gecko/modules/plugin/samples/4x-scriptable/npp_gate.cpp

266 lines
7.0 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 ***** */
////////////////////////////////////////////////////////////
//
// Implementation of plugin entry points (NPP_*)
// most are just empty stubs for this particular plugin
//
#include "plugin.h"
NPError NPP_Initialize(void)
{
return NPERR_NO_ERROR;
}
void NPP_Shutdown(void)
{
}
// here the plugin creates an instance of our CPlugin object which
// will be associated with this newly created plugin instance and
// will do all the necessary job
NPError NPP_New(NPMIMEType pluginType,
NPP instance,
uint16 mode,
int16 argc,
char* argn[],
char* argv[],
NPSavedData* saved)
{
if(instance == NULL)
return NPERR_INVALID_INSTANCE_ERROR;
NPError rv = NPERR_NO_ERROR;
CPlugin * pPlugin = new CPlugin(instance);
if(pPlugin == NULL)
return NPERR_OUT_OF_MEMORY_ERROR;
instance->pdata = (void *)pPlugin;
return rv;
}
// here is the place to clean up and destroy the CPlugin object
NPError NPP_Destroy (NPP instance, NPSavedData** save)
{
if(instance == NULL)
return NPERR_INVALID_INSTANCE_ERROR;
NPError rv = NPERR_NO_ERROR;
CPlugin * pPlugin = (CPlugin *)instance->pdata;
if(pPlugin != NULL) {
pPlugin->shut();
delete pPlugin;
}
return rv;
}
// during this call we know when the plugin window is ready or
// is about to be destroyed so we can do some gui specific
// initialization and shutdown
NPError NPP_SetWindow (NPP instance, NPWindow* pNPWindow)
{
if(instance == NULL)
return NPERR_INVALID_INSTANCE_ERROR;
NPError rv = NPERR_NO_ERROR;
if(pNPWindow == NULL)
return NPERR_GENERIC_ERROR;
CPlugin * pPlugin = (CPlugin *)instance->pdata;
if(pPlugin == NULL)
return NPERR_GENERIC_ERROR;
// window just created
if(!pPlugin->isInitialized() && (pNPWindow->window != NULL)) {
if(!pPlugin->init(pNPWindow)) {
delete pPlugin;
pPlugin = NULL;
return NPERR_MODULE_LOAD_FAILED_ERROR;
}
}
// window goes away
if((pNPWindow->window == NULL) && pPlugin->isInitialized())
return NPERR_NO_ERROR;
// window resized
if(pPlugin->isInitialized() && (pNPWindow->window != NULL))
return NPERR_NO_ERROR;
// this should not happen, nothing to do
if((pNPWindow->window == NULL) && !pPlugin->isInitialized())
return NPERR_NO_ERROR;
return rv;
}
// ==============================
// ! 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 NPP_GetValue(NPP instance, NPPVariable variable, void *value)
{
if(instance == NULL)
return NPERR_INVALID_INSTANCE_ERROR;
NPError rv = NPERR_NO_ERROR;
if(instance == NULL)
return NPERR_GENERIC_ERROR;
CPlugin * pPlugin = (CPlugin *)instance->pdata;
if(pPlugin == NULL)
return NPERR_GENERIC_ERROR;
if (variable == NPPVpluginScriptableInstance) {
// addref happens in getter, so we don't addref here
nsI4xScriptablePlugin * scriptablePeer = pPlugin->getScriptablePeer();
if (scriptablePeer) {
*(nsISupports **)value = scriptablePeer;
} else {
rv = NPERR_OUT_OF_MEMORY_ERROR;
}
}
else if (variable == NPPVpluginScriptableIID) {
static nsIID scriptableIID = NS_I4XSCRIPTABLEPLUGIN_IID;
nsIID* ptr = (nsIID *)NPN_MemAlloc(sizeof(nsIID));
if (ptr) {
*ptr = scriptableIID;
*(nsIID **)value = ptr;
} else {
rv = NPERR_OUT_OF_MEMORY_ERROR;
}
}
return rv;
}
NPError NPP_NewStream(NPP instance,
NPMIMEType type,
NPStream* stream,
NPBool seekable,
uint16* stype)
{
if(instance == NULL)
return NPERR_INVALID_INSTANCE_ERROR;
NPError rv = NPERR_NO_ERROR;
return rv;
}
int32 NPP_WriteReady (NPP instance, NPStream *stream)
{
if(instance == NULL)
return NPERR_INVALID_INSTANCE_ERROR;
int32 rv = 0x0fffffff;
return rv;
}
int32 NPP_Write (NPP instance, NPStream *stream, int32 offset, int32 len, void *buffer)
{
if(instance == NULL)
return NPERR_INVALID_INSTANCE_ERROR;
int32 rv = len;
return rv;
}
NPError NPP_DestroyStream (NPP instance, NPStream *stream, NPError reason)
{
if(instance == NULL)
return NPERR_INVALID_INSTANCE_ERROR;
NPError rv = NPERR_NO_ERROR;
return rv;
}
void NPP_StreamAsFile (NPP instance, NPStream* stream, const char* fname)
{
if(instance == NULL)
return;
}
void NPP_Print (NPP instance, NPPrint* printInfo)
{
if(instance == NULL)
return;
}
void NPP_URLNotify(NPP instance, const char* url, NPReason reason, void* notifyData)
{
if(instance == NULL)
return;
}
NPError NPP_SetValue(NPP instance, NPNVariable variable, void *value)
{
if(instance == NULL)
return NPERR_INVALID_INSTANCE_ERROR;
NPError rv = NPERR_NO_ERROR;
return rv;
}
int16 NPP_HandleEvent(NPP instance, void* event)
{
if(instance == NULL)
return 0;
int16 rv = 0;
CPlugin * pPlugin = (CPlugin *)instance->pdata;
if (pPlugin)
rv = pPlugin->handleEvent(event);
return rv;
}
jref NPP_GetJavaClass (void)
{
return NULL;
}