This commit is contained in:
rickg 1998-06-23 01:34:25 +00:00
Родитель d96642568c
Коммит 7c82c6b547
14 изменённых файлов: 62 добавлений и 1286 удалений

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@ -23,6 +23,7 @@
#include "nsHTMLDocument.h"
#include "nsIPresShell.h"
#include "nsIPresContext.h"
#include "nsIViewManager.h"
#include "nsHTMLTokens.h"
#include "nsCRT.h"
#include "prtime.h"
@ -132,7 +133,7 @@ public:
virtual PRBool AddLeaf(const nsIParserNode& aNode);
virtual void WillBuildModel(void);
virtual void DidBuildModel(void);
virtual void DidBuildModel(PRInt32 aQualityLevel);
virtual void WillInterrupt(void);
virtual void WillResume(void);
@ -1367,16 +1368,31 @@ HTMLContentSink::WillBuildModel(void)
StartLayout();
}
/**
* This method gets called when the parser concludes the process
* of building the content model via the content sink.
*
* @update 5/7/98 gess
* @param aQualityLevel describes how well formed the doc was.
* 0=GOOD; 1=FAIR; 2=POOR;
* @update 6/21/98 gess
*/
void
HTMLContentSink::DidBuildModel(void)
{
void HTMLContentSink::DidBuildModel(PRInt32 aQualityLevel) {
PR_LogPrint("DidBuildModel");
PRInt32 i, ns = mDocument->GetNumberOfShells();
for (i = 0; i < ns; i++) {
nsIPresShell* shell = mDocument->GetShellAt(i);
if (nsnull != shell) {
nsIViewManager* vm = shell->GetViewManager();
if(vm) {
vm->SetQuality(nsContentQuality(aQualityLevel));
}
NS_RELEASE(vm);
NS_RELEASE(shell);
}
}
ReflowNewContent();
mDocument->EndLoad();
}
@ -1404,6 +1420,7 @@ HTMLContentSink::WillResume(void)
{
}
//----------------------------------------------------------------------
nsresult NS_NewHTMLContentSink(nsIHTMLContentSink** aInstancePtrResult,

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@ -301,7 +301,7 @@ PRInt32 CNavDTD::DidBuildModel(PRInt32 anErrorCode){
CloseContainersTo(0,eHTMLTag_unknown,PR_FALSE);
}
if(mSink) {
mSink->DidBuildModel();
mSink->DidBuildModel(1);
}
return result;

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@ -303,7 +303,7 @@ PRInt32 COtherDTD::DidBuildModel(PRInt32 anErrorCode){
CloseContainersTo(0,eHTMLTag_unknown,PR_FALSE);
}
if(mSink) {
mSink->DidBuildModel();
mSink->DidBuildModel(0);
}
return result;

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@ -1,467 +0,0 @@
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "nsHTMLContentSink.h"
#include "nsHTMLTokens.h"
#include "nsParserTypes.h"
#include "prtypes.h"
#include <iostream.h>
#define VERBOSE_DEBUG
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kIContentSinkIID, NS_ICONTENTSINK_IID);
static NS_DEFINE_IID(kIHTMLContentSinkIID, NS_IHTMLCONTENTSINK_IID);
static NS_DEFINE_IID(kClassIID, NS_HTMLCONTENTSINK_IID);
/**
* "Fakey" factory method used to create an instance of
* this class.
*
* @updated gess 3/25/98
* @param
* @return
*/
nsresult NS_NewHTMLContentSink(nsIContentSink** aInstancePtrResult)
{
nsHTMLContentSink *it = new nsHTMLContentSink();
if (it == 0) {
return NS_ERROR_OUT_OF_MEMORY;
}
return it->QueryInterface(kClassIID, (void **) aInstancePtrResult);
}
/**
* Default constructor
*
* @updated gess 3/25/98
* @param
* @return
*/
nsHTMLContentSink::nsHTMLContentSink() : nsIHTMLContentSink(), mTitle("") {
mNodeStackPos=0;
memset(mNodeStack,0,sizeof(mNodeStack));
}
/**
* Default destructor. Probably not a good idea to call
* this if you created your instance via the factor method.
*
* @updated gess 3/25/98
* @param
* @return
*/
nsHTMLContentSink::~nsHTMLContentSink() {
}
#ifdef VERBOSE_DEBUG
static void DebugDump(const char* str1,const nsString& str2,PRInt32 tabs) {
for(PRInt32 i=0;i<tabs;i++)
cout << " "; //add some tabbing to debug output...
char* cp = str2.ToNewCString();
cout << str1 << cp << ">" << endl;
delete cp;
}
#endif
/**
* This bit of magic creates the addref and release
* methods for this class.
