50 lines
1.3 KiB
C#
50 lines
1.3 KiB
C#
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Input;
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namespace MediaBrowser.UI.Controls
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{
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/// <summary>
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/// Extends RadioButton to provide focus on mouse over, and invoke on enter press
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/// </summary>
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public class ExtendedRadioButton : RadioButton
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{
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private Point? _lastMouseMovePoint;
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/// <summary>
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/// Handles OnMouseMove to auto-select the item that's being moused over
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/// </summary>
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protected override void OnMouseMove(MouseEventArgs e)
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{
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base.OnMouseMove(e);
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var window = this.GetWindow();
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// If the cursor is currently hidden, don't bother reacting to it
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if (Cursor == Cursors.None || window.Cursor == Cursors.None)
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{
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return;
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}
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// Store the last position for comparison purposes
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// Even if the mouse is not moving this event will fire as elements are showing and hiding
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var pos = e.GetPosition(window);
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if (!_lastMouseMovePoint.HasValue)
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{
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_lastMouseMovePoint = pos;
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return;
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}
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if (pos == _lastMouseMovePoint)
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{
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return;
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}
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_lastMouseMovePoint = pos;
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Focus();
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}
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}
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}
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