Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Framework / System / Windows / Automation / Peers / MenuItemAutomationPeer.cs / 1 / MenuItemAutomationPeer.cs
using System; using System.Collections; using System.Collections.Generic; using System.Runtime.InteropServices; using System.Security; using System.Text; using System.Windows; using System.Windows.Automation.Provider; using System.Windows.Controls; using System.Windows.Controls.Primitives; using System.Windows.Interop; using System.Windows.Media; using MS.Internal; using MS.Win32; namespace System.Windows.Automation.Peers { /// public class MenuItemAutomationPeer : FrameworkElementAutomationPeer, IExpandCollapseProvider, IInvokeProvider, IToggleProvider { /// public MenuItemAutomationPeer(MenuItem owner): base(owner) { } /// override protected string GetClassNameCore() { return "MenuItem"; } /// override protected AutomationControlType GetAutomationControlTypeCore() { return AutomationControlType.MenuItem; } /// override public object GetPattern(PatternInterface patternInterface) { object result = null; MenuItem owner = (MenuItem)Owner; if (patternInterface == PatternInterface.ExpandCollapse) { MenuItemRole role = owner.Role; if ( (role == MenuItemRole.TopLevelHeader || role == MenuItemRole.SubmenuHeader) && owner.HasItems) { result = this; } } else if (patternInterface == PatternInterface.Toggle) { if (owner.IsCheckable) { result = this; } } else if (patternInterface == PatternInterface.Invoke) { MenuItemRole role = owner.Role; if ( (role == MenuItemRole.TopLevelItem || role == MenuItemRole.SubmenuItem) && !owner.HasItems) { result = this; } } return result; } /// override protected string GetAccessKeyCore() { string accessKey = base.GetAccessKeyCore(); if (!string.IsNullOrEmpty(accessKey)) { MenuItem menuItem = (MenuItem)Owner; MenuItemRole role = menuItem.Role; if (role == MenuItemRole.TopLevelHeader || role == MenuItemRole.TopLevelItem) { accessKey = "Alt+" + accessKey; } } return accessKey; } // MenuItem cannot rely on the base which gets the visal children because submenu items are part of // other visual tree under a Popup. // We return the list of items containers if they are currently visible // In case MenuItem is not expanded we return null /// protected override ListGetChildrenCore() { List children = null; if (ExpandCollapseState.Expanded == ((IExpandCollapseProvider)this).ExpandCollapseState) { ItemsControl owner = (ItemsControl)Owner; ItemCollection items = owner.Items; if (items.Count > 0) { children = new List (items.Count); for (int i = 0; i < items.Count; i++) { UIElement uiElement = owner.ItemContainerGenerator.ContainerFromIndex(i) as UIElement; if (uiElement != null) { AutomationPeer peer = UIElementAutomationPeer.FromElement(uiElement); if (peer == null) peer = UIElementAutomationPeer.CreatePeerForElement(uiElement); children.Add(peer); } } } } return children; } /// void IExpandCollapseProvider.Expand() { if(!IsEnabled()) throw new ElementNotEnabledException(); MenuItem owner = (MenuItem)Owner; MenuItemRole role = owner.Role; if ( (role != MenuItemRole.TopLevelHeader && role != MenuItemRole.SubmenuHeader) || !owner.HasItems) { throw new InvalidOperationException(SR.Get(SRID.UIA_OperationCannotBePerformed)); } owner.OpenMenu(); } /// void IExpandCollapseProvider.Collapse() { if(!IsEnabled()) throw new ElementNotEnabledException(); MenuItem owner = (MenuItem)Owner; MenuItemRole role = owner.Role; if ( (role != MenuItemRole.TopLevelHeader && role != MenuItemRole.SubmenuHeader) || !owner.HasItems) { throw new InvalidOperationException(SR.Get(SRID.UIA_OperationCannotBePerformed)); } owner.IsSubmenuOpen = false; } /// ExpandCollapseState IExpandCollapseProvider.ExpandCollapseState { get { ExpandCollapseState result = ExpandCollapseState.Collapsed; MenuItem owner = (MenuItem)Owner; MenuItemRole role = owner.Role; if (role == MenuItemRole.TopLevelItem || role == MenuItemRole.SubmenuItem || !owner.HasItems) { result = ExpandCollapseState.LeafNode; } else if (owner.IsSubmenuOpen) { result = ExpandCollapseState.Expanded; } return result; } } /// void IInvokeProvider.Invoke() { if(!IsEnabled()) throw new ElementNotEnabledException(); MenuItem owner = (MenuItem)Owner; MenuItemRole role = owner.Role; if (role == MenuItemRole.TopLevelItem || role == MenuItemRole.SubmenuItem) { owner.ClickItem(); } else if (role == MenuItemRole.TopLevelHeader || role == MenuItemRole.SubmenuHeader) { owner.ClickHeader(); } } /// void