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feat(AcrylicBrush): First Android version
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134 changes: 116 additions & 18 deletions
134
src/Uno.UI/UI/Xaml/Media/AcrylicBrush/Android/AcrylicBrush.Android.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,40 +1,138 @@ | ||
| using System; | ||
| #pragma warning disable CS0618 | ||
| using System; | ||
| using Android.Graphics; | ||
| using Android.Graphics.Drawables; | ||
| using Android.Views; | ||
| using Java.Lang; | ||
| using Uno.Disposables; | ||
| using Uno.UI.Controls; | ||
| using Uno.UI.Xaml.Media; | ||
| using Windows.UI.Xaml.Controls; | ||
|
|
||
| namespace Windows.UI.Xaml.Media | ||
| { | ||
| public partial class AcrylicBrush | ||
| { | ||
| protected override Paint GetPaintInner(Foundation.Rect destinationRect) | ||
| { | ||
| /// <summary> | ||
| /// Returns the fallback solid color brush. | ||
| /// </summary> | ||
| /// <param name="destinationRect">Destination rect.</param> | ||
| /// <returns></returns> | ||
| protected override Paint GetPaintInner(Foundation.Rect destinationRect) => | ||
| new Paint() | ||
| { | ||
| Color = FallbackColorWithOpacity, | ||
| AntiAlias = true | ||
| }; | ||
|
|
||
| internal IDisposable Subscribe(BindableView owner, Foundation.Rect drawArea, Path maskingPath) | ||
| { | ||
| return new Paint() { Color = FallbackColorWithOpacity, AntiAlias = true }; | ||
| var state = new AcrylicState(owner, drawArea, maskingPath); | ||
|
|
||
| var compositeDisposable = new CompositeDisposable(6); | ||
|
|
||
| this.RegisterDisposablePropertyChangedCallback( | ||
| AlwaysUseFallbackProperty, | ||
| (_, __) => Apply(state)) | ||
| .DisposeWith(compositeDisposable); | ||
|
|
||
| this.RegisterDisposablePropertyChangedCallback( | ||
| FallbackColorProperty, | ||
| (_, __) => Apply(state)) | ||
| .DisposeWith(compositeDisposable); | ||
|
|
||
| this.RegisterDisposablePropertyChangedCallback( | ||
| TintColorProperty, | ||
| (_, __) => Apply(state)) | ||
| .DisposeWith(compositeDisposable); | ||
|
|
||
| this.RegisterDisposablePropertyChangedCallback( | ||
| TintOpacityProperty, | ||
| (_, __) => Apply(state)) | ||
| .DisposeWith(compositeDisposable); | ||
|
|
||
| this.RegisterDisposablePropertyChangedCallback( | ||
| OpacityProperty, | ||
| (_, __) => Apply(state)) | ||
| .DisposeWith(compositeDisposable); | ||
|
|
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| Apply(state); | ||
|
|
||
| Disposable.Create(() => | ||
| { | ||
| state.FallbackDisposable.Disposable = null; | ||
| state.BlurDisposable.Disposable = null; | ||
| }).DisposeWith(compositeDisposable); | ||
|
|
||
| return compositeDisposable; | ||
| } | ||
|
|
||
| bool ready = false; | ||
| internal IDisposable Apply(BindableView owner) | ||
| private void Apply(AcrylicState state) | ||
| { | ||
| if(!(owner is Border)) | ||
| if (AlwaysUseFallback || !SupportsBlur()) | ||
| { | ||
| throw new InvalidOperationException( | ||
| "AcrylicBrush can currently be applied " + | ||
| "to empty border only on Android"); | ||
| state.BlurDisposable.Disposable = null; | ||
|
|
||
| // Fall back to solid color | ||
| var fillPaint = GetFillPaint(Foundation.Rect.Empty); | ||
| ExecuteWithNoRelayout(state.Owner, v => v.SetBackgroundDrawable(Brush.GetBackgroundDrawable(this, state.DrawArea, fillPaint, state.MaskingPath))); | ||
|
|
||
| if (state.FallbackDisposable.Disposable == null) | ||
| { | ||
| state.FallbackDisposable.Disposable = Disposable.Create( | ||
| () => ExecuteWithNoRelayout(state.Owner, v => v.SetBackgroundDrawable(null))); | ||
| } | ||
| } | ||
| View v = owner; | ||
|
|
||
| if (!ready) | ||
| else | ||
| { | ||
| Cleanup(owner); | ||
| SetAcrylicBlur(owner); | ||
| UpdateProperties(); | ||
| ready = true; | ||
| state.FallbackDisposable.Disposable = null; | ||
|
|
||
| ApplyAcrylicBlur(state); | ||
|
|
||
| if (state.BlurDisposable.Disposable == null) | ||
| { | ||
| state.BlurDisposable.Disposable = Disposable.Create( | ||
| () => RemoveAcrylicBlur(state)); | ||
| } | ||
| } | ||
| return new CompositeDisposable(); | ||
| } | ||
|
|
||
| private void ExecuteWithNoRelayout(BindableView view, Action<BindableView> action) | ||
| { | ||
| using (view.PreventRequestLayout()) | ||
| { | ||
| action(view); | ||
| } | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Wraps the acrylic brush metadata for a single view. | ||
| /// </summary> | ||
| private class AcrylicState | ||
| { | ||
| public AcrylicState(BindableView owner, Foundation.Rect drawArea, Path maskingPath) | ||
| { | ||
| Owner = owner; | ||
| DrawArea = drawArea; | ||
| MaskingPath = maskingPath; | ||
| } | ||
|
|
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| public SerialDisposable FallbackDisposable { get; } = new SerialDisposable(); | ||
|
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| public SerialDisposable BlurDisposable { get; } = new SerialDisposable(); | ||
|
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| public GradientDrawable BackgroundDrawable { get; set; } | ||
|
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| public View BlurViewWrapper { get; set; } | ||
|
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| public RealtimeBlurView BlurView { get; set; } | ||
|
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| public BindableView Owner { get; } | ||
|
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| public Foundation.Rect DrawArea { get; } | ||
|
|
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| public Path MaskingPath { get; } | ||
| } | ||
| } | ||
| } | ||
| #pragma warning restore CS6018 |
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