michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0:  *
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef nsPrintPreviewListener_h__
michael@0: #define nsPrintPreviewListener_h__
michael@0: 
michael@0: // Interfaces needed to be included
michael@0: #include "nsIDOMEventListener.h"
michael@0: // Helper Classes
michael@0: #include "nsCOMPtr.h"
michael@0: #include "mozilla/Attributes.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace dom {
michael@0: class EventTarget;
michael@0: }
michael@0: }
michael@0: 
michael@0: //
michael@0: // class nsPrintPreviewListener
michael@0: //
michael@0: // The class that listens to the chrome events and tells the embedding
michael@0: // chrome to show context menus, as appropriate. Handles registering itself
michael@0: // with the DOM with AddChromeListeners() and removing itself with
michael@0: // RemoveChromeListeners().
michael@0: //
michael@0: class nsPrintPreviewListener MOZ_FINAL : public nsIDOMEventListener
michael@0: 
michael@0: {
michael@0: public:
michael@0:   NS_DECL_ISUPPORTS
michael@0:   NS_DECL_NSIDOMEVENTLISTENER
michael@0: 
michael@0:   nsPrintPreviewListener(mozilla::dom::EventTarget* aTarget);
michael@0:   ~nsPrintPreviewListener();
michael@0: 
michael@0:   // Add/remove the relevant listeners, based on what interfaces
michael@0:   // the embedding chrome implements.
michael@0:   nsresult AddListeners();
michael@0:   nsresult RemoveListeners();
michael@0: 
michael@0: private:
michael@0: 
michael@0:   nsCOMPtr<mozilla::dom::EventTarget> mEventTarget;
michael@0: 
michael@0: }; // class nsPrintPreviewListener
michael@0: 
michael@0: 
michael@0: 
michael@0: #endif /* nsPrintPreviewListener_h__ */