layout/printing/nsPrintPreviewListener.h
author Jeff Walden <jwalden@mit.edu>
Thu, 28 Mar 2013 00:19:40 -0700
changeset 137805 81cef708ab47be07690e03f07edb756e5733705a
parent 102310 6ea80e3155b6f86a7867580776415d3d0e41e420
child 141075 ec91252c57d2fcf3edc550fd35bb4bebbb4de981
permissions -rw-r--r--
Bug 789897 - Make BaseProxyHandler::{isExtensible,preventExtensions} pure virtual. r=bholley

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsPrintPreviewListener_h__
#define nsPrintPreviewListener_h__

// Interfaces needed to be included
#include "nsIDOMEventListener.h"
#include "nsIDOMEventTarget.h"
// Helper Classes
#include "nsCOMPtr.h"
#include "mozilla/Attributes.h"

//
// class nsPrintPreviewListener
//
// The class that listens to the chrome events and tells the embedding
// chrome to show context menus, as appropriate. Handles registering itself
// with the DOM with AddChromeListeners() and removing itself with
// RemoveChromeListeners().
//
class nsPrintPreviewListener MOZ_FINAL : public nsIDOMEventListener

{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIDOMEVENTLISTENER
  
  nsPrintPreviewListener(nsIDOMEventTarget* aTarget);

  // Add/remove the relevant listeners, based on what interfaces
  // the embedding chrome implements.
  nsresult AddListeners();
  nsresult RemoveListeners();

private:

  nsCOMPtr<nsIDOMEventTarget> mEventTarget;

}; // class nsPrintPreviewListener



#endif /* nsPrintPreviewListener_h__ */