mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-11-16 12:30:13 +01:00
254 lines
7.4 KiB
C++
254 lines
7.4 KiB
C++
/* -*- 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 "plugin.h"
|
|
#include "nsIServiceManager.h"
|
|
#include "nsIMemory.h"
|
|
#include "nsISupportsUtils.h" // this is where some useful macros defined
|
|
|
|
// service manager which will give the access to all public browser services
|
|
// we will use memory service as an illustration
|
|
nsIServiceManager * gServiceManager = NULL;
|
|
|
|
// Unix needs this
|
|
#ifdef XP_UNIX
|
|
#define MIME_TYPES_HANDLED "application/simple-plugin"
|
|
#define PLUGIN_NAME "Simple Plugin Example for Mozilla"
|
|
#define MIME_TYPES_DESCRIPTION MIME_TYPES_HANDLED"::"PLUGIN_NAME
|
|
#define PLUGIN_DESCRIPTION PLUGIN_NAME " (Plug-ins SDK sample)"
|
|
|
|
char* NPP_GetMIMEDescription(void)
|
|
{
|
|
return(MIME_TYPES_DESCRIPTION);
|
|
}
|
|
|
|
// get values per plugin
|
|
NPError NS_PluginGetValue(NPPVariable aVariable, void *aValue)
|
|
{
|
|
NPError err = NPERR_NO_ERROR;
|
|
switch (aVariable) {
|
|
case NPPVpluginNameString:
|
|
*((char **)aValue) = PLUGIN_NAME;
|
|
break;
|
|
case NPPVpluginDescriptionString:
|
|
*((char **)aValue) = PLUGIN_DESCRIPTION;
|
|
break;
|
|
default:
|
|
err = NPERR_INVALID_PARAM;
|
|
break;
|
|
}
|
|
return err;
|
|
}
|
|
#endif //XP_UNIX
|
|
|
|
//////////////////////////////////////
|
|
//
|
|
// general initialization and shutdown
|
|
//
|
|
NPError NS_PluginInitialize()
|
|
{
|
|
// this is probably a good place to get the service manager
|
|
// note that Mozilla will add reference, so do not forget to release
|
|
nsISupports * sm = NULL;
|
|
|
|
NPN_GetValue(NULL, NPNVserviceManager, &sm);
|
|
|
|
// Mozilla returns nsIServiceManager so we can use it directly; doing QI on
|
|
// nsISupports here can still be more appropriate in case something is changed
|
|
// in the future so we don't need to do casting of any sort.
|
|
if(sm) {
|
|
sm->QueryInterface(NS_GET_IID(nsIServiceManager), (void**)&gServiceManager);
|
|
NS_RELEASE(sm);
|
|
}
|
|
|
|
return NPERR_NO_ERROR;
|
|
}
|
|
|
|
void NS_PluginShutdown()
|
|
{
|
|
// we should release the service manager
|
|
NS_IF_RELEASE(gServiceManager);
|
|
gServiceManager = NULL;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////
|
|
//
|
|
// construction and destruction of our plugin instance object
|
|
//
|
|
nsPluginInstanceBase * NS_NewPluginInstance(nsPluginCreateData * aCreateDataStruct)
|
|
{
|
|
if(!aCreateDataStruct)
|
|
return NULL;
|
|
|
|
nsPluginInstance * plugin = new nsPluginInstance(aCreateDataStruct->instance);
|
|
return plugin;
|
|
}
|
|
|
|
void NS_DestroyPluginInstance(nsPluginInstanceBase * aPlugin)
|
|
{
|
|
if(aPlugin)
|
|
delete (nsPluginInstance *)aPlugin;
|
|
}
|
|
|
|
////////////////////////////////////////
|
|
//
|
|
// nsPluginInstance class implementation
|
|
//
|
|
nsPluginInstance::nsPluginInstance(NPP aInstance) : nsPluginInstanceBase(),
|
|
mInstance(aInstance),
|
|
mInitialized(FALSE),
|
|
mScriptablePeer(NULL)
|
|
{
|
|
mString[0] = '\0';
|
|
}
|
|
|
|
nsPluginInstance::~nsPluginInstance()
|
|
{
|
|
// mScriptablePeer may be also held by the browser
