static DropDownButton()
{
var type = typeof(DropDownButton);
DefaultStyleKeyProperty.OverrideMetadata(type, new FrameworkPropertyMetadata(type));
System.Windows.Controls.ToolTipService.IsEnabledProperty.OverrideMetadata(typeof(DropDownButton), new FrameworkPropertyMetadata(null, CoerceToolTipIsEnabled));
KeyboardNavigation.ControlTabNavigationProperty.OverrideMetadata(type, new FrameworkPropertyMetadata(KeyboardNavigationMode.Once));
KeyboardNavigation.DirectionalNavigationProperty.OverrideMetadata(type, new FrameworkPropertyMetadata(KeyboardNavigationMode.Cycle));
ToolTipService.Attach(type);
PopupService.Attach(type);
ContextMenuService.Attach(type);
}
/// <summary>
/// Invoked when an unhandled System.Windows.UIElement.PreviewMouseLeftButtonDown�routed
/// event reaches an element in its route that is derived from this class.
/// Implement this method to add class handling for this event.
/// </summary>
/// <param name="e">The System.Windows.Input.MouseButtonEventArgs that contains the event data.
/// The event data reports that the left mouse button was pressed.</param>
protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
{
if ((this.State == RibbonGroupBoxState.Collapsed || this.State == RibbonGroupBoxState.QuickAccess) &&
popup != null)
{
e.Handled = true;
if (!this.IsDropDownOpen)
{
this.IsDropDownOpen = true;
}
else
{
PopupService.RaiseDismissPopupEventAsync(this, DismissPopupMode.MouseNotOver);
}
}
}
/// <summary>
/// Handles dismiss popup event
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public static void OnDismissPopup(object sender, DismissPopupEventArgs e)
{
IDropDownControl control = sender as IDropDownControl;
if (control == null)
{
return;
}
if (e.DismissMode == DismissPopupMode.Always)
{
if (Mouse.Captured == control)
{
Mouse.Capture(null);
}
// Debug.WriteLine("DropDown Closed");
control.IsDropDownOpen = false;
}
else
{
if ((control.IsDropDownOpen) && (!PopupService.IsMousePhysicallyOver(control.DropDownPopup.Child)))
{
if (Mouse.Captured == control)
{
Mouse.Capture(null);
}
// Debug.WriteLine("DropDown Closed");
control.IsDropDownOpen = false;
}
else
{
if ((control.IsDropDownOpen) && (Mouse.Captured != control))
{
Mouse.Capture(sender as IInputElement, CaptureMode.SubTree);
}
if (control.IsDropDownOpen)
{
e.Handled = true;
}
}
}
}
/// <summary>
/// Called when the left mouse button is released.
/// </summary>
/// <param name="e">The event data for the <see cref="E:System.Windows.UIElement.MouseLeftButtonUp"/> event.</param>
protected override void OnMouseLeftButtonUp(MouseButtonEventArgs e)
{
if (e.ClickCount == 1)
{
if (IsSplited)
{
Border buttonBorder = GetTemplateChild("PART_ButtonBorder") as Border;
if ((buttonBorder != null) && (PopupService.IsMousePhysicallyOver(buttonBorder)))
{
/*if (Command != null)
* {
* RoutedCommand command = Command as RoutedCommand;
* if (command != null) command.Execute(CommandParameter, CommandTarget);
* else Command.Execute(CommandParameter);
* }*/
OnClick();
}
}
}
base.OnMouseLeftButtonUp(e);
}
/// <summary>
/// Invoked when an unhandled System.Windows.UIElement.PreviewMouseLeftButtonDown routed event
/// reaches an element in its route that is derived from this class. Implement this method to add
/// class handling for this event.
/// </summary>
/// <param name="e">The System.Windows.Input.MouseButtonEventArgs that contains the event data.
/// The event data reports that the left mouse button was pressed.</param>
protected override void OnPreviewMouseLeftButtonDown(MouseButtonEventArgs e)
{
if (!buttonBorder.IsMouseOver)
{
return;
}
if (!IsDropDownOpen)
{
if (isFirstTime)
{
DropDownPopup.Opacity = 0;
}
if (!isFirstTime)
{
IsDropDownOpen = true;
}
}
else
{
PopupService.RaiseDismissPopupEventAsync(this, DismissPopupMode.MouseNotOver);
IsDropDownOpen = false;
}
e.Handled = true;
if (isFirstTime)
{
isFirstTime = false;
//IsDropDownOpen = false;
Dispatcher.Invoke(DispatcherPriority.Send, (ThreadStart)(() =>
{
IsDropDownOpen = true;
DropDownPopup.Opacity = 1;
}));
}
}
private void OnListBoxSelectedChanged(object sender, SelectionChangedEventArgs e)
{
if (isSelectionChanged)
{
return;
}
isSelectionChanged = true;
if (e.AddedItems != null && e.AddedItems.Count > 0)
{
// Remove selection from others
noColorButton.IsChecked = false;
automaticButton.IsChecked = false;
for (int i = 0; i < listBoxes.Count; i++)
{
if (listBoxes[i] != sender)
{
listBoxes[i].SelectedItem = null;
}
}
SelectedColor = (Color)e.AddedItems[0];
PopupService.RaiseDismissPopupEventAsync(this, DismissPopupMode.Always);
}
isSelectionChanged = false;
}