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gecko-dev/modules/plugin/nglsrc/ns4xPlugin.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
// TODO: Implement Java callbacks
#include "xp_core.h"
#include "nsplugin.h"
#include "ns4xPlugin.h"
#include "ns4xPluginInstance.h"
#include "nsIServiceManager.h"
#include "nsIAllocator.h"
#include "nsIPluginStreamListener.h"
////////////////////////////////////////////////////////////////////////
NPNetscapeFuncs ns4xPlugin::CALLBACKS;
nsIPluginManager * ns4xPlugin::mPluginManager;
nsIAllocator * ns4xPlugin::mMalloc;
void
ns4xPlugin::CheckClassInitialized(void)
{
static PRBool initialized = FALSE;
if (initialized)
return;
mPluginManager = nsnull;
mMalloc = nsnull;
// XXX It'd be nice to make this const and initialize it
// statically...
CALLBACKS.size = sizeof(CALLBACKS);
CALLBACKS.version = (NP_VERSION_MAJOR << 8) + NP_VERSION_MINOR;
CALLBACKS.geturl = NewNPN_GetURLProc(_geturl);
CALLBACKS.posturl = NewNPN_PostURLProc(_posturl);
CALLBACKS.requestread = NewNPN_RequestReadProc(_requestread);
CALLBACKS.newstream = NewNPN_NewStreamProc(_newstream);
CALLBACKS.write = NewNPN_WriteProc(_write);
CALLBACKS.destroystream = NewNPN_DestroyStreamProc(_destroystream);
CALLBACKS.status = NewNPN_StatusProc(_status);
CALLBACKS.uagent = NewNPN_UserAgentProc(_useragent);
CALLBACKS.memalloc = NewNPN_MemAllocProc(_memalloc);
CALLBACKS.memfree = NewNPN_MemFreeProc(_memfree);
CALLBACKS.memflush = NewNPN_MemFlushProc(_memflush);
CALLBACKS.reloadplugins = NewNPN_ReloadPluginsProc(_reloadplugins);
CALLBACKS.getJavaEnv = NewNPN_GetJavaEnvProc(_getJavaEnv);
CALLBACKS.getJavaPeer = NewNPN_GetJavaPeerProc(_getJavaPeer);
CALLBACKS.geturlnotify = NewNPN_GetURLNotifyProc(_geturlnotify);
CALLBACKS.posturlnotify = NewNPN_PostURLNotifyProc(_posturlnotify);
CALLBACKS.getvalue = NewNPN_GetValueProc(_getvalue);
CALLBACKS.setvalue = NewNPN_SetValueProc(_setvalue);
CALLBACKS.invalidaterect = NewNPN_InvalidateRectProc(_invalidaterect);
CALLBACKS.invalidateregion = NewNPN_InvalidateRegionProc(_invalidateregion);
CALLBACKS.forceredraw = NewNPN_ForceRedrawProc(_forceredraw);
initialized = TRUE;
};
////////////////////////////////////////////////////////////////////////
// nsISupports stuff
NS_IMPL_ADDREF(ns4xPlugin);
NS_IMPL_RELEASE(ns4xPlugin);
//static NS_DEFINE_IID(kILiveConnectPluginIID, NS_ILIVECONNECTPLUGIN_IID);
static NS_DEFINE_IID(kIPluginIID, NS_IPLUGIN_IID);
static NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kIWindowlessPluginInstancePeerIID, NS_IWINDOWLESSPLUGININSTANCEPEER_IID);
static NS_DEFINE_IID(kPluginManagerCID, NS_PLUGINMANAGER_CID);
static NS_DEFINE_IID(kIPluginManagerIID, NS_IPLUGINMANAGER_IID);
static NS_DEFINE_IID(kAllocatorCID, NS_ALLOCATOR_CID);
static NS_DEFINE_IID(kIAllocatorIID, NS_IALLOCATOR_IID);
static NS_DEFINE_IID(kIPluginStreamListenerIID, NS_IPLUGINSTREAMLISTENER_IID);
////////////////////////////////////////////////////////////////////////
ns4xPlugin::ns4xPlugin(NPPluginFuncs* callbacks, NP_PLUGINSHUTDOWN aShutdown, nsIServiceManager* serviceMgr)