*
* @updated gess 3/25/98
* @param
* @return
*/
NS_IMPL_ADDREF(nsHTMLContentSink)
NS_IMPL_RELEASE(nsHTMLContentSink)
/**
* Standard XPCOM query interface implementation. I used
* my own version because this class is a subclass of both
* ISupports and IContentSink. Perhaps there's a macro for
* this, but I didn't see it.
*
* @updated gess 3/25/98
* @param
* @return
*/
nsresult nsHTMLContentSink::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if(aIID.Equals(kISupportsIID)) { //do IUnknown...
*aInstancePtr = (nsIContentSink*)(this);
}
else if(aIID.Equals(kIContentSinkIID)) { //do nsIContentSink base class...
*aInstancePtr = (nsIContentSink*)(this);
}
else if(aIID.Equals(kIHTMLContentSinkIID)) { //do nsIHTMLContentSink base class...
*aInstancePtr = (nsIHTMLContentSink*)(this);
}
else if(aIID.Equals(kClassIID)) { //do this class...
*aInstancePtr = (nsHTMLContentSink*)(this);
}
else {
*aInstancePtr=0;
return NS_NOINTERFACE;
}
((nsISupports*) *aInstancePtr)->AddRef();
return NS_OK;
}
/**
* This method gets called by the parser when a <HTML>
* tag has been consumed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::OpenHTML(const nsIParserNode& aNode) {
PRInt32 result=kNoError;
mNodeStack[mNodeStackPos++]=(eHTMLTags)aNode.GetNodeType();
#ifdef VERBOSE_DEBUG
DebugDump("<",aNode.GetText(),(mNodeStackPos-1)*2);
#endif
return result;
}
/**
* This method gets called by the parser when a </HTML>
* tag has been consumed.
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::CloseHTML(const nsIParserNode& aNode){
NS_PRECONDITION(mNodeStackPos > 0, "node stack empty");
PRInt32 result=kNoError;
mNodeStack[--mNodeStackPos]=eHTMLTag_unknown;
#ifdef VERBOSE_DEBUG
DebugDump("</",aNode.GetText(),(mNodeStackPos-1)*2);
#endif
return result;
}
/**
* This method gets called by the parser <i>any time</i>
* head data gets consumed by the parser. Currently, that
* list includes <META>, <ISINDEX>, <LINK>, <SCRIPT>,
* <STYLE>, <TITLE>.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::OpenHead(const nsIParserNode& aNode) {
PRInt32 result=kNoError;
mNodeStack[mNodeStackPos++]=(eHTMLTags)aNode.GetNodeType();
#ifdef VERBOSE_DEBUG
DebugDump("<",aNode.GetText(),(mNodeStackPos-1)*2);
#endif
return result;
}
/**
* This method gets called by the parser when a </HEAD>
* tag has been seen (either implicitly or explicitly).
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::CloseHead(const nsIParserNode& aNode) {
NS_PRECONDITION(mNodeStackPos > 0, "node stack empty");
PRInt32 result=kNoError;
mNodeStack[--mNodeStackPos]=eHTMLTag_unknown;
#ifdef VERBOSE_DEBUG
DebugDump("</",aNode.GetText(),(mNodeStackPos)*2);
#endif
return result;
}
/**
* This gets called by the parser when a <TITLE> tag
* gets consumed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::SetTitle(const nsString& aValue){
PRInt32 result=kNoError;
mTitle=aValue;
return result;
}
/**
* This method gets called by the parser when a <BODY>
* tag has been consumed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::OpenBody(const nsIParserNode& aNode) {
PRInt32 result=kNoError;
mNodeStack[mNodeStackPos++]=(eHTMLTags)aNode.GetNodeType();
#ifdef VERBOSE_DEBUG
DebugDump("<",aNode.GetText(),(mNodeStackPos-1)*2);
#endif
return result;
}
/**
* This method gets called by the parser when a </BODY>
* tag has been consumed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::CloseBody(const nsIParserNode& aNode){
NS_PRECONDITION(mNodeStackPos > 0, "node stack empty");
PRInt32 result=kNoError;
mNodeStack[--mNodeStackPos]=eHTMLTag_unknown;
#ifdef VERBOSE_DEBUG
DebugDump("</",aNode.GetText(),(mNodeStackPos)*2);
#endif
return result;
}
/**
* This method gets called by the parser when a <FORM>
* tag has been consumed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::OpenForm(const nsIParserNode& aNode) {
PRInt32 result=kNoError;
mNodeStack[mNodeStackPos++]=(eHTMLTags)aNode.GetNodeType();
#ifdef VERBOSE_DEBUG
DebugDump("<",aNode.GetText(),(mNodeStackPos-1)*2);
