зеркало из https://github.com/mozilla/gecko-dev.git
400 строки
11 KiB
C++
400 строки
11 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nscore.h"
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#include "nslayout.h"
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#include "nsIFactory.h"
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#include "nsISupports.h"
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#include "nsLayoutCID.h"
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#include "nsIDocument.h"
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#include "nsIHTMLContent.h"
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#include "nsITextContent.h"
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#include "nsIPresShell.h"
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#include "nsIDOMSelection.h"
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#include "nsIFrameUtil.h"
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#include "nsHTMLAtoms.h"
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#include "nsHTMLParts.h"
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#include "nsDOMCID.h"
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#include "nsIServiceManager.h"
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#include "nsICSSParser.h"
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#include "nsIHTMLStyleSheet.h"
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#include "nsIHTMLCSSStyleSheet.h"
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#include "nsIDOMRange.h"
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#include "nsIContentIterator.h"
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#include "nsINameSpaceManager.h"
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#include "nsIScriptNameSetRegistry.h"
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#include "nsIScriptNameSpaceManager.h"
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#include "nsIScriptExternalNameSet.h"
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#include "nsIEventListenerManager.h"
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static NS_DEFINE_IID(kCHTMLDocumentCID, NS_HTMLDOCUMENT_CID);
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static NS_DEFINE_IID(kCXMLDocumentCID, NS_XMLDOCUMENT_CID);
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static NS_DEFINE_IID(kCImageDocumentCID, NS_IMAGEDOCUMENT_CID);
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static NS_DEFINE_IID(kCCSSParserCID, NS_CSSPARSER_CID);
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static NS_DEFINE_CID(kHTMLStyleSheetCID, NS_HTMLSTYLESHEET_CID);
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static NS_DEFINE_CID(kHTMLCSSStyleSheetCID, NS_HTML_CSS_STYLESHEET_CID);
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static NS_DEFINE_IID(kCHTMLImageElementCID, NS_HTMLIMAGEELEMENT_CID);
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static NS_DEFINE_IID(kCRangeListCID, NS_RANGELIST_CID);
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static NS_DEFINE_IID(kCRangeCID, NS_RANGE_CID);
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static NS_DEFINE_IID(kCContentIteratorCID, NS_CONTENTITERATOR_CID);
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static NS_DEFINE_IID(kCSubtreeIteratorCID, NS_SUBTREEITERATOR_CID);
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static NS_DEFINE_CID(kPresShellCID, NS_PRESSHELL_CID);
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static NS_DEFINE_CID(kTextNodeCID, NS_TEXTNODE_CID);
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static NS_DEFINE_CID(kNameSpaceManagerCID, NS_NAMESPACEMANAGER_CID);
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static NS_DEFINE_CID(kFrameUtilCID, NS_FRAME_UTIL_CID);
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static NS_DEFINE_CID(kEventListenerManagerCID, NS_EVENTLISTENERMANAGER_CID);
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extern nsresult NS_NewRangeList(nsIDOMSelection **);
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extern nsresult NS_NewRange(nsIDOMRange **);
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extern nsresult NS_NewContentIterator(nsIContentIterator **);
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extern nsresult NS_NewContentSubtreeIterator(nsIContentIterator **);
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extern nsresult NS_NewFrameUtil(nsIFrameUtil** aResult);
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////////////////////////////////////////////////////////////
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//
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////////////////////////////////////////////////////////////
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static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
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static NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
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class nsLayoutFactory : public nsIFactory
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{
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public:
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// nsISupports methods
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NS_IMETHOD QueryInterface(const nsIID &aIID,
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void **aResult);
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NS_IMETHOD_(nsrefcnt) AddRef(void);
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NS_IMETHOD_(nsrefcnt) Release(void);
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// nsIFactory methods
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NS_IMETHOD CreateInstance(nsISupports *aOuter,
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const nsIID &aIID,
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void **aResult);
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NS_IMETHOD LockFactory(PRBool aLock);
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nsLayoutFactory(const nsCID &aClass);
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protected:
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virtual ~nsLayoutFactory();
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private:
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nsrefcnt mRefCnt;
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nsCID mClassID;
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};
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nsLayoutFactory::nsLayoutFactory(const nsCID &aClass)
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{
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mRefCnt = 0;
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mClassID = aClass;
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}
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nsLayoutFactory::~nsLayoutFactory()
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{
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NS_ASSERTION(mRefCnt == 0, "non-zero refcnt at destruction");
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}
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nsresult nsLayoutFactory::QueryInterface(const nsIID &aIID,
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void **aResult)
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{
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if (aResult == NULL) {
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return NS_ERROR_NULL_POINTER;
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}
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// Always NULL result, in case of failure
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*aResult = NULL;
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if (aIID.Equals(kISupportsIID)) {
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*aResult = (void *)(nsISupports*)this;
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} else if (aIID.Equals(kIFactoryIID)) {
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*aResult = (void *)(nsIFactory*)this;
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}
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if (*aResult == NULL) {
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return NS_NOINTERFACE;
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}
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AddRef(); // Increase reference count for caller
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return NS_OK;
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}
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nsrefcnt nsLayoutFactory::AddRef()
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{
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return ++mRefCnt;
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}
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nsrefcnt nsLayoutFactory::Release()
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{
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if (--mRefCnt == 0) {
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delete this;
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return 0; // Don't access mRefCnt after deleting!
