@@ -1,5 +1,6 @@
 //! File Search configuration entries definition and getter/setter functions.
 
+use crate::extension::built_in::file_search::implementation::apply_config;
 use serde::Deserialize;
 use serde::Serialize;
 use serde_json::Value;
@@ -23,7 +24,7 @@ static HOME_DIR: LazyLock<String> = LazyLock::new(|| {
         .expect("User home directory should be encoded with UTF-8")
 });
 
-#[derive(Debug, Clone, Serialize, Deserialize, Copy)]
+#[derive(Debug, Clone, Serialize, Deserialize, Copy, PartialEq)]
 pub enum SearchBy {
     Name,
     NameAndContents,
@@ -197,13 +198,19 @@ pub async fn set_file_system_config(
         .store(TAURI_STORE_FILE_SYSTEM_CONFIG)
         .map_err(|e| e.to_string())?;
 
-    store.set(TAURI_STORE_KEY_SEARCH_PATHS, config.search_paths);
-    store.set(TAURI_STORE_KEY_EXCLUDE_PATHS, config.exclude_paths);
-    store.set(TAURI_STORE_KEY_FILE_TYPES, config.file_types);
+    store.set(TAURI_STORE_KEY_SEARCH_PATHS, config.search_paths.as_slice());
+    store.set(
+        TAURI_STORE_KEY_EXCLUDE_PATHS,
+        config.exclude_paths.as_slice(),
+    );
+    store.set(TAURI_STORE_KEY_FILE_TYPES, config.file_types.as_slice());
     store.set(
         TAURI_STORE_KEY_SEARCH_BY,
         serde_json::to_value(config.search_by).unwrap(),
     );
 
+    // Apply the config when we know that this set operation won't fail
+    apply_config(&config)?;
+
     Ok(())
 }

src-tauri/src/extension/built_in/file_search/implementation/linux/gnome.rs

@@ -0,0 +1,388 @@
+//! File system powered by GNOME's Tracker engine.
+
+use super::super::super::EXTENSION_ID;
+use super::super::super::config::FileSearchConfig;
+use super::super::should_be_filtered_out;
+use crate::common::document::DataSourceReference;
+use crate::extension::LOCAL_QUERY_SOURCE_TYPE;
+use crate::util::file::sync_get_file_icon;
+use crate::{
+    common::document::{Document, OnOpened},
+    extension::built_in::file_search::config::SearchBy,
+};
+use camino::Utf8Path;
+use gio::Cancellable;
+use gio::Settings;
+use gio::prelude::SettingsExtManual;
+use glib::GString;
+use glib::collections::strv::StrV;
+use tracker::{SparqlConnection, SparqlCursor, prelude::SparqlCursorExtManual};
+
+/// The service that we will connect to.
+const SERVICE_NAME: &str = "org.freedesktop.Tracker3.Miner.Files";
+
+/// Tracker won't return scores when we are not using full-text seach.  In that
+/// case, we use this score.
+const SCORE: f64 = 1.0;
+
+/// Helper function to return different SPARQL queries depending on the different configurations.
+fn query_sparql(query_string: &str, config: &FileSearchConfig) -> String {
+    match config.search_by {
+        SearchBy::Name => {
+            // Cannot use the inverted index as that searches for all the attributes,
+            // but we only want to search the filename.
+            format!(
+                "SELECT nie:url(?file_item) WHERE {{ ?file_item nfo:fileName ?fileName . FILTER(regex(?fileName, '{query_string}', 'i')) }}"
+            )
+        }
+        SearchBy::NameAndContents => {
+            // Full-text search against all attributes
+            // OR
+            // filename search
+            format!(
+                "SELECT nie:url(?file_item) fts:rank(?file_item) WHERE {{ {{ ?file_item fts:match '{query_string}' }} UNION {{ ?file_item nfo:fileName ?fileName . FILTER(regex(?fileName, '{query_string}', 'i'))  }} }} ORDER BY DESC fts:rank(?file_item)"
+            )
+        }
+    }
+}
+
+/// Helper function to replace unsupported characters with whitespace.
+///
+/// Tracker will error out if it encounters these characters.
+///
+/// The complete list of unsupported characters is unknown and we don't know how
+/// to escape them, so let's replace them.
+fn query_string_cleanup(old: &str) -> String {
+    const UNSUPPORTED_CHAR: [char; 3] = ['\'', '\n', '\\'];
+
+    // Using len in bytes is ok
+    let mut chars = Vec::with_capacity(old.len());
+    for char in old.chars() {
+        if UNSUPPORTED_CHAR.contains(&char) {
+            chars.push(' ');
+        } else {
+            chars.push(char);
+        }
+    }
+
+    chars.into_iter().collect()
+}
+
+struct Query {
+    conn: SparqlConnection,
+    cursor: SparqlCursor,
+}
+
+impl Query {
+    fn new(query_string: &str, config: &FileSearchConfig) -> Result<Self, String> {
+        let query_string = query_string_cleanup(query_string);
+        let sparql = query_sparql(&query_string, config);
+        let conn =
+            SparqlConnection::bus_new(SERVICE_NAME, None, None).map_err(|e| e.to_string())?;
+        let cursor = conn
+            .query(&sparql, Cancellable::NONE)
+            .map_err(|e| e.to_string())?;
+
+        Ok(Self { conn, cursor })
+    }
+}
+
+impl Drop for Query {
+    fn drop(&mut self) {
+        self.cursor.close();
+        self.conn.close();
+    }
+}
+
+impl Iterator for Query {
+    /// It yields a tuple `(file path, score)`
+    type Item = Result<(String, f64), String>;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        loop {
+            let has_next = match self
+                .cursor
+                .next(Cancellable::NONE)
+                .map_err(|e| e.to_string())
+            {
+                Ok(has_next) => has_next,
+                Err(err_str) => return Some(Err(err_str)),
+            };
+
+            if !has_next {
+                return None;
+            }
+
+            // The first column is the URL
+            let file_url_column = self.cursor.string(0);
+            // It could be None (or NULL ptr if you use C), I have no clue why.
+            let opt_str = file_url_column.as_ref().map(|gstr| gstr.as_str());
+
+            match opt_str {
+                Some(url) => {
+                    // The returned URL has a prefix that we need to trim
+                    const PREFIX: &str = "file://";
+                    const PREFIX_LEN: usize = PREFIX.len();
+
+                    let file_path = url[PREFIX_LEN..].to_string();
+                    assert!(!file_path.is_empty());
+                    assert_ne!(file_path, "/", "file search should not hit the root path");
+
+                    let score = {
+                        // The second column is the score, this column may not
+                        // exist.  We use SCORE if the real value is absent.
+                        let score_column = self.cursor.string(1);
+                        let opt_score_str = score_column.as_ref().map(|g_str| g_str.as_str());
+                        let opt_score = opt_score_str.map(|str| {
+                            str.parse::<f64>()
+                                .expect("score should be valid for type f64")
+                        });
+
+                        opt_score.unwrap_or(SCORE)
+                    };
+
+                    return Some(Ok((file_path, score)));
+                }
+                None => {
+                    // another try
+                    continue;
+                }
+            }
+        }
+    }
+}
+
+pub(crate) async fn hits(
+    query_string: &str,
+    from: usize,
+    size: usize,
+    config: &FileSearchConfig,
+) -> Result<Vec<(Document, f64)>, String> {
+    // Special cases that will make querying faster.
+    if query_string.is_empty() || size == 0 || config.search_paths.is_empty() {
+        return Ok(Vec::new());
+    }
+
+    let mut result_hits = Vec::with_capacity(size);
+
+    let need_to_skip = {
+        if matches!(config.search_by, SearchBy::Name) {
+            // We don't use full-text search in this case, the returned documents
+            // won't be scored, the query hits won't be sorted, so processing the
+            // from parameter is meaningless.
+            false
+        } else {
+            from > 0
+        }
+    };
+    let mut num_skipped = 0;
+    let should_skip = from;
+
+    let query = Query::new(query_string, config)?;
+    for res_entry in query {
+        let (file_path, score) = res_entry?;
+
+        // This should be called before processing the `from` parameter.
+        if should_be_filtered_out(config, &file_path, true, true, true) {
+            continue;
+        }
+
+        // Process the `from` parameter.
+        if need_to_skip && num_skipped < should_skip {
+            // Skip this
+            num_skipped += 1;
+            continue;
+        }
+
+        let icon = sync_get_file_icon(&file_path);
+        let file_path_of_type_path = camino::Utf8Path::new(&file_path);
+        let r#where = file_path_of_type_path
+            .parent()
+            .unwrap_or_else(|| {
+                panic!(
+                    "expect path [{}] to have a parent, but it does not",
+                    file_path
+                );
+            })
+            .to_string();
+
+        let file_name = file_path_of_type_path.file_name().unwrap_or_else(|| {
+            panic!(
+                "expect path [{}] to have a file name, but it does not",
+                file_path
+            );
+        });
+        let on_opened = OnOpened::Document {
+            url: file_path.to_string(),
+        };
+
+        let doc = Document {
+            id: file_path.to_string(),
+            title: Some(file_name.to_string()),
+            source: Some(DataSourceReference {
+                r#type: Some(LOCAL_QUERY_SOURCE_TYPE.into()),
+                name: Some(EXTENSION_ID.into()),
+                id: Some(EXTENSION_ID.into()),
+                icon: Some(String::from("font_Filesearch")),
+            }),
+            category: Some(r#where),
+            on_opened: Some(on_opened),
+            url: Some(file_path),
+            icon: Some(icon.to_string()),
+            ..Default::default()
+        };
+
+        result_hits.push((doc, score));
+
+        // Collected enough documents, return
+        if result_hits.len() >= size {
+            break;
+        }
+    }
+
+    Ok(result_hits)
+}
+
+fn ensure_path_in_recursive_indexing_scope(list: &mut StrV, path: &str) {
+    for item in list.iter() {
+        let item_path = Utf8Path::new(item.as_str());
+        let path = Utf8Path::new(path);
+
+        // It is already covered or listed
+        if path.starts_with(item_path) {
+            return;
+        }
+    }
+    list.push(
+        GString::from_utf8_checked(path.as_bytes().to_vec())
+            .expect("search_path_str contains an interior NUL"),
+    );
+}
+
+fn ensure_path_and_descendants_not_in_single_indexing_scope(list: &mut StrV, path: &str) {
+    // Indexes to the items that should be removed
+    let mut item_to_remove = Vec::new();
+    for (idx, item) in list.iter().enumerate() {
+        let item_path = Utf8Path::new(item.as_str());
+        let path = Utf8Path::new(path);
+
+        if item_path.starts_with(path) {
+            item_to_remove.push(idx);
+        }
+    }
+
+    // Reverse the indexes so that the remove operation won't invalidate them.
+    for idx in item_to_remove.into_iter().rev() {
+        list.remove(idx);
+    }
+}
+
+pub(crate) fn apply_config(config: &FileSearchConfig) -> Result<(), String> {
+    // Tracker provides the following configuration entries to allow users to
+    // tweak the indexing scope:
+    //
+    // 1. ignored-directories: A list of names, directories with such names will be ignored.
+    //    ['po', 'CVS', 'core-dumps', 'lost+found']
+    // 2. ignored-directories-with-content: Avoid any directory containing a file blocklisted here
+    //    ['.trackerignore', '.git', '.hg', '.nomedia']
+    // 3. ignored-files: List of file patterns to avoid
+    //    ['*~', '*.o', '*.la', '*.lo', '*.loT', '*.in', '*.m4', '*.rej', ...]
+    // 4. index-recursive-directories: List of directories to index recursively
+    //    ['&DESKTOP', '&DOCUMENTS', '&MUSIC', '&PICTURES', '&VIDEOS']
+    // 5. index-single-directories: List of directories to index without inspecting subfolders,
+    //    ['$HOME', '&DOWNLOAD']
+    //
+    // The first 3 entries specify patterns, in order to use them, we have to walk
+    // through the whole directory tree listed in search paths, which is impractical.
+    // So we only use the last 2 entries.
+    //
+    //
+    // Just want to mention that setting search path to "/home" could break Tracker:
+    //
+    // ```text
+    // Unknown target graph for uri:'file:///home' and mime:'inode/directory'
+    // ```
+    //
+    // See the related bug reports:
+    //
+    // https://gitlab.gnome.org/GNOME/localsearch/-/issues/313
+    // https://bugs.launchpad.net/bugs/2077181
+    //
+    //
+    // There is nothing we can do.
+
+    const TRACKER_SETTINGS_SCHEMA: &str = "org.freedesktop.Tracker3.Miner.Files";
+    const KEY_INDEX_RECURSIVE_DIRECTORIES: &str = "index-recursive-directories";
+    const KEY_INDEX_SINGLE_DIRECTORIES: &str = "index-single-directories";
+
+    let search_paths = &config.search_paths;
+
+    let settings = Settings::new(TRACKER_SETTINGS_SCHEMA);
+    let mut recursive_list: StrV = settings.strv(KEY_INDEX_RECURSIVE_DIRECTORIES);
+    let mut single_list: StrV = settings.strv(KEY_INDEX_SINGLE_DIRECTORIES);
+
+    for search_path in search_paths {
+        // We want our search path to be included in the recursive directories or
+        // any directory within the list covers it.
+        ensure_path_in_recursive_indexing_scope(&mut recursive_list, search_path);
+        // We want our search path and its any descendants are not listed in
+        // the index directories list.
+        ensure_path_and_descendants_not_in_single_indexing_scope(&mut single_list, search_path);
+    }
+
+    settings
+        .set_strv(KEY_INDEX_RECURSIVE_DIRECTORIES, recursive_list)
+        .expect("key is not read-only");
+    settings
+        .set_strv(KEY_INDEX_SINGLE_DIRECTORIES, single_list)
+        .expect("key is not be read-only");
+
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_query_string_cleanup_basic() {
+        assert_eq!(query_string_cleanup("test"), "test");
+        assert_eq!(query_string_cleanup("hello world"), "hello world");
+        assert_eq!(query_string_cleanup("file.txt"), "file.txt");
+    }
+
+    #[test]
+    fn test_query_string_cleanup_unsupported_chars() {
+        assert_eq!(query_string_cleanup("test'file"), "test file");
+        assert_eq!(query_string_cleanup("test\nfile"), "test file");
+        assert_eq!(query_string_cleanup("test\\file"), "test file");
+    }
+
+    #[test]
+    fn test_query_string_cleanup_multiple_unsupported() {
+        assert_eq!(query_string_cleanup("test'file\nname"), "test file name");
+        assert_eq!(query_string_cleanup("test\'file"), "test file");
+        assert_eq!(query_string_cleanup("\n'test"), "  test");
+    }
+
+    #[test]
+    fn test_query_string_cleanup_edge_cases() {
+        assert_eq!(query_string_cleanup(""), "");
+        assert_eq!(query_string_cleanup("'"), " ");
+        assert_eq!(query_string_cleanup("\n"), " ");
+        assert_eq!(query_string_cleanup("\\"), " ");
+        assert_eq!(query_string_cleanup(" '\n\\ "), "     ");
+    }
+
+    #[test]
+    fn test_query_string_cleanup_mixed_content() {
+        assert_eq!(
+            query_string_cleanup("document's content\nwith\\backslash"),
+            "document s content with backslash"
+        );
+        assert_eq!(
+            query_string_cleanup("path/to'file\nextension\\test"),
+            "path/to file extension test"
+        );
+    }
+}

src-tauri/src/extension/built_in/file_search/implementation/linux/kde.rs

@@ -0,0 +1,308 @@
+//! File search for KDE, powered by its Baloo engine.
+
+use super::super::super::EXTENSION_ID;
+use super::super::super::config::FileSearchConfig;
+use super::super::super::config::SearchBy;
+use super::super::should_be_filtered_out;
+use crate::common::document::{DataSourceReference, Document};
+use crate::extension::LOCAL_QUERY_SOURCE_TYPE;
+use crate::extension::OnOpened;
+use crate::util::file::sync_get_file_icon;
+use camino::Utf8Path;
+use configparser::ini::Ini;
+use configparser::ini::WriteOptions;
+use futures::stream::Stream;
+use futures::stream::StreamExt;
+use std::os::fd::OwnedFd;
+use std::path::PathBuf;
+use tokio::io::AsyncBufReadExt;
+use tokio::io::BufReader;
+use tokio::process::Child;
+use tokio::process::Command;
+use tokio_stream::wrappers::LinesStream;
+
+/// Baloo does not support scoring, use this score for all the documents.
+const SCORE: f64 = 1.0;
+
+/// KDE6 updates the binary name to "baloosearch6", but I believe there still have
+/// distros using the original name.  So we need to check both.
+fn cli_tool_lookup() -> Option<PathBuf> {
+    use which::which;
+
+    let res_path = which("baloosearch").or_else(|_| which("baloosearch6"));
+    res_path.ok()
+}
+
+pub(crate) async fn hits(
+    query_string: &str,
+    _from: usize,
+    size: usize,
+    config: &FileSearchConfig,
+) -> Result<Vec<(Document, f64)>, String> {
+    // Special cases that will make querying faster.
+    if query_string.is_empty() || size == 0 || config.search_paths.is_empty() {
+        return Ok(Vec::new());
+    }
+
+    // If the tool is not found, return an empty result as well.
+    let Some(tool_path) = cli_tool_lookup() else {
+        return Ok(Vec::new());
+    };
+
+    let (mut iter, _baloosearch_child_process) =
+        execute_baloosearch_query(tool_path, query_string, size, config)?;
+
+    // Convert results to documents
+    let mut hits: Vec<(Document, f64)> = Vec::new();
+    while let Some(res_file_path) = iter.next().await {
+        let file_path = res_file_path.map_err(|io_err| io_err.to_string())?;
+
+        let icon = sync_get_file_icon(&file_path);
+        let file_path_of_type_path = camino::Utf8Path::new(&file_path);
+        let r#where = file_path_of_type_path
+            .parent()
+            .unwrap_or_else(|| {
+                panic!(
+                    "expect path [{}] to have a parent, but it does not",
+                    file_path
+                );
+            })
+            .to_string();
+
+        let file_name = file_path_of_type_path.file_name().unwrap_or_else(|| {
+            panic!(
+                "expect path [{}] to have a file name, but it does not",
+                file_path
+            );
+        });
+        let on_opened = OnOpened::Document {
+            url: file_path.clone(),
+        };
+
+        let doc = Document {
+            id: file_path.clone(),
+            title: Some(file_name.to_string()),
+            source: Some(DataSourceReference {
+                r#type: Some(LOCAL_QUERY_SOURCE_TYPE.into()),
+                name: Some(EXTENSION_ID.into()),
+                id: Some(EXTENSION_ID.into()),
+                icon: Some(String::from("font_Filesearch")),
+            }),
+            category: Some(r#where),
+            on_opened: Some(on_opened),
+            url: Some(file_path),
+            icon: Some(icon.to_string()),
+            ..Default::default()
+        };
+
+        hits.push((doc, SCORE));
+    }
+
+    Ok(hits)
+}
+
+/// Return an array containing the `baloosearch` command and its arguments.
+fn build_baloosearch_query(
+    tool_path: PathBuf,
+    query_string: &str,
+    config: &FileSearchConfig,
+) -> Vec<String> {
+    let tool_path = tool_path
+        .into_os_string()
+        .into_string()
+        .expect("binary path should be UTF-8 encoded");
+
+    let mut args = vec![tool_path];
+
+    match config.search_by {
+        SearchBy::Name => {
+            args.push(format!("filename:{query_string}"));
+        }
+        SearchBy::NameAndContents => {
+            args.push(query_string.to_string());
+        }
+    }
+
+    for search_path in config.search_paths.iter() {
+        args.extend_from_slice(&["-d".into(), search_path.clone()]);
+    }
+
+    args
+}
+
+/// Spawn the `baloosearch` child process and return an async iterator over its output,
+/// allowing us to collect the results asynchronously.
+///
+/// # Return value:
+///
+/// * impl Stream: an async iterator that will yield the matched files
+/// * Child: The handle to the baloosearch process.  The child process will be
+///   killed when this handle gets dropped so we need to keep it alive util we
+///   exhaust the stream.
+fn execute_baloosearch_query(
+    tool_path: PathBuf,
+    query_string: &str,
+    size: usize,
+    config: &FileSearchConfig,
+) -> Result<(impl Stream<Item = std::io::Result<String>>, Child), String> {
+    let args = build_baloosearch_query(tool_path, query_string, config);
+
+    let (rx, tx) = std::io::pipe().unwrap();
+    let rx_owned = OwnedFd::from(rx);
+    let async_rx = tokio::net::unix::pipe::Receiver::from_owned_fd(rx_owned).unwrap();
+    let buffered_rx = BufReader::new(async_rx);
+    let lines = LinesStream::new(buffered_rx.lines());
+
+    let child = Command::new(&args[0])
+        .args(&args[1..])
+        .stdout(tx)
+        .stderr(std::process::Stdio::null())
+        // The child process will be killed when the Child instance gets dropped.
+        .kill_on_drop(true)
+        .spawn()
+        .map_err(|e| format!("Failed to spawn baloosearch: {e}"))?;
+    let config_clone = config.clone();
+    let iter = lines
+        .filter(move |res_path| {
+            std::future::ready({
+                match res_path {
+                    Ok(path) => !should_be_filtered_out(&config_clone, path, false, true, true),
+                    Err(_) => {
+                        // Don't filter out Err() values
+                        true
+                    }
+                }
+            })
+        })
+        .take(size);
+
+    Ok((iter, child))
+}
+
+pub(crate) fn apply_config(config: &FileSearchConfig) -> Result<(), String> {
+    // Users can tweak Baloo via its configuration file, below are the fields that
+    // we need to modify:
+    //
+    // * Indexing-Enabled: turn indexing on or off
+    // * only basic indexing: If true, Baloo only indexes file names
+    // * folders: directories to index
+    // * exclude folders: directories to skip
+    //
+    // ```ini
+    // [Basic Settings]
+    // Indexing-Enabled=true
+    //
+    // [General]
+    // only basic indexing=true
+    // folders[$e]=$HOME/
+    // exclude folders[$e]=$HOME/FolderA/,$HOME/FolderB/
+    // ```
+
+    const SECTION_GENERAL: &str = "General";
+    const KEY_INCLUDE_FOLDERS: &str = "folders[$e]";
+    const KEY_EXCLUDE_FOLDERS: &str = "exclude folders[$e]";
+    const FOLDERS_SEPARATOR: &str = ",";
+
+    let rc_file_path = {
+        let mut home = dirs::home_dir()
+            .expect("cannot find the home directory, Coco should never run in such a environment");
+        home.push(".config/baloofilerc");
+        home
+    };
+
+    // Parse and load the rc file, it is in format INI
+    //
+    // Use `new_cs()`, the case-sensitive version of constructor as the config
+    // file contains uppercase letters, so it is case-sensitive.
+    let mut baloo_config = Ini::new_cs();
+    if rc_file_path.try_exists().map_err(|e| e.to_string())? {
+        let _ = baloo_config.load(rc_file_path.as_path())?;
+    }
+
+    // Ensure indexing is enabled
+    let _ = baloo_config.setstr("Basic Settings", "Indexing-Enabled", Some("true"));
+
+    // Let baloo index file content if we need that
+    if config.search_by == SearchBy::NameAndContents {
+        let _ = baloo_config.setstr(SECTION_GENERAL, "only basic indexing", Some("false"));
+    }
+
+    let mut include_folders = {
+        match baloo_config.get(SECTION_GENERAL, KEY_INCLUDE_FOLDERS) {
+            Some(str) => str
+                .split(FOLDERS_SEPARATOR)
+                .map(|str| str.to_string())
+                .collect::<Vec<String>>(),
+            None => Vec::new(),
+        }
+    };
+
+    let mut exclude_folders = {
+        match baloo_config.get(SECTION_GENERAL, KEY_EXCLUDE_FOLDERS) {
+            Some(str) => str
+                .split(FOLDERS_SEPARATOR)
+                .map(|str| str.to_string())
+                .collect::<Vec<String>>(),
+            None => Vec::new(),
+        }
+    };
+
+    fn ensure_path_included_include_folders(
+        include_folders: &mut Vec<String>,
+        search_path: &Utf8Path,
+    ) {
+        for include_folder in include_folders.iter() {
+            let include_folder = Utf8Path::new(include_folder.as_str());
+            if search_path.starts_with(include_folder) {
+                return;
+            }
+        }
+
+        include_folders.push(search_path.as_str().to_string());
+    }
+
+    fn ensure_path_and_descendants_not_excluded(
+        exclude_folders: &mut Vec<String>,
+        search_path: &Utf8Path,
+    ) {
+        let mut items_to_remove = Vec::new();
+        for (idx, exclude_folder) in exclude_folders.iter().enumerate() {
+            let exclude_folder = Utf8Path::new(exclude_folder);
+
+            if exclude_folder.starts_with(search_path) {
+                items_to_remove.push(idx);
+            }
+        }
+
+        for idx in items_to_remove.into_iter().rev() {
+            exclude_folders.remove(idx);
+        }
+    }
+
+    for search_path in config.search_paths.iter() {
+        let search_path = Utf8Path::new(search_path.as_str());
+
+        ensure_path_included_include_folders(&mut include_folders, search_path);
+        ensure_path_and_descendants_not_excluded(&mut exclude_folders, search_path);
+    }
+
+    let include_folders_str: String = include_folders.as_slice().join(FOLDERS_SEPARATOR);
+    let exclude_folders_str: String = exclude_folders.as_slice().join(FOLDERS_SEPARATOR);
+
+    let _ = baloo_config.set(
+        SECTION_GENERAL,
+        KEY_INCLUDE_FOLDERS,
+        Some(include_folders_str),
+    );
+    let _ = baloo_config.set(
+        SECTION_GENERAL,
+        KEY_EXCLUDE_FOLDERS,
+        Some(exclude_folders_str),
+    );
+
+    baloo_config
+        .pretty_write(rc_file_path.as_path(), &WriteOptions::new())
+        .map_err(|e| e.to_string())?;
+
+    Ok(())
+}

src-tauri/src/extension/built_in/file_search/implementation/linux/mod.rs

@@ -0,0 +1,50 @@
+mod gnome;
+mod kde;
+
+use super::super::config::FileSearchConfig;
+use crate::common::document::Document;
+use crate::util::LinuxDesktopEnvironment;
+use crate::util::get_linux_desktop_environment;
+use std::ops::Deref;
+use std::sync::LazyLock;
+
+static DESKTOP_ENVIRONMENT: LazyLock<Option<LinuxDesktopEnvironment>> =
+    LazyLock::new(|| get_linux_desktop_environment());
+
+/// Dispatch to implementations powered by different backends.
+pub(crate) async fn hits(
+    query_string: &str,
+    from: usize,
+    size: usize,
+    config: &FileSearchConfig,
+) -> Result<Vec<(Document, f64)>, String> {
+    let de = DESKTOP_ENVIRONMENT.deref();
+    match de {
+        Some(LinuxDesktopEnvironment::Gnome) => gnome::hits(query_string, from, size, config).await,
+        Some(LinuxDesktopEnvironment::Kde) => kde::hits(query_string, from, size, config).await,
+        Some(LinuxDesktopEnvironment::Unsupported {
+            xdg_current_desktop: _,
+        }) => {
+            return Err("file search is not supported on this desktop environment".into());
+        }
+        None => {
+            return Err("could not determine Linux desktop environment".into());
+        }
+    }
+}
+
+pub(crate) fn apply_config(config: &FileSearchConfig) -> Result<(), String> {
+    let de = DESKTOP_ENVIRONMENT.deref();
+    match de {
+        Some(LinuxDesktopEnvironment::Gnome) => gnome::apply_config(config),
+        Some(LinuxDesktopEnvironment::Kde) => kde::apply_config(config),
+        Some(LinuxDesktopEnvironment::Unsupported {
+            xdg_current_desktop: _,
+        }) => {
+            return Err("file search is not supported on this desktop environment".into());
+        }
+        None => {
+            return Err("could not determine Linux desktop environment".into());
+        }
+    }
+}

src-tauri/src/extension/built_in/file_search/implementation/macos.rs

@@ -1,10 +1,11 @@
 use super::super::EXTENSION_ID;
 use super::super::config::FileSearchConfig;
 use super::super::config::SearchBy;
+use super::should_be_filtered_out;
 use crate::common::document::{DataSourceReference, Document};
 use crate::extension::LOCAL_QUERY_SOURCE_TYPE;
 use crate::extension::OnOpened;
-use crate::util::file::get_file_icon;
+use crate::util::file::sync_get_file_icon;
 use futures::stream::Stream;
 use futures::stream::StreamExt;
 use std::os::fd::OwnedFd;
@@ -24,7 +25,7 @@ pub(crate) async fn hits(
     size: usize,
     config: &FileSearchConfig,
 ) -> Result<Vec<(Document, f64)>, String> {
-    let (mut iter, mut mdfind_child_process) =
+    let (mut iter, _mdfind_child_process) =
         execute_mdfind_query(&query_string, from, size, &config)?;
 
     // Convert results to documents
@@ -32,7 +33,7 @@ pub(crate) async fn hits(
     while let Some(res_file_path) = iter.next().await {
         let file_path = res_file_path.map_err(|io_err| io_err.to_string())?;
 
-        let icon = get_file_icon(file_path.clone()).await;
+        let icon = sync_get_file_icon(&file_path);
         let file_path_of_type_path = camino::Utf8Path::new(&file_path);
         let r#where = file_path_of_type_path
             .parent()
@@ -72,12 +73,6 @@ pub(crate) async fn hits(
 
         hits.push((doc, SCORE));
     }
-    // Kill the mdfind process once we get the needed results to prevent zombie
-    // processes.
-    mdfind_child_process
-        .kill()
-        .await
-        .map_err(|e| format!("{:?}", e))?;
 
     Ok(hits)
 }
@@ -88,13 +83,28 @@ fn build_mdfind_query(query_string: &str, config: &FileSearchConfig) -> Vec<Stri
 
     match config.search_by {
         SearchBy::Name => {
-            args.push(format!("kMDItemFSName == '*{}*'", query_string));
+            // The tailing char 'c' makes the search case-insensitive.
+            //
+            // According to [1], we should use this syntax "kMDItemFSName ==[c] '*{}*'",
+            // but it does not work on my machine (macOS 26 beta 7), and you
+            // can find similar complaints as well [2].
+            //
+            // [1]: https://developer.apple.com/library/archive/documentation/Carbon/Conceptual/SpotlightQuery/Concepts/QueryFormat.html
+            // [2]: https://apple.stackexchange.com/q/263671/394687
+            args.push(format!("kMDItemFSName == '*{}*'c", query_string));
         }
         SearchBy::NameAndContents => {
-            args.push(format!(
-                "kMDItemFSName == '*{}*' || kMDItemTextContent == '{}'",
-                query_string, query_string
-            ));
+            // Do not specify any File System Metadata Attribute Keys to search
+            // all of them, it is case-insensitive by default.
+            //
+            // Previously, we use:
+            //
+            //    "kMDItemFSName == '*{}*' || kMDItemTextContent == '{}'"
+            //
+            // But the kMDItemTextContent attribute does not work as expected.
+            // For example, if a PDF document contains both "Waterloo" and
+            // "waterloo", it is only matched by "Waterloo".
+            args.push(query_string.to_string());
         }
     }
 
@@ -114,8 +124,9 @@ fn build_mdfind_query(query_string: &str, config: &FileSearchConfig) -> Vec<Stri
 /// # Return value:
 ///
 /// * impl Stream: an async iterator that will yield the matched files
-/// * Child: The handle to the mdfind process, we need to kill it once we
-///   collect all the results to avoid zombie processes.
+/// * Child: The handle to the mdfind process.  The child process will be killed
+///   when this handle gets dropped, we need to keep it alive until we exhaust
+///   all the query results.
 fn execute_mdfind_query(
     query_string: &str,
     from: usize,
@@ -133,6 +144,7 @@ fn execute_mdfind_query(
         .args(&args[1..])
         .stdout(tx)
         .stderr(std::process::Stdio::null())
+        .kill_on_drop(true)
         .spawn()
         .map_err(|e| format!("Failed to spawn mdfind: {}", e))?;
     let config_clone = config.clone();
@@ -140,7 +152,7 @@ fn execute_mdfind_query(
         .filter(move |res_path| {
             std::future::ready({
                 match res_path {
-                    Ok(path) => !should_be_filtered_out(&config_clone, path),
+                    Ok(path) => !should_be_filtered_out(&config_clone, path, false, true, true),
                     Err(_) => {
                         // Don't filter out Err() values
                         true
@@ -154,33 +166,25 @@ fn execute_mdfind_query(
     Ok((iter, child))
 }
 
-/// If `file_path` should be removed from the search results given the filter
-/// conditions specified in `config`.
-fn should_be_filtered_out(config: &FileSearchConfig, file_path: &str) -> bool {
-    let is_excluded = config
-        .exclude_paths
-        .iter()
-        .any(|exclude_path| file_path.starts_with(exclude_path));
-
-    if is_excluded {
-        return true;
-    }
-
-    let matches_file_type = if config.file_types.is_empty() {
-        true
-    } else {
-        let path_obj = camino::Utf8Path::new(&file_path);
-        if let Some(extension) = path_obj.extension() {
-            config
-                .file_types
-                .iter()
-                .any(|file_type| file_type == extension)
-        } else {
-            // `config.file_types` is not empty, then the search results
-            // should have extensions.
-            false
-        }
-    };
-
-    !matches_file_type
+pub(crate) fn apply_config(_: &FileSearchConfig) -> Result<(), String> {
+    // By default, macOS indexes all the files within a volume if indexing is
+    // enabled. So, to ensure our search paths are indexed by Spotlight,
+    // theoretically, we can do the following things:
+    //
+    // 1. Ensure indexing is enabled on the volumes where our search paths reside.
+    //    However, we cannot do this as doing so requires `sudo`.
+    //
+    // 2. Ensure the search paths are not excluded from indexing scope. Users can
+    //    stop Spotlight from indexing a directory by:
+    //    1. adding it to the "Privacy" list in 'System Settings'. Coco cannot
+    //       modify this list, since the only way to change it is manually
+    //       through System Settings.
+    //    2. Renaming directory name, adding a `.noindex` file extension to it.
+    //       I don't want to use this trick, users won't feel comfortable and it
+    //       could break at any time.
+    //    3. Creating a `.metadata_never_index` file within the directory (no longer works
+    //       since macOS Mojave)
+    //
+    // There is nothing we can do.
+    Ok(())
 }

src-tauri/src/extension/built_in/file_search/implementation/mod.rs

@@ -1,10 +1,396 @@
-#[cfg(target_os = "macos")]
-mod macos;
-#[cfg(target_os = "windows")]
-mod windows;
+use cfg_if::cfg_if;
 
-// `hits()` function is platform-specific, export the corresponding impl.
-#[cfg(target_os = "macos")]
-pub(crate) use macos::hits;
-#[cfg(target_os = "windows")]
-pub(crate) use windows::hits;
+// * hits: the implementation of search
+//
+// * apply_config: Routines that should be performed to keep "other things"
+//   synchronous with the passed configuration.
+//   Currently, "other things" only include system indexer's setting entries.
+cfg_if! {
+    if #[cfg(target_os = "linux")] {
+        mod linux;
+        pub(crate) use linux::hits;
+        pub(crate) use linux::apply_config;
+    } else if #[cfg(target_os = "macos")] {
+        mod macos;
+        pub(crate) use macos::hits;
+        pub(crate) use macos::apply_config;
+    } else if #[cfg(target_os = "windows")] {
+        mod windows;
+        pub(crate) use windows::hits;
+        pub(crate) use windows::apply_config;
+    }
+}
+
+cfg_if! {
+    if #[cfg(not(target_os = "windows"))] {
+        use super::config::FileSearchConfig;
+        use camino::Utf8Path;
+    }
+}
+
+/// If `file_path` should be removed from the search results given the filter
+/// conditions specified in `config`.
+#[cfg(not(target_os = "windows"))] // Not used on Windows
+pub(crate) fn should_be_filtered_out(
+    config: &FileSearchConfig,
+    file_path: &str,
+    check_search_paths: bool,
+    check_exclude_paths: bool,
+    check_file_type: bool,
+) -> bool {
+    let file_path = Utf8Path::new(file_path);
+
+    if check_search_paths {
+        // search path
+        let in_search_paths = config.search_paths.iter().any(|search_path| {
+            let search_path = Utf8Path::new(search_path);
+            file_path.starts_with(search_path)
+        });
+        if !in_search_paths {
+            return true;
+        }
+    }
+
+    if check_exclude_paths {
+        // exclude path
+        let is_excluded = config
+            .exclude_paths
+            .iter()
+            .any(|exclude_path| file_path.starts_with(exclude_path));
+        if is_excluded {
+            return true;
+        }
+    }
+
+    if check_file_type {
+        // file type
+        let matches_file_type = if config.file_types.is_empty() {
+            true
+        } else {
+            let path_obj = camino::Utf8Path::new(&file_path);
+            if let Some(extension) = path_obj.extension() {
+                config
+                    .file_types
+                    .iter()
+                    .any(|file_type| file_type == extension)
+            } else {
+                // `config.file_types` is not empty, the hit files should have extensions.
+                false
+            }
+        };
+
+        if !matches_file_type {
+            return true;
+        }
+    }
+
+    false
+}
+
+// should_be_filtered_out() is not defined for Windows
+#[cfg(all(test, not(target_os = "windows")))]
+mod tests {
+    use super::super::config::SearchBy;
+    use super::*;
+
+    #[test]
+    fn test_should_be_filtered_out_with_no_check() {
+        let config = FileSearchConfig {
+            search_paths: vec!["/home/user/Documents".to_string()],
+            exclude_paths: vec![],
+            file_types: vec!["fffffff".into()],
+            search_by: SearchBy::Name,
+        };
+
+        assert!(!should_be_filtered_out(
+            &config, "abbc", false, false, false
+        ));
+    }
+
+    #[test]
+    fn test_should_be_filtered_out_search_paths() {
+        let config = FileSearchConfig {
+            search_paths: vec![
+                "/home/user/Documents".to_string(),
+                "/home/user/Downloads".to_string(),
+            ],
+            exclude_paths: vec![],
+            file_types: vec![],
+            search_by: SearchBy::Name,
+        };
+
+        // Files in search paths should not be filtered
+        assert!(!should_be_filtered_out(
+            &config,
+            "/home/user/Documents/file.txt",
+            true,
+            true,
+            true
+        ));
+        assert!(!should_be_filtered_out(
+            &config,
+            "/home/user/Downloads/image.jpg",
+            true,
+            true,
+            true
+        ));
+        assert!(!should_be_filtered_out(
+            &config,
+            "/home/user/Documents/folder/file.txt",
+            true,
+            true,
+            true
+        ));
+
+        // Files not in search paths should be filtered
+        assert!(should_be_filtered_out(
+            &config,
+            "/home/user/Pictures/photo.jpg",
+            true,
+            true,
+            true
+        ));
+        assert!(should_be_filtered_out(
+            &config,
+            "/tmp/tempfile",
+            true,
+            true,
+            true
+        ));
+        assert!(should_be_filtered_out(
+            &config,
+            "/usr/bin/ls",
+            true,
+            true,
+            true
+        ));
+    }
+
+    #[test]
+    fn test_should_be_filtered_out_exclude_paths() {
+        let config = FileSearchConfig {
+            search_paths: vec!["/home/user".to_string()],
+            exclude_paths: vec![
+                "/home/user/Trash".to_string(),
+                "/home/user/.cache".to_string(),
+            ],
+            file_types: vec![],
+            search_by: SearchBy::Name,
+        };
+
+        // Files in search paths but not excluded should not be filtered
+        assert!(!should_be_filtered_out(
+            &config,
+            "/home/user/Documents/file.txt",
+            true,
+            true,
+            true
+        ));
+        assert!(!should_be_filtered_out(
+            &config,
+            "/home/user/Downloads/image.jpg",
+            true,
+            true,
+            true
+        ));
+
+        // Files in excluded paths should be filtered
+        assert!(should_be_filtered_out(
+            &config,
+            "/home/user/Trash/deleted_file",
+            true,
+            true,
+            true
+        ));
+        assert!(should_be_filtered_out(
+            &config,
+            "/home/user/.cache/temp",
+            true,
+            true,
+            true
+        ));
+        assert!(should_be_filtered_out(
+            &config,
+            "/home/user/Trash/folder/file.txt",
+            true,
+            true,
+            true
+        ));
+    }
+
+    #[test]
+    fn test_should_be_filtered_out_file_types() {
+        let config = FileSearchConfig {
+            search_paths: vec!["/home/user/Documents".to_string()],
+            exclude_paths: vec![],
+            file_types: vec!["txt".to_string(), "md".to_string()],
+            search_by: SearchBy::Name,
+        };
+
+        // Files with allowed extensions should not be filtered
+        assert!(!should_be_filtered_out(
+            &config,
+            "/home/user/Documents/notes.txt",
+            true,
+            true,
+            true
+        ));
+        assert!(!should_be_filtered_out(
+            &config,
+            "/home/user/Documents/readme.md",
+            true,
+            true,
+            true
+        ));
+
+        // Files with disallowed extensions should be filtered
+        assert!(should_be_filtered_out(
+            &config,
+            "/home/user/Documents/image.jpg",
+            true,
+            true,
+            true
+        ));
+        assert!(should_be_filtered_out(
+            &config,
+            "/home/user/Documents/document.pdf",
+            true,
+            true,
+            true
+        ));
+
+        // Files without extensions should be filtered when file_types is not empty
+        assert!(should_be_filtered_out(
+            &config,
+            "/home/user/Documents/file",
+            true,
+            true,
+            true
+        ));
+        assert!(should_be_filtered_out(
+            &config,
+            "/home/user/Documents/folder",
+            true,
+            true,
+            true
+        ));
+    }
+
+    #[test]
+    fn test_should_be_filtered_out_empty_file_types() {
+        let config = FileSearchConfig {
+            search_paths: vec!["/home/user/Documents".to_string()],
+            exclude_paths: vec![],
+            file_types: vec![],
+            search_by: SearchBy::Name,
+        };
+
+        // When file_types is empty, all file types should be allowed
+        assert!(!should_be_filtered_out(
+            &config,
+            "/home/user/Documents/file.txt",
+            true,
+            true,
+            true
+        ));
+        assert!(!should_be_filtered_out(
+            &config,
+            "/home/user/Documents/image.jpg",
+            true,
+            true,
+            true
+        ));
+        assert!(!should_be_filtered_out(
+            &config,
+            "/home/user/Documents/document",
+            true,
+            true,
+            true
+        ));
+        assert!(!should_be_filtered_out(
+            &config,
+            "/home/user/Documents/folder/",
+            true,
+            true,
+            true
+        ));
+    }
+
+    #[test]
+    fn test_should_be_filtered_out_combined_filters() {
+        let config = FileSearchConfig {
+            search_paths: vec!["/home/user".to_string()],
+            exclude_paths: vec!["/home/user/Trash".to_string()],
+            file_types: vec!["txt".to_string()],
+            search_by: SearchBy::Name,
+        };
+
+        // Should pass all filters: in search path, not excluded, and correct file type
+        assert!(!should_be_filtered_out(
+            &config,
+            "/home/user/Documents/notes.txt",
+            true,
+            true,
+            true
+        ));
+
+        // Fails file type filter
+        assert!(should_be_filtered_out(
+            &config,
+            "/home/user/Documents/image.jpg",
+            true,
+            true,
+            true
+        ));
+
+        // Fails exclude path filter
+        assert!(should_be_filtered_out(
+            &config,
+            "/home/user/Trash/deleted.txt",
+            true,
+            true,
+            true
+        ));
+
+        // Fails search path filter
+        assert!(should_be_filtered_out(
+            &config,
+            "/tmp/temp.txt",
+            true,
+            true,
+            true
+        ));
+    }
+
+    #[test]
+    fn test_should_be_filtered_out_edge_cases() {
+        let config = FileSearchConfig {
+            search_paths: vec!["/home/user".to_string()],
+            exclude_paths: vec![],
+            file_types: vec!["txt".to_string()],
+            search_by: SearchBy::Name,
+        };
+
+        // Empty path
+        assert!(should_be_filtered_out(&config, "", true, true, true));
+
+        // Root path
+        assert!(should_be_filtered_out(&config, "/", true, true, true));
+
+        // Path that starts with search path but continues differently
+        assert!(!should_be_filtered_out(
+            &config,
+            "/home/user/document.txt",
+            true,
+            true,
+            true
+        ));
+        assert!(should_be_filtered_out(
+            &config,
+            "/home/user_other/file.txt",
+            true,
+            true,
+            true
+        ));
+    }
+}

src-tauri/src/extension/built_in/file_search/implementation/windows/crawl_scope_manager/mod.rs

