//Copyright (c) 2007-2012, Adolfo Marinucci
//All rights reserved.
//Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
//following conditions are met:
//* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
//* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
//disclaimer in the documentation and/or other materials provided with the distribution.
//* Neither the name of Adolfo Marinucci nor the names of its contributors may be used to endorse or promote products
//derived from this software without specific prior written permission.
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
//INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
//IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
//EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
//STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
//EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Controls.Primitives;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Diagnostics;
namespace AvalonDock.Controls
{
public class DropDownButton : ToggleButton
{
public DropDownButton()
{
this.Unloaded += new RoutedEventHandler(DropDownButton_Unloaded);
}
#region DropDownContextMenu
/// <summary>
/// DropDownContextMenu Dependency Property
/// </summary>
public static readonly DependencyProperty DropDownContextMenuProperty =
DependencyProperty.Register("DropDownContextMenu", typeof(ContextMenu), typeof(DropDownButton),
new FrameworkPropertyMetadata((ContextMenu)null,
new PropertyChangedCallback(OnDropDownContextMenuChanged)));
/// <summary>
/// Gets or sets the DropDownContextMenu property. This dependency property
/// indicates drop down menu to show up when user click on an anchorable menu pin.
/// </summary>
public ContextMenu DropDownContextMenu
{
get { return (ContextMenu)GetValue(DropDownContextMenuProperty); }
set { SetValue(DropDownContextMenuProperty, value); }
}
/// <summary>
/// Handles changes to the DropDownContextMenu property.
/// </summary>
private static void OnDropDownContextMenuChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
((DropDownButton)d).OnDropDownContextMenuChanged(e);
}
/// <summary>
/// Provides derived classes an opportunity to handle changes to the DropDownContextMenu property.
/// </summary>
protected virtual void OnDropDownContextMenuChanged(DependencyPropertyChangedEventArgs e)
{
var oldContextMenu = e.OldValue as ContextMenu;
if (oldContextMenu != null && IsChecked.GetValueOrDefault())
oldContextMenu.Closed -= new RoutedEventHandler(OnContextMenuClosed);
}
#endregion
#region DropDownContextMenuDataContext
/// <summary>
/// DropDownContextMenuDataContext Dependency Property
/// </summary>
public static readonly DependencyProperty DropDownContextMenuDataContextProperty =
DependencyProperty.Register("DropDownContextMenuDataContext", typeof(object), typeof(DropDownButton),
new FrameworkPropertyMetadata((object)null));
/// <summary>
/// Gets or sets the DropDownContextMenuDataContext property. This dependency property
/// indicates data context to set for drop down context menu.
/// </summary>
public object DropDownContextMenuDataContext
{
get { return (object)GetValue(DropDownContextMenuDataContextProperty); }
set { SetValue(DropDownContextMenuDataContextProperty, value); }
}
#endregion
protected override void OnClick()
{
if (DropDownContextMenu != null)
{
//IsChecked = true;
DropDownContextMenu.PlacementTarget = this;
DropDownContextMenu.Placement = PlacementMode.Bottom;
DropDownContextMenu.DataContext = DropDownContextMenuDataContext;
DropDownContextMenu.Closed += new RoutedEventHandler(OnContextMenuClosed);
DropDownContextMenu.IsOpen = true;
}
base.OnClick();
}
void OnContextMenuClosed(object sender, RoutedEventArgs e)
{
//Debug.Assert(IsChecked.GetValueOrDefault());
var ctxMenu = sender as ContextMenu;
ctxMenu.Closed -= new RoutedEventHandler(OnContextMenuClosed);
IsChecked = false;
}
void DropDownButton_Unloaded(object sender, RoutedEventArgs e)
{
DropDownContextMenu = null;
}
}
}