* Update BindingBase.Instance signature.
- Swap `target` and `targetProperty` order to make it consistent with other similar methods
- Make `targetProperty` nullable as it will need to be null for `MultiBinding`
* IBinding2.Instance needs to accept a null target property.
It will need to be null for `MultiBinding`.
* Attach needs to accept a null target property.
It will need to be null for `MultiBinding`.
* Initial implementation of MultiBindingExpression.
* Fix failing template binding test.
Only publish unset value if we've already published a value.
* Enabled nullability annotations.
* Added passing test for #16084.
* Remove obsolete API usages.
* Bind to Tag not Text.
Prevents test passing when it shouldn't. See https://github.com/AvaloniaUI/Avalonia/pull/16219#discussion_r1665466968
* Handle DoNothing in MultiBindingExpression.
* Modernized accessor syntax in several places
* Toned down the getter modernization
* Block body for properties with code
---------
Co-authored-by: Lehonti Ramos <lehonti@ramos>
- animation/layout/render cycle is now managed from a central location
- animations are now throttled if animation/layout/render pass takes longer than a frame which previously caused a soft-freeze with input not being processed
- the public API is trimmed to make sure that we can make other planned changes during the 11.x support cycle
"Changelog":
- IClock is hidden and is planned to be replaced later
- Animator classes are hidden and are planned to be refactored later
- IAnimation members are hidden, it's supposed to be a marker interface for Style.Animations collection now, to start animations manually use Animation.RunAsync
- Sealed several classes in Avalonia.Animation namespace
- Spring class is removed from the public API (it wasn't possible to use it directly in a meaningful way anyway)
- Sealed brushes, transforms, effects and drawings
- Removed separate dispatcher priorities for Layout and Composition, everything now happens from a central place with Render priority (same as WPF)
- - some private "hook" priorities are added for now, those will be removed later
- IRenderLoop is hidden and removed from locator
- IRenderer is hidden (the plan is to remove that concept later)
- - Renderer.Start/Stop exposed as StartRendering/StopRendering on the toplevel (will be on a CompositionTarget/PresentationSource-like type later)
- - Renderer.Diagnistics exposed as RendererDiagnostics (same)
- - Renderer is no longer created by the platform code and is created by TopLevel itself
- - From the user-code hit-testing should be done by VisualExtensions.GetVisual(s)At, which has the same features
- - For unit tests a separate IHitTester interface is added which can be changed for a particular toplevel
- ILayoutManager is hidden
- - LayoutManager.ExecuteLayoutPass() exposed as TopLevel.UpdateLayout()
- Custom animators now have a separate base class that only deals with interpolation
Minor improvements:
- Compositor has a mode that doesn't use DispatcherTimers, useful for unit tests
- Introduced ScopedTestBase that auto-resets the locator when test is finished
This was signalled for removal in #9553, but I was hesitant to do it because it will be in use by a lot of code in order to override `StyleKey`. Instead of removing it, deprecate it and provide a virtual `StyledElement.StyleKeyOverride` property as the supported way of overriding a control's style key.
The WPF equivalent (`Style`) is in `FrameworkElement` so it would make sense. Will also make stuff a lot easier and removes the need for an `IThemed` interface.
- Don't use Rx in the styling system. Instead introduces `IStyleActivator` which is like an `IObservable<bool>`-lite in order to cut down on allocations.
- #nullable enable on touched files
Rather than just use a standard `Binding`, make `TemplateBinding` a lightweight binding in the case where the binding is simply to a property on the templated parent.