@@ -0,0 +1,234 @@
+//! Wraps Windows `ISearchCrawlScopeManager`
+
+mod searchapi_h_bindings;
+
+use searchapi_h_bindings::CLSID_CSEARCH_MANAGER;
+use searchapi_h_bindings::IID_ISEARCH_MANAGER;
+use searchapi_h_bindings::{
+    HRESULT, ISearchCatalogManager, ISearchCatalogManagerVtbl, ISearchCrawlScopeManager,
+    ISearchCrawlScopeManagerVtbl, ISearchManager,
+};
+use std::ffi::OsStr;
+use std::ffi::OsString;
+use std::os::windows::ffi::OsStrExt;
+use std::path::Path;
+use std::path::PathBuf;
+use std::ptr::null_mut;
+use windows::core::w;
+use windows_sys::Win32::Foundation::S_OK;
+use windows_sys::Win32::System::Com::{
+    CLSCTX_LOCAL_SERVER, COINIT_APARTMENTTHREADED, CoCreateInstance, CoInitializeEx, CoUninitialize,
+};
+
+#[derive(Debug, thiserror::Error)]
+#[error("{msg}, function [{function}], HRESULT [{hresult}]")]
+pub(crate) struct WindowSearchApiError {
+    function: &'static str,
+    hresult: HRESULT,
+    msg: String,
+}
+
+/// See doc of [`Rule`].
+#[derive(Debug, PartialEq)]
+pub(crate) enum RuleMode {
+    Inclusion,
+    Exclusion,
+}
+
+/// A rule adds or removes one or more paths to/from the Windows Search index.
+#[derive(Debug)]
+pub(crate) struct Rule {
+    /// A path or path pattern (wildcard supported, only for exclusion rule) that
+    /// specifies the paths that this rule applies to.
+    ///
+    /// The rules used by Windows Search actually specify URLs rather than paths,
+    /// but we only care about paths, i.e., URLs with schema `file://`
+    pub(crate) paths: PathBuf,
+    /// Add or remove paths to/from the index.
+    pub(crate) mode: RuleMode,
+}
+
+/// A wrapper around Window's `ISearchCrawlScopeManager` type
+pub(crate) struct CrawlScopeManager {
+    i_search_crawl_scope_manager: *mut ISearchCrawlScopeManager,
+}
+
+impl CrawlScopeManager {
+    fn vtable(&self) -> *mut ISearchCrawlScopeManagerVtbl {
+        unsafe { (*self.i_search_crawl_scope_manager).lpVtbl }
+    }
+
+    pub(crate) fn new() -> Result<Self, WindowSearchApiError> {
+        unsafe {
+            // 1. Initialize the COM library, use Apartment-threading as Self is not Send/Sync
+            let hr = CoInitializeEx(null_mut(), COINIT_APARTMENTTHREADED as u32);
+            if hr != S_OK {
+                return Err(WindowSearchApiError {
+                    function: "CoInitializeEx()",
+                    hresult: hr,
+                    msg: "failed to initialize the COM library".into(),
+                });
+            }
+
+            // 2. Create an instance of the CSearchManager.
+            let mut search_manager: *mut ISearchManager = null_mut();
+            let hr = CoCreateInstance(
+                &CLSID_CSEARCH_MANAGER,                  // CLSID of the object
+                null_mut(),                              // No outer unknown
+                CLSCTX_LOCAL_SERVER,                     // Server context
+                &IID_ISEARCH_MANAGER,                    // IID of the interface we want
+                &mut search_manager as *mut _ as *mut _, // Pointer to receive the interface
+            );
+            if hr != S_OK {
+                return Err(WindowSearchApiError {
+                    function: "CoCreateInstance()",
+                    hresult: hr,
+                    msg: "failed to initialize ISearchManager".into(),
+                });
+            }
+            assert!(!search_manager.is_null());
+
+            let search_manger_vtable = (*search_manager).lpVtbl;
+            let search_manager_fn_get_catalog = (*search_manger_vtable).GetCatalog.unwrap();
+            let mut search_catalog_manager: *mut ISearchCatalogManager = null_mut();
+            let string_literal_system_index = w!("SystemIndex");
+            let hr: HRESULT = search_manager_fn_get_catalog(
+                search_manager,
+                string_literal_system_index.0,
+                &mut search_catalog_manager as *mut *mut ISearchCatalogManager,
+            );
+            if hr != S_OK {
+                return Err(WindowSearchApiError {
+                    function: "ISearchManager::GetCatalog()",
+                    hresult: hr,
+                    msg: "failed to initialize ISearchCatalogManager".into(),
+                });
+            }
+            assert!(!search_catalog_manager.is_null());
+
+            let search_catalog_manager_vtable: *mut ISearchCatalogManagerVtbl =
+                (*search_catalog_manager).lpVtbl;
+            let fn_get_crawl_scope_manager = (*search_catalog_manager_vtable)
+                .GetCrawlScopeManager
+                .unwrap();
+            let mut search_crawl_scope_manager: *mut ISearchCrawlScopeManager = null_mut();
+            let hr =
+                fn_get_crawl_scope_manager(search_catalog_manager, &mut search_crawl_scope_manager);
+            if hr != S_OK {
+                return Err(WindowSearchApiError {
+                    function: "ISearchCatalogManager::GetCrawlScopeManager()",
+                    hresult: hr,
+                    msg: "failed to initialize ISearchCrawlScopeManager".into(),
+                });
+            }
+            assert!(!search_crawl_scope_manager.is_null());
+
+            Ok(Self {
+                i_search_crawl_scope_manager: search_crawl_scope_manager,
+            })
+        }
+    }
+
+    /// Does nothing unless you [`commit()`] the changes.
+    pub(crate) fn add_rule(&mut self, rule: Rule) -> Result<(), WindowSearchApiError> {
+        unsafe {
+            let vtable = self.vtable();
+
+            let fn_add_rule = (*vtable).AddUserScopeRule.unwrap();
+
+            let url: Vec<u16> = encode_path(&rule.paths);
+            let inclusion = (rule.mode == RuleMode::Inclusion) as i32;
+            let override_child_rules = true as i32;
+            let follow_flag = 0x1_u32; /* FF_INDEXCOMPLEXURLS */
+
+            let hr = fn_add_rule(
+                self.i_search_crawl_scope_manager,
+                url.as_ptr(),
+                inclusion,
+                override_child_rules,
+                follow_flag,
+            );
+
+            if hr != S_OK {
+                return Err(WindowSearchApiError {
+                    function: "ISearchCrawlScopeManager::AddUserScopeRule()",
+                    hresult: hr,
+                    msg: "failed to add scope rule".into(),
+                });
+            }
+
+            Ok(())
+        }
+    }
+
+    pub(crate) fn is_path_included<P: AsRef<Path> + ?Sized>(
+        &self,
+        path: &P,
+    ) -> Result<bool, WindowSearchApiError> {
+        unsafe {
+            let vtable = self.vtable();
+            let fn_included_in_crawl_scope = (*vtable).IncludedInCrawlScope.unwrap();
+            let path: Vec<u16> = encode_path(path);
+
+            let mut included: i32 = 0 /* false */;
+
+            let hr = fn_included_in_crawl_scope(
+                self.i_search_crawl_scope_manager,
+                path.as_ptr(),
+                &mut included,
+            );
+            if hr != S_OK {
+                return Err(WindowSearchApiError {
+                    function: "ISearchCrawlScopeManager::IncludedInCrawlScope()",
+                    hresult: hr,
+                    msg: "failed to call IncludedInCrawlScope()".into(),
+                });
+            }
+
+            Ok(included == 1)
+        }
+    }
+
+    pub(crate) fn commit(&self) -> Result<(), WindowSearchApiError> {
+        unsafe {
+            let vtable = self.vtable();
+            let fn_commit = (*vtable).SaveAll.unwrap();
+            let hr = fn_commit(self.i_search_crawl_scope_manager);
+            if hr != S_OK {
+                return Err(WindowSearchApiError {
+                    function: "ISearchCrawlScopeManager::SaveAll()",
+                    hresult: hr,
+                    msg: "failed to commit the changes".into(),
+                });
+            }
+
+            Ok(())
+        }
+    }
+}
+
+impl Drop for CrawlScopeManager {
+    fn drop(&mut self) {
+        unsafe {
+            CoUninitialize();
+        }
+    }
+}
+
+fn encode_path<P: AsRef<Path> + ?Sized>(path: &P) -> Vec<u16> {
+    let mut buffer = OsString::new();
+
+    // schema
+    buffer.push("file:///");
+    buffer.push(path.as_ref().as_os_str());
+
+    osstr_to_wstr(&buffer)
+}
+
+fn osstr_to_wstr<S: AsRef<OsStr> + ?Sized>(str: &S) -> Vec<u16> {
+    let os_str: &OsStr = str.as_ref();
+    let mut chars = os_str.encode_wide().collect::<Vec<u16>>();
+    chars.push(0 /* NUL */);
+
+    chars
+}

src-tauri/src/extension/built_in/file_search/implementation/windows/crawl_scope_manager/searchapi_h_bindings.rs

@@ -0,0 +1,30 @@
+//! Rust binding of the types and functions declared in 'searchapi.h'
+
+#![allow(unused)]
+#![allow(non_camel_case_types)]
+#![allow(non_snake_case)]
+#![allow(non_upper_case_globals)]
+#![allow(unsafe_op_in_unsafe_fn)]
+#![allow(unnecessary_transmutes)]
+
+include!(concat!(env!("OUT_DIR"), "/searchapi_bindings.rs"));
+
+// The bindings.rs contains a GUID type as well, we use the one provided by
+// the windows_sys crate here.
+use windows_sys::core::GUID as WIN_SYS_GUID;
+
+// https://github.com/search?q=CLSID_CSearchManager+language%3AC&type=code&l=C
+pub(crate) static CLSID_CSEARCH_MANAGER: WIN_SYS_GUID = WIN_SYS_GUID {
+    data1: 0x7d096c5f,
+    data2: 0xac08,
+    data3: 0x4f1f,
+    data4: [0xbe, 0xb7, 0x5c, 0x22, 0xc5, 0x17, 0xce, 0x39],
+};
+
+// https://github.com/search?q=IID_ISearchManager+language%3AC&type=code
+pub(crate) static IID_ISEARCH_MANAGER: WIN_SYS_GUID = WIN_SYS_GUID {
+    data1: 0xAB310581,
+    data2: 0xac80,
+    data3: 0x11d1,
+    data4: [0x8d, 0xf3, 0x00, 0xc0, 0x4f, 0xb6, 0xef, 0x69],
+};

src-tauri/src/extension/built_in/file_search/implementation/windows/mod.rs

@@ -3,13 +3,17 @@
 //! https://github.com/IRONAGE-Park/rag-sample/blob/3f0ad8c8012026cd3a7e453d08f041609426cb91/src/native/windows.rs
 //! is the starting point of this implementation.
 
+mod crawl_scope_manager;
+
 use super::super::EXTENSION_ID;
 use super::super::config::FileSearchConfig;
 use super::super::config::SearchBy;
 use crate::common::document::{DataSourceReference, Document};
 use crate::extension::LOCAL_QUERY_SOURCE_TYPE;
 use crate::extension::OnOpened;
-use crate::util::file::get_file_icon;
+use crate::util::file::sync_get_file_icon;
+use std::borrow::Borrow;
+use std::path::PathBuf;
 use windows::{
     Win32::System::{
         Com::{CLSCTX_INPROC_SERVER, CoCreateInstance},
@@ -420,7 +424,7 @@ pub(crate) async fn hits(
         // "file:C:/Users/desktop.ini" => "C:/Users/desktop.ini"
         let file_path = &item_url[ITEM_URL_PREFIX_LEN..];
 
-        let icon = get_file_icon(file_path.to_string()).await;
+        let icon = sync_get_file_icon(file_path);
         let file_path_of_type_path = camino::Utf8Path::new(&file_path);
         let r#where = file_path_of_type_path
             .parent()
@@ -468,6 +472,85 @@ pub(crate) async fn hits(
     Ok(hits)
 }
 
+pub(crate) fn apply_config(config: &FileSearchConfig) -> Result<(), String> {
+    // To ensure Windows Search indexer index the paths we specified in the
+    // config, we will:
+    //
+    // 1. Add an inclusion rule for every search path to ensure indexer index
+    //    them
+    // 2. For the exclude paths, we exclude them from the crawl scope if they
+    //    were not included in the scope before we update the scope. Otherwise,
+    //    we cannot exclude them as doing that could potentially break other
+    //    apps (by removing the indexes they rely on).
+    //
+    // Windows APIs are pretty smart. They won't blindly add an inclusion rule if
+    // the path you are trying to include is already included. The same applies
+    // to exclusion rules as well. Since Windows APIs handle these checks for us,
+    // we don't need to worry about them.
+
+    use crawl_scope_manager::CrawlScopeManager;
+    use crawl_scope_manager::Rule;
+    use crawl_scope_manager::RuleMode;
+    use std::borrow::Cow;
+
+    /// Windows APIs need the path to contain a tailing '\'
+    fn add_tailing_backslash(path: &str) -> Cow<'_, str> {
+        if path.ends_with(r#"\"#) {
+            Cow::Borrowed(path)
+        } else {
+            let mut owned = path.to_string();
+            owned.push_str(r#"\"#);
+
+            Cow::Owned(owned)
+        }
+    }
+
+    let mut manager = CrawlScopeManager::new().map_err(|e| e.to_string())?;
+
+    let search_paths = &config.search_paths;
+    let exclude_paths = &config.exclude_paths;
+
+    // indexes to `exclude_paths` of the paths we need to exclude
+    let mut paths_to_exclude: Vec<usize> = Vec::new();
+    for (idx, exclude_path) in exclude_paths.into_iter().enumerate() {
+        let exclude_path = add_tailing_backslash(&exclude_path);
+        let exclude_path: &str = exclude_path.borrow();
+
+        if !manager
+            .is_path_included(exclude_path)
+            .map_err(|e| e.to_string())?
+        {
+            paths_to_exclude.push(idx);
+        }
+    }
+
+    for search_path in search_paths {
+        let inclusion_rule = Rule {
+            paths: PathBuf::from(add_tailing_backslash(&search_path).into_owned()),
+            mode: RuleMode::Inclusion,
+        };
+
+        manager
+            .add_rule(inclusion_rule)
+            .map_err(|e| e.to_string())?;
+    }
+
+    for idx in paths_to_exclude {
+        let exclusion_rule = Rule {
+            paths: PathBuf::from(add_tailing_backslash(&exclude_paths[idx]).into_owned()),
+            mode: RuleMode::Exclusion,
+        };
+
+        manager
+            .add_rule(exclusion_rule)
+            .map_err(|e| e.to_string())?;
+    }
+
+    manager.commit().map_err(|e| e.to_string())?;
+
+    Ok(())
+}
+
 // Skip these tests in our CI, they fail with the following error
 // "SQL is invalid: "0x80041820""
 //

src-tauri/src/extension/built_in/file_search/mod.rs

@@ -19,7 +19,7 @@ pub(crate) const PLUGIN_JSON_FILE: &str = r#"
 {
   "id": "File Search",
   "name": "File Search",
-  "platforms": ["macos", "windows"],
+  "platforms": ["macos", "windows", "linux"],
   "description": "Search files on your system",
   "icon": "font_Filesearch",
   "type": "extension"

src-tauri/src/extension/built_in/mod.rs

@@ -3,10 +3,11 @@
 pub mod ai_overview;
 pub mod application;
 pub mod calculator;
-#[cfg(any(target_os = "macos", target_os = "windows"))]
 pub mod file_search;
 pub mod pizza_engine_runtime;
 pub mod quick_ai_access;
+#[cfg(target_os = "macos")]
+pub mod window_management;
 
 use super::Extension;
 use crate::SearchSourceRegistry;
@@ -15,6 +16,8 @@ use crate::extension::{
     ExtensionBundleIdBorrowed, PLUGIN_JSON_FILE_NAME, alter_extension_json_file,
 };
 use anyhow::Context;
+use file_search::config::FileSearchConfig;
+use file_search::implementation::apply_config as file_search_apply_config;
 use std::path::{Path, PathBuf};
 use tauri::{AppHandle, Manager};
 
@@ -173,17 +176,26 @@ pub(crate) async fn list_built_in_extensions(
         .await?,
     );
 
+    built_in_extensions.push(
+        load_built_in_extension(
+            &dir,
+            file_search::EXTENSION_ID,
+            file_search::PLUGIN_JSON_FILE,
+        )
+        .await?,
+    );
+
     cfg_if::cfg_if! {
-        if #[cfg(any(target_os = "macos", target_os = "windows"))] {
-            built_in_extensions.push(
-                load_built_in_extension(
-                    &dir,
-                    file_search::EXTENSION_ID,
-                    file_search::PLUGIN_JSON_FILE,
-                )
-                .await?,
-            );
-        }
+      if #[cfg(target_os = "macos")] {
+          built_in_extensions.push(
+              load_built_in_extension(
+                  &dir,
+                  window_management::EXTENSION_ID,
+                  window_management::PLUGIN_JSON_FILE,
+              )
+              .await?,
+          );
+      }
     }
 
     Ok(built_in_extensions)
@@ -212,16 +224,28 @@ pub(super) async fn init_built_in_extension(
         log::debug!("built-in extension [{}] initialized", extension.id);
     }
 
+    if extension.id == file_search::EXTENSION_ID {
+        let file_system_search = file_search::FileSearchExtensionSearchSource;
+        search_source_registry
+            .register_source(file_system_search)
+            .await;
+        let file_search_config = FileSearchConfig::get(tauri_app_handle);
+        file_search_apply_config(&file_search_config)?;
+        log::debug!("built-in extension [{}] initialized", extension.id);
+    }
+
     cfg_if::cfg_if! {
-        if #[cfg(any(target_os = "macos", target_os = "windows"))] {
-            if extension.id == file_search::EXTENSION_ID {
-                let file_system_search = file_search::FileSearchExtensionSearchSource;
-                search_source_registry
-                    .register_source(file_system_search)
-                    .await;
-                log::debug!("built-in extension [{}] initialized", extension.id);
-            }
-        }
+      if #[cfg(target_os = "macos")] {
+          if extension.id == window_management::EXTENSION_ID {
+              let file_system_search = window_management::search_source::WindowManagementSearchSource;
+              search_source_registry
+                  .register_source(file_system_search)
+                  .await;
+
+              window_management::set_up_commands_hotkeys(tauri_app_handle, extension)?;
+              log::debug!("built-in extension [{}] initialized", extension.id);
+          }
+      }
     }
 
     Ok(())
@@ -299,19 +323,51 @@ pub(crate) async fn enable_built_in_extension(
         return Ok(());
     }
 
+    if bundle_id.extension_id == file_search::EXTENSION_ID {
+        let file_system_search = file_search::FileSearchExtensionSearchSource;
+        search_source_registry_tauri_state
+            .register_source(file_system_search)
+            .await;
+        alter_extension_json_file(
+            &get_built_in_extension_directory(tauri_app_handle),
+            bundle_id,
+            update_extension,
+        )?;
+        let file_search_config = FileSearchConfig::get(tauri_app_handle);
+        file_search_apply_config(&file_search_config)?;
+        return Ok(());
+    }
+
     cfg_if::cfg_if! {
-        if #[cfg(any(target_os = "macos", target_os = "windows"))] {
-            if bundle_id.extension_id == file_search::EXTENSION_ID {
-            let file_system_search = file_search::FileSearchExtensionSearchSource;
-            search_source_registry_tauri_state
-                .register_source(file_system_search)
-                .await;
-            alter_extension_json_file(
-                &get_built_in_extension_directory(tauri_app_handle),
-                bundle_id,
-                update_extension,
-            )?;
-            return Ok(());
+        if #[cfg(target_os = "macos")] {
+            if bundle_id.extension_id == window_management::EXTENSION_ID
+                && bundle_id.sub_extension_id.is_none()
+            {
+                let built_in_extension_dir = get_built_in_extension_directory(tauri_app_handle);
+
+                let file_system_search = window_management::search_source::WindowManagementSearchSource;
+                search_source_registry_tauri_state
+                    .register_source(file_system_search)
+                    .await;
+
+                let extension =
+                    load_extension_from_json_file(&built_in_extension_dir, bundle_id.extension_id)?;
+                window_management::set_up_commands_hotkeys(tauri_app_handle, &extension)?;
+
+                alter_extension_json_file(&built_in_extension_dir, bundle_id, update_extension)?;
+
+                return Ok(());
+            }
+
+            if bundle_id.extension_id == window_management::EXTENSION_ID {
+                if let Some(command_id) = bundle_id.sub_extension_id {
+                    let built_in_extension_dir = get_built_in_extension_directory(tauri_app_handle);
+                    alter_extension_json_file(&built_in_extension_dir, bundle_id, update_extension)?;
+
+                    let extension =
+                        load_extension_from_json_file(&built_in_extension_dir, bundle_id.extension_id)?;
+                    window_management::set_up_command_hotkey(tauri_app_handle, &extension, command_id)?;
+                }
             }
         }
     }
@@ -387,18 +443,44 @@ pub(crate) async fn disable_built_in_extension(
         return Ok(());
     }
 
+    if bundle_id.extension_id == file_search::EXTENSION_ID {
+        search_source_registry_tauri_state
+            .remove_source(bundle_id.extension_id)
+            .await;
+        alter_extension_json_file(
+            &get_built_in_extension_directory(tauri_app_handle),
+            bundle_id,
+            update_extension,
+        )?;
+        return Ok(());
+    }
+
     cfg_if::cfg_if! {
-        if #[cfg(any(target_os = "macos", target_os = "windows"))] {
-            if bundle_id.extension_id == file_search::EXTENSION_ID {
+        if #[cfg(target_os = "macos")] {
+            if bundle_id.extension_id == window_management::EXTENSION_ID
+                && bundle_id.sub_extension_id.is_none()
+            {
+                let built_in_extension_dir = get_built_in_extension_directory(tauri_app_handle);
+
                 search_source_registry_tauri_state
                     .remove_source(bundle_id.extension_id)
                     .await;
-                alter_extension_json_file(
-                    &get_built_in_extension_directory(tauri_app_handle),
-                    bundle_id,
-                    update_extension,
-                )?;
-                return Ok(());
+                alter_extension_json_file(&built_in_extension_dir, bundle_id, update_extension)?;
+
+                let extension =
+                    load_extension_from_json_file(&built_in_extension_dir, bundle_id.extension_id)?;
+                window_management::unset_commands_hotkeys(tauri_app_handle, &extension)?;
+            }
+
+            if bundle_id.extension_id == window_management::EXTENSION_ID {
+                if let Some(command_id) = bundle_id.sub_extension_id {
+                    let built_in_extension_dir = get_built_in_extension_directory(tauri_app_handle);
+                    alter_extension_json_file(&built_in_extension_dir, bundle_id, update_extension)?;
+
+                    let extension =
+                        load_extension_from_json_file(&built_in_extension_dir, bundle_id.extension_id)?;
+                    window_management::unset_command_hotkey(tauri_app_handle, &extension, command_id)?;
+                }
             }
         }
     }
@@ -410,12 +492,32 @@ pub(crate) fn set_built_in_extension_alias(
     tauri_app_handle: &AppHandle,
     bundle_id: &ExtensionBundleIdBorrowed<'_>,
     alias: &str,
-) {
+) -> Result<(), String> {
     if bundle_id.extension_id == application::QUERYSOURCE_ID_DATASOURCE_ID_DATASOURCE_NAME {
         if let Some(app_path) = bundle_id.sub_extension_id {
             application::set_app_alias(tauri_app_handle, app_path, alias);
         }
     }
+
+    cfg_if::cfg_if! {
+        if #[cfg(target_os = "macos")] {
+            if bundle_id.extension_id == window_management::EXTENSION_ID
+                && bundle_id.sub_extension_id.is_some()
+            {
+                let update_function = |ext: &mut Extension| {
+                    ext.alias = Some(alias.to_string());
+                    Ok(())
+                };
+                alter_extension_json_file(
+                    &get_built_in_extension_directory(tauri_app_handle),
+                    bundle_id,
+                    update_function,
+                )?;
+            }
+        }
+    }
+
+    Ok(())
 }
 
 pub(crate) fn register_built_in_extension_hotkey(
@@ -428,6 +530,29 @@ pub(crate) fn register_built_in_extension_hotkey(
             application::register_app_hotkey(&tauri_app_handle, app_path, hotkey)?;
         }
     }
+
+    cfg_if::cfg_if! {
+        if #[cfg(target_os = "macos")] {
+            let update_function = |ext: &mut Extension| {
+                ext.hotkey = Some(hotkey.into());
+
+                Ok(())
+            };
+
+            if bundle_id.extension_id == window_management::EXTENSION_ID {
+                if let Some(command_id) = bundle_id.sub_extension_id {
+                    alter_extension_json_file(
+                        &get_built_in_extension_directory(tauri_app_handle),
+                        bundle_id,
+                        update_function,
+                    )?;
+
+                    window_management::register_command_hotkey(tauri_app_handle, command_id, hotkey)?;
+                }
+            }
+        }
+    }
+
     Ok(())
 }
 
@@ -440,6 +565,35 @@ pub(crate) fn unregister_built_in_extension_hotkey(
             application::unregister_app_hotkey(&tauri_app_handle, app_path)?;
         }
     }
+
+    cfg_if::cfg_if! {
+        if #[cfg(target_os = "macos")] {
+            let update_function = |ext: &mut Extension| {
+                ext.hotkey = None;
+
+                Ok(())
+            };
+
+            if bundle_id.extension_id == window_management::EXTENSION_ID {
+                if let Some(command_id) = bundle_id.sub_extension_id {
+
+                    let extension = load_extension_from_json_file(
+                        &get_built_in_extension_directory(tauri_app_handle),
+                        bundle_id.extension_id,
+                    )
+                    .unwrap();
+                    window_management::unregister_command_hotkey(tauri_app_handle, &extension, command_id)?;
+                    alter_extension_json_file(
+                        &get_built_in_extension_directory(tauri_app_handle),
+                        bundle_id,
+                        update_function,
+                    )
+                    .unwrap();
+                }
+            }
+        }
+    }
+
     Ok(())
 }
 
@@ -479,6 +633,8 @@ fn load_extension_from_json_file(
     Ok(extension)
 }
 
+#[allow(unused_macros)] // #[function_name::named] only used on macOS
+#[function_name::named]
 pub(crate) async fn is_built_in_extension_enabled(
     tauri_app_handle: &AppHandle,
     bundle_id: &ExtensionBundleIdBorrowed<'_>,
@@ -524,9 +680,17 @@ pub(crate) async fn is_built_in_extension_enabled(
         return Ok(extension.enabled);
     }
 
+    if bundle_id.extension_id == file_search::EXTENSION_ID && bundle_id.sub_extension_id.is_none() {
+        return Ok(search_source_registry_tauri_state
+            .get_source(bundle_id.extension_id)
+            .await
+            .is_some());
+    }
+
     cfg_if::cfg_if! {
-        if #[cfg(any(target_os = "macos", target_os = "windows"))] {
-            if bundle_id.extension_id == file_search::EXTENSION_ID
+        if #[cfg(target_os = "macos")] {
+            // Window Management
+            if bundle_id.extension_id == window_management::EXTENSION_ID
                 && bundle_id.sub_extension_id.is_none()
             {
                 return Ok(search_source_registry_tauri_state
@@ -534,6 +698,25 @@ pub(crate) async fn is_built_in_extension_enabled(
                     .await
                     .is_some());
             }
+
+            // Window Management commands
+            if bundle_id.extension_id == window_management::EXTENSION_ID
+                && let Some(command_id) = bundle_id.sub_extension_id
+            {
+                let extension = load_extension_from_json_file(
+                    &get_built_in_extension_directory(tauri_app_handle),
+                    bundle_id.extension_id,
+                )?;
+                let commands = extension
+                    .commands
+                    .expect("window management extension has commands");
+
+                let extension = commands.iter().find( |cmd| cmd.id == command_id).unwrap_or_else(|| {
+                    panic!("function [{}()] invoked with a Window Management command that does not exist, extension ID [{}] ", function_name!(), command_id)
+                });
+
+                return Ok(extension.enabled);
+            }
         }
     }
 

src-tauri/src/extension/built_in/window_management/actions.rs

@@ -0,0 +1,134 @@
+#[derive(Debug, Clone, PartialEq, Copy, Hash, serde::Serialize, serde::Deserialize)]
+pub enum Action {
+    /// Move the window to fill left half of the screen.
+    TopHalf,
+    /// Move the window to fill bottom half of the screen.
+    BottomHalf,
+    /// Move the window to fill left half of the screen.
+    LeftHalf,
+    /// Move the window to fill right half of the screen.
+    RightHalf,
+    /// Move the window to fill center half of the screen.
+    CenterHalf,
+
+    /// Resize window to the top left quarter of the screen.
+    TopLeftQuarter,
+    /// Resize window to the top right quarter of the screen.
+    TopRightQuarter,
+    /// Resize window to the bottom left quarter of the screen.
+    BottomLeftQuarter,
+    /// Resize window to the bottom right quarter of the screen.
+    BottomRightQuarter,
+
+    /// Resize window to the top left sixth of the screen.
+    TopLeftSixth,
+    /// Resize window to the top center sixth of the screen.
+    TopCenterSixth,
+    /// Resize window to the top right sixth of the screen.
+    TopRightSixth,
+    /// Resize window to the bottom left sixth of the screen.
+    BottomLeftSixth,
+    /// Resize window to the bottom center sixth of the screen.
+    BottomCenterSixth,
+    /// Resize window to the bottom right sixth of the screen.
+    BottomRightSixth,
+
+    /// Resize window to the top third of the screen.
+    TopThird,
+    /// Resize window to the middle third of the screen.
+    MiddleThird,
+    /// Resize window to the bottom third of the screen.
+    BottomThird,
+
+    /// Center window in the screen.
+    Center,
+
+    /// Resize window to the first fourth of the screen.
+    FirstFourth,
+    /// Resize window to the second fourth of the screen.
+    SecondFourth,
+    /// Resize window to the third fourth of the screen.
+    ThirdFourth,
+    /// Resize window to the last fourth of the screen.
+    LastFourth,
+
+    /// Resize window to the first third of the screen.
+    FirstThird,
+    /// Resize window to the center third of the screen.
+    CenterThird,
+    /// Resize window to the last third of the screen.
+    LastThird,
+
+    /// Resize window to the first two thirds of the screen.
+    FirstTwoThirds,
+    /// Resize window to the center two thirds of the screen.
+    CenterTwoThirds,
+    /// Resize window to the last two thirds of the screen.
+    LastTwoThirds,
+
+    /// Resize window to the first three fourths of the screen.
+    FirstThreeFourths,
+    /// Resize window to the center three fourths of the screen.
+    CenterThreeFourths,
+    /// Resize window to the last three fourths of the screen.
+    LastThreeFourths,
+
+    /// Resize window to the top three fourths of the screen.
+    TopThreeFourths,
+    /// Resize window to the bottom three fourths of the screen.
+    BottomThreeFourths,
+
+    /// Resize window to the top two thirds of the screen.
+    TopTwoThirds,
+    /// Resize window to the bottom two thirds of the screen.
+    BottomTwoThirds,
+    /// Resize window to the top center two thirds of the screen.
+    TopCenterTwoThirds,
+
+    /// Resize window to the top first fourth of the screen.
+    TopFirstFourth,
+    /// Resize window to the top second fourth of the screen.
+    TopSecondFourth,
+    /// Resize window to the top third fourth of the screen.
+    TopThirdFourth,
+    /// Resize window to the top last fourth of the screen.
+    TopLastFourth,
+
+    /// Increase the window until it reaches the screen size.
+    MakeLarger,
+    /// Decrease the window until it reaches its minimal size.
+    MakeSmaller,
+
+    /// Maximize window to almost fit the screen.
+    AlmostMaximize,
+    /// Maximize window to fit the screen.
+    Maximize,
+    /// Maximize width of window to fit the screen.
+    MaximizeWidth,
+    /// Maximize height of window to fit the screen.
+    MaximizeHeight,
+
+    /// Move window to the top edge of the screen.
+    MoveUp,
+    /// Move window to the bottom of the screen.
+    MoveDown,
+    /// Move window to the left edge of the screen.
+    MoveLeft,
+    /// Move window to the right edge of the screen.
+    MoveRight,
+
+    /// Move window to the next desktop.
+    NextDesktop,
+    /// Move window to the previous desktop.
+    PreviousDesktop,
+    /// Move window to the next display.
+    NextDisplay,
+    /// Move window to the previous display.
+    PreviousDisplay,
+
+    /// Restore window to its last position.
+    Restore,
+
+    /// Toggle fullscreen mode.
+    ToggleFullscreen,
+}

