Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Core / CSharp / System / Windows / Input / Command / InputBinding.cs / 1 / InputBinding.cs
//---------------------------------------------------------------------------- // // Copyright (C) Microsoft Corporation. All rights reserved. // //--------------------------------------------------------------------------- using System; using System.Security; // SecurityCritical, TreatAsSafe using System.Security.Permissions; using System.Windows; using System.Windows.Markup; using System.ComponentModel; namespace System.Windows.Input { ////// InputBinding - InputGesture and ICommand combination /// Used to specify the binding between Gesture and Command at Element level. /// public class InputBinding : DependencyObject, ICommandSource { #region Constructor ////// Default Constructor - needed to allow markup creation /// protected InputBinding() { } ////// Constructor /// /// Command /// Input Gesture ////// Critical - may associate a secure command with a gesture, in /// these cases we need to demand the appropriate permission. /// TreatAsSafe - Calls CheckSecureCommand which does the appropriate demand. /// [SecurityCritical] public InputBinding(ICommand command, InputGesture gesture) { if (command == null) throw new ArgumentNullException("command"); if (gesture == null) throw new ArgumentNullException("gesture"); // Check before assignment to avoid continuation CheckSecureCommand(command, gesture); _command = command; _gesture = gesture; } #endregion Constructor //----------------------------------------------------- // // Public Methods // //----------------------------------------------------- #region Public Methods ////// Command Object associated /// ////// Critical - may associate a secure command with a gesture, in /// these cases we need to demand the appropriate permission. /// PublicOk - Calls CheckSecureCommand which does the appropriate demand. /// [TypeConverter("System.Windows.Input.CommandConverter, PresentationFramework, Version=" + Microsoft.Internal.BuildInfo.WCP_VERSION + ", Culture=neutral, PublicKeyToken=" + Microsoft.Internal.BuildInfo.WCP_PUBLIC_KEY_TOKEN + ", Custom=null")] [Localizability(LocalizationCategory.NeverLocalize)] // cannot be localized public ICommand Command { get { return _command; } [SecurityCritical] set { if (value == null) throw new ArgumentNullException("value"); lock (_dataLock) { // Check before assignment to avoid continuation // CheckSecureCommand(value, _gesture); _command = value; } } } ////// A parameter for the command. /// public object CommandParameter { get { return _commandParameter; } set { lock (_dataLock) { _commandParameter = value; } } } ////// Where the command should be raised. /// public IInputElement CommandTarget { get { return _commandTarget; } set { lock (_dataLock) { _commandTarget = value; } } } ////// InputGesture associated with the Command /// ////// Critical - may associate a secure command with a gesture, in /// these cases we need to demand the appropriate permission. /// PublicOk - Calls CheckSecureCommand which does the appropriate demand. /// public virtual InputGesture Gesture { // We would like to make this getter non-virtual but that's not legal // in C#. Luckily there is no security issue with leaving it virtual. get { return _gesture; } [SecurityCritical] set { if (value == null) throw new ArgumentNullException("value"); lock (_dataLock) { // Check before assignment to avoid continuation // CheckSecureCommand(_command, value); _gesture = value; } } } #endregion Public Methods //------------------------------------------------------ // // Internal Methods // //----------------------------------------------------- ////// Critical - determines if a command will later make an /// assert. This is critical to be right, because /// later we assume that the binding was protected. /// TreatAsSafe - Demand() is not an unsafe operation /// [SecurityCritical, SecurityTreatAsSafe] void CheckSecureCommand(ICommand command, InputGesture gesture) { ISecureCommand secure = command as ISecureCommand; if (secure != null) { secure.UserInitiatedPermission.Demand(); } } //------------------------------------------------------ // // Private Fields // //------------------------------------------------------ #region Private Fields private ICommand _command = null ; private InputGesture _gesture = null ; private object _commandParameter; private IInputElement _commandTarget; internal static object _dataLock = new object(); #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. // //--------------------------------------------------------------------------- using System; using System.Security; // SecurityCritical, TreatAsSafe using System.Security.Permissions; using System.Windows; using System.Windows.Markup; using System.ComponentModel; namespace System.Windows.Input { ////// InputBinding - InputGesture and ICommand combination /// Used to specify the binding between Gesture and Command at Element level. /// public class InputBinding : DependencyObject, ICommandSource { #region Constructor ////// Default Constructor - needed to allow markup creation /// protected InputBinding() { } ////// Constructor /// /// Command /// Input Gesture ////// Critical - may associate a secure command with a gesture, in /// these cases we need to demand the appropriate permission. /// TreatAsSafe - Calls CheckSecureCommand which does the appropriate demand. /// [SecurityCritical] public InputBinding(ICommand command, InputGesture gesture) { if (command == null) throw new ArgumentNullException("command"); if (gesture == null) throw new