WindowsToolbarItemAsMenuItem.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / AccessibleTech / longhorn / Automation / Win32Providers / MS / Internal / AutomationProxies / WindowsToolbarItemAsMenuItem.cs / 1 / WindowsToolbarItemAsMenuItem.cs
                        

                        
                            //---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// 
// Description: Some applications implement menus with toolbars.  This proxy 
//              will used the IAccessible to expose these toolbar items as
//              menu items.  This proxy is derived from ToolbarItem since 
//              the underlying control really is a toolbar and ToolbarItem
//              knows how to communicate with a toolbars to get information for
//              toolbar items already.
// 
// History:
//  01/31/2005 : [....] Created 
//--------------------------------------------------------------------------- 

using System; 
using System.Windows.Automation;
using MS.Win32;

namespace MS.Internal.AutomationProxies 
{
    class ToolbarItemAsMenuItem : ToolbarItem 
    { 
        // -----------------------------------------------------
        // 
        // Constructors
        //
        // -----------------------------------------------------
 
        #region Constructors
 
        internal ToolbarItemAsMenuItem(IntPtr hwnd, ProxyFragment parent, int item, int idCommand, Accessible acc) 
            : base(hwnd, parent, item, idCommand)
        { 
            _acc = acc;

            // Set the control type based on the IAccessible role.
            AccessibleRole role = acc.Role; 
            if (role == AccessibleRole.MenuItem)
            { 
                _cControlType = ControlType.MenuItem; 
            }
            else 
            {
                System.Diagnostics.Debug.Assert(false, "Unexpected role " + role);

            } 

            // MenuItems are by default KeyboardFocusable. 
            _fIsKeyboardFocusable = true; 
        }
 
        #endregion

        // ------------------------------------------------------
        // 
        // Patterns Implementation
        // 
        // ----------------------------------------------------- 

        #region ProxySimple Interface 

        // Returns a pattern interface if supported.
        internal override object GetPatternProvider (AutomationPattern iid)
        { 
            // Treate these toolbar items as menuitems and only support Invoke or Expand/Collapse patterns.
            // Invoke Pattern needs to be supported when the item has no children.  When the item does have 
            // children it needs to support ExpandCollapse Pattern. 

            // Check if button is a separator 
            if (IsSeparator())
            {
                return null;
            } 

            // Check if button is disabled 
            if (Misc.ProxySendMessageInt(_hwnd, NativeMethods.TB_ISBUTTONENABLED, new IntPtr(_idCommand), IntPtr.Zero) == 0) 
            {
                return null; 
            }

            // Check if button is hidden
            if (Misc.ProxySendMessageInt(_hwnd, NativeMethods.TB_ISBUTTONHIDDEN, new IntPtr(_idCommand), IntPtr.Zero) != 0) 
            {
                return null; 
            } 

            // 
            if (iid == InvokePattern.Pattern)
            {
                // button is enabled and not hidden and not a separator
                return this; 
            }
 
            // 

            return null; 
        }

        // Process all the Element Properties
        internal override object GetElementProperty(AutomationProperty idProp) 
        {
            if (idProp == AutomationElement.HasKeyboardFocusProperty) 
            { 
                return IsFocused();
            } 

            return base.GetElementProperty(idProp);
        }
 
        #endregion
 
        // ------------------------------------------------------ 
        //
        // Private Fields 
        //
        // ------------------------------------------------------

        #region Private Fields 

        Accessible _acc; 
 
        #endregion
 
    }
}


// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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