gecko/modules/plugin/sdk/samples/common/npp_gate.cpp

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/* -*- 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_*)
#include "pluginbase.h"
// here the plugin creates a plugin instance object which
// will be associated with this newly created NPP instance and
// will do all the necessary job
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NPError NPP_New(NPMIMEType pluginType, NPP instance, uint16_t mode, int16_t argc, char* argn[], char* argv[], NPSavedData* saved)
{
if (!instance)
return NPERR_INVALID_INSTANCE_ERROR;
// create a new plugin instance object
// initialization will be done when the associated window is ready
nsPluginCreateData ds;
ds.instance = instance;
ds.type = pluginType;
ds.mode = mode;
ds.argc = argc;
ds.argn = argn;
ds.argv = argv;
ds.saved = saved;
nsPluginInstanceBase * plugin = NS_NewPluginInstance(&ds);
if (!plugin)
return NPERR_OUT_OF_MEMORY_ERROR;
// associate the plugin instance object with NPP instance
instance->pdata = (void *)plugin;
return NPERR_NO_ERROR;
}
// here is the place to clean up and destroy the nsPluginInstance object
NPError NPP_Destroy (NPP instance, NPSavedData** save)
{
if (!instance)
return NPERR_INVALID_INSTANCE_ERROR;
nsPluginInstanceBase * plugin = (nsPluginInstanceBase *)instance->pdata;
if (plugin) {
plugin->shut();
NS_DestroyPluginInstance(plugin);
}
return NPERR_NO_ERROR;
}
// 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)
return NPERR_INVALID_INSTANCE_ERROR;
if (!pNPWindow)
return NPERR_GENERIC_ERROR;
nsPluginInstanceBase * plugin = (nsPluginInstanceBase *)instance->pdata;
if (!plugin)
return NPERR_GENERIC_ERROR;
// window just created
if (!plugin->isInitialized() && pNPWindow->window) {
if (!plugin->init(pNPWindow)) {
NS_DestroyPluginInstance(plugin);
return NPERR_MODULE_LOAD_FAILED_ERROR;
}
}
// window goes away
if (!pNPWindow->window && plugin->isInitialized())
return plugin->SetWindow(pNPWindow);
// window resized?
if (plugin->isInitialized() && pNPWindow->window)
return plugin->SetWindow(pNPWindow);
// this should not happen, nothing to do
if (!pNPWindow->window && !plugin->isInitialized())
return plugin->SetWindow(pNPWindow);
return NPERR_NO_ERROR;
}
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NPError NPP_NewStream(NPP instance, NPMIMEType type, NPStream* stream, NPBool seekable, uint16_t* stype)
{
if (!instance)
return NPERR_INVALID_INSTANCE_ERROR;
nsPluginInstanceBase * plugin = (nsPluginInstanceBase *)instance->pdata;
if (!plugin)
return NPERR_GENERIC_ERROR;
return plugin->NewStream(type, stream, seekable, stype);
}
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int32_t NPP_WriteReady (NPP instance, NPStream *stream)
{
if (!instance)
return 0x0fffffff;
nsPluginInstanceBase * plugin = (nsPluginInstanceBase *)instance->pdata;
if (!plugin)
return 0x0fffffff;
return plugin->WriteReady(stream);
}
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int32_t NPP_Write (NPP instance, NPStream *stream, int32_t offset, int32_t len, void *buffer)
{
if (!instance)
return len;
nsPluginInstanceBase * plugin = (nsPluginInstanceBase *)instance->pdata;
if (!plugin)
return len;
return plugin->Write(stream, offset, len, buffer);
}
NPError NPP_DestroyStream (NPP instance, NPStream *stream, NPError reason)
{
if (!instance)
return NPERR_INVALID_INSTANCE_ERROR;
nsPluginInstanceBase * plugin = (nsPluginInstanceBase *)instance->pdata;
if (!plugin)
return NPERR_GENERIC_ERROR;
return plugin->DestroyStream(stream, reason);
}
void NPP_StreamAsFile (NPP instance, NPStream* stream, const char* fname)
{
if (!instance)
return;
nsPluginInstanceBase * plugin = (nsPluginInstanceBase *)instance->pdata;
if (!plugin)
return;
plugin->StreamAsFile(stream, fname);
}
void NPP_Print (NPP instance, NPPrint* printInfo)
{
if (!instance)
return;
nsPluginInstanceBase * plugin = (nsPluginInstanceBase *)instance->pdata;
if (!plugin)
return;
plugin->Print(printInfo);
}
void NPP_URLNotify(NPP instance, const char* url, NPReason reason, void* notifyData)
{
if (!instance)
return;
nsPluginInstanceBase * plugin = (nsPluginInstanceBase *)instance->pdata;
if (!plugin)
return;
plugin->URLNotify(url, reason, notifyData);
}
NPError NPP_GetValue(NPP instance, NPPVariable variable, void *value)
{
if (!instance)
return NPERR_INVALID_INSTANCE_ERROR;
nsPluginInstanceBase * plugin = (nsPluginInstanceBase *)instance->pdata;
if (!plugin)
return NPERR_GENERIC_ERROR;
return plugin->GetValue(variable, value);
}
NPError NPP_SetValue(NPP instance, NPNVariable variable, void *value)
{
if (!instance)
return NPERR_INVALID_INSTANCE_ERROR;
nsPluginInstanceBase * plugin = (nsPluginInstanceBase *)instance->pdata;
if (!plugin)
return NPERR_GENERIC_ERROR;
return plugin->SetValue(variable, value);
}
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int16_t NPP_HandleEvent(NPP instance, void* event)
{
if (!instance)
return 0;
nsPluginInstanceBase * plugin = (nsPluginInstanceBase *)instance->pdata;
if (!plugin)
return 0;
return plugin->HandleEvent(event);
}