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fix: Properly resubscribe to nested prop changes #622

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merged 3 commits into from
Jun 22, 2023
Merged

fix: Properly resubscribe to nested prop changes #622

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90e1377
fix: Properly resubscribe to nested prop changes
kazo0 Jun 21, 2023
a116a11
chore: whitespace
kazo0 Jun 21, 2023
deebb06
chore: whitespace
kazo0 Jun 22, 2023
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64 changes: 51 additions & 13 deletions src/Uno.Toolkit.RuntimeTests/Tests/NavigationBarTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -22,8 +22,10 @@
using Microsoft.UI.Xaml.Media;
using Microsoft.UI.Xaml.Navigation;
using Microsoft.UI.Xaml;
using Microsoft.UI;
#else
using Windows.UI.Xaml.Controls;
using Windows.UI;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Markup;
Expand Down Expand Up @@ -124,7 +126,7 @@ public async Task MainCommand_In_Popup_With_Page_With_BackStack(MainCommandMode

var shouldGoBack = mainCommandMode == MainCommandMode.Back;
var popup = new Popup { Width = 100, Height = 100, HorizontalOffset = 100, VerticalOffset = 100 };

var content = new Border { Width = 100, Height = 100, Child = popup };
var frame = new Frame() { Width = 400, Height = 400 };

Expand Down Expand Up @@ -206,6 +208,42 @@ public async Task MainCommand_In_Popup_With_Page_With_BackStack(MainCommandMode
}
}

#if __ANDROID__ || __IOS__
[TestMethod]
public async Task NavigationBar_Dynamic_Background()
{
var frame = new Frame() { Width = 400, Height = 400 };
await UnitTestUIContentHelperEx.SetContentAndWait(frame);
await UnitTestsUIContentHelper.WaitForIdle();

var navBar = await frame.NavigateAndGetNavBar<RedNavBarPage>();

Assert.IsTrue(navBar!.Background is SolidColorBrush redBrush && redBrush.Color == Colors.Red);

try
{
navBar!.Background = new SolidColorBrush(Colors.Green);
}
catch (Exception ex)
{
Assert.Fail("Expected no exception, but got: " + ex.Message);
}

Assert.IsTrue(navBar!.Background is SolidColorBrush greenBrush && greenBrush.Color == Colors.Green);
}

private sealed partial class RedNavBarPage : Page
{
public RedNavBarPage()
{
Content = new NavigationBar
{
Background = new SolidColorBrush(Colors.Red),
};
}
}
#endif

#if __IOS__
[TestMethod]
public async Task Can_Set_MainCommand_Label_Or_Content()
Expand All @@ -224,7 +262,7 @@ public async Task Can_Set_MainCommand_Label_Or_Content()

// ContentTitlePage
var contentTitleNavBar = await frame.NavigateAndGetNavBar<ContentTitlePage>();
Assert.AreEqual("Content Title", contentTitleNavBar?.GetNativeNavBar()?.BackItem?.BackButtonTitle);
Assert.AreEqual("Content Title", contentTitleNavBar?.GetNativeNavBar()?.BackItem?.BackButtonTitle);
}

[TestMethod]
Expand All @@ -234,7 +272,7 @@ public async Task MainCommand_Use_LeftBarButtonItem_When_No_BackStack()
NavigationBar? secondPageNavBar = null;

var popup = new Popup { Width = 100, Height = 100, HorizontalOffset = 100, VerticalOffset = 100 };

var content = new Border { Width = 100, Height = 100, Child = popup };
var frame = new Frame() { Width = 400, Height = 400 };

Expand All @@ -258,7 +296,7 @@ public async Task MainCommand_Use_LeftBarButtonItem_When_No_BackStack()
var renderedNativeNavItem = firstPageNavBar.GetNativeNavItem();

