When DevTools was opened, all layout property values were being promoted to `LocalValue`s because the `_updatingFromControl` flag was not being set during initialization, causing the initial values to be written back out to the control as local values.
* 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 call to `_subscription.Dispose()` causes `BindingEntry.Dispose()` to call `_subscription.Dispose()`, but in this case the `BindingEntry._subscription` instance is the `PropertySetterInstance`!
Except now `PropertySetterInstance._subscription` is null, and so `PropertySetterInstance.Dispose` called `ClearValue`, which is obviously wrong.
Exposed by the previous fix for #8372: re-entrancy in `PropertySetterInstance.Dispose()` is causing detaching a style to call `ClearValue` on the property. Previously this wasn't a problem as `ClearValue` didn't work, but now it is.
(Also added one passing test which tests the same scenario in `PropertySetterBindingInstance` for future coverage)
Steven Kirk
Steven Kirk
Max Katz
Nikita Tsukanov
Yoh Deadfall
robloo
Benedikt Stebner
Tetedeiench
Jumar Macato
Oxc3
Todd
Lubomir Tetak
ahmedmohammedfawzy