{
NS_INIT_REFCNT();
memcpy((void*) &fCallbacks, (void*) callbacks, sizeof(fCallbacks));
fShutdownEntry = aShutdown;
// set up the connections to the plugin manager
if (nsnull == mPluginManager)
serviceMgr->GetService(kPluginManagerCID, kIPluginManagerIID, (nsISupports**)&mPluginManager);
if (nsnull == mMalloc)
serviceMgr->GetService(kAllocatorCID, kIAllocatorIID, (nsISupports**)&mMalloc);
}
ns4xPlugin::~ns4xPlugin(void)
{
}
nsresult
ns4xPlugin::QueryInterface(const nsIID& iid, void** instance)
{
if (instance == NULL)
return NS_ERROR_NULL_POINTER;
if (iid.Equals(kIPluginIID))
{
*instance = (void *)(nsIPlugin *)this;
AddRef();
return NS_OK;
}
if (iid.Equals(kIFactoryIID))
{
*instance = (void *)(nsIFactory *)this;
AddRef();
return NS_OK;
}
if (iid.Equals(kISupportsIID))
{
*instance = (void *)(nsISupports *)this;
AddRef();
return NS_OK;
}
return NS_NOINTERFACE;
}
////////////////////////////////////////////////////////////////////////
// Static factory method.
//
/*
CreatePlugin()
--------------
Handles the initialization of old, 4x style plugins. Creates the ns4xPlugin object.
One ns4xPlugin object exists per Plugin (not instance).
*/
nsresult
ns4xPlugin::CreatePlugin(PRLibrary *library,
nsIPlugin **result,
nsIServiceManager* serviceMgr)
{
CheckClassInitialized();
// XXX this only applies on Windows
NP_GETENTRYPOINTS pfnGetEntryPoints =
(NP_GETENTRYPOINTS)PR_FindSymbol(library, "NP_GetEntryPoints");
if (pfnGetEntryPoints == NULL)
return NS_ERROR_FAILURE;
NPPluginFuncs callbacks;
memset((void*) &callbacks, 0, sizeof(callbacks));
callbacks.size = sizeof(callbacks);
if (pfnGetEntryPoints(&callbacks) != NS_OK)
return NS_ERROR_FAILURE; // XXX
#ifdef XP_WIN // XXX This is really XP, but we need to figure out how to do HIBYTE()
if (HIBYTE(callbacks.version) < NP_VERSION_MAJOR)
return NS_ERROR_FAILURE;
#endif
NP_PLUGINSHUTDOWN pfnShutdown =
(NP_PLUGINSHUTDOWN)PR_FindSymbol(library, "NP_Shutdown");
// create the new plugin handler
*result = new ns4xPlugin(&callbacks, pfnShutdown, serviceMgr);
NS_ADDREF(*result);
if (*result == NULL)
return NS_ERROR_OUT_OF_MEMORY;
// we must init here because the plugin may call NPN functions
// when we call into the NP_Initialize entry point - NPN functions
// require that mBrowserManager be set up
(*result)->Initialize();
// the NP_Initialize entry point was misnamed as NP_PluginInit,
// early in plugin project development. Its correct name is
// documented now, and new developers expect it to work. However,
// I don't want to break the plugins already in the field, so
// we'll accept either name
NP_PLUGININIT pfnInitialize =
(NP_PLUGININIT)PR_FindSymbol(library, "NP_Initialize");
if (!pfnInitialize) {
pfnInitialize =
(NP_PLUGININIT)PR_FindSymbol(library, "NP_PluginInit");
}
if (pfnInitialize == NULL)
return NS_ERROR_UNEXPECTED; // XXX Right error?
if (pfnInitialize(&(ns4xPlugin::CALLBACKS)) != NS_OK)
return NS_ERROR_UNEXPECTED;
return NS_OK;
}
/*
CreateInstance()
----------------
Creates a ns4xPluginInstance object.
