// 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) 2009 Novell, Inc. (http://www.novell.com)
//
// Contact:
// Moonlight Team (moonlight-list@lists.ximian.com)
//
using System.Windows;
using System.Windows.Automation.Provider;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
using System.Windows.Media;
using System.Linq;
using System.Collections.Generic;
namespace System.Windows.Automation.Peers{
public abstract class SelectorAutomationPeer : ItemsControlAutomationPeer, ISelectionProvider {
protected SelectorAutomationPeer (Selector owner) : base (owner)
{
owner.SelectionChanged += (o, e) => {
// Selection Pattern Automation Events
// - CanSelectMultiple and IsSelectionRequired not raised because value doesn't change/
// - Selection.SelectionProperty:
RaisePropertyChangedEvent (SelectionPatternIdentifiers.SelectionProperty,
GetProviderArrayFromPeer (oldSelectedPeer),
GetProviderArrayFromPeer (GetSelectedAutomationPeer ()));
// SelectionItem Pattern Automation Events
// (Only raising SelectionItemPatternOnElementSelected because Selector
// supports one selected item)
if (oldSelectedPeer != null) // Old Selected Item
oldSelectedPeer.RaisePropertyChangedEvent (SelectionItemPatternIdentifiers.IsSelectedProperty,
true,
false);
oldSelectedPeer = GetSelectedAutomationPeer ();
if (oldSelectedPeer != null) { // New Selected Item
oldSelectedPeer.RaisePropertyChangedEvent (SelectionItemPatternIdentifiers.IsSelectedProperty,
false,
true);
oldSelectedPeer.RaiseAutomationEvent (AutomationEvents.SelectionItemPatternOnElementSelected);
}
};
oldSelectedPeer = GetSelectedAutomationPeer ();
}
public override object GetPattern (PatternInterface pattern)
{
if (pattern == PatternInterface.Selection)
return this;
return base.GetPattern (pattern);
}
protected override AutomationControlType GetAutomationControlTypeCore ()
{
return base.GetAutomationControlTypeCore ();
}
protected override ItemAutomationPeer CreateItemAutomationPeer (object item)
{
return base.CreateItemAutomationPeer (item);
}
#region ISelectionProvider realization
IRawElementProviderSimple[] ISelectionProvider.GetSelection ()
{
return GetProviderArrayFromPeer (GetSelectedAutomationPeer ());
}
bool ISelectionProvider.CanSelectMultiple {
get { return false; }
}
bool ISelectionProvider.IsSelectionRequired {
get { return false; }
}
#endregion
private AutomationPeer GetSelectedAutomationPeer ()
{
Selector selector = (Selector) Owner;
if (selector.SelectedIndex == -1)
return null;
return FrameworkElementAutomationPeer.CreatePeerForElement ((UIElement) selector.ItemContainerGenerator.ContainerFromIndex (selector.SelectedIndex));
}
private IRawElementProviderSimple [] GetProviderArrayFromPeer (AutomationPeer peer)
{
if (peer != null)
return new IRawElementProviderSimple [] { ProviderFromPeer (peer) };
return null;
}
private AutomationPeer oldSelectedPeer;
#region Internal properties
internal override ScrollViewer ScrollPatternImplementor {
get { return ((Selector) Owner).TemplateScrollViewer; }
}
#endregion
}
}
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