Assert.IsNotNull(renderedNativeNavItem?.LeftBarButtonItem);

frame.Navigate(typeof(NavBarSecondPage));

await UnitTestsUIContentHelper.WaitForIdle();
Expand Down Expand Up @@ -292,7 +330,7 @@ public async Task NavigationBar_Does_Render()
[TestMethod]
public async Task NavigationBar_Does_Render_Within_AutoLayout()
{
var frame = new Frame { Width = 200, Height = 200 };;
var frame = new Frame { Width = 200, Height = 200 };
await UnitTestUIContentHelperEx.SetContentAndWait(frame);

frame.Navigate(typeof(NavBarAutoLayoutPage));
Expand All @@ -305,7 +343,7 @@ public async Task NavigationBar_Does_Render_Within_AutoLayout()
[TestMethod]
public async Task NavigationBar_Renders_BackItem_Within_AutoLayout()
{
var frame = new Frame { Width = 600, Height = 200 };;
var frame = new Frame { Width = 600, Height = 200 };
await UnitTestUIContentHelperEx.SetContentAndWait(frame);

var firstNavBar = await frame.NavigateAndGetNavBar<NavBarAutoLayoutPage>();
Expand Down Expand Up @@ -334,7 +372,7 @@ private static void AssertNavigationBar(Frame frame)
Assert.AreSame(renderedNativeNavBar, presenter.NavigationController.NavigationBar);
}



private sealed partial class FirstPage : Page
{
Expand Down Expand Up @@ -391,17 +429,18 @@ public NavBarTestPage()
#endif
}

#if __IOS__
#if __IOS__ || __ANDROID__
public static class NavigationBarTestHelper
{
#if __IOS__
public static UINavigationBar? GetNativeNavBar(this NavigationBar? navBar) => navBar
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?.TryGetRenderer<NavigationBar, NavigationBarRenderer>()
?.Native;
?.TryGetRenderer<NavigationBar, NavigationBarRenderer>()
?.Native;

public static UINavigationItem? GetNativeNavItem(this NavigationBar? navBar) => navBar
?.TryGetRenderer<NavigationBar, NavigationBarNavigationItemRenderer>()
?.Native;

#endif
public static async Task<NavigationBar?> NavigateAndGetNavBar<TPage>(this Frame frame) where TPage : Page
{
frame.Navigate(typeof(TPage));
Expand All @@ -410,8 +449,7 @@ public static class NavigationBarTestHelper
var page = frame.Content as TPage;
await UnitTestsUIContentHelper.WaitForLoaded(page!);
return page?.FindChild<NavigationBar>();
}
}
}
#endif
}

42 changes: 33 additions & 9 deletions src/Uno.Toolkit.UI/Extensions/DependencyObjectExtensions.cs
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Original file line number Diff line number Diff line change
@@ -1,11 +1,11 @@

using System;
using System;
using System.Collections.Generic;
using System.Linq;
using Uno.Disposables;
using Uno.Extensions;
using System.Reflection;
using Microsoft.Extensions.Logging;
using Uno.Logging;

#if IS_WINUI
using Microsoft.UI.Xaml.Controls.Primitives;
Expand Down Expand Up @@ -57,16 +57,23 @@ internal static IDisposable RegisterDisposableNestedPropertyChangedCallback(this

var childDisposable = new SerialDisposable();

childDisposable.Disposable = (instance.GetValue(property) as DependencyObject)?.RegisterDisposableNestedPropertyChangedCallback(callback, subProperties);

var disposable = instance.RegisterDisposablePropertyChangedCallback(property, (s, e) =>
if (instance.TryGetValue(property, out var dpValue))
{
callback(s, e);
childDisposable.Disposable = dpValue?.RegisterDisposableNestedPropertyChangedCallback(callback, subProperties);

var disposable = instance.RegisterDisposablePropertyChangedCallback(property, (s, e) =>
{
callback(s, e);
if (s is { } && s.TryGetValue(property, out var dpValue))
{
childDisposable.Disposable = dpValue?.RegisterDisposableNestedPropertyChangedCallback(callback, subProperties);
}
});

childDisposable.Disposable = s?.RegisterDisposableNestedPropertyChangedCallback(callback, subProperties);
});
return new CompositeDisposable(disposable, childDisposable);
}

return new CompositeDisposable(disposable, childDisposable);
return Disposable.Empty;
});

return new CompositeDisposable(disposables);
Expand Down Expand Up @@ -206,5 +213,22 @@ internal static void SetParent(this DependencyObject dependencyObject, object? p

return property;
}

public static bool TryGetValue(this DependencyObject dependencyObject, DependencyProperty dependencyProperty, out DependencyObject? value)
{
value = default;

try
{
value = dependencyObject.GetValue(dependencyProperty) as DependencyObject;
}
catch (Exception e)
{
typeof(DependencyObjectExtensions).Log().WarnIfEnabled(() => $"Error attempting to read property:", e);
return false;
}

return true;
}
}
}