var label = new Label();
+ var viewModel = new Object();
+ shell.BindingContext = viewModel;
+
shell.FlyoutHeader = label;
Assert.AreEqual(((IShellController)shell).FlyoutHeader, label);
});
Assert.AreEqual(((IShellController)shell).FlyoutHeader, label2);
- Assert.AreEqual(((IShellController)shell).FlyoutHeader.BindingContext, label);
+ Assert.AreEqual(((IShellController)shell).FlyoutHeader.BindingContext, viewModel);
shell.FlyoutHeaderTemplate = null;
shell.GoToAsync("//rootlevelcontent1");
Assert.AreEqual(shell.CurrentItem, item1);
}
+
+ [Test]
+ public async Task TitleViewBindingContext()
+ {
+ Shell shell = new Shell();
+ ContentPage page = new ContentPage();
+ shell.Items.Add(CreateShellItem(page));
+ page.BindingContext = new { Text = "Binding" };
+
+ // setup title view
+ StackLayout layout = new StackLayout() { BackgroundColor = Color.White };
+ Label label = new Label();
+ label.SetBinding(Label.TextProperty, "Text");
+ layout.Children.Add(label);
+ Shell.SetTitleView(page, layout);
+
+ Assert.AreEqual("Binding", label.Text);
+ page.BindingContext = new { Text = "Binding Changed" };
+ Assert.AreEqual("Binding Changed", label.Text);
+ }
+
+ [Test]
+ public async Task VisualPropagationPageLevel()
+ {
+ Shell shell = new Shell();
+ ContentPage page = new ContentPage();
+ shell.Items.Add(CreateShellItem(page));
+
+ // setup title view
+ StackLayout titleView = new StackLayout() { BackgroundColor = Color.White };
+ Button button = new Button();
+ titleView.Children.Add(button);
+ Shell.SetTitleView(page, titleView);
+ IVisualController visualController = button as IVisualController;
+
+
+ Assert.AreEqual(page, titleView.Parent);
+
+ Assert.AreEqual(VisualMarker.Default, ((IVisualController)button).EffectiveVisual);
+ page.Visual = VisualMarker.Material;
+ Assert.AreEqual(VisualMarker.Material, ((IVisualController)button).EffectiveVisual);
+ }
+
+ [Test]
+ public async Task VisualPropagationShellLevel()
+ {
+ Shell shell = new Shell();
+ ContentPage page = new ContentPage();
+ shell.Items.Add(CreateShellItem(page));
+
+ // setup title view
+ StackLayout titleView = new StackLayout() { BackgroundColor = Color.White };
+ Button button = new Button();
+ titleView.Children.Add(button);
+ Shell.SetTitleView(page, titleView);
+ IVisualController visualController = button as IVisualController;
+
+
+ Assert.AreEqual(page, titleView.Parent);
+ Assert.AreEqual(VisualMarker.Default, ((IVisualController)button).EffectiveVisual);
+ shell.Visual = VisualMarker.Material;
+ Assert.AreEqual(VisualMarker.Material, ((IVisualController)button).EffectiveVisual);
+ }
+
+ [Test]
+ public async Task FlyoutViewVisualPropagation()
+ {
+ Shell shell = new Shell();
+ ContentPage page = new ContentPage();
+ shell.Items.Add(CreateShellItem(page));
+
+
+ // setup title view
+ StackLayout flyoutView = new StackLayout() { BackgroundColor = Color.White };
+ Button button = new Button();
+ flyoutView.Children.Add(button);
+ shell.SetValue(Shell.FlyoutHeaderProperty, flyoutView);
+
+ IVisualController visualController = button as IVisualController;
+ Assert.AreEqual(VisualMarker.Default, visualController.EffectiveVisual);
+ shell.Visual = VisualMarker.Material;
+ Assert.AreEqual(VisualMarker.Material, visualController.EffectiveVisual);
+ }
+
+ [Test]
+ public async Task FlyoutViewBindingContext()
+ {
+ Shell shell = new Shell();
+ ContentPage page = new ContentPage();
+ shell.Items.Add(CreateShellItem(page));
+ shell.BindingContext = new { Text = "Binding" };
+
+ // setup title view
+ StackLayout flyoutView = new StackLayout() { BackgroundColor = Color.White };
+ Label label = new Label();
+ label.SetBinding(Label.TextProperty, "Text");
+ flyoutView.Children.Add(label);
+ shell.SetValue(Shell.FlyoutHeaderProperty, flyoutView);
+
+ Assert.AreEqual("Binding", label.Text);
+ shell.BindingContext = new { Text = "Binding Changed" };
+ Assert.AreEqual("Binding Changed", label.Text);
+ shell.SetValue(Shell.FlyoutHeaderProperty, new ContentView());
+ Assert.AreEqual(null, flyoutView.BindingContext);
+ }
}
}
List<(IAppearanceObserver Observer, Element Pivot)> _appearanceObservers = new List<(IAppearanceObserver Observer, Element Pivot)>();
List<IFlyoutBehaviorObserver> _flyoutBehaviorObservers = new List<IFlyoutBehaviorObserver>();
- event EventHandler IShellController.HeaderChanged
- {
- add { _headerChanged += value; }
- remove { _headerChanged -= value; }
- }
-
event EventHandler IShellController.StructureChanged
{
add { _structureChanged += value; }
remove { _structureChanged -= value; }
}
- event EventHandler _headerChanged;
event EventHandler _structureChanged;
View IShellController.FlyoutHeader => FlyoutHeaderView;
_flyoutHeaderView = value;
if (_flyoutHeaderView != null)
OnChildAdded(_flyoutHeaderView);
- _headerChanged?.Invoke(this, EventArgs.Empty);
}
}
+ protected override void OnBindingContextChanged()
+ {
+ base.OnBindingContextChanged();
+ if (FlyoutHeaderView != null)
+ SetInheritedBindingContext(FlyoutHeaderView, BindingContext);
+ }
+
List<List<Element>> IShellController.GenerateFlyoutGrouping()
{
// The idea here is to create grouping such that the Flyout would
else
FlyoutHeaderView = null;
}
- else
- {
- FlyoutHeaderView.BindingContext = newVal;
- }
}
void OnFlyoutHeaderTemplateChanged(DataTemplate oldValue, DataTemplate newValue)
else
{
var newHeaderView = (View)newValue.CreateContent(FlyoutHeader, this);
- newHeaderView.BindingContext = FlyoutHeader;
FlyoutHeaderView = newHeaderView;
}
}
projects / platform / core / csapi / xsf.git / commitdiff