chuan/Ursa.Avalonia
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feat: change Items to readonly.

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This commit is contained in:
rabbitism
2023-06-29 10:33:13 +08:00
parent 69e2ce9980
commit b848cad0a3
1 changed files with 35 additions and 11 deletions
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44
src/Ursa/Controls/TagInput/TagInput.cs
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@@ -31,12 +31,13 @@ public class TagInput: TemplatedControl
set => SetValue(TagsProperty, value); set => SetValue(TagsProperty, value);
} }
public static readonly StyledProperty<IList> ItemsProperty = AvaloniaProperty.Register<TagInput, IList>( public static readonly DirectProperty<TagInput, IList> ItemsProperty = AvaloniaProperty.RegisterDirect<TagInput, IList>(
nameof(Items)); nameof(Items), o => o.Items);
private IList _items;
public IList Items public IList Items
{ {
get => GetValue(ItemsProperty); get => _items;
set => SetValue(ItemsProperty, value); private set => SetAndRaise(ItemsProperty, ref _items, value);
} }
public TagInput() public TagInput()
@@ -83,17 +84,41 @@ public class TagInput: TemplatedControl
set => SetValue(AllowDuplicatesProperty, value); set => SetValue(AllowDuplicatesProperty, value);
} }
static TagInput()
{
InputThemeProperty.Changed.AddClassHandler<TagInput>((o, e) => o.OnInputThemePropertyChanged(e));
TagsProperty.Changed.AddClassHandler<TagInput>((o, e) => o.OnTagsPropertyChanged(e));
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e) protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{ {
base.OnApplyTemplate(e); base.OnApplyTemplate(e);
_itemsControl = e.NameScope.Find<ItemsControl>(PART_ItemsControl); _itemsControl = e.NameScope.Find<ItemsControl>(PART_ItemsControl);
if (IsSet(InputThemeProperty) && InputTheme.TargetType == typeof(TextBox))
{
_textBox.Theme = InputTheme;
}
Items.Add(_textBox); Items.Add(_textBox);
} }
private void OnInputThemePropertyChanged(AvaloniaPropertyChangedEventArgs args)
{
var newTheme = args.GetNewValue<ControlTheme>();
if (newTheme.TargetType == typeof(TextBox))
{
_textBox.Theme = newTheme;
}
}
private void OnTagsPropertyChanged(AvaloniaPropertyChangedEventArgs args)
{
var newTags = args.GetNewValue<IList<string>>();
for (int i = 0; i < Items.Count - 1; i++)
{
Items.RemoveAt(Items.Count-1);
}
for (int i = 0; i < newTags.Count; i++)
{
Items.Insert(Items.Count - 1, newTags[i]);
}
}
private void OnTextBoxKeyDown(object? sender, KeyEventArgs args) private void OnTextBoxKeyDown(object? sender, KeyEventArgs args)
{ {
if (args.Key == Key.Enter) if (args.Key == Key.Enter)
@@ -141,8 +166,7 @@ public class TagInput: TemplatedControl
{ {
if (o is Control t) if (o is Control t)
{ {
var presenter = t.Parent as ContentPresenter; if (t.Parent is ContentPresenter presenter)
if (presenter != null)
{ {
int? index = _itemsControl?.IndexFromContainer(presenter); int? index = _itemsControl?.IndexFromContainer(presenter);
if (index is >= 0 && index < Items.Count - 1) if (index is >= 0 && index < Items.Count - 1)