Add support for sending using a QR code

closes #196

ShareExtension/Base.lproj/ShareViewController.xib

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="22505" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="23504" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
     <dependencies>
         <deployment identifier="macosx"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="22505"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="23504"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <objects>
@@ -22,6 +22,10 @@
                 <outlet property="progressProgressBar" destination="J5x-hu-Kn5" id="vYH-DN-03b"/>
                 <outlet property="progressState" destination="y8I-D3-scQ" id="Tj3-xa-8VG"/>
                 <outlet property="progressView" destination="Q9K-dc-THx" id="LlE-4d-mI5"/>
+                <outlet property="qrCodeButton" destination="ZsR-MN-QVA" id="KaY-NO-F5z"/>
+                <outlet property="qrCodeSheetView" destination="cIc-n7-hIV" id="Ol8-aW-fH0"/>
+                <outlet property="qrCodeView" destination="9Hk-Pa-eYI" id="Weo-3l-5pN"/>
+                <outlet property="qrCodeWrapView" destination="dq7-IV-6Ef" id="V35-5n-nyq"/>
                 <outlet property="view" destination="1" id="2"/>
             </connections>
         </customObject>
@@ -94,12 +98,28 @@ Gw
                 <customView translatesAutoresizingMaskIntoConstraints="NO" id="ACO-U2-AZj">
                     <rect key="frame" x="0.0" y="40" width="404" height="146"/>
                 </customView>
+                <button verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="ZsR-MN-QVA">
+                    <rect key="frame" x="3" y="3" width="125" height="32"/>
+                    <buttonCell key="cell" type="push" title="Use QR code..." bezelStyle="rounded" alignment="center" borderStyle="border" imageScaling="proportionallyDown" inset="2" id="Ll5-lP-3bU">
+                        <behavior key="behavior" pushIn="YES" lightByBackground="YES" lightByGray="YES"/>
+                        <font key="font" metaFont="system"/>
+                    </buttonCell>
+                    <constraints>
+                        <constraint firstAttribute="width" relation="greaterThanOrEqual" constant="100" id="7o5-tK-dlg"/>
+                    </constraints>
+                    <connections>
+                        <action selector="useQrCode:" target="-2" id="BS0-WG-B7q"/>
+                    </connections>
+                </button>
             </subviews>
             <constraints>
+                <constraint firstAttribute="bottom" secondItem="ZsR-MN-QVA" secondAttribute="bottom" constant="10" id="76Q-6H-r3I"/>
                 <constraint firstItem="OEz-QK-nem" firstAttribute="top" secondItem="1xF-vr-5sH" secondAttribute="bottom" constant="10" id="852-oh-vM0"/>
+                <constraint firstItem="ZsR-MN-QVA" firstAttribute="leading" secondItem="1" secondAttribute="leading" constant="10" id="CHP-wF-HhN"/>
                 <constraint firstItem="OEz-QK-nem" firstAttribute="leading" secondItem="afM-Om-nLQ" secondAttribute="trailing" constant="5" id="CIj-Dk-Md0"/>
                 <constraint firstAttribute="trailing" secondItem="ACO-U2-AZj" secondAttribute="trailing" id="HIg-sX-IK0"/>
                 <constraint firstItem="ACO-U2-AZj" firstAttribute="leading" secondItem="1" secondAttribute="leading" id="IGL-2g-wpe"/>
+                <constraint firstItem="ZsR-MN-QVA" firstAttribute="top" secondItem="ACO-U2-AZj" secondAttribute="bottom" constant="10" id="K9U-z1-gie"/>
                 <constraint firstItem="afM-Om-nLQ" firstAttribute="leading" secondItem="1" secondAttribute="leading" constant="10" id="LK2-cg-qcY"/>
                 <constraint firstItem="NVE-vN-dkz" firstAttribute="top" secondItem="ACO-U2-AZj" secondAttribute="bottom" constant="10" id="RSD-PX-W0H"/>
