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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System.Windows.Automation.Provider;
using System.Windows.Controls.Primitives;
namespace System.Windows.Automation.Peers
{
///
public class ToggleButtonAutomationPeer : ButtonBaseAutomationPeer, IToggleProvider
{
///
public ToggleButtonAutomationPeer(ToggleButton owner): base(owner)
{}
///
override protected string GetClassNameCore()
{
return "Button";
}
///
override protected AutomationControlType GetAutomationControlTypeCore()
{
return AutomationControlType.Button;
}
///
override public object GetPattern(PatternInterface patternInterface)
{
if (patternInterface == PatternInterface.Toggle)
{
return this;
}
else
{
return base.GetPattern(patternInterface);
}
}
void IToggleProvider.Toggle()
{
if(!IsEnabled())
throw new ElementNotEnabledException();
ToggleButton owner = (ToggleButton)Owner;
owner.OnToggle();
}
ToggleState IToggleProvider.ToggleState
{
get
{
ToggleButton owner = (ToggleButton)Owner;
return ConvertToToggleState(owner.IsChecked);
}
}
// BUG 1555137: Never inline, as we don't want to unnecessarily link the automation DLL
[System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
internal virtual void RaiseToggleStatePropertyChangedEvent(bool? oldValue, bool? newValue)
{
if (oldValue != newValue)
{
RaisePropertyChangedEvent(TogglePatternIdentifiers.ToggleStateProperty, ConvertToToggleState(oldValue), ConvertToToggleState(newValue));
}
}
private static ToggleState ConvertToToggleState(bool? value)
{
switch (value)
{
case (true): return ToggleState.On;
case (false): return ToggleState.Off;
default: return ToggleState.Indeterminate;
}
}
}
}
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