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Viewing changes to cutestuff/idle/idle_x11.cpp

  • Committer: Bazaar Package Importer
  • Author(s): Lucas Nussbaum
  • Date: 2006-03-28 11:11:02 UTC
  • mfrom: (2.1.2 etch)
  • Revision ID: james.westby@ubuntu.com-20060328111102-v1diqpbwqr4yijoy
Tags: 0.10-2build1
Manual sync from Debian. No Ubuntu-specific changes.

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cutestuff/idle/idle_x11.cpp
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/*
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 * idle_x11.cpp - detect desktop idle time
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 * Copyright (C) 2003  Justin Karneges
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 *
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 *
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 */
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#include"idle.h"
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#ifdef NO_XSS
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IdlePlatform::IdlePlatform() {}
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IdlePlatform::~IdlePlatform() {}
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bool IdlePlatform::init() { return false; }
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int IdlePlatform::secondsIdle() { return 0; }
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#else
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#include<qapplication.h>
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#include<X11/Xlib.h>
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#include<X11/Xutil.h>
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#include<X11/extensions/scrnsaver.h>
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static XErrorHandler old_handler = 0;
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extern "C" int xerrhandler(Display* dpy, XErrorEvent* err)
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{
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        if(err->error_code == BadDrawable)
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                return 0;
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        return (*old_handler)(dpy, err);
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}
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class IdlePlatform::Private
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{
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public:
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        Private() {}
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        XScreenSaverInfo *ss_info;
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};
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IdlePlatform::IdlePlatform()
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{
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        d = new Private;
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        d->ss_info = 0;
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}
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IdlePlatform::~IdlePlatform()
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{
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        if(d->ss_info)
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                XFree(d->ss_info);
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        if(old_handler) {
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                XSetErrorHandler(old_handler);
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                old_handler = 0;
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        }
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        delete d;
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}
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bool IdlePlatform::init()
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{
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        if(d->ss_info)
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                return true;
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        old_handler = XSetErrorHandler(xerrhandler);
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        int event_base, error_base;
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        if(XScreenSaverQueryExtension(QApplication::desktop()->screen()->x11Display(), &event_base, &error_base)) {
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                d->ss_info = XScreenSaverAllocInfo();
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                return true;
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        }
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        return false;
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}
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int IdlePlatform::secondsIdle()
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{
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        if(!d->ss_info)
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                return 0;
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        if(!XScreenSaverQueryInfo(QApplication::desktop()->screen()->x11Display(), qt_xrootwin(), d->ss_info))
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                return 0;
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        return d->ss_info->idle / 1000;
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}
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#endif