gecko-dev/toolkit/xre/nsSplashScreen.h

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/* -*- Mode: C++; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** 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 code.
*
* The Initial Developer of the Original Code is
* mozilla.org
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Vladimir Vukicevic <vladimir@pobox.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 NS_SPLASHSCREEN_H_
#define NS_SPLASHSCREEN_H_
#include "prtypes.h"
/* Note: This is not XPCOM! This class is used before any Gecko/XPCOM
* support has been initialized, so any implementations should take care
* to use platform-native methods as much as possible.
*/
class nsSplashScreen {
public:
// An implementation needs to provide these, to either get
// an existing splash screen, or create a new one if GetOrCreate is
// used.
static nsSplashScreen* GetOrCreate();
static nsSplashScreen* Get();
public:
// Display the splash screen if it's not already displayed.
// Also resets progress to 0 and the message to empty.
virtual void Open() = 0;
virtual void Close() = 0;
/* Update the splash screen to the given progress value (0..100) */
virtual void Update(PRInt32 progress) = 0;
PRBool IsOpen() { return mIsOpen; }
protected:
nsSplashScreen() : mIsOpen(PR_FALSE) { }
PRBool mIsOpen;
};
extern "C" {
nsSplashScreen *NS_GetSplashScreen(PRBool create);
typedef nsSplashScreen* (*NS_GetSplashScreenPtr) (PRBool);
}
#endif /* NS_SPLASHSCREEN_H_ */