#endif
return result;
}
/**
* This method gets called by the parser when a </FORM>
* tag has been consumed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::CloseForm(const nsIParserNode& aNode){
NS_PRECONDITION(mNodeStackPos > 0, "node stack empty");
PRInt32 result=kNoError;
mNodeStack[--mNodeStackPos]=eHTMLTag_unknown;
#ifdef VERBOSE_DEBUG
DebugDump("</",aNode.GetText(),(mNodeStackPos)*2);
#endif
return result;
}
/**
* This method gets called by the parser when a <FRAMESET>
* tag has been consumed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::OpenFrameset(const nsIParserNode& aNode) {
PRInt32 result=kNoError;
mNodeStack[mNodeStackPos++]=(eHTMLTags)aNode.GetNodeType();
#ifdef VERBOSE_DEBUG
DebugDump("<",aNode.GetText(),(mNodeStackPos-1)*2);
#endif
return result;
}
/**
* This method gets called by the parser when a </FRAMESET>
* tag has been consumed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::CloseFrameset(const nsIParserNode& aNode){
NS_PRECONDITION(mNodeStackPos > 0, "node stack empty");
PRInt32 result=kNoError;
mNodeStack[--mNodeStackPos]=eHTMLTag_unknown;
#ifdef VERBOSE_DEBUG
DebugDump("</",aNode.GetText(),(mNodeStackPos)*2);
#endif
return result;
}
/**
* This method gets called by the parser when any general
* type of container has been consumed and needs to be
* opened. This includes things like <OL>, <Hn>, etc...
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::OpenContainer(const nsIParserNode& aNode){
PRInt32 result=kNoError;
mNodeStack[mNodeStackPos++]=(eHTMLTags)aNode.GetNodeType();
#ifdef VERBOSE_DEBUG
DebugDump("<",aNode.GetText(),(mNodeStackPos-1)*2);
#endif
return result;
}
/**
* This method gets called by the parser when a close
* container tag has been consumed and needs to be closed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::CloseContainer(const nsIParserNode& aNode){
NS_PRECONDITION(mNodeStackPos > 0, "node stack empty");
PRInt32 result=kNoError;
mNodeStack[--mNodeStackPos]=eHTMLTag_unknown;
#ifdef VERBOSE_DEBUG
DebugDump("</",aNode.GetText(),(mNodeStackPos)*2);
#endif
return result;
}
/**
* This causes the topmost container to be closed,
* regardless of its type.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::CloseTopmostContainer(){
NS_PRECONDITION(mNodeStackPos > 0, "node stack empty");
PRInt32 result=kNoError;
mNodeStack[mNodeStackPos--]=eHTMLTag_unknown;
return result;
}
/**
* This gets called by the parser when you want to add
* a leaf node to the current container in the content
* model.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::AddLeaf(const nsIParserNode& aNode){
PRInt32 result=kNoError;
#ifdef VERBOSE_DEBUG
DebugDump("<",aNode.GetText(),(mNodeStackPos)*2);
#endif
return result;
}
/**
* This method gets called when the parser begins the process
* of building the content model via the content sink.
*
* @update 5/7/98 gess
*/
void nsHTMLContentSink::WillBuildModel(void){
}
/**
* This method gets called when the parser concludes the process
* of building the content model via the content sink.
*
* @update 5/7/98 gess
*/
void nsHTMLContentSink::DidBuildModel(void){
}
/**
* This method gets called when the parser gets i/o blocked,
* and wants to notify the sink that it may be a while before
* more data is available.
*
* @update 5/7/98 gess
*/
void nsHTMLContentSink::WillInterrupt(void) {
}
/**
* This method gets called when the parser i/o gets unblocked,
* and we're about to start dumping content again to the sink.
*
* @update 5/7/98 gess
*/
void nsHTMLContentSink::WillResume(void) {
}

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@ -1,167 +0,0 @@
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/**
* MODULE NOTES:
* @update gess 4/1/98
*
* 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
* OpenXXX method: OpenHTML,OpenHead,OpenBody,OpenFrameSet;
* likewise, the CloseXXX 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 preceeds 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.
