Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / AccessibleTech / longhorn / Automation / Win32Providers / MS / Internal / AutomationProxies / WindowsContainer.cs / 1 / WindowsContainer.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Windows Container Proxy // // History: // 07/20/2004 : [....] Created //--------------------------------------------------------------------------- using System; using System.Windows; using System.Collections; using System.ComponentModel; using System.Runtime.InteropServices; using System.Windows.Automation; using System.Windows.Automation.Provider; using System.Text; using MS.Win32; namespace MS.Internal.AutomationProxies { class WindowsContainer : ProxyHwnd, IRawElementProviderHwndOverride { // ----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors public WindowsContainer (IntPtr hwnd, ProxyHwnd parent, int item) : base( hwnd, parent, item) { string className = Misc.ProxyGetClassName(hwnd); if (!string.IsNullOrEmpty(className)) { if (className.Equals("#32770")) { _sType = ST.Get(STID.LocalizedControlTypeDialog); } else if (className.IndexOf("AfxControlBar", StringComparison.Ordinal) != -1) { _sType = ST.Get(STID.LocalizedControlTypeContainer); } } _fIsContent = IsTopLevelWindow(); _fIsKeyboardFocusable = true; } #endregion #region Proxy Create // Static Create method called by UIAutomation to create this proxy. // returns null if unsuccessful internal static IRawElementProviderSimple Create(IntPtr hwnd, int idChild, int idObject) { return Create(hwnd, idChild); } private static IRawElementProviderSimple Create(IntPtr hwnd, int idChild) { // Something is wrong if idChild is not zero if (idChild != 0) { System.Diagnostics.Debug.Assert(idChild == 0, "Invalid Child Id, idChild != 0"); throw new ArgumentOutOfRangeException("idChild", idChild, SR.Get(SRID.ShouldBeZero)); } return new WindowsContainer(hwnd, null, 0); } #endregion //------------------------------------------------------ // // Patterns Implementation // //----------------------------------------------------- #region ProxySimple Interface // Process all the Logical and Raw Element Properties internal override object GetElementProperty(AutomationProperty idProp) { if (idProp == AutomationElement.IsControlElementProperty) { return IsTopLevelWindow(); } return base.GetElementProperty(idProp); } #endregion //------------------------------------------------------ // // Interface IRawElementProviderHwndOverride // //------------------------------------------------------ #region IRawElementProviderHwndOverride Interface IRawElementProviderSimple IRawElementProviderHwndOverride.GetOverrideProviderForHwnd(IntPtr hwnd) { // return the appropriate placeholder for the given hwnd... // loop over all the tabs to find it. IntPtr hwndTab; int item; if (IsTabPage(hwnd, out hwndTab, out item)) { WindowsTab wTab = new WindowsTab(hwndTab, null, 0); return new WindowsTabChildOverrideProxy(hwnd, wTab.CreateTabItem(item), item); } return null; } #endregion IRawElementProviderHwndOverride Interface //----------------------------------------------------- // // Private Methods // //------------------------------------------------------ #region Private Methods private bool IsTopLevelWindow() { int style = WindowStyle; // WS_OVERLAPPED and WS_POPUP indicate a top level window. // WS_OVERLAPPED constant is 0, it does not make a good mask. But all // WS_OVERLAPPED windows MUST have a caption so use WS_CAPTION instead. return Misc.IsBitSet(style, NativeMethods.WS_CAPTION) || Misc.IsBitSet(style, NativeMethods.WS_POPUP); } private bool HasTabPageStyle(IntPtr hwnd) { int style = Misc.GetWindowStyle(hwnd); int exstyle = Misc.GetWindowExStyle(hwnd); return Misc.IsBitSet(style, NativeMethods.DS_CONTROL) && Misc.IsBitSet(style, NativeMethods.WS_CHILD) && Misc.IsBitSet(exstyle, NativeMethods.WS_EX_CONTROLPARENT); } private bool IsTabPage(IntPtr hwnd, out IntPtr hwndTab, out int item) { hwndTab = IntPtr.Zero; item = -1; if (!SafeNativeMethods.IsWindowVisible(hwnd)) { return false; } try { if (!HasTabPageStyle(hwnd)) { return false; } } catch (ElementNotAvailableException) { // if the received an ElementNotAvailableException this hwnd can not be a // tab page so return false. return false; } string dlgName = Misc.ProxyGetText(hwnd); // if the dialog does not have a title there is no way to match to a tab item. if (string.IsNullOrEmpty(dlgName)) { return false; } IntPtr hwndParent = Misc.GetParent(hwnd); if (hwndParent == IntPtr.Zero) { return false; } hwndTab = Misc.FindWindowEx(hwndParent, IntPtr.Zero, "SysTabControl32", null); // if the tab control is invisible then the tab control is not there. if (hwndTab == IntPtr.Zero || !SafeNativeMethods.IsWindowVisible(hwndTab)) { return false; } item = WindowsTabItem.GetCurrentSelectedItem(hwndTab); return dlgName.Equals(WindowsTabItem.GetName(hwndTab, item, true)); } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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