author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 04 Oct 2010 01:32:07 +0300 | |
changeset 2 | 303757a437d3 |
parent 0 | 4f2f89ce4247 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (C) 2010 Google, Inc. All Rights Reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY |
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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|
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#ifndef HTMLTreeBuilder_h |
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#define HTMLTreeBuilder_h |
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|
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#include "Element.h" |
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#include "FragmentScriptingPermission.h" |
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#include "HTMLConstructionSite.h" |
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#include "HTMLElementStack.h" |
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#include "HTMLFormattingElementList.h" |
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#include "HTMLTokenizer.h" |
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#include <wtf/Noncopyable.h> |
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#include <wtf/OwnPtr.h> |
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#include <wtf/PassOwnPtr.h> |
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#include <wtf/PassRefPtr.h> |
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#include <wtf/RefPtr.h> |
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#include <wtf/unicode/Unicode.h> |
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namespace WebCore { |
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class AtomicHTMLToken; |
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class Document; |
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class DocumentFragment; |
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class Frame; |
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class HTMLToken; |
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class HTMLDocument; |
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class LegacyHTMLTreeBuilder; |
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class Node; |
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class HTMLTreeBuilder : public Noncopyable { |
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public: |
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// FIXME: Replace constructors with create() functions returning PassOwnPtrs |
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HTMLTreeBuilder(HTMLTokenizer*, HTMLDocument*, bool reportErrors); |
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HTMLTreeBuilder(HTMLTokenizer*, DocumentFragment*, FragmentScriptingPermission); |
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~HTMLTreeBuilder(); |
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void setPaused(bool paused) { m_isPaused = paused; } |
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bool isPaused() const { return m_isPaused; } |
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|
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// The token really should be passed as a const& since it's never modified. |
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void constructTreeFromToken(HTMLToken&); |
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// Must be called when parser is paused before calling the parser again. |
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PassRefPtr<Element> takeScriptToProcess(int& scriptStartLine); |
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// Done, close any open tags, etc. |
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void finished(); |
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static HTMLTokenizer::State adjustedLexerState(HTMLTokenizer::State, const AtomicString& tagName, Frame*); |
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// FIXME: This is a dirty, rotten hack to keep HTMLFormControlElement happy |
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// until we stop using the legacy parser. DO NOT CALL THIS METHOD. |
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LegacyHTMLTreeBuilder* legacyTreeBuilder() const { return m_legacyTreeBuilder.get(); } |
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private: |
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class FakeInsertionMode; |
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class ExternalCharacterTokenBuffer; |
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// Represents HTML5 "insertion mode" |
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// http://www.whatwg.org/specs/web-apps/current-work/multipage/parsing.html#insertion-mode |
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enum InsertionMode { |
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InitialMode, |
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BeforeHTMLMode, |
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BeforeHeadMode, |
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InHeadMode, |
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InHeadNoscriptMode, |
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AfterHeadMode, |
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InBodyMode, |
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TextMode, |
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InTableMode, |
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InTableTextMode, |
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InCaptionMode, |
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InColumnGroupMode, |
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InTableBodyMode, |
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InRowMode, |
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InCellMode, |
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InSelectMode, |
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InSelectInTableMode, |
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InForeignContentMode, |
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AfterBodyMode, |
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InFramesetMode, |
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AfterFramesetMode, |
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AfterAfterBodyMode, |
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AfterAfterFramesetMode, |
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}; |
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void passTokenToLegacyParser(HTMLToken&); |
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void processToken(AtomicHTMLToken&); |
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void processDoctypeToken(AtomicHTMLToken&); |
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void processStartTag(AtomicHTMLToken&); |
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void processEndTag(AtomicHTMLToken&); |
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void processComment(AtomicHTMLToken&); |
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void processCharacter(AtomicHTMLToken&); |
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void processEndOfFile(AtomicHTMLToken&); |
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|
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bool processStartTagForInHead(AtomicHTMLToken&); |
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void processStartTagForInBody(AtomicHTMLToken&); |
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void processStartTagForInTable(AtomicHTMLToken&); |
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void processEndTagForInBody(AtomicHTMLToken&); |
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void processEndTagForInTable(AtomicHTMLToken&); |
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void processEndTagForInTableBody(AtomicHTMLToken&); |
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void processEndTagForInRow(AtomicHTMLToken&); |
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void processEndTagForInCell(AtomicHTMLToken&); |
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|
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void processIsindexStartTagForInBody(AtomicHTMLToken&); |
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bool processBodyEndTagForInBody(AtomicHTMLToken&); |
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bool processTableEndTagForInTable(); |
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bool processCaptionEndTagForInCaption(); |
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bool processColgroupEndTagForInColumnGroup(); |
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bool processTrEndTagForInRow(); |