|
|
// so releasing it here does not guarantee that it is over
|
|
// we should take precaution in case it will be called later
|
|
// and zero its mPlugin member
|
|
mScriptablePeer->SetInstance(NULL);
|
|
NS_IF_RELEASE(mScriptablePeer);
|
|
}
|
|
|
|
NPBool nsPluginInstance::init(NPWindow* aWindow)
|
|
{
|
|
if(aWindow == NULL)
|
|
return FALSE;
|
|
|
|
mInitialized = TRUE;
|
|
return TRUE;
|
|
}
|
|
|
|
void nsPluginInstance::shut()
|
|
{
|
|
mInitialized = FALSE;
|
|
}
|
|
|
|
NPBool nsPluginInstance::isInitialized()
|
|
{
|
|
return mInitialized;
|
|
}
|
|
|
|
void nsPluginInstance::getVersion(char* *aVersion)
|
|
{
|
|
const char *ua = NPN_UserAgent(mInstance);
|
|
char*& version = *aVersion;
|
|
|
|
// although we can use NPAPI NPN_MemAlloc call to allocate memory:
|
|
// version = (char*)NPN_MemAlloc(strlen(ua) + 1);
|
|
// for illustration purposed we use the service manager to access
|
|
// the memory service provided by Mozilla
|
|
nsIMemory * nsMemoryService = NULL;
|
|
|
|
if (gServiceManager) {
|
|
// get service using its contract id and use it to allocate the memory
|
|
gServiceManager->GetServiceByContractID("@mozilla.org/xpcom/memory-service;1", NS_GET_IID(nsIMemory), (void **)&nsMemoryService);
|
|
if(nsMemoryService)
|
|
version = (char *)nsMemoryService->Alloc(strlen(ua) + 1);
|
|
}
|
|
|
|
if (version)
|
|
strcpy(version, ua);
|
|
|
|
// release service
|
|
NS_IF_RELEASE(nsMemoryService);
|
|
}
|
|
|
|
// ==============================
|
|
// ! Scriptability related code !
|
|
// ==============================
|
|
//
|
|
// here the plugin is asked by Mozilla to tell if it is scriptable
|
|
// we should return a valid interface id and a pointer to
|
|
// nsScriptablePeer interface which we should have implemented
|
|
// and which should be defined in the corressponding *.xpt file
|
|
// in the bin/components folder
|
|
NPError nsPluginInstance::GetValue(NPPVariable aVariable, void *aValue)
|
|
{
|
|
NPError rv = NPERR_NO_ERROR;
|
|
|
|
switch (aVariable) {
|
|
case NPPVpluginScriptableInstance: {
|
|
// addref happens in getter, so we don't addref here
|
|
nsISimplePlugin * scriptablePeer = getScriptablePeer();
|
|
if (scriptablePeer) {
|
|
*(nsISupports **)aValue = scriptablePeer;
|
|
} else
|
|
rv = NPERR_OUT_OF_MEMORY_ERROR;
|
|
}
|
|
break;
|
|
|
|
case NPPVpluginScriptableIID: {
|
|
static nsIID scriptableIID = NS_ISIMPLEPLUGIN_IID;
|
|
nsIID* ptr = (nsIID *)NPN_MemAlloc(sizeof(nsIID));
|
|
if (ptr) {
|
|
*ptr = scriptableIID;
|
|
*(nsIID **)aValue = ptr;
|
|
} else
|
|
rv = NPERR_OUT_OF_MEMORY_ERROR;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
// ==============================
|
|
// ! Scriptability related code !
|
|
// ==============================
|
|
//
|
|
// this method will return the scriptable object (and create it if necessary)
|
|
nsScriptablePeer* nsPluginInstance::getScriptablePeer()
|
|
{
|
|
if (!mScriptablePeer) {
|
|
mScriptablePeer = new nsScriptablePeer(this);
|
|
if(!mScriptablePeer)
|
|
return NULL;
|
|
|
|
NS_ADDREF(mScriptablePeer);
|
|
}
|
|
|
|
// add reference for the caller requesting the object
|
|
NS_ADDREF(mScriptablePeer);
|
|
return mScriptablePeer;
|
|
}
|