## Summary of the Pull Request
This PR introduces a rough hotfix for several indexer-related issues.
- Premise: patch what we can in-place and fix the core later (reworking
`SeachEngine` and `SearchQuery` is slightly trickier). This patch also
removes some dead code for future refactor.
- Adds search cancellation to the File Search page and the indexer
fallback.
- Prevents older searches from overwriting newer model state and reduces
wasted work.
- Stops reusing the search engine; creates a new instance per search to
avoid synchronization issues.
- That `SeachEngine` and `SearchQuery` are not multi-threading friendly.
- Removes search priming to simplify the code and improve performance.
- Since `SearchQuery` cancels and re-primes on every search, priming
provides little benefit and can hide extra work (for example,
cancellation triggering re-priming).
- Fixes the indexer fallback subject line not updating when there is
more than one match.
- It previously kept the old value, which was confusing.
- ~Shows the number of matched files in the fallback result.~
- Fetching total number of rows was reverted, performance was not stable
:(
- Optimizes the indexer fallback by reducing the number of items
processed but not used.
- Only fetches the item(s) needed for the fallback itself—no extra work
on the hot path.
- Stops reusing the fallback result when navigating to the File Search
page to show more results. This requires querying again, but it
simplifies the flow and keeps components isolated.
- Fixes the English mnemonic keyword `kind` being hardcoded in the
search page filter. Windows Search uses localized mnemonic keyword
names, so this PR replaces it with canonical keyword `System.Kind` that
is universaly recognized.
- Adds extra diagnostics to `SearchQuery` and makes logging more
precise.
- DataPackage for the IndexerListItem now defers including of storage
items - boost performance and we avoid touching the item until its
needed.
- IndexerPage with a prepopulated query will delay loading until the
items are actually enumerated (to avoid populating from fallback hot
path) and it no longer takes external SearchEngine. It just recreates
everything.
<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist
- [x] Related to: #44728
- [x] Closes: #44731
- [x] Closes: #44732
- [x] Closes: #44743
<!-- - [ ] Closes: #yyy (add separate lines for additional resolved
issues) -->
- [ ] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [ ] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **Documentation updated:** If checked, please file a pull request
on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx
<!-- Provide a more detailed description of the PR, other things fixed,
or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments
<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request
Add a peek command, so we could quickly view the files found by indexer
I’m aware that wiring the Peek command directly into the indexer
extension is fairly PowerToys-specific.
I’m open to suggestions if we think this should instead be handled via a
more general extension / plugin mechanism; if a broader framework is
planned, I’m happy to wait and revisit this once that structure is in
place.
<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist
- [ ] Closes: #43517
<!-- - [ ] Closes: #yyy (add separate lines for additional resolved
issues) -->
- [ ] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [ ] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **Documentation updated:** If checked, please file a pull request
on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx
<!-- Provide a more detailed description of the PR, other things fixed,
or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments
<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
<img width="279" height="315" alt="image"
src="https://github.com/user-attachments/assets/c095ac55-30a2-49e6-a972-b51b35939c53"
/>
<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request
Feedback from the design team:
- Reduce any redundant or long text strings for better readability and
localization
- `Verb + noun` for most extensions
- Sentence casing according to the Windows Writing Guidelines
<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist
- [ ] Closes: #xxx
- [ ] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [ ] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **Documentation updated:** If checked, please file a pull request
on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx
<!-- Provide a more detailed description of the PR, other things fixed,
or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments
<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
---------
Co-authored-by: Michael Jolley <mike@baldbeardedbuilder.com>
Co-authored-by: Jiří Polášek <me@jiripolasek.com>
## Summary of the Pull Request
This PR improves the user experience when no indexed files match the
query in the File Search extension.
- Show a hint on the empty results page when no indexed files are found.
- Provide fallback actions:
- Search entire PC – opens new File Explorer window with the query
searched in This PC.
- Open Windows Search settings – navigates to Windows Search settings to
review indexed locations.
<img width="1719" height="1072" alt="image"
src="https://github.com/user-attachments/assets/51bd7b4a-563f-4339-b179-8125c057b0af"
/>
<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist
- [x] Related to: #38509
- [ ] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [ ] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **Documentation updated:** If checked, please file a pull request
on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx
<!-- Provide a more detailed description of the PR, other things fixed,
or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments
<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
**WARNING:** This PR will probably blow up all in-flight PRs
at some point in the early days of CmdPal, two of us created seperate
`Exts` and `exts` dirs. Depending on what the casing was on the branch
that you checked one of those out from, it'd get stuck like that on your
PC forever.
Windows didn't care, so we never noticed.
But GitHub does care, and now browsing the source on GitHub is basically
impossible.
Closes#38081