*/
#ifndef NS_HTMLCONTENTSINK
#define NS_HTMLCONTENTSINK
#include "nsIParserNode.h"
#include "nsIHTMLContentSink.h"
#include "nsIContentSink.h"
#include "nsString.h"
#define NS_HTMLCONTENTSINK_IID \
{0x803f8110, 0xc287, 0x11d1, \
{0x80, 0x22, 0x00, 0x60, 0x08, 0x14, 0x98, 0x89}}
class nsHTMLContentSink : public nsIHTMLContentSink {
public:
enum eSection {eNone=0,eHTML,eHead,eBody,eContainer};
nsHTMLContentSink();
~nsHTMLContentSink();
NS_DECL_ISUPPORTS
PRBool SetTitle(const nsString& aValue);
// Called when Opening or closing the main HTML container
PRInt32 OpenHTML(const nsIParserNode& aNode);
PRInt32 CloseHTML(const nsIParserNode& aNode);
// Called when Opening or closing the main HEAD container
PRInt32 OpenHead(const nsIParserNode& aNode);
PRInt32 CloseHead(const nsIParserNode& aNode);
// Called when Opening or closing the main BODY container
PRInt32 OpenBody(const nsIParserNode& aNode);
PRInt32 CloseBody(const nsIParserNode& aNode);
// Called when Opening or closing FORM containers
PRInt32 OpenForm(const nsIParserNode& aNode);
PRInt32 CloseForm(const nsIParserNode& aNode);
// Called when Opening or closing the main FRAMESET container
PRInt32 OpenFrameset(const nsIParserNode& aNode);
PRInt32 CloseFrameset(const nsIParserNode& aNode);
// Called when Opening or closing a general container
// This includes: OL,UL,DIR,SPAN,TABLE,H[1..6],etc.
// Until proven otherwise, I also plan to toss STYLE,
// FRAME, SCRIPT, etc. here too!
virtual PRInt32 OpenContainer(const nsIParserNode& aNode);
virtual PRInt32 CloseContainer(const nsIParserNode& aNode);
virtual PRInt32 CloseTopmostContainer();
virtual PRInt32 AddLeaf(const nsIParserNode& aNode);
/**
* This method gets called when the parser begins the process
* of building the content model via the content sink.
*
* @update 5/7/98 gess
*/
virtual void WillBuildModel(void);
/**
* This method gets called when the parser concludes the process
* of building the content model via the content sink.
*
* @update 5/7/98 gess
*/
virtual void DidBuildModel(void);
/**
* This method gets called when the parser gets i/o blocked,
* and wants to notify the sink that it may be a while before
* more data is available.
*
* @update 5/7/98 gess
*/
virtual void WillInterrupt(void);
/**
* This method gets called when the parser i/o gets unblocked,
* and we're about to start dumping content again to the sink.
*
* @update 5/7/98 gess
*/
virtual void WillResume(void);
PRInt32 NodeAt(PRInt32 aPos) {return mNodeStack[aPos];}
PRInt32 TopNode() {return mNodeStack[mNodeStackPos-1];}
PRInt32 GetStackPos() {return mNodeStackPos;}
protected:
PRInt32 mNodeStack[100];
PRInt32 mNodeStackPos;
nsString mTitle;
};
#endif

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@ -92,9 +92,11 @@ class nsIContentSink : public nsISupports {
* This method gets called when the parser concludes the process
* of building the content model via the content sink.
*
* @param aQualityLevel describes how well formed the doc was.
* 0=GOOD; 1=FAIR; 2=POOR;
* @update 5/7/98 gess
*/
virtual void DidBuildModel(void)=0;
virtual void DidBuildModel(PRInt32 aQualityLevel)=0;
/**
* This method gets called when the parser gets i/o blocked,

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@ -226,9 +226,11 @@ class nsIHTMLContentSink : public nsIContentSink {
* This method gets called when the parser concludes the process
* of building the content model via the content sink.
*
* @param aQualityLevel describes how well formed the doc was.
