<!-- 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
This PR aims to fix some positioning issues of the form used as preview
handler.
It fixes the following issues:
1. The floating window, detached from Explorer that sometimes appears:
#33491#27475#24985
2. The **CoreWebView2 members cannot be accessed after the WebView2
control is disposed** crash: #27276
3. `PowerToys.*.PreviewHandler.exe` process leak
### Repro steps for issue 1
- Navigate through files in a folder invoking their preview handler
- Minimize/Restore Explorer quickly (spam WIN+D usually works)
- 2 weird issues happen:
- Some `PowerToys.*.PreviewHandler.exe` processes are leaked
- Some `PowerToys.*.PreviewHandler.exe` are started with a `NULL` `HWND`
This happens because
[IPreviewHandler::DoPreview](https://learn.microsoft.com/windows/win32/api/shobjidl_core/nf-shobjidl_core-ipreviewhandler-dopreview)
is called multiple times and sometimes before calling
[IPreviewHandler::SetWindow](https://learn.microsoft.com/windows/win32/api/shobjidl_core/nf-shobjidl_core-ipreviewhandler-setwindow).
When the managed previewer try to set the parent of the form to the
`NULL` `HWND`, the desktop window is used instead, resulting in the
floating preview window being displayed.
Reference:
https://learn.microsoft.com/windows/win32/api/winuser/nf-winuser-setparent#parameters5d77874382/src/modules/previewpane/common/controls/FormHandlerControl.cs (L136)
### Repro steps for issue 2
- Preview a file
- Restart `explorer.exe` process
- Make sure `PowerToys.*.PreviewHandler.exe` is leaked and still running
- Preview the same file again
- Preview is displayed (another process is launched)
- Minimize Explorer
What happens here is that the form of the old process have an invalid
`HWND` as parent but receive the `SetRect` for some reason.
<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist
- [x] **Closes:** #33491#27475#24985#27276
- [ ] **Communication:** I've discussed this with core contributors
already. If 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
- Don't start preview pane process when `HWND` is `NULL`
- Terminate the preview pane process when setting parent fails
- Prevent leaking processes closing them when a new preview is requested
- Fixed an issue where PDF and SVG previews weren't updated after
restoring Explorer
- Added some error handling in the `UpdateWindowBounds` method of the
managed preview
- Terminate the preview pane when the `SetRect` event is received but
the parent `HWND` has become invalid
<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed
- Manually tested all preview panes also using multiple Explorer windows
- Validated that when Explorer is minimized/restored the preview is
updated
- Tested the preview pane resize
- Validated that no window, no taskbar icon and no errors appear on both
repro steps
* [PreviewPane] Monaco Previewer: await initial position, size update + use recieved coordinates
* Fixing size and position issue for all file explorer previewers
* [Deps]Update CppWinRT to 2.0.240111.5
* Apply fix for robmikh.common incompatibility with cppwinrt
* Add CppWinRT to projects that were missing it
* Fix spellcheck
* Update to WASDK 1.4
* Remove redundant title bar styles.
* Update notice
* Update C++ projects as well
* Upgrade CppWinRT too
* Add exception to WASDK file version set to 1.0.0.0
---------
Co-authored-by: Jaime Bernardo <jaime@janeasystems.com>
* Flatten everything and succeed build
* Figure out Settings assets
* Remove UseCommonOutputDirectory tag
* Proper settings app path
* [VCM] Fix assets location
* Fix some runtime paths
* [RegistryPreview]Use MRTCore specific pri file
* [Hosts]Use MRTCore specific pri file
* [Settings]Use MRTCore specific pri file
* [Peek]Use MRTCore specific pri file
* [FileLocksmith]Use MRTCore specific pri file
* [ScreenRuler]Use MRTCore specific pri file
* [PowerRename]Use MRTCore specific pri file
* [Peek]Move assets to own folder
* [FileLocksmith] Use own Assets path
* [Hosts]Use own assets folder
* [PowerRename]Use own assets dir
* [MeasureTool] Use its own assets folder
* [ImageResizer]Use its own assets path
* Fix spellcheck
* Fix tab instead of space in project files
* Normalize target frameworks and platforms
* Remove WINRT_NO_MAKE_DETECTION flag. No longer needed?
