/// <summary>Responds to a change to the <see cref="P:System.Windows.UIElement.IsKeyboardFocusWithin" /> property. </summary>
/// <param name="e">The event data for the <see cref="E:System.Windows.UIElement.IsKeyboardFocusWithinChanged" /> event.</param>
// Token: 0x06005E77 RID: 24183 RVA: 0x001A7898 File Offset: 0x001A5A98
protected override void OnIsKeyboardFocusWithinChanged(DependencyPropertyChangedEventArgs e)
{
base.OnIsKeyboardFocusWithinChanged(e);
if (base.IsKeyboardFocusWithin)
{
if (!this.IsMenuMode)
{
this.IsMenuMode = true;
this.OpenOnMouseEnter = false;
}
if (KeyboardNavigation.IsKeyboardMostRecentInputDevice())
{
KeyboardNavigation.EnableKeyboardCues(this, true);
}
}
else
{
KeyboardNavigation.EnableKeyboardCues(this, false);
if (this.IsMenuMode)
{
if (this.HasCapture)
{
this.IsMenuMode = false;
}
}
else if (this.CurrentSelection != null)
{
this.CurrentSelection = null;
}
}
this.InvokeMenuOpenedClosedAutomationEvent(base.IsKeyboardFocusWithin);
}
/// <summary>
/// Called when the focus is no longer on or within this element.
/// </summary>
/// <param name="e"></param>
protected override void OnIsKeyboardFocusWithinChanged(DependencyPropertyChangedEventArgs e)
{
base.OnIsKeyboardFocusWithinChanged(e);
if (IsKeyboardFocusWithin)
{
// When focus enters the menu, we should enter menu mode.
if (!IsMenuMode)
{
IsMenuMode = true;
OpenOnMouseEnter = false;
}
if (KeyboardNavigation.IsKeyboardMostRecentInputDevice())
{
// Turn on keyboard cues b/c we took focus with the keyboard
KeyboardNavigation.EnableKeyboardCues(this, true);
}
}
else
{
// Turn off keyboard cues
KeyboardNavigation.EnableKeyboardCues(this, false);
if (IsMenuMode)
{
// When showing a ContextMenu of a MenuItem, the ContextMenu will take focus
// out of this menu's subtree. The ContextMenu takes capture before taking
// focus, so if we are in MenuMode but don't have capture then we are waiting
// for the context menu to close. Thus, we should only exit menu mode when
// we have capture.
if (HasCapture)
{
IsMenuMode = false;
}
}
else
{
// Okay, we weren't in menu mode but we could have had a selection (mouse hovering), so clear that
if (CurrentSelection != null)
{
CurrentSelection = null;
}
}
}
InvokeMenuOpenedClosedAutomationEvent(IsKeyboardFocusWithin);
}