Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / whidbey / QFE / ndp / fx / src / xsp / System / Web / UI / ChtmlTextWriter.cs / 2 / ChtmlTextWriter.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- // ChtmlTextWriter.cs // namespace System.Web.UI { using System; using System.Collections; using System.Collections.Specialized; using System.IO; using System.Text; using System.Web.UI.WebControls; using System.Web.Util; using System.Globalization; using System.Security.Permissions; ////// [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class ChtmlTextWriter : Html32TextWriter { private Hashtable _recognizedAttributes = new Hashtable(StringComparer.CurrentCultureIgnoreCase); private Hashtable _suppressedAttributes = new Hashtable(StringComparer.CurrentCultureIgnoreCase); private Hashtable _globalSuppressedAttributes = new Hashtable(StringComparer.CurrentCultureIgnoreCase); public ChtmlTextWriter(TextWriter writer) : this(writer, DefaultTabString) { } public ChtmlTextWriter(TextWriter writer, string tabString) : base(writer, tabString) { _globalSuppressedAttributes["onclick"] = true; _globalSuppressedAttributes["ondblclick"] = true; _globalSuppressedAttributes["onmousedown"] = true; _globalSuppressedAttributes["onmouseup"] = true; _globalSuppressedAttributes["onmouseover"] = true; _globalSuppressedAttributes["onmousemove"] = true; _globalSuppressedAttributes["onmouseout"] = true; _globalSuppressedAttributes["onkeypress"] = true; _globalSuppressedAttributes["onkeydown"] = true; _globalSuppressedAttributes["onkeyup"] = true; // Supress certain element attribute pairs that can happen when Html32TextWriter performs the div table // substitution. RemoveRecognizedAttributeInternal("div", "accesskey"); // RemoveRecognizedAttributeInternal("div", "cellspacing"); RemoveRecognizedAttributeInternal("div", "cellpadding"); RemoveRecognizedAttributeInternal("div", "gridlines"); RemoveRecognizedAttributeInternal("div", "rules"); RemoveRecognizedAttributeInternal("span", "cellspacing"); RemoveRecognizedAttributeInternal("span", "cellpadding"); RemoveRecognizedAttributeInternal("span", "gridlines"); RemoveRecognizedAttributeInternal("span", "rules"); } ///[To be supplied.] ////// public virtual void AddRecognizedAttribute(string elementName, string attributeName) { Hashtable eltAttributes = (Hashtable) _recognizedAttributes[elementName]; if (eltAttributes == null) { eltAttributes = new Hashtable(StringComparer.CurrentCultureIgnoreCase); _recognizedAttributes[elementName] = eltAttributes; } eltAttributes.Add(attributeName, true); } ///[To be supplied.] ////// Override to filter out unnecessary attributes /// protected override bool OnAttributeRender(string name, string value, HtmlTextWriterAttribute key) { Hashtable elementRecognizedAttributes = (Hashtable)_recognizedAttributes[TagName]; if (elementRecognizedAttributes != null && elementRecognizedAttributes[name] != null) { return true; } if (_globalSuppressedAttributes[name] != null) { return false; } Hashtable elementSuppressedAttributes = (Hashtable)_suppressedAttributes[TagName]; if (elementSuppressedAttributes != null && elementSuppressedAttributes[name] != null) { return false; } return true; } protected override bool OnStyleAttributeRender(string name,string value, HtmlTextWriterStyle key) { if (key == HtmlTextWriterStyle.TextDecoration) { if (StringUtil.EqualsIgnoreCase("line-through", value)) { return false; } } return base.OnStyleAttributeRender(name, value, key); } protected override bool OnTagRender(string name, HtmlTextWriterTag key) { return base.OnTagRender(name, key) && key != HtmlTextWriterTag.Span; } ////// public virtual void RemoveRecognizedAttribute(string elementName, string attributeName) { RemoveRecognizedAttributeInternal(elementName, attributeName); } private void RemoveRecognizedAttributeInternal(string elementName, string attributeName) { // Since recognized attributes have precedence, we need to do two operations: add this attribute // to the