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Skip mouse events of unloaded controls #454

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Skip mouse events of unloaded controls #454

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14 changes: 13 additions & 1 deletion source/Components/AvalonDock/Controls/LayoutDocumentTabItem.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -108,6 +108,8 @@ protected virtual void OnModelChanged(DependencyPropertyChangedEventArgs e)
/// <inheritdoc />
protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
{
if (!IsLoaded) return;

base.OnMouseLeftButtonDown(e);
CaptureMouse();
_allowDrag = false;
Expand All @@ -121,6 +123,8 @@ protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
/// <inheritdoc />
protected override void OnMouseMove(MouseEventArgs e)
{
if (!IsLoaded) return;

base.OnMouseMove(e);
_isMouseDown = Mouse.LeftButton == MouseButtonState.Pressed && _isMouseDown;
if (_isMouseDown)
Expand Down Expand Up @@ -160,6 +164,8 @@ protected override void OnMouseMove(MouseEventArgs e)
/// <inheritdoc />
protected override void OnMouseLeftButtonUp(MouseButtonEventArgs e)
{
if (!IsLoaded) return;

_isMouseDown = false;
_allowDrag = false;
if (IsMouseCaptured) ReleaseMouseCapture();
Expand All @@ -169,25 +175,31 @@ protected override void OnMouseLeftButtonUp(MouseButtonEventArgs e)
/// <inheritdoc />
protected override void OnMouseLeave(MouseEventArgs e)
{
if (!IsLoaded) return;

base.OnMouseLeave(e);
_isMouseDown = false;
}

/// <inheritdoc />
protected override void OnMouseEnter(MouseEventArgs e)
{
if (!IsLoaded) return;

base.OnMouseEnter(e);
_isMouseDown = false;
}

/// <inheritdoc />
protected override void OnMouseDown(MouseButtonEventArgs e)
{
if (!IsLoaded) return;

if (LayoutItem != null && e.ChangedButton == MouseButton.Middle && LayoutItem.CloseCommand.CanExecute(null))
{
LayoutItem.CloseCommand.Execute(null);
}

base.OnMouseDown(e);
}

Expand Down