forked from mirrors/gecko-dev
96 lines
3.5 KiB
C++
96 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* 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 nsIHTMLContentSink_h___
|
|
#define nsIHTMLContentSink_h___
|
|
|
|
/**
|
|
* This interface is OBSOLETE and in the process of being REMOVED.
|
|
* Do NOT implement!
|
|
*
|
|
* This file declares the concrete HTMLContentSink class.
|
|
* This class is used during the parsing process as the
|
|
* primary interface between the parser and the content
|
|
* model.
|
|
*
|
|
* After the tokenizer completes, the parser iterates over
|
|
* the known token list. As the parser identifies valid
|
|
* elements, it calls the contentsink interface to notify
|
|
* the content model that a new node or child node is being
|
|
* created and added to the content model.
|
|
*
|
|
* The HTMLContentSink interface assumes 4 underlying
|
|
* containers: HTML, HEAD, BODY and FRAMESET. Before
|
|
* accessing any these, the parser will call the appropriate
|
|
* OpennsIHTMLContentSink method: OpenHTML,OpenHead,OpenBody,OpenFrameSet;
|
|
* likewise, the ClosensIHTMLContentSink version will be called when the
|
|
* parser is done with a given section.
|
|
*
|
|
* IMPORTANT: The parser may Open each container more than
|
|
* once! This is due to the irregular nature of HTML files.
|
|
* For example, it is possible to encounter plain text at
|
|
* the start of an HTML document (that precedes the HTML tag).
|
|
* Such text is treated as if it were part of the body.
|
|
* In such cases, the parser will Open the body, pass the text-
|
|
* node in and then Close the body. The body will likely be
|
|
* re-Opened later when the actual <BODY> tag has been seen.
|
|
*
|
|
* Containers within the body are Opened and Closed
|
|
* using the OpenContainer(...) and CloseContainer(...) calls.
|
|
* It is assumed that the document or contentSink is
|
|
* maintaining its state to manage where new content should
|
|
* be added to the underlying document.
|
|
*
|
|
* NOTE: OpenHTML() and OpenBody() may get called multiple times
|
|
* in the same document. That's fine, and it doesn't mean
|
|
* that we have multiple bodies or HTML's.
|
|
*
|
|
* NOTE: I haven't figured out how sub-documents (non-frames)
|
|
* are going to be handled. Stay tuned.
|
|
*/
|
|
#include "nsIContentSink.h"
|
|
#include "nsHTMLTags.h"
|
|
|
|
#define NS_IHTML_CONTENT_SINK_IID \
|
|
{ \
|
|
0xefc5af86, 0x5cfd, 0x4918, { \
|
|
0x9d, 0xd3, 0x5f, 0x7a, 0xb2, 0x88, 0xb2, 0x68 \
|
|
} \
|
|
}
|
|
|
|
/**
|
|
* This interface is OBSOLETE and in the process of being REMOVED.
|
|
* Do NOT implement!
|
|
*/
|
|
class nsIHTMLContentSink : public nsIContentSink {
|
|
public:
|
|
NS_DECLARE_STATIC_IID_ACCESSOR(NS_IHTML_CONTENT_SINK_IID)
|
|
|
|
enum ElementType { eHTML, eBody };
|
|
|
|
/**
|
|
* This method is used to open a generic container in the sink.
|
|
*
|
|
* @update 4/1/98 gess
|
|
*/
|
|
NS_IMETHOD OpenContainer(ElementType aNodeType) = 0;
|
|
|
|
/**
|
|
* This method gets called by the parser when a close
|
|
* container tag has been consumed and needs to be closed.
|
|
*
|
|
* @param aTag - The tag to be closed.
|
|
*/
|
|
NS_IMETHOD CloseContainer(ElementType aTag) = 0;
|
|
|
|
/**
|
|
* This method returns true if there are more than one
|
|
* pending style sheets, false otherwise.
|
|
*/
|
|
virtual bool WaitForPendingSheets() = 0;
|
|
};
|
|
|
|
NS_DEFINE_STATIC_IID_ACCESSOR(nsIHTMLContentSink, NS_IHTML_CONTENT_SINK_IID)
|
|
|
|
#endif /* nsIHTMLContentSink_h___ */
|