Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 150 insertions, 0 deletions

diff --git a/Source/WebCore/html/parser/HTMLDocumentParser.h b/Source/WebCore/html/parser/HTMLDocumentParser.h
new file mode 100644
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+++ b/Source/WebCore/html/parser/HTMLDocumentParser.h
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+/*
+ * Copyright (C) 2010 Google, Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef HTMLDocumentParser_h
+#define HTMLDocumentParser_h
+
+#include "CachedResourceClient.h"
+#include "FragmentScriptingPermission.h"
+#include "HTMLInputStream.h"
+#include "HTMLScriptRunnerHost.h"
+#include "HTMLToken.h"
+#include "ScriptableDocumentParser.h"
+#include "SegmentedString.h"
+#include "Timer.h"
+#include <wtf/OwnPtr.h>
+
+namespace WebCore {
+
+class Document;
+class DocumentFragment;
+class HTMLDocument;
+class HTMLParserScheduler;
+class HTMLTokenizer;
+class HTMLScriptRunner;
+class HTMLTreeBuilder;
+class HTMLPreloadScanner;
+class ScriptController;
+class ScriptSourceCode;
+
+class HTMLDocumentParser :  public ScriptableDocumentParser, HTMLScriptRunnerHost, CachedResourceClient {
+public:
+    static PassRefPtr<HTMLDocumentParser> create(HTMLDocument* document, bool reportErrors)
+    {
+        return adoptRef(new HTMLDocumentParser(document, reportErrors));
+    }
+    static PassRefPtr<HTMLDocumentParser> create(DocumentFragment* fragment, Element* contextElement, FragmentScriptingPermission permission)
+    {
+        return adoptRef(new HTMLDocumentParser(fragment, contextElement, permission));
+    }
+
+    virtual ~HTMLDocumentParser();
+
+    // Exposed for HTMLParserScheduler
+    void resumeParsingAfterYield();
+
+    static void parseDocumentFragment(const String&, DocumentFragment*, Element* contextElement, FragmentScriptingPermission = FragmentScriptingAllowed);
+    
+    static bool usePreHTML5ParserQuirks(Document*);
+
+    HTMLTokenizer* tokenizer() const { return m_tokenizer.get(); }
+
+    virtual TextPosition0 textPosition() const;
+    virtual void suspendScheduledTasks();
+    virtual void resumeScheduledTasks();
+
+protected:
+    virtual void insert(const SegmentedString&);
+    virtual void append(const SegmentedString&);
+    virtual void finish();
+
+    HTMLDocumentParser(HTMLDocument*, bool reportErrors);
+    HTMLDocumentParser(DocumentFragment*, Element* contextElement, FragmentScriptingPermission);
+
+    HTMLTreeBuilder* treeBuilder() const { return m_treeBuilder.get(); }
+
+private:
+    // DocumentParser
+    virtual void detach();
+    virtual bool hasInsertionPoint();
+    virtual bool finishWasCalled();
+    virtual bool processingData() const;
+    virtual void prepareToStopParsing();
+    virtual void stopParsing();
+    virtual bool isWaitingForScripts() const;
+    virtual bool isExecutingScript() const;
+    virtual void executeScriptsWaitingForStylesheets();
+    virtual int lineNumber() const;
+
+    // HTMLScriptRunnerHost
+    virtual void watchForLoad(CachedResource*);
+    virtual void stopWatchingForLoad(CachedResource*);
+    virtual bool shouldLoadExternalScriptFromSrc(const AtomicString&);
+    virtual HTMLInputStream& inputStream() { return m_input; }
+
+    // CachedResourceClient
+    virtual void notifyFinished(CachedResource*);
+
+    enum SynchronousMode {
+        AllowYield,
+        ForceSynchronous,
+    };
+    void pumpTokenizer(SynchronousMode);
+    void pumpTokenizerIfPossible(SynchronousMode);
+
+    bool runScriptsForPausedTreeBuilder();
+    void resumeParsingAfterScriptExecution();
+
+    void begin();
+    void attemptToEnd();
+    void endIfDelayed();
+    void attemptToRunDeferredScriptsAndEnd();
+    void end();
+
+    bool isScheduledForResume() const;
+    bool inScriptExecution() const;
+    bool inWrite() const { return m_writeNestingLevel > 0; }
+    bool shouldDelayEnd() const { return inWrite() || isWaitingForScripts() || inScriptExecution() || isScheduledForResume(); }
+
+    ScriptController* script() const;
+
+    HTMLInputStream m_input;
+
+    // We hold m_token here because it might be partially complete.
+    HTMLToken m_token;
+
+    OwnPtr<HTMLTokenizer> m_tokenizer;
+    OwnPtr<HTMLScriptRunner> m_scriptRunner;
+    OwnPtr<HTMLTreeBuilder> m_treeBuilder;
+    OwnPtr<HTMLPreloadScanner> m_preloadScanner;
+    OwnPtr<HTMLParserScheduler> m_parserScheduler;
+
+    bool m_endWasDelayed;
+    unsigned m_writeNestingLevel;
+};
+
+}
+
+#endif