* 0=GOOD; 1=FAIR; 2=POOR;
* @update 5/7/98 gess
*/
virtual void DidBuildModel(void)=0;
virtual void DidBuildModel(PRInt32 aQualityLevel)=0;
/**
* This method gets called when the parser gets i/o blocked,
@ -246,6 +248,7 @@ class nsIHTMLContentSink : public nsIContentSink {
* @update 5/7/98 gess
*/
virtual void WillResume(void)=0;
};

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@ -23,6 +23,7 @@
#include "nsHTMLDocument.h"
#include "nsIPresShell.h"
#include "nsIPresContext.h"
#include "nsIViewManager.h"
#include "nsHTMLTokens.h"
#include "nsCRT.h"
#include "prtime.h"
@ -132,7 +133,7 @@ public:
virtual PRBool AddLeaf(const nsIParserNode& aNode);
virtual void WillBuildModel(void);
virtual void DidBuildModel(void);
virtual void DidBuildModel(PRInt32 aQualityLevel);
virtual void WillInterrupt(void);
virtual void WillResume(void);
@ -1367,16 +1368,31 @@ HTMLContentSink::WillBuildModel(void)
StartLayout();
}
/**
* This method gets called when the parser concludes the process
* of building the content model via the content sink.
*
* @update 5/7/98 gess
* @param aQualityLevel describes how well formed the doc was.
* 0=GOOD; 1=FAIR; 2=POOR;
* @update 6/21/98 gess
*/
void
HTMLContentSink::DidBuildModel(void)
{
void HTMLContentSink::DidBuildModel(PRInt32 aQualityLevel) {
PR_LogPrint("DidBuildModel");
PRInt32 i, ns = mDocument->GetNumberOfShells();
for (i = 0; i < ns; i++) {
nsIPresShell* shell = mDocument->GetShellAt(i);
if (nsnull != shell) {
nsIViewManager* vm = shell->GetViewManager();
if(vm) {
vm->SetQuality(nsContentQuality(aQualityLevel));
}
NS_RELEASE(vm);
NS_RELEASE(shell);
}
}
ReflowNewContent();
mDocument->EndLoad();
}
@ -1404,6 +1420,7 @@ HTMLContentSink::WillResume(void)
{
}
//----------------------------------------------------------------------
nsresult NS_NewHTMLContentSink(nsIHTMLContentSink** aInstancePtrResult,

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@ -301,7 +301,7 @@ PRInt32 CNavDTD::DidBuildModel(PRInt32 anErrorCode){
CloseContainersTo(0,eHTMLTag_unknown,PR_FALSE);
}
if(mSink) {
mSink->DidBuildModel();
mSink->DidBuildModel(1);
}
return result;

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@ -303,7 +303,7 @@ PRInt32 COtherDTD::DidBuildModel(PRInt32 anErrorCode){
CloseContainersTo(0,eHTMLTag_unknown,PR_FALSE);
}
if(mSink) {
mSink->DidBuildModel();
mSink->DidBuildModel(0);
}
return result;

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@ -1,467 +0,0 @@
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "nsHTMLContentSink.h"
#include "nsHTMLTokens.h"
#include "nsParserTypes.h"
#include "prtypes.h"
#include <iostream.h>
#define VERBOSE_DEBUG
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kIContentSinkIID, NS_ICONTENTSINK_IID);
static NS_DEFINE_IID(kIHTMLContentSinkIID, NS_IHTMLCONTENTSINK_IID);
static NS_DEFINE_IID(kClassIID, NS_HTMLCONTENTSINK_IID);
/**
* "Fakey" factory method used to create an instance of
* this class.
*
* @updated gess 3/25/98
* @param
* @return
*/
nsresult NS_NewHTMLContentSink(nsIContentSink** aInstancePtrResult)
{
nsHTMLContentSink *it = new nsHTMLContentSink();
if (it == 0) {
return NS_ERROR_OUT_OF_MEMORY;
}
return it->QueryInterface(kClassIID, (void **) aInstancePtrResult);
}
/**
* Default constructor
*
* @updated gess 3/25/98
* @param
* @return
*/
nsHTMLContentSink::nsHTMLContentSink() : nsIHTMLContentSink(), mTitle("") {
mNodeStackPos=0;
memset(mNodeStack,0,sizeof(mNodeStack));
}
/**
* Default destructor. Probably not a good idea to call
* this if you created your instance via the factor method.
*
* @updated gess 3/25/98
* @param
* @return
*/
nsHTMLContentSink::~nsHTMLContentSink() {
}
#ifdef VERBOSE_DEBUG
static void DebugDump(const char* str1,const nsString& str2,PRInt32 tabs) {
for(PRInt32 i=0;i<tabs;i++)
cout << " "; //add some tabbing to debug output...
char* cp = str2.ToNewCString();
cout << str1 << cp << ">" << endl;
delete cp;
}
#endif
/**
* This bit of magic creates the addref and release
* methods for this class.
