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feat: add two attached properties to mark an custom element triggering drag move or close.

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This commit is contained in:
rabbitism
2024-02-08 23:15:26 +08:00
parent f758ceb760
commit 974afa33c5
5 changed files with 128 additions and 22 deletions
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144
src/Ursa/Controls/Dialog/DialogControlBase.cs
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@@ -1,8 +1,10 @@
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Metadata;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Interactivity;
using Avalonia.LogicalTree;
using Irihi.Avalonia.Shared.Helpers;
using Ursa.Common;
using Ursa.Controls.OverlayShared;
@@ -13,12 +15,12 @@ namespace Ursa.Controls;
[TemplatePart(PART_CloseButton, typeof(Button))]
[TemplatePart(PART_TitleArea, typeof(Panel))]
[PseudoClasses(PC_Modal)]
public abstract class DialogControlBase: OverlayFeedbackElement
public abstract class DialogControlBase : OverlayFeedbackElement
{
public const string PART_CloseButton = "PART_CloseButton";
public const string PART_TitleArea = "PART_TitleArea";
public const string PC_Modal = ":modal";
internal HorizontalPosition HorizontalAnchor { get; set; } = HorizontalPosition.Center;
internal VerticalPosition VerticalAnchor { get; set; } = VerticalPosition.Center;
internal HorizontalPosition ActualHorizontalAnchor { get; set; }
@@ -29,17 +31,17 @@ public abstract class DialogControlBase: OverlayFeedbackElement
internal double? VerticalOffsetRatio { get; set; }
internal bool CanClickOnMaskToClose { get; set; }
internal bool CanLightDismiss { get; set; }
internal bool CanDragMove { get; set; }
protected internal Button? _closeButton;
private Panel? _titleArea;
internal void SetAsModal(bool modal)
{
PseudoClasses.Set(PC_Modal, modal);
}
public static readonly RoutedEvent<DialogLayerChangeEventArgs> LayerChangedEvent = RoutedEvent.Register<CustomDialogControl, DialogLayerChangeEventArgs>(
nameof(LayerChanged), RoutingStrategies.Bubble);
#region Layer Management
public static readonly RoutedEvent<DialogLayerChangeEventArgs> LayerChangedEvent =
RoutedEvent.Register<CustomDialogControl, DialogLayerChangeEventArgs>(
nameof(LayerChanged), RoutingStrategies.Bubble);
public event EventHandler<DialogLayerChangeEventArgs> LayerChanged
{
add => AddHandler(LayerChangedEvent, value);
@@ -54,35 +56,133 @@ public abstract class DialogControlBase: OverlayFeedbackElement
}
}
#endregion
#region DragMove AttachedPropert
public static readonly AttachedProperty<bool> CanDragMoveProperty =
AvaloniaProperty.RegisterAttached<DialogControlBase, InputElement, bool>("CanDragMove");
public static void SetCanDragMove(InputElement obj, bool value) => obj.SetValue(CanDragMoveProperty, value);
public static bool GetCanDragMove(InputElement obj) => obj.GetValue(CanDragMoveProperty);
private static void OnCanDragMoveChanged(InputElement arg1, AvaloniaPropertyChangedEventArgs<bool> arg2)
{
if (arg2.NewValue.Value)
{
arg1.AddHandler(PointerPressedEvent, OnPointerPressed, RoutingStrategies.Bubble);
arg1.AddHandler(PointerMovedEvent, OnPointerMoved, RoutingStrategies.Bubble);
arg1.AddHandler(PointerReleasedEvent, OnPointerReleased, RoutingStrategies.Bubble);
}
else
{
arg1.RemoveHandler(PointerPressedEvent, OnPointerPressed);
arg1.RemoveHandler(PointerMovedEvent, OnPointerMoved);
arg1.RemoveHandler(PointerReleasedEvent, OnPointerReleased);
}