                 <constraint firstAttribute="bottom" secondItem="NVE-vN-dkz" secondAttribute="bottom" constant="10" id="USG-Gg-of3"/>
@@ -256,6 +276,82 @@ Gw
             </scroller>
             <point key="canvasLocation" x="-397.5" y="30"/>
         </scrollView>
+        <customView id="cIc-n7-hIV">
+            <rect key="frame" x="0.0" y="0.0" width="380" height="400"/>
+            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
+            <subviews>
+                <textField focusRingType="none" horizontalHuggingPriority="251" verticalHuggingPriority="750" horizontalCompressionResistancePriority="250" verticalCompressionResistancePriority="250" translatesAutoresizingMaskIntoConstraints="NO" id="oJM-qC-yyW">
+                    <rect key="frame" x="8" y="358" width="364" height="32"/>
+                    <textFieldCell key="cell" alignment="center" title="Scan this QR code with an Android device. The transfer will begin automatically." id="d3J-ot-h5d">
+                        <font key="font" usesAppearanceFont="YES"/>
+                        <color key="textColor" name="labelColor" catalog="System" colorSpace="catalog"/>
+                        <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
+                    </textFieldCell>
+                </textField>
+                <button verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="pLr-Yq-OMn">
+                    <rect key="frame" x="301" y="3" width="76" height="32"/>
+                    <buttonCell key="cell" type="push" title="Cancel" bezelStyle="rounded" alignment="center" borderStyle="border" imageScaling="proportionallyDown" inset="2" id="9EW-Db-fGL">
+                        <behavior key="behavior" pushIn="YES" lightByBackground="YES" lightByGray="YES"/>
+                        <font key="font" metaFont="system"/>
+                        <string key="keyEquivalent" base64-UTF8="YES">
+Gw
+</string>
+                        <connections>
+                            <action selector="dismissQrCodeSheet:" target="-2" id="OX6-j3-Dag"/>
+                        </connections>
+                    </buttonCell>
+                    <constraints>
+                        <constraint firstAttribute="width" relation="greaterThanOrEqual" constant="60" id="eRJ-dH-AQv"/>
+                    </constraints>
+                </button>
+                <textField focusRingType="none" horizontalHuggingPriority="251" verticalHuggingPriority="750" horizontalCompressionResistancePriority="250" verticalCompressionResistancePriority="250" translatesAutoresizingMaskIntoConstraints="NO" id="mP8-S4-SUv">
+                    <rect key="frame" x="8" y="40" width="364" height="42"/>
+                    <textFieldCell key="cell" alignment="center" id="uuF-4K-rMR">
+                        <font key="font" metaFont="smallSystem"/>
+                        <string key="title">If this doesn't work, make sure that the device and your Mac are on the same network, and that the router isn't blocking LAN communication.</string>
+                        <color key="textColor" name="secondaryLabelColor" catalog="System" colorSpace="catalog"/>
+                        <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
+                    </textFieldCell>
+                </textField>
+                <customView translatesAutoresizingMaskIntoConstraints="NO" id="dq7-IV-6Ef">
+                    <rect key="frame" x="80" y="113" width="220" height="220"/>
+                    <subviews>
+                        <customView translatesAutoresizingMaskIntoConstraints="NO" id="lnf-Ci-bVP" customClass="QrCodeBackgroundView" customModule="ShareExtension" customModuleProvider="target">
