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feat: deal with selection.

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This commit is contained in:
rabbitism
2024-02-12 00:37:20 +08:00
parent 5e5e0844e1
commit 0a3dcf0d8c
4 changed files with 47 additions and 16 deletions
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4
demo/Ursa.Demo/Pages/NavMenuDemo.axaml
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@@ -5,7 +5,7 @@
xmlns:u="https://irihi.tech/ursa"
mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
x:Class="Ursa.Demo.Pages.NavMenuDemo">
<u:NavMenu>
<u:NavMenu Name="menu">
<u:NavMenuItem Header="Menu 1">
<u:NavMenuItem.Icon>
<Rectangle Width="10" Height="10" Fill="Red"></Rectangle>
@@ -21,5 +21,7 @@
<Rectangle Width="30" Height="10" Fill="Red"></Rectangle>
</u:NavMenuItem.Icon>
</u:NavMenuItem>
<u:Divider Content="Divider"></u:Divider>
<TextBlock Text="{Binding #menu.SelectedItem}"></TextBlock>
</u:NavMenu>
</UserControl>

24
src/Ursa.Themes.Semi/Controls/NavMenu.axaml
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@@ -14,19 +14,17 @@
<ControlTheme TargetType="u:NavMenuItem" x:Key="{x:Type u:NavMenuItem}">
<Setter Property="Template">
<ControlTemplate TargetType="u:NavMenuItem">
<Expander>
<Expander.Header>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" SharedSizeGroup="Icon" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<ContentPresenter Content="{TemplateBinding Icon}" HorizontalAlignment="Left" />
<ContentPresenter Grid.Column="1" Content="{TemplateBinding Header}" />
</Grid>
</Expander.Header>
<ItemsPresenter ItemsPanel="{TemplateBinding ItemsPanel}" />
</Expander>
<Grid RowDefinitions="Auto, *">
<Grid Grid.Row="0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" SharedSizeGroup="Icon" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<ContentPresenter Content="{TemplateBinding Icon}" HorizontalAlignment="Left" />
<ContentPresenter Grid.Column="1" Content="{TemplateBinding Header}" />
</Grid>
<ItemsPresenter Grid.Row="1" ItemsPanel="{TemplateBinding ItemsPanel}" />
</Grid>
</ControlTemplate>
</Setter>
</ControlTheme>

34
src/Ursa/Controls/NavMenu/NavMenu.cs
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@@ -1,11 +1,33 @@
using Avalonia.Controls;
using System.Diagnostics;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Data;
using Avalonia.LogicalTree;
namespace Ursa.Controls;
public class NavMenu: SelectingItemsControl
public class NavMenu: ItemsControl
{
public static readonly StyledProperty<object?> SelectedItemProperty = AvaloniaProperty.Register<NavMenu, object?>(
nameof(SelectedItem), defaultBindingMode: BindingMode.TwoWay);
public object? SelectedItem
{
get => GetValue(SelectedItemProperty);
set => SetValue(SelectedItemProperty, value);
}
static NavMenu()
{
SelectedItemProperty.Changed.AddClassHandler<NavMenu, object?>((o, e) => o.OnSelectedItemChange(e));
}
private void OnSelectedItemChange(AvaloniaPropertyChangedEventArgs<object?> args)
{
Debug.WriteLine(args.NewValue.Value);
}
protected override bool NeedsContainerOverride(object? item, int index, out object? recycleKey)
{
return NeedsContainer<NavMenuItem>(item, out recycleKey);
@@ -27,6 +49,14 @@ public class NavMenu: SelectingItemsControl
child.IsSelected = false;
}
}
if (item.DataContext is not null && item.DataContext != this.DataContext)
{
SelectedItem = item.DataContext;
}
else
{
SelectedItem = item;
}
item.IsSelected = true;
}
}

1
src/Ursa/Controls/NavMenu/NavMenuItem.cs
View File

@@ -60,6 +60,7 @@ public class NavMenuItem: HeaderedSelectingItemsControl
{
base.OnAttachedToVisualTree(e);
_rootMenu = GetRootMenu();
UpdateSelection(1);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)