mirror of
https://github.com/rn10950/RetroZilla.git
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312 lines
8.5 KiB
C++
312 lines
8.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef ns4xPlugin_h__
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#define ns4xPlugin_h__
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#include "nsIPlugin.h"
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#include "nsIPluginInstancePeer.h"
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#include "nsIWindowlessPlugInstPeer.h"
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#include "prlink.h" // for PRLibrary
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#include "npupp.h"
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#include "nsPluginHostImpl.h"
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////////////////////////////////////////////////////////////////////////
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/*
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* Use this macro before each exported function
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* (between the return address and the function
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* itself), to ensure that the function has the
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* right calling conventions on Win16.
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*/
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#ifdef XP_OS2
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#define NP_EXPORT _System
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#else
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#define NP_EXPORT
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#endif
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#if defined(XP_WIN)
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#define NS_4XPLUGIN_CALLBACK(_type, _name) _type (__stdcall * _name)
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#elif defined(XP_OS2)
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#define NS_4XPLUGIN_CALLBACK(_type, _name) _type (_System * _name)
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#else
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#define NS_4XPLUGIN_CALLBACK(_type, _name) _type (* _name)
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#endif
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////////////////////////////////////////////////////////////////////////
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// XXX These are defined in platform specific FE directories right now :-/
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#if defined(XP_WIN) || defined(XP_UNIX) || defined(XP_BEOS) || defined(XP_OS2)
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typedef NS_4XPLUGIN_CALLBACK(NPError, NP_GETENTRYPOINTS) (NPPluginFuncs* pCallbacks);
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typedef NS_4XPLUGIN_CALLBACK(NPError, NP_PLUGININIT) (const NPNetscapeFuncs* pCallbacks);
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typedef NS_4XPLUGIN_CALLBACK(NPError, NP_PLUGINUNIXINIT) (const NPNetscapeFuncs* pCallbacks,NPPluginFuncs* fCallbacks);
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typedef NS_4XPLUGIN_CALLBACK(NPError, NP_PLUGINSHUTDOWN) (void);
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#endif
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#if defined(XP_MAC) || defined(XP_MACOSX)
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typedef NS_4XPLUGIN_CALLBACK(NPError, NP_PLUGINSHUTDOWN) (void);
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typedef NS_4XPLUGIN_CALLBACK(NPError, NP_MAIN) (NPNetscapeFuncs* nCallbacks, NPPluginFuncs* pCallbacks, NPP_ShutdownUPP* unloadUpp);
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#endif
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class nsIServiceManagerObsolete;
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class nsIMemory;
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////////////////////////////////////////////////////////////////////////
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/**
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* A 5.0 wrapper for a 4.x style plugin.
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*/
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class ns4xPlugin : public nsIPlugin
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{
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public:
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ns4xPlugin(NPPluginFuncs* callbacks, PRLibrary* aLibrary,
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NP_PLUGINSHUTDOWN aShutdown,
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nsIServiceManagerObsolete* serviceMgr);
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virtual ~ns4xPlugin(void);
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NS_DECL_ISUPPORTS
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//nsIFactory interface
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NS_IMETHOD CreateInstance(nsISupports *aOuter,
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REFNSIID aIID,
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void **aResult);
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NS_IMETHOD LockFactory(PRBool aLock);
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//nsIPlugin interface
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/**
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* Creates a new plugin instance, based on a MIME type. This
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* allows different impelementations to be created depending on
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* the specified MIME type.
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*/
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NS_IMETHOD CreatePluginInstance(nsISupports *aOuter, REFNSIID aIID,
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const char* aPluginMIMEType,
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void **aResult);
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NS_IMETHOD Initialize(void);
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NS_IMETHOD Shutdown(void);
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NS_IMETHOD GetMIMEDescription(const char* *resultingDesc);
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NS_IMETHOD GetValue(nsPluginVariable variable, void *value);
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////////////////////////////////////////////////////////////////////
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// ns4xPlugin-specific methods
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/**
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* A static factory method for constructing 4.x plugins. Constructs
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* and initializes an ns4xPlugin object, and returns it in
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* <b>result</b>.
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*/
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static nsresult
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CreatePlugin(nsIServiceManagerObsolete* aServiceMgr,
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const char* aFileName,
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const char* aFullPath,
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PRLibrary* aLibrary,
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nsIPlugin** aResult);
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#if defined(XP_MAC) || defined(XP_MACOSX)
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void
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SetPluginRefNum(short aRefNum);
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#endif
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protected:
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/**
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* Ensures that the static CALLBACKS is properly initialized
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*/
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static void CheckClassInitialized(void);
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#if defined(XP_MAC) || defined(XP_MACOSX)
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short fPluginRefNum;
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#endif
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/**
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* The plugin-side callbacks that the browser calls. One set of
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* plugin callbacks for each plugin.