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}
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return mRefCnt;
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}
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nsresult nsLayoutFactory::CreateInstance(nsISupports *aOuter,
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const nsIID &aIID,
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void **aResult)
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{
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nsresult res;
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PRBool refCounted = PR_TRUE;
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if (aResult == NULL) {
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return NS_ERROR_NULL_POINTER;
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}
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*aResult = NULL;
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nsISupports *inst = nsnull;
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// XXX ClassID check happens here
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if (mClassID.Equals(kCHTMLDocumentCID)) {
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res = NS_NewHTMLDocument((nsIDocument **)&inst);
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if (!NS_SUCCEEDED(res)) {
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return res;
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}
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refCounted = PR_TRUE;
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}
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else if (mClassID.Equals(kCXMLDocumentCID)) {
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res = NS_NewXMLDocument((nsIDocument **)&inst);
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if (!NS_SUCCEEDED(res)) {
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return res;
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}
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refCounted = PR_TRUE;
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}
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else if (mClassID.Equals(kCImageDocumentCID)) {
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res = NS_NewImageDocument((nsIDocument **)&inst);
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if (!NS_SUCCEEDED(res)) {
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return res;
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}
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refCounted = PR_TRUE;
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}
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else if (mClassID.Equals(kCHTMLImageElementCID)) {
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res = NS_NewHTMLImageElement((nsIHTMLContent**)&inst, nsHTMLAtoms::img);
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if (NS_FAILED(res)) {
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return res;
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}
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refCounted = PR_TRUE;
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}
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else if (mClassID.Equals(kPresShellCID)) {
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res = NS_NewPresShell((nsIPresShell**) &inst);
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if (NS_FAILED(res)) {
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return res;
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}
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refCounted = PR_TRUE;
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}
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else if (mClassID.Equals(kCRangeListCID)) {
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res = NS_NewRangeList((nsIDOMSelection**)&inst);
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if (!NS_SUCCEEDED(res)) {
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return res;
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}
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refCounted = PR_TRUE;
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}
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else if (mClassID.Equals(kCRangeCID)) {
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res = NS_NewRange((nsIDOMRange **)&inst);
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if (!NS_SUCCEEDED(res)) {
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return res;
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}
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refCounted = PR_TRUE;
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}
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else if (mClassID.Equals(kCContentIteratorCID)) {
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res = NS_NewContentIterator((nsIContentIterator **)&inst);
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if (!NS_SUCCEEDED(res)) {
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return res;
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}
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refCounted = PR_TRUE;
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}
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else if (mClassID.Equals(kCSubtreeIteratorCID)) {
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res = NS_NewContentSubtreeIterator((nsIContentIterator **)&inst);
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if (!NS_SUCCEEDED(res)) {
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return res;
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}
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refCounted = PR_TRUE;
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}
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else if (mClassID.Equals(kCCSSParserCID)) {
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// XXX this should really be factored into a style-specific DLL so
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// that all the HTML, generic layout, and style stuff isn't munged
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// together.
