* Add Loaded/Unloaded events
* Don't allow OnLoaded() twice unless OnUnloaded() is called
* Call OnLoadedCore within Render()
* Call OnLoadedCore() from OnAttachedToVisualTreeCore by scheduling it on the dispatcher
* Improve comments
* Queue loaded events
* Make the loaded queue static
* Make more members static per review
* Make sure control wasn't already scheduling for Loaded event
* Add locks around HashSet usage for when enumerating
* Remove from loaded queue in OnUnloadedCore() as failsafe
* Make Window raise its own Loaded/Unloaded events
* Attempt to fix leak tests to work with Loaded events
* Make WindowBase raise its own Loaded/Unloaded events
* Move hotkey leak tests to the LeakTest project
* Address some code review comments
* Attempt at actually queueing Loaded events again
* Fix typo
* Minor improvements
* Update controls benchmark
Co-authored-by: Max Katz <maxkatz6@outlook.com>
Co-authored-by: Jumar Macato <16554748+jmacato@users.noreply.github.com>
The validating layer introduced in #7369 has done its job and caught a few bugs, but was causing difficulties in certain places so removing it now.
Fixes#7573
#7369 introduced a validating layer over `WindowBase.PlatformImpl` that is only enabled in debug mode. This validating layer was causing unit tests to fail in debug mode but not on CI which runs tests in release mode.
Fix the problems:
- `PopupRoot` was not correctly disposing itself on `Dispose` - make it call `HandleClosed` in order to perform the same steps as when the popup is closed via other means
- Some unit tests try to access the `PlatformImpl` to get hold of a mock. Added `ValidatingWindowImpl.Unwrap` to allow this
- `ValidatingWindowBaseImpl.Activated` was setting the wrong property on the wrapped `PlatformImpl`.
Added an `IDataTemplateHost` interface with a `IsDataTemplatesInitialized` property to prevent the need for allocating empty `DataTemplates` collections for many controls.
Max Katz
Steven Kirk
Nikita Tsukanov
robloo
Adir Hudayfi
Giuseppe Lippolis
Dan Walmsley
Dariusz Komosinski
Steven Kirk
Jeremy Koritzinsky