Adding new script event api's for DOM2 compliance

dom/src/events/nsJSDOMEventListener.cpp

@@ -0,0 +1,111 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+#include "nsJSDOMEventListener.h"
+#include "nsString.h"
+
+static NS_DEFINE_IID(kIScriptEventListenerIID, NS_ISCRIPTEVENTLISTENER_IID);
+static NS_DEFINE_IID(kIDOMEventListenerIID, NS_IDOMEVENTLISTENER_IID);
+static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
+
+/*
+ * nsJSDOMEventListener implementation
+ */
+nsJSDOMEventListener::nsJSDOMEventListener(JSContext *aContext, JSObject *aObj, JSFunction *aFun) 
+{
+  NS_INIT_REFCNT();
+  mContext = aContext;
+  mJSObj = aObj;
+  mJSFun = aFun;
+}
+
+nsJSDOMEventListener::~nsJSDOMEventListener() 
+{
+}
+
+nsresult nsJSDOMEventListener::QueryInterface(REFNSIID aIID, void** aInstancePtr)
+{
+  if (NULL == aInstancePtr) {
+    return NS_ERROR_NULL_POINTER;
+  }
+  if (aIID.Equals(kIDOMEventListenerIID)) {
+    *aInstancePtr = (void*)(nsIDOMEventListener*)this;
+    AddRef();
+    return NS_OK;
+  }
+  if (aIID.Equals(kIScriptEventListenerIID)) {
+    *aInstancePtr = (void*)(nsIScriptEventListener*)this;
+    AddRef();
+    return NS_OK;
+  }
+  if (aIID.Equals(kISupportsIID)) {
+    *aInstancePtr = (void*)(nsISupports*)(nsIDOMEventListener*)this;
+    AddRef();
+    return NS_OK;
+  }
+  return NS_NOINTERFACE;
+}
+
+NS_IMPL_ADDREF(nsJSDOMEventListener)
+
+NS_IMPL_RELEASE(nsJSDOMEventListener)
+
+nsresult nsJSDOMEventListener::HandleEvent(nsIDOMEvent* aEvent)
+{
+  jsval result;
+  jsval argv[1];
+  JSObject *eventObj;
+
+  nsIScriptContext *mScriptCX = (nsIScriptContext *)JS_GetContextPrivate(mContext);
+  if (NS_OK != NS_NewScriptEvent(mScriptCX, aEvent, nsnull, (void**)&eventObj)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  argv[0] = OBJECT_TO_JSVAL(eventObj);
+  if (PR_TRUE == JS_CallFunction(mContext, mJSObj, mJSFun, 1, argv, &result)) {
+    mScriptCX->ScriptEvaluated();
+	  if (JSVAL_IS_BOOLEAN(result) && JSVAL_TO_BOOLEAN(result) == JS_FALSE) {
+      return NS_ERROR_FAILURE;
+    }
+    return NS_OK;
+  }
+  mScriptCX->ScriptEvaluated();
+
+  return NS_ERROR_FAILURE;
+}
+
+nsresult nsJSDOMEventListener::CheckIfEqual(nsIScriptEventListener *aListener)
+{
+  return NS_COMFALSE;
+}
+
+/*
+ * Factory functions
+ */
+
+extern "C" NS_DOM nsresult NS_NewScriptEventListener(nsIDOMEventListener ** aInstancePtrResult, nsIScriptContext *aContext, void* aObj, void *aFun)
+{
+  JSContext *mCX = (JSContext*)aContext->GetNativeContext();
+  
+  nsJSDOMEventListener* it = new nsJSDOMEventListener(mCX, (JSObject*)aObj, (JSFunction*)aFun);
+  if (NULL == it) {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  return it->QueryInterface(kIDOMEventListenerIID, (void **) aInstancePtrResult);   
+}
+

dom/src/events/nsJSDOMEventListener.h

@@ -0,0 +1,48 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+#ifndef nsJSEventListener_h__
+#define nsJSEventListener_h__
+
+#include "nsIDOMEvent.h"
+#include "nsIScriptEventListener.h"
+#include "nsIDOMMouseListener.h"
+#include "jsapi.h"
+
+//nsIDOMMouseListener interface
+class nsJSDOMEventListener : public nsIDOMEventListener, public nsIScriptEventListener {
+public:
+  nsJSDOMEventListener(JSContext *aContext, JSObject *aObj, JSFunction *aFun);
+  virtual ~nsJSDOMEventListener();
+
+  NS_DECL_ISUPPORTS
+
+  //nsIDOMEventListener interface
+  virtual nsresult HandleEvent(nsIDOMEvent* aEvent);
+
+  //nsIScriptEventListener interface
+  virtual nsresult CheckIfEqual(nsIScriptEventListener *aListener);
+
+protected:
+  JSContext *mContext;
+  JSObject *mJSObj;
+  JSFunction *mJSFun;
+
+};
+
+#endif //nsJSEventListener_h__