+                            <rect key="frame" x="0.0" y="0.0" width="220" height="220"/>
+                        </customView>
+                        <imageView horizontalHuggingPriority="251" verticalHuggingPriority="251" horizontalCompressionResistancePriority="250" verticalCompressionResistancePriority="250" translatesAutoresizingMaskIntoConstraints="NO" id="9Hk-Pa-eYI">
+                            <rect key="frame" x="0.0" y="0.0" width="220" height="220"/>
+                            <imageCell key="cell" refusesFirstResponder="YES" alignment="left" imageScaling="proportionallyDown" id="J6N-uf-WsV"/>
+                        </imageView>
+                    </subviews>
+                    <constraints>
+                        <constraint firstItem="lnf-Ci-bVP" firstAttribute="leading" secondItem="dq7-IV-6Ef" secondAttribute="leading" id="16L-0N-tMO"/>
+                        <constraint firstItem="9Hk-Pa-eYI" firstAttribute="top" secondItem="dq7-IV-6Ef" secondAttribute="top" id="22t-Se-FtM"/>
+                        <constraint firstAttribute="bottom" secondItem="lnf-Ci-bVP" secondAttribute="bottom" id="9XU-id-5Lj"/>
+                        <constraint firstItem="9Hk-Pa-eYI" firstAttribute="leading" secondItem="dq7-IV-6Ef" secondAttribute="leading" id="KWg-eg-4sO"/>
+                        <constraint firstAttribute="width" constant="220" id="drn-Gr-Tx6"/>
+                        <constraint firstAttribute="trailing" secondItem="9Hk-Pa-eYI" secondAttribute="trailing" id="fif-Sg-QCc"/>
+                        <constraint firstAttribute="bottom" secondItem="9Hk-Pa-eYI" secondAttribute="bottom" id="iVK-yf-1Ev"/>
+                        <constraint firstAttribute="height" constant="220" id="l69-dh-xwJ"/>
+                        <constraint firstAttribute="trailing" secondItem="lnf-Ci-bVP" secondAttribute="trailing" id="pva-qe-Ibk"/>
+                        <constraint firstItem="lnf-Ci-bVP" firstAttribute="top" secondItem="dq7-IV-6Ef" secondAttribute="top" id="yOu-Bz-qVZ"/>
+                    </constraints>
+                </customView>
+            </subviews>
+            <constraints>
+                <constraint firstItem="oJM-qC-yyW" firstAttribute="leading" secondItem="cIc-n7-hIV" secondAttribute="leading" constant="10" id="HaS-Sl-afe"/>
+                <constraint firstItem="dq7-IV-6Ef" firstAttribute="centerX" secondItem="cIc-n7-hIV" secondAttribute="centerX" id="Iip-bT-bl3"/>
+                <constraint firstItem="dq7-IV-6Ef" firstAttribute="top" secondItem="oJM-qC-yyW" secondAttribute="bottom" constant="25" id="YMN-xe-7cI"/>
+                <constraint firstAttribute="trailing" secondItem="pLr-Yq-OMn" secondAttribute="trailing" constant="10" id="cAr-rb-sXX"/>
+                <constraint firstItem="oJM-qC-yyW" firstAttribute="top" secondItem="cIc-n7-hIV" secondAttribute="top" constant="10" id="gts-uR-3Ej"/>
+                <constraint firstAttribute="trailing" secondItem="oJM-qC-yyW" secondAttribute="trailing" constant="10" id="hwy-vE-lHk"/>
+                <constraint firstAttribute="bottom" secondItem="pLr-Yq-OMn" secondAttribute="bottom" constant="10" id="jpn-he-6Ju"/>
+                <constraint firstItem="pLr-Yq-OMn" firstAttribute="top" secondItem="mP8-S4-SUv" secondAttribute="bottom" constant="10" id="sbP-BO-Te7"/>
+                <constraint firstItem="mP8-S4-SUv" firstAttribute="leading" secondItem="cIc-n7-hIV" secondAttribute="leading" constant="10" id="vUz-rq-dbN"/>
+                <constraint firstAttribute="trailing" secondItem="mP8-S4-SUv" secondAttribute="trailing" constant="10" id="way-Az-buy"/>
+            </constraints>
+            <point key="canvasLocation" x="-13" y="400"/>
+        </customView>
     </objects>
     <resources>
         <image name="NSCaution" width="32" height="32"/>

