gecko-dev/dom/plugins/PluginPRLibrary.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: sw=4 ts=4 et :
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Plugin App.
*
* The Initial Developer of the Original Code is
* Josh Aas <josh@mozilla.com>
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef PluginPRLibrary_h
#define PluginPRLibrary_h 1
#include "mozilla/PluginLibrary.h"
#include "nsNPAPIPlugin.h"
namespace mozilla {
class PluginPRLibrary : public PluginLibrary
{
#if defined(XP_UNIX) && !defined(XP_MACOSX)
typedef NPError (*NP_InitializeFunc)(NPNetscapeFuncs*, NPPluginFuncs*);
#else
typedef NPError (OSCALL *NP_InitializeFunc)(NPNetscapeFuncs*);
#endif
typedef NPError (OSCALL *NP_ShutdownFunc)();
typedef char* (*NP_GetMIMEDescriptionFunc)();
typedef NPError (*NP_GetValueFunc)(void *, NPPVariable, void*);
#if defined(XP_WIN) || defined(XP_MACOSX) || defined(XP_OS2)
typedef NPError (OSCALL *NP_GetEntryPointsFunc)(NPPluginFuncs*);
#endif
public:
PluginPRLibrary(const char* aFilePath, PRLibrary* aLibrary) :
#if defined(XP_UNIX) && !defined(XP_MACOSX)
mNP_Initialize(nsnull),
#else
mNP_Initialize(nsnull),
#endif
mNP_Shutdown(nsnull),
mNP_GetMIMEDescription(nsnull),
mNP_GetValue(nsnull),
#if defined(XP_WIN) || defined(XP_MACOSX) || defined(XP_OS2)
mNP_GetEntryPoints(nsnull),
#endif
mNPP_New(nsnull),
mLibrary(aLibrary)
{
NS_ASSERTION(mLibrary, "need non-null lib");
// addref here??
}
virtual ~PluginPRLibrary()
{
// unref here??
}
virtual void SetPlugin(nsNPAPIPlugin*) { }
virtual bool HasRequiredFunctions() {
mNP_Initialize = (NP_InitializeFunc)
PR_FindFunctionSymbol(mLibrary, "NP_Initialize");
if (!mNP_Initialize)
return false;
mNP_Shutdown = (NP_ShutdownFunc)
PR_FindFunctionSymbol(mLibrary, "NP_Shutdown");
if (!mNP_Shutdown)
return false;
mNP_GetMIMEDescription = (NP_GetMIMEDescriptionFunc)
PR_FindFunctionSymbol(mLibrary, "NP_GetMIMEDescription");
#ifndef XP_MACOSX
if (!mNP_GetMIMEDescription)
return false;
#endif
mNP_GetValue = (NP_GetValueFunc)
PR_FindFunctionSymbol(mLibrary, "NP_GetValue");
#ifndef XP_MACOSX
if (!mNP_GetValue)
return false;
#endif
#if defined(XP_WIN) || defined(XP_MACOSX) || defined(XP_OS2)
mNP_GetEntryPoints = (NP_GetEntryPointsFunc)
PR_FindFunctionSymbol(mLibrary, "NP_GetEntryPoints");
if (!mNP_GetEntryPoints)
return false;
#endif
return true;
}
#if defined(XP_UNIX) && !defined(XP_MACOSX)
virtual nsresult NP_Initialize(NPNetscapeFuncs* bFuncs, NPPluginFuncs* pFuncs, NPError* error) {
if (mNP_Initialize) {
*error = mNP_Initialize(bFuncs, pFuncs);
} else {
NP_InitializeFunc pfNP_Initialize = (NP_InitializeFunc)
PR_FindFunctionSymbol(mLibrary, "NP_Initialize");
if (!pfNP_Initialize)
return NS_ERROR_FAILURE;
