зеркало из https://github.com/mozilla/pjs.git
156 строки
4.8 KiB
C++
156 строки
4.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim:expandtab:shiftwidth=4:tabstop=4:
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*/
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Gijs Kruitbosch <gijskruitbosch@gmail.com>.
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* Portions created by the Initial Developer are Copyright (C) 2007
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifdef MOZ_X11
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#include "mozilla/X11Util.h"
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#endif
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#include "nsIdleServiceQt.h"
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#include "nsIServiceManager.h"
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#include "nsDebug.h"
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#include "prlink.h"
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#if !defined(MOZ_PLATFORM_MAEMO) && defined(MOZ_X11)
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typedef bool (*_XScreenSaverQueryExtension_fn)(Display* dpy, int* event_base,
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int* error_base);
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typedef XScreenSaverInfo* (*_XScreenSaverAllocInfo_fn)(void);
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typedef void (*_XScreenSaverQueryInfo_fn)(Display* dpy, Drawable drw,
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XScreenSaverInfo *info);
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static _XScreenSaverQueryExtension_fn _XSSQueryExtension = nsnull;
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static _XScreenSaverAllocInfo_fn _XSSAllocInfo = nsnull;
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static _XScreenSaverQueryInfo_fn _XSSQueryInfo = nsnull;
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#endif
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static bool sInitialized = false;
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NS_IMPL_ISUPPORTS2(nsIdleServiceQt, nsIIdleService, nsIdleService)
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nsIdleServiceQt::nsIdleServiceQt()
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#if !defined(MOZ_PLATFORM_MAEMO) && defined(MOZ_X11)
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: mXssInfo(nsnull)
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#endif
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{
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}
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static void Initialize()
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{
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sInitialized = true;
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#if !defined(MOZ_PLATFORM_MAEMO) && defined(MOZ_X11)
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// This will leak - See comments in ~nsIdleServiceQt().
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PRLibrary* xsslib = PR_LoadLibrary("libXss.so.1");
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if (!xsslib) {
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return;
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}
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_XSSQueryExtension = (_XScreenSaverQueryExtension_fn)
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PR_FindFunctionSymbol(xsslib, "XScreenSaverQueryExtension");
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_XSSAllocInfo = (_XScreenSaverAllocInfo_fn)
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PR_FindFunctionSymbol(xsslib, "XScreenSaverAllocInfo");
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_XSSQueryInfo = (_XScreenSaverQueryInfo_fn)
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PR_FindFunctionSymbol(xsslib, "XScreenSaverQueryInfo");
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#endif
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}
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nsIdleServiceQt::~nsIdleServiceQt()
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{
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#if !defined(MOZ_PLATFORM_MAEMO) && defined(MOZ_X11)
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if (mXssInfo)
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XFree(mXssInfo);
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// It is not safe to unload libXScrnSaver until each display is closed because
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// the library registers callbacks through XESetCloseDisplay (Bug 397607).
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// (Also the library and its functions are scoped for the file not the object.)
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#if 0
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if (xsslib) {
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PR_UnloadLibrary(xsslib);
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xsslib = nsnull;
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}
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#endif
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#endif
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}
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bool
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nsIdleServiceQt::PollIdleTime(PRUint32 *aIdleTime)
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{
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#if !defined(MOZ_PLATFORM_MAEMO) && defined(MOZ_X11)
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// Ask xscreensaver about idle time:
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*aIdleTime = 0;
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// We might not have a display (cf. in xpcshell)
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Display *dplay = mozilla::DefaultXDisplay();
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if (!dplay) {
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return false;
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}
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if (!sInitialized) {
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Initialize();
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}
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if (!_XSSQueryExtension || !_XSSAllocInfo || !_XSSQueryInfo) {
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return false;
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}
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int event_base, error_base;
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if (_XSSQueryExtension(dplay, &event_base, &error_base)) {
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if (!mXssInfo)
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mXssInfo = _XSSAllocInfo();
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if (!mXssInfo)
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return false;
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_XSSQueryInfo(dplay, RootWindowOfScreen(DefaultScreenOfDisplay(mozilla::DefaultXDisplay())), mXssInfo);
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*aIdleTime = mXssInfo->idle;
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return true;
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}
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#endif
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return false;
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}
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bool
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nsIdleServiceQt::UsePollMode()
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{
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#if !defined(MOZ_PLATFORM_MAEMO) && defined(MOZ_X11)
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return false;
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#endif
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return true;
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}
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