//
// System.Windows.Automation.Peers.SliderAutomationPeer
//
// Contact:
//   Moonlight List (moonlight-list@lists.ximian.com)
//
// Copyright (C) 2009 Novell, Inc (http://www.novell.com)
//
// 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.
//

using System;
using System.Linq;
using System.Windows.Controls;
using System.Collections.Generic;

namespace System.Windows.Automation.Peers {

	public class SliderAutomationPeer : RangeBaseAutomationPeer {

		public SliderAutomationPeer (Slider owner)
			: base (owner)
		{
		}

		protected override AutomationControlType GetAutomationControlTypeCore ()
		{
			return AutomationControlType.Slider;
		}

		protected override string GetClassNameCore ()
		{
			return "Slider";
		}

		protected override Point GetClickablePointCore ()
		{
			return new Point (Double.NaN, Double.NaN);
		}

		internal override List<AutomationPeer> ChildrenCore {
			get {
				CacheChildren ();
				return children;
			}
		}

		private void CacheChildren ()
		{
			if (children == null || children.Count == 0)
				return;

			List<AutomationPeer> baseChildren = base.ChildrenCore;
			if (baseChildren == null)
				return;

			// Slider does not support SmallChange, so it only
			// needs:
			//    [Large Decrease] [Thumb] [Large Increase]
			children = baseChildren.Take (3).ToList ();
		}

		private List<AutomationPeer> children;
	}
}

