// 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.
 
 
#region Using declarations
 
#if RIBBON_IN_FRAMEWORK
using System.Windows.Controls.Ribbon;
 
#if RIBBON_IN_FRAMEWORK
namespace System.Windows.Automation.Peers
#else
namespace Microsoft.Windows.Automation.Peers
#endif
{
#else
    using Microsoft.Windows.Controls.Ribbon;
#endif
 
    #endregion
 
    /// <summary>
    ///   An automation peer class which automates RibbonMenuItem control.
    /// </summary>
    public class RibbonMenuItemAutomationPeer : ItemsControlAutomationPeer
    {
 
        #region Constructors
 
        /// <summary>
        ///   Initialize Automation Peer for RibbonMenuItem
        /// </summary>
        public RibbonMenuItemAutomationPeer(RibbonMenuItem owner)
            : base(owner)
        {
        }
 
        #endregion
 
        #region AutomationPeer overrides
 
        /// <summary>
        ///   Get KeyTip of the owner control.
        /// </summary>
        protected override string GetAccessKeyCore()
        {
            string accessKey = ((RibbonMenuItem)Owner).KeyTip;
            if (string.IsNullOrEmpty(accessKey))
            {
                accessKey = base.GetAccessKeyCore();
            }
            return accessKey;
        }
 
        /// <summary>
        ///   Return class name for automation clients to display
        /// </summary> 
        protected override string GetClassNameCore()
        {
            return Owner.GetType().Name;
        }
 
        /// <summary>
        ///   Returns help text 
        /// </summary>
        protected override string GetHelpTextCore()
        {
            string helpText = base.GetHelpTextCore();
            if (String.IsNullOrEmpty(helpText))
            {
                RibbonToolTip toolTip = ((RibbonMenuItem)Owner).ToolTip as RibbonToolTip;
                if (toolTip != null)
                {
                    helpText = toolTip.Description;
                }
            }
 
            return helpText;
        }
 
        protected override AutomationControlType GetAutomationControlTypeCore()
        {
            return AutomationControlType.MenuItem;
        }
 
        #endregion
 
        protected override ItemAutomationPeer CreateItemAutomationPeer(object item)
        {
            return new RibbonMenuItemDataAutomationPeer(item, this);
        }
 
        // Never inline, as we don't want to unnecessarily link the 
        // automation DLL via the ISelectionProvider interface type initialization.
        [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
        internal void RaiseExpandCollapseAutomationEvent(bool oldValue, bool newValue)
        {
            AutomationPeer dataPeer = EventsSource;
 
            if (dataPeer != null)
            {
                dataPeer.RaisePropertyChangedEvent(
                    ExpandCollapsePatternIdentifiers.ExpandCollapseStateProperty,
                    oldValue ? ExpandCollapseState.Expanded : ExpandCollapseState.Collapsed,
                    newValue ? ExpandCollapseState.Expanded : ExpandCollapseState.Collapsed);
            }
        }
 
        [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)]
        internal void RaiseToggleStatePropertyChangedEvent(bool oldValue, bool newValue)
        {
            AutomationPeer dataPeer = EventsSource;
 
            if (dataPeer != null)
            {
                dataPeer.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;
            }
        }
    }
}