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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#define NS_HTML5_TREE_BUILDER_HANDLE_ARRAY_LENGTH 512
private:
nsHtml5Highlighter* mViewSource;
nsTArray<nsHtml5TreeOperation> mOpQueue;
nsTArray<nsHtml5SpeculativeLoad> mSpeculativeLoadQueue;
nsAHtml5TreeOpSink* mOpSink;
nsAutoArrayPtr<nsIContent*> mHandles;
int32_t mHandlesUsed;
nsTArray<nsAutoArrayPtr<nsIContent*> > mOldHandles;
nsHtml5TreeOpStage* mSpeculativeLoadStage;
nsIContent** mDeepTreeSurrogateParent;
bool mCurrentHtmlScriptIsAsyncOrDefer;
bool mPreventScriptExecution;
#ifdef DEBUG
bool mActive;
#endif
// DocumentModeHandler
/**
* Tree builder uses this to report quirkiness of the document
*/
void documentMode(nsHtml5DocumentMode m);
nsIContent** getDocumentFragmentForTemplate(nsIContent** aTemplate);
/**
* Using nsIContent** instead of nsIContent* is the parser deals with DOM
* nodes in a way that works off the main thread. Non-main-thread code
* can't refcount or otherwise touch nsIContent objects in any way.
* Yet, the off-the-main-thread code needs to have a way to hold onto a
* particular node and repeatedly operate on the same node.
*
* The way this works is that the off-the-main-thread code has an
* nsIContent** for each DOM node and a given nsIContent** is only ever
* actually dereferenced into an actual nsIContent* on the main thread.
* When the off-the-main-thread code requests a new node, it gets an
* nsIContent** immediately and a tree op is enqueued for later allocating
* an actual nsIContent object and writing a pointer to it into the memory
* location pointed to by the nsIContent**.
*
* Since tree ops are in a queue, the node creating tree op will always
* run before tree ops that try to further operate on the node that the
* nsIContent** is a handle to.
*
* On-the-main-thread parts of the parser use the same mechanism in order
* to avoid having to have duplicate code paths for on-the-main-thread and
* off-the-main-thread tree builder instances.)
*/
nsIContent** AllocateContentHandle();
void accumulateCharactersForced(const PRUnichar* aBuf, int32_t aStart, int32_t aLength)
{
accumulateCharacters(aBuf, aStart, aLength);
}
public:
nsHtml5TreeBuilder(nsAHtml5TreeOpSink* aOpSink,
nsHtml5TreeOpStage* aStage);
~nsHtml5TreeBuilder();
void StartPlainTextViewSource(const nsAutoString& aTitle);
void StartPlainText();
void StartPlainTextBody();
bool HasScript();
void SetOpSink(nsAHtml5TreeOpSink* aOpSink) {
mOpSink = aOpSink;
}
void ClearOps() {
mOpQueue.Clear();
}
bool Flush(bool aDiscretionary = false);
void FlushLoads();
void SetDocumentCharset(nsACString& aCharset, int32_t aCharsetSource);
void StreamEnded();
void NeedsCharsetSwitchTo(const nsACString& aEncoding,
int32_t aSource,
int32_t aLineNumber);
void MaybeComplainAboutCharset(const char* aMsgId,
bool aError,
int32_t aLineNumber);
void AddSnapshotToScript(nsAHtml5TreeBuilderState* aSnapshot, int32_t aLine);
void DropHandles();
void SetPreventScriptExecution(bool aPrevent) {
mPreventScriptExecution = aPrevent;
}
void EnableViewSource(nsHtml5Highlighter* aHighlighter);
void errStrayStartTag(nsIAtom* aName);
void errStrayEndTag(nsIAtom* aName);
void errUnclosedElements(int32_t aIndex, nsIAtom* aName);
void errUnclosedElementsImplied(int32_t aIndex, nsIAtom* aName);
void errUnclosedElementsCell(int32_t aIndex);
void errStrayDoctype();
void errAlmostStandardsDoctype();
void errQuirkyDoctype();
void errNonSpaceInTrailer();
void errNonSpaceAfterFrameset();
void errNonSpaceInFrameset();
void errNonSpaceAfterBody();
void errNonSpaceInColgroupInFragment();
void errNonSpaceInNoscriptInHead();
void errFooBetweenHeadAndBody(nsIAtom* aName);
void errStartTagWithoutDoctype();
void errNoSelectInTableScope();
void errStartSelectWhereEndSelectExpected();
void errStartTagWithSelectOpen(nsIAtom* aName);
void errBadStartTagInHead(nsIAtom* aName);
void errImage();
void errIsindex();
void errFooSeenWhenFooOpen(nsIAtom* aName);
void errHeadingWhenHeadingOpen();
void errFramesetStart();
void errNoCellToClose();
void errStartTagInTable(nsIAtom* aName);
void errFormWhenFormOpen();
void errTableSeenWhileTableOpen();
void errStartTagInTableBody(nsIAtom* aName);
void errEndTagSeenWithoutDoctype();
void errEndTagAfterBody();
void errEndTagSeenWithSelectOpen(nsIAtom* aName);
void errGarbageInColgroup();
void errEndTagBr();
void errNoElementToCloseButEndTagSeen(nsIAtom* aName);
void errHtmlStartTagInForeignContext(nsIAtom* aName);
void errTableClosedWhileCaptionOpen();
void errNoTableRowToClose();
void errNonSpaceInTable();
void errUnclosedChildrenInRuby();
void errStartTagSeenWithoutRuby(nsIAtom* aName);
void errSelfClosing();
void errNoCheckUnclosedElementsOnStack();
void errEndTagDidNotMatchCurrentOpenElement(nsIAtom* aName, nsIAtom* aOther);
void errEndTagViolatesNestingRules(nsIAtom* aName);
void errEndWithUnclosedElements(nsIAtom* aName);
void MarkAsBroken();
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