зеркало из https://github.com/mozilla/pjs.git
364 строки
12 KiB
C++
364 строки
12 KiB
C++
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is InnoTek Plugin Wrapper code.
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*
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* The Initial Developer of the Original Code is
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* InnoTek Systemberatung GmbH.
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* Portions created by the Initial Developer are Copyright (C) 2003-2005
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* InnoTek Systemberatung GmbH / Knut St. Osmundsen
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* Peter Weilbacher <mozilla@weilbacher.org>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*******************************************************************************
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* Defined Constants And Macros *
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*******************************************************************************/
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/** define this to make a completely freestanding module (i.e. no XPCOM imports).
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* This is handy when making new builds for existing browsers since this
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* doesn't require to have the .libs for the browser in question.
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*
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* - bird 2004-11-02: This must be enabled to support 1.7 / 1.8+!
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*/
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#ifndef _NO_XPCOMDLL_
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# ifdef IPLUGINW_OUTOFTREE
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# define _NO_XPCOMDLL_ 1
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# endif
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#endif
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/** define this to have minimal dependencies on XPCOM. */
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#ifndef _MINIMAL_XPCOMDLL_
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# ifdef _NO_XPCOMDLL_
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# define _MINIMAL_XPCOMDLL_ 1
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# endif
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#endif
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/*******************************************************************************
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* Header Files *
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*******************************************************************************/
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#ifdef _NO_XPCOMDLL_
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#define INCL_BASE
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#include <os2.h>
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#endif
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#ifdef DEBUG
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#include <stdio.h>
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#endif
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#include "nsCOMPtr.h"
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#include "nsIPlugin.h"
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#include "nsIGenericFactory.h"
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#include "nsILegacyPluginWrapperOS2.h"
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#include "nsInnoTekPluginWrapper.h"
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/*******************************************************************************
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* Global Variables *
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*******************************************************************************/
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static NS_DEFINE_CID(kPluginCID, NS_PLUGIN_CID);
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static NS_DEFINE_CID(kSupportsIID, NS_ISUPPORTS_IID);
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static NS_DEFINE_CID(kLegacyPluginWrapperIID, NS_ILEGACYPLUGINWRAPPEROS2_IID);
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/**
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* Implements a plugin wrapper factory.
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*/
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class nsInnoTekPluginWrapper : public nsILegacyPluginWrapperOS2
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{
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#ifdef _MINIMAL_XPCOMDLL_
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public:
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NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr);
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NS_IMETHOD_(nsrefcnt) AddRef(void);
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NS_IMETHOD_(nsrefcnt) Release(void);
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protected:
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nsAutoRefCnt mRefCnt;
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#else
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NS_DECL_ISUPPORTS
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#endif
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public:
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nsInnoTekPluginWrapper();
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static nsresult Create(nsISupports* aOuter, REFNSIID aIID, void** aResult);
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/**
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* PR_FindSymbol(,"NSGetFactory") + NSGetFactory().
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*/
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/* void getFactory (in nsIServiceManagerObsolete aServMgr, in REFNSIID aClass, in string aClassName, in string aContractID, in PRLibraryPtr aLibrary, out nsIPlugin aResult); */
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NS_IMETHOD GetFactory(nsIServiceManagerObsolete *aServMgr, REFNSIID aClass, const char *aClassName, const char *aContractID, PRLibrary * aLibrary, nsIPlugin **aResult);
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/**
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* Create a wrapper for the given interface if it's a legacy interface.
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* @returns NS_OK on success.
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* @returns NS_ERROR_INTERFACE if aIID isn't supported. aOut is nsnull.
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* @returns NS_ERROR_FAILURE on other error. aOut undefined.
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* @param aIID Interface Identifier of aIn and aOut.
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* @param aIn Interface of type aIID which may be a legacy interface
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* requiring a wrapper.
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* @param aOut The native interface.
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* If aIn is a legacy interface, this will be a wrappre.
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* If aIn is not a legacy interface, this is aIn.
