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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 System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Media;
using Xceed.Wpf.AvalonDock.Layout;
using System.Windows.Threading;
namespace Xceed.Wpf.AvalonDock.Controls
{
internal abstract class DropTarget<T> : DropTargetBase, IDropTarget where T : FrameworkElement
{
#region Members
private Rect[] _detectionRect;
private T _targetElement;
private DropTargetType _type;
#endregion
#region Constructors
protected DropTarget( T targetElement, Rect detectionRect, DropTargetType type )
{
_targetElement = targetElement;
_detectionRect = new Rect[] { detectionRect };
_type = type;
}
protected DropTarget( T targetElement, IEnumerable<Rect> detectionRects, DropTargetType type )
{
_targetElement = targetElement;
_detectionRect = detectionRects.ToArray();
_type = type;
}
#endregion
#region Properties
public Rect[] DetectionRects
{
get
{
return _detectionRect;
}
}
public T TargetElement
{
get
{
return _targetElement;
}
}
public DropTargetType Type
{
get
{
return _type;
}
}
#endregion
#region Overrides
protected virtual void Drop( LayoutAnchorableFloatingWindow floatingWindow )
{
}
protected virtual void Drop( LayoutDocumentFloatingWindow floatingWindow )
{
}
#endregion
#region Public Methods
public void Drop( LayoutFloatingWindow floatingWindow )
{
var root = floatingWindow.Root;
var currentActiveContent = floatingWindow.Root.ActiveContent;
var fwAsAnchorable = floatingWindow as LayoutAnchorableFloatingWindow;
if( fwAsAnchorable != null )
{
this.Drop( fwAsAnchorable );
}
else
{
var fwAsDocument = floatingWindow as LayoutDocumentFloatingWindow;
this.Drop( fwAsDocument );
}
Dispatcher.BeginInvoke( new Action( () =>
{
currentActiveContent.IsSelected = false;
currentActiveContent.IsActive = false;
currentActiveContent.IsActive = true;
} ), DispatcherPriority.Background );
}
public virtual bool HitTest( Point dragPoint )
{
return _detectionRect.Any( dr => dr.Contains( dragPoint ) );
}
public abstract Geometry GetPreviewPath( OverlayWindow overlayWindow, LayoutFloatingWindow floatingWindow );
public void DragEnter()
{
SetIsDraggingOver( TargetElement, true );
}
public void DragLeave()
{
SetIsDraggingOver( TargetElement, false );
}
#endregion
}
}
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