Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Core / CSharp / System / Windows / Input / TextServicesManager.cs / 2 / TextServicesManager.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Provides input to ImeProcessed promotion -- feeds keystrokes // to IMEs. // // History: // 07/23/2003 : benwest - Created // //--------------------------------------------------------------------------- using System.Windows.Threading; using MS.Internal; using MS.Win32; using System; using System.Security; using System.Security.Permissions; namespace System.Windows.Input { internal class TextServicesManager : DispatcherObject { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors ////// Critical - Calls a critical method - PreProcessInput /// TreatAsSafe - Ok for us to register an event handler. Handler itself is critical. /// [SecurityCritical, SecurityTreatAsSafe] internal TextServicesManager(InputManager inputManager) { _inputManager = inputManager; _inputManager.PreProcessInput += new PreProcessInputEventHandler(PreProcessInput); _inputManager.PostProcessInput += new ProcessInputEventHandler(PostProcessInput); } #endregion Constructors //------------------------------------------------------ // // Public Methods // //----------------------------------------------------- //------------------------------------------------------ // // Public Properties // //------------------------------------------------------ //----------------------------------------------------- // // Public Events // //------------------------------------------------------ //----------------------------------------------------- // // Protected Methods // //----------------------------------------------------- //----------------------------------------------------- // // Internal Methods // //------------------------------------------------------ // Track the focus of KeyboardDevice. KeyboardDevice.ChangeFocus() this. internal void Focus(DependencyObject focus) { if (focus == null) { // Don't grab keyboard events from Text Services Framework without keyboard focus. this.Dispatcher.IsTSFMessagePumpEnabled = false; return; } // Grab keyboard events from Text Services Framework with keyboard focus. this.Dispatcher.IsTSFMessagePumpEnabled = true; if ((bool)focus.GetValue(InputMethod.IsInputMethodSuspendedProperty)) { // The focus is on the element that suspending IME's input (such as menu). // The document focus should remain. return; } InputMethod.Current.EnableOrDisableInputMethod((bool)focus.GetValue(InputMethod.IsInputMethodEnabledProperty)); } //----------------------------------------------------- // // Internal Properties // //------------------------------------------------------ //------------------------------------------------------ // // Internal Events // //----------------------------------------------------- //------------------------------------------------------ // // Private Methods // //----------------------------------------------------- #region Private Methods // Marks interesting KeyDown events as ImeInput. ////// Critical - directly pushes keys into the input stack /// [SecurityCritical] private void PreProcessInput(object sender, PreProcessInputEventArgs e) { TextServicesContext context; KeyEventArgs keyArgs; if (!TextServicesLoader.ServicesInstalled) return; if(e.StagingItem.Input.RoutedEvent != Keyboard.PreviewKeyDownEvent && e.StagingItem.Input.RoutedEvent != Keyboard.PreviewKeyUpEvent) { return; } // filter SysKey if (IsSysKeyDown()) return; // IMM32-IME handles the key event and we don't do anything. if (InputMethod.IsImm32ImeCurrent()) return; DependencyObject element = Keyboard.FocusedElement as DependencyObject; if ((element == null) || (bool)element.GetValue(InputMethod.IsInputMethodSuspendedProperty)) { // The focus is on the element that suspending IME's input (such as menu). // we don't do anything. return; } keyArgs = (KeyEventArgs)e.StagingItem.Input; if(!keyArgs.Handled) { context = TextServicesContext.DispatcherCurrent; if (context != null) { if (TextServicesKeystroke(context, keyArgs, true /* test */)) { keyArgs.MarkImeProcessed(); } } } } ////// Critical - directly pushes keys into