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*/
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/* void maybeWrap (in REFNSIID aIID, in nsISupports aIn, out nsISupports aOut); */
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NS_IMETHOD MaybeWrap(REFNSIID aIID, nsISupports *aIn, nsISupports **aOut);
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};
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#ifdef _MINIMAL_XPCOMDLL_
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NS_IMETHODIMP_(nsrefcnt) nsInnoTekPluginWrapper::AddRef(void)
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{
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return ++mRefCnt;
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}
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NS_IMETHODIMP_(nsrefcnt) nsInnoTekPluginWrapper::Release(void)
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{
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--mRefCnt;
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if (mRefCnt == 0)
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{
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mRefCnt = 1; /* stabilize */
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delete this;
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return 0;
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}
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return mRefCnt;
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}
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NS_IMETHODIMP nsInnoTekPluginWrapper::QueryInterface(REFNSIID aIID, void** aInstancePtr)
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{
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if (aIID.Equals(kLegacyPluginWrapperIID))
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{
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*aInstancePtr = static_cast< nsILegacyPluginWrapperOS2 * > (this);
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AddRef();
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return NS_OK;
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}
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if (aIID.Equals(kSupportsIID))
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{
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*aInstancePtr = static_cast< nsISupports * > (this);
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AddRef();
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return NS_OK;
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}
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*aInstancePtr = nsnull;
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return NS_ERROR_NO_INTERFACE;
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}
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#else
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NS_IMPL_ISUPPORTS1(nsInnoTekPluginWrapper, nsILegacyPluginWrapperOS2)
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#endif
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/** Factory Constructor Object - do nothing. */
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nsInnoTekPluginWrapper::nsInnoTekPluginWrapper()
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{
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/* Create semaphores at a safe time */
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npXPCOMInitSems();
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}
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/**
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* Create the factory.
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* @returns NS_OK on success, with aResult containing the requested interface.
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* @returns NS_ERROR_* on failure, aResult is nsnull.
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*/
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nsresult nsInnoTekPluginWrapper::Create(nsISupports* aOuter, REFNSIID aIID, void** aResult)
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{
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*aResult = nsnull;
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#ifndef _MINIMAL_XPCOMDLL_
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NS_PRECONDITION(aOuter == nsnull, "no aggregation");
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#endif
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if (aOuter)
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return NS_ERROR_NO_AGGREGATION;
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#ifdef _MINIMAL_XPCOMDLL_
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nsILegacyPluginWrapperOS2 *
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#else
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nsCOMPtr<nsILegacyPluginWrapperOS2>
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#endif
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factory = new nsInnoTekPluginWrapper();
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if (!factory)
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return NS_ERROR_OUT_OF_MEMORY;
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return factory->QueryInterface(aIID, aResult);
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}
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/**
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* This is where we create the initial wrapper.
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*/
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NS_IMETHODIMP nsInnoTekPluginWrapper::GetFactory(nsIServiceManagerObsolete *aServMgr,
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REFNSIID aClass,
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const char *aClassName,
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const char *aContractID,
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PRLibrary * aLibrary,
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nsIPlugin **aResult)
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{
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nsresult rc;
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dprintf(("nsInnoTekPluginWrapper::CreatePlugin: enter"));
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/*
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* Do NSGetFactory.
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*/
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rc = npXPCOMGenericGetFactory(aServMgr, aClass, aClassName, aContractID, aLibrary, aResult);
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dprintf(("nsInnoTekPluginWrapper::CreatePlugin: npXPCOMGenericGetFactory -> rc=%d and *aResult=%x",
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rc, *aResult));
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return rc;
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}
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/**
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* Create a wrapper for the given interface if it's a legacy interface.
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* @returns NS_OK on success.
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* @returns NS_ERROR_NO_INTERFACE if aIID isn't supported. aOut is nsnull.
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* @returns NS_ERROR_FAILURE on other error. aOut undefined.
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* @param aIID Interface Identifier of aIn and aOut.
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* @param aIn Interface of type aIID which may be a legacy interface
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* requiring a wrapper.
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* @param aOut The native interface.
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* If aIn is a legacy interface, this will be a wrappre.
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* If aIn is not a legacy interface, this is aIn.
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* @remark Typically used for the flash plugin.
