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/*************************************************************************************
Extended WPF Toolkit
Copyright (C) 2007-2013 Xceed Software Inc.
This program is provided to you under the terms of the Microsoft Public
License (Ms-PL) as published at http://wpftoolkit.codeplex.com/license
For more features, controls, and fast professional support,
pick up the Plus Edition at http://xceed.com/wpf_toolkit
Stay informed: follow @datagrid on Twitter or Like http://facebook.com/datagrids
***********************************************************************************/
using System;
using Xceed.Wpf.AvalonDock.Layout;
using System.Windows;
using System.Windows.Controls.Primitives;
using Microsoft.Windows.Shell;
namespace Xceed.Wpf.AvalonDock.Controls
{
public class LayoutDocumentFloatingWindowControl : LayoutFloatingWindowControl
{
#region Members
private LayoutDocumentFloatingWindow _model;
#endregion
#region Constructors
static LayoutDocumentFloatingWindowControl()
{
DefaultStyleKeyProperty.OverrideMetadata( typeof( LayoutDocumentFloatingWindowControl ), new FrameworkPropertyMetadata( typeof( LayoutDocumentFloatingWindowControl ) ) );
}
internal LayoutDocumentFloatingWindowControl( LayoutDocumentFloatingWindow model )
: base( model )
{
_model = model;
UpdateThemeResources();
}
#endregion
#region Properties
public LayoutItem RootDocumentLayoutItem
{
get
{
return _model.Root.Manager.GetLayoutItemFromModel( _model.RootDocument );
}
}
#endregion
#region Overrides
public override ILayoutElement Model
{
get
{
return _model;
}
}
protected override void OnInitialized( EventArgs e )
{
base.OnInitialized( e );
if( _model.RootDocument == null )
{
InternalClose();
}
else
{
var manager = _model.Root.Manager;
Content = manager.CreateUIElementForModel( _model.RootDocument );
_model.RootDocumentChanged += new EventHandler( _model_RootDocumentChanged );
}
}
protected override IntPtr FilterMessage( IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled )
{
switch( msg )
{
case Win32Helper.WM_NCLBUTTONDOWN: //Left button down on title -> start dragging over docking manager
if( wParam.ToInt32() == Win32Helper.HT_CAPTION )
{
if( _model.RootDocument != null )
_model.RootDocument.IsActive = true;
}
break;
case Win32Helper.WM_NCRBUTTONUP:
if( wParam.ToInt32() == Win32Helper.HT_CAPTION )
{
if( OpenContextMenu() )
handled = true;
if( _model.Root.Manager.ShowSystemMenu )
WindowChrome.GetWindowChrome( this ).ShowSystemMenu = !handled;
else
WindowChrome.GetWindowChrome( this ).ShowSystemMenu = false;
}
break;
}
return base.FilterMessage( hwnd, msg, wParam, lParam, ref handled );
}
protected override void OnClosed( EventArgs e )
{
var root = Model.Root;
root.Manager.RemoveFloatingWindow( this );
root.CollectGarbage();
base.OnClosed( e );
if( !CloseInitiatedByUser )
{
root.FloatingWindows.Remove( _model );
}
_model.RootDocumentChanged -= new EventHandler( _model_RootDocumentChanged );
}
#endregion
#region Private Methods
private void _model_RootDocumentChanged( object sender, EventArgs e )
{
if( _model.RootDocument == null )
{
InternalClose();
}
}
private bool OpenContextMenu()
{
var ctxMenu = _model.Root.Manager.DocumentContextMenu;
if( ctxMenu != null && RootDocumentLayoutItem != null )
{
ctxMenu.PlacementTarget = null;
ctxMenu.Placement = PlacementMode.MousePoint;
ctxMenu.DataContext = RootDocumentLayoutItem;
ctxMenu.IsOpen = true;
return true;
}
return false;
}
#endregion
}
}
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