ArgumentNullException("gesture"); // Check before assignment to avoid continuation CheckSecureCommand(command, gesture); _command = command; _gesture = gesture; } #endregion Constructor //----------------------------------------------------- // // Public Methods // //----------------------------------------------------- #region Public Methods ////// Command Object associated /// ////// Critical - may associate a secure command with a gesture, in /// these cases we need to demand the appropriate permission. /// PublicOk - Calls CheckSecureCommand which does the appropriate demand. /// [TypeConverter("System.Windows.Input.CommandConverter, PresentationFramework, Version=" + Microsoft.Internal.BuildInfo.WCP_VERSION + ", Culture=neutral, PublicKeyToken=" + Microsoft.Internal.BuildInfo.WCP_PUBLIC_KEY_TOKEN + ", Custom=null")] [Localizability(LocalizationCategory.NeverLocalize)] // cannot be localized public ICommand Command { get { return _command; } [SecurityCritical] set { if (value == null) throw new ArgumentNullException("value"); lock (_dataLock) { // Check before assignment to avoid continuation // CheckSecureCommand(value, _gesture); _command = value; } } } ////// A parameter for the command. /// public object CommandParameter { get { return _commandParameter; } set { lock (_dataLock) { _commandParameter = value; } } } ////// Where the command should be raised. /// public IInputElement CommandTarget { get { return _commandTarget; } set { lock (_dataLock) { _commandTarget = value; } } } ////// InputGesture associated with the Command /// ////// Critical - may associate a secure command with a gesture, in /// these cases we need to demand the appropriate permission. /// PublicOk - Calls CheckSecureCommand which does the appropriate demand. /// public virtual InputGesture Gesture { // We would like to make this getter non-virtual but that's not legal // in C#. Luckily there is no security issue with leaving it virtual. get { return _gesture; } [SecurityCritical] set { if (value == null) throw new ArgumentNullException("value"); lock (_dataLock) { // Check before assignment to avoid continuation // CheckSecureCommand(_command, value); _gesture = value; } } } #endregion Public Methods //------------------------------------------------------ // // Internal Methods // //----------------------------------------------------- ////// Critical - determines if a command will later make an /// assert. This is critical to be right, because /// later we assume that the binding was protected. /// TreatAsSafe - Demand() is not an unsafe operation /// [SecurityCritical, SecurityTreatAsSafe] void CheckSecureCommand(ICommand command, InputGesture gesture) { ISecureCommand secure = command as ISecureCommand; if (secure != null) { secure.UserInitiatedPermission.Demand(); } } //------------------------------------------------------ // // Private Fields // //------------------------------------------------------ #region Private Fields private ICommand _command = null ; private InputGesture _gesture = null ; private object _commandParameter; private IInputElement _commandTarget; internal static object _dataLock = new object(); #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
- SystemIPInterfaceProperties.cs
- ListControlStringCollectionEditor.cs
- Intellisense.cs
- CodeEventReferenceExpression.cs
- _OSSOCK.cs
- HttpListenerResponse.cs
- StylusPoint.cs
- _NegoState.cs
- GradientBrush.cs
- InkCanvas.cs
- HttpPostServerProtocol.cs
- MessageQueueConverter.cs
- RSACryptoServiceProvider.cs
- LightweightCodeGenerator.cs
- HttpCookiesSection.cs
- ExtenderControl.cs
- Win32SafeHandles.cs
- SemanticBasicElement.cs
- CharacterHit.cs
- FormatException.cs
- AttachmentCollection.cs
- NestedContainer.cs
- StyleModeStack.cs
- LoadItemsEventArgs.cs
- DescendantBaseQuery.cs
- _SSPIWrapper.cs
- WebPartConnectionsCancelVerb.cs
- SuppressMergeCheckAttribute.cs
- Delegate.cs
- CodeDefaultValueExpression.cs
- XmlDataSource.cs
- Utilities.cs
- ToolStripItemClickedEventArgs.cs
- SafeUserTokenHandle.cs
- XmlLoader.cs
- TextDecorationUnitValidation.cs
- XmlSchemaElement.cs
- XhtmlTextWriter.cs
- IIS7UserPrincipal.cs
- ListViewItem.cs
- CommandEventArgs.cs
- SessionStateSection.cs
- DesigntimeLicenseContext.cs
- XamlHttpHandlerFactory.cs
- ReadWriteObjectLock.cs
- MessagePropertyFilter.cs
- BamlResourceSerializer.cs
- LongTypeConverter.cs
- DATA_BLOB.cs
- DialogResultConverter.cs
- OrderedEnumerableRowCollection.cs
- MSG.cs
- Transform3D.cs
- GridViewHeaderRowPresenter.cs
- NeutralResourcesLanguageAttribute.cs
- InstanceOwnerQueryResult.cs
- ToolboxDataAttribute.cs
- LifetimeServices.cs
- BuildManager.cs
- BufferedWebEventProvider.cs
- Grid.cs
- _ScatterGatherBuffers.cs
- FrameworkElement.cs
- GiveFeedbackEventArgs.cs
- SQLMembershipProvider.cs
- CustomTypeDescriptor.cs
- MembershipSection.cs
- ReadOnlyHierarchicalDataSource.cs
- ComponentChangedEvent.cs
- EncodingInfo.cs
- DesignerSerializationOptionsAttribute.cs
- Accessible.cs
- SurrogateChar.cs
- Pts.cs
- HMACSHA512.cs
- SHA512Managed.cs
- DrawToolTipEventArgs.cs
- SqlDataSourceCommandEventArgs.cs
- CollectionBase.cs
- ClientBuildManagerCallback.cs
- StatusBarDrawItemEvent.cs
- ValidationSummary.cs
- WorkflowMarkupElementEventArgs.cs
- CloseCollectionAsyncResult.cs
- TabPage.cs
- ObjectStorage.cs
- QualifiedCellIdBoolean.cs
- RepeatInfo.cs
- PenLineJoinValidation.cs
- SystemBrushes.cs
- Roles.cs
- SafeCryptHandles.cs
- ClassHandlersStore.cs
- ValidationUtility.cs
- TrackingExtract.cs
- FacetValueContainer.cs
- CursorConverter.cs
- ConfigPathUtility.cs
- NoneExcludedImageIndexConverter.cs
- ListViewItemSelectionChangedEvent.cs