ShareExtension/QrCodeBackgroundView.swift

@@ -0,0 +1,46 @@
+//
+//  QrCodeBackgroundView.swift
+//  ShareExtension
+//
+//  Created by Grishka on 07.08.2025.
+//
+
+import Foundation
+import Metal
+import MetalKit
+
+class QrCodeBackgroundView:MTKView{
+	private var commandQueue:MTLCommandQueue?
+	private var commandBuffer:MTLCommandBuffer?
+	
+	override func awakeFromNib() {
+		super.awakeFromNib()
+		isPaused=true
+		enableSetNeedsDisplay=false
+		device=MTLCreateSystemDefaultDevice()
+		let brightness=1.5
+		clearColor=MTLClearColor(red: brightness, green: brightness, blue: brightness, alpha: 1)
+		
+		let mtlLayer:CAMetalLayer=(layer as? CAMetalLayer)!
+		mtlLayer.wantsExtendedDynamicRangeContent=true
+		mtlLayer.cornerRadius=20
+		mtlLayer.masksToBounds=true
+		colorspace=CGColorSpace(name: CGColorSpace.extendedSRGB)
+		colorPixelFormat = .rgba16Float
+		
+		commandQueue=device!.makeCommandQueue()
+		commandBuffer=commandQueue!.makeCommandBuffer()
+		draw()
+	}
+	
+	override func draw(_ dirtyRect: NSRect) {
+		guard let commandBuffer=commandBuffer else {return}
+		if let descriptor=currentRenderPassDescriptor, let encoder=commandBuffer.makeRenderCommandEncoder(descriptor: descriptor){
+			encoder.endEncoding()
+			if let currentDrawable=currentDrawable{
+				commandBuffer.present(currentDrawable)
+			}
+		}
+		commandBuffer.commit()
+	}
+}

ShareExtension/ShareViewController.swift

@@ -8,6 +8,7 @@
 import Foundation
 import Cocoa
 import NearbyShare
+import QRCode
 
 class ShareViewController: NSViewController, ShareExtensionDelegate{
 	
@@ -15,6 +16,7 @@ class ShareViewController: NSViewController, ShareExtensionDelegate{
 	private var foundDevices:[RemoteDeviceInfo]=[]
 	private var chosenDevice:RemoteDeviceInfo?
 	private var lastError:Error?
+	private var sheetWindow:NSWindow?
 	
 	@IBOutlet var filesIcon:NSImageView?
 	@IBOutlet var filesLabel:NSTextField?
@@ -30,6 +32,11 @@ class ShareViewController: NSViewController, ShareExtensionDelegate{
 	@IBOutlet var progressState:NSTextField?
 	@IBOutlet var progressDeviceIconWrap:NSView?
 	@IBOutlet var progressDeviceSecondaryIcon:NSImageView?
+	@IBOutlet var qrCodeButton:NSButton?
+	
+	@IBOutlet var qrCodeSheetView:NSView?
+	@IBOutlet var qrCodeView:NSImageView?
+	@IBOutlet var qrCodeWrapView:NSView?
 	
 	override var nibName: NSNib.Name? {
 		return NSNib.Name("ShareViewController")
@@ -38,7 +45,6 @@ class ShareViewController: NSViewController, ShareExtensionDelegate{
 	override func loadView() {
 		super.loadView()
 	
-		// Insert code here to customize the view
 		let item = self.extensionContext!.inputItems[0] as! NSExtensionItem
 			if let attachments = item.attachments {
 			for attachment in attachments as NSArray{
@@ -99,6 +105,13 @@ class ShareViewController: NSViewController, ShareExtensionDelegate{
 		
 		progressDeviceIconWrap!.wantsLayer=true
 		progressDeviceIconWrap!.layer!.masksToBounds=false
+		
+		qrCodeWrapView!.wantsLayer=true
+		qrCodeWrapView!.layer!.masksToBounds=false
+		qrCodeWrapView!.layer!.shadowColor = .black
+		qrCodeWrapView!.layer!.shadowOpacity=0.3
+		qrCodeWrapView!.layer!.shadowRadius=12
+		qrCodeWrapView!.layer!.shadowOffset=CGSizeMake(0, -5)
 	}
 	
 	override func viewDidLoad(){
@@ -122,6 +135,39 @@ class ShareViewController: NSViewController, ShareExtensionDelegate{
 		self.extensionContext!.cancelRequest(withError: cancelError)
 	}
 	
