Base implementation on a DOM event listener...

xpfe/browser/src/nsWidgetListener.cpp

@@ -0,0 +1,203 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (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 Communicator client code.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are Copyright (C) 1998
+ * Netscape Communications Corporation.  All Rights Reserved.
+ */
+
+#include "nsWidgetListener.h"
+#include "nsIDOMEventReceiver.h"
+
+static NS_DEFINE_IID(kIWidgetControllerIID, NS_IWIDGETCONTROLLER_IID);
+static NS_DEFINE_IID(kIDOMMouseListenerIID, NS_IDOMMOUSELISTENER_IID);
+static NS_DEFINE_IID(kIDOMKeyListenerIID,   NS_IDOMKEYLISTENER_IID);
+static NS_DEFINE_IID(kIDOMFormListenerIID,  NS_IDOMFORMLISTENER_IID);
+static NS_DEFINE_IID(kIDOMLoadListenerIID,  NS_IDOMLOADLISTENER_IID);
+static NS_DEFINE_IID(kIDOMEventReceiverIID, NS_IDOMEVENTRECEIVER_IID);
+static NS_DEFINE_IID(kISupportsIID,         NS_ISUPPORTS_IID);
+
+
+
+
+
+nsWidgetListener::nsWidgetListener()
+{
+  NS_INIT_REFCNT();
+}
+
+
+nsWidgetListener::~nsWidgetListener()
+{
+}
+
+/* Implement ISupports methods... */
+NS_IMPL_ADDREF(nsWidgetListener);
+NS_IMPL_RELEASE(nsWidgetListener);
+
+nsresult
+nsWidgetListener::QueryInterface(REFNSIID aIID, void** aInstancePtr)
+{
+  nsresult rv = NS_NOINTERFACE;
+
+  if (NULL == aInstancePtr) {
+    return NS_ERROR_NULL_POINTER;
+  }
+  if (aIID.Equals(kISupportsIID)) {
+    *aInstancePtr = (void*)(nsISupports*)(nsIWidgetController*)this;
+    NS_ADDREF_THIS();
+    return NS_OK;
+  } else if (aIID.Equals(kIWidgetControllerIID)) {
+    *aInstancePtr = (void*)(nsIWidgetController*)this;
+    NS_ADDREF_THIS();
+    return NS_OK;
+  } else if (aIID.Equals(kIDOMMouseListenerIID)) {
+    *aInstancePtr = (void*)(nsIDOMMouseListener*)this;
+    NS_ADDREF_THIS();
+    return NS_OK;
+  } else if (aIID.Equals(kIDOMKeyListenerIID)) {
+    *aInstancePtr = (void*)(nsIDOMKeyListener*)this;
+    NS_ADDREF_THIS();
+    return NS_OK;
+  } else if (aIID.Equals(kIDOMFormListenerIID)) {
+    *aInstancePtr = (void*)(nsIDOMFormListener*)this;
+    NS_ADDREF_THIS();
+    return NS_OK;
+  } else if (aIID.Equals(kIDOMLoadListenerIID)) {
+    *aInstancePtr = (void*)(nsIDOMLoadListener*)this;
+    NS_ADDREF_THIS();
+    return NS_OK;
+  }
+  return rv;
+}
+
+
+nsresult nsWidgetListener::AddEventListener(nsISupports* aNode, 
+                                            const nsIID& aInterfaceIID)
+{
+  nsresult rv;
+  nsIDOMEventReceiver* receiver;
+
+  if (nsnull != aNode) {
+    rv = aNode->QueryInterface(kIDOMEventReceiverIID, (void**) &receiver);
+    if (NS_SUCCEEDED(rv)) {
+      receiver->AddEventListener((nsIDOMEventListener*)(nsIDOMMouseListener*)this, 
+                                 aInterfaceIID);
+      NS_RELEASE(receiver);
+    }
+  } else {
+    rv = NS_ERROR_FAILURE;
+  }
+  return rv;
+}
+
+
+//-----------------------------------------------------------------
+// nsIDOMMouseListener interface...
+//
+nsresult nsWidgetListener::ProcessEvent(nsIDOMEvent* aEvent)
+{
+  return NS_OK;
+}
+
+nsresult nsWidgetListener::MouseUp(nsIDOMEvent* aMouseEvent)
+{
+  return NS_OK;
+}
+
+nsresult nsWidgetListener::MouseDown(nsIDOMEvent* aMouseEvent)
+{
+  return NS_OK;
+}
+
+nsresult nsWidgetListener::MouseClick(nsIDOMEvent* aMouseEvent)
+{
+  return NS_OK;
+}
+
+nsresult nsWidgetListener::MouseDblClick(nsIDOMEvent* aMouseEvent)
+{
+  return NS_OK;
+}
+
+nsresult nsWidgetListener::MouseOver(nsIDOMEvent* aMouseEvent)
+{
+  return NS_OK;
+}
+
+nsresult nsWidgetListener::MouseOut(nsIDOMEvent* aMouseEvent)
+{
+  return NS_OK;
+}
+
+//----------------------------------------------------------------------
+// nsIDOMKeyListener interface...
+//
+nsresult nsWidgetListener::KeyDown(nsIDOMEvent* aKeyEvent)
+{
+  return NS_OK;
+}
+
+nsresult nsWidgetListener::KeyUp(nsIDOMEvent* aKeyEvent)
+{
+  return NS_OK;
+}
+
+nsresult nsWidgetListener::KeyPress(nsIDOMEvent* aKeyEvent)
+{
+  return NS_OK;
+}
+
+//----------------------------------------------------------------------
+// nsIDOMFormListener interface...
+//
+nsresult nsWidgetListener::Submit(nsIDOMEvent* aFormEvent)
+{
+  return NS_OK;
+}
+
+nsresult nsWidgetListener::Reset(nsIDOMEvent* aFormEvent)
+{
+  return NS_OK;
+}
+
+nsresult nsWidgetListener::Change(nsIDOMEvent* aFormEvent)
+{
+  return NS_OK;
+}
+
+
+//----------------------------------------------------------------------
+// nsIDOMLoadListener interface...
+//
+nsresult nsWidgetListener::Load(nsIDOMEvent* aLoadEvent)
+{
+  return NS_OK;
+}
+
+nsresult nsWidgetListener::Unload(nsIDOMEvent* aLoadEvent)
+{
+  return NS_OK;
+}
+
+nsresult nsWidgetListener::Abort(nsIDOMEvent* aLoadEvent)
+{
+  return NS_OK;
+}
+
+nsresult nsWidgetListener::Error(nsIDOMEvent* aLoadEvent)
+{
+  return NS_OK;
+}
+