IToggleProvider.Toggle() { if(!IsEnabled()) throw new ElementNotEnabledException(); MenuItem owner = (MenuItem)Owner; if (!owner.IsCheckable) { throw new InvalidOperationException(SR.Get(SRID.UIA_OperationCannotBePerformed)); } owner.IsChecked = !owner.IsChecked; } /// ToggleState IToggleProvider.ToggleState { get { MenuItem owner = (MenuItem)Owner; return owner.IsChecked ? ToggleState.On : ToggleState.Off; } } /// // [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)] internal void RaiseExpandCollapseAutomationEvent(bool oldValue, bool newValue) { RaisePropertyChangedEvent( ExpandCollapsePatternIdentifiers.ExpandCollapseStateProperty, oldValue ? ExpandCollapseState.Expanded : ExpandCollapseState.Collapsed, newValue ? ExpandCollapseState.Expanded : ExpandCollapseState.Collapsed); } // Return the base without the AccessKey character /// override protected string GetNameCore() { string result = base.GetNameCore(); if (!string.IsNullOrEmpty(result)) { MenuItem menuItem = (MenuItem)Owner; if (menuItem.Header is string) { return AccessText.RemoveAccessKeyMarker(result); } } return result; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. using System; using System.Collections; using System.Collections.Generic; using System.Runtime.InteropServices; using System.Security; using System.Text; using System.Windows; using System.Windows.Automation.Provider; using System.Windows.Controls; using System.Windows.Controls.Primitives; using System.Windows.Interop; using System.Windows.Media; using MS.Internal; using MS.Win32; namespace System.Windows.Automation.Peers { /// public class MenuItemAutomationPeer : FrameworkElementAutomationPeer, IExpandCollapseProvider, IInvokeProvider, IToggleProvider { /// public MenuItemAutomationPeer(MenuItem owner): base(owner) { } /// override protected string GetClassNameCore() { return "MenuItem"; } /// override protected AutomationControlType GetAutomationControlTypeCore() { return AutomationControlType.MenuItem; } /// override public object GetPattern(PatternInterface patternInterface) { object result = null; MenuItem owner = (MenuItem)Owner; if (patternInterface == PatternInterface.ExpandCollapse) { MenuItemRole role = owner.Role; if ( (role == MenuItemRole.TopLevelHeader || role == MenuItemRole.SubmenuHeader) && owner.HasItems) { result = this; } } else if (patternInterface == PatternInterface.Toggle) { if (owner.IsCheckable) { result = this; } } else if (patternInterface == PatternInterface.Invoke) { MenuItemRole role = owner.Role; if ( (role == MenuItemRole.TopLevelItem || role == MenuItemRole.SubmenuItem) && !owner.HasItems) { result = this; } } return result; } /// override protected string GetAccessKeyCore() { string accessKey = base.GetAccessKeyCore(); if (!string.IsNullOrEmpty(accessKey)) { MenuItem menuItem = (MenuItem)Owner; MenuItemRole role = menuItem.Role; if (role == MenuItemRole.TopLevelHeader || role == MenuItemRole.TopLevelItem) { accessKey = "Alt+" + accessKey; } } return accessKey; } // MenuItem cannot rely on the base which gets the visal children because submenu items are part of // other visual tree under a Popup. // We return the list of items containers if they are currently visible // In case MenuItem is not expanded we return null /// protected override List GetChildrenCore() { List children = null; if (ExpandCollapseState.Expanded == ((IExpandCollapseProvider)this).ExpandCollapseState) { ItemsControl owner = (ItemsControl)Owner; ItemCollection items = owner.Items; if (items.Count > 0) { children = new List (items.Count); for (int i = 0; i < items.Count; i++) { UIElement uiElement = owner.ItemContainerGenerator.ContainerFromIndex(i) as UIElement; if (uiElement != null) { AutomationPeer peer = UIElementAutomationPeer.FromElement(uiElement); if (peer == null) peer = UIElementAutomationPeer.CreatePeerForElement(uiElement); children.Add(peer); } } } } return children; } /// void IExpandCollapseProvider.Expand() { if(!IsEnabled()) throw new ElementNotEnabledException(); MenuItem owner = (MenuItem)Owner; MenuItemRole role = owner.Role; if ( (role != MenuItemRole.TopLevelHeader && role != MenuItemRole.SubmenuHeader) || !owner.HasItems) { throw new InvalidOperationException(SR.Get(SRID.UIA_OperationCannotBePerformed)); } owner.OpenMenu(); } /// void IExpandCollapseProvider.Collapse() { if(!IsEnabled()) throw new ElementNotEnabledException(); MenuItem owner = (MenuItem)Owner; MenuItemRole role = owner.Role; if ( (role != MenuItemRole.TopLevelHeader && role != MenuItemRole.SubmenuHeader) || !owner.HasItems) { throw new InvalidOperationException(SR.Get(SRID.UIA_OperationCannotBePerformed)); } owner.IsSubmenuOpen = false; } /// ExpandCollapseState IExpandCollapseProvider.ExpandCollapseState { get { ExpandCollapseState result = ExpandCollapseState.Collapsed; MenuItem owner = (MenuItem)Owner; MenuItemRole role = owner.Role; if (role == MenuItemRole.TopLevelItem || role == MenuItemRole.SubmenuItem || !owner.HasItems) { result = ExpandCollapseState.LeafNode; } else if (owner.IsSubmenuOpen) { result = ExpandCollapseState.Expanded; } return result; } } /// void IInvokeProvider.Invoke() { if(!IsEnabled()) throw new ElementNotEnabledException(); MenuItem owner = (MenuItem)Owner; MenuItemRole role = owner.Role; if (role == MenuItemRole.TopLevelItem || role == MenuItemRole.SubmenuItem) { owner.ClickItem(); } else if (role == MenuItemRole.TopLevelHeader || role == MenuItemRole.SubmenuHeader) { owner.ClickHeader(); } } /// void IToggleProvider.Toggle() { if(!IsEnabled()) throw new ElementNotEnabledException(); MenuItem owner = (MenuItem)Owner; if (!owner.IsCheckable) { throw new InvalidOperationException(SR.Get(SRID.UIA_OperationCannotBePerformed)); } owner.IsChecked = !owner.IsChecked; } /// ToggleState IToggleProvider.ToggleState { get { MenuItem owner = (MenuItem)Owner; return owner.IsChecked ? ToggleState.On : ToggleState.Off; } } /// // [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)] internal void RaiseExpandCollapseAutomationEvent(bool oldValue, bool newValue) { RaisePropertyChangedEvent( ExpandCollapsePatternIdentifiers.ExpandCollapseStateProperty, oldValue ? ExpandCollapseState.Expanded : ExpandCollapseState.Collapsed, newValue ? ExpandCollapseState.Expanded : ExpandCollapseState.Collapsed); } // Return the base without the AccessKey character /// override protected string GetNameCore() { string result = base.GetNameCore(); if (!string.IsNullOrEmpty(result)) { MenuItem menuItem = (MenuItem)Owner; if (menuItem.Header is string) { return AccessText.RemoveAccessKeyMarker(result); } } return result; } } } // 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
- TextHidden.cs
- StringStorage.cs
- PasswordRecoveryDesigner.cs
- FillErrorEventArgs.cs
- Duration.cs
- ListParagraph.cs
- XmlSchemaAttributeGroupRef.cs
- DataGridViewAutoSizeColumnsModeEventArgs.cs
- Link.cs
- TypeUnloadedException.cs
- LogLogRecord.cs
- GeneralTransform.cs
- DataGridViewCell.cs
- XmlSchemaSimpleContentExtension.cs
- ListViewSelectEventArgs.cs
- Directory.cs
- DateTimeSerializationSection.cs
- HttpException.cs
- WindowsGraphics2.cs
- NameSpaceExtractor.cs
- ContainerTracking.cs
- OpenFileDialog.cs
- BadImageFormatException.cs
- GraphicsContext.cs
- ExpressionPrefixAttribute.cs
- XamlWriter.cs
- OleDbPermission.cs
- DynamicPropertyHolder.cs
- OutputWindow.cs
- StandardTransformFactory.cs
- MessageDecoder.cs
- HelpEvent.cs
- PhysicalFontFamily.cs
- TypedServiceOperationListItem.cs
- EndPoint.cs
- IssuedTokenClientBehaviorsElement.cs
- ClientFormsIdentity.cs
- AsymmetricCryptoHandle.cs
- ObjectTokenCategory.cs
- BaseValidator.cs
- Relationship.cs
- XPathExpr.cs
- LocatorGroup.cs
- CodeValidator.cs
- PackageRelationshipSelector.cs
- CatalogPartChrome.cs
- DataService.cs
- UrlParameterReader.cs
- RecognitionEventArgs.cs
- MemberRelationshipService.cs
- IncrementalHitTester.cs
- FieldToken.cs
- TemplateApplicationHelper.cs
- DataViewSetting.cs
- ActivitiesCollection.cs
- ToolBarPanel.cs
- EasingKeyFrames.cs
- ListViewDataItem.cs
- DisableDpiAwarenessAttribute.cs
- ActivationProxy.cs
- LocatorBase.cs
- Line.cs
- LocalizationComments.cs
- ErrorHandlerModule.cs
- LabelEditEvent.cs
- NavigatorOutput.cs
- WebServiceData.cs
- ResourceBinder.cs
- AsyncPostBackTrigger.cs
- ListBoxItemAutomationPeer.cs
- backend.cs
- Triangle.cs
- ViewBase.cs
- DataBoundControlHelper.cs
- GenericTypeParameterConverter.cs
- Divide.cs
- HtmlTableRow.cs
- CharAnimationBase.cs
- Assembly.cs
- InvalidEnumArgumentException.cs
- StackBuilderSink.cs
- ResXResourceWriter.cs
- KnownBoxes.cs
- StylusTouchDevice.cs
- PolyBezierSegment.cs
- TypeNameConverter.cs
- Simplifier.cs
- Maps.cs
- ToolStripRenderEventArgs.cs
- RefExpr.cs
- SpotLight.cs
- ExpressionPrinter.cs
- DropShadowBitmapEffect.cs
- MemoryPressure.cs
- HwndHostAutomationPeer.cs
- RequestCacheEntry.cs
- HWStack.cs
- XmlSchemaCollection.cs
- TextSerializer.cs
- UnauthorizedAccessException.cs