*/
nsresult ns4xPlugin :: CreateInstance(nsISupports *aOuter,
const nsIID &aIID,
void **aResult)
{
if (aResult == NULL) {
return NS_ERROR_NULL_POINTER;
}
*aResult = NULL;
nsISupports *inst;
inst = nsnull;
inst = (nsISupports *)(nsIPluginInstance *)new ns4xPluginInstance(&fCallbacks);
if (inst == NULL) {
return NS_ERROR_OUT_OF_MEMORY;
}
nsresult res = inst->QueryInterface(aIID, aResult);
if (res != NS_OK) {
// We didn't get the right interface, so clean up
delete inst;
}
return res;
}
nsresult ns4xPlugin :: LockFactory(PRBool aLock)
{
// Not implemented in simplest case.
return NS_OK;
}
NS_METHOD ns4xPlugin :: CreatePluginInstance(nsISupports *aOuter, REFNSIID aIID,
const char* aPluginMIMEType,
void **aResult)
{
return CreateInstance(aOuter, aIID, aResult);
}
nsresult
ns4xPlugin::Initialize(void)
{
return NS_OK;
}
nsresult
ns4xPlugin::Shutdown(void)
{
if (nsnull != fShutdownEntry)
{
#ifdef NS_DEBUG
printf("shutting down plugin %08x\n", this);
#endif
fShutdownEntry();
fShutdownEntry = nsnull;
}
NS_IF_RELEASE(mPluginManager);
NS_IF_RELEASE(mMalloc);
return NS_OK;
}
nsresult
ns4xPlugin::GetMIMEDescription(const char* *resultingDesc)
{
printf("plugin getmimedescription called\n");
*resultingDesc = "";
return NS_OK; // XXX make a callback, etc.
}
nsresult
ns4xPlugin::GetValue(nsPluginVariable variable, void *value)
{
printf("plugin getvalue %d called\n", variable);
return NS_OK;
}
////////////////////////////////////////////////////////////////////////
//
// Static callbacks that get routed back through the new C++ API
//
NPError NP_EXPORT
ns4xPlugin::_geturl(NPP npp, const char* relativeURL, const char* target)
{
if(!npp)
return NPERR_INVALID_INSTANCE_ERROR;
nsIPluginInstance *inst = (nsIPluginInstance *) npp->ndata;
NS_ASSERTION(inst != NULL, "null instance");
NS_ASSERTION(mPluginManager != NULL, "null manager");
if (inst == NULL)
return NPERR_INVALID_INSTANCE_ERROR;
nsIPluginStreamListener* listener = nsnull;
if(target == nsnull)
inst->NewStream(&listener);
if(mPluginManager->GetURL(inst, relativeURL, target, listener) != NS_OK)
return NPERR_GENERIC_ERROR;
return NPERR_NO_ERROR;
}
NPError NP_EXPORT
ns4xPlugin::_geturlnotify(NPP npp, const char* relativeURL, const char* target,
void* notifyData)
{
if(!npp)
return NPERR_INVALID_INSTANCE_ERROR;
nsIPluginInstance *inst = (nsIPluginInstance *) npp->ndata;
NS_ASSERTION(inst != NULL, "null instance");
NS_ASSERTION(mPluginManager != NULL, "null manager");
if (inst == NULL)
return NPERR_INVALID_INSTANCE_ERROR;
nsIPluginStreamListener* listener = nsnull;
if(target == nsnull)
((ns4xPluginInstance*)inst)->NewNotifyStream(&listener, notifyData);
if(mPluginManager->GetURL(inst, relativeURL, target, listener) != NS_OK)
return NPERR_GENERIC_ERROR;
return NPERR_NO_ERROR;
}
NPError NP_EXPORT
ns4xPlugin::_posturlnotify(NPP npp, const char* relativeURL, const char *target,
uint32 len, const char *buf, NPBool file,
void* notifyData)
{
if(!npp)
return NPERR_INVALID_INSTANCE_ERROR;
nsIPluginInstance *inst = (nsIPluginInstance *) npp->ndata;
NS_ASSERTION(inst != NULL, "null instance");
NS_ASSERTION(mPluginManager != NULL, "null manager");
if (inst == NULL)
return NPERR_INVALID_INSTANCE_ERROR;
nsIPluginStreamListener* listener = nsnull;
if(target == nsnull)
((ns4xPluginInstance*)inst)->NewNotifyStream(&listener, notifyData);
