mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-24 05:11:16 +00:00
128 lines
3.5 KiB
C++
128 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=2 sw=2 et tw=78: */
|
|
/* 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/. */
|
|
|
|
#ifndef nsHtml5DocumentBuilder_h
|
|
#define nsHtml5DocumentBuilder_h
|
|
|
|
#include "nsContentSink.h"
|
|
#include "nsHtml5DocumentMode.h"
|
|
#include "nsIDocument.h"
|
|
#include "nsIContent.h"
|
|
|
|
typedef nsIContent* nsIContentPtr;
|
|
|
|
enum eHtml5FlushState {
|
|
eNotFlushing = 0, // not flushing
|
|
eInFlush = 1, // the Flush() method is on the call stack
|
|
eInDocUpdate = 2, // inside an update batch on the document
|
|
eNotifying = 3 // flushing pending append notifications
|
|
};
|
|
|
|
class nsHtml5DocumentBuilder : public nsContentSink
|
|
{
|
|
public:
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsHtml5DocumentBuilder,
|
|
nsContentSink)
|
|
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
|
|
inline void HoldElement(already_AddRefed<nsIContent> aContent)
|
|
{
|
|
*(mOwnedElements.AppendElement()) = aContent;
|
|
}
|
|
|
|
nsresult Init(nsIDocument* aDoc, nsIURI* aURI,
|
|
nsISupports* aContainer, nsIChannel* aChannel);
|
|
|
|
// Getters and setters for fields from nsContentSink
|
|
nsIDocument* GetDocument()
|
|
{
|
|
return mDocument;
|
|
}
|
|
|
|
nsNodeInfoManager* GetNodeInfoManager()
|
|
{
|
|
return mNodeInfoManager;
|
|
}
|
|
|
|
/**
|
|
* Marks this parser as broken and tells the stream parser (if any) to
|
|
* terminate.
|
|
*
|
|
* @return aReason for convenience
|
|
*/
|
|
virtual nsresult MarkAsBroken(nsresult aReason);
|
|
|
|
/**
|
|
* Checks if this parser is broken. Returns a non-NS_OK (i.e. non-0)
|
|
* value if broken.
|
|
*/
|
|
inline nsresult IsBroken()
|
|
{
|
|
return mBroken;
|
|
}
|
|
|
|
inline void BeginDocUpdate()
|
|
{
|
|
NS_PRECONDITION(mFlushState == eInFlush, "Tried to double-open update.");
|
|
NS_PRECONDITION(mParser, "Started update without parser.");
|
|
mFlushState = eInDocUpdate;
|
|
mDocument->BeginUpdate(UPDATE_CONTENT_MODEL);
|
|
}
|
|
|
|
inline void EndDocUpdate()
|
|
{
|
|
NS_PRECONDITION(mFlushState != eNotifying, "mFlushState out of sync");
|
|
if (mFlushState == eInDocUpdate) {
|
|
mFlushState = eInFlush;
|
|
mDocument->EndUpdate(UPDATE_CONTENT_MODEL);
|
|
}
|
|
}
|
|
|
|
bool IsInDocUpdate()
|
|
{
|
|
return mFlushState == eInDocUpdate;
|
|
}
|
|
|
|
void SetDocumentCharsetAndSource(nsACString& aCharset, int32_t aCharsetSource);
|
|
|
|
/**
|
|
* Sets up style sheet load / parse
|
|
*/
|
|
void UpdateStyleSheet(nsIContent* aElement);
|
|
|
|
void SetDocumentMode(nsHtml5DocumentMode m);
|
|
|
|
void SetNodeInfoManager(nsNodeInfoManager* aManager)
|
|
{
|
|
mNodeInfoManager = aManager;
|
|
}
|
|
|
|
// nsContentSink methods
|
|
virtual void UpdateChildCounts() override;
|
|
virtual nsresult FlushTags() override;
|
|
|
|
protected:
|
|
|
|
explicit nsHtml5DocumentBuilder(bool aRunsToCompletion);
|
|
virtual ~nsHtml5DocumentBuilder();
|
|
|
|
protected:
|
|
AutoTArray<nsCOMPtr<nsIContent>, 32> mOwnedElements;
|
|
/**
|
|
* Non-NS_OK if this parser should refuse to process any more input.
|
|
* For example, the parser needs to be marked as broken if it drops some
|
|
* input due to a memory allocation failure. In such a case, the whole
|
|
* parser needs to be marked as broken, because some input has been lost
|
|
* and parsing more input could lead to a DOM where pieces of HTML source
|
|
* that weren't supposed to become scripts become scripts.
|
|
*/
|
|
nsresult mBroken;
|
|
eHtml5FlushState mFlushState;
|
|
};
|
|
|
|
#endif // nsHtml5DocumentBuilder_h
|