suppressed list, and remove it from the recognized list. Hashtable eltAttributes = (Hashtable) _suppressedAttributes[elementName]; if (eltAttributes == null) { eltAttributes = new Hashtable(StringComparer.CurrentCultureIgnoreCase); _suppressedAttributes[elementName] = eltAttributes; } eltAttributes.Add(attributeName, true); eltAttributes = (Hashtable)_recognizedAttributes[elementName]; if (eltAttributes == null) { eltAttributes = new Hashtable(StringComparer.CurrentCultureIgnoreCase); _recognizedAttributes[elementName] = eltAttributes; } // Note: Hashtable::Remove silently continues if the key does not exist. eltAttributes.Remove(attributeName); } public override void WriteBreak() { Write("[To be supplied.] ///
"); } public override void WriteEncodedText(String text) { if (null == text || text.Length == 0) { return; } int length = text.Length; int start = -1; for(int pos = 0; pos < length; pos++) { int ch = text[pos]; if(ch > 160 && ch < 256) { if(start != -1) { base.WriteEncodedText(text.Substring(start, pos - start)); start = -1; } base.Write(text[pos]); } else { if(start == -1) { start = pos; } } } if(start != -1) { if(start == 0) { base.WriteEncodedText(text); } else { base.WriteEncodedText(text.Substring(start, length - start)); } } } protected Hashtable RecognizedAttributes { get { return _recognizedAttributes; } } protected Hashtable SuppressedAttributes { get { return _suppressedAttributes; } } protected Hashtable GlobalSuppressedAttributes { get { return _globalSuppressedAttributes; } } } } // 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
- ToolStripManager.cs
- SHA1Managed.cs
- PackageFilter.cs
- HtmlTextViewAdapter.cs
- CustomCredentialPolicy.cs
- PrintPreviewDialog.cs
- GeneratedContractType.cs
- BitmapDownload.cs
- ProfileServiceManager.cs
- DetailsViewDesigner.cs
- WebPartCatalogCloseVerb.cs
- DrawingVisualDrawingContext.cs
- DataSourceControlBuilder.cs
- RegexRunner.cs
- ToolStripSplitStackLayout.cs
- Int32RectValueSerializer.cs
- ArgIterator.cs
- LeaseManager.cs
- TranslateTransform3D.cs
- AnnotationHelper.cs
- XmlSchemaFacet.cs
- EventLogger.cs
- DataList.cs
- FillRuleValidation.cs
- Errors.cs
- WebBrowserSiteBase.cs
- SRGSCompiler.cs
- EnumMemberAttribute.cs
- HttpHeaderCollection.cs
- BroadcastEventHelper.cs
- BitmapEffectDrawingContent.cs
- Util.cs
- AutoGeneratedFieldProperties.cs
- NullableDoubleMinMaxAggregationOperator.cs
- HitTestFilterBehavior.cs
- _DomainName.cs
- EnumBuilder.cs
- Delegate.cs
- BamlWriter.cs
- Rect3DConverter.cs
- CodeTypeReference.cs
- RangeValidator.cs
- LazyTextWriterCreator.cs
- KeyFrames.cs
- SQLGuid.cs
- OdbcConnectionString.cs
- HtmlWindow.cs
- PathData.cs
- DLinqTableProvider.cs
- WrappedDispatcherException.cs
- _HeaderInfo.cs
- CompilerTypeWithParams.cs
- SequenceDesigner.xaml.cs
- SelectorAutomationPeer.cs
- XmlTextReaderImplHelpers.cs
- WindowHideOrCloseTracker.cs
- XmlArrayItemAttributes.cs
- ArgumentOutOfRangeException.cs
- EncryptedXml.cs
- GroupItem.cs
- ThemeDictionaryExtension.cs
- FileUtil.cs
- GridViewColumnHeader.cs
- WebPartRestoreVerb.cs
- SafeEventLogWriteHandle.cs
- FileSystemInfo.cs
- DataGridAutoFormatDialog.cs
- ReadWriteSpinLock.cs
- ClientSponsor.cs
- ImageBrush.cs
- SqlMethodAttribute.cs
- ImageButton.cs
- StorageFunctionMapping.cs
- CompositeClientFormatter.cs
- Pair.cs
- DeviceSpecificChoiceCollection.cs
- WebPartRestoreVerb.cs
- DataGridViewComboBoxCell.cs
- Viewport3DVisual.cs
- ActivityLocationReferenceEnvironment.cs
- FileIOPermission.cs
- SoapAttributeOverrides.cs
- MatrixIndependentAnimationStorage.cs
- SqlDataReader.cs
- DataGridViewHeaderCell.cs
- SectionInformation.cs
- OrderablePartitioner.cs
- SByteConverter.cs
- CodeEventReferenceExpression.cs
- DescendentsWalker.cs
- SiteIdentityPermission.cs
- TreeBuilder.cs
- WindowsTokenRoleProvider.cs
- StickyNoteContentControl.cs
- FontSizeConverter.cs
- LeaseManager.cs
- RootDesignerSerializerAttribute.cs
- ResXFileRef.cs
- SqlProviderServices.cs
- ThicknessKeyFrameCollection.cs