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// Lluis Sanchez <lluis@xamarin.com>
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// Copyright (c) 2011 Xamarin Inc
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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public class ToggleButton: Button
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EventHandler toggledEvent;
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protected new class WidgetBackendHost: Button.WidgetBackendHost, IToggleButtonEventSink
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public void OnToggled ()
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((ToggleButton)Parent).OnToggled (EventArgs.Empty);
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static ToggleButton ()
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MapEvent (ToggleButtonEvent.Toggled, typeof(ToggleButton), "OnToggled");
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public ToggleButton ()
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public ToggleButton (string label): base (label)
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public ToggleButton (Image img, string label): base (img, label)
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public ToggleButton (Image img): base (img)
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protected override BackendHost CreateBackendHost ()
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return new WidgetBackendHost ();
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IToggleButtonBackend Backend {
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get { return (IToggleButtonBackend) BackendHost.Backend; }
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get { return Backend.Active; }
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set { Backend.Active = value; }
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protected void OnToggled (EventArgs a)
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if (toggledEvent != null)
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toggledEvent (this, a);
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public event EventHandler Toggled {
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BackendHost.OnBeforeEventAdd (ToggleButtonEvent.Toggled, toggledEvent);
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toggledEvent += value;
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toggledEvent -= value;
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BackendHost.OnAfterEventRemove (ToggleButtonEvent.Toggled, toggledEvent);