* Fix AOT and Hosts locations
* Fix Dll version differences on dependency
* Add Common.UI.csproj as refernce to fix dll versions
* Update ControlzEx to normalize dll versions
* Update System.Management version to 7.0.2
* Add GPOWrapper to Registry Preview to fix dll versions
* [PTRun]Reference Microsoft.Extensions.Hosting to fix dll versions
* Fix remaining output paths / dll version conflicts
* [KeyboardManager]Executables still on their own directories
* Fix Monaco paths
* WinAppSDK apps get to play outside again
* Enable VCM settings again
* Fix KBM Editor path again
* [Monaco]Set to own Assets dir
* Fix installer preamble; Fix publish. remove unneeded publishes
* Remove Hardlink functions
* Installer builds again (still needs work to work)
* Readd Monaco to spellcheck excludes
* Fix spellcheck and call publish.cmd again
* [Installer] Remove components that don't need own dirs
* [Installer] Refactor Power Launcher
* [Installer] Refactor Color Picker
* [Installer] Refactor Monaco assets
* [Installer]Generate File script no longer needs to remove files
* [Installer]Refactor FileLocksmith
* [Installer] Refactor Hosts
* [Installer]Refactor Image Resizer
* [Installer]Refactor MouseUtils
* [Installer]Refactor MWB
* [Installer]Refactor MeasureTool
* [Installer]Refactor Peek
* [Installer]Refactor PowerRename and registry fixes
* [Installer]Refactor RegistryPreview
* [Installer]Refactor ShortcutGuide
* [Installer]Refactor Settings
* [Installer]Clean up some unused stuff
* [Installer]Clean up stuff for user install
* [Installer]Fix WinUi3Apps wxs
* [Installer]Fix misplaced folders
* [Installer]Move x86 VCM dll to right path
* Fix monaco language list location
* [Installer]Fix VCM directory reference
* [CI]Fix signing
* [Installer] Fix resources folder for release CI
* [ci]Looks like we still ship NLog on PowerToys Run
* [Settings]Add dependency to avoid dll collision with Experimentation
* [RegistryPreview]Move XAML files to own path
* [RegistryPreview]Fix app icon
* [Hosts]Move XAML files to their own path
* [FileLocksmith]Move XAML files to their own path
* [Peek]Move XAML files to own path
* [ScreenRuler]Move XAML files to its own path
* [Settings]Move XAML to its own path
* [ColorPicker]Move Resources to Assets
* [ShortcutGuide]Move svgs to own Assets path
* [Awake]Move images to assets path
* [Runner]Remove debug checks for PowerToys Run assets
* [PTRun]Move images to its own assets path
* [ImageResizer]Icon for context menu on own assets path
* [PowerRename]Move ico to its own path
* Remove unneeded intermediary directories
* Remove further int dirs
* Move tests to its own output path
* Fix spellcheck
* spellcheck: remove warnings
* [CppAnalyzers]Ignore rule in a tool
* [CI]Check if all deps.json files reference same versions
* fix spellcheck
* [ci]Fix task identation
* [ci]Add script to guard against asset conflicts
* [ci]Add more deps.json audit steps in the release build
* Add xbf to spellcheck expects
* Fix typo in asset conflict check scripts
* Fix some more dependency conflicts
* Downgrade CsWinRT to have the same dll version as sdk
* [ci]Do a recursive check for every deps.json
* Fix spellcheck error inside comment
* [ci]Fix asset script error
* [ci]Name deps.json verify tasks a bit better
* [ci]Improve deps json verify script output
* [ci]Update WinRT version to the same running in CI
* Also upgrade CsWinRT in NOTICE.MD
* [PowerRename]Move XAML files to own path
* [Common]Fix Settings executable path
* [ci]Verify there's no xbf files in app directories
* [installer]Fix firewall path
* [Monaco]Move new files to their proper assets path
* [Monaco]Fix paths for new files after merge
* [Feedback]Removed unneeded build conditions
* [Feedback]Clear vcxproj direct reference to frameworks
* [Feedback]RunPlugins name to hold PTRun plugins
* [Feedback]Remove unneeded foreach
* [Feedback]Shortcut Guide svgs with ** in project file
* [Feedback]Fix spellcheck
* Move color values to constant
* Fix MonacoPreview flickering on file selection and resizing
* Fix MarkdownPreview flickering on file selection and resizing
* Fix SvgPreview flickering on file selection and resizing
* Create Settings class and standardize background setting for MarkdownPreview
* Replace ColorTranslator.FromHtml with Color.FromArgb for constant color settings
* Use existing SetBackground
* Remove duplicate GetTheme function
* Update src/modules/previewpane/MarkdownPreviewHandler/Settings.cs
