/// <summary>
/// Sets focus to the next item in the ContextMenu.
/// </summary>
/// <param name="down">True to move the focus down; false to move it up.</param>
private void FocusNextItem(bool down)
{
int count = Items.Count;
int startingIndex = down ? -1 : count;
MenuItem focusedMenuItem = FocusManager.GetFocusedElement() as MenuItem;
if (null != focusedMenuItem && (this == focusedMenuItem.ParentMenuBase))
{
startingIndex = ItemContainerGenerator.IndexFromContainer(focusedMenuItem);
}
int index = startingIndex;
do
{
index = (index + count + (down ? 1 : -1)) % count;
MenuItem container = ItemContainerGenerator.ContainerFromIndex(index) as MenuItem;
if (null != container)
{
if (container.IsEnabled && container.Focus())
{
break;
}
}
}while (index != startingIndex);
}
private bool OnEnterMenuMode(object sender, EventArgs e)
{
// Don't enter menu mode if someone has capture
if (Mouse.Captured != null)
{
return(false);
}
// Need to check that ALT/F10 happened in our source.
PresentationSource source = sender as PresentationSource;
PresentationSource mySource = null;
mySource = PresentationSource.CriticalFromVisual(this);
if (source == mySource)
{
// Give focus to the first possible element in the ItemsControl
for (int i = 0; i < Items.Count; i++)
{
MenuItem menuItem = ItemContainerGenerator.ContainerFromIndex(i) as MenuItem;
if (menuItem != null && !(Items[i] is Separator))
{
if (menuItem.Focus())
{
return(true);
}
}
}
}
return(false);
}
private bool OnEnterMenuMode(object sender, EventArgs e)
{
if (Mouse.Captured != null)
{
return(false);
}
PresentationSource presentationSource = sender as PresentationSource;
PresentationSource presentationSource2 = PresentationSource.CriticalFromVisual(this);
if (presentationSource == presentationSource2)
{
for (int i = 0; i < base.Items.Count; i++)
{
MenuItem menuItem = base.ItemContainerGenerator.ContainerFromIndex(i) as MenuItem;
if (menuItem != null && !(base.Items[i] is Separator) && menuItem.Focus())
{
return(true);
}
}
}
return(false);
}
static void EmulateClick(MenuItem item, WPFContextMenu.Clean clean)
{
IInvokeProvider invoker = new MenuItemAutomationPeer(item);
item.Focus();
invoker.Invoke();
InvokeUtility.DoEvents();
clean();
}