*
* @updated gess 3/25/98
* @param
* @return
*/
NS_IMPL_ADDREF(nsHTMLContentSink)
NS_IMPL_RELEASE(nsHTMLContentSink)
/**
* Standard XPCOM query interface implementation. I used
* my own version because this class is a subclass of both
* ISupports and IContentSink. Perhaps there's a macro for
* this, but I didn't see it.
*
* @updated gess 3/25/98
* @param
* @return
*/
nsresult nsHTMLContentSink::QueryInterface(const nsIID& aIID, void** aInstancePtr)
{
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if(aIID.Equals(kISupportsIID)) { //do IUnknown...
*aInstancePtr = (nsIContentSink*)(this);
}
else if(aIID.Equals(kIContentSinkIID)) { //do nsIContentSink base class...
*aInstancePtr = (nsIContentSink*)(this);
}
else if(aIID.Equals(kIHTMLContentSinkIID)) { //do nsIHTMLContentSink base class...
*aInstancePtr = (nsIHTMLContentSink*)(this);
}
else if(aIID.Equals(kClassIID)) { //do this class...
*aInstancePtr = (nsHTMLContentSink*)(this);
}
else {
*aInstancePtr=0;
return NS_NOINTERFACE;
}
((nsISupports*) *aInstancePtr)->AddRef();
return NS_OK;
}
/**
* This method gets called by the parser when a <HTML>
* tag has been consumed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::OpenHTML(const nsIParserNode& aNode) {
PRInt32 result=kNoError;
mNodeStack[mNodeStackPos++]=(eHTMLTags)aNode.GetNodeType();
#ifdef VERBOSE_DEBUG
DebugDump("<",aNode.GetText(),(mNodeStackPos-1)*2);
#endif
return result;
}
/**
* This method gets called by the parser when a </HTML>
* tag has been consumed.
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::CloseHTML(const nsIParserNode& aNode){
NS_PRECONDITION(mNodeStackPos > 0, "node stack empty");
PRInt32 result=kNoError;
mNodeStack[--mNodeStackPos]=eHTMLTag_unknown;
#ifdef VERBOSE_DEBUG
DebugDump("</",aNode.GetText(),(mNodeStackPos-1)*2);
#endif
return result;
}
/**
* This method gets called by the parser <i>any time</i>
* head data gets consumed by the parser. Currently, that
* list includes <META>, <ISINDEX>, <LINK>, <SCRIPT>,
* <STYLE>, <TITLE>.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::OpenHead(const nsIParserNode& aNode) {
PRInt32 result=kNoError;
mNodeStack[mNodeStackPos++]=(eHTMLTags)aNode.GetNodeType();
#ifdef VERBOSE_DEBUG
DebugDump("<",aNode.GetText(),(mNodeStackPos-1)*2);
#endif
return result;
}
/**
* This method gets called by the parser when a </HEAD>
* tag has been seen (either implicitly or explicitly).
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::CloseHead(const nsIParserNode& aNode) {
NS_PRECONDITION(mNodeStackPos > 0, "node stack empty");
PRInt32 result=kNoError;
mNodeStack[--mNodeStackPos]=eHTMLTag_unknown;
#ifdef VERBOSE_DEBUG
DebugDump("</",aNode.GetText(),(mNodeStackPos)*2);
#endif
return result;
}
/**
* This gets called by the parser when a <TITLE> tag
* gets consumed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::SetTitle(const nsString& aValue){
PRInt32 result=kNoError;
mTitle=aValue;
return result;
}
/**
* This method gets called by the parser when a <BODY>
* tag has been consumed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::OpenBody(const nsIParserNode& aNode) {
PRInt32 result=kNoError;
mNodeStack[mNodeStackPos++]=(eHTMLTags)aNode.GetNodeType();
#ifdef VERBOSE_DEBUG
DebugDump("<",aNode.GetText(),(mNodeStackPos-1)*2);
#endif
return result;
}
/**
* This method gets called by the parser when a </BODY>
* tag has been consumed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::CloseBody(const nsIParserNode& aNode){
NS_PRECONDITION(mNodeStackPos > 0, "node stack empty");
PRInt32 result=kNoError;
mNodeStack[--mNodeStackPos]=eHTMLTag_unknown;
#ifdef VERBOSE_DEBUG
DebugDump("</",aNode.GetText(),(mNodeStackPos)*2);
#endif
return result;
}
/**
* This method gets called by the parser when a <FORM>
* tag has been consumed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::OpenForm(const nsIParserNode& aNode) {
PRInt32 result=kNoError;
mNodeStack[mNodeStackPos++]=(eHTMLTags)aNode.GetNodeType();
#ifdef VERBOSE_DEBUG
DebugDump("<",aNode.GetText(),(mNodeStackPos-1)*2);
