Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / whidbey / QFE / ndp / fx / src / xsp / System / Web / Configuration / BrowserCapabilitiesFactoryBase.cs / 3 / BrowserCapabilitiesFactoryBase.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * Base class for browser capabilities object: just a read-only dictionary * holder that supports Init() * * */ using System.Web.UI; using System.Collections; using System.Collections.Specialized; using System.ComponentModel; using System.Globalization; using System.Security.Permissions; using System.Text; using System.Text.RegularExpressions; using System.Web.Util; namespace System.Web.Configuration { [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class BrowserCapabilitiesFactoryBase { private IDictionary _matchedHeaders; private IDictionary _browserElements; private object _lock = new object(); public BrowserCapabilitiesFactoryBase() { } [EditorBrowsable(EditorBrowsableState.Advanced)] protected IDictionary BrowserElements { get { if (_browserElements == null) lock (_lock) { if (_browserElements == null) { _browserElements = Hashtable.Synchronized(new Hashtable(StringComparer.OrdinalIgnoreCase)); PopulateBrowserElements(_browserElements); } } return _browserElements; } } [EditorBrowsable(EditorBrowsableState.Advanced)] protected virtual void PopulateBrowserElements(IDictionary dictionary) { } internal IDictionary InternalGetMatchedHeaders() { return MatchedHeaders; } internal IDictionary InternalGetBrowserElements() { return BrowserElements; } [EditorBrowsable(EditorBrowsableState.Advanced)] protected IDictionary MatchedHeaders { get { if (_matchedHeaders == null) lock (_lock) { if (_matchedHeaders == null) { _matchedHeaders = Hashtable.Synchronized(new Hashtable(24, StringComparer.OrdinalIgnoreCase)); PopulateMatchedHeaders(_matchedHeaders); } } return _matchedHeaders; } } [EditorBrowsable(EditorBrowsableState.Advanced)] protected virtual void PopulateMatchedHeaders(IDictionary dictionary) { } internal int CompareFilters(string filter1, string filter2) { bool isFilter1DefaultFilter = String.IsNullOrEmpty(filter1); bool isFilter2DefaultFilter = String.IsNullOrEmpty(filter2); IDictionary browsers = BrowserElements; bool filter1Exists = (browsers.Contains(filter1)) || isFilter1DefaultFilter; bool filter2Exists = (browsers.Contains(filter2)) || isFilter2DefaultFilter; if (!filter1Exists) { if (!filter2Exists) { return 0; } else { return -1; } } else { if (!filter2Exists) { return 1; } } if (isFilter1DefaultFilter && !isFilter2DefaultFilter) { return 1; } if (isFilter2DefaultFilter && !isFilter1DefaultFilter) { return -1; } if (isFilter1DefaultFilter && isFilter2DefaultFilter) { return 0; } int filter1Depth = (int)((Triplet)BrowserElements[filter1]).Third; int filter2Depth = (int)((Triplet)BrowserElements[filter2]).Third; return filter2Depth - filter1Depth; } public virtual void ConfigureBrowserCapabilities(NameValueCollection headers, HttpBrowserCapabilities browserCaps) { } // CodeGenerator will override this function to declare custom browser capabilities public virtual void ConfigureCustomCapabilities(NameValueCollection headers, HttpBrowserCapabilities browserCaps) { } internal static string GetBrowserCapKey(IDictionary headers, HttpRequest request) { StringBuilder sb = new StringBuilder(); foreach(String key in headers.Keys) { if (key.Length == 0) { sb.Append(HttpCapabilitiesEvaluator.GetUserAgent(request)); } else { sb.Append(request.Headers[key]); } sb.Append("\n"); } return sb.ToString(); } internal HttpBrowserCapabilities GetHttpBrowserCapabilities(HttpRequest request) { if (request == null) throw new ArgumentNullException("request"); NameValueCollection headers = request.Headers; HttpBrowserCapabilities browserCaps = new HttpBrowserCapabilities(); Hashtable values = new Hashtable(180, StringComparer.OrdinalIgnoreCase); values[String.Empty] = HttpCapabilitiesEvaluator.GetUserAgent(request); browserCaps.Capabilities = values; ConfigureBrowserCapabilities(headers, browserCaps); ConfigureCustomCapabilities(headers, browserCaps); return browserCaps; } protected bool IsBrowserUnknown(HttpCapabilitiesBase browserCaps) { // We want to ignore the "Default" node, which will also be matched. if(browserCaps.Browsers == null || browserCaps.Browsers.Count <= 1) { return true; } return false; } } } // 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
- GradientStopCollection.cs
- CodeAssignStatement.cs
- DataGridViewRowEventArgs.cs
- TextWriterTraceListener.cs
- UTF32Encoding.cs
- DataObjectMethodAttribute.cs
- TcpServerChannel.cs
- QueryAccessibilityHelpEvent.cs
- Convert.cs
- ChtmlTextWriter.cs
- FileDialogPermission.cs
- Win32PrintDialog.cs
- PointAnimationBase.cs
- EmptyImpersonationContext.cs
- TemplateParser.cs
- SafeFileMapViewHandle.cs
- AppLevelCompilationSectionCache.cs
- Crypto.cs
- TableItemStyle.cs
- LinkDesigner.cs
- SubMenuStyleCollection.cs
- GZipDecoder.cs
- DataGridViewRowCollection.cs
- UriScheme.cs
- VersionedStreamOwner.cs
- PointUtil.cs
- TabPanel.cs
- XPathMessageFilterElementComparer.cs
- BuildProvidersCompiler.cs
- WindowsAuthenticationEventArgs.cs
- HttpEncoder.cs
- FigureParaClient.cs
- DataGridViewRowsAddedEventArgs.cs
- XmlSchemaAnyAttribute.cs
- CryptoApi.cs
- HtmlInputCheckBox.cs
- DataGridClipboardHelper.cs
- OletxResourceManager.cs
- SoapObjectReader.cs
- PackUriHelper.cs
- ContractNamespaceAttribute.cs
- CodeDomSerializerException.cs
- NavigationPropertyEmitter.cs
- ReadOnlyDataSource.cs
- EventOpcode.cs
- ByValueEqualityComparer.cs
- BufferedStream.cs
- UserPreference.cs
- Label.cs
- BaseCollection.cs
- selecteditemcollection.cs
- SqlWorkflowInstanceStoreLock.cs
- GuidelineCollection.cs
- StringKeyFrameCollection.cs
- DataGridViewRowDividerDoubleClickEventArgs.cs
- CryptoKeySecurity.cs
- SystemColors.cs
- OracleTransaction.cs
- NativeMethods.cs
- FontStyles.cs
- OutputCacheModule.cs
- BaseProcessProtocolHandler.cs
- HighlightComponent.cs
- SecureStringHasher.cs
- NamespaceQuery.cs
- QuestionEventArgs.cs
- ZipArchive.cs
- DocumentViewerHelper.cs
- ProcessHostMapPath.cs
- DrawingGroup.cs
- IApplicationTrustManager.cs
- X509RecipientCertificateServiceElement.cs
- XDeferredAxisSource.cs
- SmiEventSink.cs
- ThreadAbortException.cs
- MenuCommandsChangedEventArgs.cs
- Repeater.cs
- TextSpanModifier.cs
- DataServiceQuery.cs
- ListItemCollection.cs
- RowToFieldTransformer.cs
- ActiveXSite.cs
- InstancePersistenceCommand.cs
- returneventsaver.cs
- Vector3DCollectionConverter.cs
- XPathDocumentIterator.cs
- XmlMapping.cs
- CalendarBlackoutDatesCollection.cs
- Events.cs
- StateChangeEvent.cs
- AppDomainManager.cs
- GeometryGroup.cs
- ExceptionRoutedEventArgs.cs
- Executor.cs
- MsmqDecodeHelper.cs
- MultipartContentParser.cs
- ExceptionHandlerDesigner.cs
- FormatPage.cs
- ResourceDefaultValueAttribute.cs
- SizeAnimation.cs