src-tauri/src/extension/built_in/window_management/backend/mod.rs

@@ -0,0 +1,796 @@
+//! This module calls macOS APIs to implement various helper functions needed by
+//! to perform the defined actions.
+
+mod private;
+
+use std::ffi::c_uint;
+use std::ffi::c_ushort;
+use std::ffi::c_void;
+use std::ops::Deref;
+use std::ptr::NonNull;
+use std::time::Duration;
+
+use objc2::MainThreadMarker;
+use objc2_app_kit::NSEvent;
+use objc2_app_kit::NSScreen;
+use objc2_app_kit::NSWorkspace;
+use objc2_application_services::AXError;
+use objc2_application_services::AXUIElement;
+use objc2_application_services::AXValue;
+use objc2_application_services::AXValueType;
+use objc2_core_foundation::CFBoolean;
+use objc2_core_foundation::CFRetained;
+use objc2_core_foundation::CFString;
+use objc2_core_foundation::CFType;
+use objc2_core_foundation::CGPoint;
+use objc2_core_foundation::CGRect;
+use objc2_core_foundation::CGSize;
+use objc2_core_foundation::Type;
+use objc2_core_foundation::{CFArray, CFDictionary, CFNumber};
+use objc2_core_graphics::CGError;
+use objc2_core_graphics::CGEvent;
+use objc2_core_graphics::CGEventFlags;
+use objc2_core_graphics::CGEventTapLocation;
+use objc2_core_graphics::CGEventType;
+use objc2_core_graphics::CGMouseButton;
+use objc2_core_graphics::CGRectGetMidX;
+use objc2_core_graphics::CGRectGetMinY;
+use objc2_core_graphics::CGRectIntersectsRect;
+use objc2_core_graphics::CGWindowID;
+
+use super::error::Error;
+
+use private::CGSCopyManagedDisplaySpaces;
+use private::CGSGetActiveSpace;
+use private::CGSMainConnectionID;
+use private::CGSSpaceID;
+use std::collections::HashMap;
+use std::sync::{LazyLock, Mutex};
+
+fn intersects(r1: CGRect, r2: CGRect) -> bool {
+    unsafe { CGRectIntersectsRect(r1, r2) }
+}
+
+/// Core graphics APIs use flipped coordinate system, while AppKit uses the
+/// unflippled version, they differ in the y-axis.  We need to do the conversion
+/// (to `CGPoint.y`) manually.
+fn flip_frame_y(main_screen_height: f64, frame_height: f64, frame_unflipped_y: f64) -> f64 {
+    main_screen_height - (frame_unflipped_y + frame_height)
+}
+
+/// Helper function to extract an UI element's origin.
+fn get_ui_element_origin(ui_element: &CFRetained<AXUIElement>) -> Result<CGPoint, Error> {
+    let mut position_value: *const CFType = std::ptr::null();
+    let ptr_to_position_value = NonNull::new(&mut position_value).unwrap();
+    let position_attr = CFString::from_static_str("AXPosition");
+    let error = unsafe { ui_element.copy_attribute_value(&position_attr, ptr_to_position_value) };
+
+    if error != AXError::Success {
+        return Err(Error::AXError(error));
+    }
+    assert!(!position_value.is_null());
+
+    let position: CFRetained<AXValue> =
+        unsafe { CFRetained::from_raw(NonNull::new(position_value.cast_mut().cast()).unwrap()) };
+
+    let mut position_cg_point = CGPoint::ZERO;
+    let ptr_to_position_cg_point =
+        NonNull::new((&mut position_cg_point as *mut CGPoint).cast()).unwrap();
+
+    let result = unsafe { position.value(AXValueType::CGPoint, ptr_to_position_cg_point) };
+    assert!(result, "type mismatched");
+
+    Ok(position_cg_point)
+}
+
+/// Send a set origin request to the `ui_element`, return once request is sent.
+fn set_ui_element_origin_oneshot(
+    ui_element: &CFRetained<AXUIElement>,
+    mut origin: CGPoint,
+) -> Result<(), Error> {
+    let ptr_to_origin = NonNull::new((&mut origin as *mut CGPoint).cast::<c_void>()).unwrap();
+    let pos_value = unsafe { AXValue::new(AXValueType::CGPoint, ptr_to_origin) }.unwrap();
+    let pos_attr = CFString::from_static_str("AXPosition");
+
+    let error = unsafe { ui_element.set_attribute_value(&pos_attr, pos_value.deref()) };
+    if error != AXError::Success {
+        return Err(Error::AXError(error));
+    }
+
+    Ok(())
+}
+
+/// Helper function to extract an UI element's size.
+fn get_ui_element_size(ui_element: &CFRetained<AXUIElement>) -> Result<CGSize, Error> {
+    let mut size_value: *const CFType = std::ptr::null();
+    let ptr_to_size_value = NonNull::new(&mut size_value).unwrap();
+    let size_attr = CFString::from_static_str("AXSize");
+    let error = unsafe { ui_element.copy_attribute_value(&size_attr, ptr_to_size_value) };
+
+    if error != AXError::Success {
+        return Err(Error::AXError(error));
+    }
+    assert!(!size_value.is_null());
+
+    let size: CFRetained<AXValue> =
+        unsafe { CFRetained::from_raw(NonNull::new(size_value.cast_mut().cast()).unwrap()) };
+
+    let mut size_cg_size = CGSize::ZERO;
+    let ptr_to_size_cg_size = NonNull::new((&mut size_cg_size as *mut CGSize).cast()).unwrap();
+
+    let result = unsafe { size.value(AXValueType::CGSize, ptr_to_size_cg_size) };
+    assert!(result, "type mismatched");
+
+    Ok(size_cg_size)
+}
+
+/// Send a set size request to the `ui_element`, return once request is sent.
+fn set_ui_element_size_oneshot(
+    ui_element: &CFRetained<AXUIElement>,
+    mut size: CGSize,
+) -> Result<(), Error> {
+    let ptr_to_size = NonNull::new((&mut size as *mut CGSize).cast::<c_void>()).unwrap();
+    let size_value = unsafe { AXValue::new(AXValueType::CGSize, ptr_to_size) }.unwrap();
+    let size_attr = CFString::from_static_str("AXSize");
+
+    let error = unsafe { ui_element.set_attribute_value(&size_attr, size_value.deref()) };
+    if error != AXError::Success {
+        return Err(Error::AXError(error));
+    }
+
+    Ok(())
+}
+
+/// Get the frontmost/focused window (as an UI element).
+fn get_frontmost_window() -> Result<CFRetained<AXUIElement>, Error> {
+    let workspace = unsafe { NSWorkspace::sharedWorkspace() };
+    let frontmost_app =
+        unsafe { workspace.frontmostApplication() }.ok_or(Error::CannotFindFocusWindow)?;
+
+    let pid = unsafe { frontmost_app.processIdentifier() };
+
+    let app_element = unsafe { AXUIElement::new_application(pid) };
+
+    let mut window_element: *const CFType = std::ptr::null();
+    let ptr_to_window_element = NonNull::new(&mut window_element).unwrap();
+    let focused_window_attr = CFString::from_static_str("AXFocusedWindow");
+
+    let error =
+        unsafe { app_element.copy_attribute_value(&focused_window_attr, ptr_to_window_element) };
+
+    if error != AXError::Success {
+        return Err(Error::AXError(error));
+    }
+    assert!(!window_element.is_null());
+
+    let window_element: *mut AXUIElement = window_element.cast::<AXUIElement>().cast_mut();
+
+    let window = unsafe { CFRetained::from_raw(NonNull::new(window_element).unwrap()) };
+
+    Ok(window)
+}
+
+/// Get the CGWindowID of the frontmost/focused window.
+#[allow(unused)] // In case we need it in the future
+pub(crate) fn get_frontmost_window_id() -> Result<CGWindowID, Error> {
+    let element = get_frontmost_window()?;
+    let ptr: NonNull<AXUIElement> = CFRetained::as_ptr(&element);
+
+    let mut window_id_buffer: CGWindowID = 0;
+    let error =
+        unsafe { private::_AXUIElementGetWindow(ptr.as_ptr(), &mut window_id_buffer as *mut _) };
+    if error != AXError::Success {
+        return Err(Error::AXError(error));
+    }
+
+    Ok(window_id_buffer)
+}
+
+/// Returns the workspace ID list grouped by display.  For example, suppose you
+/// have 2 displays and 10 workspaces (5 workspaces per display), then this
+/// function might return something like:
+///
+/// ```text
+/// [
+///   [8, 11, 12, 13, 24],
+///   [519, 77, 15, 249, 414]
+/// ]
+/// ```
+///
+/// Even though this function return macOS internal space IDs, they should correspond
+/// to the logical workspace that users are familiar with.  The display that contains
+/// workspaces `[8, 11, 12, 13, 24]` should be your main display; workspace 8 represents
+/// Desktop 1, and workspace 414 represents Desktop 10.
+fn workspace_ids_grouped_by_display() -> Vec<Vec<CGSSpaceID>> {
+    unsafe {
+        let mut ret = Vec::new();
+        let conn = CGSMainConnectionID();
+
+        let display_spaces_raw = CGSCopyManagedDisplaySpaces(conn);
+        let display_spaces: CFRetained<CFArray> =
+            CFRetained::from_raw(NonNull::new(display_spaces_raw).unwrap());
+
+        let key_spaces: CFRetained<CFString> = CFString::from_static_str("Spaces");
+        let key_spaces_ptr: NonNull<CFString> = CFRetained::as_ptr(&key_spaces);
+        let key_id64: CFRetained<CFString> = CFString::from_static_str("id64");
+        let key_id64_ptr: NonNull<CFString> = CFRetained::as_ptr(&key_id64);
+
+        for i in 0..display_spaces.count() {
+            let mut workspaces_of_this_display = Vec::new();
+
+            let dict_ref = display_spaces.value_at_index(i);
+            let dict: &CFDictionary = &*(dict_ref as *const CFDictionary);
+
+            let mut ptr_to_value_buffer: *const c_void = std::ptr::null();
+            let key_exists = dict.value_if_present(
+                key_spaces_ptr.as_ptr().cast::<c_void>().cast_const(),
+                &mut ptr_to_value_buffer as *mut _,
+            );
+            assert!(key_exists);
+            assert!(!ptr_to_value_buffer.is_null());
+
+            let spaces_raw: *const CFArray = ptr_to_value_buffer.cast::<CFArray>();
+
+            let spaces = &*spaces_raw;
+
+            for idx in 0..spaces.count() {
+                let workspace_dictionary: &CFDictionary =
+                    &*spaces.value_at_index(idx).cast::<CFDictionary>();
+
+                let mut ptr_to_value_buffer: *const c_void = std::ptr::null();
+                let key_exists = workspace_dictionary.value_if_present(
+                    key_id64_ptr.as_ptr().cast::<c_void>().cast_const(),
+                    &mut ptr_to_value_buffer as *mut _,
+                );
+                assert!(key_exists);
+                assert!(!ptr_to_value_buffer.is_null());
+
+                let ptr_workspace_id = ptr_to_value_buffer.cast::<CFNumber>();
+                let workspace_id = (&*ptr_workspace_id).as_i32().unwrap();
+
+                workspaces_of_this_display.push(workspace_id);
+            }
+
+            ret.push(workspaces_of_this_display);
+        }
+
+        ret
+    }
+}
+
+/// Get the next workspace's logical ID.  By logical ID, we mean the ID that
+/// users are familiar with, workspace 1/2/3 and so on, rather than the internal
+/// `CGSSpaceID`.
+///
+/// NOTE that this function returns None when the current workspace is the last
+/// workspace in the current display.
+pub(crate) fn get_next_workspace_logical_id() -> Option<usize> {
+    let window_server_connection = unsafe { CGSMainConnectionID() };
+    let current_workspace_id = unsafe { CGSGetActiveSpace(window_server_connection) };
+
+    // Logical ID starts from 1
+    let mut logical_id = 1_usize;
+
+    for workspaces_in_a_display in workspace_ids_grouped_by_display() {
+        for (idx, workspace_raw_id) in workspaces_in_a_display.iter().enumerate() {
+            if *workspace_raw_id == current_workspace_id {
+                // We found it, now check if it is the last workspace in this display
+                if idx == workspaces_in_a_display.len() - 1 {
+                    return None;
+                } else {
+                    return Some(logical_id + 1);
+                }
+            } else {
+                logical_id += 1;
+                continue;
+            }
+        }
+    }
+
+    unreachable!(
+        "unless the private API CGSGetActiveSpace() is broken, it should return an ID that is in the workspace ID list"
+    )
+}
+
+/// Get the previous workspace's logical ID.
+///
+/// See [`get_next_workspace_logical_id`] for the doc.
+pub(crate) fn get_previous_workspace_logical_id() -> Option<usize> {
+    let window_server_connection = unsafe { CGSMainConnectionID() };
+    let current_workspace_id = unsafe { CGSGetActiveSpace(window_server_connection) };
+
+    // Logical ID starts from 1
+    let mut logical_id = 1_usize;
+
+    for workspaces_in_a_display in workspace_ids_grouped_by_display() {
+        for (idx, workspace_raw_id) in workspaces_in_a_display.iter().enumerate() {
+            if *workspace_raw_id == current_workspace_id {
+                // We found it, now check if it is the first workspace in this display
+                if idx == 0 {
+                    return None;
+                } else {
+                    // this sub operation is safe, logical_id is at least 2
+                    return Some(logical_id - 1);
+                }
+            } else {
+                logical_id += 1;
+                continue;
+            }
+        }
+    }
+
+    unreachable!(
+        "unless the private API CGSGetActiveSpace() is broken, it should return an ID that is in the workspace ID list"
+    )
+}
+
+/// Move the frontmost window to the specified workspace.
+///
+/// Credits to the Silica library
+///
+/// * https://github.com/ianyh/Silica/blob/b91a18dbb822e99ce6b487d1cb4841e863139b2a/Silica/Sources/SIWindow.m#L215-L260
+/// * https://github.com/ianyh/Silica/blob/b91a18dbb822e99ce6b487d1cb4841e863139b2a/Silica/Sources/SISystemWideElement.m#L29-L65
+pub(crate) fn move_frontmost_window_to_workspace(space: usize) -> Result<(), Error> {
+    assert!(space >= 1);
+    if space > 16 {
+        return Err(Error::TooManyWorkspace);
+    }
+
+    let window_frame = get_frontmost_window_frame()?;
+    let close_button_frame = get_frontmost_window_close_button_frame()?;
+    let prev_mouse_position = unsafe {
+        let event = CGEvent::new(None);
+        CGEvent::location(event.as_deref())
+    };
+
+    let mouse_cursor_point = CGPoint::new(
+        unsafe { CGRectGetMidX(close_button_frame) },
+        window_frame.origin.y
+            + (window_frame.origin.y - unsafe { CGRectGetMinY(close_button_frame) }).abs() / 2.0,
+    );
+
+    let mouse_move_event = unsafe {
+        CGEvent::new_mouse_event(
+            None,
+            CGEventType::MouseMoved,
+            mouse_cursor_point,
+            CGMouseButton::Left,
+        )
+    };
+    let mouse_drag_event = unsafe {
+        CGEvent::new_mouse_event(
+            None,
+            CGEventType::LeftMouseDragged,
+            mouse_cursor_point,
+            CGMouseButton::Left,
+        )
+    };
+    let mouse_down_event = unsafe {
+        CGEvent::new_mouse_event(
+            None,
+            CGEventType::LeftMouseDown,
+            mouse_cursor_point,
+            CGMouseButton::Left,
+        )
+    };
+    let mouse_up_event = unsafe {
+        CGEvent::new_mouse_event(
+            None,
+            CGEventType::LeftMouseUp,
+            mouse_cursor_point,
+            CGMouseButton::Left,
+        )
+    };
+
+    unsafe {
+        CGEvent::set_flags(mouse_move_event.as_deref(), CGEventFlags(0));
+        CGEvent::set_flags(mouse_down_event.as_deref(), CGEventFlags(0));
+        CGEvent::set_flags(mouse_up_event.as_deref(), CGEventFlags(0));
+
+        // Move the mouse into place at the window's toolbar
+        CGEvent::post(CGEventTapLocation::HIDEventTap, mouse_move_event.as_deref());
+        // Mouse down to set up the drag
+        CGEvent::post(CGEventTapLocation::HIDEventTap, mouse_down_event.as_deref());
+        // Drag event to grab hold of the window
+        CGEvent::post(CGEventTapLocation::HIDEventTap, mouse_drag_event.as_deref());
+    }
+
+    // Make a slight delay to make sure the window is grabbed
+    std::thread::sleep(Duration::from_millis(50));
+
+    // cast is safe as space is in range [1, 16]
+    let hot_key: c_ushort = 118 + space as c_ushort - 1;
+
+    let mut flags: c_uint = 0;
+    let mut key_code: c_ushort = 0;
+    let error = unsafe {
+        private::CGSGetSymbolicHotKeyValue(hot_key, std::ptr::null_mut(), &mut key_code, &mut flags)
+    };
+    if error != CGError::Success {
+        return Err(Error::CGError(error));
+    }
+
+    unsafe {
+        // If the hotkey is disabled, enable it.
+        if !private::CGSIsSymbolicHotKeyEnabled(hot_key) {
+            if private::CGSSetSymbolicHotKeyEnabled(hot_key, true) != CGError::Success {
+                return Err(Error::CGError(error));
+            }
+        }
+    }
+
+    let opt_keyboard_event = unsafe { CGEvent::new_keyboard_event(None, key_code, true) };
+    unsafe {
+        // cast is safe (uint -> u64)
+        CGEvent::set_flags(opt_keyboard_event.as_deref(), CGEventFlags(flags as u64));
+    }
+
+    let keyboard_event = opt_keyboard_event.unwrap();
+    let event = unsafe { NSEvent::eventWithCGEvent(&keyboard_event) }.unwrap();
+
+    let keyboard_event_up = unsafe { CGEvent::new_keyboard_event(None, event.keyCode(), false) };
+    unsafe {
+        CGEvent::set_flags(keyboard_event_up.as_deref(), CGEventFlags(0));
+
+        // Send the shortcut command to get Mission Control to switch spaces from under the window.
+        CGEvent::post(CGEventTapLocation::HIDEventTap, event.CGEvent().as_deref());
+        CGEvent::post(
+            CGEventTapLocation::HIDEventTap,
+            keyboard_event_up.as_deref(),
+        );
+    }
+
+    // Make a slight delay to finish the space transition animation
+    std::thread::sleep(Duration::from_millis(50));
+
+    /*
+     * Cleanup
+     */
+    unsafe {
+        // Let go of the window.
+        CGEvent::post(CGEventTapLocation::HIDEventTap, mouse_up_event.as_deref());
+
+        // Reset mouse position
+        let mouse_reset_event = {
+            CGEvent::new_mouse_event(
+                None,
+                CGEventType::MouseMoved,
+                prev_mouse_position,
+                CGMouseButton::Left,
+            )
+        };
+        CGEvent::set_flags(mouse_reset_event.as_deref(), CGEventFlags(0));
+        CGEvent::post(
+            CGEventTapLocation::HIDEventTap,
+            mouse_reset_event.as_deref(),
+        );
+    }
+
+    Ok(())
+}
+
+pub(crate) fn get_frontmost_window_origin() -> Result<CGPoint, Error> {
+    let frontmost_window = get_frontmost_window()?;
+    get_ui_element_origin(&frontmost_window)
+}
+
+pub(crate) fn get_frontmost_window_size() -> Result<CGSize, Error> {
+    let frontmost_window = get_frontmost_window()?;
+    get_ui_element_size(&frontmost_window)
+}
+
+pub(crate) fn get_frontmost_window_frame() -> Result<CGRect, Error> {
+    let origin = get_frontmost_window_origin()?;
+    let size = get_frontmost_window_size()?;
+
+    Ok(CGRect { origin, size })
+}
+
+/// Get the frontmost window's close button, then extract its frame.
+fn get_frontmost_window_close_button_frame() -> Result<CGRect, Error> {
+    let window = get_frontmost_window()?;
+
+    let mut ptr_to_close_button: *const CFType = std::ptr::null();
+    let ptr_to_buffer = NonNull::new(&mut ptr_to_close_button).unwrap();
+
+    let close_button_attribute = CFString::from_static_str("AXCloseButton");
+    let error = unsafe { window.copy_attribute_value(&close_button_attribute, ptr_to_buffer) };
+    if error != AXError::Success {
+        return Err(Error::AXError(error));
+    }
+    assert!(!ptr_to_close_button.is_null());
+
+    let close_button_element = ptr_to_close_button.cast::<AXUIElement>().cast_mut();
+    let close_button = unsafe { CFRetained::from_raw(NonNull::new(close_button_element).unwrap()) };
+
+    let origin = get_ui_element_origin(&close_button)?;
+    let size = get_ui_element_size(&close_button)?;
+
+    Ok(CGRect { origin, size })
+}
+
+/// This function returns the "visible frame" [^1] of all the screens.
+///
+/// FIXME: This function relies on the [`visibleFrame()`][vf_doc] API, which
+/// has 2 bugs we need to work around:
+///
+/// 1. It assumes the Dock is on the main display, which in reality depends on
+///    how users arrange their displays and the "Dock position on screen" setting
+///    entry.
+/// 2. For non-main displays, it assumes that they don't have a menu bar, but macOS
+///    puts a menu bar on every display.
+///
+/// Update: This could be wrong, but looks like Apple fixed these 2 bugs in macOS
+/// 26. At least the buggy behaviors disappear in my test.
+///
+///
+/// [^1]: Visible frame: a rectangle defines the portion of the screen in which it
+///      is currently safe to draw your app’s content.
+///
+/// [vf_doc]: https://developer.apple.com/documentation/AppKit/NSScreen/visibleFrame
+pub(crate) fn list_visible_frame_of_all_screens() -> Result<Vec<CGRect>, Error> {
+    let main_thread_marker = MainThreadMarker::new().ok_or(Error::NotInMainThread)?;
+    let screens = NSScreen::screens(main_thread_marker).to_vec();
+
+    if screens.is_empty() {
+        return Ok(Vec::new());
+    }
+
+    let main_screen = screens.first().expect("screens is not empty");
+
+    let frames = screens
+        .iter()
+        .map(|ns_screen| {
+            // NSScreen is an AppKit API, which uses unflipped coordinate
+            // system, flip it
+            let mut unflipped_frame = ns_screen.visibleFrame();
+            let flipped_frame_origin_y = flip_frame_y(
+                main_screen.frame().size.height,
+                unflipped_frame.size.height,
+                unflipped_frame.origin.y,
+            );
+            unflipped_frame.origin.y = flipped_frame_origin_y;
+
+            unflipped_frame
+        })
+        .collect();
+
+    Ok(frames)
+}
+
+/// Get the Visible frame of the "active screen"[^1].
+///
+///
+/// [^1]: the screen which the frontmost window is on.
+pub(crate) fn get_active_screen_visible_frame() -> Result<CGRect, Error> {
+    let main_thread_marker = MainThreadMarker::new().ok_or(Error::NotInMainThread)?;
+
+    let frontmost_window_frame = get_frontmost_window_frame()?;
+
+    let screens = NSScreen::screens(main_thread_marker)
+        .into_iter()
+        .collect::<Vec<_>>();
+
+    if screens.is_empty() {
+        return Err(Error::NoDisplay);
+    }
+
+    let main_screen_height = screens[0].frame().size.height;
+
+    // AppKit uses Unflipped Coordinate System, but Accessibility APIs use
+    // Flipped Coordinate System, we need to flip the origin of these screens.
+    for screen in screens {
+        let mut screen_frame = screen.frame();
+        let unflipped_y = screen_frame.origin.y;
+        let flipped_y = flip_frame_y(main_screen_height, screen_frame.size.height, unflipped_y);
+        screen_frame.origin.y = flipped_y;
+
+        if intersects(screen_frame, frontmost_window_frame) {
+            let mut visible_frame = screen.visibleFrame();
+            let flipped_y = flip_frame_y(
+                main_screen_height,
+                visible_frame.size.height,
+                visible_frame.origin.y,
+            );
+            visible_frame.origin.y = flipped_y;
+
+            return Ok(visible_frame);
+        }
+    }
+
+    unreachable!()
+}
+
+/// Move the frontmost window's origin to the point specified by `x` and `y`.
+pub fn move_frontmost_window(x: f64, y: f64) -> Result<(), Error> {
+    let frontmost_window = get_frontmost_window()?;
+
+    let mut point = CGPoint::new(x, y);
+    let ptr_to_point = NonNull::new((&mut point as *mut CGPoint).cast::<c_void>()).unwrap();
+    let pos_value = unsafe { AXValue::new(AXValueType::CGPoint, ptr_to_point) }.unwrap();
+    let pos_attr = CFString::from_static_str("AXPosition");
+
+    let error = unsafe { frontmost_window.set_attribute_value(&pos_attr, pos_value.deref()) };
+    if error != AXError::Success {
+        return Err(Error::AXError(error));
+    }
+
+    Ok(())
+}
+
+/// Set the frontmost window's frame to the specified frame - adjust size and
+/// location at the same time.
+///
+/// This function **retries** up to `RETRY` times until the set operations
+/// successfully get performed.
+///
+/// # Retry
+///
+/// Retry is added because I encountered a case where `AXUIElementSetAttributeValue()`
+/// does not work in the expected way. When I execute the `NextDisplay` command
+/// to move the focused window from a big display (2560x1440) to a small display
+/// (1440*900), the window size could be set to 1460 sometimes. No idea if this
+/// is a bug of the Accessibility APIs or due to the improper API uses. So we
+/// retry for `RETRY` times at most to try our beest make it behave correctly.
+pub fn set_frontmost_window_frame(frame: CGRect) -> Result<(), Error> {
+    const RETRY: usize = 5;
+    /// Sleep for 50ms as I don't want to send too many requests to the focused
+    /// app and WindowServer because doing that could make them busy and then
+    /// they won't process my set requests.
+    ///
+    /// The above is simply my observation, I don't know how the messaging really
+    /// works under the hood.
+    const SLEEP: Duration = Duration::from_millis(50);
+
+    let frontmost_window = get_frontmost_window()?;
+
+    /*
+     * Set window origin
+     */
+    set_ui_element_origin_oneshot(&frontmost_window, frame.origin)?;
+    for _ in 0..RETRY {
+        std::thread::sleep(SLEEP);
+
+        let current = get_ui_element_origin(&frontmost_window)?;
+        if current == frame.origin {
+            break;
+        } else {
+            set_ui_element_origin_oneshot(&frontmost_window, frame.origin)?;
+        }
+    }
+
+    /*
+     * Set window size
+     */
+    set_ui_element_size_oneshot(&frontmost_window, frame.size)?;
+    for _ in 0..RETRY {
+        std::thread::sleep(SLEEP);
+
+        let current = get_ui_element_size(&frontmost_window)?;
+        // For size, we do not check if `current` has the exact same value as
+        // `frame.size` as I have encountered a case where I ask macOS to set
+        // the height to 1550, but the height gets set to 1551.
+        if cgsize_roughly_equal(current, frame.size, 3.0) {
+            break;
+        } else {
+            set_ui_element_size_oneshot(&frontmost_window, frame.size)?;
+        }
+    }
+
+    Ok(())
+}
+
+pub fn toggle_fullscreen() -> Result<(), Error> {
+    let frontmost_window = get_frontmost_window()?;
+    let fullscreen_attr = CFString::from_static_str("AXFullScreen");
+
+    let mut current_value_ref: *const CFType = std::ptr::null();
+    let error = unsafe {
+        frontmost_window.copy_attribute_value(
+            &fullscreen_attr,
+            NonNull::new(&mut current_value_ref).unwrap(),
+        )
+    };
+
+    // TODO: If the attribute doesn't exist, error won't be Success as well.
+    // Before we handle that, we need to know the error case that will be
+    // returned in that case.
+    if error != AXError::Success {
+        return Err(Error::AXError(error));
+    }
+    assert!(!current_value_ref.is_null());
+
+    let current_value = unsafe {
+        let retained_boolean: CFRetained<CFBoolean> = CFRetained::from_raw(
+            NonNull::new(current_value_ref.cast::<CFBoolean>().cast_mut()).unwrap(),
+        );
+        retained_boolean.as_bool()
+    };
+
+    let new_value = !current_value;
+    let new_value_ref: CFRetained<CFBoolean> = CFBoolean::new(new_value).retain();
+
+    let error =
+        unsafe { frontmost_window.set_attribute_value(&fullscreen_attr, new_value_ref.deref()) };
+
+    if error != AXError::Success {
+        return Err(Error::AXError(error));
+    }
+
+    Ok(())
+}
+
+/// Check if `lhs` roughly equals to `rhs`. The Roughness can be controlled by
+/// argument `tolerance`.
+fn cgsize_roughly_equal(lhs: CGSize, rhs: CGSize, tolerance: f64) -> bool {
+    let width_diff = (lhs.width - rhs.width).abs();
+    let height_diff = (lhs.height - rhs.height).abs();
+
+    width_diff <= tolerance && height_diff <= tolerance
+}
+
+static LAST_FRAME: LazyLock<Mutex<HashMap<CGWindowID, CGRect>>> =
+    LazyLock::new(|| Mutex::new(HashMap::new()));
+
+pub(crate) fn set_frontmost_window_last_frame(window_id: CGWindowID, frame: CGRect) {
+    let mut map = LAST_FRAME.lock().unwrap();
+    map.insert(window_id, frame);
+}
+
+pub(crate) fn get_frontmost_window_last_frame(window_id: CGWindowID) -> Option<CGRect> {
+    let map = LAST_FRAME.lock().unwrap();
+    map.get(&window_id).cloned()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_intersects_adjacent_rects_x() {
+        let r1 = CGRect::new(CGPoint::new(0.0, 0.0), CGSize::new(100.0, 100.0));
+        let r2 = CGRect::new(CGPoint::new(100.0, 0.0), CGSize::new(100.0, 100.0));
+        assert!(
+            !intersects(r1, r2),
+            "Adjacent rects on X should not intersect"
+        );
+    }
+
+    #[test]
+    fn test_intersects_adjacent_rects_y() {
+        let r1 = CGRect::new(CGPoint::new(0.0, 0.0), CGSize::new(100.0, 100.0));
+        let r2 = CGRect::new(CGPoint::new(0.0, 100.0), CGSize::new(100.0, 100.0));
+        assert!(
+            !intersects(r1, r2),
+            "Adjacent rects on Y should not intersect"
+        );
+    }
+
+    #[test]
+    fn test_intersects_overlapping_rects() {
+        let r1 = CGRect::new(CGPoint::new(0.0, 0.0), CGSize::new(100.0, 100.0));
+        let r2 = CGRect::new(CGPoint::new(50.0, 50.0), CGSize::new(100.0, 100.0));
+        assert!(intersects(r1, r2), "Overlapping rects should intersect");
+    }
+
+    #[test]
+    fn test_intersects_separate_rects() {
+        let r1 = CGRect::new(CGPoint::new(0.0, 0.0), CGSize::new(100.0, 100.0));
+        let r2 = CGRect::new(CGPoint::new(101.0, 101.0), CGSize::new(100.0, 100.0));
+        assert!(!intersects(r1, r2), "Separate rects should not intersect");
+    }
+
+    #[test]
+    fn test_intersects_contained_rect() {
+        let r1 = CGRect::new(CGPoint::new(0.0, 0.0), CGSize::new(100.0, 100.0));
+        let r2 = CGRect::new(CGPoint::new(10.0, 10.0), CGSize::new(50.0, 50.0));
+        assert!(intersects(r1, r2), "Contained rect should intersect");
+    }
+
+    #[test]
+    fn test_intersects_identical_rects() {
+        let r1 = CGRect::new(CGPoint::new(0.0, 0.0), CGSize::new(100.0, 100.0));
+        let r2 = CGRect::new(CGPoint::new(0.0, 0.0), CGSize::new(100.0, 100.0));
+        assert!(intersects(r1, r2), "Identical rects should intersect");
+    }
+}

src-tauri/src/extension/built_in/window_management/backend/private.rs

@@ -0,0 +1,70 @@
+//! Private macOS APIs.
+
+use bitflags::bitflags;
+use objc2_application_services::AXError;
+use objc2_application_services::AXUIElement;
+use objc2_core_foundation::CFArray;
+use objc2_core_graphics::CGError;
+use objc2_core_graphics::CGWindowID;
+use std::ffi::c_int;
+use std::ffi::c_uint;
+use std::ffi::c_ushort;
+
+pub(crate) type CGSConnectionID = u32;
+pub(crate) type CGSSpaceID = c_int;
+
+bitflags! {
+    #[derive(Debug, Copy, Clone, PartialEq, Eq)]
+    #[repr(transparent)]
+    pub struct CGSSpaceMask: c_int {
+        const INCLUDE_CURRENT = 1 << 0;
+        const INCLUDE_OTHERS  = 1 << 1;
+
+        const INCLUDE_USER    = 1 << 2;
+        const INCLUDE_OS      = 1 << 3;
+
+        const VISIBLE         = 1 << 16;
+
+        const CURRENT_SPACES = Self::INCLUDE_USER.bits() | Self::INCLUDE_CURRENT.bits();
+        const OTHER_SPACES = Self::INCLUDE_USER.bits() | Self::INCLUDE_OTHERS.bits();
+        const ALL_SPACES =
+            Self::INCLUDE_USER.bits() | Self::INCLUDE_OTHERS.bits() | Self::INCLUDE_CURRENT.bits();
+
+        const ALL_VISIBLE_SPACES = Self::ALL_SPACES.bits() | Self::VISIBLE.bits();
+
+        const CURRENT_OS_SPACES = Self::INCLUDE_OS.bits() | Self::INCLUDE_CURRENT.bits();
+        const OTHER_OS_SPACES = Self::INCLUDE_OS.bits() | Self::INCLUDE_OTHERS.bits();
+        const ALL_OS_SPACES =
+            Self::INCLUDE_OS.bits() | Self::INCLUDE_OTHERS.bits() | Self::INCLUDE_CURRENT.bits();
+    }
+}
+
+unsafe extern "C" {
+    /// Extract `window_id` from an AXUIElement.
+    pub(crate) fn _AXUIElementGetWindow(
+        elem: *mut AXUIElement,
+        window_id: *mut CGWindowID,
+    ) -> AXError;
+
+    /// Connect to the WindowServer and get a connection descriptor.
+    pub(crate) fn CGSMainConnectionID() -> CGSConnectionID;
+
+    /// It returns a CFArray of dictionaries. Each dictionary contains information
+    /// about a display, including a list of all the spaces (CGSSpaceID) on that display.
+    pub(crate) fn CGSCopyManagedDisplaySpaces(cid: CGSConnectionID) -> *mut CFArray;
+
+    /// Gets the ID of the space currently visible to the user.
+    pub(crate) fn CGSGetActiveSpace(cid: CGSConnectionID) -> CGSSpaceID;
+
+    /// Returns the values the symbolic hot key represented by the given UID is configured with.
+    pub(crate) fn CGSGetSymbolicHotKeyValue(
+        hotKey: c_ushort,
+        outKeyEquivalent: *mut c_ushort,
+        outVirtualKeyCode: *mut c_ushort,
+        outModifiers: *mut c_uint,
+    ) -> CGError;
+    /// Returns whether the symbolic hot key represented by the given UID is enabled.
+    pub(crate) fn CGSIsSymbolicHotKeyEnabled(hotKey: c_ushort) -> bool;
+    /// Sets whether the symbolic hot key represented by the given UID is enabled.
+    pub(crate) fn CGSSetSymbolicHotKeyEnabled(hotKey: c_ushort, isEnabled: bool) -> CGError;
+}

src-tauri/src/extension/built_in/window_management/error.rs

@@ -0,0 +1,25 @@
+use objc2_application_services::AXError;
+use objc2_core_graphics::CGError;
+use thiserror::Error;
+
+#[derive(Debug, Error)]
+pub enum Error {
+    /// Cannot find the focused window.
+    #[error("Cannot find the focused window.")]
+    CannotFindFocusWindow,
+    /// Error code from the macOS Accessibility APIs.
+    #[error("Error code from the macOS Accessibility APIs: {0:?}")]
+    AXError(AXError),
+    /// Function should be in called from the main thread, but it is not.
+    #[error("Function should be in called from the main thread, but it is not.")]
+    NotInMainThread,
+    /// No monitor detected.
+    #[error("No monitor detected.")]
+    NoDisplay,
+    /// Can only handle 16 Workspaces at most.
+    #[error("libwmgr can only handle 16 Workspaces at most.")]
+    TooManyWorkspace,
+    /// Error code from the macOS Core Graphics APIs.
+    #[error("Error code from the macOS Core Graphics APIs: {0:?}")]
+    CGError(CGError),
+}

src-tauri/src/extension/built_in/window_management/mod.rs

@@ -0,0 +1,974 @@
+pub(crate) mod actions;
+mod backend;
+mod error;
+pub(crate) mod on_opened;
+pub(crate) mod search_source;
+
+use crate::common::document::open;
+use crate::extension::Extension;
+use actions::Action;
+use backend::get_active_screen_visible_frame;
+use backend::get_frontmost_window_frame;
+use backend::get_frontmost_window_id;
+use backend::get_frontmost_window_last_frame;
+use backend::get_next_workspace_logical_id;
+use backend::get_previous_workspace_logical_id;
+use backend::list_visible_frame_of_all_screens;
+use backend::move_frontmost_window;
+use backend::move_frontmost_window_to_workspace;
+use backend::set_frontmost_window_frame;
+use backend::set_frontmost_window_last_frame;
+use backend::toggle_fullscreen;
+use error::Error;
+use objc2_core_foundation::{CGPoint, CGRect, CGSize};
+use oneshot::channel as oneshot_channel;
+use tauri::AppHandle;
+use tauri::async_runtime;
+use tauri_plugin_global_shortcut::GlobalShortcutExt;
+use tauri_plugin_global_shortcut::ShortcutState;
+
+pub(crate) const EXTENSION_ID: &str = "Window Management";
+pub(crate) const EXTENSION_NAME_LOWERCASE: &str = "window management";
+
+/// JSON file for this extension.
+pub(crate) const PLUGIN_JSON_FILE: &str = include_str!("./plugin.json");
+
+pub(crate) fn perform_action_on_main_thread(
+    tauri_app_handle: &AppHandle,
+    action: Action,
+) -> Result<(), String> {
+    let (tx, rx) = oneshot_channel();
+
+    tauri_app_handle
+        .run_on_main_thread(move || {
+            let res = perform_action(action).map_err(|e| e.to_string());
+            tx.send(res)
+                .expect("oneshot channel receiver unexpectedly dropped");
+        })
+        .expect("tauri internal bug, channel receiver dropped");
+
+    rx.recv()
+        .expect("oneshot channel sender unexpectedly dropped before sending function return value")
+}
+
+/// Perform this action to the focused window.
+fn perform_action(action: Action) -> Result<(), Error> {
+    let visible_frame = get_active_screen_visible_frame()?;
+    let frontmost_window_id = get_frontmost_window_id()?;
+    let frontmost_window_frame = get_frontmost_window_frame()?;
+
+    set_frontmost_window_last_frame(frontmost_window_id, frontmost_window_frame);
+
+    match action {
+        Action::TopHalf => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width,
+                height: visible_frame.size.height / 2.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::BottomHalf => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y + visible_frame.size.height / 2.0,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width,
+                height: visible_frame.size.height / 2.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::LeftHalf => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width / 2.0,
+                height: visible_frame.size.height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::RightHalf => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width / 2.0,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width / 2.0,
+                height: visible_frame.size.height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::CenterHalf => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width / 4.0,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width / 2.0,
+                height: visible_frame.size.height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::TopLeftQuarter => {
+            let origin = visible_frame.origin;
+            let size = CGSize {
+                width: visible_frame.size.width / 2.0,
+                height: visible_frame.size.height / 2.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::TopRightQuarter => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width / 2.0,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width / 2.0,
+                height: visible_frame.size.height / 2.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::BottomLeftQuarter => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y + visible_frame.size.height / 2.0,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width / 2.0,
+                height: visible_frame.size.height / 2.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::BottomRightQuarter => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width / 2.0,
+                y: visible_frame.origin.y + visible_frame.size.height / 2.0,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width / 2.0,
+                height: visible_frame.size.height / 2.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::TopLeftSixth => {
+            let origin = visible_frame.origin;
+            let size = CGSize {
+                width: visible_frame.size.width / 3.0,
+                height: visible_frame.size.height / 2.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::TopCenterSixth => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width / 3.0,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width / 3.0,
+                height: visible_frame.size.height / 2.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::TopRightSixth => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width * 2.0 / 3.0,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width / 3.0,
+                height: visible_frame.size.height / 2.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::BottomLeftSixth => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y + visible_frame.size.height / 2.0,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width / 3.0,
+                height: visible_frame.size.height / 2.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::BottomCenterSixth => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width / 3.0,
+                y: visible_frame.origin.y + visible_frame.size.height / 2.0,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width / 3.0,
+                height: visible_frame.size.height / 2.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::BottomRightSixth => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width * 2.0 / 3.0,
+                y: visible_frame.origin.y + visible_frame.size.height / 2.0,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width / 3.0,
+                height: visible_frame.size.height / 2.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::TopThird => {
+            let origin = visible_frame.origin;
+            let size = CGSize {
+                width: visible_frame.size.width,
+                height: visible_frame.size.height / 3.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::MiddleThird => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y + visible_frame.size.height / 3.0,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width,
+                height: visible_frame.size.height / 3.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::BottomThird => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y + visible_frame.size.height * 2.0 / 3.0,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width,
+                height: visible_frame.size.height / 3.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::Center => {
+            let window_size = frontmost_window_frame.size;
+            let origin = CGPoint {
+                x: visible_frame.origin.x + (visible_frame.size.width - window_size.width) / 2.0,
+                y: visible_frame.origin.y + (visible_frame.size.height - window_size.height) / 2.0,
+            };
+            move_frontmost_window(origin.x, origin.y)
+        }
+        Action::FirstFourth => {
+            let origin = visible_frame.origin;
+            let size = CGSize {
+                width: visible_frame.size.width / 4.0,
+                height: visible_frame.size.height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::SecondFourth => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width / 4.0,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width / 4.0,
+                height: visible_frame.size.height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::ThirdFourth => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width * 2.0 / 4.0,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width / 4.0,
+                height: visible_frame.size.height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::LastFourth => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width * 3.0 / 4.0,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width / 4.0,
+                height: visible_frame.size.height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::FirstThird => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width / 3.0,
+                height: visible_frame.size.height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::CenterThird => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width / 3.0,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width / 3.0,
+                height: visible_frame.size.height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::LastThird => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width * 2.0 / 3.0,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width / 3.0,
+                height: visible_frame.size.height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::FirstTwoThirds => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width * 2.0 / 3.0,
+                height: visible_frame.size.height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::CenterTwoThirds => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width / 6.0,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width * 2.0 / 3.0,
+                height: visible_frame.size.height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::LastTwoThirds => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width / 3.0,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width * 2.0 / 3.0,
+                height: visible_frame.size.height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::FirstThreeFourths => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width * 3.0 / 4.0,
+                height: visible_frame.size.height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::CenterThreeFourths => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width / 8.0,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width * 3.0 / 4.0,
+                height: visible_frame.size.height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::LastThreeFourths => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width / 4.0,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width * 3.0 / 4.0,
+                height: visible_frame.size.height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::TopThreeFourths => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width,
+                height: visible_frame.size.height * 3.0 / 4.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::BottomThreeFourths => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y + visible_frame.size.height / 4.0,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width,
+                height: visible_frame.size.height * 3.0 / 4.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::TopTwoThirds => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width,
+                height: visible_frame.size.height * 2.0 / 3.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::BottomTwoThirds => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y + visible_frame.size.height / 3.0,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width,
+                height: visible_frame.size.height * 2.0 / 3.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+
+        Action::TopCenterTwoThirds => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x + visible_frame.size.width / 6.0,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width * 2.0 / 3.0,
+                height: visible_frame.size.height * 2.0 / 3.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::TopFirstFourth => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width,
+                height: visible_frame.size.height / 4.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::TopSecondFourth => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y + visible_frame.size.height / 4.0,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width,
+                height: visible_frame.size.height / 4.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::TopThirdFourth => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y + visible_frame.size.height * 2.0 / 4.0,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width,
+                height: visible_frame.size.height / 4.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::TopLastFourth => {
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: visible_frame.origin.y + visible_frame.size.height * 3.0 / 4.0,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width,
+                height: visible_frame.size.height / 4.0,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::MakeLarger => {
+            let window_origin = frontmost_window_frame.origin;
+            let window_size = frontmost_window_frame.size;
+            let delta_width = 20_f64;
+            let delta_height = window_size.height / window_size.width * delta_width;
+            let delta_origin_x = delta_width / 2.0;
+            let delta_origin_y = delta_height / 2.0;
+
+            let new_width = {
+                let possible_value = window_size.width + delta_width;
+                if possible_value > visible_frame.size.width {
+                    visible_frame.size.width
+                } else {
+                    possible_value
+                }
+            };
+            let new_height = {
+                let possible_value = window_size.height + delta_height;
+                if possible_value > visible_frame.size.height {
+                    visible_frame.size.height
+                } else {
+                    possible_value
+                }
+            };
+
+            let new_origin_x = {
+                let possible_value = window_origin.x - delta_origin_x;
+                if possible_value < visible_frame.origin.x {
+                    visible_frame.origin.x
+                } else {
+                    possible_value
+                }
+            };
+            let new_origin_y = {
+                let possible_value = window_origin.y - delta_origin_y;
+                if possible_value < visible_frame.origin.y {
+                    visible_frame.origin.y
+                } else {
+                    possible_value
+                }
+            };
+
+            let origin = CGPoint {
+                x: new_origin_x,
+                y: new_origin_y,
+            };
+            let size = CGSize {
+                width: new_width,
+                height: new_height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::MakeSmaller => {
+            let window_origin = frontmost_window_frame.origin;
+            let window_size = frontmost_window_frame.size;
+
+            let delta_width = 20_f64;
+            let delta_height = window_size.height / window_size.width * delta_width;
+
+            let delta_origin_x = delta_width / 2.0;
+            let delta_origin_y = delta_height / 2.0;
+
+            let origin = CGPoint {
+                x: window_origin.x + delta_origin_x,
+                y: window_origin.y + delta_origin_y,
+            };
+            let size = CGSize {
+                width: window_size.width - delta_width,
+                height: window_size.height - delta_height,
+            };
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::AlmostMaximize => {
+            let new_size = CGSize {
+                width: visible_frame.size.width * 0.9,
+                height: visible_frame.size.height * 0.9,
+            };
+            let new_origin = CGPoint {
+                x: visible_frame.origin.x + (visible_frame.size.width * 0.1),
+                y: visible_frame.origin.y + (visible_frame.size.height * 0.1),
+            };
+            let new_frame = CGRect {
+                origin: new_origin,
+                size: new_size,
+            };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::Maximize => {
+            let new_frame = CGRect {
+                origin: visible_frame.origin,
+                size: visible_frame.size,
+            };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::MaximizeWidth => {
+            let window_origin = frontmost_window_frame.origin;
+            let window_size = frontmost_window_frame.size;
+            let origin = CGPoint {
+                x: visible_frame.origin.x,
+                y: window_origin.y,
+            };
+            let size = CGSize {
+                width: visible_frame.size.width,
+                height: window_size.height,
+            };
+
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::MaximizeHeight => {
+            let window_origin = frontmost_window_frame.origin;
+            let window_size = frontmost_window_frame.size;
+            let origin = CGPoint {
+                x: window_origin.x,
+                y: visible_frame.origin.y,
+            };
+            let size = CGSize {
+                width: window_size.width,
+                height: visible_frame.size.height,
+            };
+
+            let new_frame = CGRect { origin, size };
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::MoveUp => {
+            let window_origin = frontmost_window_frame.origin;
+            let new_y = (window_origin.y - 10.0).max(visible_frame.origin.y);
+            move_frontmost_window(window_origin.x, new_y)
+        }
+        Action::MoveDown => {
+            let window_origin = frontmost_window_frame.origin;
+            let window_size = frontmost_window_frame.size;
+            let new_y = (window_origin.y + 10.0)
+                .min(visible_frame.origin.y + visible_frame.size.height - window_size.height);
+            move_frontmost_window(window_origin.x, new_y)
+        }
+        Action::MoveLeft => {
+            let window_origin = frontmost_window_frame.origin;
+            let new_x = (window_origin.x - 10.0).max(visible_frame.origin.x);
+            move_frontmost_window(new_x, window_origin.y)
+        }
+        Action::MoveRight => {
+            let window_origin = frontmost_window_frame.origin;
+            let window_size = frontmost_window_frame.size;
+            let new_x = (window_origin.x + 10.0)
+                .min(visible_frame.origin.x + visible_frame.size.width - window_size.width);
+            move_frontmost_window(new_x, window_origin.y)
+        }
+        Action::NextDesktop => {
+            let Some(next_workspace_logical_id) = get_next_workspace_logical_id() else {
+                // nothing to do
+                return Ok(());
+            };
+
+            move_frontmost_window_to_workspace(next_workspace_logical_id)
+        }
+        Action::PreviousDesktop => {
+            let Some(previous_workspace_logical_id) = get_previous_workspace_logical_id() else {
+                // nothing to do
+                return Ok(());
+            };
+
+            // Now let's switch the workspace
+            move_frontmost_window_to_workspace(previous_workspace_logical_id)
+        }
+        Action::NextDisplay => {
+            const TOO_MANY_MONITORS: &str = "I don't think you can have so many monitors";
+
+            let frames = list_visible_frame_of_all_screens()?;
+            let n_frames = frames.len();
+            if n_frames == 0 {
+                return Err(Error::NoDisplay);
+            }
+            if n_frames == 1 {
+                return Ok(());
+            }
+
+            let index = frames
+                .iter()
+                .position(|fr| fr == &visible_frame)
+                .expect("active screen should be in the list");
+            let new_index: usize = {
+                let index_i32: i32 = index.try_into().expect(TOO_MANY_MONITORS);
+                let index_i32_plus_one = index_i32.checked_add(1).expect(TOO_MANY_MONITORS);
+                let final_value = index_i32_plus_one % n_frames as i32;
+
+                final_value
+                    .try_into()
+                    .expect("final value should be positive")
+            };
+
+            let new_frame = frames[new_index];
+
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::PreviousDisplay => {
+            const TOO_MANY_MONITORS: &str = "I don't think you can have so many monitors";
+
+            let frames = list_visible_frame_of_all_screens()?;
+            let n_frames = frames.len();
+            if n_frames == 0 {
+                return Err(Error::NoDisplay);
+            }
+            if n_frames == 1 {
+                return Ok(());
+            }
+            let index = frames
+                .iter()
+                .position(|fr| fr == &visible_frame)
+                .expect("active screen should be in the list");
+            let new_index: usize = {
+                let index_i32: i32 = index.try_into().expect(TOO_MANY_MONITORS);
+                let index_i32_minus_one = index_i32 - 1;
+                let n_frames_i32: i32 = n_frames.try_into().expect(TOO_MANY_MONITORS);
+                let final_value = (index_i32_minus_one + n_frames_i32) % n_frames_i32;
+
+                final_value
+                    .try_into()
+                    .expect("final value should be positive")
+            };
+
+            let new_frame = frames[new_index];
+
+            set_frontmost_window_frame(new_frame)
+        }
+        Action::Restore => {
+            let Some(previous_frame) = get_frontmost_window_last_frame(frontmost_window_id) else {
+                // Previous frame found, Nothing to do
+                return Ok(());
+            };
+
+            set_frontmost_window_frame(previous_frame)
+        }
+        Action::ToggleFullscreen => toggle_fullscreen(),
+    }
+}
+
+pub(crate) fn set_up_commands_hotkeys(
+    tauri_app_handle: &AppHandle,
+    wm_extension: &Extension,
+) -> Result<(), String> {
+    for command in wm_extension
+        .commands
+        .as_ref()
+        .expect("Window Management extension has commands")
+        .iter()
+        .filter(|cmd| cmd.enabled)
+    {
+        if let Some(ref hotkey) = command.hotkey {
+            let on_opened = on_opened::on_opened(&command.id);
+
+            let extension_id_clone = command.id.clone();
+
+            tauri_app_handle
+                .global_shortcut()
+                .on_shortcut(hotkey.as_str(), move |tauri_app_handle, _hotkey, event| {
+                    let on_opened_clone = on_opened.clone();
+                    let extension_id_clone = extension_id_clone.clone();
+                    let app_handle_clone = tauri_app_handle.clone();
+
+                    if event.state() == ShortcutState::Pressed {
+                        async_runtime::spawn(async move {
+                            let result = open(app_handle_clone, on_opened_clone, None).await;
+                            if let Err(msg) = result {
+                                log::warn!(
+                                    "failed to open extension [{}], error [{}]",
+                                    extension_id_clone,
+                                    msg
+                                );
+                            }
+                        });
+                    }
+                })
+                .map_err(|e| e.to_string())?;
+        }
+    }
+
+    Ok(())
+}
+
+pub(crate) fn unset_commands_hotkeys(
+    tauri_app_handle: &AppHandle,
+    wm_extension: &Extension,
+) -> Result<(), String> {
+    for command in wm_extension
+        .commands
+        .as_ref()
+        .expect("Window Management extension has commands")
+        .iter()
+        .filter(|cmd| cmd.enabled)
+    {
+        if let Some(ref hotkey) = command.hotkey {
+            tauri_app_handle
+                .global_shortcut()
+                .unregister(hotkey.as_str())
+                .map_err(|e| e.to_string())?;
+        }
+    }
+
+    Ok(())
+}
+
+pub(crate) fn set_up_command_hotkey(
+    tauri_app_handle: &AppHandle,
+    wm_extension: &Extension,
+    command_id: &str,
+) -> Result<(), String> {
+    let commands = wm_extension
+        .commands
+        .as_ref()
+        .expect("Window Management has commands");
+    let opt_command = commands.iter().find(|ext| ext.id == command_id);
+
+    let Some(command) = opt_command else {
+        panic!("Window Management command does not exist {}", command_id);
+    };
+
+    if let Some(ref hotkey) = command.hotkey {
+        let on_opened = on_opened::on_opened(&command.id);
+
+        let extension_id_clone = command.id.clone();
+
+        tauri_app_handle
+            .global_shortcut()
+            .on_shortcut(hotkey.as_str(), move |tauri_app_handle, _hotkey, event| {
+                let on_opened_clone = on_opened.clone();
+                let extension_id_clone = extension_id_clone.clone();
+                let app_handle_clone = tauri_app_handle.clone();
+
+                if event.state() == ShortcutState::Pressed {
+                    async_runtime::spawn(async move {
+                        let result = open(app_handle_clone, on_opened_clone, None).await;
+                        if let Err(msg) = result {
+                            log::warn!(
+                                "failed to open extension [{}], error [{}]",
+                                extension_id_clone,
+                                msg
+                            );
+                        }
+                    });
+                }
+            })
+            .map_err(|e| e.to_string())?;
+    }
+
+    Ok(())
+}
+
+pub(crate) fn unset_command_hotkey(
+    tauri_app_handle: &AppHandle,
+    wm_extension: &Extension,
+    command_id: &str,
+) -> Result<(), String> {
+    let commands = wm_extension
+        .commands
+        .as_ref()
+        .expect("Window Management has commands");
+    let opt_command = commands.iter().find(|ext| ext.id == command_id);
+
+    let Some(command) = opt_command else {
+        panic!("Window Management command does not exist {}", command_id);
+    };
+
+    if let Some(ref hotkey) = command.hotkey {
+        tauri_app_handle
+            .global_shortcut()
+            .unregister(hotkey.as_str())
+            .map_err(|e| e.to_string())?;
+    }
+
+    Ok(())
+}
+
+pub(crate) fn register_command_hotkey(
+    tauri_app_handle: &AppHandle,
+    command_id: &str,
+    hotkey: &str,
+) -> Result<(), String> {
+    let on_opened = on_opened::on_opened(&command_id);
+
+    let extension_id_clone = command_id.to_string();
+
+    tauri_app_handle
+        .global_shortcut()
+        .on_shortcut(hotkey, move |tauri_app_handle, _hotkey, event| {
+            let on_opened_clone = on_opened.clone();
+            let extension_id_clone = extension_id_clone.clone();
+            let app_handle_clone = tauri_app_handle.clone();
+
+            if event.state() == ShortcutState::Pressed {
+                async_runtime::spawn(async move {
+                    let result = open(app_handle_clone, on_opened_clone, None).await;
+                    if let Err(msg) = result {
+                        log::warn!(
+                            "failed to open extension [{}], error [{}]",
+                            extension_id_clone,
+                            msg
+                        );
+                    }
+                });
+            }
+        })
+        .map_err(|e| e.to_string())?;
+
+    Ok(())
+}
+
+pub(crate) fn unregister_command_hotkey(
+    tauri_app_handle: &AppHandle,
+    wm_extension: &Extension,
+    command_id: &str,
+) -> Result<(), String> {
+    let commands = wm_extension
+        .commands
+        .as_ref()
+        .expect("Window Management has commands");
+    let opt_command = commands.iter().find(|ext| ext.id == command_id);
+
+    let Some(command) = opt_command else {
+        panic!("Window Management command does not exist {}", command_id);
+    };
+
+    let Some(ref hotkey) = command.hotkey else {
+        return Ok(());
+    };
+
+    tauri_app_handle
+        .global_shortcut()
+        .unregister(hotkey.as_str())
+        .map_err(|e| e.to_string())?;
+
+    Ok(())
+}