#endif
return result;
}
/**
* This method gets called by the parser when a </FORM>
* tag has been consumed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::CloseForm(const nsIParserNode& aNode){
NS_PRECONDITION(mNodeStackPos > 0, "node stack empty");
PRInt32 result=kNoError;
mNodeStack[--mNodeStackPos]=eHTMLTag_unknown;
#ifdef VERBOSE_DEBUG
DebugDump("</",aNode.GetText(),(mNodeStackPos)*2);
#endif
return result;
}
/**
* This method gets called by the parser when a <FRAMESET>
* tag has been consumed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::OpenFrameset(const nsIParserNode& aNode) {
PRInt32 result=kNoError;
mNodeStack[mNodeStackPos++]=(eHTMLTags)aNode.GetNodeType();
#ifdef VERBOSE_DEBUG
DebugDump("<",aNode.GetText(),(mNodeStackPos-1)*2);
#endif
return result;
}
/**
* This method gets called by the parser when a </FRAMESET>
* tag has been consumed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::CloseFrameset(const nsIParserNode& aNode){
NS_PRECONDITION(mNodeStackPos > 0, "node stack empty");
PRInt32 result=kNoError;
mNodeStack[--mNodeStackPos]=eHTMLTag_unknown;
#ifdef VERBOSE_DEBUG
DebugDump("</",aNode.GetText(),(mNodeStackPos)*2);
#endif
return result;
}
/**
* This method gets called by the parser when any general
* type of container has been consumed and needs to be
* opened. This includes things like <OL>, <Hn>, etc...
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::OpenContainer(const nsIParserNode& aNode){
PRInt32 result=kNoError;
mNodeStack[mNodeStackPos++]=(eHTMLTags)aNode.GetNodeType();
#ifdef VERBOSE_DEBUG
DebugDump("<",aNode.GetText(),(mNodeStackPos-1)*2);
#endif
return result;
}
/**
* This method gets called by the parser when a close
* container tag has been consumed and needs to be closed.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::CloseContainer(const nsIParserNode& aNode){
NS_PRECONDITION(mNodeStackPos > 0, "node stack empty");
PRInt32 result=kNoError;
mNodeStack[--mNodeStackPos]=eHTMLTag_unknown;
#ifdef VERBOSE_DEBUG
DebugDump("</",aNode.GetText(),(mNodeStackPos)*2);
#endif
return result;
}
/**
* This causes the topmost container to be closed,
* regardless of its type.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::CloseTopmostContainer(){
NS_PRECONDITION(mNodeStackPos > 0, "node stack empty");
PRInt32 result=kNoError;
mNodeStack[mNodeStackPos--]=eHTMLTag_unknown;
return result;
}
/**
* This gets called by the parser when you want to add
* a leaf node to the current container in the content
* model.
*
* @updated gess 3/25/98
* @param
* @return
*/
PRInt32 nsHTMLContentSink::AddLeaf(const nsIParserNode& aNode){
PRInt32 result=kNoError;
#ifdef VERBOSE_DEBUG
DebugDump("<",aNode.GetText(),(mNodeStackPos)*2);
#endif
return result;
}
/**
* This method gets called when the parser begins the process
* of building the content model via the content sink.
*
* @update 5/7/98 gess
*/
void nsHTMLContentSink::WillBuildModel(void){
}
/**
* This method gets called when the parser concludes the process
* of building the content model via the content sink.
*
* @update 5/7/98 gess
*/
void nsHTMLContentSink::DidBuildModel(void){
}
/**
* This method gets called when the parser gets i/o blocked,
* and wants to notify the sink that it may be a while before
* more data is available.
*
* @update 5/7/98 gess
*/
void nsHTMLContentSink::WillInterrupt(void) {
}
/**
* This method gets called when the parser i/o gets unblocked,
* and we're about to start dumping content again to the sink.
*
* @update 5/7/98 gess
*/
void nsHTMLContentSink::WillResume(void) {
}

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@ -1,167 +0,0 @@
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/**
* MODULE NOTES:
* @update gess 4/1/98
*
* 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
* OpenXXX method: OpenHTML,OpenHead,OpenBody,OpenFrameSet;
* likewise, the CloseXXX 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 preceeds 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.
