More Mac Plugin SDK changes. NOT PART OF BUILD

git-svn-id: svn://10.0.0.236/trunk@109085 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/modules/plugin/tools/sdk/samples/scriptable/mac/nsScriptablePeer.cpp

@@ -0,0 +1,127 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: NPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Netscape 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/NPL/
+ *
+ * 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 NPL, 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 NPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+// ==============================
+// ! Scriptability related code !
+// ==============================
+
+/////////////////////////////////////////////////////
+//
+// This file implements the nsScriptablePeer object
+// The native methods of this class are supposed to
+// be callable from JavaScript
+//
+#include "plugin.h"
+
+static NS_DEFINE_IID(kIScriptableIID, NS_ISCRIPTABLEPLUGIN_IID);
+static NS_DEFINE_IID(kIClassInfoIID, NS_ICLASSINFO_IID);
+static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
+
+nsScriptablePeer::nsScriptablePeer(nsPluginInstance* aPlugin)
+{
+  mPlugin = aPlugin;
+  mRefCnt = 0;
+}
+
+nsScriptablePeer::~nsScriptablePeer()
+{
+}
+
+// AddRef, Release and QueryInterface are common methods and must 
+// be implemented for any interface
+NS_IMETHODIMP_(nsrefcnt) nsScriptablePeer::AddRef() 
+{ 
+  ++mRefCnt; 
+  return mRefCnt; 
+} 
+
+NS_IMETHODIMP_(nsrefcnt) nsScriptablePeer::Release() 
+{ 
+  --mRefCnt; 
+  if (mRefCnt == 0) { 
+    delete this;
+    return 0; 
+  } 
+  return mRefCnt; 
+} 
+
+// here nsScriptablePeer should return three interfaces it can be asked for by their iid's
+// static casts are necessary to ensure that correct pointer is returned
+NS_IMETHODIMP nsScriptablePeer::QueryInterface(const nsIID& aIID, void** aInstancePtr) 
+{ 
+  if(!aInstancePtr) 
+    return NS_ERROR_NULL_POINTER; 
+
+  if(aIID.Equals(kIScriptableIID)) {
+    *aInstancePtr = static_cast<nsIScriptablePlugin*>(this); 
+    AddRef();
+    return NS_OK;
+  }
+
+  if(aIID.Equals(kIClassInfoIID)) {
+    *aInstancePtr = static_cast<nsIClassInfo*>(this); 
+    AddRef();
+    return NS_OK;
+  }
+
+  if(aIID.Equals(kISupportsIID)) {
+    *aInstancePtr = static_cast<nsISupports*>(static_cast<nsIScriptablePlugin*>(this)); 
+    AddRef();
+    return NS_OK;
+  }
+
+  return NS_NOINTERFACE; 
+}
+
+//
+// the following methods will be callable from JavaScript
+//
+NS_IMETHODIMP nsScriptablePeer::ShowVersion()
+{
+  if (mPlugin)
+    mPlugin->showVersion();
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsScriptablePeer::Clear()
+{
+  if (mPlugin)
+    mPlugin->clear();
+
+  return NS_OK;
+}