the input stack /// [SecurityCritical] private void PostProcessInput(object sender, ProcessInputEventArgs e) { TextServicesContext context; KeyEventArgs keyArgs; if (!TextServicesLoader.ServicesInstalled) return; // IMM32-IME handles the key event and we don't do anything. if (InputMethod.IsImm32ImeCurrent()) return; DependencyObject element = Keyboard.FocusedElement as DependencyObject; if ((element == null) || (bool)element.GetValue(InputMethod.IsInputMethodSuspendedProperty)) { // The focus is on the element that suspending IME's input (such as menu). // we don't do anything. return; } if(e.StagingItem.Input.RoutedEvent == Keyboard.PreviewKeyDownEvent || e.StagingItem.Input.RoutedEvent == Keyboard.PreviewKeyUpEvent) { // filter SysKey if (IsSysKeyDown()) return; keyArgs = (KeyEventArgs)e.StagingItem.Input; if(!keyArgs.Handled && keyArgs.Key == Key.ImeProcessed) { context = TextServicesContext.DispatcherCurrent; if (context != null) { if (TextServicesKeystroke(context, keyArgs, false /* test */)) { keyArgs.Handled = true; } } } } else if(e.StagingItem.Input.RoutedEvent == Keyboard.KeyDownEvent || e.StagingItem.Input.RoutedEvent == Keyboard.KeyUpEvent) { keyArgs = (KeyEventArgs)e.StagingItem.Input; if(!keyArgs.Handled && keyArgs.Key == Key.ImeProcessed) { keyArgs.Handled = true; } } } ////// Critical - directly pushes keys into the input stack /// [SecurityCritical] private bool TextServicesKeystroke(TextServicesContext context, KeyEventArgs keyArgs, bool test) { TextServicesContext.KeyOp keyop; int wParam; int lParam; int scancode; // Cicero's Keystroke Manager and TIP does not recognize VK_RSHIFT or VK_LSHIFT. // We need to pass VK_SHIFT and the proper scancode. // switch (keyArgs.RealKey) { case Key.RightShift: wParam = NativeMethods.VK_SHIFT; scancode = 0x36; break; case Key.LeftShift: wParam = NativeMethods.VK_SHIFT; scancode = 0x2A; break; default: wParam = KeyInterop.VirtualKeyFromKey(keyArgs.RealKey); scancode = 0; break; } lParam = (int)(((uint)scancode << 16) | 1); if (keyArgs.RoutedEvent == Keyboard.PreviewKeyDownEvent/*keyArgs.IsDown*/) { keyop = test ? TextServicesContext.KeyOp.TestDown : TextServicesContext.KeyOp.Down; } else { // Previous key state and transition state always 1 for WM_KEYUP. lParam |= (1 << 31) | (1 << 30); keyop = test ? TextServicesContext.KeyOp.TestUp : TextServicesContext.KeyOp.Up; } return context.Keystroke(wParam, lParam, keyop); } private bool IsSysKeyDown() { if (Keyboard.IsKeyDown(Key.LeftAlt) || Keyboard.IsKeyDown(Key.RightAlt) || Keyboard.IsKeyDown(Key.F10)) return true; return false; } #endregion Private methods //----------------------------------------------------- // // Private Properties // //----------------------------------------------------- //------------------------------------------------------ // // Private Fields // //----------------------------------------------------- #region Private Fields ////// Critical - required elevations to create. /// [SecurityCritical] private readonly InputManager _inputManager; #endregion Private Fields } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Provides input to ImeProcessed promotion -- feeds keystrokes // to IMEs. // // History: // 07/23/2003 : benwest - Created // //--------------------------------------------------------------------------- using System.Windows.Threading; using MS.Internal; using MS.Win32; using System; using System.Security; using System.Security.Permissions; namespace System.Windows.Input { internal class TextServicesManager : DispatcherObject { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors ////// Critical - Calls a critical method - PreProcessInput /// TreatAsSafe - Ok for us to register an event handler. Handler itself is critical. /// [SecurityCritical, SecurityTreatAsSafe] internal TextServicesManager(InputManager inputManager) { _inputManager = inputManager; _inputManager.PreProcessInput += new PreProcessInputEventHandler(PreProcessInput); _inputManager.PostProcessInput += new ProcessInputEventHandler(PostProcessInput); } #endregion Constructors //------------------------------------------------------ // // Public Methods // //----------------------------------------------------- //------------------------------------------------------ // // Public Properties // //------------------------------------------------------ //----------------------------------------------------- // // Public Events // //------------------------------------------------------ //----------------------------------------------------- // // Protected Methods // //----------------------------------------------------- //----------------------------------------------------- // // Internal Methods // //------------------------------------------------------ // Track the focus of KeyboardDevice. KeyboardDevice.ChangeFocus() this. internal void Focus(DependencyObject focus) { if (focus == null) { // Don't grab keyboard events from Text Services Framework without keyboard focus. this.Dispatcher.IsTSFMessagePumpEnabled = false; return; } // Grab keyboard events from Text Services Framework with keyboard focus. this.Dispatcher.IsTSFMessagePumpEnabled = true; if ((bool)focus.GetValue(InputMethod.IsInputMethodSuspendedProperty)) { // The focus is on the element that suspending IME's input (such as menu). // The document focus should remain. return; } InputMethod.Current.EnableOrDisableInputMethod((bool)focus.GetValue(InputMethod.IsInputMethodEnabledProperty)); } //----------------------------------------------------- // // Internal Properties // //------------------------------------------------------ //------------------------------------------------------ // // Internal Events // //----------------------------------------------------- //------------------------------------------------------ // // Private Methods // //----------------------------------------------------- #region Private Methods // Marks interesting KeyDown events as ImeInput. ////// Critical - directly pushes keys into the input stack /// [SecurityCritical] private void PreProcessInput(object sender, PreProcessInputEventArgs e) { TextServicesContext context; KeyEventArgs keyArgs; if (!TextServicesLoader.ServicesInstalled) return; if(e.StagingItem.Input.RoutedEvent != Keyboard.PreviewKeyDownEvent && e.StagingItem.Input.RoutedEvent != Keyboard.PreviewKeyUpEvent) { return; } // filter SysKey if (IsSysKeyDown()) return; // IMM32-IME handles the key event and we don't do anything. if (InputMethod.IsImm32ImeCurrent()) return; DependencyObject element = Keyboard.FocusedElement as DependencyObject; if ((element == null) || (bool)element.GetValue(InputMethod.IsInputMethodSuspendedProperty)) { // The focus is on the element that suspending IME's input (such as menu). // we don't do anything. return; } keyArgs = (KeyEventArgs)e.StagingItem.Input; if(!keyArgs.Handled) { context = TextServicesContext.DispatcherCurrent; if (context != null) { if (TextServicesKeystroke(context, keyArgs, true /* test */)) { keyArgs.MarkImeProcessed(); } } } } ////// Critical - directly pushes keys into the input stack /// [SecurityCritical] private void PostProcessInput(object sender, ProcessInputEventArgs e) { TextServicesContext context; KeyEventArgs keyArgs; if (!TextServicesLoader.ServicesInstalled) return; // IMM32-IME handles the key event and we don't do anything. if (InputMethod.IsImm32ImeCurrent()) return; DependencyObject element = Keyboard.FocusedElement as DependencyObject; if ((element == null) || (bool)element.GetValue(InputMethod.IsInputMethodSuspendedProperty)) { // The focus is on the element that suspending IME's input (such as menu). // we don't do anything. return; } if(e.StagingItem.Input.RoutedEvent == Keyboard.PreviewKeyDownEvent || e.StagingItem.Input.RoutedEvent == Keyboard.PreviewKeyUpEvent) { // filter SysKey if (IsSysKeyDown()) return; keyArgs = (KeyEventArgs)e.StagingItem.Input; if(!keyArgs.Handled && keyArgs.Key == Key.ImeProcessed) { context = TextServicesContext.DispatcherCurrent; if (context != null) { if (TextServicesKeystroke(context, keyArgs, false /* test */)) { keyArgs.Handled = true; } } } } else if(e.StagingItem.Input.RoutedEvent == Keyboard.KeyDownEvent || e.StagingItem.Input.RoutedEvent == Keyboard.KeyUpEvent) { keyArgs = (KeyEventArgs)e.StagingItem.Input; if(!keyArgs.Handled && keyArgs.Key == Key.ImeProcessed) { keyArgs.Handled = true; } } } ////// Critical - directly pushes keys into the input stack /// [SecurityCritical] private bool TextServicesKeystroke(TextServicesContext context, KeyEventArgs keyArgs, bool test) { TextServicesContext.KeyOp keyop; int wParam; int lParam; int scancode; // Cicero's Keystroke Manager and TIP does not recognize VK_RSHIFT or VK_LSHIFT. // We need to pass VK_SHIFT and the proper scancode. // switch (keyArgs.RealKey) { case Key.RightShift: wParam = NativeMethods.VK_SHIFT; scancode = 0x36; break; case Key.LeftShift: wParam = NativeMethods.VK_SHIFT; scancode = 0x2A; break; default: wParam = KeyInterop.VirtualKeyFromKey(keyArgs.RealKey); scancode = 0; break; } lParam = (int)(((uint)scancode << 16) | 1); if (keyArgs.RoutedEvent == Keyboard.PreviewKeyDownEvent/*keyArgs.IsDown*/) { keyop = test ? TextServicesContext.KeyOp.TestDown : TextServicesContext.KeyOp.Down; } else { // Previous key state and transition state always 1 for WM_KEYUP. lParam |= (1 << 31) | (1 << 30); keyop = test ? TextServicesContext.KeyOp.TestUp : TextServicesContext.KeyOp.Up; } return context.Keystroke(wParam, lParam, keyop); } private bool IsSysKeyDown() { if (Keyboard.IsKeyDown(Key.LeftAlt) || Keyboard.IsKeyDown(Key.RightAlt) || Keyboard.IsKeyDown(Key.F10)) return true; return false; } #endregion Private methods //----------------------------------------------------- // // Private Properties // //----------------------------------------------------- //------------------------------------------------------ // // Private Fields // //----------------------------------------------------- #region Private Fields ////// Critical - required elevations to create. /// [SecurityCritical] private readonly InputManager _inputManager; #endregion Private Fields } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- EnumValidator.cs
- XDRSchema.cs
- ContainerParaClient.cs
- UserControlBuildProvider.cs
- RowToFieldTransformer.cs
- OdbcDataAdapter.cs
- ToolBarTray.cs
- WebReferencesBuildProvider.cs
- OverlappedAsyncResult.cs
- MemberJoinTreeNode.cs
- QilTargetType.cs
- CapabilitiesUse.cs
- Help.cs
- DoubleLink.cs
- GroupStyle.cs
- Token.cs
- ProcessHostConfigUtils.cs
- CertificateManager.cs
- DataRecordInfo.cs
- IndexOutOfRangeException.cs
- IssuedSecurityTokenProvider.cs
- XsltConvert.cs
- ActivationWorker.cs
- OperationAbortedException.cs
- NameScope.cs
- ArrayElementGridEntry.cs
- ThaiBuddhistCalendar.cs
- WindowsSecurityTokenAuthenticator.cs
- WmlLiteralTextAdapter.cs
- SafeRightsManagementHandle.cs
- DecoratedNameAttribute.cs
- PropertyGridView.cs
- EventSinkHelperWriter.cs
- EarlyBoundInfo.cs
- OutputCacheSettings.cs
- SecurityTokenAuthenticator.cs
- XmlIlTypeHelper.cs
- WebPartDescriptionCollection.cs
- StandardRuntimeEnumValidator.cs
- SchemaMerger.cs
- RequestQueue.cs
- SpinWait.cs
- ConnectionStringEditor.cs
- ProtectedConfiguration.cs
- TextDpi.cs
- WebSysDisplayNameAttribute.cs
- WebCategoryAttribute.cs
- ReachDocumentPageSerializer.cs
- StateManagedCollection.cs
- ServiceModelExtensionElement.cs
- StaticContext.cs
- FullTextState.cs
- Html32TextWriter.cs
- SqlConnectionPoolGroupProviderInfo.cs
- Overlapped.cs
- StrokeSerializer.cs
- MetadataImporterQuotas.cs
- OdbcHandle.cs
- StreamInfo.cs
- SqlReorderer.cs
- SystemWebSectionGroup.cs
- ClientTarget.cs
- FatalException.cs
- MatrixTransform3D.cs
- TreeNodeCollectionEditorDialog.cs
- _DomainName.cs
- SoapFault.cs
- TemplatedMailWebEventProvider.cs
- SchemaNotation.cs
- BuildResult.cs
- AdapterDictionary.cs
- XmlSchemaSequence.cs
- Or.cs
- CodeSubDirectory.cs
- DbProviderFactories.cs
- ControlPersister.cs
- PathGeometry.cs
- _Win32.cs
- FileLogRecordEnumerator.cs
- SamlSerializer.cs
- XmlHelper.cs
- SBCSCodePageEncoding.cs
- GraphicsPathIterator.cs
- RbTree.cs
- QueryCreatedEventArgs.cs
- DynamicDataManager.cs
- ArrayWithOffset.cs
- TextEditorParagraphs.cs
- ErrorActivity.cs
- SelectionChangedEventArgs.cs
- ProgressBarHighlightConverter.cs
- CollectionViewGroupRoot.cs
- Paragraph.cs
- coordinatorscratchpad.cs
- DockPanel.cs
- EntityDataReader.cs
- ActivityExecutor.cs
- ScrollableControlDesigner.cs
- DocumentPaginator.cs
- __FastResourceComparer.cs