src-tauri/src/extension/built_in/window_management/on_opened.rs

@@ -0,0 +1,10 @@
+use super::actions::Action;
+use crate::common::document::OnOpened;
+use serde_plain;
+
+pub(crate) fn on_opened(command_id: &str) -> OnOpened {
+    let action: Action = serde_plain::from_str(command_id).unwrap_or_else(|_| {
+        panic!("Window Management commands IDs should be valid for `enum Action`, someone corrupts the JSON file");
+    });
+    OnOpened::WindowManagementAction { action }
+}

src-tauri/src/extension/built_in/window_management/plugin.json

@@ -0,0 +1,415 @@
+{
+  "id": "Window Management",
+  "name": "Window Management",
+  "platforms": [
+    "macos"
+  ],
+  "description": "Resize, reorganize and move your focused window effortlessly",
+  "icon": "font_a-Windowmanagement",
+  "type": "extension",
+  "category": "Utilities",
+  "tags": [
+    "Productivity"
+  ],
+  "commands": [
+    {
+      "id": "TopHalf",
+      "name": "Top Half",
+      "description": "Move the focused window to fill left half of the screen.",
+      "icon": "font_a-TopHalf",
+      "type": "command"
+    },
+    {
+      "id": "BottomHalf",
+      "name": "Bottom Half",
+      "description": "Move the focused window to fill bottom half of the screen.",
+      "icon": "font_a-BottomHalf",
+      "type": "command"
+    },
+    {
+      "id": "LeftHalf",
+      "name": "Left Half",
+      "description": "Move the focused window to fill left half of the screen.",
+      "icon": "font_a-LeftHalf",
+      "type": "command"
+    },
+    {
+      "id": "RightHalf",
+      "name": "Right Half",
+      "description": "Move the focused window to fill right half of the screen.",
+      "icon": "font_a-RightHalf",
+      "type": "command"
+    },
+    {
+      "id": "CenterHalf",
+      "name": "Center Half",
+      "description": "Move the focused window to fill center half of the screen.",
+      "icon": "font_a-CenterHalf",
+      "type": "command"
+    },
+    {
+      "id": "Maximize",
+      "name": "Maximize",
+      "description": "Maximize the focused window to fit the screen.",
+      "icon": "font_Maximize",
+      "type": "command"
+    },
+    {
+      "id": "TopLeftQuarter",
+      "name": "Top Left Quarter",
+      "description": "Resize the focused window to the top left quarter of the screen.",
+      "icon": "font_a-TopLeftQuarter",
+      "type": "command"
+    },
+    {
+      "id": "TopRightQuarter",
+      "name": "Top Right Quarter",
+      "description": "Resize the focused window to the top right quarter of the screen.",
+      "icon": "font_a-TopRightQuarter",
+      "type": "command"
+    },
+    {
+      "id": "BottomLeftQuarter",
+      "name": "Bottom Left Quarter",
+      "description": "Resize the focused window to the bottom left quarter of the screen.",
+      "icon": "font_a-BottomLeftQuarter",
+      "type": "command"
+    },
+    {
+      "id": "BottomRightQuarter",
+      "name": "Bottom Right Quarter",
+      "description": "Resize the focused window to the bottom right quarter of the screen.",
+      "icon": "font_a-BottomRightQuarter",
+      "type": "command"
+    },
+    {
+      "id": "TopLeftSixth",
+      "name": "Top Left Sixth",
+      "description": "Resize the focused window to the top left sixth of the screen.",
+      "icon": "font_a-TopLeftSixth",
+      "type": "command"
+    },
+    {
+      "id": "TopCenterSixth",
+      "name": "Top Center Sixth",
+      "description": "Resize the focused window to the top center sixth of the screen.",
+      "icon": "font_a-TopCenterSixth",
+      "type": "command"
+    },
+    {
+      "id": "TopRightSixth",
+      "name": "Top Right Sixth",
+      "description": "Resize the focused window to the top right sixth of the screen.",
+      "icon": "font_a-TopRightSixth",
+      "type": "command"
+    },
+    {
+      "id": "BottomLeftSixth",
+      "name": "Bottom Left Sixth",
+      "description": "Resize the focused window to the bottom left sixth of the screen.",
+      "icon": "font_a-BottomLeftSixth",
+      "type": "command"
+    },
+    {
+      "id": "BottomCenterSixth",
+      "name": "Bottom Center Sixth",
+      "description": "Resize the focused window to the bottom center sixth of the screen.",
+      "icon": "font_a-BottomCenterSixth",
+      "type": "command"
+    },
+    {
+      "id": "BottomRightSixth",
+      "name": "Bottom Right Sixth",
+      "description": "Resize the focused window to the bottom right sixth of the screen.",
+      "icon": "font_a-BottomRightSixth",
+      "type": "command"
+    },
+    {
+      "id": "TopThird",
+      "name": "Top Third",
+      "description": "Resize the focused window to the top third of the screen.",
+      "icon": "font_a-TopThirdFourth",
+      "type": "command"
+    },
+    {
+      "id": "MiddleThird",
+      "name": "Middle Third",
+      "description": "Resize the focused window to the middle third of the screen.",
+      "icon": "font_a-MiddleThird",
+      "type": "command"
+    },
+    {
+      "id": "BottomThird",
+      "name": "Bottom Third",
+      "description": "Resize the focused window to the bottom third of the screen.",
+      "icon": "font_a-BottomThird",
+      "type": "command"
+    },
+    {
+      "id": "Center",
+      "name": "Center",
+      "description": "Center the focused window in the screen.",
+      "icon": "font_Center",
+      "type": "command"
+    },
+    {
+      "id": "FirstFourth",
+      "name": "First Fourth",
+      "description": "Resize the focused window to the first fourth of the screen.",
+      "icon": "font_a-FirstFourth",
+      "type": "command"
+    },
+    {
+      "id": "SecondFourth",
+      "name": "Second Fourth",
+      "description": "Resize the focused window to the second fourth of the screen.",
+      "icon": "font_a-SecondFourth",
+      "type": "command"
+    },
+    {
+      "id": "ThirdFourth",
+      "name": "Third Fourth",
+      "description": "Resize the focused window to the third fourth of the screen.",
+      "icon": "font_a-ThirdFourth",
+      "type": "command"
+    },
+    {
+      "id": "LastFourth",
+      "name": "Last Fourth",
+      "description": "Resize the focused window to the last fourth of the screen.",
+      "icon": "font_a-LastFourth",
+      "type": "command"
+    },
+    {
+      "id": "FirstThird",
+      "name": "First Third",
+      "description": "Resize the focused window to the first third of the screen.",
+      "icon": "font_a-FirstThird",
+      "type": "command"
+    },
+    {
+      "id": "CenterThird",
+      "name": "Center Third",
+      "description": "Resize the focused window to the center third of the screen.",
+      "icon": "font_a-CenterThird",
+      "type": "command"
+    },
+    {
+      "id": "LastThird",
+      "name": "Last Third",
+      "description": "Resize the focused window to the last third of the screen.",
+      "icon": "font_a-LastThird",
+      "type": "command"
+    },
+    {
+      "id": "FirstTwoThirds",
+      "name": "First Two Thirds",
+      "description": "Resize the focused window to the first two thirds of the screen.",
+      "icon": "font_a-FirstTwoThirds",
+      "type": "command"
+    },
+    {
+      "id": "CenterTwoThirds",
+      "name": "Center Two Thirds",
+      "description": "Resize the focused window to the center two thirds of the screen.",
+      "icon": "font_a-CenterTwoThirds",
+      "type": "command"
+    },
+    {
+      "id": "LastTwoThirds",
+      "name": "Last Two Thirds",
+      "description": "Resize the focused window to the last two thirds of the screen.",
+      "icon": "font_a-LastTwoThirds",
+      "type": "command"
+    },
+    {
+      "id": "FirstThreeFourths",
+      "name": "First Three Fourths",
+      "description": "Resize the focused window to the first three fourths of the screen.",
+      "icon": "font_a-FirstThreeFourths",
+      "type": "command"
+    },
+    {
+      "id": "CenterThreeFourths",
+      "name": "Center Three Fourths",
+      "description": "Resize the focused window to the center three fourths of the screen.",
+      "icon": "font_a-CenterThreeFourths",
+      "type": "command"
+    },
+    {
+      "id": "LastThreeFourths",
+      "name": "Last Three Fourths",
+      "description": "Resize the focused window to the last three fourths of the screen.",
+      "icon": "font_a-LastThreeFourths",
+      "type": "command"
+    },
+    {
+      "id": "TopThreeFourths",
+      "name": "Top Three Fourths",
+      "description": "Resize the focused window to the top three fourths of the screen.",
+      "icon": "font_a-TopThreeFourths",
+      "type": "command"
+    },
+    {
+      "id": "BottomThreeFourths",
+      "name": "Bottom Three Fourths",
+      "description": "Resize the focused window to the bottom three fourths of the screen.",
+      "icon": "font_a-BottomThreeFourths",
+      "type": "command"
+    },
+    {
+      "id": "TopTwoThirds",
+      "name": "Top Two Thirds",
+      "description": "Resize the focused window to the top two thirds of the screen.",
+      "icon": "font_a-TopTwoThirds",
+      "type": "command"
+    },
+    {
+      "id": "BottomTwoThirds",
+      "name": "Bottom Two Thirds",
+      "description": "Resize the focused window to the bottom two thirds of the screen.",
+      "icon": "font_a-BottomTwoThirds",
+      "type": "command"
+    },
+    {
+      "id": "TopCenterTwoThirds",
+      "name": "Top Center Two Thirds",
+      "description": "Resize the focused window to the top center two thirds of the screen.",
+      "icon": "font_a-TopCenterTwoThirds",
+      "type": "command"
+    },
+    {
+      "id": "TopFirstFourth",
+      "name": "Top First Fourth",
+      "description": "Resize the focused window to the top first fourth of the screen.",
+      "icon": "font_a-TopFirstFourth",
+      "type": "command"
+    },
+    {
+      "id": "TopSecondFourth",
+      "name": "Top Second Fourth",
+      "description": "Resize the focused window to the top second fourth of the screen.",
+      "icon": "font_a-TopSecondFourth",
+      "type": "command"
+    },
+    {
+      "id": "TopThirdFourth",
+      "name": "Top Third Fourth",
+      "description": "Resize the focused window to the top third fourth of the screen.",
+      "icon": "font_a-TopThirdFourth",
+      "type": "command"
+    },
+    {
+      "id": "TopLastFourth",
+      "name": "Top Last Fourth",
+      "description": "Resize the focused window to the top last fourth of the screen.",
+      "icon": "font_a-TopLastFourth",
+      "type": "command"
+    },
+    {
+      "id": "MakeLarger",
+      "name": "Make Larger",
+      "description": "Increase the focused window until it reaches the screen size.",
+      "icon": "font_a-MakeLarger",
+      "type": "command"
+    },
+    {
+      "id": "MakeSmaller",
+      "name": "Make Smaller",
+      "description": "Decrease the focused window until it reaches its minimal size.",
+      "icon": "font_a-MakeSmaller",
+      "type": "command"
+    },
+    {
+      "id": "AlmostMaximize",
+      "name": "Almost Maximize",
+      "description": "Maximize the focused window to almost fit the screen.",
+      "icon": "font_a-AlmostMaximize",
+      "type": "command"
+    },
+    {
+      "id": "MaximizeWidth",
+      "name": "Maximize Width",
+      "description": "Maximize width of the focused window to fit the screen.",
+      "icon": "font_a-MaximizeWidth",
+      "type": "command"
+    },
+    {
+      "id": "MaximizeHeight",
+      "name": "Maximize Height",
+      "description": "Maximize height of the focused window to fit the screen.",
+      "icon": "font_a-MaximizeHeight",
+      "type": "command"
+    },
+    {
+      "id": "MoveUp",
+      "name": "Move Up",
+      "description": "Move the focused window to the top edge of the screen.",
+      "icon": "font_a-MoveUp",
+      "type": "command"
+    },
+    {
+      "id": "MoveDown",
+      "name": "Move Down",
+      "description": "Move the focused window to the bottom of the screen.",
+      "icon": "font_a-MoveDown",
+      "type": "command"
+    },
+    {
+      "id": "MoveLeft",
+      "name": "Move Left",
+      "description": "Move the focused window to the left edge of the screen.",
+      "icon": "font_a-MoveLeft",
+      "type": "command"
+    },
+    {
+      "id": "MoveRight",
+      "name": "Move Right",
+      "description": "Move the focused window to the right edge of the screen.",
+      "icon": "font_a-MoveRight",
+      "type": "command"
+    },
+    {
+      "id": "NextDesktop",
+      "name": "Next Desktop",
+      "description": "Move the focused window to the next desktop.",
+      "icon": "font_a-NextDesktop",
+      "type": "command"
+    },
+    {
+      "id": "PreviousDesktop",
+      "name": "Previous Desktop",
+      "description": "Move the focused window to the previous desktop.",
+      "icon": "font_a-PreviousDesktop",
+      "type": "command"
+    },
+    {
+      "id": "NextDisplay",
+      "name": "Next Display",
+      "description": "Move the focused window to the next display.",
+      "icon": "font_a-NextDisplay",
+      "type": "command"
+    },
+    {
+      "id": "PreviousDisplay",
+      "name": "Previous Display",
+      "description": "Move the focused window to the previous display.",
+      "icon": "font_a-PreviousDisplay",
+      "type": "command"
+    },
+    {
+      "id": "Restore",
+      "name": "Restore",
+      "description": "Restore the focused window to its last position.",
+      "icon": "font_Restore",
+      "type": "command"
+    },
+    {
+      "id": "ToggleFullscreen",
+      "name": "Toggle Fullscreen",
+      "description": "Toggle fullscreen mode.",
+      "icon": "font_a-ToggleFullscreen",
+      "type": "command"
+    }
+  ]
+}

src-tauri/src/extension/built_in/window_management/search_source.rs

@@ -0,0 +1,138 @@
+use super::EXTENSION_ID;
+use super::EXTENSION_NAME_LOWERCASE;
+use crate::common::document::{DataSourceReference, Document};
+use crate::common::{
+    error::SearchError,
+    search::{QueryResponse, QuerySource, SearchQuery},
+    traits::SearchSource,
+};
+use crate::extension::built_in::{get_built_in_extension_directory, load_extension_from_json_file};
+use crate::extension::{ExtensionType, LOCAL_QUERY_SOURCE_TYPE, calculate_text_similarity};
+use async_trait::async_trait;
+use hostname;
+use tauri::AppHandle;
+
+/// A search source to allow users to search WM actions.
+pub(crate) struct WindowManagementSearchSource;
+
+#[async_trait]
+impl SearchSource for WindowManagementSearchSource {
+    fn get_type(&self) -> QuerySource {
+        QuerySource {
+            r#type: LOCAL_QUERY_SOURCE_TYPE.into(),
+            name: hostname::get()
+                .unwrap_or(EXTENSION_ID.into())
+                .to_string_lossy()
+                .into(),
+            id: EXTENSION_ID.into(),
+        }
+    }
+
+    async fn search(
+        &self,
+        tauri_app_handle: AppHandle,
+        query: SearchQuery,
+    ) -> Result<QueryResponse, SearchError> {
+        let Some(query_string) = query.query_strings.get("query") else {
+            return Ok(QueryResponse {
+                source: self.get_type(),
+                hits: Vec::new(),
+                total_hits: 0,
+            });
+        };
+        let from = usize::try_from(query.from).expect("from too big");
+        let size = usize::try_from(query.size).expect("size too big");
+
+        let query_string = query_string.trim();
+        if query_string.is_empty() {
+            return Ok(QueryResponse {
+                source: self.get_type(),
+                hits: Vec::new(),
+                total_hits: 0,
+            });
+        }
+        let query_string_lowercase = query_string.to_lowercase();
+
+        let extension = load_extension_from_json_file(
+            &get_built_in_extension_directory(&tauri_app_handle),
+            super::EXTENSION_ID,
+        )
+        .map_err(SearchError::InternalError)?;
+        let commands = extension.commands.expect("this extension has commands");
+
+        let mut hits: Vec<(Document, f64)> = Vec::new();
+
+        // We know they are all commands
+        let command_type_string = ExtensionType::Command.to_string();
+        for command in commands.iter().filter(|ext| ext.enabled) {
+            let score = {
+                let mut score = 0_f64;
+
+                if let Some(name_score) =
+                    calculate_text_similarity(&query_string_lowercase, &command.name.to_lowercase())
+                {
+                    score += name_score;
+                }
+
+                if let Some(ref alias) = command.alias {
+                    if let Some(alias_score) =
+                        calculate_text_similarity(&query_string_lowercase, &alias.to_lowercase())
+                    {
+                        score += alias_score;
+                    }
+                }
+
+                // An "extension" type extension should return all its
+                // sub-extensions when the query string matches its name.
+                // To do this, we score the extension name and take that
+                // into account.
+                if let Some(main_extension_score) =
+                    calculate_text_similarity(&query_string_lowercase, &EXTENSION_NAME_LOWERCASE)
+                {
+                    score += main_extension_score;
+                }
+
+                score
+            };
+
+            if score > 0.0 {
+                let on_opened = super::on_opened::on_opened(&command.id);
+                let url = on_opened.url();
+
+                let document = Document {
+                    id: command.id.clone(),
+                    title: Some(command.name.clone()),
+                    icon: Some(command.icon.clone()),
+                    on_opened: Some(on_opened),
+                    url: Some(url),
+                    category: Some(command_type_string.clone()),
+                    source: Some(DataSourceReference {
+                        id: Some(command_type_string.clone()),
+                        name: Some(command_type_string.clone()),
+                        icon: None,
+                        r#type: Some(command_type_string.clone()),
+                    }),
+
+                    ..Default::default()
+                };
+
+                hits.push((document, score));
+            }
+        }
+
+        hits.sort_by(|(_, score_a), (_, score_b)| {
+            score_a
+                .partial_cmp(&score_b)
+                .expect("expect no NAN/INFINITY/...")
+        });
+
+        let total_hits = hits.len();
+        let from_size_applied = hits.into_iter().skip(from).take(size).collect();
+
+        Ok(QueryResponse {
+            source: self.get_type(),
+            hits: from_size_applied,
+            total_hits,
+        })
+    }
+}

src-tauri/src/extension/mod.rs

@@ -1,10 +1,14 @@
+pub(crate) mod api;
 pub(crate) mod built_in;
 pub(crate) mod third_party;
 
+use crate::common::document::ExtensionOnOpened;
+use crate::common::document::ExtensionOnOpenedType;
 use crate::common::document::OnOpened;
 use crate::common::register::SearchSourceRegistry;
 use crate::util::platform::Platform;
 use anyhow::Context;
+use bitflags::bitflags;
 use borrowme::{Borrow, ToOwned};
 use derive_more::Display;
 use indexmap::IndexMap;
@@ -76,11 +80,14 @@ pub struct Extension {
     #[serde(skip_serializing_if = "Option::is_none")]
     quicklink: Option<Quicklink>,
 
-    // If this extension is of type Group or Extension, then it behaves like a
-    // directory, i.e., it could contain sub items.
+    /*
+     * If this extension is of type Group or Extension, then it behaves like a
+     * directory, i.e., it could contain sub items.
+     */
     commands: Option<Vec<Extension>>,
     scripts: Option<Vec<Extension>>,
     quicklinks: Option<Vec<Extension>>,
+    views: Option<Vec<Extension>>,
 
     /// The alias of the extension.
     ///
@@ -99,14 +106,39 @@ pub struct Extension {
 
     /// Extension settings
     #[serde(skip_serializing_if = "Option::is_none")]
-    settings: Option<Json>,
+    settings: Option<ExtensionSettings>,
 
-    // We do not care about these fields, just take it regardless of what it is.
+    /// For View extensions, path to the HTML file/page that coco will load
+    /// and render. Otherwise, `None`.
+    page: Option<String>,
+
+    ui: Option<ViewExtensionUISettings>,
+
+    /// Permission that this extension requires.
+    permission: Option<ExtensionPermission>,
+
+    /*
+     * The following fields are currently useless to us but are needed by our
+     * extension store.
+     *
+     * Since we do not use them, just accept them regardless of what they are.
+     */
     screenshots: Option<Json>,
     url: Option<Json>,
     version: Option<Json>,
 }
 
+/// Settings that control the built-in UI Components
+#[derive(Debug, Deserialize, Serialize, Clone, PartialEq)]
+pub(crate) struct ViewExtensionUISettings {
+    /// Show the search bar
+    search_bar: bool,
+    /// Show the filter bar
+    filter_bar: bool,
+    /// Show the footer
+    footer: bool,
+}
+
 /// Bundle ID uniquely identifies an extension.
 #[derive(Debug, Deserialize, Serialize, PartialEq, Clone)]
 pub(crate) struct ExtensionBundleId {
@@ -164,37 +196,62 @@ impl<'ext> PartialEq<ExtensionBundleId> for ExtensionBundleIdBorrowed<'ext> {
 }
 
 impl Extension {
-    /// WARNING: the bundle ID returned from this function always has its `sub_extension_id`
-    /// set to `None`, this may not be what you want.
-    pub(crate) fn bundle_id_borrowed(&self) -> ExtensionBundleIdBorrowed<'_> {
-        ExtensionBundleIdBorrowed {
-            developer: self.developer.as_deref(),
-            extension_id: &self.id,
-            sub_extension_id: None,
-        }
-    }
-
     /// Whether this extension could be searched.
     pub(crate) fn searchable(&self) -> bool {
         self.on_opened().is_some()
     }
+
     /// Return what will happen when we open this extension.
     ///
     /// `None` if it cannot be opened.
     pub(crate) fn on_opened(&self) -> Option<OnOpened> {
+        let settings = self.settings.clone();
+        let permission = self.permission.clone();
+
         match self.r#type {
-            ExtensionType::Group => None,
-            ExtensionType::Extension => None,
-            ExtensionType::Command => Some(OnOpened::Command {
-                action: self.action.clone().unwrap_or_else(|| {
-                  panic!(
-                    "Command extension [{}]'s [action] field is not set, something wrong with your extension validity check", self.id
-                  )
-                }),
-            }),
-            ExtensionType::Application => Some(OnOpened::Application {
-                app_path: self.id.clone(),
-            }),
+            // This function, at the time of writing this comment, is primarily
+            // used by third-party extensions.
+            //
+            // Built-in extensions don't use this as they are technically not
+            // "struct Extension"s.  Typically, they directly construct a
+            // "struct Document" from their own type.
+            ExtensionType::Calculator => unreachable!("this is handled by frontend"),
+            ExtensionType::AiExtension => unreachable!(
+                "currently, all AI extensions we have are non-searchable, so we won't open them"
+            ),
+            ExtensionType::Application => {
+                // We can have a impl like:
+                //
+                // Some(OnOpened::Application { app_path: self.id.clone() })
+                //
+                // but it won't be used.
+
+                unreachable!(
+                    "Applications are not \"struct Extension\" under the hood, they won't call this method"
+                )
+            }
+
+            // These 2 types of extensions cannot be opened
+            ExtensionType::Group => return None,
+            ExtensionType::Extension => return None,
+
+            ExtensionType::Command => {
+                let ty = ExtensionOnOpenedType::Command {
+                  action: self.action.clone().unwrap_or_else(|| {
+                    panic!(
+                      "Command extension [{}]'s [action] field is not set, something wrong with your extension validity check", self.id
+                    )
+                  }),
+              };
+
+                let extension_on_opened = ExtensionOnOpened {
+                    ty,
+                    settings,
+                    permission,
+                };
+
+                Some(OnOpened::Extension(extension_on_opened))
+            }
             ExtensionType::Quicklink => {
                 let quicklink = self.quicklink.clone().unwrap_or_else(|| {
                   panic!(
@@ -202,15 +259,37 @@ impl Extension {
                   )
                 });
 
-                Some(OnOpened::Quicklink{
-                  link: quicklink.link,
-                  open_with: quicklink.open_with,
-                })
+                let ty = ExtensionOnOpenedType::Quicklink {
+                    link: quicklink.link,
+                    open_with: quicklink.open_with,
+                };
+
+                let extension_on_opened = ExtensionOnOpened {
+                    ty,
+                    settings,
+                    permission,
+                };
+
+                Some(OnOpened::Extension(extension_on_opened))
             }
             ExtensionType::Script => todo!("not supported yet"),
             ExtensionType::Setting => todo!("not supported yet"),
-            ExtensionType::Calculator => None,
-            ExtensionType::AiExtension => None,
+            ExtensionType::View => {
+                let page = self.page.as_ref().unwrap_or_else(|| {
+                    panic!("View extension [{}]'s [page] field is not set, something wrong with your extension validity check", self.id);
+                }).clone();
+                let ui = self.ui.clone();
+
+                let extension_on_opened_type = ExtensionOnOpenedType::View { page, ui };
+                let extension_on_opened = ExtensionOnOpened {
+                    ty: extension_on_opened_type,
+                    settings,
+                    permission,
+                };
+                let on_opened = OnOpened::Extension(extension_on_opened);
+
+                Some(on_opened)
+            }
         }
     }
 
@@ -234,6 +313,11 @@ impl Extension {
                 return Some(sub_ext);
             }
         }
+        if let Some(ref views) = self.views {
+            if let Some(sub_ext) = views.iter().find(|view| view.id == sub_extension_id) {
+                return Some(sub_ext);
+            }
+        }
 
         None
     }
@@ -264,6 +348,11 @@ impl Extension {
                 return Some(sub_ext);
             }
         }
+        if let Some(ref mut views) = self.views {
+            if let Some(sub_ext) = views.iter_mut().find(|view| view.id == sub_extension_id) {
+                return Some(sub_ext);
+            }
+        }
 
         None
     }
@@ -341,7 +430,7 @@ impl QuicklinkLink {
     /// if any.
     pub(crate) fn concatenate_url(
         &self,
-        user_supplied_args: &Option<HashMap<String, String>>,
+        user_supplied_args: &Option<HashMap<String, Json>>,
     ) -> String {
         let mut out = String::new();
         for component in self.components.iter() {
@@ -353,20 +442,23 @@ impl QuicklinkLink {
                     argument_name,
                     default,
                 } => {
-                    let opt_argument_value = {
+                    let opt_argument_value: Option<&str> = {
                         let user_supplied_arg = user_supplied_args
                             .as_ref()
                             .and_then(|map| map.get(argument_name.as_str()));
 
                         if user_supplied_arg.is_some() {
-                            user_supplied_arg
+                            user_supplied_arg.map(|json| {
+                                json.as_str()
+                                    .expect("quicklink should provide string arguments")
+                            })
                         } else {
-                            default.as_ref()
+                            default.as_deref()
                         }
                     };
 
                     let argument_value_str = match opt_argument_value {
-                        Some(str) => str.as_str(),
+                        Some(str) => str,
                         // None => an empty string
                         None => "",
                     };
@@ -473,6 +565,8 @@ pub enum ExtensionType {
     Calculator,
     #[display("AI Extension")]
     AiExtension,
+    #[display("View")]
+    View,
 }
 
 impl ExtensionType {
@@ -504,6 +598,9 @@ fn filter_out_extensions(
                 if let Some(ref mut quicklinks) = extension.quicklinks {
                     quicklinks.retain(|link| link.enabled);
                 }
+                if let Some(ref mut views) = extension.views {
+                    views.retain(|link| link.enabled);
+                }
             }
         }
     }
@@ -532,6 +629,9 @@ fn filter_out_extensions(
                 if let Some(ref mut quicklinks) = extension.quicklinks {
                     quicklinks.retain(|link| link.r#type == extension_type);
                 }
+                if let Some(ref mut views) = extension.views {
+                    views.retain(|link| link.r#type == extension_type);
+                }
             }
         }
 
@@ -582,15 +682,14 @@ fn filter_out_extensions(
                 if let Some(ref mut quicklinks) = extension.quicklinks {
                     quicklinks.retain(&match_closure);
                 }
+                if let Some(ref mut views) = extension.views {
+                    views.retain(&match_closure);
+                }
             }
         }
     }
 }
 
-/// Return value:
-///
-/// * boolean: indicates if we found any invalid extensions
-/// * Vec<Extension>: loaded extensions
 #[tauri::command]
 pub(crate) async fn list_extensions(
     tauri_app_handle: AppHandle,
@@ -598,16 +697,11 @@ pub(crate) async fn list_extensions(
     extension_type: Option<ExtensionType>,
     list_enabled: bool,
 ) -> Result<Vec<Extension>, String> {
-    log::trace!("loading extensions");
-
-    let third_party_dir = third_party::get_third_party_extension_directory(&tauri_app_handle);
-    if !third_party_dir.try_exists().map_err(|e| e.to_string())? {
-        tokio::fs::create_dir_all(&third_party_dir)
-            .await
-            .map_err(|e| e.to_string())?;
-    }
-    let mut third_party_extensions =
-        third_party::list_third_party_extensions(&third_party_dir).await?;
+    let mut third_party_extensions = third_party::THIRD_PARTY_EXTENSIONS_SEARCH_SOURCE
+        .get()
+        .expect("global third party extension search source not set")
+        .extensions_snapshot()
+        .await;
 
     let built_in_extensions = built_in::list_built_in_extensions(&tauri_app_handle).await?;
 
@@ -661,31 +755,54 @@ pub(crate) async fn list_extensions(
     Ok(extensions)
 }
 
-pub(crate) async fn init_extensions(
-    tauri_app_handle: AppHandle,
-    mut extensions: Vec<Extension>,
-) -> Result<(), String> {
+/// Initialize all the things that are related to extensions.
+pub(crate) async fn init_extensions(tauri_app_handle: &AppHandle) -> Result<(), String> {
     log::trace!("initializing extensions");
-
     let search_source_registry_tauri_state = tauri_app_handle.state::<SearchSourceRegistry>();
 
+    // Third-party extensions
+    //
+    // 1. Init the global search source variable
+    // 2. Init the extensions in search source
+    // 3. Register the search source
+    let third_party_dir = third_party::get_third_party_extension_directory(&tauri_app_handle);
+    if !third_party_dir.try_exists().map_err(|e| e.to_string())? {
+        tokio::fs::create_dir_all(&third_party_dir)
+            .await
+            .map_err(|e| e.to_string())?;
+    }
+    let extensions =
+        third_party::load_third_party_extensions_from_directory(&third_party_dir).await?;
+    let search_source = third_party::ThirdPartyExtensionsSearchSource::new(extensions);
+    search_source.init(&tauri_app_handle).await.unwrap();
+    THIRD_PARTY_EXTENSIONS_SEARCH_SOURCE
+        .set(search_source.clone())
+        .unwrap_or_else(|_already_set| {
+            panic!(
+                "while trying to set the global third party extension search source variable {}, we found it is already set, which should not happen",
+                "THIRD_PARTY_EXTENSIONS_SEARCH_SOURCE"
+            )
+        });
+    search_source_registry_tauri_state
+        .register_source(search_source)
+        .await;
+
+    // Extension store
+    search_source_registry_tauri_state
+        .register_source(third_party::install::store::ExtensionStore)
+        .await;
+
+    // Built-in extensions
+
+    // Built-in extension: Application
     built_in::application::ApplicationSearchSource::prepare_index_and_store(
         tauri_app_handle.clone(),
     )
     .await?;
 
-    // extension store
-    search_source_registry_tauri_state
-        .register_source(third_party::install::store::ExtensionStore)
-        .await;
-
     // Init the built-in enabled extensions
-    for built_in_extension in extensions
-        .extract_if(.., |ext| {
-            built_in::is_extension_built_in(&ext.bundle_id_borrowed())
-        })
-        .filter(|ext| ext.enabled)
-    {
+    let built_in_extensions = built_in::list_built_in_extensions(&tauri_app_handle).await?;
+    for built_in_extension in built_in_extensions.iter().filter(|ext| ext.enabled) {
         built_in::init_built_in_extension(
             &tauri_app_handle,
             &built_in_extension,
@@ -694,18 +811,6 @@ pub(crate) async fn init_extensions(
         .await?;
     }
 
-    // Now the third-party extensions
-    let third_party_search_source = third_party::ThirdPartyExtensionsSearchSource::new(extensions);
-    third_party_search_source.init(&tauri_app_handle).await?;
-    let third_party_search_source_clone = third_party_search_source.clone();
-    // Set the global search source so that we can access it in `#[tauri::command]`s
-    // ignore the result because this function will be invoked twice, which
-    // means this global variable will be set twice.
-    let _ = THIRD_PARTY_EXTENSIONS_SEARCH_SOURCE.set(third_party_search_source_clone);
-    search_source_registry_tauri_state
-        .register_source(third_party_search_source)
-        .await;
-
     Ok(())
 }
 
@@ -747,7 +852,7 @@ pub(crate) async fn set_extension_alias(
     let bundle_id_borrowed = bundle_id.borrow();
 
     if built_in::is_extension_built_in(&bundle_id_borrowed) {
-        built_in::set_built_in_extension_alias(&tauri_app_handle, &bundle_id_borrowed, &alias);
+        built_in::set_built_in_extension_alias(&tauri_app_handle, &bundle_id_borrowed, &alias)?;
         return Ok(());
     }
     third_party::THIRD_PARTY_EXTENSIONS_SEARCH_SOURCE.get().expect("global third party search source not set, looks like init_extensions() has not been executed").set_extension_alias(&tauri_app_handle, &bundle_id_borrowed, &alias).await
@@ -854,6 +959,63 @@ pub(crate) fn canonicalize_relative_icon_path(
         }
     }
 
+    if let Some(views) = &mut extension.views {
+        for view in views {
+            _canonicalize_relative_icon_path(extension_dir, view)?;
+        }
+    }
+
+    Ok(())
+}
+
+pub(crate) fn canonicalize_relative_page_path(
+    extension_dir: &Path,
+    extension: &mut Extension,
+) -> Result<(), String> {
+    fn _canonicalize_view_extension_page_path(
+        extension_dir: &Path,
+        extension: &mut Extension,
+    ) -> Result<(), String> {
+        let page = extension
+            .page
+            .as_ref()
+            .expect("this should be invoked on a View extension");
+
+        // Skip HTTP links
+        if let Ok(url) = url::Url::parse(page)
+            && ["http", "https"].contains(&url.scheme())
+        {
+            return Ok(());
+        }
+
+        let page_path = Path::new(page);
+
+        if page_path.is_relative() {
+            let absolute_page_path = extension_dir.join(page_path);
+
+            if absolute_page_path.try_exists().map_err(|e| e.to_string())? {
+                extension.page = Some(
+                    absolute_page_path
+                        .into_os_string()
+                        .into_string()
+                        .expect("path should be UTF-8 encoded"),
+                );
+            }
+        }
+
+        Ok(())
+    }
+
+    if extension.r#type == ExtensionType::View {
+        _canonicalize_view_extension_page_path(extension_dir, extension)?;
+    } else if extension.r#type.contains_sub_items()
+        && let Some(ref mut views) = extension.views
+    {
+        for view in views {
+            _canonicalize_view_extension_page_path(extension_dir, view)?;
+        }
+    }
+
     Ok(())
 }
 
@@ -906,6 +1068,14 @@ fn alter_extension_json_file(
             }
         }
 
+        // Search in views
+        if let Some(ref mut views) = root_extension.views {
+            if let Some(view) = views.iter_mut().find(|v| v.id == sub_extension_id) {
+                how(view)?;
+                return Ok(());
+            }
+        }
+
         Err(format!(
             "extension [{:?}] not found in {:?}",
             bundle_id, root_extension
@@ -1078,6 +1248,126 @@ fn parse_dynamic_placeholder(content: &str) -> Result<QuicklinkLinkComponent, St
     })
 }
 