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if (NS_FAILED(res = NS_NewCSSParser((nsICSSParser**)&inst)))
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return res;
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refCounted = PR_TRUE;
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}
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else if (mClassID.Equals(kHTMLStyleSheetCID)) {
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// XXX ibid
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if (NS_FAILED(res = NS_NewHTMLStyleSheet((nsIHTMLStyleSheet**)&inst)))
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return res;
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refCounted = PR_TRUE;
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}
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else if (mClassID.Equals(kHTMLCSSStyleSheetCID)) {
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// XXX ibid
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if (NS_FAILED(res = NS_NewHTMLCSSStyleSheet((nsIHTMLCSSStyleSheet**)&inst)))
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return res;
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refCounted = PR_TRUE;
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}
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else if (mClassID.Equals(kTextNodeCID)) {
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// XXX ibid
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if (NS_FAILED(res = NS_NewTextNode((nsIContent**) &inst)))
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return res;
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refCounted = PR_TRUE;
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}
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else if (mClassID.Equals(kNameSpaceManagerCID)) {
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if (NS_FAILED(res = NS_NewNameSpaceManager((nsINameSpaceManager**)&inst)))
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return res;
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refCounted = PR_TRUE;
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}
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else if (mClassID.Equals(kFrameUtilCID)) {
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// XXX ibid
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if (NS_FAILED(res = NS_NewFrameUtil((nsIFrameUtil**) &inst)))
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return res;
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refCounted = PR_TRUE;
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}
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else if (mClassID.Equals(kEventListenerManagerCID)) {
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if (NS_FAILED(res = NS_NewEventListenerManager((nsIEventListenerManager**) &inst)))
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return res;
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refCounted = PR_TRUE;
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}
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else
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{
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return NS_NOINTERFACE;
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}
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if (inst == NULL) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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res = inst->QueryInterface(aIID, aResult);
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if (refCounted) {
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NS_RELEASE(inst);
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}
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else if (res != NS_OK) {
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// We didn't get the right interface, so clean up
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delete inst;
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}
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return res;
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}
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nsresult nsLayoutFactory::LockFactory(PRBool aLock)
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{
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// Not implemented in simplest case.
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return NS_OK;
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}
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////////////////////////////////////////////////////////////
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//
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////////////////////////////////////////////////////////////
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static NS_DEFINE_IID(kIScriptNameSetRegistryIID, NS_ISCRIPTNAMESETREGISTRY_IID);
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static NS_DEFINE_IID(kCScriptNameSetRegistryCID, NS_SCRIPT_NAMESET_REGISTRY_CID);
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static NS_DEFINE_IID(kIScriptNameSpaceManagerIID, NS_ISCRIPTNAMESPACEMANAGER_IID);
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static NS_DEFINE_IID(kIScriptExternalNameSetIID, NS_ISCRIPTEXTERNALNAMESET_IID);
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class LayoutScriptNameSet : public nsIScriptExternalNameSet {
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public:
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LayoutScriptNameSet();
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~LayoutScriptNameSet();
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NS_DECL_ISUPPORTS
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NS_IMETHOD InitializeClasses(nsIScriptContext* aScriptContext);
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NS_IMETHOD AddNameSet(nsIScriptContext* aScriptContext);
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};
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LayoutScriptNameSet::LayoutScriptNameSet()
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{
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NS_INIT_REFCNT();
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}
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LayoutScriptNameSet::~LayoutScriptNameSet()
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{
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}
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NS_IMPL_ISUPPORTS(LayoutScriptNameSet, kIScriptExternalNameSetIID);
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NS_IMETHODIMP
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LayoutScriptNameSet::InitializeClasses(nsIScriptContext* aScriptContext)
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{
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return NS_OK;
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}
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NS_IMETHODIMP
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LayoutScriptNameSet::AddNameSet(nsIScriptContext* aScriptContext)
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{
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nsresult result = NS_OK;
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nsIScriptNameSpaceManager* manager;
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result = aScriptContext->GetNameSpaceManager(&manager);
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if (NS_OK == result) {
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result = manager->RegisterGlobalName("HTMLImageElement",
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kCHTMLImageElementCID,
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PR_TRUE);
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NS_RELEASE(manager);
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}
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return result;
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}
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////////////////////////////////////////////////////////////
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//
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////////////////////////////////////////////////////////////
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static nsIScriptNameSetRegistry *gRegistry;
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// return the proper factory to the caller
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#if defined(XP_MAC) && defined(MAC_STATIC)
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extern "C" NS_LAYOUT nsresult
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NSGetFactory_LAYOUT_DLL(nsISupports* serviceMgr,
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const nsCID &aClass,
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const char *aClassName,
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const char *aProgID,
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nsIFactory **aFactory)
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#else
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extern "C" NS_LAYOUT nsresult
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NSGetFactory(nsISupports* serviceMgr,
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const nsCID &aClass,
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const char *aClassName,
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const char *aProgID,
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nsIFactory **aFactory)
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#endif
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{
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if (nsnull == gRegistry) {
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nsresult result = nsServiceManager::GetService(kCScriptNameSetRegistryCID,
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kIScriptNameSetRegistryIID,
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(nsISupports **)&gRegistry);
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if (NS_OK == result) {
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LayoutScriptNameSet* nameSet = new LayoutScriptNameSet();
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gRegistry->AddExternalNameSet(nameSet);
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}
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}
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if (nsnull == aFactory) {
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return NS_ERROR_NULL_POINTER;
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}
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*aFactory = new nsLayoutFactory(aClass);
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if (nsnull == aFactory) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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return (*aFactory)->QueryInterface(kIFactoryIID, (void**)aFactory);
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}
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