RetroZilla/modules/plugin/tools/spy/common/epmanager.cpp

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2015-10-21 05:03:22 +02:00
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** 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.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* 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 ***** */
#include "xp.h"
#include "epmanager.h"
#include "logger.h"
extern Logger * logger;
InstanceList::InstanceList(NPP _instance) :
next(NULL),
instance(_instance)
{
}
InstanceList::~InstanceList()
{
}
PluginEntryPointList::PluginEntryPointList() :
next(NULL),
instances(NULL)
{
mimetype[0] = '\0';
memset((void *)&realNPPFuncs, 0, sizeof(realNPPFuncs));
realShutdown = NULL;
hLib = NULL;
}
PluginEntryPointList::~PluginEntryPointList()
{
}
NPPEntryPointManager::NPPEntryPointManager() :
mEntryPoints(NULL)
{
}
NPPEntryPointManager::~NPPEntryPointManager()
{
for(PluginEntryPointList * eps = mEntryPoints; eps != NULL;)
{
for(InstanceList * instances = eps->instances; instances != NULL;)
{
InstanceList * next = instances->next;
delete instances;
instances = next;
}
PluginEntryPointList * next = eps->next;
delete eps;
eps = next;
}
}
void NPPEntryPointManager::createEntryPointsForPlugin(char * mimetype, NPPluginFuncs * funcs, NP_SHUTDOWN shutdownproc, XP_HLIB hLib)
{
PluginEntryPointList * eps = new PluginEntryPointList();
if(eps == NULL)
return;
strcpy(eps->mimetype, mimetype);
if(funcs)
{
eps->realNPPFuncs.size = funcs->size;
eps->realNPPFuncs.version = funcs->version;
eps->realNPPFuncs.newp = funcs->newp;
eps->realNPPFuncs.destroy = funcs->destroy;
eps->realNPPFuncs.setwindow = funcs->setwindow;
eps->realNPPFuncs.newstream = funcs->newstream;
eps->realNPPFuncs.destroystream = funcs->destroystream;
eps->realNPPFuncs.asfile = funcs->asfile;
eps->realNPPFuncs.writeready = funcs->writeready;
eps->realNPPFuncs.write = funcs->write;
eps->realNPPFuncs.print = funcs->print;
eps->realNPPFuncs.event = funcs->event;
eps->realNPPFuncs.urlnotify = funcs->urlnotify;
eps->realNPPFuncs.javaClass = funcs->javaClass;
eps->realNPPFuncs.getvalue = funcs->getvalue;
eps->realNPPFuncs.setvalue = funcs->setvalue;
}
eps->realShutdown = shutdownproc;
eps->hLib = hLib;
eps->next = mEntryPoints;
mEntryPoints = eps;
}
void NPPEntryPointManager::removeEntryPointsForPlugin(NPP instance, XP_HLIB * lib)
{
NPPluginFuncs * eptoremove = findEntryPointsForInstance(instance);
PluginEntryPointList * prev = NULL;
for(PluginEntryPointList * eps = mEntryPoints; eps != NULL; eps = eps->next)
{
if(&eps->realNPPFuncs == eptoremove)
{
if(prev)
prev->next = eps->next;
else
mEntryPoints = eps->next;
*lib = eps->hLib;
delete eps;
return;
}
prev = eps;
}
}
NPPluginFuncs * NPPEntryPointManager::findEntryPointsForPlugin(char * mimetype)
{
for(PluginEntryPointList * eps = mEntryPoints; eps != NULL; eps = eps->next)
{
if(0 == stricmp(eps->mimetype, mimetype))
return &eps->realNPPFuncs;
}
return NULL;
}
NPPluginFuncs * NPPEntryPointManager::findEntryPointsForInstance(NPP instance)
{
for(PluginEntryPointList * eps = mEntryPoints; eps != NULL; eps = eps->next)
{
for(InstanceList * instances = eps->instances; instances != NULL; instances = instances->next)
{
if(instances->instance == instance)
return &eps->realNPPFuncs;
}
}
return NULL;
}
void NPPEntryPointManager::callNP_ShutdownAll()
{
for(PluginEntryPointList * eps = mEntryPoints; eps != NULL; eps = eps->next)
{
if(eps->realShutdown)
{
logger->logSPY_NP_Shutdown(eps->mimetype);
eps->realShutdown();
eps->realShutdown = NULL; // don't want to call it more than once
}
}
}
void NPPEntryPointManager::callNP_Shutdown(NPP instance)
{
for(PluginEntryPointList * eps = mEntryPoints; eps != NULL; eps = eps->next)
{
for(InstanceList * instances = eps->instances; instances != NULL; instances = instances->next)
{
if(instances->instance == instance)
{
if(eps->realShutdown)
{
logger->logSPY_NP_Shutdown(eps->mimetype);
eps->realShutdown();
eps->realShutdown = NULL; // don't want to call it more than once
}
}
}
}
}
NPError NPPEntryPointManager::callNPP_New(NPMIMEType pluginType, NPP instance, uint16 mode, int16 argc, char* argn[], char* argv[], NPSavedData* saved)
{
NPPluginFuncs * nppfuncs = NULL;
for(PluginEntryPointList * eps = mEntryPoints; eps != NULL; eps = eps->next)
{
if(0 == stricmp(eps->mimetype, pluginType))
{
nppfuncs = &eps->realNPPFuncs;
// now we should associate this plugin instance with plugin entry points
// so that later we could find entry points by instance rather than by mimetype