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*/
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NS_IMETHODIMP nsInnoTekPluginWrapper::MaybeWrap(REFNSIID aIID, nsISupports *aIn, nsISupports **aOut)
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{
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return npXPCOMGenericMaybeWrap(aIID, aIn, aOut);
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}
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/** Component Info */
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static const nsModuleComponentInfo gComponentInfo[] =
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{
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{
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"InnoTek Legacy XPCOM Plugin Wrapper",
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NS_LEGACY_PLUGIN_WRAPPER_CID,
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NS_LEGACY_PLUGIN_WRAPPER_CONTRACTID,
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nsInnoTekPluginWrapper::Create
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}
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};
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/** NSGetModule(); */
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NS_IMPL_NSGETMODULE(nsInnoTekPluginWrapperModule, gComponentInfo)
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#ifdef _NO_XPCOMDLL_
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/**
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* Find the start of the filename.
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*
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* @returns pointer to start of filename.
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* @param pszPath Path to examin.
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*/
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static char *GetBasename(char *pszPath)
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{
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char *pszName;
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char *psz;
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pszName = strrchr(pszPath, '\\');
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psz = strrchr(pszName ? pszName : pszPath, '/');
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if (psz)
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pszName = psz;
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if (!pszName)
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pszName = strchr(pszPath, ':');
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if (pszName)
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pszName++;
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else
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pszName = pszPath;
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return pszName;
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}
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nsresult NS_NewGenericModule2(nsModuleInfo *info, nsIModule* *result)
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{
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HMODULE hmod;
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nsresult rc = NS_ERROR_UNEXPECTED;
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APIRET rc2;
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/*
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* Because of the LIBPATHSTRICT feature we have to specific the full path
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* of the DLL to make sure we get the right handle.
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* (We're of course making assumptions about the executable and the XPCOM.DLL
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* begin at the same location.)
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*/
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char szXPCOM[CCHMAXPATH];
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char * pszName;
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PPIB ppib;
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PTIB ptib;
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DosGetInfoBlocks(&ptib, &ppib);
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pszName = GetBasename(strcpy(szXPCOM, ppib->pib_pchcmd));
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strcpy(pszName, "XPCOM.DLL");
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rc2 = DosLoadModule(NULL, 0, (PCSZ)szXPCOM, &hmod);
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if (!rc2)
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{
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NS_COM nsresult (* pfnNS_NewGenericModule2)(nsModuleInfo *info, nsIModule* *result);
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/* demangled name: NS_NewGenericModule2(nsModuleInfo*, nsIModule**) */
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rc2 = DosQueryProcAddr(hmod, 0, (PCSZ)"__Z20NS_NewGenericModule2P12nsModuleInfoPP9nsIModule",
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(PFN*)&pfnNS_NewGenericModule2);
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if (rc2)
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/* demangled name: NS_NewGenericModule2(const nsModuleInfo*, nsIModule**) */
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rc2 = DosQueryProcAddr(hmod, 0, (PCSZ)"__Z20NS_NewGenericModule2PK12nsModuleInfoPP9nsIModule",
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(PFN*)&pfnNS_NewGenericModule2);
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if (rc2)
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{
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/* The mozilla guys have splitt up XPCOM.DLL in 1.8 just to make life difficult. :-) */
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DosFreeModule(hmod);
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strcpy(pszName, "XPCOMCOR.DLL");
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rc2 = DosLoadModule(NULL, 0, (PCSZ)szXPCOM, &hmod);
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if (!rc2)
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{
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rc2 = DosQueryProcAddr(hmod, 0, (PCSZ)"__Z20NS_NewGenericModule2P12nsModuleInfoPP9nsIModule",
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(PFN*)&pfnNS_NewGenericModule2);
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if (rc2)
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/* demangled name: NS_NewGenericModule2(const nsModuleInfo*, nsIModule**) */
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rc2 = DosQueryProcAddr(hmod, 0, (PCSZ)"__Z20NS_NewGenericModule2PK12nsModuleInfoPP9nsIModule",
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(PFN*)&pfnNS_NewGenericModule2);
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}
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}
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if (!rc2)
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rc = pfnNS_NewGenericModule2(info, result);
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#ifdef DEBUG
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else
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fprintf(stderr, "ipluginw: DosQueryProcAddr -> %ld\n", rc2);
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#endif
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DosFreeModule(hmod);
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}
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#ifdef DEBUG
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else
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fprintf(stderr, "ipluginw: DosLoadModule -> %ld\n", rc2);
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if (rc)
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fprintf(stderr, "ipluginw: NS_NewGenericModule2 -> %#x\n", rc);
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#endif
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return rc;
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}
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#endif
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