if(mPluginManager->PostURL(inst, relativeURL, len, buf, file, target, listener) != NS_OK)
return NPERR_GENERIC_ERROR;
return NPERR_NO_ERROR;
}
NPError NP_EXPORT
ns4xPlugin::_posturl(NPP npp, const char* relativeURL, const char *target, uint32 len,
const char *buf, NPBool file)
{
if(!npp)
return NPERR_INVALID_INSTANCE_ERROR;
nsIPluginInstance *inst = (nsIPluginInstance *) npp->ndata;
NS_ASSERTION(inst != NULL, "null instance");
NS_ASSERTION(mPluginManager != NULL, "null manager");
if (inst == NULL)
return NPERR_INVALID_INSTANCE_ERROR;
nsIPluginStreamListener* listener = nsnull;
if(target == nsnull)
inst->NewStream(&listener);
if(mPluginManager->PostURL(inst, relativeURL, len, buf, file, target, listener) != NS_OK)
return NPERR_GENERIC_ERROR;
return NPERR_NO_ERROR;
}
////////////////////////////////////////////////////////////////////////
/**
* A little helper class used to wrap up plugin manager streams (that is,
* streams from the plugin to the browser).
*/
class ns4xStreamWrapper
{
protected:
nsIOutputStream *fStream;
NPStream fNPStream;
public:
ns4xStreamWrapper(nsIOutputStream* stream);
~ns4xStreamWrapper();
void GetStream(nsIOutputStream* &result);
NPStream*
GetNPStream(void) {
return &fNPStream;
};
};
ns4xStreamWrapper::ns4xStreamWrapper(nsIOutputStream* stream)
: fStream(stream)
{
NS_ASSERTION(stream != NULL, "bad stream");
fStream = stream;
NS_ADDREF(fStream);
memset(&fNPStream, 0, sizeof(fNPStream));
fNPStream.ndata = (void*) this;
}
ns4xStreamWrapper::~ns4xStreamWrapper(void)
{
fStream->Close();
NS_IF_RELEASE(fStream);
}
void
ns4xStreamWrapper::GetStream(nsIOutputStream* &result)
{
result = fStream;
NS_IF_ADDREF(fStream);
}
////////////////////////////////////////////////////////////////////////
NPError NP_EXPORT
ns4xPlugin::_newstream(NPP npp, NPMIMEType type, const char* window, NPStream* *result)
{
if(!npp)
return NPERR_INVALID_INSTANCE_ERROR;
nsIPluginInstance *inst = (nsIPluginInstance *) npp->ndata;
NS_ASSERTION(inst != NULL, "null instance");
if (inst == NULL)
return NPERR_INVALID_INSTANCE_ERROR;
nsIOutputStream* stream;
nsIPluginInstancePeer *peer;
if (NS_OK == inst->GetPeer(&peer))
{
if (peer->NewStream((const char*) type, window, &stream) != NS_OK)
{
NS_RELEASE(peer);
return NPERR_GENERIC_ERROR;
}
ns4xStreamWrapper* wrapper = new ns4xStreamWrapper(stream);
if (wrapper == NULL)
{
NS_RELEASE(peer);
NS_RELEASE(stream);
return NPERR_OUT_OF_MEMORY_ERROR;
}
(*result) = wrapper->GetNPStream();
NS_RELEASE(peer);
return NPERR_NO_ERROR;
}
else
return NPERR_GENERIC_ERROR;
}
int32 NP_EXPORT
ns4xPlugin::_write(NPP npp, NPStream *pstream, int32 len, void *buffer)
{
// negative return indicates failure to the plugin
if(!npp)
return -1;
ns4xStreamWrapper* wrapper = (ns4xStreamWrapper*) pstream->ndata;
NS_ASSERTION(wrapper != NULL, "null stream");
if (wrapper == NULL)
return -1;
nsIOutputStream* stream;
wrapper->GetStream(stream);
PRUint32 count = 0;
nsresult rv = stream->Write((char *)buffer, len, &count);
NS_RELEASE(stream);
if(rv != NS_OK)
return -1;
return (int32)count;
}
NPError NP_EXPORT
ns4xPlugin::_destroystream(NPP npp, NPStream *pstream, NPError reason)
{
if(!npp)
return NPERR_INVALID_INSTANCE_ERROR;
nsISupports* stream = (nsISupports*) pstream->ndata;
nsIPluginStreamListener* listener;
// DestroyStream can kill two kinds of streams: NPP derived and
// NPN derived.