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// FIXME: This function should be inlined into its one call site or it |
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// needs to assert which tokens it can be called with. |
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void processAnyOtherEndTagForInBody(AtomicHTMLToken&); |
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|
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void processCharacterBuffer(ExternalCharacterTokenBuffer&); |
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|
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void processFakeStartTag(const QualifiedName&, PassRefPtr<NamedNodeMap> attributes = 0); |
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void processFakeEndTag(const QualifiedName&); |
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void processFakeCharacters(const String&); |
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void processFakePEndTagIfPInButtonScope(); |
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|
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void processGenericRCDATAStartTag(AtomicHTMLToken&); |
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void processGenericRawTextStartTag(AtomicHTMLToken&); |
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void processScriptStartTag(AtomicHTMLToken&); |
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|
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// Default processing for the different insertion modes. |
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void defaultForInitial(); |
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void defaultForBeforeHTML(); |
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void defaultForBeforeHead(); |
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void defaultForInHead(); |
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void defaultForInHeadNoscript(); |
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void defaultForAfterHead(); |
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void defaultForInTableText(); |
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|
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void processUsingSecondaryInsertionModeAndAdjustInsertionMode(AtomicHTMLToken&); |
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|
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PassRefPtr<NamedNodeMap> attributesForIsindexInput(AtomicHTMLToken&); |
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|
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HTMLElementStack::ElementRecord* furthestBlockForFormattingElement(Element*); |
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void reparentChildren(Element* oldParent, Element* newParent); |
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void callTheAdoptionAgency(AtomicHTMLToken&); |
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|
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void closeTheCell(); |
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|
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template <bool shouldClose(const Element*)> |
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void processCloseWhenNestedTag(AtomicHTMLToken&); |
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|
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bool m_framesetOk; |
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|
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// FIXME: Implement error reporting. |
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void parseError(AtomicHTMLToken&) { } |
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|
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void handleScriptStartTag(); |
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void handleScriptEndTag(Element*, int scriptStartLine); |
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|
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InsertionMode insertionMode() const { return m_insertionMode; } |
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void setInsertionMode(InsertionMode mode) |
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{ |
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m_insertionMode = mode; |
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m_isFakeInsertionMode = false; |
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} |
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bool isFakeInsertionMode() { return m_isFakeInsertionMode; } |
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void setFakeInsertionMode(InsertionMode mode) |
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{ |
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m_insertionMode = mode; |
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m_isFakeInsertionMode = true; |
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} |
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void setSecondaryInsertionMode(InsertionMode); |
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|
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void setInsertionModeAndEnd(InsertionMode, bool foreign); // Helper for resetInsertionModeAppropriately |
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void resetInsertionModeAppropriately(); |
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static bool isScriptingFlagEnabled(Frame* frame); |
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Document* m_document; |
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HTMLConstructionSite m_tree; |
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|
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bool m_reportErrors; |
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bool m_isPaused; |
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bool m_isFakeInsertionMode; |
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// FIXME: InsertionModes should be a separate object to prevent direct |
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// manipulation of these variables. For now, be careful to always use |
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// setInsertionMode and never set m_insertionMode directly. |
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InsertionMode m_insertionMode; |
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InsertionMode m_originalInsertionMode; |
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InsertionMode m_secondaryInsertionMode; |
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// http://www.whatwg.org/specs/web-apps/current-work/multipage/tokenization.html#pending-table-character-tokens |
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Vector<UChar> m_pendingTableCharacters; |
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// HTML5 spec requires that we be able to change the state of the tokenizer |
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// from within parser actions. |
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HTMLTokenizer* m_tokenizer; |
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// We're re-using logic from the old LegacyHTMLTreeBuilder while this class is being written. |
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OwnPtr<LegacyHTMLTreeBuilder> m_legacyTreeBuilder; |
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// These members are intentionally duplicated as the first set is a hack |
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// on top of the legacy parser which will eventually be removed. |
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RefPtr<Element> m_lastScriptElement; // FIXME: Hack for <script> support on top of the old parser. |
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int m_lastScriptElementStartLine; // FIXME: Hack for <script> support on top of the old parser. |
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RefPtr<Element> m_scriptToProcess; // <script> tag which needs processing before resuming the parser. |
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int m_scriptToProcessStartLine; // Starting line number of the script tag needing processing. |
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// FIXME: FragmentScriptingPermission is a HACK for platform/Pasteboard. |
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// FragmentScriptingNotAllowed causes the Parser to remove children |
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// from <script> tags (so javascript doesn't show up in pastes). |
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FragmentScriptingPermission m_fragmentScriptingPermission; |
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bool m_isParsingFragment; |
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}; |
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} |
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#endif |