зеркало из https://github.com/mozilla/gecko-dev.git
151 строка
4.0 KiB
C++
151 строка
4.0 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://wwwt.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 "nsCOMPtr.h"
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#include "nsEditorFactory.h"
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#include "nsIEditor.h"
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#include "nsIHTMLEditor.h"
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#include "nsEditorShell.h"
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#include "nsEditorShellFactory.h"
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#include "nsHTMLEditor.h"
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#include "nsEditor.h"
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#include "nsEditorCID.h"
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#include "nsIComponentManager.h"
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#include "nsIServiceManager.h"
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static NS_DEFINE_IID(kHTMLEditorCID, NS_HTMLEDITOR_CID);
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nsresult
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GetEditorFactory(nsIFactory **aFactory, const nsCID & aClass)
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{
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// XXX Note static which never gets released, even on library unload.
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// XXX Was an nsCOMPtr but that caused a crash on exit,
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// XXX http://bugzilla.mozilla.org/show_bug.cgi?id=7938
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PR_EnterMonitor(GetEditorMonitor());
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nsEditorFactory *factory = new nsEditorFactory(aClass);
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if (!factory)
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return NS_ERROR_OUT_OF_MEMORY;
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nsCOMPtr<nsIFactory> pNSIFactory = do_QueryInterface(factory);
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if (!pNSIFactory)
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return NS_ERROR_NO_INTERFACE;
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nsresult result = pNSIFactory->QueryInterface(nsIFactory::GetIID(),
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(void **)aFactory);
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PR_ExitMonitor(GetEditorMonitor());
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return result;
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}
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nsEditorFactory::nsEditorFactory(const nsCID &aClass)
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: mCID(aClass)
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{
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NS_INIT_REFCNT();
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}
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nsEditorFactory::~nsEditorFactory()
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{
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//nsComponentManager::UnregisterFactory(mCID, (nsIFactory *)this); //we are out of ref counts anyway
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}
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////////////////////////////////////////////////////////////////////////////
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// from nsISupports
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NS_METHOD
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nsEditorFactory::QueryInterface(const nsIID& aIID, void** aInstancePtr)
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{
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if (nsnull == aInstancePtr) {
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NS_NOTREACHED("!nsEditor");
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return NS_ERROR_NULL_POINTER;
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}
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if (aIID.Equals(nsIFactory::GetIID()) ||
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aIID.Equals(nsCOMTypeInfo<nsISupports>::GetIID())) {
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*aInstancePtr = (void*) this;
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AddRef();
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return NS_OK;
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}
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return NS_NOINTERFACE;
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}
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NS_IMPL_ADDREF(nsEditorFactory)
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NS_IMPL_RELEASE(nsEditorFactory)
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////////////////////////////////////////////////////////////////////////////
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// from nsIFactory:
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NS_METHOD
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nsEditorFactory::CreateInstance(nsISupports *aOuter, REFNSIID aIID, void **aResult)
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{
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*aResult = nsnull;
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nsISupports *obj = nsnull;
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if (!aResult)
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return NS_ERROR_NULL_POINTER;
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if (aOuter && !aIID.Equals(nsCOMTypeInfo<nsISupports>::GetIID()))
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return NS_NOINTERFACE; // XXX right error?
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/* nsEditor is pure virtual
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if (mCID.Equals(kEditorCID))
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obj = (nsISupports *)(nsIEditor*)new nsEditor();
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*/
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if (mCID.Equals(kHTMLEditorCID))
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{
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//Need to cast to interface first to avoid "ambiguous conversion..." error
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// because of multiple nsISupports in the class hierarchy
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obj = (nsISupports *)(nsIHTMLEditor*)new nsHTMLEditor();
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}
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if (obj && NS_FAILED(obj->QueryInterface(aIID, (void**)aResult)) )
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{
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delete obj;
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return NS_NOINTERFACE;
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}
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return NS_OK;
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}
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NS_METHOD
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nsEditorFactory::LockFactory(PRBool aLock)
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{
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return NS_OK;
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}
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//if more than one person asks for the monitor at the same time for the FIRST time, we are screwed
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PRMonitor *GetEditorMonitor()
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{
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static PRMonitor *ns_editlock = nsnull;
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if (nsnull == ns_editlock)
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{
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ns_editlock = (PRMonitor *)1; //how long will the next line take? lets cut down on the chance of reentrancy
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ns_editlock = PR_NewMonitor();
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}
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else if ((PRMonitor *)1 == ns_editlock)
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return GetEditorMonitor();
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return ns_editlock;
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}
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