// check to see if they're trying to kill a NPP stream
if(stream->QueryInterface(kIPluginStreamListenerIID, (void**)&listener) == NS_OK)
{
// XXX we should try to kill this listener here somehow
NS_RELEASE(listener);
return NPERR_NO_ERROR;
}
ns4xStreamWrapper* wrapper = (ns4xStreamWrapper*) pstream->ndata;
NS_ASSERTION(wrapper != NULL, "null wrapper");
if (wrapper == NULL)
return NPERR_INVALID_PARAM;
// This will release the wrapped nsIOutputStream.
delete wrapper;
return NPERR_NO_ERROR;
}
void NP_EXPORT
ns4xPlugin::_status(NPP npp, const char *message)
{
if(!npp)
return;
nsIPluginInstance *inst = (nsIPluginInstance *) npp->ndata;
NS_ASSERTION(inst != NULL, "null instance");
if (inst == NULL)
return;
nsIPluginInstancePeer *peer;
if (NS_OK == inst->GetPeer(&peer))
{
peer->ShowStatus(message);
NS_RELEASE(peer);
}
}
void NP_EXPORT
ns4xPlugin::_memfree (void *ptr)
{
if(ptr)
mMalloc->Free(ptr);
}
uint32 NP_EXPORT
ns4xPlugin::_memflush(uint32 size)
{
mMalloc->HeapMinimize();
return 0;
}
void NP_EXPORT
ns4xPlugin::_reloadplugins(NPBool reloadPages)
{
mPluginManager->ReloadPlugins(reloadPages);
}
void NP_EXPORT
ns4xPlugin::_invalidaterect(NPP npp, NPRect *invalidRect)
{
if(!npp)
return;
nsIPluginInstance *inst = (nsIPluginInstance *) npp->ndata;
NS_ASSERTION(inst != NULL, "null instance");
if (inst == NULL)
return;
nsIPluginInstancePeer *peer;
nsIWindowlessPluginInstancePeer *wpeer;
if (NS_OK == inst->GetPeer(&peer))
{
if (NS_OK == peer->QueryInterface(kIWindowlessPluginInstancePeerIID, (void **)&wpeer))
{
// XXX nsRect & NPRect are structurally equivalent
wpeer->InvalidateRect((nsPluginRect *)invalidRect);
NS_RELEASE(wpeer);
}
NS_RELEASE(peer);
}
}
void NP_EXPORT
ns4xPlugin::_invalidateregion(NPP npp, NPRegion invalidRegion)
{
if(!npp)
return;
nsIPluginInstance *inst = (nsIPluginInstance *) npp->ndata;
NS_ASSERTION(inst != NULL, "null instance");
if (inst == NULL)
return;
nsIPluginInstancePeer *peer;
nsIWindowlessPluginInstancePeer *wpeer;
if (NS_OK == inst->GetPeer(&peer))
{
if (NS_OK == peer->QueryInterface(kIWindowlessPluginInstancePeerIID, (void **)&wpeer))
{
// XXX nsRegion & NPRegion are typedef'd to the same thing
wpeer->InvalidateRegion((nsPluginRegion)invalidRegion);
NS_RELEASE(wpeer);
}
NS_RELEASE(peer);
}
}
void NP_EXPORT
ns4xPlugin::_forceredraw(NPP npp)
{
if(!npp)
return;
nsIPluginInstance *inst = (nsIPluginInstance *) npp->ndata;
NS_ASSERTION(inst != NULL, "null instance");
if (inst == NULL)
return;
nsIPluginInstancePeer *peer;
nsIWindowlessPluginInstancePeer *wpeer;
if (NS_OK == inst->GetPeer(&peer))
{
if (NS_OK == peer->QueryInterface(kIWindowlessPluginInstancePeerIID, (void **)&wpeer))