*error = pfNP_Initialize(bFuncs, pFuncs);
}
// save NPP_New
mNPP_New = pFuncs->newp;
return NS_OK;
}
#else
virtual nsresult NP_Initialize(NPNetscapeFuncs* bFuncs, NPError* error) {
if (mNP_Initialize) {
*error = mNP_Initialize(bFuncs);
} else {
NP_InitializeFunc pfNP_Initialize = (NP_InitializeFunc)
PR_FindFunctionSymbol(mLibrary, "NP_Initialize");
if (!pfNP_Initialize)
return NS_ERROR_FAILURE;
*error = pfNP_Initialize(bFuncs);
}
return NS_OK;
}
#endif
virtual nsresult NP_Shutdown(NPError* error) {
if (mNP_Shutdown) {
*error = mNP_Shutdown();
} else {
NP_ShutdownFunc pfNP_Shutdown = (NP_ShutdownFunc)
PR_FindFunctionSymbol(mLibrary, "NP_Shutdown");
if (!pfNP_Shutdown)
return NS_ERROR_FAILURE;
*error = pfNP_Shutdown();
}
return NS_OK;
}
virtual nsresult NP_GetMIMEDescription(const char** mimeDesc) {
if (mNP_GetMIMEDescription) {
*mimeDesc = mNP_GetMIMEDescription();
}
else {
NP_GetMIMEDescriptionFunc pfNP_GetMIMEDescription =
(NP_GetMIMEDescriptionFunc)
PR_FindFunctionSymbol(mLibrary, "NP_GetMIMEDescription");
if (!pfNP_GetMIMEDescription) {
*mimeDesc = "";
return NS_ERROR_FAILURE;
}
*mimeDesc = pfNP_GetMIMEDescription();
}
return NS_OK;
}
virtual nsresult NP_GetValue(void *future, NPPVariable aVariable,
void *aValue, NPError* error) {
if (mNP_GetValue) {
*error = mNP_GetValue(future, aVariable, aValue);
} else {
NP_GetValueFunc pfNP_GetValue = (NP_GetValueFunc)
PR_FindFunctionSymbol(mLibrary, "NP_GetValue");
if (!pfNP_GetValue)
return NS_ERROR_FAILURE;
*error = pfNP_GetValue(future, aVariable, aValue);
}
return NS_OK;
}
#if defined(XP_WIN) || defined(XP_MACOSX) || defined(XP_OS2)
virtual nsresult NP_GetEntryPoints(NPPluginFuncs* pFuncs, NPError* error) {
if (mNP_GetEntryPoints) {
*error = mNP_GetEntryPoints(pFuncs);
} else {
NP_GetEntryPointsFunc pfNP_GetEntryPoints = (NP_GetEntryPointsFunc)
PR_FindFunctionSymbol(mLibrary, "NP_GetEntryPoints");
if (!pfNP_GetEntryPoints)
return NS_ERROR_FAILURE;
*error = pfNP_GetEntryPoints(pFuncs);
}
// save NPP_New
mNPP_New = pFuncs->newp;
return NS_OK;
}
#endif
virtual nsresult NPP_New(NPMIMEType pluginType, NPP instance,
uint16_t mode, int16_t argc, char* argn[],
char* argv[], NPSavedData* saved,
NPError* error) {
if (!mNPP_New)
return NS_ERROR_FAILURE;
*error = mNPP_New(pluginType, instance, mode, argc, argn, argv, saved);
return NS_OK;
}
private:
NP_InitializeFunc mNP_Initialize;
NP_ShutdownFunc mNP_Shutdown;
NP_GetMIMEDescriptionFunc mNP_GetMIMEDescription;
NP_GetValueFunc mNP_GetValue;
#if defined(XP_WIN) || defined(XP_MACOSX) || defined(XP_OS2)
NP_GetEntryPointsFunc mNP_GetEntryPoints;
#endif
NPP_NewProcPtr mNPP_New;
PRLibrary* mLibrary;
};
} // namespace mozilla
#endif // ifndef PluginPRLibrary_h