+/// Built-in extension settings
+#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
+pub(crate) struct ExtensionSettings {
+    /// If set, Coco main window would hide before opening this document/e
+    pub(crate) hide_before_open: Option<bool>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
+pub(crate) struct ExtensionPermission {
+    fs: Option<Vec<ExtensionFileSystemPermission>>,
+    http: Option<Vec<ExtensionHttpPermission>>,
+    api: Option<Vec<String>>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
+pub(crate) struct ExtensionFileSystemPermission {
+    pub(crate) path: String,
+    pub(crate) access: FileSystemAccess,
+}
+
+bitflags! {
+    #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+    pub(crate) struct FileSystemAccess: u8 {
+        const READ = 0b00000001;
+        const WRITE = 0b00000010;
+    }
+}
+
+impl Serialize for FileSystemAccess {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: serde::Serializer,
+    {
+        let mut access_vec = Vec::new();
+        if self.contains(FileSystemAccess::READ) {
+            access_vec.push("read");
+        }
+        if self.contains(FileSystemAccess::WRITE) {
+            access_vec.push("write");
+        }
+        access_vec.serialize(serializer)
+    }
+}
+
+impl<'de> Deserialize<'de> for FileSystemAccess {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+    where
+        D: serde::Deserializer<'de>,
+    {
+        let access_vec: Vec<String> = Vec::deserialize(deserializer)?;
+        let mut access = FileSystemAccess::empty();
+
+        for access_type in access_vec {
+            match access_type.as_str() {
+                "read" => access |= FileSystemAccess::READ,
+                "write" => access |= FileSystemAccess::WRITE,
+                _ => {
+                    return Err(serde::de::Error::unknown_variant(
+                        access_type.as_str(),
+                        &["read", "write"],
+                    ));
+                }
+            }
+        }
+
+        Ok(access)
+    }
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
+pub(crate) struct ExtensionHttpPermission {
+    pub(crate) host: String,
+}
+
+/// Calculates a similarity score between a query and a text, aiming for a [0, 1] range.
+/// Assumes query and text are already lowercased.
+///
+/// Used in extension_to_hit().
+fn calculate_text_similarity(query: &str, text: &str) -> Option<f64> {
+    if query.is_empty() || text.is_empty() {
+        return None;
+    }
+
+    if text == query {
+        return Some(1.0); // Perfect match
+    }
+
+    let query_len = query.len() as f64;
+    let text_len = text.len() as f64;
+    let ratio = query_len / text_len;
+    let mut score: f64 = 0.0;
+
+    // Case 1: Text starts with the query (prefix match)
+    // Score: base 0.5, bonus up to 0.4 for how much of `text` is covered by `query`. Max 0.9.
+    if text.starts_with(query) {
+        score = score.max(0.5 + 0.4 * ratio);
+    }
+
+    // Case 2: Text contains the query (substring match, not necessarily prefix)
+    // Score: base 0.3, bonus up to 0.3. Max 0.6.
+    // `score.max` ensures that if it's both a prefix and contains, the higher score (prefix) is taken.
+    if text.contains(query) {
+        score = score.max(0.3 + 0.3 * ratio);
+    }
+
+    // Case 3: Fallback for "all query characters exist in text" (order-independent)
+    if score < 0.2 {
+        if query.chars().all(|c_q| text.contains(c_q)) {
+            score = score.max(0.15); // Fixed low score for this weaker match type
+        }
+    }
+
+    if score > 0.0 {
+        // Cap non-perfect matches slightly below 1.0 to make perfect (1.0) distinct.
+        Some(score.min(0.95))
+    } else {
+        None
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -1476,7 +1766,7 @@ mod tests {
             ],
         };
         let mut user_args = HashMap::new();
-        user_args.insert("other_param".to_string(), "value".to_string());
+        user_args.insert("other_param".to_string(), Json::String("value".to_string()));
         let result = link.concatenate_url(&Some(user_args));
         assert_eq!(result, "https://www.google.com/search?q=");
     }
@@ -1513,7 +1803,7 @@ mod tests {
             ],
         };
         let mut user_args = HashMap::new();
-        user_args.insert("other_param".to_string(), "value".to_string());
+        user_args.insert("other_param".to_string(), Json::String("value".to_string()));
         let result = link.concatenate_url(&Some(user_args));
         assert_eq!(result, "https://www.google.com/search?q=rust");
     }
@@ -1536,7 +1826,7 @@ mod tests {
             ],
         };
         let mut user_args = HashMap::new();
-        user_args.insert("query".to_string(), "python".to_string());
+        user_args.insert("query".to_string(), Json::String("python".to_string()));
         let result = link.concatenate_url(&Some(user_args));
         assert_eq!(result, "https://www.google.com/search?q=python");
     }
@@ -1548,4 +1838,234 @@ mod tests {
         let result = link.concatenate_url(&None);
         assert_eq!(result, "");
     }
+
+    // Helper function for approximate floating point comparison
+    fn approx_eq(a: f64, b: f64) -> bool {
+        (a - b).abs() < 1e-10
+    }
+
+    #[test]
+    fn test_empty_strings() {
+        assert_eq!(calculate_text_similarity("", "text"), None);
+        assert_eq!(calculate_text_similarity("query", ""), None);
+        assert_eq!(calculate_text_similarity("", ""), None);
+    }
+
+    #[test]
+    fn test_perfect_match() {
+        assert_eq!(calculate_text_similarity("text", "text"), Some(1.0));
+        assert_eq!(calculate_text_similarity("a", "a"), Some(1.0));
+    }
+
+    #[test]
+    fn test_prefix_match() {
+        // For "te" and "text":
+        // score = 0.5 + 0.4 * (2/4) = 0.5 + 0.2 = 0.7
+        let score = calculate_text_similarity("te", "text").unwrap();
+        assert!(approx_eq(score, 0.7));
+
+        // For "tex" and "text":
+        // score = 0.5 + 0.4 * (3/4) = 0.5 + 0.3 = 0.8
+        let score = calculate_text_similarity("tex", "text").unwrap();
+        assert!(approx_eq(score, 0.8));
+    }
+
+    #[test]
+    fn test_substring_match() {
+        // For "ex" and "text":
+        // score = 0.3 + 0.3 * (2/4) = 0.3 + 0.15 = 0.45
+        let score = calculate_text_similarity("ex", "text").unwrap();
+        assert!(approx_eq(score, 0.45));
+
+        // Prefix should score higher than substring
+        assert!(
+            calculate_text_similarity("te", "text").unwrap()
+                > calculate_text_similarity("ex", "text").unwrap()
+        );
+    }
+
+    #[test]
+    fn test_character_presence() {
+        // Characters present but not in sequence
+        // "tac" in "contact" - not a substring, but all chars exist
+        let score = calculate_text_similarity("tac", "contact").unwrap();
+        assert!(approx_eq(0.3 + 0.3 * (3.0 / 7.0), score));
+
+        assert!(calculate_text_similarity("ac", "contact").is_some());
+
+        // Should not apply if some characters are missing
+        assert_eq!(calculate_text_similarity("xyz", "contact"), None);
+    }
+
+    #[test]
+    fn test_combined_scenarios() {
+        // Test that character presence fallback doesn't override higher scores
+        // "tex" is a prefix of "text" with score 0.8
+        let score = calculate_text_similarity("tex", "text").unwrap();
+        assert!(approx_eq(score, 0.8));
+
+        // Test a case where the characters exist but it's already a substring
+        // "act" is a substring of "contact" with score > 0.2, so fallback won't apply
+        let expected_score = 0.3 + 0.3 * (3.0 / 7.0);
+        let actual_score = calculate_text_similarity("act", "contact").unwrap();
+        assert!(approx_eq(actual_score, expected_score));
+    }
+
+    #[test]
+    fn test_no_similarity() {
+        assert_eq!(calculate_text_similarity("xyz", "test"), None);
+    }
+
+    #[test]
+    fn test_score_capping() {
+        // Use a long query that's a prefix of a slightly longer text
+        let long_text = "abcdefghijklmnopqrstuvwxyz";
+        let long_prefix = "abcdefghijklmnopqrstuvwxy"; // All but last letter
+
+        // Expected score would be 0.5 + 0.4 * (25/26) = 0.5 + 0.385 = 0.885
+        let expected_score = 0.5 + 0.4 * (25.0 / 26.0);
+        let actual_score = calculate_text_similarity(long_prefix, long_text).unwrap();
+        assert!(approx_eq(actual_score, expected_score));
+
+        // Verify that non-perfect matches are capped at 0.95
+        assert!(calculate_text_similarity("almost", "almost perfect").unwrap() <= 0.95);
+    }
+
+    #[test]
+    fn test_filesystem_access_serialize_empty() {
+        let access = FileSystemAccess::empty();
+        let serialized = serde_json::to_string(&access).unwrap();
+        assert_eq!(serialized, "[]");
+    }
+
+    #[test]
+    fn test_filesystem_access_serialize_read_only() {
+        let access = FileSystemAccess::READ;
+        let serialized = serde_json::to_string(&access).unwrap();
+        assert_eq!(serialized, r#"["read"]"#);
+    }
+
+    #[test]
+    fn test_filesystem_access_serialize_write_only() {
+        let access = FileSystemAccess::WRITE;
+        let serialized = serde_json::to_string(&access).unwrap();
+        assert_eq!(serialized, r#"["write"]"#);
+    }
+
+    #[test]
+    fn test_filesystem_access_serialize_read_write() {
+        let access = FileSystemAccess::READ | FileSystemAccess::WRITE;
+        let serialized = serde_json::to_string(&access).unwrap();
+        // The order should be consistent based on our implementation (read first, then write)
+        assert_eq!(serialized, r#"["read","write"]"#);
+    }
+
+    #[test]
+    fn test_filesystem_access_deserialize_empty() {
+        let json = "[]";
+        let access: FileSystemAccess = serde_json::from_str(json).unwrap();
+        assert_eq!(access, FileSystemAccess::empty());
+        assert!(!access.contains(FileSystemAccess::READ));
+        assert!(!access.contains(FileSystemAccess::WRITE));
+    }
+
+    #[test]
+    fn test_filesystem_access_deserialize_read_only() {
+        let json = r#"["read"]"#;
+        let access: FileSystemAccess = serde_json::from_str(json).unwrap();
+        assert_eq!(access, FileSystemAccess::READ);
+        assert!(access.contains(FileSystemAccess::READ));
+        assert!(!access.contains(FileSystemAccess::WRITE));
+    }
+
+    #[test]
+    fn test_filesystem_access_deserialize_write_only() {
+        let json = r#"["write"]"#;
+        let access: FileSystemAccess = serde_json::from_str(json).unwrap();
+        assert_eq!(access, FileSystemAccess::WRITE);
+        assert!(!access.contains(FileSystemAccess::READ));
+        assert!(access.contains(FileSystemAccess::WRITE));
+    }
+
+    #[test]
+    fn test_filesystem_access_deserialize_read_write() {
+        let json = r#"["read", "write"]"#;
+        let access: FileSystemAccess = serde_json::from_str(json).unwrap();
+        assert_eq!(access, FileSystemAccess::READ | FileSystemAccess::WRITE);
+        assert!(access.contains(FileSystemAccess::READ));
+        assert!(access.contains(FileSystemAccess::WRITE));
+    }
+
+    #[test]
+    fn test_filesystem_access_deserialize_write_read_order() {
+        // Test that order doesn't matter during deserialization
+        let json = r#"["write", "read"]"#;
+        let access: FileSystemAccess = serde_json::from_str(json).unwrap();
+        assert_eq!(access, FileSystemAccess::READ | FileSystemAccess::WRITE);
+        assert!(access.contains(FileSystemAccess::READ));
+        assert!(access.contains(FileSystemAccess::WRITE));
+    }
+
+    #[test]
+    fn test_filesystem_access_deserialize_duplicate_values() {
+        // Test that duplicate values don't cause issues
+        let json = r#"["read", "read", "write"]"#;
+        let access: FileSystemAccess = serde_json::from_str(json).unwrap();
+        assert_eq!(access, FileSystemAccess::READ | FileSystemAccess::WRITE);
+        assert!(access.contains(FileSystemAccess::READ));
+        assert!(access.contains(FileSystemAccess::WRITE));
+    }
+
+    #[test]
+    fn test_filesystem_access_deserialize_invalid_value() {
+        let json = r#"["invalid"]"#;
+        let result: Result<FileSystemAccess, _> = serde_json::from_str(json);
+        assert!(result.is_err());
+
+        let error_msg = result.unwrap_err().to_string();
+        assert!(error_msg.contains("invalid"));
+        assert!(error_msg.contains("read") && error_msg.contains("write"));
+    }
+
+    #[test]
+    fn test_filesystem_access_deserialize_mixed_valid_invalid() {
+        let json = r#"["read", "invalid", "write"]"#;
+        let result: Result<FileSystemAccess, _> = serde_json::from_str(json);
+        assert!(result.is_err());
+
+        let error_msg = result.unwrap_err().to_string();
+        assert!(error_msg.contains("invalid"));
+    }
+
+    #[test]
+    fn test_filesystem_access_round_trip_empty() {
+        let original = FileSystemAccess::empty();
+        let serialized = serde_json::to_string(&original).unwrap();
+        let deserialized: FileSystemAccess = serde_json::from_str(&serialized).unwrap();
+        assert_eq!(original, deserialized);
+    }
+
+    #[test]
+    fn test_filesystem_access_round_trip_read() {
+        let original = FileSystemAccess::READ;
+        let serialized = serde_json::to_string(&original).unwrap();
+        let deserialized: FileSystemAccess = serde_json::from_str(&serialized).unwrap();
+        assert_eq!(original, deserialized);
+    }
+
+    #[test]
+    fn test_filesystem_access_round_trip_write() {
+        let original = FileSystemAccess::WRITE;
+        let serialized = serde_json::to_string(&original).unwrap();
+        let deserialized: FileSystemAccess = serde_json::from_str(&serialized).unwrap();
+        assert_eq!(original, deserialized);
+    }
+
+    #[test]
+    fn test_filesystem_access_round_trip_read_write() {
+        let original = FileSystemAccess::READ | FileSystemAccess::WRITE;
+        let serialized = serde_json::to_string(&original).unwrap();
+        let deserialized: FileSystemAccess = serde_json::from_str(&serialized).unwrap();
+        assert_eq!(original, deserialized);
+    }
 }

src-tauri/src/extension/third_party/check.rs

@@ -47,7 +47,11 @@ pub(crate) fn general_check(extension: &Extension) -> Result<(), String> {
         Some(ref v) => v.as_slice(),
         None => &[],
     };
-    let sub_extensions = [commands, scripts, quicklinks].concat();
+    let views = match extension.views {
+        Some(ref v) => v.as_slice(),
+        None => &[],
+    };
+    let sub_extensions = [commands, scripts, quicklinks, views].concat();
     let mut sub_extension_ids = HashSet::new();
 
     for sub_extension in sub_extensions.iter() {
@@ -93,7 +97,10 @@ fn check_main_extension_only(extension: &Extension) -> Result<(), String> {
         }
     }
 
-    if extension.commands.is_some() || extension.scripts.is_some() || extension.quicklinks.is_some()
+    if extension.commands.is_some()
+        || extension.scripts.is_some()
+        || extension.quicklinks.is_some()
+        || extension.views.is_some()
     {
         if extension.r#type != ExtensionType::Group && extension.r#type != ExtensionType::Extension
         {
@@ -104,6 +111,16 @@ fn check_main_extension_only(extension: &Extension) -> Result<(), String> {
         }
     }
 
+    if extension.settings.is_some() {
+        // Sub-extensions are all searchable, so this check is only for main extensions.
+        if !extension.searchable() {
+            return Err(format!(
+                "invalid extension {}, field [settings] is currently only allowed in searchable extension, this type of extension is not searchable [{}]",
+                extension.id, extension.r#type
+            ));
+        }
+    }
+
     Ok(())
 }
 
@@ -124,9 +141,10 @@ fn check_sub_extension_only(
     if sub_extension.commands.is_some()
         || sub_extension.scripts.is_some()
         || sub_extension.quicklinks.is_some()
+        || sub_extension.views.is_some()
     {
         return Err(format!(
-            "invalid sub-extension [{}-{}]: fields [commands/scripts/quicklinks] should not be set in sub-extensions",
+            "invalid sub-extension [{}-{}]: fields [commands/scripts/quicklinks/views] should not be set in sub-extensions",
             extension_id, sub_extension.id
         ));
     }
@@ -198,16 +216,47 @@ fn check_main_extension_or_sub_extension(
         ));
     }
 
+    // If field `page` is Some, then it should be a View
+    if extension.page.is_some() && extension.r#type != ExtensionType::View {
+        return Err(format!(
+            "invalid {}, field [page] is set for a non-View extension",
+            identifier
+        ));
+    }
+
+    if extension.r#type == ExtensionType::View && extension.page.is_none() {
+        return Err(format!(
+            "invalid {}, field [page] should be set for a View extension",
+            identifier
+        ));
+    }
+
+    // If field `ui` is Some, then it should be a View
+    if extension.ui.is_some() && extension.r#type != ExtensionType::View {
+        return Err(format!(
+            "invalid {}, field [ui] is set for a non-View extension",
+            identifier
+        ));
+    }
+
     Ok(())
 }
 
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::extension::{CommandAction, Quicklink, QuicklinkLink, QuicklinkLinkComponent};
+    use crate::extension::{
+        CommandAction, ExtensionSettings, Quicklink, QuicklinkLink, QuicklinkLinkComponent,
+    };
 
     /// Helper function to create a basic valid extension
     fn create_basic_extension(id: &str, extension_type: ExtensionType) -> Extension {
+        let page = if extension_type == ExtensionType::View {
+            Some("index.html".into())
+        } else {
+            None
+        };
+
         Extension {
             id: id.to_string(),
             name: "Test Extension".to_string(),
@@ -221,9 +270,13 @@ mod tests {
             commands: None,
             scripts: None,
             quicklinks: None,
+            views: None,
             alias: None,
             hotkey: None,
             enabled: true,
+            page,
+            ui: None,
+            permission: None,
             settings: None,
             screenshots: None,
             url: None,
@@ -309,6 +362,29 @@ mod tests {
                 .contains("only extension of type [Group] and [Extension] can have sub-extensions")
         );
     }
+
+    #[test]
+    fn test_non_searchable_extension_set_field_settings() {
+        let mut extension = create_basic_extension("test-group", ExtensionType::Group);
+        extension.settings = Some(ExtensionSettings {
+            hide_before_open: None,
+        });
+        let error_msg = general_check(&extension).unwrap_err();
+        assert!(
+            error_msg
+                .contains("field [settings] is currently only allowed in searchable extension")
+        );
+
+        let mut extension = create_basic_extension("test-extension", ExtensionType::Extension);
+        extension.settings = Some(ExtensionSettings {
+            hide_before_open: None,
+        });
+        let error_msg = general_check(&extension).unwrap_err();
+        assert!(
+            error_msg
+                .contains("field [settings] is currently only allowed in searchable extension")
+        );
+    }
     /* test_check_main_extension_only */
 
     /* test check_main_extension_or_sub_extension */
@@ -366,6 +442,36 @@ mod tests {
                 .contains("field [quicklink] is set for a non-Quicklink extension")
         );
     }
+
+    #[test]
+    fn test_view_must_have_page_field() {
+        let mut extension = create_basic_extension("test-view", ExtensionType::View);
+        // create_basic_extension() will set its page field if type is View, clear it
+        extension.page = None;
+
+        let result = general_check(&extension);
+        assert!(result.is_err());
+        assert!(
+            result
+                .unwrap_err()
+                .contains("field [page] should be set for a View extension")
+        );
+    }
+
+    #[test]
+    fn test_non_view_cannot_have_page_field() {
+        let mut extension = create_basic_extension("test-cmd", ExtensionType::Command);
+        extension.action = Some(create_command_action());
+        extension.page = Some("index.html".into());
+
+        let result = general_check(&extension);
+        assert!(result.is_err());
+        assert!(
+            result
+                .unwrap_err()
+                .contains("field [page] is set for a non-View extension")
+        );
+    }
     /* test check_main_extension_or_sub_extension */
 
     /* Test check_sub_extension_only */
@@ -431,11 +537,9 @@ mod tests {
 
         let result = general_check(&extension);
         assert!(result.is_err());
-        assert!(
-            result.unwrap_err().contains(
-                "fields [commands/scripts/quicklinks] should not be set in sub-extensions"
-            )
-        );
+        assert!(result.unwrap_err().contains(
+            "fields [commands/scripts/quicklinks/views] should not be set in sub-extensions"
+        ));
     }
     /* Test check_sub_extension_only */
 

src-tauri/src/extension/third_party/install/local_extension.rs

@@ -1,12 +1,14 @@
 use crate::extension::PLUGIN_JSON_FILE_NAME;
 use crate::extension::third_party::check::general_check;
 use crate::extension::third_party::install::{
-    filter_out_incompatible_sub_extensions, is_extension_installed,
+    filter_out_incompatible_sub_extensions, is_extension_installed, view_extension_convert_pages,
 };
 use crate::extension::third_party::{
     THIRD_PARTY_EXTENSIONS_SEARCH_SOURCE, get_third_party_extension_directory,
 };
-use crate::extension::{Extension, canonicalize_relative_icon_path};
+use crate::extension::{
+    Extension, canonicalize_relative_icon_path, canonicalize_relative_page_path,
+};
 use crate::util::platform::Platform;
 use serde_json::Value as Json;
 use std::path::Path;
@@ -165,6 +167,14 @@ pub(crate) async fn install_local_extension(
     // extensions that are not, filter them out.
     filter_out_incompatible_sub_extensions(&mut extension, current_platform);
 
+    // We are going to modify our third-party extension list, grab the write lock
+    // to ensure exclusive access.
+    let mut third_party_ext_list_write_lock = THIRD_PARTY_EXTENSIONS_SEARCH_SOURCE
+        .get()
+        .expect("global third party search source not set")
+        .write_lock()
+        .await;
+
     // Create destination directory
     let dest_dir = get_third_party_extension_directory(&tauri_app_handle)
         .join(DEVELOPER_ID_LOCAL)
@@ -211,15 +221,20 @@ pub(crate) async fn install_local_extension(
         .await
         .map_err(|e| e.to_string())?;
 
-    // Canonicalize relative icon paths
+    /*
+     * Call convert_page() to update the page files.  This has to be done after
+     * writing the extension files because we will edit them.
+     *
+     * HTTP links will be skipped.
+     */
+    view_extension_convert_pages(&extension, &dest_dir).await?;
+
+    // Canonicalize relative icon and page paths
     canonicalize_relative_icon_path(&dest_dir, &mut extension)?;
+    canonicalize_relative_page_path(&dest_dir, &mut extension)?;
 
     // Add extension to the search source
-    THIRD_PARTY_EXTENSIONS_SEARCH_SOURCE
-        .get()
-        .unwrap()
-        .add_extension(extension)
-        .await;
+    third_party_ext_list_write_lock.push(extension);
 
     Ok(())
 }

src-tauri/src/extension/third_party/install/mod.rs

@@ -3,38 +3,56 @@
 //!
 //! # How
 //!
-//! Technically, installing an extension involves the following steps:
-//!   
-//!   1. Correct the `plugin.json` JSON if it does not conform to our `struct Extension`
-//!      definition.
+//! Technically, installing an extension involves the following steps. The order
+//! may vary between implementations.
 //!
-//!   2. Write the extension files to the corresponding location
+//!   1. Check if it is already installed, if so, return
+//!   
+//!   2. Correct the `plugin.json` JSON if it does not conform to our `struct
+//!      Extension` definition. This can happen because the JSON written by
+//!      developers is in a simplified form for a better developer experience.
+//!
+//!   3. Validate the corrected `plugin.json`
+//!      1. misc checks
+//!      2. Platform compatibility check
+//!
+//!   4. Write the extension files to the corresponding location
 //!
 //!      * developer directory
 //!        * extension directory
 //!          * assets directory
 //!            * various assets files, e.g., "icon.png"
 //!          * plugin.json file
+//!          * View pages if exist
 //!
-//!   3. Canonicalize the `Extension.icon` fields if they are relative paths
-//!      (relative to the `assets` directory)
+//!   5. If this extension contains any View extensions, call `convert_page()`
+//!      on them to make them loadable by Tauri/webview.
 //!
-//!   4. Deserialize the `plugin.json` file to a `struct Extension`, and call
-//!      `THIRD_PARTY_EXTENSIONS_DIRECTORY.add_extension(extension)` to add it to
-//!      the in-memory extension list.
+//!      See `convert_page()` for more info.
+//!
+//!   6. Canonicalize `Extension.icon` and `Extension.page` fields if they are
+//!      relative paths
+//!
+//!      * icon: relative to the `assets` directory
+//!      * page: relative to the extension root directory
+//!
+//!   7. Add the extension to the in-memory extension list.
 
 pub(crate) mod local_extension;
 pub(crate) mod store;
 
 use crate::extension::Extension;
+use crate::extension::ExtensionType;
 use crate::util::platform::Platform;
+use std::path::Path;
+use std::path::PathBuf;
 
 use super::THIRD_PARTY_EXTENSIONS_SEARCH_SOURCE;
 
 pub(crate) async fn is_extension_installed(developer: &str, extension_id: &str) -> bool {
     THIRD_PARTY_EXTENSIONS_SEARCH_SOURCE
         .get()
-        .unwrap()
+        .expect("global third party search source not set")
         .extension_exists(developer, extension_id)
         .await
 }
@@ -51,14 +69,16 @@ pub(crate) fn filter_out_incompatible_sub_extensions(
         return;
     }
 
+    // For main extensions, None means all.
+    let main_extension_supported_platforms = extension.platforms.clone().unwrap_or(Platform::all());
+
     // Filter commands
     if let Some(ref mut commands) = extension.commands {
         commands.retain(|sub_ext| {
-            // If platforms is None, the sub-extension is compatible with all platforms
             if let Some(ref platforms) = sub_ext.platforms {
                 platforms.contains(&current_platform)
             } else {
-                true
+                main_extension_supported_platforms.contains(&current_platform)
             }
         });
     }
@@ -66,11 +86,10 @@ pub(crate) fn filter_out_incompatible_sub_extensions(
     // Filter scripts
     if let Some(ref mut scripts) = extension.scripts {
         scripts.retain(|sub_ext| {
-            // If platforms is None, the sub-extension is compatible with all platforms
             if let Some(ref platforms) = sub_ext.platforms {
                 platforms.contains(&current_platform)
             } else {
-                true
+                main_extension_supported_platforms.contains(&current_platform)
             }
         });
     }
@@ -78,14 +97,194 @@ pub(crate) fn filter_out_incompatible_sub_extensions(
     // Filter quicklinks
     if let Some(ref mut quicklinks) = extension.quicklinks {
         quicklinks.retain(|sub_ext| {
-            // If platforms is None, the sub-extension is compatible with all platforms
             if let Some(ref platforms) = sub_ext.platforms {
                 platforms.contains(&current_platform)
             } else {
-                true
+                main_extension_supported_platforms.contains(&current_platform)
             }
         });
     }
+
+    // Filter views
+    if let Some(ref mut views) = extension.views {
+        views.retain(|sub_ext| {
+            if let Some(ref platforms) = sub_ext.platforms {
+                platforms.contains(&current_platform)
+            } else {
+                main_extension_supported_platforms.contains(&current_platform)
+            }
+        });
+    }
+}
+
+/// Convert the page file to make it loadable by the Tauri/Webview.
+pub(crate) async fn convert_page(absolute_page_path: &Path) -> Result<(), String> {
+    assert!(absolute_page_path.is_absolute());
+
+    let page_content = tokio::fs::read_to_string(absolute_page_path)
+        .await
+        .map_err(|e| e.to_string())?;
+
+    let new_page_content = _convert_page(&page_content, absolute_page_path)?;
+
+    // overwrite it
+    tokio::fs::write(absolute_page_path, new_page_content)
+        .await
+        .map_err(|e| e.to_string())?;
+
+    Ok(())
+}
+
+/// NOTE: There is no Rust implementation of `convertFileSrc()` in Tauri. Our
+/// impl here is based on [comment](https://github.com/tauri-apps/tauri/issues/12022#issuecomment-2572879115)
+fn convert_file_src(path: &Path) -> Result<String, String> {
+    #[cfg(any(windows, target_os = "android"))]
+    let base = "http://asset.localhost/";
+    #[cfg(not(any(windows, target_os = "android")))]
+    let base = "asset://localhost/";
+
+    let path =
+        dunce::canonicalize(path).map_err(|e| format!("Failed to canonicalize path: {}", e))?;
+    let path_str = path.to_string_lossy();
+    let encoded = urlencoding::encode(&path_str);
+
+    Ok(format!("{base}{encoded}"))
+}
+
+/// Tauri cannot directly access the file system, to make a file loadable, we
+/// have to `canonicalize()` and `convertFileSrc()` its path before passing it
+/// to Tauri.
+///
+/// View extension's page is a HTML file that Coco (Tauri) will load, we need
+/// to process all `<PATH>` tags:
+///
+/// 1. `<script type="xxx" crossorigin src="<PATH>"></script>`
+/// 2. `<a href="<PATH>">xxx</a>`
+/// 3. `<link rel="xxx" href="<PATH>"/>`
+/// 4. `<img class="xxx" src="<PATH>" alt="xxx"/>`
+fn _convert_page(page_content: &str, absolute_page_path: &Path) -> Result<String, String> {
+    use scraper::{Html, Selector};
+
+    /// Helper function.
+    ///
+    /// Search `document` for the tag attributes specified by `tag_with_attribute`
+    /// and `tag_attribute`, call `convert_file_src()`, then update the attribute
+    /// value with the function return value.
+    fn modify_tag_attributes(
+        document: &Html,
+        modified_html: &mut String,
+        base_dir: &Path,
+        tag_with_attribute: &str,
+        tag_attribute: &str,
+    ) -> Result<(), String> {
+        let script_selector = Selector::parse(tag_with_attribute).unwrap();
+        for element in document.select(&script_selector) {
+            if let Some(src) = element.value().attr(tag_attribute) {
+                if !src.starts_with("http://")
+                    && !src.starts_with("https://")
+                    && !src.starts_with("asset://")
+                    && !src.starts_with("http://asset.localhost/")
+                {
+                    // It could be a path like "/assets/index-41be3ec9.js", but it
+                    // is still a relative path. We need to remove the starting /
+                    // or path.join() will think it is an absolute path and does nothing
+                    let corrected_src = if src.starts_with('/') { &src[1..] } else { src };
+
+                    let full_path = base_dir.join(corrected_src);
+
+                    let converted_path = convert_file_src(full_path.as_path())?;
+                    *modified_html = modified_html.replace(
+                        &format!("{}=\"{}\"", tag_attribute, src),
+                        &format!("{}=\"{}\"", tag_attribute, converted_path),
+                    );
+                }
+            }
+        }
+
+        Ok(())
+    }
+
+    let base_dir = absolute_page_path
+        .parent()
+        .ok_or_else(|| format!("page path is invalid, it should have a parent path"))?;
+    let document: Html = Html::parse_document(page_content);
+    let mut modified_html: String = page_content.to_string();
+
+    modify_tag_attributes(
+        &document,
+        &mut modified_html,
+        base_dir,
+        "script[src]",
+        "src",
+    )?;
+    modify_tag_attributes(&document, &mut modified_html, base_dir, "a[href]", "href")?;
+    modify_tag_attributes(
+        &document,
+        &mut modified_html,
+        base_dir,
+        "link[href]",
+        "href",
+    )?;
+    modify_tag_attributes(&document, &mut modified_html, base_dir, "img[src]", "src")?;
+
+    Ok(modified_html)
+}
+
+async fn view_extension_convert_pages(
+    extension: &Extension,
+    extension_directory: &Path,
+) -> Result<(), String> {
+    let pages: Vec<&str> = {
+        if extension.r#type == ExtensionType::View {
+            let page = extension
+                .page
+                .as_ref()
+                .expect("View extension should set its page field");
+
+            vec![page.as_str()]
+        } else if extension.r#type.contains_sub_items()
+            && let Some(ref views) = extension.views
+        {
+            let mut pages = Vec::with_capacity(views.len());
+
+            for view in views.iter() {
+                let page = view
+                    .page
+                    .as_ref()
+                    .expect("View extension should set its page field");
+
+                pages.push(page.as_str());
+            }
+
+            pages
+        } else {
+            // No pages in this extension
+            Vec::new()
+        }
+    };
+    fn canonicalize_page_path(page_path: &Path, extension_root: &Path) -> PathBuf {
+        if page_path.is_relative() {
+            // It is relative to the extension root directory
+            extension_root.join(page_path)
+        } else {
+            page_path.into()
+        }
+    }
+    for page in pages {
+        /*
+         * Skip HTTP links
+         */
+        if let Ok(url) = url::Url::parse(page)
+            && ["http", "https"].contains(&url.scheme())
+        {
+            continue;
+        }
+
+        let path = canonicalize_page_path(Path::new(page), &extension_directory);
+        convert_page(&path).await?;
+    }
+
+    Ok(())
 }
 
 #[cfg(test)]
@@ -113,10 +312,14 @@ mod tests {
             commands: None,
             scripts: None,
             quicklinks: None,
+            views: None,
             alias: None,
             hotkey: None,
             enabled: true,
             settings: None,
+            page: None,
+            ui: None,
+            permission: None,
             screenshots: None,
             url: None,
             version: None,
@@ -154,10 +357,15 @@ mod tests {
             ExtensionType::Script,
             Some(HashSet::from([Platform::Macos])),
         )];
+        let views = vec![create_test_extension(
+            ExtensionType::View,
+            Some(HashSet::from([Platform::Macos])),
+        )];
         // Set sub extensions
         main_extension.commands = Some(commands);
         main_extension.quicklinks = Some(quicklinks);
         main_extension.scripts = Some(scripts);
+        main_extension.views = Some(views);
 
         // Current platform is Linux, all the sub extensions should be filtered out.
         filter_out_incompatible_sub_extensions(&mut main_extension, Platform::Linux);
@@ -166,6 +374,7 @@ mod tests {
         assert!(main_extension.commands.unwrap().is_empty());
         assert!(main_extension.quicklinks.unwrap().is_empty());
         assert!(main_extension.scripts.unwrap().is_empty());
+        assert!(main_extension.views.unwrap().is_empty());
     }
 
     /// Sub extensions are compatible with all the platforms, nothing to filter out.
@@ -186,10 +395,15 @@ mod tests {
                 ExtensionType::Script,
                 Some(Platform::all()),
             )];
+            let views = vec![create_test_extension(
+                ExtensionType::View,
+                Some(Platform::all()),
+            )];
             // Set sub extensions
             main_extension.commands = Some(commands);
             main_extension.quicklinks = Some(quicklinks);
             main_extension.scripts = Some(scripts);
+            main_extension.views = Some(views);
 
             // Current platform is Linux, all the sub extensions should be filtered out.
             filter_out_incompatible_sub_extensions(&mut main_extension, Platform::Linux);
@@ -198,19 +412,23 @@ mod tests {
             assert_eq!(main_extension.commands.unwrap().len(), 1);
             assert_eq!(main_extension.quicklinks.unwrap().len(), 1);
             assert_eq!(main_extension.scripts.unwrap().len(), 1);
+            assert_eq!(main_extension.views.unwrap().len(), 1);
         }
 
-        // `platforms: None` means all platforms as well
+        // main extension is compatible with all platforms, sub extension's platforms
+        // is None, which means all platforms are supported
         {
             let mut main_extension = create_test_extension(ExtensionType::Group, None);
             // init sub extensions, which are compatible with all the platforms
             let commands = vec![create_test_extension(ExtensionType::Command, None)];
             let quicklinks = vec![create_test_extension(ExtensionType::Quicklink, None)];
             let scripts = vec![create_test_extension(ExtensionType::Script, None)];
+            let views = vec![create_test_extension(ExtensionType::View, None)];
             // Set sub extensions
             main_extension.commands = Some(commands);
             main_extension.quicklinks = Some(quicklinks);
             main_extension.scripts = Some(scripts);
+            main_extension.views = Some(views);
 
             // Current platform is Linux, all the sub extensions should be filtered out.
             filter_out_incompatible_sub_extensions(&mut main_extension, Platform::Linux);
@@ -219,6 +437,308 @@ mod tests {
             assert_eq!(main_extension.commands.unwrap().len(), 1);
             assert_eq!(main_extension.quicklinks.unwrap().len(), 1);
             assert_eq!(main_extension.scripts.unwrap().len(), 1);
+            assert_eq!(main_extension.views.unwrap().len(), 1);
         }
     }
+
+    #[test]
+    fn test_main_extension_is_incompatible_sub_extension_platforms_none() {
+        {
+            let mut main_extension =
+                create_test_extension(ExtensionType::Group, Some(HashSet::from([Platform::Macos])));
+            let commands = vec![create_test_extension(ExtensionType::Command, None)];
+            main_extension.commands = Some(commands);
+            filter_out_incompatible_sub_extensions(&mut main_extension, Platform::Linux);
+            assert_eq!(main_extension.commands.unwrap().len(), 0);
+        }
+
+        {
+            let mut main_extension =
+                create_test_extension(ExtensionType::Group, Some(HashSet::from([Platform::Macos])));
+            let scripts = vec![create_test_extension(ExtensionType::Script, None)];
+            main_extension.scripts = Some(scripts);
+            filter_out_incompatible_sub_extensions(&mut main_extension, Platform::Linux);
+            assert_eq!(main_extension.scripts.unwrap().len(), 0);
+        }
+
+        {
+            let mut main_extension =
+                create_test_extension(ExtensionType::Group, Some(HashSet::from([Platform::Macos])));
+            let quicklinks = vec![create_test_extension(ExtensionType::Quicklink, None)];
+            main_extension.quicklinks = Some(quicklinks);
+            filter_out_incompatible_sub_extensions(&mut main_extension, Platform::Linux);
+            assert_eq!(main_extension.quicklinks.unwrap().len(), 0);
+        }
+        {
+            let mut main_extension =
+                create_test_extension(ExtensionType::Group, Some(HashSet::from([Platform::Macos])));
+            let views = vec![create_test_extension(ExtensionType::View, None)];
+            main_extension.views = Some(views);
+            filter_out_incompatible_sub_extensions(&mut main_extension, Platform::Linux);
+            assert_eq!(main_extension.views.unwrap().len(), 0);
+        }
+    }
+
+    #[test]
+    fn test_main_extension_compatible_sub_extension_platforms_none() {
+        let mut main_extension =
+            create_test_extension(ExtensionType::Group, Some(HashSet::from([Platform::Macos])));
+        let views = vec![create_test_extension(ExtensionType::View, None)];
+        main_extension.views = Some(views);
+        filter_out_incompatible_sub_extensions(&mut main_extension, Platform::Macos);
+        assert_eq!(main_extension.views.unwrap().len(), 1);
+    }
+
+    #[test]
+    fn test_convert_page_script_tag() {
+        use tempfile::TempDir;
+
+        let temp_dir = TempDir::new().unwrap();
+        let html_file = temp_dir.path().join("test.html");
+        let js_file = temp_dir.path().join("main.js");
+
+        let html_content = r#"<html><body><script src="main.js"></script></body></html>"#;
+        std::fs::write(&html_file, html_content).unwrap();
+        std::fs::write(&js_file, "").unwrap();
+
+        let result = _convert_page(html_content, &html_file).unwrap();
+
+        let path = convert_file_src(&js_file).unwrap();
+        let expected = format!(
+            "<html><body><script src=\"{}\"></script></body></html>",
+            path
+        );
+
+        assert_eq!(result, expected);
+    }
+
+    #[test]
+    fn test_convert_page_script_tag_with_a_root_char() {
+        use tempfile::TempDir;
+
+        let temp_dir = TempDir::new().unwrap();
+        let html_file = temp_dir.path().join("test.html");
+        let js_file = temp_dir.path().join("main.js");
+
+        let html_content = r#"<html><body><script src="/main.js"></script></body></html>"#;
+        std::fs::write(&html_file, html_content).unwrap();
+        std::fs::write(&js_file, "").unwrap();
+
+        let result = _convert_page(html_content, &html_file).unwrap();
+
+        let path = convert_file_src(&js_file).unwrap();
+        let expected = format!(
+            "<html><body><script src=\"{}\"></script></body></html>",
+            path
+        );
+
+        assert_eq!(result, expected);
+    }
+
+    #[test]
+    fn test_convert_page_a_tag() {
+        use tempfile::TempDir;
+
+        let temp_dir = TempDir::new().unwrap();
+        let html_file = temp_dir.path().join("test.html");
+        let js_file = temp_dir.path().join("main.js");
+
+        let html_content = r#"<html><body><a href="main.js">foo</a></body></html>"#;
+        std::fs::write(&html_file, html_content).unwrap();
+        std::fs::write(&js_file, "").unwrap();
+
+        let result = _convert_page(html_content, &html_file).unwrap();
+
+        let path = convert_file_src(&js_file).unwrap();
+        let expected = format!("<html><body><a href=\"{}\">foo</a></body></html>", path);
+
+        assert_eq!(result, expected);
+    }
+
+    #[test]
+    fn test_convert_page_a_tag_with_a_root_char() {
+        use tempfile::TempDir;
+
+        let temp_dir = TempDir::new().unwrap();
+        let html_file = temp_dir.path().join("test.html");
+        let js_file = temp_dir.path().join("main.js");
+
+        let html_content = r#"<html><body><a href="/main.js">foo</a></body></html>"#;
+        std::fs::write(&html_file, html_content).unwrap();
+        std::fs::write(&js_file, "").unwrap();
+
+        let result = _convert_page(html_content, &html_file).unwrap();
+
+        let path = convert_file_src(&js_file).unwrap();
+        let expected = format!("<html><body><a href=\"{}\">foo</a></body></html>", path);
+
+        assert_eq!(result, expected);
+    }
+
+    #[test]
+    fn test_convert_page_link_href_tag() {
+        use tempfile::TempDir;
+
+        let temp_dir = TempDir::new().unwrap();
+        let html_file = temp_dir.path().join("test.html");
+        let css_file = temp_dir.path().join("main.css");
+
+        let html_content = r#"<html><body><link rel="stylesheet" href="main.css"/></body></html>"#;
+        std::fs::write(&html_file, html_content).unwrap();
+        std::fs::write(&css_file, "").unwrap();
+
+        let result = _convert_page(html_content, &html_file).unwrap();
+
+        let path = convert_file_src(&css_file).unwrap();
+        let expected = format!(
+            "<html><body><link rel=\"stylesheet\" href=\"{}\"/></body></html>",
+            path
+        );
+
+        assert_eq!(result, expected);
+    }
+
+    #[test]
+    fn test_convert_page_link_href_tag_with_a_root_tag() {
+        use tempfile::TempDir;
+
+        let temp_dir = TempDir::new().unwrap();
+        let html_file = temp_dir.path().join("test.html");
+        let css_file = temp_dir.path().join("main.css");
+
+        let html_content = r#"<html><body><link rel="stylesheet" href="/main.css"/></body></html>"#;
+        std::fs::write(&html_file, html_content).unwrap();
+        std::fs::write(&css_file, "").unwrap();
+
+        let result = _convert_page(html_content, &html_file).unwrap();
+
+        let path = convert_file_src(&css_file).unwrap();
+        let expected = format!(
+            "<html><body><link rel=\"stylesheet\" href=\"{}\"/></body></html>",
+            path
+        );
+
+        assert_eq!(result, expected);
+    }
+
+    #[test]
+    fn test_convert_page_img_src_tag() {
+        use tempfile::TempDir;
+
+        let temp_dir = TempDir::new().unwrap();
+        let html_file = temp_dir.path().join("test.html");
+        let png_file = temp_dir.path().join("main.png");
+
+        let html_content =
+            r#"<html><body> <img class="fit-picture" src="main.png" alt="xxx" /></body></html>"#;
+        std::fs::write(&html_file, html_content).unwrap();
+        std::fs::write(&png_file, "").unwrap();
+
+        let result = _convert_page(html_content, &html_file).unwrap();
+
+        let path = convert_file_src(&png_file).unwrap();
+        let expected = format!(
+            "<html><body> <img class=\"fit-picture\" src=\"{}\" alt=\"xxx\" /></body></html>",
+            path
+        );
+
+        assert_eq!(result, expected);
+    }
+
+    #[test]
+    fn test_convert_page_img_src_tag_with_a_root_tag() {
+        use tempfile::TempDir;
+
+        let temp_dir = TempDir::new().unwrap();
+        let html_file = temp_dir.path().join("test.html");
+        let png_file = temp_dir.path().join("main.png");
+
+        let html_content =
+            r#"<html><body> <img class="fit-picture" src="/main.png" alt="xxx" /></body></html>"#;
+        std::fs::write(&html_file, html_content).unwrap();
+        std::fs::write(&png_file, "").unwrap();
+
+        let result = _convert_page(html_content, &html_file).unwrap();
+
+        let path = convert_file_src(&png_file).unwrap();
+        let expected = format!(
+            "<html><body> <img class=\"fit-picture\" src=\"{}\" alt=\"xxx\" /></body></html>",
+            path
+        );
+
+        assert_eq!(result, expected);
+    }
+
+    #[test]
+    fn test_convert_page_contain_both_script_and_a_tags() {
+        use tempfile::TempDir;
+
+        let temp_dir = TempDir::new().unwrap();
+        let html_file = temp_dir.path().join("test.html");
+        let js_file = temp_dir.path().join("main.js");
+
+        let html_content =
+            r#"<html><body><a href="main.js">foo</a><script src="main.js"></script></body></html>"#;
+        std::fs::write(&html_file, html_content).unwrap();
+        std::fs::write(&js_file, "").unwrap();
+
+        let result = _convert_page(html_content, &html_file).unwrap();
+
+        let path = convert_file_src(&js_file).unwrap();
+        let expected = format!(
+            "<html><body><a href=\"{}\">foo</a><script src=\"{}\"></script></body></html>",
+            path, path
+        );
+
+        assert_eq!(result, expected);
+    }
+
+    #[test]
+    fn test_convert_page_contain_both_script_and_a_tags_with_root_char() {
+        use tempfile::TempDir;
+
+        let temp_dir = TempDir::new().unwrap();
+        let html_file = temp_dir.path().join("test.html");
+        let js_file = temp_dir.path().join("main.js");
+
+        let html_content = r#"<html><body><a href="/main.js">foo</a><script src="/main.js"></script></body></html>"#;
+        std::fs::write(&html_file, html_content).unwrap();
+        std::fs::write(&js_file, "").unwrap();
+
+        let result = _convert_page(html_content, &html_file).unwrap();
+
+        let path = convert_file_src(&js_file).unwrap();
+        let expected = format!(
+            "<html><body><a href=\"{}\">foo</a><script src=\"{}\"></script></body></html>",
+            path, path
+        );
+
+        assert_eq!(result, expected);
+    }
+
+    #[test]
+    fn test_convert_page_empty_html() {
+        use tempfile::TempDir;
+
+        let temp_dir = TempDir::new().unwrap();
+        let html_file = temp_dir.path().join("test.html");
+
+        let html_content = "";
+        std::fs::write(&html_file, html_content).unwrap();
+        let result = _convert_page(html_content, &html_file).unwrap();
+        assert!(result.is_empty());
+    }
+
+    #[test]
+    fn test_convert_page_only_html_tag() {
+        use tempfile::TempDir;
+
+        let temp_dir = TempDir::new().unwrap();
+        let html_file = temp_dir.path().join("test.html");
+
+        let html_content = "<html></html>";
+        std::fs::write(&html_file, html_content).unwrap();
+        let result = _convert_page(html_content, &html_file).unwrap();
+        assert_eq!(result, html_content);
+    }
 }

src-tauri/src/extension/third_party/install/store.rs

@@ -13,9 +13,11 @@ use crate::extension::Extension;
 use crate::extension::PLUGIN_JSON_FILE_NAME;
 use crate::extension::THIRD_PARTY_EXTENSIONS_SEARCH_SOURCE;
 use crate::extension::canonicalize_relative_icon_path;
+use crate::extension::canonicalize_relative_page_path;
 use crate::extension::third_party::check::general_check;
 use crate::extension::third_party::get_third_party_extension_directory;
 use crate::extension::third_party::install::filter_out_incompatible_sub_extensions;
+use crate::extension::third_party::install::view_extension_convert_pages;
 use crate::server::http_client::HttpClient;
 use crate::util::platform::Platform;
 use async_trait::async_trait;
@@ -172,6 +174,53 @@ pub(crate) async fn search_extension(
     Ok(extensions)
 }
 
