/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla 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/MPL/
 *
 * 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 of 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 MPL, 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 MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */
#ifndef nsScreen_h___
#define nsScreen_h___

#include "mozilla/dom/ScreenOrientation.h"
#include "mozilla/Hal.h"
#include "nsIDOMScreen.h"
#include "nsISupports.h"
#include "nsIScriptContext.h"
#include "nsCOMPtr.h"
#include "nsDOMEventTargetHelper.h"

class nsIDocShell;
class nsDeviceContext;
struct nsRect;

// Script "screen" object
class nsScreen : public nsDOMEventTargetHelper
               , public nsIDOMScreen
               , public mozilla::hal::ScreenConfigurationObserver
{
public:
  static already_AddRefed<nsScreen> Create(nsPIDOMWindow* aWindow);

  void Invalidate();

  NS_DECL_ISUPPORTS
  NS_DECL_NSIDOMSCREEN
  NS_FORWARD_NSIDOMEVENTTARGET(nsDOMEventTargetHelper::)

  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsScreen,
                                           nsDOMEventTargetHelper)

  void Notify(const mozilla::hal::ScreenConfiguration& aConfiguration);

protected:
  nsDeviceContext* GetDeviceContext();
  nsresult GetRect(nsRect& aRect);
  nsresult GetAvailRect(nsRect& aRect);

  mozilla::dom::ScreenOrientation mOrientation;

private:
  class FullScreenEventListener : public nsIDOMEventListener
  {
  public:
    FullScreenEventListener() {};

    NS_DECL_ISUPPORTS
    NS_DECL_NSIDOMEVENTLISTENER
  };

  nsScreen();
  virtual ~nsScreen();

  nsRefPtr<FullScreenEventListener> mEventListener;

  NS_DECL_EVENT_HANDLER(mozorientationchange)
};

#endif /* nsScreen_h___ */