+	@IBAction func useQrCode(_ sender: AnyObject?) {
+		let window=contentWrap!.window!
+		let sheetWindow=NSWindow()
+		sheetWindow.contentView=qrCodeSheetView!
+		let size=NSSize(width: 380, height: 400)
+		sheetWindow.contentMaxSize=size
+		sheetWindow.contentMinSize=size
+		sheetWindow.setContentSize(size)
+		
+		let qrKey=NearbyConnectionManager.shared.generateQrCodeKey()
+		let qrCodeImage=try! QRCode.build
+			.text("https://quickshare.google/qrcode#key=\(qrKey)")
+			.backgroundColor(CGColor(srgbRed: 1, green: 1, blue: 1, alpha: 0))
+			.quietZonePixelCount(3)
+			.onPixels.shape(.circle())
+			.eye.shape(.roundedPointing())
+			.errorCorrection(.low)
+			.generate.image(dimension: Int(qrCodeView!.frame.width)*2)
+		qrCodeView!.image=NSImage(cgImage: qrCodeImage, size: qrCodeImage.size)
+		
+		self.sheetWindow=sheetWindow
+		window.beginSheet(sheetWindow) { response in
+			self.sheetWindow=nil
+			NearbyConnectionManager.shared.clearQrCodeKey()
+		}
+	}
+	
+	@IBAction func dismissQrCodeSheet(_ sender: AnyObject?){
+		contentWrap!.window!.endSheet(sheetWindow!)
+		sheetWindow=nil
+		NearbyConnectionManager.shared.clearQrCodeKey()
+	}
+	
 	private func urlsReady(){
 		for url in urls{
 			if url.isFileURL{
@@ -172,6 +218,11 @@ class ShareViewController: NSViewController, ShareExtensionDelegate{
 		}
 	}
 	
+	func startTransferWithQrCode(device: RemoteDeviceInfo){
+		dismissQrCodeSheet(nil)
+		selectDevice(device: device)
+	}
+	
 	func connectionWasEstablished(pinCode: String) {
 		progressState?.stringValue=String(format:NSLocalizedString("PinCode", value: "PIN: %@", comment: ""), arguments: [pinCode])
 		progressProgressBar?.isIndeterminate=false
@@ -224,6 +275,7 @@ class ShareViewController: NSViewController, ShareExtensionDelegate{
 		NearbyConnectionManager.shared.stopDeviceDiscovery()
 		listViewWrapper?.animator().isHidden=true
 		progressView?.animator().isHidden=false
+		qrCodeButton?.animator().isHidden=true
 		progressDeviceName?.stringValue=device.name
 		progressDeviceIcon?.image=imageForDeviceType(type: device.type)
 		progressProgressBar?.startAnimation(nil)

ShareExtension/ru.lproj/ShareViewController.strings

@@ -5,8 +5,20 @@
 /* Class = "NSButtonCell"; title = "Cancel"; ObjectID = "6Up-t3-mwm"; */
 "6Up-t3-mwm.title" = "Отменить";
 
+/* Class = "NSButtonCell"; title = "Cancel"; ObjectID = "9EW-Db-fGL"; */
+"9EW-Db-fGL.title" = "Отменить";
+
+/* Class = "NSButtonCell"; title = "Use QR code..."; ObjectID = "Ll5-lP-3bU"; */
+"Ll5-lP-3bU.title" = "Использовать QR-код...";
+
 /* Class = "NSTextFieldCell"; title = "Looking for devices..."; ObjectID = "NaJ-Wx-Pim"; */
 "NaJ-Wx-Pim.title" = "Ищу устройства...";
 
+/* Class = "NSTextFieldCell"; title = "Scan this QR code with an Android device. The transfer will begin automatically."; ObjectID = "d3J-ot-h5d"; */
+"d3J-ot-h5d.title" = "Отсканируйте этот QR-код на Android-устройстве. Передача начнётся автоматически.";
+
+/* Class = "NSTextFieldCell"; title = "If this doesn't work, make sure that the device and your Mac are on the same network, and that the router isn't blocking LAN communication."; ObjectID = "uuF-4K-rMR"; */
+"uuF-4K-rMR.title" = "Если соединиться не удаётся, убедитесь, что устройство и Mac находятся в одной сети, и что роутер не блокирует передачу данных по локальной сети.";
+
 /* Class = "NSTextFieldCell"; title = "If you don't see your device, open \"Files by Google\" app and tap \"Receive\" on the Nearby Share tab."; ObjectID = "vla-gF-eJo"; */
 "vla-gF-eJo.title" = "Если Вы не видите своё устройство, откройте приложение \"Google Files\" и нажмите \"Получить\" на вкладке Обмен.";