void OnPointerPressed(InputElement sender, PointerPressedEventArgs e)
{
if (sender.FindLogicalAncestorOfType<DialogControlBase>() is { } dialog)
{
e.Source = dialog;
}
}
void OnPointerMoved(InputElement sender, PointerEventArgs e)
{
if (sender.FindLogicalAncestorOfType<DialogControlBase>() is { } dialog)
{
e.Source = dialog;
}
}
void OnPointerReleased(InputElement sender, PointerReleasedEventArgs e)
{
if (sender.FindLogicalAncestorOfType<DialogControlBase>() is { } dialog)
{
e.Source = dialog;
}
}
}
#endregion
#region Close AttachedProperty
public static readonly AttachedProperty<bool> CanCloseProperty =
AvaloniaProperty.RegisterAttached<DialogControlBase, InputElement, bool>("CanClose");
public static void SetCanClose(InputElement obj, bool value) => obj.SetValue(CanCloseProperty, value);
public static bool GetCanClose(InputElement obj) => obj.GetValue(CanCloseProperty);
private static void OnCanCloseChanged(InputElement arg1, AvaloniaPropertyChangedEventArgs<bool> arg2)
{
if (arg2.NewValue.Value)
{
arg1.AddHandler(PointerPressedEvent, OnPointerPressed, RoutingStrategies.Bubble);
}
void OnPointerPressed(InputElement sender, PointerPressedEventArgs e)
{
if (sender.FindLogicalAncestorOfType<DialogControlBase>() is { } dialog)
{
dialog.Close();
}
}
}
#endregion
static DialogControlBase()
{
CanDragMoveProperty.Changed.AddClassHandler<InputElement, bool>(OnCanDragMoveChanged);
CanCloseProperty.Changed.AddClassHandler<InputElement, bool>(OnCanCloseChanged);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_titleArea?.RemoveHandler(PointerMovedEvent, OnTitlePointerMove);
_titleArea?.RemoveHandler(PointerPressedEvent, OnTitlePointerPressed);
_titleArea?.RemoveHandler(PointerReleasedEvent, OnTitlePointerRelease);
_titleArea = e.NameScope.Find<Panel>(PART_TitleArea);
_titleArea?.AddHandler(PointerMovedEvent, OnTitlePointerMove, RoutingStrategies.Bubble);
_titleArea?.AddHandler(PointerPressedEvent, OnTitlePointerPressed, RoutingStrategies.Bubble);
_titleArea?.AddHandler(PointerReleasedEvent, OnTitlePointerRelease, RoutingStrategies.Bubble);
if (CanDragMove)
{
_titleArea?.RemoveHandler(PointerMovedEvent, OnTitlePointerMove);
_titleArea?.RemoveHandler(PointerPressedEvent, OnTitlePointerPressed);
_titleArea?.RemoveHandler(PointerReleasedEvent, OnTitlePointerRelease);
_titleArea?.AddHandler(PointerMovedEvent, OnTitlePointerMove, RoutingStrategies.Bubble);
_titleArea?.AddHandler(PointerPressedEvent, OnTitlePointerPressed, RoutingStrategies.Bubble);
_titleArea?.AddHandler(PointerReleasedEvent, OnTitlePointerRelease, RoutingStrategies.Bubble);
}
else
{
if (_titleArea is not null) _titleArea.IsHitTestVisible = false;
}
Button.ClickEvent.RemoveHandler(OnCloseButtonClick, _closeButton);
_closeButton = e.NameScope.Find<Button>(PART_CloseButton);
Button.ClickEvent.AddHandler(OnCloseButtonClick, _closeButton);
}
private void OnTitlePointerPressed(object sender, PointerPressedEventArgs e)
private void OnTitlePointerPressed(InputElement sender, PointerPressedEventArgs e)
{
e.Source = this;
}
private void OnTitlePointerMove(object sender, PointerEventArgs e)
private void OnTitlePointerMove(InputElement sender, PointerEventArgs e)
{
e.Source = this;
}
private void OnTitlePointerRelease(object sender, PointerReleasedEventArgs e)
private void OnTitlePointerRelease(InputElement sender, PointerReleasedEventArgs e)
{
e.Source = this;
}
private void OnCloseButtonClick(object sender, RoutedEventArgs args) => Close();
internal void SetAsModal(bool modal)
{
PseudoClasses.Set(PC_Modal, modal);
}
}