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feat(responsive): add support for non-FrameworkElement
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Diagnostics.CodeAnalysis; | ||
| using System.Linq; | ||
|
|
||
| #if IS_WINUI | ||
| using Microsoft.UI.Xaml; | ||
| using Microsoft.UI.Xaml.Controls; | ||
| using Microsoft.UI.Xaml.Documents; | ||
| #else | ||
| using Windows.UI.Xaml; | ||
| using Windows.UI.Xaml.Controls; | ||
| using Windows.UI.Xaml.Documents; | ||
| #endif | ||
|
|
||
| namespace Uno.Toolkit.UI; | ||
|
|
||
| public static class ResponsiveBehavior | ||
| { | ||
| #region DependencyProperty: IsEnabled | ||
|
|
||
| public static DependencyProperty IsEnabledProperty { [DynamicDependency(nameof(GetIsEnabled))] get; } = DependencyProperty.RegisterAttached( | ||
| "IsEnabled", | ||
| typeof(bool), | ||
| typeof(ResponsiveBehavior), | ||
| new PropertyMetadata(default(bool), OnIsEnabledChanged)); | ||
|
|
||
| [DynamicDependency(nameof(SetIsEnabled))] | ||
| public static bool GetIsEnabled(DependencyObject obj) => (bool)obj.GetValue(IsEnabledProperty); | ||
| [DynamicDependency(nameof(GetIsEnabled))] | ||
| public static void SetIsEnabled(DependencyObject obj, bool value) => obj.SetValue(IsEnabledProperty, value); | ||
|
|
||
| #endregion | ||
|
|
||
| internal static bool IsChildSupported(DependencyObject? child) => child switch | ||
| { | ||
| ColumnDefinition or RowDefinition => true, | ||
| Inline => true, | ||
|
|
||
| _ => false, | ||
| }; | ||
|
|
||
| private static void OnIsEnabledChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e) | ||
| { | ||
| if (sender is Grid g) | ||
| { | ||
| g.Loaded += OnGridLoaded; | ||
| } | ||
| else if (sender is TextBlock tb) | ||
| { | ||
| tb.Loaded += OnTextBlockLoaded; | ||
| } | ||
| else | ||
| { | ||
| throw new NotSupportedException($"ResponsiveBehavior is not supported on '{sender.GetType()}'."); | ||
| } | ||
| } | ||
|
|
||
| private static void OnGridLoaded(object sender, RoutedEventArgs e) | ||
| { | ||
| if (sender is not Grid host) return; | ||
|
|
||
| var markups = Enumerable | ||
| .Concat<DependencyObject>(host.ColumnDefinitions, host.RowDefinitions) | ||
| .SelectMany(ResponsiveExtension.GetAllInstancesFor); | ||
| foreach (var markup in markups) | ||
| { | ||
| markup.InitializeByProxy(host); | ||
| } | ||
| } | ||
|
|
||
| private static void OnTextBlockLoaded(object sender, RoutedEventArgs e) | ||
| { | ||
| if (sender is not TextBlock host) return; | ||
|
|
||
| // There is actually be more elements than what's defined in the xaml; | ||
| // these come from the whitespaces... and, they are fine. | ||
| var markups = FlattenInlines(host) | ||
| .SelectMany(ResponsiveExtension.GetAllInstancesFor); | ||
| foreach (var markup in markups) | ||
| { | ||
| markup.InitializeByProxy(host); | ||
| } | ||
| } | ||
|
|
||
| private static IEnumerable<Inline> FlattenInlines(TextBlock tb) => FlattenInlines(tb.Inlines); | ||
| private static IEnumerable<Inline> FlattenInlines(InlineCollection inlines) | ||
| { | ||
| foreach (var inline in inlines) | ||
| { | ||
| yield return inline; | ||
|
|
||
| if (inline is Span span) | ||
| { | ||
| foreach (var nested in FlattenInlines(span.Inlines)) | ||
| { | ||
| yield return nested; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
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