chuan/Ursa.Avalonia
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WIP: inherit binding from root.

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This commit is contained in:
rabbitism
2024-02-12 12:12:36 +08:00
parent 0a3dcf0d8c
commit bc9412aad2
5 changed files with 184 additions and 36 deletions
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38
src/Ursa/Controls/NavMenu/NavMenuItem.cs
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@@ -1,5 +1,7 @@
using Avalonia;
using System.Windows.Input;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Metadata;
using Avalonia.Controls.Mixins;
using Avalonia.Controls.Primitives;
using Avalonia.Controls.Templates;
@@ -9,8 +11,11 @@ using Avalonia.VisualTree;
namespace Ursa.Controls;
[PseudoClasses(PC_Highlighted)]
public class NavMenuItem: HeaderedSelectingItemsControl
{
public const string PC_Highlighted = "highlighted";
private NavMenu? _rootMenu;
public static readonly StyledProperty<object?> IconProperty = AvaloniaProperty.Register<NavMenuItem, object?>(
@@ -31,6 +36,15 @@ public class NavMenuItem: HeaderedSelectingItemsControl
set => SetValue(IconTemplateProperty, value);
}
public static readonly StyledProperty<ICommand?> CommandProperty = AvaloniaProperty.Register<NavMenuItem, ICommand?>(
nameof(Command));
public ICommand? Command
{
get => GetValue(CommandProperty);
set => SetValue(CommandProperty, value);
}
public new static readonly StyledProperty<bool> IsSelectedProperty =
SelectingItemsControl.IsSelectedProperty.AddOwner<NavMenuItem>();
@@ -39,6 +53,8 @@ public class NavMenuItem: HeaderedSelectingItemsControl
get => GetValue(IsSelectedProperty);
set => SetValue(IsSelectedProperty, value);
}
static NavMenuItem()
{
@@ -56,26 +72,34 @@ public class NavMenuItem: HeaderedSelectingItemsControl
return new NavMenuItem();
}
protected override void PrepareContainerForItemOverride(Control container, object? item, int index)
{
base.PrepareContainerForItemOverride(container, item, index);
if (container is NavMenuItem navMenuItem)
{
if (_rootMenu?.HeaderBinding is not null)
{
container[!HeaderProperty] = _rootMenu.HeaderBinding;
}
}
}
protected override void OnAttachedToVisualTree(VisualTreeAttachmentEventArgs e)
{
base.OnAttachedToVisualTree(e);
_rootMenu = GetRootMenu();
UpdateSelection(1);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
_rootMenu?.SelectItem(this);
e.Handled = true;
}
private NavMenu? GetRootMenu()
{
var root = this.FindAncestorOfType<NavMenu>();
if (root is null)
{
root = this.FindLogicalAncestorOfType<NavMenu>();
}
var root = this.FindAncestorOfType<NavMenu>() ?? this.FindLogicalAncestorOfType<NavMenu>();
return root;
}
}