{
wpeer->ForceRedraw();
NS_RELEASE(wpeer);
}
NS_RELEASE(peer);
}
}
NPError NP_EXPORT
ns4xPlugin::_getvalue(NPP npp, NPNVariable variable, void *result)
{
if(!npp)
return NPERR_INVALID_INSTANCE_ERROR;
nsIPluginInstance *inst = (nsIPluginInstance *) npp->ndata;
NS_ASSERTION(inst != NULL, "null instance");
if (inst == NULL)
return NPERR_INVALID_INSTANCE_ERROR;
nsIPluginInstancePeer *peer;
if (NS_OK == inst->GetPeer(&peer))
{
nsresult rv;
// XXX Note that for backwards compatibility, the old NPNVariables
// map correctly to NPPluginManagerVariables.
rv = peer->GetValue((nsPluginInstancePeerVariable)variable, result);
NS_RELEASE(peer);
return rv;
}
else
return NPERR_GENERIC_ERROR;
}
NPError NP_EXPORT
ns4xPlugin::_setvalue(NPP npp, NPPVariable variable, void *result)
{
if(!npp)
return NPERR_INVALID_INSTANCE_ERROR;
ns4xPluginInstance *inst = (ns4xPluginInstance *) npp->ndata;
NS_ASSERTION(inst != NULL, "null instance");
if (inst == NULL)
return NPERR_INVALID_INSTANCE_ERROR;
switch (variable)
{
case NPPVpluginWindowBool:
return inst->SetWindowless(*((NPBool *)result));
case NPPVpluginTransparentBool:
return inst->SetTransparent(*((NPBool *)result));
default:
return NPERR_NO_ERROR;
}
#if 0
nsIPluginInstancePeer *peer;
if (NS_OK == inst->GetPeer(&peer))
{
nsresult rv;
// XXX Note that for backwards compatibility, the old NPPVariables
// map correctly to NPPluginVariables.
rv = peer->SetValue((nsPluginInstancePeerVariable)variable, result);
NS_RELEASE(peer);
return rv;
}
else
return NS_ERROR_UNEXPECTED;
#endif
}
NPError NP_EXPORT
ns4xPlugin::_requestread(NPStream *pstream, NPByteRange *rangeList)
{
return NPERR_STREAM_NOT_SEEKABLE;
}
////////////////////////////////////////////////////////////////////////
//
// On 68K Mac (XXX still supported?), we need to make sure that the
// pointers are in D0 for the following functions that return pointers.
//
#if defined(XP_MAC) && !defined(powerc)
#pragma pointers_in_D0
#endif
JRIEnv* NP_EXPORT
ns4xPlugin::_getJavaEnv(void)
{
return NULL;
}
const char * NP_EXPORT
ns4xPlugin::_useragent(NPP npp)
{
NS_ASSERTION(mPluginManager != NULL, "null pluginmanager");
if (mPluginManager == NULL)
return NULL;
char *retstr;
mPluginManager->UserAgent((const char **)&retstr);
return retstr;
}
void * NP_EXPORT
ns4xPlugin::_memalloc (uint32 size)
{
return mMalloc->Alloc(size);
}
java_lang_Class* NP_EXPORT
ns4xPlugin::_getJavaClass(void* handle)
{
// Is this just a generic call into the Java VM?
return NULL;
}
jref NP_EXPORT
ns4xPlugin::_getJavaPeer(NPP npp)
{
return NULL;
}
// eof
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