+#[tauri::command]
+pub(crate) async fn extension_detail(
+    id: String,
+) -> Result<Option<JsonObject<String, Json>>, String> {
+    let path = format!("store/extension/{}", id);
+    let response = HttpClient::get("default_coco_server", path.as_str(), None)
+        .await
+        .map_err(|e| format!("Failed to send request: {:?}", e))?;
+
+    if response.status() == StatusCode::NOT_FOUND {
+        return Ok(None);
+    }
+
+    let response_dbg_str = format!("{:?}", response);
+    // The response of an ES style GET request
+    let mut response: JsonObject<String, Json> = response.json().await.unwrap_or_else(|_e| {
+        panic!(
+            "response body of [/store/extension/<ID>] is not a JSON object, response [{:?}]",
+            response_dbg_str
+        )
+    });
+    let source_json = response.remove("_source").unwrap_or_else(|| {
+        panic!("field [_source] not found in the JSON returned from [/store/extension/<ID>]")
+    });
+    let mut source_obj = match source_json {
+        Json::Object(obj) => obj,
+        _ => panic!(
+            "field [_source] should be a JSON object, but it is not, value: [{}]",
+            source_json
+        ),
+    };
+
+    let developer_id = match &source_obj["developer"]["id"] {
+        Json::String(dev) => dev,
+        _ => {
+            panic!(
+                "field [_source.developer.id] should be a string, but it is not, value: [{}]",
+                source_obj["developer"]["id"]
+            )
+        }
+    };
+    let installed = is_extension_installed(developer_id, &id).await;
+    source_obj.insert("installed".to_string(), Json::Bool(installed));
+
+    Ok(Some(source_obj))
+}
+
 #[tauri::command]
 pub(crate) async fn install_extension_from_store(
     tauri_app_handle: AppHandle,
@@ -250,21 +299,40 @@ pub(crate) async fn install_extension_from_store(
             e
         );
     });
+    let developer_id = extension.developer.clone().expect("developer has been set");
 
     drop(plugin_json);
 
     general_check(&extension)?;
 
+    let current_platform = Platform::current();
+    if let Some(ref platforms) = extension.platforms {
+        if !platforms.contains(&current_platform) {
+            return Err("this extension is not compatible with your OS".into());
+        }
+    }
+
+    if is_extension_installed(&developer_id, &id).await {
+        return Err("Extension already installed.".into());
+    }
+
     // Extension is compatible with current platform, but it could contain sub
     // extensions that are not, filter them out.
-    filter_out_incompatible_sub_extensions(&mut extension, Platform::current());
+    filter_out_incompatible_sub_extensions(&mut extension, current_platform);
+
+    // We are going to modify our third-party extension list, grab the write lock
+    // to ensure exclusive access.
+    let mut third_party_ext_list_write_lock = THIRD_PARTY_EXTENSIONS_SEARCH_SOURCE
+        .get()
+        .expect("global third party search source not set")
+        .write_lock()
+        .await;
 
     // Write extension files to the extension directory
-    let developer = extension.developer.clone().unwrap_or_default();
     let extension_id = extension.id.clone();
     let extension_directory = {
         let mut path = get_third_party_extension_directory(&tauri_app_handle);
-        path.push(developer);
+        path.push(developer_id);
         path.push(extension_id.as_str());
         path
     };
@@ -328,14 +396,19 @@ pub(crate) async fn install_extension_from_store(
         .await
         .map_err(|e| e.to_string())?;
 
-    // Turn it into an absolute path if it is a valid relative path because frontend code need this.
-    canonicalize_relative_icon_path(&extension_directory, &mut extension)?;
+    /*
+     * Call convert_page() to update the page files.  This has to be done after
+     * writing the extension files because we will edit them.
+     *
+     * HTTP links will be skipped.
+     */
+    view_extension_convert_pages(&extension, &extension_directory).await?;
 
-    THIRD_PARTY_EXTENSIONS_SEARCH_SOURCE
-        .get()
-        .unwrap()
-        .add_extension(extension)
-        .await;
+    // Canonicalize relative icon and page paths
+    canonicalize_relative_icon_path(&extension_directory, &mut extension)?;
+    canonicalize_relative_page_path(&extension_directory, &mut extension)?;
+
+    third_party_ext_list_write_lock.push(extension);
 
     Ok(())
 }

src-tauri/src/extension/third_party/mod.rs

@@ -15,11 +15,16 @@ use crate::common::search::QuerySource;
 use crate::common::search::SearchQuery;
 use crate::common::traits::SearchSource;
 use crate::extension::ExtensionBundleIdBorrowed;
+use crate::extension::ExtensionType;
+use crate::extension::calculate_text_similarity;
+use crate::extension::canonicalize_relative_page_path;
 use crate::util::platform::Platform;
 use async_trait::async_trait;
 use borrowme::ToOwned;
 use check::general_check;
 use function_name::named;
+use std::collections::HashMap;
+use std::io::ErrorKind;
 use std::path::Path;
 use std::path::PathBuf;
 use std::sync::Arc;
@@ -42,7 +47,7 @@ pub(crate) fn get_third_party_extension_directory(tauri_app_handle: &AppHandle)
     app_data_dir
 }
 
-pub(crate) async fn list_third_party_extensions(
+pub(crate) async fn load_third_party_extensions_from_directory(
     directory: &Path,
 ) -> Result<Vec<Extension>, String> {
     let mut extensions_dir_iter = read_dir(&directory).await.map_err(|e| e.to_string())?;
@@ -181,6 +186,7 @@ pub(crate) async fn list_third_party_extensions(
 
             // Turn it into an absolute path if it is a valid relative path because frontend code needs this.
             canonicalize_relative_icon_path(&extension_dir.path(), &mut extension)?;
+            canonicalize_relative_page_path(&extension_dir.path(), &mut extension)?;
 
             extensions.push(extension);
         }
@@ -202,7 +208,7 @@ pub(crate) async fn list_third_party_extensions(
 /// Since some `#[tauri::command]`s need to access it, we store it in a global
 /// static variable as well.
 #[derive(Debug, Clone)]
-pub(super) struct ThirdPartyExtensionsSearchSource {
+pub(crate) struct ThirdPartyExtensionsSearchSource {
     inner: Arc<ThirdPartyExtensionsSearchSourceInner>,
 }
 
@@ -288,6 +294,11 @@ impl ThirdPartyExtensionsSearchSource {
                     Self::_enable_extension(&tauri_app_handle, quicklink).await?;
                 }
             }
+            if let Some(views) = &extension.views {
+                for view in views.iter().filter(|ext| ext.enabled) {
+                    Self::_enable_extension(&tauri_app_handle, view).await?;
+                }
+            }
         }
 
         Ok(())
@@ -330,6 +341,11 @@ impl ThirdPartyExtensionsSearchSource {
                     Self::_disable_extension(tauri_app_handle, quicklink).await?;
                 }
             }
+            if let Some(views) = &extension.views {
+                for view in views.iter().filter(|ext| ext.enabled) {
+                    Self::_disable_extension(tauri_app_handle, view).await?;
+                }
+            }
         }
 
         Ok(())
@@ -343,6 +359,11 @@ impl ThirdPartyExtensionsSearchSource {
         }
     }
 
+    /// Acquire the write lock to the extension list.
+    pub(crate) async fn write_lock(&self) -> RwLockWriteGuard<'_, Vec<Extension>> {
+        self.inner.extensions.write().await
+    }
+
     #[named]
     pub(super) async fn enable_extension(
         &self,
@@ -457,7 +478,7 @@ impl ThirdPartyExtensionsSearchSource {
 
     /// Initialize the third-party extensions, which literally means
     /// enabling/activating the enabled extensions.
-    pub(super) async fn init(&self, tauri_app_handle: &AppHandle) -> Result<(), String> {
+    pub(crate) async fn init(&self, tauri_app_handle: &AppHandle) -> Result<(), String> {
         let extensions_read_lock = self.inner.extensions.read().await;
 
         for extension in extensions_read_lock.iter().filter(|ext| ext.enabled) {
@@ -504,6 +525,24 @@ impl ThirdPartyExtensionsSearchSource {
         let on_opened = extension.on_opened().unwrap_or_else(|| panic!(
             "setting hotkey for an extension that cannot be opened, extension ID [{:?}], extension type [{:?}]", bundle_id, extension.r#type,
         ));
+        let url = on_opened.url();
+        let extension_type_string = extension.r#type.to_string();
+        let document = Document {
+            id: extension.id.clone(),
+            title: Some(extension.name.clone()),
+            icon: Some(extension.icon.clone()),
+            on_opened: Some(on_opened.clone()),
+            url: Some(url),
+            category: Some(extension_type_string.clone()),
+            source: Some(DataSourceReference {
+                id: Some(extension_type_string.clone()),
+                name: Some(extension_type_string.clone()),
+                icon: None,
+                r#type: Some(extension_type_string),
+            }),
+
+            ..Default::default()
+        };
 
         let bundle_id_owned = bundle_id.to_owned();
         tauri_app_handle
@@ -513,9 +552,16 @@ impl ThirdPartyExtensionsSearchSource {
                 let bundle_id_clone = bundle_id_owned.clone();
                 let app_handle_clone = tauri_app_handle.clone();
 
+                let document_clone = document.clone();
                 if event.state() == ShortcutState::Pressed {
                     async_runtime::spawn(async move {
-                        let result = open(app_handle_clone, on_opened_clone, None).await;
+                        let mut args = HashMap::new();
+                        args.insert(
+                            String::from("document"),
+                            serde_json::to_value(&document_clone).unwrap(),
+                        );
+
+                        let result = open(app_handle_clone, on_opened_clone, Some(args)).await;
                         if let Err(msg) = result {
                             log::warn!(
                                 "failed to open extension [{:?}], error [{}]",
@@ -628,48 +674,68 @@ impl ThirdPartyExtensionsSearchSource {
             .any(|ext| ext.developer.as_deref() == Some(developer) && ext.id == extension_id)
     }
 
-    /// Add `extension` to the **in-memory** extension list.
-    pub(crate) async fn add_extension(&self, extension: Extension) {
-        assert!(
-            extension.developer.is_some(),
-            "loaded third party extension should have its developer set"
-        );
+    pub(crate) async fn uninstall_extension(
+        &self,
+        tauri_app_handle: &AppHandle,
+        developer: &str,
+        extension_id: &str,
+    ) -> Result<(), String> {
+        let mut write_lock = self.inner.extensions.write().await;
 
-        let mut write_lock_guard = self.inner.extensions.write().await;
-        if write_lock_guard
-            .iter()
-            .any(|ext| ext.developer == extension.developer && ext.id == extension.id)
-        {
-            panic!(
-                "extension [{}/{}] already installed",
-                extension
-                    .developer
-                    .as_ref()
-                    .expect("just checked it is Some"),
-                extension.id
-            );
-        }
-        write_lock_guard.push(extension);
-    }
-
-    /// Remove `extension` from the **in-memory** extension list.
-    pub(crate) async fn remove_extension(&self, developer: &str, extension_id: &str) -> Extension {
-        let mut write_lock_guard = self.inner.extensions.write().await;
-        let Some(index) = write_lock_guard
+        let Some(index) = write_lock
             .iter()
             .position(|ext| ext.developer.as_deref() == Some(developer) && ext.id == extension_id)
         else {
-            panic!(
-                "extension [{}/{}] not installed, but we are trying to remove it",
+            return Err(format!(
+                "The extension we are trying to uninstall [{}/{}] does not exist",
                 developer, extension_id
-            );
+            ));
+        };
+        let deleted_extension = write_lock.remove(index);
+
+        let extension_dir = {
+            let mut path = get_third_party_extension_directory(&tauri_app_handle);
+            path.push(developer);
+            path.push(extension_id);
+
+            path
         };
 
-        write_lock_guard.remove(index)
+        if let Err(e) = tokio::fs::remove_dir_all(extension_dir.as_path()).await {
+            let error_kind = e.kind();
+            if error_kind == ErrorKind::NotFound {
+                // We accept this error because we do want it to not exist.  But
+                // since it is not a state we expect, throw a warning.
+                log::warn!(
+                    "trying to uninstalling extension [developer {} id {}], but its directory does not exist",
+                    developer,
+                    extension_id
+                );
+            } else {
+                return Err(format!(
+                    "failed to uninstall extension [developer {} id {}] due to error {}",
+                    developer, extension_id, e
+                ));
+            }
+        }
+
+        // Unregister the extension hotkey, if set.
+        //
+        // Unregistering hotkey is the only thing that we will do when we disable
+        // an extension, so we directly use this function here even though "disabling"
+        // the extension that one is trying to uninstall does not make too much sense.
+        Self::_disable_extension(&tauri_app_handle, &deleted_extension).await?;
+
+        Ok(())
+    }
+
+    /// Take a point-in-time snapshot at the extension list and return it.
+    pub(crate) async fn extensions_snapshot(&self) -> Vec<Extension> {
+        self.inner.extensions.read().await.clone()
     }
 }
 
-pub(super) static THIRD_PARTY_EXTENSIONS_SEARCH_SOURCE: OnceLock<ThirdPartyExtensionsSearchSource> =
+pub(crate) static THIRD_PARTY_EXTENSIONS_SEARCH_SOURCE: OnceLock<ThirdPartyExtensionsSearchSource> =
     OnceLock::new();
 
 #[derive(Debug)]
@@ -718,11 +784,22 @@ impl SearchSource for ThirdPartyExtensionsSearchSource {
 
             for extension in extensions_read_lock.iter().filter(|ext| ext.enabled) {
                 if extension.r#type.contains_sub_items() {
+                    let opt_main_extension_lowercase_name =
+                        if extension.r#type == ExtensionType::Extension {
+                            Some(extension.name.to_lowercase())
+                        } else {
+                            // None if it is of type `ExtensionType::Group`
+                            None
+                        };
+
                     if let Some(ref commands) = extension.commands {
                         for command in commands.iter().filter(|cmd| cmd.enabled) {
-                            if let Some(hit) =
-                                extension_to_hit(command, &query_lower, opt_data_source.as_deref())
-                            {
+                            if let Some(hit) = extension_to_hit(
+                                command,
+                                &query_lower,
+                                opt_data_source.as_deref(),
+                                opt_main_extension_lowercase_name.as_deref(),
+                            ) {
                                 hits.push(hit);
                             }
                         }
@@ -730,9 +807,12 @@ impl SearchSource for ThirdPartyExtensionsSearchSource {
 
                     if let Some(ref scripts) = extension.scripts {
                         for script in scripts.iter().filter(|script| script.enabled) {
-                            if let Some(hit) =
-                                extension_to_hit(script, &query_lower, opt_data_source.as_deref())
-                            {
+                            if let Some(hit) = extension_to_hit(
+                                script,
+                                &query_lower,
+                                opt_data_source.as_deref(),
+                                opt_main_extension_lowercase_name.as_deref(),
+                            ) {
                                 hits.push(hit);
                             }
                         }
@@ -744,6 +824,20 @@ impl SearchSource for ThirdPartyExtensionsSearchSource {
                                 quicklink,
                                 &query_lower,
                                 opt_data_source.as_deref(),
+                                opt_main_extension_lowercase_name.as_deref(),
+                            ) {
+                                hits.push(hit);
+                            }
+                        }
+                    }
+
+                    if let Some(ref views) = extension.views {
+                        for view in views.iter().filter(|link| link.enabled) {
+                            if let Some(hit) = extension_to_hit(
+                                view,
+                                &query_lower,
+                                opt_data_source.as_deref(),
+                                opt_main_extension_lowercase_name.as_deref(),
                             ) {
                                 hits.push(hit);
                             }
@@ -751,7 +845,7 @@ impl SearchSource for ThirdPartyExtensionsSearchSource {
                     }
                 } else {
                     if let Some(hit) =
-                        extension_to_hit(extension, &query_lower, opt_data_source.as_deref())
+                        extension_to_hit(extension, &query_lower, opt_data_source.as_deref(), None)
                     {
                         hits.push(hit);
                     }
@@ -777,10 +871,31 @@ impl SearchSource for ThirdPartyExtensionsSearchSource {
     }
 }
 
-fn extension_to_hit(
+#[tauri::command]
+pub(crate) async fn uninstall_extension(
+    tauri_app_handle: AppHandle,
+    developer: String,
+    extension_id: String,
+) -> Result<(), String> {
+    THIRD_PARTY_EXTENSIONS_SEARCH_SOURCE
+        .get()
+        .expect("global third party search source not set")
+        .uninstall_extension(&tauri_app_handle, &developer, &extension_id)
+        .await
+}
+
+/// Argument `opt_main_extension_lowercase_name`: If `extension` is a sub-extension
+/// of an `extension` type extension, then this argument contains the lowercase
+/// name of that extension. Otherwise, None.
+///
+/// This argument is needed as an "extension" type extension should return all its
+/// sub-extensions when the query string matches its name. To do this, we pass the
+/// extension name, score it and take that into account.
+pub(crate) fn extension_to_hit(
     extension: &Extension,
     query_lower: &str,
     opt_data_source: Option<&str>,
+    opt_main_extension_lowercase_name: Option<&str>,
 ) -> Option<(Document, f64)> {
     if !extension.searchable() {
         return None;
@@ -803,14 +918,26 @@ fn extension_to_hit(
     if let Some(title_score) =
         calculate_text_similarity(&query_lower, &extension.name.to_lowercase())
     {
-        total_score += title_score * 1.0; // Weight for title
+        total_score += title_score;
     }
 
     // Score based on alias match if available
     // Alias is considered less important than title, so it gets a lower weight.
     if let Some(alias) = &extension.alias {
         if let Some(alias_score) = calculate_text_similarity(&query_lower, &alias.to_lowercase()) {
-            total_score += alias_score * 0.7; // Weight for alias
+            total_score += alias_score;
+        }
+    }
+
+    // An "extension" type extension should return all its
+    // sub-extensions when the query string matches its ID.
+    // To do this, we score the extension ID and take that
+    // into account.
+    if let Some(main_extension_lowercase_id) = opt_main_extension_lowercase_name {
+        if let Some(main_extension_score) =
+            calculate_text_similarity(&query_lower, main_extension_lowercase_id)
+        {
+            total_score += main_extension_score;
         }
     }
 
@@ -846,183 +973,3 @@ fn extension_to_hit(
         None
     }
 }
-
-// Calculates a similarity score between a query and a text, aiming for a [0, 1] range.
-// Assumes query and text are already lowercased.
-fn calculate_text_similarity(query: &str, text: &str) -> Option<f64> {
-    if query.is_empty() || text.is_empty() {
-        return None;
-    }
-
-    if text == query {
-        return Some(1.0); // Perfect match
-    }
-
-    let query_len = query.len() as f64;
-    let text_len = text.len() as f64;
-    let ratio = query_len / text_len;
-    let mut score: f64 = 0.0;
-
-    // Case 1: Text starts with the query (prefix match)
-    // Score: base 0.5, bonus up to 0.4 for how much of `text` is covered by `query`. Max 0.9.
-    if text.starts_with(query) {
-        score = score.max(0.5 + 0.4 * ratio);
-    }
-
-    // Case 2: Text contains the query (substring match, not necessarily prefix)
-    // Score: base 0.3, bonus up to 0.3. Max 0.6.
-    // `score.max` ensures that if it's both a prefix and contains, the higher score (prefix) is taken.
-    if text.contains(query) {
-        score = score.max(0.3 + 0.3 * ratio);
-    }
-
-    // Case 3: Fallback for "all query characters exist in text" (order-independent)
-    if score < 0.2 {
-        if query.chars().all(|c_q| text.contains(c_q)) {
-            score = score.max(0.15); // Fixed low score for this weaker match type
-        }
-    }
-
-    if score > 0.0 {
-        // Cap non-perfect matches slightly below 1.0 to make perfect (1.0) distinct.
-        Some(score.min(0.95))
-    } else {
-        None
-    }
-}
-
-#[tauri::command]
-pub(crate) async fn uninstall_extension(
-    tauri_app_handle: AppHandle,
-    developer: String,
-    extension_id: String,
-) -> Result<(), String> {
-    let extension_dir = {
-        let mut path = get_third_party_extension_directory(&tauri_app_handle);
-        path.push(developer.as_str());
-        path.push(extension_id.as_str());
-
-        path
-    };
-    if !extension_dir.try_exists().map_err(|e| e.to_string())? {
-        panic!(
-            "we are uninstalling extension [{}/{}], but there is no such extension files on disk",
-            developer, extension_id
-        )
-    }
-    tokio::fs::remove_dir_all(extension_dir.as_path())
-        .await
-        .map_err(|e| e.to_string())?;
-
-    let extension = THIRD_PARTY_EXTENSIONS_SEARCH_SOURCE
-        .get()
-        .unwrap()
-        .remove_extension(&developer, &extension_id)
-        .await;
-
-    // Unregister the extension hotkey, if set.
-    //
-    // Unregistering hotkey is the only thing that we will do when we disable
-    // an extension, so we directly use this function here even though "disabling"
-    // the extension that one is trying to uninstall does not make too much sense.
-    ThirdPartyExtensionsSearchSource::_disable_extension(&tauri_app_handle, &extension).await?;
-
-    Ok(())
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    // Helper function for approximate floating point comparison
-    fn approx_eq(a: f64, b: f64) -> bool {
-        (a - b).abs() < 1e-10
-    }
-
-    #[test]
-    fn test_empty_strings() {
-        assert_eq!(calculate_text_similarity("", "text"), None);
-        assert_eq!(calculate_text_similarity("query", ""), None);
-        assert_eq!(calculate_text_similarity("", ""), None);
-    }
-
-    #[test]
-    fn test_perfect_match() {
-        assert_eq!(calculate_text_similarity("text", "text"), Some(1.0));
-        assert_eq!(calculate_text_similarity("a", "a"), Some(1.0));
-    }
-
-    #[test]
-    fn test_prefix_match() {
-        // For "te" and "text":
-        // score = 0.5 + 0.4 * (2/4) = 0.5 + 0.2 = 0.7
-        let score = calculate_text_similarity("te", "text").unwrap();
-        assert!(approx_eq(score, 0.7));
-
-        // For "tex" and "text":
-        // score = 0.5 + 0.4 * (3/4) = 0.5 + 0.3 = 0.8
-        let score = calculate_text_similarity("tex", "text").unwrap();
-        assert!(approx_eq(score, 0.8));
-    }
-
-    #[test]
-    fn test_substring_match() {
-        // For "ex" and "text":
-        // score = 0.3 + 0.3 * (2/4) = 0.3 + 0.15 = 0.45
-        let score = calculate_text_similarity("ex", "text").unwrap();
-        assert!(approx_eq(score, 0.45));
-
-        // Prefix should score higher than substring
-        assert!(
-            calculate_text_similarity("te", "text").unwrap()
-                > calculate_text_similarity("ex", "text").unwrap()
-        );
-    }
-
-    #[test]
-    fn test_character_presence() {
-        // Characters present but not in sequence
-        // "tac" in "contact" - not a substring, but all chars exist
-        let score = calculate_text_similarity("tac", "contact").unwrap();
-        assert!(approx_eq(0.3 + 0.3 * (3.0 / 7.0), score));
-
-        assert!(calculate_text_similarity("ac", "contact").is_some());
-
-        // Should not apply if some characters are missing
-        assert_eq!(calculate_text_similarity("xyz", "contact"), None);
-    }
-
-    #[test]
-    fn test_combined_scenarios() {
-        // Test that character presence fallback doesn't override higher scores
-        // "tex" is a prefix of "text" with score 0.8
-        let score = calculate_text_similarity("tex", "text").unwrap();
-        assert!(approx_eq(score, 0.8));
-
-        // Test a case where the characters exist but it's already a substring
-        // "act" is a substring of "contact" with score > 0.2, so fallback won't apply
-        let expected_score = 0.3 + 0.3 * (3.0 / 7.0);
-        let actual_score = calculate_text_similarity("act", "contact").unwrap();
-        assert!(approx_eq(actual_score, expected_score));
-    }
-
-    #[test]
-    fn test_no_similarity() {
-        assert_eq!(calculate_text_similarity("xyz", "test"), None);
-    }
-
-    #[test]
-    fn test_score_capping() {
-        // Use a long query that's a prefix of a slightly longer text
-        let long_text = "abcdefghijklmnopqrstuvwxyz";
-        let long_prefix = "abcdefghijklmnopqrstuvwxy"; // All but last letter
-
-        // Expected score would be 0.5 + 0.4 * (25/26) = 0.5 + 0.385 = 0.885
-        let expected_score = 0.5 + 0.4 * (25.0 / 26.0);
-        let actual_score = calculate_text_similarity(long_prefix, long_text).unwrap();
-        assert!(approx_eq(actual_score, expected_score));
-
-        // Verify that non-perfect matches are capped at 0.95
-        assert!(calculate_text_similarity("almost", "almost perfect").unwrap() <= 0.95);
-    }
-}

src-tauri/src/lib.rs

@@ -7,18 +7,18 @@ mod server;
 mod settings;
 mod setup;
 mod shortcut;
-mod util;
+// We need this in main.rs, so it has to be pub
+pub mod util;
 
 use crate::common::register::SearchSourceRegistry;
-// use crate::common::traits::SearchSource;
 use crate::common::{CHECK_WINDOW_LABEL, MAIN_WINDOW_LABEL, SETTINGS_WINDOW_LABEL};
 use crate::server::servers::{load_or_insert_default_server, load_servers_token};
-use autostart::{change_autostart, ensure_autostart_state_consistent};
+use crate::util::logging::set_up_tauri_logger;
+use crate::util::prevent_default;
+use autostart::change_autostart;
 use lazy_static::lazy_static;
 use std::sync::Mutex;
 use std::sync::OnceLock;
-use tauri::async_runtime::block_on;
-use tauri::plugin::TauriPlugin;
 use tauri::{AppHandle, Emitter, Manager, PhysicalPosition, WebviewWindow, WindowEvent};
 use tauri_plugin_autostart::MacosLauncher;
 
@@ -70,10 +70,8 @@ pub fn run() {
 
     #[cfg(desktop)]
     {
-        app_builder = app_builder.plugin(tauri_plugin_single_instance::init(|_app, argv, _cwd| {
-            log::debug!("a new app instance was opened with {argv:?} and the deep link event was already triggered");
-            // when defining deep link schemes at runtime, you must also check `argv` here
-        }));
+        app_builder =
+            app_builder.plugin(tauri_plugin_single_instance::init(|_app, _argv, _cwd| {}));
     }
 
     app_builder = app_builder
@@ -96,7 +94,8 @@ pub fn run() {
                 .build(),
         )
         .plugin(tauri_plugin_windows_version::init())
-        .plugin(tauri_plugin_opener::init());
+        .plugin(tauri_plugin_opener::init())
+        .plugin(prevent_default::init());
 
     // Conditional compilation for macOS
     #[cfg(target_os = "macos")]
@@ -164,30 +163,26 @@ pub fn run() {
             extension::unregister_extension_hotkey,
             extension::is_extension_enabled,
             extension::third_party::install::store::search_extension,
+            extension::third_party::install::store::extension_detail,
             extension::third_party::install::store::install_extension_from_store,
             extension::third_party::install::local_extension::install_local_extension,
             extension::third_party::uninstall_extension,
+            extension::api::apis,
+            extension::api::fs::read_dir,
             settings::set_allow_self_signature,
             settings::get_allow_self_signature,
             assistant::ask_ai,
             crate::common::document::open,
-            #[cfg(any(target_os = "macos", target_os = "windows"))]
             extension::built_in::file_search::config::get_file_system_config,
-            #[cfg(any(target_os = "macos", target_os = "windows"))]
             extension::built_in::file_search::config::set_file_system_config,
             server::synthesize::synthesize,
             util::file::get_file_icon,
+            setup::backend_setup,
             util::app_lang::update_app_lang,
-            #[cfg(target_os = "macos")]
-            setup::toggle_move_to_active_space_attribute,
+            util::path::path_absolute,
+            util::logging::app_log_dir
         ])
         .setup(|app| {
-            let app_handle = app.handle().clone();
-            GLOBAL_TAURI_APP_HANDLE
-                .set(app_handle.clone())
-                .expect("global tauri AppHandle already initialized");
-            log::trace!("global Tauri AppHandle set");
-
             #[cfg(target_os = "macos")]
             {
                 log::trace!("hiding Dock icon on macOS");
@@ -195,67 +190,21 @@ pub fn run() {
                 log::trace!("Dock icon should be hidden now");
             }
 
-            let registry = SearchSourceRegistry::default();
 
-            app.manage(registry); // Store registry in Tauri's app state
-
-            // This has to be called before initializing extensions as doing that
-            // requires access to the shortcut store, which will be set by this
-            // function.
-            shortcut::enable_shortcut(app);
-
-            block_on(async {
-                init(app.handle()).await;
-
-                // We want all the extensions here, so no filter condition specified.
-                match extension::list_extensions(app_handle.clone(), None, None, false).await {
-                    Ok(extensions) => {
-                        // Initializing extension relies on SearchSourceRegistry, so this should
-                        // be executed after `app.manage(registry)`
-                        if let Err(e) =
-                            extension::init_extensions(app_handle.clone(), extensions).await
-                        {
-                            log::error!("initializing extensions failed with error [{}]", e);
-                        }
-                    }
-                    Err(e) => {
-                        log::error!("listing extensions failed with error [{}]", e);
-                    }
-                }
-            });
-
-            ensure_autostart_state_consistent(app)?;
-
-            // app.listen("theme-changed", move |event| {
-            //     if let Ok(payload) = serde_json::from_str::<ThemeChangedPayload>(event.payload()) {
-            //         // switch_tray_icon(app.app_handle(), payload.is_dark_mode);
-            //         log::debug!("Theme changed: is_dark_mode = {}", payload.is_dark_mode);
-            //     }
-            // });
-
-            #[cfg(desktop)]
-            {
-                #[cfg(any(windows, target_os = "linux"))]
-                {
-                    app.deep_link().register("coco")?;
-                    use tauri_plugin_deep_link::DeepLinkExt;
-                    app.deep_link().register_all()?;
-                }
-            }
-
-            // app.deep_link().on_open_url(|event| {
-            //     dbg!(event.urls());
-            // });
-
-            let main_window = app.get_webview_window(MAIN_WINDOW_LABEL).unwrap();
-            let settings_window = app.get_webview_window(SETTINGS_WINDOW_LABEL).unwrap();
-            let check_window = app.get_webview_window(CHECK_WINDOW_LABEL).unwrap();
+            /* ----------- This code must be executed on the main thread and must not be relocated. ----------- */
+            let app_handle = app.app_handle();
+            let main_window = app_handle.get_webview_window(MAIN_WINDOW_LABEL).unwrap();
+            let settings_window = app_handle
+                .get_webview_window(SETTINGS_WINDOW_LABEL)
+                .unwrap();
+            let check_window = app_handle.get_webview_window(CHECK_WINDOW_LABEL).unwrap();
             setup::default(
-                app,
+                app_handle,
                 main_window.clone(),
                 settings_window.clone(),
                 check_window.clone(),
             );
+            /* ----------- This code must be executed on the main thread and must not be relocated. ----------- */
 
             Ok(())
         })
@@ -318,25 +267,57 @@ async fn show_coco(app_handle: AppHandle) {
     if let Some(window) = app_handle.get_webview_window(MAIN_WINDOW_LABEL) {
         move_window_to_active_monitor(&window);
 
-        let _ = window.show();
-        let _ = window.unminimize();
-        let _ = window.set_focus();
+        cfg_if::cfg_if! {
+            if #[cfg(target_os = "macos")] {
+               use tauri_nspanel::ManagerExt;
+
+               let app_handle_clone = app_handle.clone();
+
+                app_handle.run_on_main_thread(move || {
+                   let panel = app_handle_clone.get_webview_panel(MAIN_WINDOW_LABEL).unwrap();
+
+                    panel.show_and_make_key();
+                }).unwrap();
+            } else {
+                let _ = window.show();
+                let _ = window.unminimize();
+                // The Window Management (WM) extension (macOS-only) controls the
+                // frontmost window.  Setting focus on macOS makes Coco the frontmost
+                // window, which means the WM extension would control Coco instead of other
+                // windows, which is not what we want.
+                //
+                // On Linux/Windows, however, setting focus is a necessity to ensure that
+                // users open Coco's window, then they can start typing, without needing
+                // to click on the window.
+                let _ = window.set_focus();
+            }
+        };
 
         let _ = app_handle.emit("show-coco", ());
     }
 }
 
 #[tauri::command]
-async fn hide_coco(app: AppHandle) {
-    if let Some(window) = app.get_webview_window(MAIN_WINDOW_LABEL) {
-        if let Err(err) = window.hide() {
-            log::error!("Failed to hide the window: {}", err);
+async fn hide_coco(app_handle: AppHandle) {
+    cfg_if::cfg_if! {
+        if #[cfg(target_os = "macos")] {
+            use tauri_nspanel::ManagerExt;
+
+            let app_handle_clone = app_handle.clone();
+            app_handle.run_on_main_thread(move || {
+                let panel = app_handle_clone.get_webview_panel(MAIN_WINDOW_LABEL).expect("cannot find the main window/panel");
+                panel.hide();
+            }).unwrap();
         } else {
-            log::debug!("Window successfully hidden.");
+            let window = app_handle.get_webview_window(MAIN_WINDOW_LABEL).expect("cannot find the main window");
+
+            if let Err(err) = window.hide() {
+                log::error!("Failed to hide the window: {}", err);
+            } else {
+                log::debug!("Window successfully hidden.");
+            }
         }
-    } else {
-        log::error!("Main window not found.");
-    }
+    };
 }
 
 fn move_window_to_active_monitor(window: &WebviewWindow) {
@@ -473,135 +454,3 @@ async fn hide_check(app_handle: AppHandle) {
 
     window.hide().unwrap();
 }
-
-/// Log format:
-///
-/// ```text
-/// [time] [log level] [file module:line] message
-/// ```
-///
-/// Example:
-///
-///
-/// ```text
-/// [05-11 17:00:00] [INF] [coco_lib:625] Coco-AI started
-/// ```
-fn set_up_tauri_logger() -> TauriPlugin<tauri::Wry> {
-    use log::Level;
-    use log::LevelFilter;
-    use tauri_plugin_log::Builder;
-
-    /// Coco-AI app's default log level.
-    const DEFAULT_LOG_LEVEL: LevelFilter = LevelFilter::Info;
-    const LOG_LEVEL_ENV_VAR: &str = "COCO_LOG";
-
-    fn format_log_level(level: Level) -> &'static str {
-        match level {
-            Level::Trace => "TRC",
-            Level::Debug => "DBG",
-            Level::Info => "INF",
-            Level::Warn => "WAR",
-            Level::Error => "ERR",
-        }
-    }
-
-    fn format_target_and_line(record: &log::Record) -> String {
-        let mut str = record.target().to_string();
-        if let Some(line) = record.line() {
-            str.push(':');
-            str.push_str(&line.to_string());
-        }
-
-        str
-    }
-
-    /// Allow us to configure dynamic log levels via environment variable `COCO_LOG`.
-    ///
-    /// Generally, it mirros the behavior of `env_logger`. Syntax: `COCO_LOG=[target][=][level][,...]`
-    ///
-    /// * If this environment variable is not set, use the default log level.
-    /// * If it is set, respect it:
-    ///
-    /// * `COCO_LOG=coco_lib` turns on all logging for the `coco_lib` module, which is
-    ///   equivalent to `COCO_LOG=coco_lib=trace`
-    /// * `COCO_LOG=trace` turns on all logging for the application, regardless of its name
-    /// * `COCO_LOG=TRACE` turns on all logging for the application, regardless of its name (same as previous)
-    /// * `COCO_LOG=reqwest=debug` turns on debug logging for `reqwest`
-    /// * `COCO_LOG=trace,tauri=off` turns on all the logging except for the logs come from `tauri`
-    /// * `COCO_LOG=off` turns off all logging for the application
-    /// * `COCO_LOG=` Since the value is empty, turns off all logging for the application as well
-    fn dynamic_log_level(mut builder: Builder) -> Builder {
-        let Some(log_levels) = std::env::var_os(LOG_LEVEL_ENV_VAR) else {
-            return builder.level(DEFAULT_LOG_LEVEL);
-        };
-
-        builder = builder.level(LevelFilter::Off);
-
-        let log_levels = log_levels.into_string().unwrap_or_else(|e| {
-            panic!(
-                "The value '{}' set in environment varaible '{}' is not UTF-8 encoded",
-                // Cannot use `.display()` here becuase that requires MSRV 1.87.0
-                e.to_string_lossy(),
-                LOG_LEVEL_ENV_VAR
-            )
-        });
-
-        // COCO_LOG=[target][=][level][,...]
-        let target_log_levels = log_levels.split(',');
-        for target_log_level in target_log_levels {
-            #[allow(clippy::collapsible_else_if)]
-            if let Some(char_index) = target_log_level.chars().position(|c| c == '=') {
-                let (target, equal_sign_and_level) = target_log_level.split_at(char_index);
-                // Remove the equal sign, we know it takes 1 byte
-                let level = &equal_sign_and_level[1..];
-
-                if let Ok(level) = level.parse::<LevelFilter>() {
-                    // Here we have to call `.to_string()` because `Cow<'static, str>` requires `&'static str`
-                    builder = builder.level_for(target.to_string(), level);
-                } else {
-                    panic!(
-                        "log level '{}' set in '{}={}' is invalid",
-                        level, target, level
-                    );
-                }
-            } else {
-                if let Ok(level) = target_log_level.parse::<LevelFilter>() {
-                    // This is a level
-                    builder = builder.level(level);
-                } else {
-                    // This is a target, enable all the logging
-                    //
-                    // Here we have to call `.to_string()` because `Cow<'static, str>` requires `&'static str`
-                    builder = builder.level_for(target_log_level.to_string(), LevelFilter::Trace);
-                }
-            }
-        }
-
-        builder
-    }
-
-    // When running the built binary, set `COCO_LOG` to `coco_lib=trace` to capture all logs
-    // that come from Coco in the log file, which helps with debugging.
-    if !tauri::is_dev() {
-        // We have absolutely no guarantee that we (We have control over the Rust
-        // code, but definitely no idea about the libc C code, all the shared objects
-        // that we will link) will not concurrently read/write `envp`, so just use unsafe.
-        unsafe {
-            std::env::set_var("COCO_LOG", "coco_lib=trace");
-        }
-    }
-
-    let mut builder = tauri_plugin_log::Builder::new();
-    builder = builder.format(|out, message, record| {
-        let now = chrono::Local::now().format("%m-%d %H:%M:%S");
-        let level = format_log_level(record.level());
-        let target_and_line = format_target_and_line(record);
-        out.finish(format_args!(
-            "[{}] [{}] [{}] {}",
-            now, level, target_and_line, message
-        ));
-    });
-    builder = dynamic_log_level(builder);
-
-    builder.build()
-}

src-tauri/src/main.rs

@@ -1,42 +1,9 @@
 // Prevents additional console window on Windows in release, DO NOT REMOVE!!
 #![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
 
+use coco_lib::util::logging::app_log_dir;
 use std::fs::OpenOptions;
 use std::io::Write;
-use std::path::PathBuf;
-
-/// Helper function to return the log directory.
-///
-/// This should return the same value as `tauri_app_handle.path().app_log_dir().unwrap()`.
-fn app_log_dir() -> PathBuf {
-    // This function `app_log_dir()` is for the panic hook, which should be set
-    // before Tauri performs any initialization. At that point, we do not have
-    // access to the identifier provided by Tauri, so we need to define our own
-    // one here.
-    //
-    // NOTE: If you update identifier in the following files, update this one
-    // as well!
-    //
-    // src-tauri/tauri.linux.conf.json
-    // src-tauri/Entitlements.plist
-    // src-tauri/tauri.conf.json
-    // src-tauri/Info.plist
-    const IDENTIFIER: &str = "rs.coco.app";
-
-    #[cfg(target_os = "macos")]
-    let path = dirs::home_dir()
-        .expect("cannot find the home directory, Coco should never run in such a environment")
-        .join("Library/Logs")
-        .join(IDENTIFIER);
-
-    #[cfg(not(target_os = "macos"))]
-    let path = dirs::data_local_dir()
-        .expect("app local dir is None, we should not encounter this")
-        .join(IDENTIFIER)
-        .join("logs");
-
-    path
-}
 
 /// Set up panic hook to log panic information to a file
 fn setup_panic_hook() {

src-tauri/src/search/mod.rs

@@ -10,13 +10,10 @@ use function_name::named;
 use futures::StreamExt;
 use futures::stream::FuturesUnordered;
 use reqwest::StatusCode;
-use std::cmp::Reverse;
 use std::collections::HashMap;
-use std::collections::HashSet;
 use std::sync::Arc;
 use tauri::{AppHandle, Manager};
 use tokio::time::{Duration, timeout};
-
 #[named]
 #[tauri::command]
 pub async fn query_coco_fusion(
@@ -187,7 +184,6 @@ async fn query_coco_fusion_multi_query_sources(
 
     let mut futures = FuturesUnordered::new();
 
-    let query_source_list_len = query_source_trait_object_list.len();
     for query_source_trait_object in query_source_trait_object_list {
         let query_source = query_source_trait_object.get_type().clone();
         let tauri_app_handle_clone = tauri_app_handle.clone();
@@ -208,14 +204,8 @@ async fn query_coco_fusion_multi_query_sources(
     }
 
     let mut total_hits = 0;
-    let mut need_rerank = true; //TODO set default to false when boost supported in Pizza
     let mut failed_requests = Vec::new();
-    let mut all_hits: Vec<(String, QueryHits, f64)> = Vec::new();
-    let mut hits_per_source: HashMap<String, Vec<(QueryHits, f64)>> = HashMap::new();
-
-    if query_source_list_len > 1 {
-        need_rerank = true; // If we have more than one source, we need to rerank the hits
-    }
+    let mut all_hits_grouped_by_source_id: HashMap<String, Vec<QueryHits>> = HashMap::new();
 
     while let Some((query_source, timeout_result)) = futures.next().await {
         match timeout_result {
@@ -246,12 +236,10 @@ async fn query_coco_fusion_multi_query_sources(
                             document,
                         };
 
-                        all_hits.push((source_id.clone(), query_hit.clone(), score));
-
-                        hits_per_source
+                        all_hits_grouped_by_source_id
                             .entry(source_id.clone())
                             .or_insert_with(Vec::new)
-                            .push((query_hit, score));
+                            .push(query_hit);
                     }
                 }
                 Err(search_error) => {
@@ -267,109 +255,117 @@ async fn query_coco_fusion_multi_query_sources(
         }
     }
 
-    // Sort hits within each source by score (descending)
-    for hits in hits_per_source.values_mut() {
-        hits.sort_by(|a, b| b.1.partial_cmp(&a.1).unwrap_or(std::cmp::Ordering::Greater));
+    let n_sources = all_hits_grouped_by_source_id.len();
+
+    if n_sources == 0 {
+        return Ok(MultiSourceQueryResponse {
+            failed: Vec::new(),
+            hits: Vec::new(),
+            total_hits: 0,
+        });
     }
 