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*/
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NPPluginFuncs fCallbacks;
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PRLibrary* fLibrary;
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NP_PLUGINSHUTDOWN fShutdownEntry;
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/**
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* The browser-side callbacks that a 4.x-style plugin calls.
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*/
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static NPNetscapeFuncs CALLBACKS;
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};
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PR_BEGIN_EXTERN_C
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NPObject* NP_EXPORT
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_getwindowobject(NPP npp);
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NPObject* NP_EXPORT
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_getpluginelement(NPP npp);
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NPIdentifier NP_EXPORT
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_getstringidentifier(const NPUTF8* name);
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void NP_EXPORT
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_getstringidentifiers(const NPUTF8** names, int32_t nameCount,
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NPIdentifier *identifiers);
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bool NP_EXPORT
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_identifierisstring(NPIdentifier identifiers);
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NPIdentifier NP_EXPORT
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_getintidentifier(int32_t intid);
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NPUTF8* NP_EXPORT
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_utf8fromidentifier(NPIdentifier identifier);
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int32_t NP_EXPORT
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_intfromidentifier(NPIdentifier identifier);
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NPObject* NP_EXPORT
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_createobject(NPP npp, NPClass* aClass);
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NPObject* NP_EXPORT
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_retainobject(NPObject* npobj);
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void NP_EXPORT
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_releaseobject(NPObject* npobj);
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bool NP_EXPORT
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_invoke(NPP npp, NPObject* npobj, NPIdentifier method, const NPVariant *args,
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uint32_t argCount, NPVariant *result);
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bool NP_EXPORT
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_invokeDefault(NPP npp, NPObject* npobj, const NPVariant *args,
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uint32_t argCount, NPVariant *result);
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bool NP_EXPORT
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_evaluate(NPP npp, NPObject* npobj, NPString *script, NPVariant *result);
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bool NP_EXPORT
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_getproperty(NPP npp, NPObject* npobj, NPIdentifier property,
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NPVariant *result);
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bool NP_EXPORT
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_setproperty(NPP npp, NPObject* npobj, NPIdentifier property,
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const NPVariant *value);
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bool NP_EXPORT
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_removeproperty(NPP npp, NPObject* npobj, NPIdentifier property);
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bool NP_EXPORT
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_hasproperty(NPP npp, NPObject* npobj, NPIdentifier propertyName);
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bool NP_EXPORT
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_hasmethod(NPP npp, NPObject* npobj, NPIdentifier methodName);
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void NP_EXPORT
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_releasevariantvalue(NPVariant *variant);
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void NP_EXPORT
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_setexception(NPObject* npobj, const NPUTF8 *message);
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PR_END_EXTERN_C
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const char *
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PeekException();
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void
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PopException();
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class NPPStack
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{
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public:
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static NPP Peek()
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{
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return sCurrentNPP;
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}
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protected:
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static NPP sCurrentNPP;
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};
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// XXXjst: The NPPAutoPusher stack is a bit redundant now that
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// PluginDestructionGuard exists, and could thus be replaced by code
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// that uses the PluginDestructionGuard list of plugins on the
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// stack. But they're not identical, and to minimize code changes
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// we're keeping both for the moment, and making NPPAutoPusher inherit
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// the PluginDestructionGuard class to avoid having to keep two
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// separate objects on the stack since we always want a
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// PluginDestructionGuard where we use an NPPAutoPusher.
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class NPPAutoPusher : public NPPStack,
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protected PluginDestructionGuard
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{
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public:
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NPPAutoPusher(NPP npp)
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: PluginDestructionGuard(npp),
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mOldNPP(sCurrentNPP)
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{
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NS_ASSERTION(npp, "Uh, null npp passed to NPPAutoPusher!");
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sCurrentNPP = npp;
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}
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~NPPAutoPusher()
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{
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sCurrentNPP = mOldNPP;
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}
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private:
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NPP mOldNPP;
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};
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class NPPExceptionAutoHolder
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{
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public:
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NPPExceptionAutoHolder();
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~NPPExceptionAutoHolder();
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protected:
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char *mOldException;
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};
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#endif // ns4xPlugin_h__
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