InstanceList * inst = new InstanceList(instance);
inst->next = eps->instances;
eps->instances = inst;
break;
}
}
if(!nppfuncs || !nppfuncs->newp)
return NPERR_GENERIC_ERROR;
NPError rv = CallNPP_NewProc(nppfuncs->newp, pluginType, instance, mode, argc, argn, argv, saved);
return rv;
}
NPError NPPEntryPointManager::callNPP_Destroy(NPP instance, NPSavedData** save, BOOL * last)
{
NPPluginFuncs * nppfuncs = NULL;
BOOL done = FALSE;
for(PluginEntryPointList * eps = mEntryPoints; eps != NULL; eps = eps->next)
{
InstanceList * prev = NULL;
for(InstanceList * instances = eps->instances; instances != NULL; instances = instances->next)
{
if(instances->instance == instance)
{
nppfuncs = &eps->realNPPFuncs;
done = TRUE;
// check if this is the last one
if(eps->instances->next == NULL)
*last = TRUE;
else
{
// deassociate instance if this is not the last one
// last instance will be needed to find corresponding shutdown proc
if(prev)
prev->next = instances->next;
else
eps->instances = instances->next;
delete instances;
}
break;
}
prev = instances;
}
if(done)
break;
}
if(!nppfuncs || !nppfuncs->destroy)
return NPERR_GENERIC_ERROR;
return CallNPP_DestroyProc(nppfuncs->destroy, instance, save);
}
NPError NPPEntryPointManager::callNPP_SetWindow(NPP instance, NPWindow* window)
{
NPPluginFuncs * nppfuncs = findEntryPointsForInstance(instance);
if(!nppfuncs || !nppfuncs->setwindow)
return NPERR_GENERIC_ERROR;
return CallNPP_SetWindowProc(nppfuncs->setwindow, instance, window);
}
NPError NPPEntryPointManager::callNPP_NewStream(NPP instance, NPMIMEType type, NPStream* stream, NPBool seekable, uint16* stype)
{
NPPluginFuncs * nppfuncs = findEntryPointsForInstance(instance);
if(!nppfuncs || !nppfuncs->newstream)
return NPERR_GENERIC_ERROR;
return CallNPP_NewStreamProc(nppfuncs->newstream, instance, type, stream, seekable, stype);
}
NPError NPPEntryPointManager::callNPP_DestroyStream(NPP instance, NPStream* stream, NPReason reason)
{
NPPluginFuncs * nppfuncs = findEntryPointsForInstance(instance);
if(!nppfuncs || !nppfuncs->destroystream)
return NPERR_GENERIC_ERROR;
return CallNPP_DestroyStreamProc(nppfuncs->destroystream, instance, stream, reason);
}
int32 NPPEntryPointManager::callNPP_WriteReady(NPP instance, NPStream* stream)
{
NPPluginFuncs * nppfuncs = findEntryPointsForInstance(instance);
if(!nppfuncs || !nppfuncs->writeready)
return NPERR_GENERIC_ERROR;
return CallNPP_WriteReadyProc(nppfuncs->writeready, instance, stream);
}
int32 NPPEntryPointManager::callNPP_Write(NPP instance, NPStream* stream, int32 offset, int32 len, void* buffer)
{
NPPluginFuncs * nppfuncs = findEntryPointsForInstance(instance);
if(!nppfuncs || !nppfuncs->write)
return NPERR_GENERIC_ERROR;
return CallNPP_WriteProc(nppfuncs->write, instance, stream, offset, len, buffer);
}
void NPPEntryPointManager::callNPP_StreamAsFile(NPP instance, NPStream* stream, const char* fname)
{
NPPluginFuncs * nppfuncs = findEntryPointsForInstance(instance);
if(!nppfuncs || !nppfuncs->asfile)
return;
CallNPP_StreamAsFileProc(nppfuncs->asfile, instance, stream, fname);
}
void NPPEntryPointManager::callNPP_Print(NPP instance, NPPrint* platformPrint)
{
NPPluginFuncs * nppfuncs = findEntryPointsForInstance(instance);
if(!nppfuncs || !nppfuncs->print)
return;
CallNPP_PrintProc(nppfuncs->print, instance, platformPrint);
}
void NPPEntryPointManager::callNPP_URLNotify(NPP instance, const char* url, NPReason reason, void* notifyData)
{
NPPluginFuncs * nppfuncs = findEntryPointsForInstance(instance);
if(!nppfuncs || !nppfuncs->urlnotify)
return;
CallNPP_URLNotifyProc(nppfuncs->urlnotify, instance, url, reason, notifyData);
}
NPError NPPEntryPointManager::callNPP_GetValue(NPP instance, NPPVariable variable, void *value)
{
NPPluginFuncs * nppfuncs = findEntryPointsForInstance(instance);
if(!nppfuncs || !nppfuncs->getvalue)
return NPERR_GENERIC_ERROR;
return CallNPP_GetValueProc(nppfuncs->getvalue, instance, variable, value);
}
NPError NPPEntryPointManager::callNPP_SetValue(NPP instance, NPNVariable variable, void *value)
{
NPPluginFuncs * nppfuncs = findEntryPointsForInstance(instance);
if(!nppfuncs || !nppfuncs->setvalue)
return NPERR_GENERIC_ERROR;
return CallNPP_SetValueProc(nppfuncs->setvalue, instance, variable, value);
}
int16 NPPEntryPointManager::callNPP_HandleEvent(NPP instance, void* event)
{
NPPluginFuncs * nppfuncs = findEntryPointsForInstance(instance);
if(!nppfuncs || !nppfuncs->event)
return NPERR_GENERIC_ERROR;
return CallNPP_HandleEventProc(nppfuncs->event, instance, event);
}