-    let total_sources = hits_per_source.len();
-    let max_hits_per_source = if total_sources > 0 {
-        size as usize / total_sources
-    } else {
-        size as usize
-    };
+    /*
+     * Sort hits within each source by score (descending) in case data sources
+     * do not sort them
+     */
+    for hits in all_hits_grouped_by_source_id.values_mut() {
+        hits.sort_by(|a, b| {
+            b.score
+                .partial_cmp(&a.score)
+                .unwrap_or(std::cmp::Ordering::Greater)
+        });
+    }
+
+    /*
+     * Collect hits evenly across sources, to ensure:
+     *
+     * 1. All sources have hits returned
+     * 2. Query sources with many hits won't dominate
+     */
+    let mut final_hits_grouped_by_source_id: HashMap<String, Vec<QueryHits>> = HashMap::new();
+    let mut pruned: HashMap<&str, &[QueryHits]> = HashMap::new();
+
+    // max_hits_per_source could be 0, then `final_hits_grouped_by_source_id`
+    // would be empty. But we don't need to worry about this case as we will
+    // populate hits later.
+    let max_hits_per_source = size as usize / n_sources;
+    for (source_id, hits) in all_hits_grouped_by_source_id.iter() {
+        let hits_taken = if hits.len() > max_hits_per_source {
+            pruned.insert(&source_id, &hits[max_hits_per_source..]);
+            hits[0..max_hits_per_source].to_vec()
+        } else {
+            hits.clone()
+        };
+
+        final_hits_grouped_by_source_id.insert(source_id.clone(), hits_taken);
+    }
+
+    let final_hits_len = final_hits_grouped_by_source_id
+        .iter()
+        .fold(0, |acc: usize, (_source_id, hits)| acc + hits.len());
+    let pruned_len = pruned
+        .iter()
+        .fold(0, |acc: usize, (_source_id, hits)| acc + hits.len());
+
+    /*
+     * If we still need more hits, take the highest-scoring from `pruned`
+     *
+     * `pruned` contains sorted arrays, we scan it in a way similar to
+     * how n-way-merge-sort extracts the element with the greatest value.
+     */
+    if final_hits_len < size as usize {
+        let n_need = size as usize - final_hits_len;
+        let n_have = pruned_len;
+        let n_take = n_have.min(n_need);
+
+        for _ in 0..n_take {
+            let mut highest_score_hit: Option<(&str, &QueryHits)> = None;
+            for (source_id, sorted_hits) in pruned.iter_mut() {
+                if sorted_hits.is_empty() {
+                    continue;
+                }
+
+                let hit = &sorted_hits[0];
+
+                let have_higher_score_hit = match highest_score_hit {
+                    Some((_, current_highest_score_hit)) => {
+                        hit.score > current_highest_score_hit.score
+                    }
+                    None => true,
+                };
+
+                if have_higher_score_hit {
+                    highest_score_hit = Some((*source_id, hit));
+
+                    // Advance sorted_hits by 1 element, if have
+                    if sorted_hits.len() == 1 {
+                        *sorted_hits = &[];
+                    } else {
+                        *sorted_hits = &sorted_hits[1..];
+                    }
+                }
+            }
+
+            let (source_id, hit) = highest_score_hit.expect("`pruned` should contain at least `n_take` elements so `highest_score_hit` should be set");
+
+            final_hits_grouped_by_source_id
+                .get_mut(source_id)
+                .expect("all the source_ids stored in `pruned` come from `final_hits_grouped_by_source_id`, so it should exist")
+                .push(hit.clone());
+        }
+    }
+
+    /*
+     * Re-rank the final hits
+     */
+    if n_sources > 1 {
+        boosted_levenshtein_rerank(&query_keyword, &mut final_hits_grouped_by_source_id);
+    }
 
     let mut final_hits = Vec::new();
-    let mut seen_docs = HashSet::new(); // To track documents we've already added
-
-    // Distribute hits fairly across sources
-    for (_source_id, hits) in &mut hits_per_source {
-        let take_count = hits.len().min(max_hits_per_source);
-        for (doc, score) in hits.drain(0..take_count) {
-            if !seen_docs.contains(&doc.document.id) {
-                seen_docs.insert(doc.document.id.clone());
-                log::debug!(
-                    "collect doc: {}, {:?}, {}",
-                    doc.document.id,
-                    doc.document.title,
-                    score
-                );
-                final_hits.push(doc);
-            }
-        }
-    }
-
-    log::debug!("final hits: {:?}", final_hits.len());
-
-    let mut unique_sources = HashSet::new();
-    for hit in &final_hits {
-        if let Some(source) = &hit.source {
-            if source.id != crate::extension::built_in::calculator::DATA_SOURCE_ID {
-                unique_sources.insert(&source.id);
-            }
-        }
-    }
-
-    log::debug!(
-        "Multiple sources found: {:?}, no rerank needed",
-        unique_sources
-    );
-
-    if unique_sources.len() < 1 {
-        need_rerank = false; // If we have hits from multiple sources, we don't need to rerank
-    }
-
-    if need_rerank && final_hits.len() > 1 {
-        // Precollect (index, title)
-        let titles_to_score: Vec<(usize, &str)> = final_hits
-            .iter()
-            .enumerate()
-            .filter_map(|(idx, hit)| {
-                let source = hit.source.as_ref()?;
-                let title = hit.document.title.as_deref()?;
-
-                if source.id != crate::extension::built_in::calculator::DATA_SOURCE_ID {
-                    Some((idx, title))
-                } else {
-                    None
-                }
-            })
-            .collect();
-
-        // Score them
-        let scored_hits = boosted_levenshtein_rerank(query_keyword.as_str(), titles_to_score);
-
-        // Sort descending by score
-        let mut scored_hits = scored_hits;
-        scored_hits.sort_by_key(|&(_, score)| Reverse((score * 1000.0) as u64));
-
-        // Apply new scores to final_hits
-        for (idx, score) in scored_hits.into_iter().take(size as usize) {
-            final_hits[idx].score = score;
-        }
-    } else if final_hits.len() < size as usize {
-        // If we still need more hits, take the highest-scoring remaining ones
-
-        let remaining_needed = size as usize - final_hits.len();
-
-        // Sort all hits by score descending, removing duplicates by document ID
-        all_hits.sort_by(|a, b| b.2.partial_cmp(&a.2).unwrap_or(std::cmp::Ordering::Equal));
-
-        let extra_hits = all_hits
-            .into_iter()
-            .filter(|(source_id, _, _)| hits_per_source.contains_key(source_id)) // Only take from known sources
-            .filter_map(|(_, doc, _)| {
-                if !seen_docs.contains(&doc.document.id) {
-                    seen_docs.insert(doc.document.id.clone());
-                    Some(doc)
-                } else {
-                    None
-                }
-            })
-            .take(remaining_needed)
-            .collect::<Vec<_>>();
-
-        final_hits.extend(extra_hits);
+    for (_source_id, hits) in final_hits_grouped_by_source_id {
+        final_hits.extend(hits);
     }
 
     // **Sort final hits by score descending**
@@ -379,6 +375,11 @@ async fn query_coco_fusion_multi_query_sources(
             .unwrap_or(std::cmp::Ordering::Equal)
     });
 
+    // Truncate `final_hits` in case it contains more than `size` hits
+    //
+    // Technically, we are safe to not do this. But since it is trivial, double-check it.
+    final_hits.truncate(size as usize);
+
     if final_hits.len() < 5 {
         //TODO: Add a recommendation system to suggest more sources
         log::info!(
@@ -395,30 +396,85 @@ async fn query_coco_fusion_multi_query_sources(
     })
 }
 
-fn boosted_levenshtein_rerank(query: &str, titles: Vec<(usize, &str)>) -> Vec<(usize, f64)> {
-    use strsim::levenshtein;
+use std::collections::HashSet;
+use strsim::levenshtein;
 
+fn boosted_levenshtein_rerank(
+    query: &str,
+    all_hits_grouped_by_source_id: &mut HashMap<String, Vec<QueryHits>>,
+) {
     let query_lower = query.to_lowercase();
 
-    titles
-        .into_iter()
-        .map(|(idx, title)| {
-            let mut score = 0.0;
+    for (source_id, hits) in all_hits_grouped_by_source_id.iter_mut() {
+        // Skip special sources like calculator
+        if source_id == crate::extension::built_in::calculator::DATA_SOURCE_ID {
+            continue;
+        }
 
-            if title.contains(query) {
-                score += 0.4;
-            } else if title.to_lowercase().contains(&query_lower) {
-                score += 0.2;
-            }
+        for hit in hits.iter_mut() {
+            let document_title = hit.document.title.as_deref().unwrap_or("");
+            let document_title_lowercase = document_title.to_lowercase();
 
-            let dist = levenshtein(&query_lower, &title.to_lowercase());
-            let max_len = query_lower.len().max(title.len());
-            if max_len > 0 {
-                score += (1.0 - (dist as f64 / max_len as f64)) as f32;
-            }
+            let new_score = {
+                let mut score = 0.0;
 
-            (idx, score.min(1.0) as f64)
-        })
+                // --- Exact or substring boost ---
+                if document_title.contains(query) {
+                    score += 0.4;
+                } else if document_title_lowercase.contains(&query_lower) {
+                    score += 0.2;
+                }
+
+                // --- Levenshtein distance (character similarity) ---
+                let dist = levenshtein(&query_lower, &document_title_lowercase);
+                let max_len = query_lower.len().max(document_title.len());
+                let levenshtein_score = if max_len > 0 {
+                    (1.0 - (dist as f64 / max_len as f64)) as f32
+                } else {
+                    0.0
+                };
+
+                // --- Jaccard similarity (token overlap) ---
+                let jaccard_score = jaccard_similarity(&query_lower, &document_title_lowercase);
+
+                // --- Combine scores (weights adjustable) ---
+                // Levenshtein emphasizes surface similarity
+                // Jaccard emphasizes term overlap (semantic hint)
+                let hybrid_score = 0.7 * levenshtein_score + 0.3 * jaccard_score;
+
+                // --- Apply hybrid score ---
+                score += hybrid_score;
+
+                // --- Limit score range ---
+                score.min(1.0) as f64
+            };
+
+            hit.score = new_score;
+        }
+    }
+}
+
+/// Compute token-based Jaccard similarity
+fn jaccard_similarity(a: &str, b: &str) -> f32 {
+    let a_tokens: HashSet<_> = tokenize(a).into_iter().collect();
+    let b_tokens: HashSet<_> = tokenize(b).into_iter().collect();
+
+    if a_tokens.is_empty() || b_tokens.is_empty() {
+        return 0.0;
+    }
+
+    let intersection = a_tokens.intersection(&b_tokens).count() as f32;
+    let union = a_tokens.union(&b_tokens).count() as f32;
+
+    intersection / union
+}
+
+/// Basic tokenizer (case-insensitive, alphanumeric words only)
+fn tokenize(text: &str) -> Vec<String> {
+    text.to_lowercase()
+        .split(|c: char| !c.is_alphanumeric())
+        .filter(|s| !s.is_empty())
+        .map(|s| s.to_string())
         .collect()
 }
 

src-tauri/src/server/auth.rs

@@ -9,7 +9,7 @@ use tauri::AppHandle;
 #[allow(dead_code)]
 fn request_access_token_url(request_id: &str) -> String {
     // Remove the endpoint part and keep just the path for the request
-    format!("/auth/request_access_token?request_id={}", request_id)
+    format!("/auth/access_token?request_id={}", request_id)
 }
 
 #[tauri::command]

src-tauri/src/setup/linux.rs

@@ -1,7 +1,7 @@
-use tauri::{App, WebviewWindow};
+use tauri::{AppHandle, WebviewWindow};
 
 pub fn platform(
-    _app: &mut App,
+    _tauri_app_handle: &AppHandle,
     _main_window: WebviewWindow,
     _settings_window: WebviewWindow,
     _check_window: WebviewWindow,

src-tauri/src/setup/mac.rs

@@ -1,130 +1,67 @@
 //! credits to: https://github.com/ayangweb/ayangweb-EcoPaste/blob/169323dbe6365ffe4abb64d867439ed2ea84c6d1/src-tauri/src/core/setup/mac.rs
 
-use cocoa::appkit::NSWindow;
-use tauri::Manager;
-use tauri::{App, AppHandle, Emitter, EventTarget, WebviewWindow};
-use tauri_nspanel::{WebviewWindowExt, cocoa::appkit::NSWindowCollectionBehavior, panel_delegate};
-
 use crate::common::MAIN_WINDOW_LABEL;
-
-#[allow(non_upper_case_globals)]
-const NSWindowStyleMaskNonActivatingPanel: i32 = 1 << 7;
+use tauri::{AppHandle, Emitter, EventTarget, Manager, WebviewWindow};
+use tauri_nspanel::{CollectionBehavior, PanelLevel, StyleMask, WebviewWindowExt, tauri_panel};
 
 const WINDOW_FOCUS_EVENT: &str = "tauri://focus";
 const WINDOW_BLUR_EVENT: &str = "tauri://blur";
-const WINDOW_MOVED_EVENT: &str = "tauri://move";
-const WINDOW_RESIZED_EVENT: &str = "tauri://resize";
+
+tauri_panel! {
+    panel!(NsPanel {
+        config: {
+            is_floating_panel: true,
+            can_become_key_window: true,
+            can_become_main_window: false
+        }
+    })
+
+    panel_event!(NsPanelEventHandler {
+        window_did_become_key(notification: &NSNotification) -> (),
+        window_did_resign_key(notification: &NSNotification) -> (),
+    })
+}
 
 pub fn platform(
-    _app: &mut App,
+    _tauri_app_handle: &AppHandle,
     main_window: WebviewWindow,
     _settings_window: WebviewWindow,
     _check_window: WebviewWindow,
 ) {
     // Convert ns_window to ns_panel
-    let panel = main_window.to_panel().unwrap();
+    let panel = main_window.to_panel::<NsPanel>().unwrap();
 
-    // Make the window above the dock
-    panel.set_level(20);
+    // set level
+    panel.set_level(PanelLevel::Utility.value());
 
     // Do not steal focus from other windows
-    panel.set_style_mask(NSWindowStyleMaskNonActivatingPanel);
+    panel.set_style_mask(StyleMask::empty().nonactivating_panel().into());
 
-    // Share the window across all desktop spaces and full screen
-    panel.set_collection_behaviour(
-        NSWindowCollectionBehavior::NSWindowCollectionBehaviorMoveToActiveSpace
-            | NSWindowCollectionBehavior::NSWindowCollectionBehaviorStationary
-            | NSWindowCollectionBehavior::NSWindowCollectionBehaviorFullScreenAuxiliary,
+    // Open the window in the active workspace and full screen
+    panel.set_collection_behavior(
+        CollectionBehavior::new()
+            .stationary()
+            .move_to_active_space()
+            .full_screen_auxiliary()
+            .into(),
     );
 
-    // Define the panel's delegate to listen to panel window events
-    let delegate = panel_delegate!(EcoPanelDelegate {
-        window_did_become_key,
-        window_did_resign_key,
-        window_did_resize,
-        window_did_move
-    });
+    let handler = NsPanelEventHandler::new();
 
-    // Set event listeners for the delegate
-    delegate.set_listener(Box::new(move |delegate_name: String| {
+    let window = main_window.clone();
+    handler.window_did_become_key(move |_| {
         let target = EventTarget::labeled(MAIN_WINDOW_LABEL);
 
-        let window_move_event = || {
-            if let Ok(position) = main_window.outer_position() {
-                let _ = main_window.emit_to(target.clone(), WINDOW_MOVED_EVENT, position);
-            }
-        };
+        let _ = window.emit_to(target, WINDOW_FOCUS_EVENT, true);
+    });
 
-        match delegate_name.as_str() {
-            // Called when the window gets keyboard focus
-            "window_did_become_key" => {
-                let _ = main_window.emit_to(target, WINDOW_FOCUS_EVENT, true);
-            }
-            // Called when the window loses keyboard focus
-            "window_did_resign_key" => {
-                let _ = main_window.emit_to(target, WINDOW_BLUR_EVENT, true);
-            }
-            // Called when the window size changes
-            "window_did_resize" => {
-                window_move_event();
+    let window = main_window.clone();
+    handler.window_did_resign_key(move |_| {
+        let target = EventTarget::labeled(MAIN_WINDOW_LABEL);
 
-                if let Ok(size) = main_window.inner_size() {
-                    let _ = main_window.emit_to(target, WINDOW_RESIZED_EVENT, size);
-                }
-            }
-            // Called when the window position changes
-            "window_did_move" => window_move_event(),
-            _ => (),
-        }
-    }));
+        let _ = window.emit_to(target, WINDOW_BLUR_EVENT, true);
+    });
 
     // Set the delegate object for the window to handle window events
-    panel.set_delegate(delegate);
-}
-
-/// Change NS window attribute between `NSWindowCollectionBehaviorCanJoinAllSpaces`
-/// and `NSWindowCollectionBehaviorMoveToActiveSpace` accordingly.
-///
-/// NOTE: this tauri command is not async because we should run it in the main
-/// thread, or `ns_window.setCollectionBehavior_(collection_behavior)` would lead
-/// to UB.
-#[tauri::command]
-pub(crate) fn toggle_move_to_active_space_attribute(tauri_app_hanlde: AppHandle) {
-    use cocoa::appkit::NSWindowCollectionBehavior;
-    use cocoa::base::id;
-
-    let main_window = tauri_app_hanlde
-        .get_webview_window(MAIN_WINDOW_LABEL)
-        .unwrap();
-    let ns_window = main_window.ns_window().unwrap() as id;
-    let mut collection_behavior = unsafe { ns_window.collectionBehavior() };
-    let join_all_spaces = collection_behavior
-        .contains(NSWindowCollectionBehavior::NSWindowCollectionBehaviorCanJoinAllSpaces);
-    let move_to_active_space = collection_behavior
-        .contains(NSWindowCollectionBehavior::NSWindowCollectionBehaviorMoveToActiveSpace);
-
-    match (join_all_spaces, move_to_active_space) {
-        (true, false) => {
-            collection_behavior
-                .remove(NSWindowCollectionBehavior::NSWindowCollectionBehaviorCanJoinAllSpaces);
-            collection_behavior
-                .insert(NSWindowCollectionBehavior::NSWindowCollectionBehaviorMoveToActiveSpace);
-        }
-        (false, true) => {
-            collection_behavior
-                .remove(NSWindowCollectionBehavior::NSWindowCollectionBehaviorMoveToActiveSpace);
-            collection_behavior
-                .insert(NSWindowCollectionBehavior::NSWindowCollectionBehaviorCanJoinAllSpaces);
-        }
-        _ => {
-            panic!(
-                "invalid NS window attribute, NSWindowCollectionBehaviorCanJoinAllSpaces is set [{}], NSWindowCollectionBehaviorMoveToActiveSpace is set [{}]",
-                join_all_spaces, move_to_active_space
-            );
-        }
-    }
-
-    unsafe {
-        ns_window.setCollectionBehavior_(collection_behavior);
-    }
+    panel.set_event_handler(Some(handler.as_ref()));
 }

src-tauri/src/setup/mod.rs

@@ -1,4 +1,10 @@
-use tauri::{App, WebviewWindow};
+use crate::GLOBAL_TAURI_APP_HANDLE;
+use crate::autostart;
+use crate::common::register::SearchSourceRegistry;
+use crate::util::app_lang::update_app_lang;
+use std::sync::atomic::AtomicBool;
+use std::sync::atomic::Ordering;
+use tauri::{AppHandle, Manager, WebviewWindow};
 
 #[cfg(target_os = "macos")]
 mod mac;
@@ -19,7 +25,7 @@ pub use windows::*;
 pub use linux::*;
 
 pub fn default(
-    app: &mut App,
+    tauri_app_handle: &AppHandle,
     main_window: WebviewWindow,
     settings_window: WebviewWindow,
     check_window: WebviewWindow,
@@ -29,9 +35,83 @@ pub fn default(
     main_window.open_devtools();
 
     platform(
-        app,
+        tauri_app_handle,
         main_window.clone(),
         settings_window.clone(),
         check_window.clone(),
     );
 }
+
+/// Indicates if the setup job is completed.
+static BACKEND_SETUP_COMPLETED: AtomicBool = AtomicBool::new(false);
+/// The function `backup_setup()` may be called concurrently, use this lock to
+/// synchronize that only 1 async task can do the actual setup job.
+static MUTEX_LOCK: tokio::sync::Mutex<()> = tokio::sync::Mutex::const_new(());
+
+/// This function includes the setup job that has to be coordinated with the
+/// frontend, or the App will panic due to races[1].  The way we coordinate is to
+/// expose this function as a Tauri command, and let the frontend code invoke
+/// it.
+///
+/// The frontend code should ensure that:
+///
+/// 1. This command gets called before invoking other commands.
+/// 2. This command should only be called once.
+///
+/// [1]: For instance, Tauri command `list_extensions()` relies on an in-memory
+/// extension list that won't be initialized until `init_extensions()` gets
+/// called.  If the frontend code invokes `list_extensions()` before `init_extension()`
+/// gets executed, we get a panic.
+#[tauri::command]
+pub(crate) async fn backend_setup(tauri_app_handle: AppHandle, app_lang: String) {
+    if BACKEND_SETUP_COMPLETED.load(Ordering::Relaxed) {
+        return;
+    }
+
+    // Race to let one async task do the setup job
+    let _guard = MUTEX_LOCK.lock().await;
+
+    // Re-check in case the current async task is not the first one that acquires
+    // the lock
+    if BACKEND_SETUP_COMPLETED.load(Ordering::Relaxed) {
+        return;
+    }
+
+    GLOBAL_TAURI_APP_HANDLE
+        .set(tauri_app_handle.clone())
+        .expect("global tauri AppHandle already initialized");
+    log::trace!("global Tauri AppHandle set");
+
+    let registry = SearchSourceRegistry::default();
+    tauri_app_handle.manage(registry); // Store registry in Tauri's app state
+
+    // This has to be called before initializing extensions as doing that
+    // requires access to the shortcut store, which will be set by this
+    // function.
+    //
+    //
+    // Windows requires that hotkey setup has to be done on the main thread, or
+    // we will get error "ERROR_WINDOW_OF_OTHER_THREAD 1408 (0x580)"
+    let tauri_app_handle_clone = tauri_app_handle.clone();
+    tauri_app_handle
+        .run_on_main_thread(move || {
+            crate::shortcut::enable_shortcut(&tauri_app_handle_clone);
+        })
+        .expect("failed to run this closure on the main thread");
+
+    crate::init(&tauri_app_handle).await;
+
+    if let Err(err) = crate::extension::init_extensions(&tauri_app_handle).await {
+        log::error!(
+            "failed to initialize extension-related stuff, error [{}]",
+            err
+        );
+    }
+
+    autostart::ensure_autostart_state_consistent(&tauri_app_handle).unwrap();
+
+    update_app_lang(app_lang).await;
+
+    // Invoked, now update the state
+    BACKEND_SETUP_COMPLETED.store(true, Ordering::Relaxed);
+}

src-tauri/src/setup/windows.rs

@@ -1,7 +1,7 @@
-use tauri::{App, WebviewWindow};
+use tauri::{AppHandle, WebviewWindow};
 
 pub fn platform(
-    _app: &mut App,
+    _tauri_app_handle: &AppHandle,
     _main_window: WebviewWindow,
     _settings_window: WebviewWindow,
     _check_window: WebviewWindow,

src-tauri/src/shortcut.rs

@@ -1,5 +1,6 @@
+use crate::common::MAIN_WINDOW_LABEL;
 use crate::{COCO_TAURI_STORE, hide_coco, show_coco};
-use tauri::{App, AppHandle, Manager, async_runtime};
+use tauri::{AppHandle, Manager, async_runtime};
 use tauri_plugin_global_shortcut::{GlobalShortcutExt, Shortcut, ShortcutState};
 use tauri_plugin_store::{JsonValue, StoreExt};
 
@@ -16,9 +17,9 @@ const DEFAULT_SHORTCUT: &str = "command+shift+space";
 const DEFAULT_SHORTCUT: &str = "ctrl+shift+space";
 
 /// Set up the shortcut upon app start.
-pub fn enable_shortcut(app: &App) {
+pub fn enable_shortcut(tauri_app_handle: &AppHandle) {
     log::trace!("setting up Coco hotkey");
-    let store = app
+    let store = tauri_app_handle
         .store(COCO_TAURI_STORE)
         .expect("creating a store should not fail");
 
@@ -33,7 +34,7 @@ pub fn enable_shortcut(app: &App) {
         let stored_shortcut = stored_shortcut_str
             .parse::<Shortcut>()
             .expect("stored shortcut string should be valid");
-        _register_shortcut_upon_start(app, stored_shortcut);
+        _register_shortcut_upon_start(tauri_app_handle, stored_shortcut);
     } else {
         store.set(
             COCO_GLOBAL_SHORTCUT,
@@ -42,7 +43,7 @@ pub fn enable_shortcut(app: &App) {
         let default_shortcut = DEFAULT_SHORTCUT
             .parse::<Shortcut>()
             .expect("default shortcut should never be invalid");
-        _register_shortcut_upon_start(app, default_shortcut);
+        _register_shortcut_upon_start(tauri_app_handle, default_shortcut);
     }
     log::trace!("Coco hotkey has been set");
 }
@@ -118,12 +119,9 @@ fn _register_shortcut(app: &AppHandle, shortcut: Shortcut) {
         .unwrap();
 }
 
-use crate::common::MAIN_WINDOW_LABEL;
-
 /// Helper function to register a shortcut, used to set up the shortcut up App's first start.
-fn _register_shortcut_upon_start(app: &App, shortcut: Shortcut) {
-    let handler = app.app_handle();
-    handler
+fn _register_shortcut_upon_start(tauri_app_handle: &AppHandle, shortcut: Shortcut) {
+    tauri_app_handle
         .plugin(
             tauri_plugin_global_shortcut::Builder::new()
                 .with_handler(move |app, scut, event| {
@@ -147,7 +145,10 @@ fn _register_shortcut_upon_start(app: &App, shortcut: Shortcut) {
                 .build(),
         )
         .unwrap();
-    app.global_shortcut().register(shortcut).unwrap();
+    tauri_app_handle
+        .global_shortcut()
+        .register(shortcut)
+        .unwrap();
 }
 
 /// Helper function to get the stored global shortcut, as a string.

src-tauri/src/util/app_lang.rs

@@ -4,7 +4,6 @@
 //! So we duplicate it here **in the MEMORY** and expose a setter method to the
 //! frontend so that the value can be updated and stay update-to-date.
 
-use function_name::named;
 use tokio::sync::RwLock;
 
 #[derive(Debug, Clone, Copy, PartialEq)]
@@ -23,6 +22,10 @@ impl std::fmt::Display for Lang {
     }
 }
 
+/// Frontend code uses "en" and "zh" to represent the Application language.
+///
+/// This impl is not meant to be used as a parser for locale strings such as
+/// "en_US" or "zh_CN".
 impl std::str::FromStr for Lang {
     type Err = String;
 
@@ -38,16 +41,13 @@ impl std::str::FromStr for Lang {
 /// Cache the language config in memory.
 static APP_LANG: RwLock<Option<Lang>> = RwLock::const_new(None);
 
-/// Frontend code uses this interface to update the in-memory cached `APP_LANG` config.
-#[named]
+/// Update the in-memory cached `APP_LANG` config.
 #[tauri::command]
 pub(crate) async fn update_app_lang(lang: String) {
     let app_lang = lang.parse::<Lang>().unwrap_or_else(|e| {
         panic!(
-            "frontend code passes an invalid argument [{}] to interface [{}], parsing error [{}]",
-            lang,
-            function_name!(),
-            e
+            "invalid argument [{}], could not parse it to [struct Lang], parsing error [{}]",
+            lang, e
         )
     });
 

src-tauri/src/util/file.rs

@@ -50,7 +50,7 @@ pub(crate) enum FileType {
     Unknown,
 }
 
-async fn get_file_type(path: &str) -> FileType {
+fn get_file_type(path: &str) -> FileType {
     let path = camino::Utf8Path::new(path);
 
     // stat() is more precise than file extension, use it if possible.
@@ -167,8 +167,13 @@ fn type_to_icon(ty: FileType) -> &'static str {
     }
 }
 
-#[tauri::command]
-pub(crate) async fn get_file_icon(path: String) -> &'static str {
-    let ty = get_file_type(path.as_str()).await;
+/// Synchronous version of `get_file_icon()`.
+pub(crate) fn sync_get_file_icon(path: &str) -> &'static str {
+    let ty = get_file_type(path);
     type_to_icon(ty)
 }
+
+#[tauri::command]
+pub(crate) async fn get_file_icon(path: String) -> &'static str {
+    sync_get_file_icon(&path)
+}

src-tauri/src/util/logging.rs

@@ -0,0 +1,189 @@
+use std::path::PathBuf;
+use tauri::plugin::TauriPlugin;
+
+/// Return the log directory.
+///
+/// We use a custom log directory, which is similar to the one used by
+/// Tauri, except that the "{bundleIdentifier}" will be "Coco AI" rather
+/// than the real identifier.
+///
+/// We do this because our bundle ID ("rs.coco.app") ends with ".app", log directory
+/// "/Users/xxx/Library/Logs/rs.coco.app" is mistakenly thought as an application
+/// by Finder on macOS, making it inconvenient to open. We do not want to change the
+/// bundle identifier. The data directory, which stores all the data, still
+/// references it. So doing that will be a breaking change. Using a custom log
+/// directory make more sense.
+///
+/// ### Platform-specific
+///
+/// |Platform   | Value                                                              | Example                                     |
+/// | --------- | -------------------------------------------------------------------| --------------------------------------------|
+/// | Linux     | `$XDG_DATA_HOME/Coco AI/logs` or `$HOME/.local/share/Coco AI/logs` | `/home/alice/.local/share/Coco AI/logs`     |
+/// | macOS/iOS | `{homeDir}/Library/Logs/Coco AI`                                   | `/Users/Alice/Library/Logs/Coco AI`         |
+/// | Windows   | `{FOLDERID_LocalAppData}/Coco AI/logs`                             | `C:\Users\Alice\AppData\Local\Coco AI\logs` |
+/// | Android   | `{ConfigDir}/logs`                                                 | `/data/data/com.tauri.dev/files/logs`       |
+#[tauri::command]
+pub fn app_log_dir() -> PathBuf {
+    const IDENTIFIER: &str = "Coco AI";
+
+    #[cfg(target_os = "macos")]
+    let path = dirs::home_dir()
+        .expect("cannot find the home directory, Coco should never run in such a environment")
+        .join("Library/Logs")
+        .join(IDENTIFIER);
+
+    #[cfg(not(target_os = "macos"))]
+    let path = dirs::data_local_dir()
+        .expect("app local dir is None, we should not encounter this")
+        .join(IDENTIFIER)
+        .join("logs");
+
+    path
+}
+
+/// Log format:
+///
+/// ```text
+/// [time] [log level] [file module:line] message
+/// ```
+///
+/// Example:
+///
+///
+/// ```text
+/// [05-11 17:00:00] [INF] [coco_lib:625] Coco-AI started
+/// ```
+pub(crate) fn set_up_tauri_logger() -> TauriPlugin<tauri::Wry> {
+    use log::Level;
+    use log::LevelFilter;
+    use tauri_plugin_log::Builder;
+    use tauri_plugin_log::Target;
+    use tauri_plugin_log::TargetKind;
+
+    /// Coco-AI app's default log level.
+    const DEFAULT_LOG_LEVEL: LevelFilter = LevelFilter::Info;
+    const LOG_LEVEL_ENV_VAR: &str = "COCO_LOG";
+
+    fn format_log_level(level: Level) -> &'static str {
+        match level {
+            Level::Trace => "TRC",
+            Level::Debug => "DBG",
+            Level::Info => "INF",
+            Level::Warn => "WAR",
+            Level::Error => "ERR",
+        }
+    }
+
+    fn format_target_and_line(record: &log::Record) -> String {
+        let mut str = record.target().to_string();
+        if let Some(line) = record.line() {
+            str.push(':');
+            str.push_str(&line.to_string());
+        }
+
+        str
+    }
+
+    /// Allow us to configure dynamic log levels via environment variable `COCO_LOG`.
+    ///
+    /// Generally, it mirrors the behavior of `env_logger`. Syntax: `COCO_LOG=[module][=][level][,...]`
+    ///
+    /// * If this environment variable is not set, use the default log level.
+    /// * If it is set, respect it:
+    ///
+    /// * `COCO_LOG=coco_lib` turns on all logging for the `coco_lib` module, which is
+    ///   equivalent to `COCO_LOG=coco_lib=trace`
+    /// * `COCO_LOG=trace` turns on all logging for the application, regardless of its name
+    /// * `COCO_LOG=TRACE` turns on all logging for the application, regardless of its name (same as previous)
+    /// * `COCO_LOG=reqwest=debug` turns on debug logging for `reqwest`
+    /// * `COCO_LOG=trace,tauri=off` turns on all the logging except for the logs come from `tauri`
+    /// * `COCO_LOG=off` turns off all logging for the application
+    /// * `COCO_LOG=` Since the value is empty, turns off all logging for the application as well
+    fn dynamic_log_level(mut builder: Builder) -> Builder {
+        let Some(log_levels) = std::env::var_os(LOG_LEVEL_ENV_VAR) else {
+            return builder.level(DEFAULT_LOG_LEVEL);
+        };
+
+        builder = builder.level(LevelFilter::Off);
+
+        let log_levels = log_levels.into_string().unwrap_or_else(|e| {
+            panic!(
+                "The value '{}' set in environment variable '{}' is not UTF-8 encoded",
+                // Cannot use `.display()` here because that requires MSRV 1.87.0
+                e.to_string_lossy(),
+                LOG_LEVEL_ENV_VAR
+            )
+        });
+
+        // COCO_LOG=[module][=][level][,...]
+        let module_log_levels = log_levels.split(',');
+        for module_log_level in module_log_levels {
+            #[allow(clippy::collapsible_else_if)]
+            if let Some(char_index) = module_log_level.chars().position(|c| c == '=') {
+                let (module, equal_sign_and_level) = module_log_level.split_at(char_index);
+                // Remove the equal sign, we know it takes 1 byte
+                let level = &equal_sign_and_level[1..];
+
+                if let Ok(level) = level.parse::<LevelFilter>() {
+                    // Here we have to call `.to_string()` because `Cow<'static, str>` requires `&'static str`
+                    builder = builder.level_for(module.to_string(), level);
+                } else {
+                    panic!(
+                        "log level '{}' set in '{}={}' is invalid",
+                        level, module, level
+                    );
+                }
+            } else {
+                if let Ok(level) = module_log_level.parse::<LevelFilter>() {
+                    // This is a level
+                    builder = builder.level(level);
+                } else {
+                    // This is a module, enable all the logging
+                    let module = module_log_level;
+                    // Here we have to call `.to_string()` because `Cow<'static, str>` requires `&'static str`
+                    builder = builder.level_for(module.to_string(), LevelFilter::Trace);
+                }
+            }
+        }
+
+        builder
+    }
+
+    // When running the built binary, set `COCO_LOG` to `coco_lib=trace` to capture all logs
+    // that come from Coco in the log file, which helps with debugging.
+    if !tauri::is_dev() {
+        // We have absolutely no guarantee that we (We have control over the Rust
+        // code, but definitely no idea about the libc C code, all the shared objects
+        // that we will link) will not concurrently read/write `envp`, so just use unsafe.
+        unsafe {
+            std::env::set_var("COCO_LOG", "coco_lib=trace");
+        }
+    }
+
+    let mut builder = tauri_plugin_log::Builder::new();
+    builder = builder.format(|out, message, record| {
+        let now = chrono::Local::now().format("%m-%d %H:%M:%S");
+        let level = format_log_level(record.level());
+        let target_and_line = format_target_and_line(record);
+        out.finish(format_args!(
+            "[{}] [{}] [{}] {}",
+            now, level, target_and_line, message
+        ));
+    });
+    builder = dynamic_log_level(builder);
+
+    /*
+     * Use our custom log directory
+     */
+    // We have no public APIs to update targets in-place, so we need to remove
+    // them all, then bring back the correct ones.
+    builder = builder.clear_targets();
+    builder = builder.target(Target::new(TargetKind::Stdout));
+    builder = builder.target(Target::new(TargetKind::Folder {
+        path: app_log_dir(),
+        // Use the default value, which is "Coco-AI.log"
+        file_name: None,
+    }));
+
+    builder.build()
+}

src-tauri/src/util/mod.rs

@@ -1,6 +1,11 @@
 pub(crate) mod app_lang;
 pub(crate) mod file;
+// We need this in main.rs, so it has to be pub
+pub mod logging;
+pub(crate) mod path;
 pub(crate) mod platform;
+pub(crate) mod prevent_default;
+pub(crate) mod system_lang;
 pub(crate) mod updater;
 
 use std::{path::Path, process::Command};
@@ -11,7 +16,7 @@ use tauri_plugin_shell::ShellExt;
 const XDG_CURRENT_DESKTOP: &str = "XDG_CURRENT_DESKTOP";
 
 #[derive(Debug, PartialEq)]
-enum LinuxDesktopEnvironment {
+pub(crate) enum LinuxDesktopEnvironment {
     Gnome,
     Kde,
     Unsupported { xdg_current_desktop: String },
@@ -63,7 +68,7 @@ impl LinuxDesktopEnvironment {
 }
 
 /// None means that it is likely that we do not have a desktop environment.
-fn get_linux_desktop_environment() -> Option<LinuxDesktopEnvironment> {
+pub(crate) fn get_linux_desktop_environment() -> Option<LinuxDesktopEnvironment> {
     let de_os_str = std::env::var_os(XDG_CURRENT_DESKTOP)?;
     let de_str = de_os_str.into_string().unwrap_or_else(|_os_string| {
         panic!("${} should be UTF-8 encoded", XDG_CURRENT_DESKTOP);

src-tauri/src/util/path.rs

@@ -0,0 +1,12 @@
+#[tauri::command]
+pub(crate) fn path_absolute(path: &str) -> String {
+    // We do not use std::path::absolute() because it does not clean ".."
+    // https://doc.rust-lang.org/stable/std/path/fn.absolute.html#platform-specific-behavior
+    use path_clean::clean;
+
+    let clean_path = clean(path);
+    clean_path
+        .into_os_string()
+        .into_string()
+        .expect("path should be UTF-8 encoded")
+}

src-tauri/src/util/platform.rs

@@ -54,7 +54,6 @@ impl Platform {
     }
 
     /// Returns a set that contains all the platforms.
-    #[cfg(test)] // currently, only used in tests
     pub(crate) fn all() -> std::collections::HashSet<Self> {
         Platform::VARIANTS.into_iter().copied().collect()
     }

src-tauri/src/util/prevent_default.rs

@@ -0,0 +1,13 @@
+pub fn init() -> tauri::plugin::TauriPlugin<tauri::Wry> {
+    #[cfg(debug_assertions)]
+    {
+        use tauri_plugin_prevent_default::Flags;
+
+        tauri_plugin_prevent_default::Builder::new()
+            .with_flags(Flags::all().difference(Flags::CONTEXT_MENU))
+            .build()
+    }
+
+    #[cfg(not(debug_assertions))]
+    tauri_plugin_prevent_default::init()
+}

src-tauri/src/util/system_lang.rs

@@ -0,0 +1,14 @@
+/// Helper function to get the system language.
+///
+/// We cannot return `enum Lang` here because Coco has limited language support
+/// but the OS supports many more languages.
+#[cfg(feature = "use_pizza_engine")]
+pub(crate) fn get_system_lang() -> String {
+    use sys_locale::get_locale;
+
+    // fall back to English (general) when we cannot get the locale
+    //
+    // We replace '-' with '_' in applications-rs, to make the locales match,
+    // we need to do this here as well.
+    get_locale().unwrap_or("en".into()).replace('-', "_")
+}

src-tauri/tauri.conf.json

@@ -129,7 +129,6 @@
     "shell": {},
     "globalShortcut": {},
     "deep-link": {
-      "schema": "coco",
       "mobile": [
         {
           "host": "app.infini.cloud",

src-tauri/tauri.macos.conf.json

@@ -0,0 +1,8 @@
+{
+  "identifier": "rs.coco.app",
+  "bundle": {
+    "macOS": {
+      "entitlements": "./Entitlements.plist"
+    }
+  }
+}

src/api/axiosRequest.ts

@@ -1,5 +1,7 @@
 import axios from "axios";
 
+axios.defaults.withCredentials = true;
+
 import { useAppStore } from "@/stores/appStore";
 
 import {
@@ -78,7 +80,7 @@ export const Get = <T>(
     }
 
     axios
-      .get(baseURL + url, { params })
+      .get(baseURL + url, { params, withCredentials: true })
       .then((result) => {
         let res: FcResponse<T>;
         if (clearFn !== undefined) {
@@ -86,11 +88,6 @@ export const Get = <T>(
         } else {
           res = result?.data as FcResponse<T>;
         }
-        // web component log
-        infoLog({
-          username: "@/api/axiosRequest.ts",
-          logName: url,
-        })(res);
 
         resolve([null, res as FcResponse<T>]);
       })
@@ -115,10 +112,15 @@ export const Post = <T>(
     }
 
     axios
-      .post(baseURL + url, data, {
-        params,
-        headers,
-      } as any)
+      .post(
+        baseURL + url,
+        data,
+        {
+          params,
+          headers,
+          withCredentials: true,
+        } as any
+      )
       .then((result) => {
         resolve([null, result.data as FcResponse<T>]);
       })

src/api/streamFetch.ts

@@ -34,6 +34,7 @@ export async function streamPost({
         ...(headersStorage),
         ...(headers || {}),
       },
+      credentials: "include",
       body: JSON.stringify(body),
     });
 

src/commands/servers.ts

@@ -15,50 +15,10 @@ import {
   MultiSourceQueryResponse,
 } from "@/types/commands";
 import { useAppStore } from "@/stores/appStore";
-import { useAuthStore } from "@/stores/authStore";
-import { useConnectStore } from "@/stores/connectStore";
-import { SETTINGS_WINDOW_LABEL } from "@/constants";
-import platformAdapter from "@/utils/platformAdapter";
-
-export async function getCurrentWindowService() {
-  const currentService = useConnectStore.getState().currentService;
-  const cloudSelectService = useConnectStore.getState().cloudSelectService;
-  const windowLabel = await platformAdapter.getCurrentWindowLabel();
-
-  return windowLabel === SETTINGS_WINDOW_LABEL
-    ? cloudSelectService
-    : currentService;
-}
-
-export async function setCurrentWindowService(service: any) {
-  const windowLabel = await platformAdapter.getCurrentWindowLabel();
-  const { setCurrentService, setCloudSelectService } =
-    useConnectStore.getState();
-
-  return windowLabel === SETTINGS_WINDOW_LABEL
-    ? setCloudSelectService(service)
-    : setCurrentService(service);
-}
-
-export async function handleLogout(serverId?: string) {
-  const setIsCurrentLogin = useAuthStore.getState().setIsCurrentLogin;
-  const { serverList, setServerList } = useConnectStore.getState();
-
-  const service = await getCurrentWindowService();
-
-  const id = serverId || service?.id;
-  if (!id) return;
-
-  // Update the status first
-  setIsCurrentLogin(false);
-  if (service?.id === id) {
-    await setCurrentWindowService({ ...service, profile: null });
-  }
-  const updatedServerList = serverList.map((server) =>
-    server.id === id ? { ...server, profile: null } : server
-  );
-  setServerList(updatedServerList);
-}
+import {
+  getCurrentWindowService,
+  handleLogout,
+} from "@/commands/windowService";
 
 // Endpoints that don't require authentication
 const WHITELIST_SERVERS = [
@@ -78,16 +38,9 @@ async function invokeWithErrorHandler<T>(
   command: string,
   args?: Record<string, any>
 ): Promise<T> {
-  const isCurrentLogin = useAuthStore.getState().isCurrentLogin;
-
   const service = await getCurrentWindowService();
 
