// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// Copyright (c) 2008 Novell, Inc. (http://www.novell.com)
//
// Contact:
// Moonlight Team (moonlight-list@lists.ximian.com)
//
using System.Windows;
using System.Windows.Controls;
using System.Collections.Generic;
using System.Linq;
namespace System.Windows.Automation.Peers{
public abstract class ItemsControlAutomationPeer : FrameworkElementAutomationPeer {
protected ItemsControlAutomationPeer (ItemsControl items) : base (items)
{
items.Items.ItemsChanged += (o, e) => {
RaiseAutomationEvent (AutomationEvents.StructureChanged);
};
}
protected virtual ItemAutomationPeer CreateItemAutomationPeer (object item)
{
throw new NotImplementedException ();
}
public override object GetPattern (PatternInterface pattern)
{
if (pattern == PatternInterface.Scroll) {
ScrollViewer patternImplementor = ScrollPatternImplementor;
if (patternImplementor != null) {
AutomationPeer peer
= FrameworkElementAutomationPeer.CreatePeerForElement (patternImplementor);
return peer.GetPattern (pattern);
}
return null;
}
return base.GetPattern (pattern);
}
protected override List<AutomationPeer> GetChildrenCore ()
{
ItemsControl itemsControl = (ItemsControl) Owner;
if (itemsControl.Items.Count == 0)
return null;
List<AutomationPeer> children = new List<AutomationPeer> ();
for (int index = 0; index < itemsControl.Items.Count; index++) {
UIElement item = GetItem (itemsControl, index);
if (item == null)
return null;
AutomationPeer peer = FrameworkElementAutomationPeer.CreatePeerForElement (item);
if (peer != null)
children.Add (peer);
}
return children;
}
internal virtual ScrollViewer ScrollPatternImplementor {
get { return null; }
}
private UIElement GetItem (ItemsControl itemsControl, int index)
{
var item = (UIElement) itemsControl.ItemContainerGenerator.ContainerFromIndex (index);
if (item == null)
item = itemsControl.Items [index] as UIElement;
return item;
}
}
}
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