121 lines
3.0 KiB
C++
121 lines
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the 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 Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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// ==============================
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// ! Scriptability related code !
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// ==============================
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//
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/////////////////////////////////////////////////////
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//
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// This file implements the nsScriptablePeer object
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// The native methods of this class are supposed to
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// be callable from JavaScript
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//
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#include "plugin.h"
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static NS_DEFINE_IID(kI4xScriptablePluginIID, NS_I4XSCRIPTABLEPLUGIN_IID);
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static NS_DEFINE_IID(kIClassInfoIID, NS_ICLASSINFO_IID);
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static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
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nsScriptablePeer::nsScriptablePeer(CPlugin* aPlugin)
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{
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mPlugin = aPlugin;
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mRefCnt = 0;
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}
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nsScriptablePeer::~nsScriptablePeer()
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{
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}
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// AddRef, Release and QueryInterface are common methods and must
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// be implemented for any interface
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NS_IMETHODIMP_(nsrefcnt) nsScriptablePeer::AddRef()
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{
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++mRefCnt;
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return mRefCnt;
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}
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NS_IMETHODIMP_(nsrefcnt) nsScriptablePeer::Release()
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{
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--mRefCnt;
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if (mRefCnt == 0) {
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delete this;
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return 0;
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}
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return mRefCnt;
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}
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// here nsScriptablePeer should return three interfaces it can be asked for by their iid's
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// static casts are necessary to ensure that correct pointer is returned
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NS_IMETHODIMP nsScriptablePeer::QueryInterface(const nsIID& aIID, void** aInstancePtr)
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{
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if(!aInstancePtr)
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return NS_ERROR_NULL_POINTER;
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if(aIID.Equals(kI4xScriptablePluginIID)) {
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*aInstancePtr = static_cast<nsI4xScriptablePlugin*>(this);
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AddRef();
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return NS_OK;
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}
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if(aIID.Equals(kIClassInfoIID)) {
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*aInstancePtr = static_cast<nsIClassInfo*>(this);
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AddRef();
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return NS_OK;
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}
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if(aIID.Equals(kISupportsIID)) {
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*aInstancePtr = static_cast<nsISupports*>(static_cast<nsI4xScriptablePlugin*>(this));
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AddRef();
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return NS_OK;
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}
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return NS_NOINTERFACE;
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}
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//
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// the following two methods will be callable from JavaScript
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//
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NS_IMETHODIMP nsScriptablePeer::ShowVersion()
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{
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if (mPlugin)
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mPlugin->showVersion();
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return NS_OK;
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}
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NS_IMETHODIMP nsScriptablePeer::Clear()
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{
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if (mPlugin)
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mPlugin->clear();
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return NS_OK;
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}
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NS_IMETHODIMP nsScriptablePeer::GetVersion(char * *aVersion)
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{
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if (mPlugin)
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mPlugin->getVersion(aVersion);
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return NS_OK;
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}
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