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/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Framework / System / Windows / Markup / TemplateXamlTreeBuilder.cs / 1 / TemplateXamlTreeBuilder.cs
/****************************************************************************\ * * File: TemplateXamlTreeBuilder.cs * * Purpose: Class that builds a template object from XAML * * History: * 11/22/04: [....] Created * * Copyright (C) 2004 by Microsoft Corporation. All rights reserved. * \***************************************************************************/ using System; using System.Xml; using System.IO; using System.Windows; using System.Text; using System.Collections; using System.ComponentModel; using System.Diagnostics; using System.Reflection; using System.Windows.Threading; using MS.Utility; namespace System.Windows.Markup { ////// XamlTree builder is the TreeBuilder implementation that loads a Tree /// from XAML. /// internal class TemplateXamlTreeBuilder : XamlTreeBuilder { #region Constructors ////// Constructor. Set up associated baml writer and xaml parser to /// create the triumvarate needed for parsing a template block. This is /// the main method to call to create the needed object graph for /// parsing. /// public TemplateXamlTreeBuilder( ParserContext parserContext, XamlReaderHelper tokenReader, ReadWriteStreamManager streamManager, ParserStack bamlReaderStack, ArrayList rootList) { Debug.Assert(null != parserContext, "ParserContext is null"); Debug.Assert(null != tokenReader, "TokenReader is null"); Debug.Assert(null != parserContext.XamlTypeMapper, "ParserContext.XamlTypeMapper is null"); Debug.Assert(null != streamManager, "StreamManager is null"); // Fetch the previous BamlRecordReader XamlTreeBuilderBamlRecordWriter previousBamlRecordWriter = (XamlTreeBuilderBamlRecordWriter)tokenReader.ControllingXamlParser.BamlRecordWriter; BamlRecordReader previousBamlRecordReader = previousBamlRecordWriter.TreeBuilder.RecordReader; XamlParseMode = tokenReader.XamlParseMode; Parser = new TemplateXamlParser(this, tokenReader, parserContext); Parser.StreamManager = streamManager; Parser.XamlParseMode = XamlParseMode; RecordWriter = new XamlTreeBuilderBamlRecordWriter(this, streamManager.WriterStream, parserContext, true /*isSerializer*/ ); // Give Writer to the Parser, since it can't be passed in constructor due to // circular dependency. Parser.BamlRecordWriter = RecordWriter; // The BamlRecordReader needs its own parser context ParserContext readerParserContext = previousBamlRecordReader.ParserContext; RecordReader = new TemplateBamlRecordReader(streamManager.ReaderStream, null, null, readerParserContext, bamlReaderStack, rootList); } #endregion Constructors #region Overrides ////// Forward parsing directive onto xaml parser. /// ////// An array containing the root objects in the XAML stream /// public override object ParseFragment() { // Tell the parser the starting depth Parser.Parse(); // its okay for root to be null if its an empty file or the parse // was stopped. return GetRoot(); } #endregion Overrides ////// Forward the processing of a xaml node to the parser. This is done when there is /// an out-of-band record that needs to be added to the baml stream, such as the /// start of a Template tag. /// internal void ProcessXamlNode(XamlNode xamlNode) { bool cleanup = false; bool done = false; Parser.ProcessXamlNode(xamlNode, ref cleanup, ref done); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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