*/
#ifndef NS_HTMLCONTENTSINK
#define NS_HTMLCONTENTSINK
#include "nsIParserNode.h"
#include "nsIHTMLContentSink.h"
#include "nsIContentSink.h"
#include "nsString.h"
#define NS_HTMLCONTENTSINK_IID \
{0x803f8110, 0xc287, 0x11d1, \
{0x80, 0x22, 0x00, 0x60, 0x08, 0x14, 0x98, 0x89}}
class nsHTMLContentSink : public nsIHTMLContentSink {
public:
enum eSection {eNone=0,eHTML,eHead,eBody,eContainer};
nsHTMLContentSink();
~nsHTMLContentSink();
NS_DECL_ISUPPORTS
PRBool SetTitle(const nsString& aValue);
// Called when Opening or closing the main HTML container
PRInt32 OpenHTML(const nsIParserNode& aNode);
PRInt32 CloseHTML(const nsIParserNode& aNode);
// Called when Opening or closing the main HEAD container
PRInt32 OpenHead(const nsIParserNode& aNode);
PRInt32 CloseHead(const nsIParserNode& aNode);
// Called when Opening or closing the main BODY container
PRInt32 OpenBody(const nsIParserNode& aNode);
PRInt32 CloseBody(const nsIParserNode& aNode);
// Called when Opening or closing FORM containers
PRInt32 OpenForm(const nsIParserNode& aNode);
PRInt32 CloseForm(const nsIParserNode& aNode);
// Called when Opening or closing the main FRAMESET container
PRInt32 OpenFrameset(const nsIParserNode& aNode);
PRInt32 CloseFrameset(const nsIParserNode& aNode);
// Called when Opening or closing a general container
// This includes: OL,UL,DIR,SPAN,TABLE,H[1..6],etc.
// Until proven otherwise, I also plan to toss STYLE,
// FRAME, SCRIPT, etc. here too!
virtual PRInt32 OpenContainer(const nsIParserNode& aNode);
virtual PRInt32 CloseContainer(const nsIParserNode& aNode);
virtual PRInt32 CloseTopmostContainer();
virtual PRInt32 AddLeaf(const nsIParserNode& aNode);
/**
* This method gets called when the parser begins the process
* of building the content model via the content sink.
*
* @update 5/7/98 gess
*/
virtual void WillBuildModel(void);
/**
* This method gets called when the parser concludes the process
* of building the content model via the content sink.
*
* @update 5/7/98 gess
*/
virtual void DidBuildModel(void);
/**
* This method gets called when the parser gets i/o blocked,
* and wants to notify the sink that it may be a while before
* more data is available.
*
* @update 5/7/98 gess
*/
virtual void WillInterrupt(void);
/**
* This method gets called when the parser i/o gets unblocked,
* and we're about to start dumping content again to the sink.
*
* @update 5/7/98 gess
*/
virtual void WillResume(void);
PRInt32 NodeAt(PRInt32 aPos) {return mNodeStack[aPos];}
PRInt32 TopNode() {return mNodeStack[mNodeStackPos-1];}
PRInt32 GetStackPos() {return mNodeStackPos;}
protected:
PRInt32 mNodeStack[100];
PRInt32 mNodeStackPos;
nsString mTitle;
};
#endif

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@ -92,9 +92,11 @@ class nsIContentSink : public nsISupports {
* This method gets called when the parser concludes the process
* of building the content model via the content sink.
*
* @param aQualityLevel describes how well formed the doc was.
* 0=GOOD; 1=FAIR; 2=POOR;
* @update 5/7/98 gess
*/
virtual void DidBuildModel(void)=0;
virtual void DidBuildModel(PRInt32 aQualityLevel)=0;
/**
* This method gets called when the parser gets i/o blocked,

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@ -226,9 +226,11 @@ class nsIHTMLContentSink : public nsIContentSink {
* This method gets called when the parser concludes the process
* of building the content model via the content sink.
*
* @param aQualityLevel describes how well formed the doc was.
* 0=GOOD; 1=FAIR; 2=POOR;
* @update 5/7/98 gess
*/
virtual void DidBuildModel(void)=0;
virtual void DidBuildModel(PRInt32 aQualityLevel)=0;
/**
* This method gets called when the parser gets i/o blocked,
@ -246,6 +248,7 @@ class nsIHTMLContentSink : public nsIContentSink {
* @update 5/7/98 gess
*/
virtual void WillResume(void)=0;
};