xpfe/browser/src/nsWidgetListener.h

@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (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 Communicator client code.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are Copyright (C) 1998
+ * Netscape Communications Corporation.  All Rights Reserved.
+ */
+
+#ifndef nsWidgetListener_h__
+#define nsWidgetListener_h__
+
+#include "nsIWidgetController.h"
+#include "nsIDOMMouseListener.h"
+#include "nsIDOMKeyListener.h"
+#include "nsIDOMFormListener.h"
+#include "nsIDOMLoadListener.h"
+#include "nsIDOMElement.h"
+
+
+
+class nsWidgetListener : public nsIWidgetController,
+                         public nsIDOMMouseListener,
+                         public nsIDOMKeyListener,
+                         public nsIDOMFormListener,
+                         public nsIDOMLoadListener
+{
+public:
+  nsWidgetListener();
+
+  // nsISupports interface
+  NS_DECL_ISUPPORTS
+
+  // nsIDOMMouseListener interface
+  virtual nsresult ProcessEvent (nsIDOMEvent* aEvent);
+  virtual nsresult MouseDown    (nsIDOMEvent* aMouseEvent);
+  virtual nsresult MouseUp      (nsIDOMEvent* aMouseEvent);
+  virtual nsresult MouseClick   (nsIDOMEvent* aMouseEvent);
+  virtual nsresult MouseDblClick(nsIDOMEvent* aMouseEvent);
+  virtual nsresult MouseOver    (nsIDOMEvent* aMouseEvent);
+  virtual nsresult MouseOut     (nsIDOMEvent* aMouseEvent);
+
+  // nsIDOMKeyListener interface
+  virtual nsresult KeyDown (nsIDOMEvent* aKeyEvent);
+  virtual nsresult KeyUp   (nsIDOMEvent* aKeyEvent);
+  virtual nsresult KeyPress(nsIDOMEvent* aKeyEvent);
+
+  // nsIDOMFormListener interface
+  virtual nsresult Submit(nsIDOMEvent* aFormEvent);
+  virtual nsresult Reset (nsIDOMEvent* aFormEvent);
+  virtual nsresult Change(nsIDOMEvent* aFormEvent);
+
+  // nsIDOMLoadListener interface
+  virtual nsresult Load  (nsIDOMEvent* aLoadEvent);
+  virtual nsresult Unload(nsIDOMEvent* aLoadEvent);
+  virtual nsresult Abort (nsIDOMEvent* aLoadEvent);
+  virtual nsresult Error (nsIDOMEvent* aLoadEvent);
+
+protected:
+  virtual ~nsWidgetListener();
+
+  nsresult AddEventListener(nsISupports* aNode, const nsIID& aInterfaceIID);
+};
+
+#endif /* nsWidgetListener_h__ */