-  // Not logged in
-  // console.log("isCurrentLogin", command, isCurrentLogin);
-  if (
-    !WHITELIST_SERVERS.includes(command) &&
-    (!isCurrentLogin || !service?.profile)
-  ) {
+  if (!WHITELIST_SERVERS.includes(command) && !service?.profile) {
     console.error("This command requires authentication");
     throw new Error("This command requires authentication");
   }

src/commands/system.ts

@@ -34,8 +34,4 @@ export function show_check(): Promise<void> {
 
 export function hide_check(): Promise<void> {
   return invoke('hide_check');
-}
-
-export function toggle_move_to_active_space_attribute(): Promise<void> {
-  return invoke('toggle_move_to_active_space_attribute');
 }

src/commands/windowService.ts

@@ -0,0 +1,73 @@
+import { useConnectStore } from "@/stores/connectStore";
+import { SETTINGS_WINDOW_LABEL } from "@/constants";
+import platformAdapter from "@/utils/platformAdapter";
+import { useAuthStore } from "@/stores/authStore";
+import { useExtensionsStore } from "@/stores/extensionsStore";
+
+export async function getCurrentWindowService() {
+  const currentService = useConnectStore.getState().currentService;
+  const cloudSelectService = useConnectStore.getState().cloudSelectService;
+  const windowLabel = await platformAdapter.getCurrentWindowLabel();
+
+  return windowLabel === SETTINGS_WINDOW_LABEL
+    ? cloudSelectService
+    : currentService;
+}
+
+export async function setCurrentWindowService(service: any, isAll?: boolean) {
+  const { setCurrentService, setCloudSelectService } =
+    useConnectStore.getState();
+  // all refresh logout
+  if (isAll) {
+    setCloudSelectService(service);
+    return setCurrentService(service);
+  }
+  // current refresh
+  const windowLabel = await platformAdapter.getCurrentWindowLabel();
+
+  if (windowLabel === SETTINGS_WINDOW_LABEL) {
+    const { currentService } = useConnectStore.getState();
+    const {
+      aiOverviewServer,
+      setAiOverviewServer,
+      quickAiAccessServer,
+      setQuickAiAccessServer,
+    } = useExtensionsStore.getState();
+
+    if (currentService?.id === service.id) {
+      setCurrentService(service);
+    }
+
+    if (aiOverviewServer?.id === service.id) {
+      setAiOverviewServer(service);
+    }
+
+    if (quickAiAccessServer?.id === service.id) {
+      setQuickAiAccessServer(service);
+    }
+
+    return setCloudSelectService(service);
+  }
+
+  return setCurrentService(service);
+}
+
+export async function handleLogout(serverId?: string) {
+  const setIsCurrentLogin = useAuthStore.getState().setIsCurrentLogin;
+  const { serverList, setServerList } = useConnectStore.getState();
+
+  const service = await getCurrentWindowService();
+
+  const id = serverId || service?.id;
+  if (!id) return;
+
+  // Update the status first
+  setIsCurrentLogin(false);
+  if (service?.id === id) {
+    await setCurrentWindowService({ ...service, profile: null }, true);
+  }
+  const updatedServerList = serverList.map((server) =>
+    server.id === id ? { ...server, profile: null } : server
+  );
+  setServerList(updatedServerList);
+}

src/components/Assistant/AssistantFetcher.tsx

@@ -25,7 +25,7 @@ export const AssistantFetcher = ({
     query?: string;
   }) => {
     try {
-      if (unrequitable()) {
+      if (await unrequitable()) {
         return {
           total: 0,
           list: [],

src/components/Assistant/AssistantList.tsx

@@ -30,19 +30,23 @@ export function AssistantList({ assistantIDs = [] }: AssistantListProps) {
   const setCurrentAssistant = useConnectStore((state) => {
     return state.setCurrentAssistant;
   });
+  const assistantList = useConnectStore((state) => state.assistantList);
+
   const aiAssistant = useShortcutsStore((state) => state.aiAssistant);
+
   const [assistants, setAssistants] = useState<any[]>([]);
   const [isRefreshing, setIsRefreshing] = useState(false);
   const popoverRef = useRef<HTMLDivElement>(null);
   const popoverButtonRef = useRef<HTMLButtonElement>(null);
   const searchInputRef = useRef<HTMLInputElement>(null);
   const [keyword, setKeyword] = useState("");
+
   const debounceKeyword = useDebounce(keyword, { wait: 500 });
+
   const askAiAssistantId = useSearchStore((state) => state.askAiAssistantId);
   const setAskAiAssistantId = useSearchStore((state) => {
     return state.setAskAiAssistantId;
   });
-  const assistantList = useConnectStore((state) => state.assistantList);
 
   const { fetchAssistant } = AssistantFetcher({
     debounceKeyword,

src/components/Assistant/Chat.tsx

@@ -41,6 +41,7 @@ interface ChatAIProps {
   startPage?: StartPage;
   formatUrl?: (data: any) => string;
   instanceId?: string;
+  getChatHistoryChatPage?: () => void;
 }
 
 export interface SendMessageParams {
@@ -52,6 +53,7 @@ export interface ChatAIRef {
   init: (params: SendMessageParams) => void;
   cancelChat: () => void;
   clearChat: () => void;
+  onSelectChat: (chat: Chat) => void;
 }
 
 const ChatAI = memo(
@@ -73,6 +75,7 @@ const ChatAI = memo(
         startPage,
         formatUrl,
         instanceId,
+        getChatHistoryChatPage,
       },
       ref
     ) => {
@@ -80,6 +83,7 @@ const ChatAI = memo(
         init: init,
         cancelChat: () => cancelChat(activeChat),
         clearChat: clearChat,
+        onSelectChat: onSelectChat,
       }));
 
       const curChatEnd = useChatStore((state) => state.curChatEnd);
@@ -193,7 +197,8 @@ const ChatAI = memo(
         isDeepThinkActive,
         isMCPActive,
         changeInput,
-        showChatHistory
+        showChatHistory,
+        getChatHistoryChatPage,
       );
 
       const { dealMsg } = useMessageHandler(
@@ -233,7 +238,7 @@ const ChatAI = memo(
         async (params: SendMessageParams) => {
           try {
             //console.log("init", curChatEnd, activeChat?._id);
-            if (!isCurrentLogin) {
+            if (isTauri && !isCurrentLogin) {
               addError("Please login to continue chatting");
               return;
             }
@@ -390,7 +395,7 @@ const ChatAI = memo(
               assistantIDs={assistantIDs}
             />
 
-            {isCurrentLogin ? (
+            {!isTauri || (isTauri && isCurrentLogin) ? (
               <>
                 <ChatContent
                   activeChat={activeChat}

src/components/Assistant/ChatContent.tsx

@@ -5,7 +5,6 @@ import { ChatMessage } from "@/components/ChatMessage";
 import { Greetings } from "./Greetings";
 import AttachmentList from "@/components/Assistant/AttachmentList";
 import { useChatScroll } from "@/hooks/useChatScroll";
-
 import type { Chat, IChunkData } from "@/types/chat";
 import { useConnectStore } from "@/stores/connectStore";
 // import SessionFile from "./SessionFile";
@@ -45,20 +44,23 @@ export const ChatContent = ({
   handleSendMessage,
   formatUrl,
 }: ChatContentProps) => {
-  const { currentSessionId, setCurrentSessionId } = useConnectStore();
-
   const { t } = useTranslation();
 
-  const { uploadAttachments } = useChatStore();
+  const currentSessionId = useConnectStore((state) => state.currentSessionId);
+  const setCurrentSessionId = useConnectStore(
+    (state) => state.setCurrentSessionId
+  );
+  const visibleStartPage = useConnectStore((state) => state.visibleStartPage);
+
+  const uploadAttachments = useChatStore((state) => state.uploadAttachments);
+  const curChatEnd = useChatStore((state) => state.curChatEnd);
 
   const messagesEndRef = useRef<HTMLDivElement>(null);
 
   const { scrollToBottom } = useChatScroll(messagesEndRef);
+
   const scrollRef = useRef<HTMLDivElement>(null);
   const [isAtBottom, setIsAtBottom] = useState(true);
-  const visibleStartPage = useConnectStore((state) => state.visibleStartPage);
-
-  const curChatEnd = useChatStore((state) => state.curChatEnd);
 
   useEffect(() => {
     setIsAtBottom(true);

src/components/Assistant/ChatHeader.tsx

@@ -1,9 +1,6 @@
 import { MessageSquarePlus } from "lucide-react";
-import clsx from "clsx";
 
 import HistoryIcon from "@/icons/History";
-import PinOffIcon from "@/icons/PinOff";
-import PinIcon from "@/icons/Pin";
 import WindowsFullIcon from "@/icons/WindowsFull";
 import { useAppStore } from "@/stores/appStore";
 import type { Chat } from "@/types/chat";
@@ -12,7 +9,7 @@ import { useShortcutsStore } from "@/stores/shortcutsStore";
 import { HISTORY_PANEL_ID } from "@/constants";
 import { AssistantList } from "./AssistantList";
 import { ServerList } from "./ServerList";
-import { useTogglePin } from "@/hooks/useTogglePin";
+import TogglePin from "../Common/TogglePin";
 
 interface ChatHeaderProps {
   clearChat: () => void;
@@ -36,10 +33,8 @@ export function ChatHeader({
   assistantIDs,
 }: ChatHeaderProps) {
   const { isTauri } = useAppStore();
-  const { isPinned, togglePin } = useTogglePin();
 
-  const { historicalRecords, newSession, fixedWindow, external } =
-    useShortcutsStore();
+  const { historicalRecords, newSession, external } = useShortcutsStore();
 
   return (
     <header
@@ -92,16 +87,7 @@ export function ChatHeader({
 
       {isTauri ? (
         <div className="flex items-center gap-2">
-          <button
-            onClick={togglePin}
-            className={clsx("inline-flex", {
-              "text-blue-500": isPinned,
-            })}
-          >
-            <VisibleKey shortcut={fixedWindow} onKeyPress={togglePin}>
-              {isPinned ? <PinIcon /> : <PinOffIcon />}
-            </VisibleKey>
-          </button>
+          <TogglePin className="inline-flex" />
 
           <ServerList clearChat={clearChat} />
 

src/components/Assistant/ServerList.tsx

@@ -18,7 +18,10 @@ import StatusIndicator from "@/components/Cloud/StatusIndicator";
 import { useAuthStore } from "@/stores/authStore";
 import { useSearchStore } from "@/stores/searchStore";
 import { useServers } from "@/hooks/useServers";
-import { getCurrentWindowService, setCurrentWindowService } from "@/commands";
+import {
+  getCurrentWindowService,
+  setCurrentWindowService,
+} from "@/commands/windowService";
 
 interface ServerListProps {
   clearChat: () => void;
@@ -33,10 +36,9 @@ export function ServerList({ clearChat }: ServerListProps) {
   );
   const setEndpoint = useAppStore((state) => state.setEndpoint);
   const isTauri = useAppStore((state) => state.isTauri);
+
   const currentService = useConnectStore((state) => state.currentService);
-  const cloudSelectService = useConnectStore((state) => {
-    return state.cloudSelectService;
-  });
+  const serverList = useConnectStore((state) => state.serverList);
 
   const { setMessages } = useChatStore();
 
@@ -55,7 +57,6 @@ export function ServerList({ clearChat }: ServerListProps) {
   const serverListButtonRef = useRef<HTMLButtonElement>(null);
 
   const { refreshServerList } = useServers();
-  const serverList = useConnectStore((state) => state.serverList);
 
   const switchServer = async (server: IServer) => {
     if (!server) return;
@@ -95,8 +96,10 @@ export function ServerList({ clearChat }: ServerListProps) {
       } else {
         switchServer(enabledServers[enabledServers.length - 1]);
       }
+    } else {
+      setCurrentWindowService({});
     }
-  }, [currentService?.id, cloudSelectService?.id, serverList]);
+  }, [serverList]);
 
   useEffect(() => {
     if (!askAiServerId || serverList.length === 0) return;
@@ -229,11 +232,11 @@ export function ServerList({ clearChat }: ServerListProps) {
                         : "hover:bg-gray-50 dark:hover:bg-gray-800/50"
                     }`}
                 >
-                  <div className="flex items-center gap-2 overflow-hidden min-w-0">
+                  <div className="flex items-center gap-2 min-w-0">
                     <img
                       src={server?.provider?.icon || logoImg}
                       alt={server.name}
-                      className="w-6 h-6 rounded-full bg-gray-100 dark:bg-gray-800"
+                      className="w-6 h-6 rounded-full bg-gray-100 dark:bg-gray-800 dark:drop-shadow-[0_0_6px_rgb(255,255,255)]"
                       onError={(e) => {
                         const target = e.target as HTMLImageElement;
                         target.src = logoImg;

src/components/Assistant/SessionFile.tsx

@@ -37,8 +37,6 @@ const SessionFile = (props: SessionFileProps) => {
 
   const getUploadedFiles = async () => {
     if (isTauri) {
-      console.log("sessionId", sessionId);
-
       const response: any = await platformAdapter.commands(
         "get_attachment_by_ids",
         {

src/components/Assistant/Splash.tsx

@@ -54,7 +54,7 @@ const Splash = ({ assistantIDs = [], startPage }: SplashProps) => {
 
     let response: any;
     if (isTauri) {
-      if (unrequitable()) {
+      if (await unrequitable()) {
         return setVisibleStartPage(false);
       }
 

src/components/ChatMessage/MessageActions.tsx

@@ -67,7 +67,7 @@ export const MessageActions = ({
   };
 
   const handleSpeak = async () => {
-    if (isDefaultServer()) {
+    if (await isDefaultServer()) {
       return setSynthesizeItem({ id, content });
     }
 

src/components/Cloud/Cloud.tsx

@@ -1,4 +1,6 @@
 import { useEffect, useRef, useState, useCallback } from "react";
+import { isEqual } from "lodash-es";
+import { usePrevious } from "ahooks";
 
 import { DataSourcesList } from "./DataSourcesList";
 import { Sidebar } from "./Sidebar";
@@ -7,9 +9,9 @@ import { useAppStore } from "@/stores/appStore";
 import { useConnectStore } from "@/stores/connectStore";
 import ServiceInfo from "./ServiceInfo";
 import ServiceAuth from "./ServiceAuth";
-import platformAdapter from "@/utils/platformAdapter";
 import type { Server } from "@/types/server";
 import { useServers } from "@/hooks/useServers";
+import platformAdapter from "@/utils/platformAdapter";
 
 export default function Cloud() {
   const SidebarRef = useRef<{ refreshData: () => void }>(null);
@@ -24,6 +26,7 @@ export default function Cloud() {
     serverList,
     setServerList,
   } = useConnectStore();
+  const prevServerList = usePrevious(serverList);
 
   const [refreshLoading, setRefreshLoading] = useState(false);
 
@@ -31,6 +34,8 @@ export default function Cloud() {
 
   // fetch the servers
   useEffect(() => {
+    if (isEqual(prevServerList, serverList)) return;
+
     fetchServers();
   }, [serverList]);
 
@@ -40,39 +45,45 @@ export default function Cloud() {
   }, [cloudSelectService?.id]);
 
   const fetchServers = useCallback(async () => {
-    let res = serverList;
+    let { serverList } = useConnectStore.getState();
+
     if (errors.length > 0) {
-      res = res.map((item: Server) => {
+      serverList = serverList.map((item: Server) => {
         if (item.id === cloudSelectService?.id) {
-          item.health = {
-            services: item.health?.services || {},
-            status: item.health?.status || "red",
+          return {
+            ...item,
+            health: {
+              services: item.health?.services || {},
+              status: item.health?.status || "red",
+            },
           };
         }
         return item;
       });
     }
-    setServerList(res);
 
-    if (res.length > 0) {
-      const matched = res.find((server: any) => {
+    setServerList(serverList);
+
+    if (serverList.length > 0) {
+      const matched = serverList.find((server: any) => {
         return server.id === cloudSelectService?.id;
       });
 
       if (matched) {
         setCloudSelectService(matched);
       } else {
-        setCloudSelectService(res[res.length - 1]);
+        setCloudSelectService(serverList[serverList.length - 1]);
       }
     }
-  }, [serverList, errors, cloudSelectService]);
+  }, [errors, cloudSelectService]);
 
   const refreshClick = useCallback(
-    async (id: string) => {
+    async (id: string, callback?: () => void) => {
       setRefreshLoading(true);
       await platformAdapter.commands("refresh_coco_server_info", id);
       await refreshServerList();
       setRefreshLoading(false);
+      callback && callback();
     },
     [refreshServerList]
   );

src/components/Cloud/DataSourceItem.tsx

@@ -59,7 +59,7 @@ export function DataSourceItem({ name, icon, connector }: DataSourceItemProps) {
           {icon?.startsWith("font_") ? (
             <FontIcon name={icon} className="size-6" />
           ) : (
-            <img src={getTypeIcon()} alt={name} className="size-6" />
+            <img src={getTypeIcon()} alt={name} className="size-6 dark:drop-shadow-[0_0_6px_rgb(255,255,255)]" />
           )}
 
           <span className="font-medium text-gray-900 dark:text-white">

src/components/Cloud/ServiceAuth.tsx

@@ -2,11 +2,6 @@ import { FC, memo, useCallback, useEffect, useState } from "react";
 import { Copy } from "lucide-react";
 import { useTranslation } from "react-i18next";
 import { v4 as uuidv4 } from "uuid";
-import {
-  getCurrent as getCurrentDeepLinkUrls,
-  onOpenUrl,
-} from "@tauri-apps/plugin-deep-link";
-import { getCurrentWindow } from "@tauri-apps/api/window";
 
 import { UserProfile } from "./UserProfile";
 import { OpenURLWithBrowser } from "@/utils";
@@ -18,19 +13,21 @@ import { useServers } from "@/hooks/useServers";
 
 interface ServiceAuthProps {
   setRefreshLoading: (loading: boolean) => void;
-  refreshClick: (id: string) => void;
+  refreshClick: (id: string, callback?: () => void) => void;
 }
 
 const ServiceAuth = memo(
   ({ setRefreshLoading, refreshClick }: ServiceAuthProps) => {
     const { t } = useTranslation();
 
+    const language = useAppStore((state) => state.language);
+    const addError = useAppStore((state) => state.addError);
     const ssoRequestID = useAppStore((state) => state.ssoRequestID);
     const setSSORequestID = useAppStore((state) => state.setSSORequestID);
 
-    const addError = useAppStore((state) => state.addError);
-
-    const cloudSelectService = useConnectStore((state) => state.cloudSelectService);
+    const cloudSelectService = useConnectStore(
+      (state) => state.cloudSelectService
+    );
 
     const { logoutServer } = useServers();
 
@@ -45,7 +42,7 @@ const ServiceAuth = memo(
       // Generate the login URL with the current appUid
       const url = `${cloudSelectService?.auth_provider?.sso?.url}/?provider=${cloudSelectService?.id}&product=coco&request_id=${requestID}`;
 
-      console.log("Open SSO link, requestID:", ssoRequestID, url);
+      console.log("Open SSO link, requestID:", url);
 
       // Open the URL in a browser
       OpenURLWithBrowser(url);
@@ -64,100 +61,25 @@ const ServiceAuth = memo(
       [logoutServer]
     );
 
-    const handleOAuthCallback = useCallback(
-      async (code: string | null, serverId: string | null) => {
-        if (!code || !serverId) {
-          addError("No authorization code received");
-          return;
-        }
-
-        try {
-          console.log("Handling OAuth callback:", { code, serverId });
-          await platformAdapter.commands("handle_sso_callback", {
-            serverId: serverId, // Make sure 'server_id' is the correct argument
-            requestId: ssoRequestID, // Make sure 'request_id' is the correct argument
-            code: code,
-          });
-
-          if (serverId != null) {
-            refreshClick(serverId);
-          }
-
-          getCurrentWindow().setFocus();
-        } catch (e) {
-          console.error("Sign in failed:", e);
-        } finally {
-          setLoading(false);
-        }
-      },
-      [ssoRequestID]
-    );
-
-    const handleUrl = (url: string) => {
-      try {
-        const urlObject = new URL(url.trim());
-        console.log("handle urlObject:", urlObject);
-
-        // pass request_id and check with local, if the request_id are same, then continue
-        const reqId = urlObject.searchParams.get("request_id");
-        const code = urlObject.searchParams.get("code");
-
-        if (reqId != ssoRequestID) {
-          console.log("Request ID not matched, skip");
-          addError("Request ID not matched, skip");
-          return;
-        }
-
-        const serverId = cloudSelectService?.id;
-        handleOAuthCallback(code, serverId);
-      } catch (err) {
-        console.error("Failed to parse URL:", err);
-        addError("Invalid URL format: " + err);
-      }
-    };
-
-    // Fetch the initial deep link intent
+    // handle oauth success event
     useEffect(() => {
-      // Function to handle pasted URL
-      const handlePaste = (event: any) => {
-        const pastedText = event.clipboardData.getData("text").trim();
-        console.log("handle paste text:", pastedText);
-        if (isValidCallbackUrl(pastedText)) {
-          // Handle the URL as if it's a deep link
-          console.log("handle callback on paste:", pastedText);
-          handleUrl(pastedText);
-        }
-      };
-
-      // Function to check if the pasted URL is valid for our deep link scheme
-      const isValidCallbackUrl = (url: string) => {
-        return url && url.startsWith("coco://oauth_callback");
-      };
-
-      // Adding event listener for paste events
-      document.addEventListener("paste", handlePaste);
-
-      getCurrentDeepLinkUrls()
-        .then((urls) => {
-          console.log("URLs:", urls);
-          if (urls && urls.length > 0) {
-            if (isValidCallbackUrl(urls[0].trim())) {
-              handleUrl(urls[0]);
-            }
+      const unlistenOAuth = platformAdapter.listenEvent(
+        "oauth_success",
+        (event) => {
+          const { serverId } = event.payload;
+          if (serverId) {
+            refreshClick(serverId, () => {
+              setLoading(false);
+            });
+            addError(language === "zh" ? "登录成功" : "Login Success", "info");
           }
-        })
-        .catch((err) => {
-          console.error("Failed to get initial URLs:", err);
-          addError("Failed to get initial URLs: " + err);
-        });
-
-      const unlisten = onOpenUrl((urls) => handleUrl(urls[0]));
+        }
+      );
 
       return () => {
-        unlisten.then((fn) => fn());
-        document.removeEventListener("paste", handlePaste);
+        unlistenOAuth.then((fn) => fn());
       };
-    }, [ssoRequestID]);
+    }, [refreshClick]);
 
     useEffect(() => {
       setLoading(false);
@@ -214,7 +136,9 @@ const ServiceAuth = memo(
               <button
                 className="text-xs text-[#0096FB] dark:text-blue-400 block"
                 onClick={() =>
-                  OpenURLWithBrowser(cloudSelectService?.provider?.privacy_policy)
+                  OpenURLWithBrowser(
+                    cloudSelectService?.provider?.privacy_policy
+                  )
                 }
               >
                 {t("cloud.privacyPolicy")}
@@ -258,9 +182,9 @@ const LoadingState: FC<LoadingStateProps> = memo((props) => {
   const { t } = useTranslation();
 
   return (
-    <div className="flex items-center space-x-2">
+    <div className="flex items-center space-x-2 mb-3">
       <button
-        className="px-6 py-2 text-white bg-red-500 rounded-md hover:bg-red-600 transition-colors mb-3"
+        className="px-6 py-2 text-white bg-red-500 rounded-md hover:bg-red-600 transition-colors"
         onClick={onCancel}
       >
         {t("cloud.cancel")}

src/components/Cloud/Sidebar.tsx

@@ -53,7 +53,7 @@ export const Sidebar = forwardRef<{ refreshData: () => void }, SidebarProps>(
             <img
               src={item?.provider?.icon || cocoLogoImg}
               alt={`${item.name} logo`}
-              className="w-5 h-5 flex-shrink-0"
+              className="w-5 h-5 flex-shrink-0 dark:drop-shadow-[0_0_6px_rgb(255,255,255)]"
               onError={(e) => {
                 const target = e.target as HTMLImageElement;
                 target.src = cocoLogoImg;

src/components/Cloud/UserProfile.tsx

@@ -24,13 +24,13 @@ export function UserProfile({ server, userInfo, onLogout }: UserProfileProps) {
             <img
               src={userInfo?.avatar}
               alt=""
-              className="w-6 h-6"
+              className="w-6 h-6 dark:drop-shadow-[0_0_6px_rgb(255,255,255)]"
               onError={() => {
                 setImageLoadError(true);
               }}
             />
           ) : (
-            <User className="w-6 h-6 text-gray-500 dark:text-gray-400" />
+            <User className="w-6 h-6 text-gray-500 dark:text-gray-400 dark:drop-shadow-[0_0_6px_rgb(255,255,255)]" />
           )}
         </div>
         <div className="flex-1">

src/components/Common/Icons/CommonIcon.tsx

@@ -44,7 +44,7 @@ function CommonIcon({
   // Handle regular icon types
   const renderIconByType = (renderType: string) => {
     if (isNil(isAbsolute)) return null;
-    
+
     switch (renderType) {
       case "special_icon": {
         if (item.id === "Calculator") {

src/components/Common/Icons/FontIcon.tsx

@@ -8,7 +8,7 @@ interface FontIconProps {
 
 const FontIcon: FC<FontIconProps> = ({ name, className, style, ...rest }) => {
   return (
-    <svg className={`icon ${className || ""}`} style={style} {...rest}>
+    <svg className={`icon dark:drop-shadow-[0_0_6px_rgb(255,255,255)] ${className || ""}`} style={style} {...rest}>
       <use xlinkHref={`#${name}`} />
     </svg>
   );

src/components/Common/Icons/ThemedIcon.tsx

@@ -24,7 +24,12 @@ function ThemedIcon({ component: Component, className = "" }: ThemedIconProps) {
     return () => observer.disconnect();
   }, []);
 
-  return <Component className={className} color={color} />;
+  return (
+    <Component
+      className={`dark:drop-shadow-[0_0_6px_rgb(255,255,255)] ${className}`}
+      color={color}
+    />
+  );
 }
 
 export default ThemedIcon;

src/components/Common/Icons/UniversalIcon.tsx

@@ -49,7 +49,13 @@ function UniversalIcon({
 
   // Render image type icon
   const renderImageIcon = (src: string) => {
-    const img = <img className={className} src={src} alt="icon" />;
+    const img = (
+      <img
+        className={`dark:drop-shadow-[0_0_6px_rgb(255,255,255)] ${className}`}
+        src={src}
+        alt="icon"
+      />
+    );
     return wrapWithIconWrapper ? (
       <IconWrapper className={className} onClick={onClick}>
         {img}
@@ -63,7 +69,7 @@ function UniversalIcon({
   const renderAppIcon = (src: string) => {
     const img = (
       <img
-        className={className}
+        className={`dark:drop-shadow-[0_0_6px_rgb(255,255,255)] ${className}`}
         src={platformAdapter.convertFileSrc(src)}
         alt="icon"
       />

src/components/Common/Scrollbar.tsx

@@ -0,0 +1,47 @@
+import { useEventListener } from "ahooks";
+import clsx from "clsx";
+import {
+  forwardRef,
+  HTMLAttributes,
+  useImperativeHandle,
+  useRef,
+} from "react";
+
+const Scrollbar = forwardRef<HTMLDivElement, HTMLAttributes<HTMLDivElement>>(
+  (props, ref) => {
+    const { children, className, ...rest } = props;
+    const containerRef = useRef<HTMLDivElement>(null);
+
+    useImperativeHandle(ref, () => containerRef.current as HTMLDivElement);
+
+    useEventListener("keydown", (event) => {
+      const { key } = event;
+
+      if (key !== "PageDown" && key !== "PageUp") return;
+
+      if (!containerRef.current) return;
+
+      event.preventDefault();
+
+      const delta = key === "PageDown" ? 1 : -1;
+      const el = containerRef.current;
+
+      el.scrollBy({
+        top: delta * el.clientHeight * 0.9,
+        behavior: "smooth",
+      });
+    });
+
+    return (
+      <div
+        {...rest}
+        ref={containerRef}
+        className={clsx("custom-scrollbar", className)}
+      >
+        {children}
+      </div>
+    );
+  }
+);
+
+export default Scrollbar;

src/components/Common/TogglePin.tsx

@@ -0,0 +1,50 @@
+import { useAppStore } from "@/stores/appStore";
+import { useShortcutsStore } from "@/stores/shortcutsStore";
+import clsx from "clsx";
+import VisibleKey from "./VisibleKey";
+import { FC, HTMLAttributes } from "react";
+import PinOffIcon from "@/icons/PinOff";
+import PinIcon from "@/icons/Pin";
+
+interface TogglePinProps extends HTMLAttributes<HTMLButtonElement> {
+  setIsPinnedWeb?: (value: boolean) => void;
+}
+
+const TogglePin: FC<TogglePinProps> = (props) => {
+  const { className, setIsPinnedWeb } = props;
+  const { isPinned, setIsPinned } = useAppStore();
+  const { fixedWindow } = useShortcutsStore();
+
+  const togglePin = async () => {
+    const { isTauri, isPinned } = useAppStore.getState();
+
+    try {
+      const nextPinned = !isPinned;
+
+      if (!isTauri) {
+        setIsPinnedWeb?.(nextPinned);
+      }
+
+      setIsPinned(nextPinned);
+    } catch (err) {
+      setIsPinned(isPinned);
+
+      console.error("Failed to toggle window pin state:", err);
+    }
+  };
+
+  return (
+    <button
+      onClick={togglePin}
+      className={clsx(className, {
+        "text-blue-500": isPinned,
+      })}
+    >
+      <VisibleKey shortcut={fixedWindow} onKeyPress={togglePin}>
+        {isPinned ? <PinIcon /> : <PinOffIcon />}
+      </VisibleKey>
+    </button>
+  );
+};
+
+export default TogglePin;

src/components/Common/UI/Footer.tsx

@@ -5,13 +5,10 @@ import clsx from "clsx";
 
 import CommonIcon from "@/components/Common/Icons/CommonIcon";
 import Copyright from "@/components/Common/Copyright";
-import PinOffIcon from "@/icons/PinOff";
-import PinIcon from "@/icons/Pin";
 import logoImg from "@/assets/icon.svg";
 import { useAppStore } from "@/stores/appStore";
 import { useSearchStore } from "@/stores/searchStore";
 import { useUpdateStore } from "@/stores/updateStore";
-import VisibleKey from "../VisibleKey";
 import { useShortcutsStore } from "@/stores/shortcutsStore";
 import { formatKey } from "@/utils/keyboardUtils";
 import source_default_img from "@/assets/images/source_default.png";
@@ -19,7 +16,7 @@ import source_default_dark_img from "@/assets/images/source_default_dark.png";
 import { useThemeStore } from "@/stores/themeStore";
 import platformAdapter from "@/utils/platformAdapter";
 import FontIcon from "../Icons/FontIcon";
-import { useTogglePin } from "@/hooks/useTogglePin";
+import TogglePin from "../TogglePin";
 
 interface FooterProps {
   setIsPinnedWeb?: (value: boolean) => void;
@@ -40,13 +37,9 @@ export default function Footer({ setIsPinnedWeb }: FooterProps) {
 
   const { isTauri } = useAppStore();
 
-  const { isPinned, togglePin } = useTogglePin({
-    onPinChange: setIsPinnedWeb,
-  });
-
   const { setVisible, updateInfo, skipVersions } = useUpdateStore();
 
-  const { fixedWindow, modifierKey } = useShortcutsStore();
+  const { modifierKey } = useShortcutsStore();
 
   const openSetting = useCallback(() => {
     return platformAdapter.emitEvent("open_settings", "");
@@ -76,7 +69,10 @@ export default function Footer({ setIsPinnedWeb }: FooterProps) {
     if (visibleExtensionDetail && selectedExtension) {
       return (
         <div className="flex items-center gap-2">
-          <img src={selectedExtension.icon} className="size-5" />
+          <img
+            src={selectedExtension.icon}
+            className="size-5 dark:drop-shadow-[0_0_6px_rgb(255,255,255)]"
+          />
           <span className="text-sm">{selectedExtension.name}</span>
         </div>
       );
@@ -127,17 +123,12 @@ export default function Footer({ setIsPinnedWeb }: FooterProps) {
           <div className="flex items-center space-x-2">
             {renderLeft()}
 
-            <button
-              onClick={togglePin}
+            <TogglePin
               className={clsx({
-                "text-blue-500": isPinned,
                 "pl-2": hasUpdate,
               })}
-            >
-              <VisibleKey shortcut={fixedWindow} onKeyPress={togglePin}>
-                {isPinned ? <PinIcon /> : <PinOffIcon />}
-              </VisibleKey>
-            </button>
+              setIsPinnedWeb={setIsPinnedWeb}
+            />
           </div>
         </div>
       ) : (

src/components/Common/UI/SettingsFooter.tsx

@@ -95,4 +95,4 @@ const Footer = () => {
   );
 };
 
-export default Footer;
+export default Footer;

src/components/Common/VisibleKey.tsx

@@ -6,6 +6,9 @@ import { last } from "lodash-es";
 import { POPOVER_PANEL_SELECTOR } from "@/constants";
 import { useShortcutsStore } from "@/stores/shortcutsStore";
 import { useAppStore } from "@/stores/appStore";
+import { KeyType } from "ahooks/lib/useKeyPress";
+
+const keyTriggerMap = new Map<KeyType, number>();
 
 interface VisibleKeyProps extends HTMLAttributes<HTMLDivElement> {
   shortcut: string;
@@ -60,8 +63,16 @@ const VisibleKey: FC<VisibleKeyProps> = (props) => {
     setVisibleShortcut(isChildInPopover && modifierKeyPressed);
   }, [openPopover, modifierKeyPressed]);
 
-  useKeyPress(`${modifierKey}.${shortcut}`, (event) => {
-    if (!visibleShortcut) return;
+  useKeyPress(`${modifierKey}.${shortcut}`, (event, key) => {
+    if (!visibleShortcut || event.repeat) return;
+
+    const now = Date.now();
+    const last = keyTriggerMap.get(key) ?? 0;
+    const wait = 100;
+
+    if (now - last < wait) return;
+
+    keyTriggerMap.set(key, now);
 
     event.stopPropagation();
     event.preventDefault();
@@ -82,6 +93,10 @@ const VisibleKey: FC<VisibleKeyProps> = (props) => {
       return "↩︎";
     }
 
+    if (shortcut === "backspace") {
+      return "⌫";
+    }
+
     return shortcut;
   };
 

src/components/Search/AskAi.tsx

@@ -107,7 +107,7 @@ const AskAi: FC<AskAiProps> = (props) => {
       unlisten.current = await platformAdapter.listenEvent(
         "quick-ai-access-client-id",
         ({ payload }) => {
-          console.log("ask_ai", JSON.parse(payload));
+          // console.log("ask_ai", JSON.parse(payload));
 
           const chunkData = JSON.parse(payload);
 

src/components/Search/AssistantManager.tsx

@@ -7,6 +7,9 @@ import platformAdapter from "@/utils/platformAdapter";
 import { Get } from "@/api/axiosRequest";
 import type { Assistant } from "@/types/chat";
 import { useAppStore } from "@/stores/appStore";
+import { canNavigateBack, navigateBack } from "@/utils";
+import { useKeyPress } from "ahooks";
+import { useShortcutsStore } from "@/stores/shortcutsStore";
 
 interface AssistantManagerProps {
   isChatMode: boolean;
@@ -33,9 +36,9 @@ export function useAssistantManager({
     setVisibleExtensionStore,
     setSearchValue,
     visibleExtensionDetail,
-    setVisibleExtensionDetail,
     sourceData,
     setSourceData,
+    setVisibleExtensionDetail,
   } = useSearchStore();
 
   const { quickAiAccessAssistant, disabledExtensions } = useExtensionsStore();
@@ -47,6 +50,7 @@ export function useAssistantManager({
   }, [quickAiAccessAssistant, selectedAssistant]);
 
   const [assistantDetail, setAssistantDetail] = useState<any>({});
+  const { modifierKey } = useShortcutsStore();
 
   useEffect(() => {
     if (goAskAi) return;
@@ -76,7 +80,7 @@ export function useAssistantManager({
   }, [askAI?.id, askAI?.querySource?.id, disabledExtensions]);
 
   const handleAskAi = useCallback(() => {
-    if (!isTauri) return;
+    if (!isTauri || canNavigateBack()) return;
 
     if (disabledExtensions.includes("QuickAIAccess")) return;
 
@@ -99,39 +103,14 @@ export function useAssistantManager({
   const handleKeyDownAutoResizeTextarea = useCallback(
     (e: React.KeyboardEvent<HTMLTextAreaElement>) => {
       const { key, shiftKey, currentTarget } = e;
-      const { value } = currentTarget;
+      const { value, selectionStart, selectionEnd } = currentTarget;
 
-      if (key === "Backspace" && value === "") {
-        if (goAskAi) {
-          return setGoAskAi(false);
-        }
+      const cursorStart = selectionStart === 0 && selectionEnd === 0;
 
-        if (visibleExtensionDetail) {
-          return setVisibleExtensionDetail(false);
-        }
-
-        if (visibleExtensionStore) {
-          return setVisibleExtensionStore(false);
-        }
-
-        if (sourceData) {
-          return setSourceData(void 0);
-        }
-      }
-
-      if (key === "Tab" && !isChatMode && isTauri) {
+      if (key === "Backspace" && (value === "" || cursorStart)) {
         e.preventDefault();
 
-        if (visibleExtensionStore) return;
-
-        if (selectedSearchContent?.id === "Extension Store") {
-          changeInput("");
-          setSearchValue("");
-          return setVisibleExtensionStore(true);
-        }
-
-        assistant_get();
-        return handleAskAi();
+        return navigateBack();
       }
 
       if (key === "Enter" && !shiftKey) {
@@ -147,6 +126,17 @@ export function useAssistantManager({
 
         handleSubmit();
       }
+
+      if (key === "Home") {
+        e.preventDefault();
+        return currentTarget.setSelectionRange(0, 0);
+      }
+
+      if (key === "End") {
+        e.preventDefault();
+        const length = currentTarget.value.length;
+        return currentTarget.setSelectionRange(length, length);
+      }
     },
     [
       isChatMode,
@@ -161,6 +151,69 @@ export function useAssistantManager({
     ]
   );
 
+  const clearSearchValue = () => {
+    changeInput("");
+    setSearchValue("");
+  };
+
+  // useKeyPress("backspace", () => {
+  //   console.log("backspace");
+  //   dispatchEvent("Backspace", 8, "#search-textarea");
+  // });
+
+  useKeyPress("tab", (event) => {
+    event.preventDefault();
+
+    const { selectedSearchContent, visibleExtensionStore } =
+      useSearchStore.getState();
+
+    console.log("selectedSearchContent", selectedSearchContent);
+
+    const { id, type, category } = selectedSearchContent ?? {};
+
+    if (isChatMode || !isTauri || id === "Calculator") return;
+
+    if (visibleExtensionStore) {
+      clearSearchValue();
+      return setVisibleExtensionDetail(true);
+    }
+
+    if (id === "Extension Store") {
+      clearSearchValue();
+      return setVisibleExtensionStore(true);
+    }
+
+    if (category === "View") {
+      const onOpened = selectedSearchContent?.on_opened;
+
+      if (onOpened?.Extension?.ty?.View) {
+        const { setViewExtensionOpened } = useSearchStore.getState();
+        const viewData = onOpened.Extension.ty.View;
+        const extensionPermission = onOpened.Extension.permission;
+
+        clearSearchValue();
+        return setViewExtensionOpened([
+          viewData.page,
+          extensionPermission,
+          viewData.ui,
+          selectedSearchContent as any,
+        ]);
+      }
+    }
+
+    if (type === "AI Assistant") {
+      assistant_get();
+      return handleAskAi();
+    }
+
+    setSourceData(selectedSearchContent);
+  });
+
+  useKeyPress(`${modifierKey}.enter`, () => {
+    assistant_get();
+    return handleAskAi();
+  });
+
   return {
     askAI,
     askAIRef,

src/components/Search/ContextMenu.tsx

@@ -111,7 +111,7 @@ const ContextMenu = ({ formatUrl }: ContextMenuProps) => {
       return [];
     }
 
-    const { id, url, category, type, payload } = selectedSearchContent;
+    const { id, url, category, type, payload, source } = selectedSearchContent;
     const { query, result } = payload ?? {};
 
     if (category === "AI Overview") {
@@ -177,6 +177,18 @@ const ContextMenu = ({ formatUrl }: ContextMenuProps) => {
           copyToClipboard(`${query.value} = ${result.value}`);
         },
       },
+      {
+        name: t("search.contextMenu.openFileLocation"),
+        icon: <SquareArrowOutUpRight />,
+        keys: isMac ? ["⌘", "↩︎"] : ["Ctrl", "Enter"],
+        shortcut: isMac ? "meta.enter" : "ctrl.enter",
+        hide: source?.id !== "File Search",
+        clickEvent: async () => {
+          await platformAdapter.revealItemInDir(url);
+
+          platformAdapter.hideWindow();
+        },
+      },
     ];
   }, [selectedSearchContent, selectedExtension]);
 

src/components/Search/DocumentList.tsx

@@ -1,6 +1,9 @@
 import React, { useState, useRef, useEffect, useCallback } from "react";
 import { useInfiniteScroll } from "ahooks";
 import { useTranslation } from "react-i18next";
+import { Data } from "ahooks/lib/useInfiniteScroll/types";
+import { nanoid } from "nanoid";
+import { isNil } from "lodash-es";
 
 import { useSearchStore } from "@/stores/searchStore";
 import { SearchHeader } from "./SearchHeader";
@@ -11,9 +14,7 @@ import { Get } from "@/api/axiosRequest";
 import { useAppStore } from "@/stores/appStore";
 import { useConnectStore } from "@/stores/connectStore";
 import SearchEmpty from "../Common/SearchEmpty";
-import { Data } from "ahooks/lib/useInfiniteScroll/types";
-import { nanoid } from "nanoid";
-import { isNil } from "lodash-es";
+import Scrollbar from "@/components/Common/Scrollbar";
 
 interface DocumentListProps {
   onSelectDocument: (id: string) => void;
@@ -297,8 +298,8 @@ export const DocumentList: React.FC<DocumentListProps> = ({
         />
       </div>
 
-      <div
-        className="flex-1 overflow-auto custom-scrollbar pr-0.5"
+      <Scrollbar
+        className="flex-1 overflow-auto pr-0.5"
         ref={containerRef}
       >
         {data?.list && data.list.length > 0 && (
@@ -334,7 +335,7 @@ export const DocumentList: React.FC<DocumentListProps> = ({
             <SearchEmpty />
           </div>
         )}
-      </div>
+      </Scrollbar>
     </div>
   );
 };

src/components/Search/DropdownList.tsx

@@ -16,6 +16,7 @@ import { useKeyboardNavigation } from "@/hooks/useKeyboardNavigation";
 import { SearchSource } from "./SearchSource";
 import DropdownListItem from "./DropdownListItem";
 import platformAdapter from "@/utils/platformAdapter";
+import Scrollbar from "@/components/Common/Scrollbar";
 
 type ISearchData = Record<string, QueryHits[]>;
 
@@ -145,13 +146,14 @@ function DropdownList({
     handleItemAction,
     isChatMode,
     formatUrl,
+    searchData,
   });
 
   return (
-    <div
+    <Scrollbar
       ref={containerRef}
       data-tauri-drag-region
-      className="h-full w-full p-2 flex flex-col overflow-y-auto custom-scrollbar focus:outline-none"
+      className="h-full w-full p-2 flex flex-col overflow-y-auto focus:outline-none"
       tabIndex={0}
       role="listbox"
       aria-label={t("search.header.results")}
@@ -188,7 +190,7 @@ function DropdownList({
           })}
         </div>
       ))}
-    </div>
+    </Scrollbar>
   );
 }