Initial revision

1 files changed, 167 insertions, 0 deletions

diff --git a/core/launcher/suspendmonitor.cpp b/core/launcher/suspendmonitor.cpp
new file mode 100644
index 0000000..f555e84
--- a/dev/null
+++ b/core/launcher/suspendmonitor.cpp
@@ -0,0 +1,167 @@
+/**********************************************************************
+** Copyright (C) 2000-2002 Trolltech AS.  All rights reserved.
+**
+** This file is part of the Qtopia Environment.
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See http://www.trolltech.com/gpl/ for GPL licensing information.
+**
+** Contact info@trolltech.com if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+#include <qtopia/qcopenvelope_qws.h>
+#include <qtopia/qpeapplication.h>
+#include "suspendmonitor.h"
+
+
+#ifdef QTOPIA_MAX_SCREEN_DISABLE_TIME
+#define QTOPIA_MIN_SCREEN_DISABLE_TIME ((int) 300)  // min 5 minutes before forced suspend kicks in
+#endif
+
+
+TempScreenSaverMonitor::TempScreenSaverMonitor(QObject *parent, const char *name)
+    : QObject(parent, name)
+{
+    currentMode = QPEApplication::Enable;
+    timerId = 0;
+}
+
+void TempScreenSaverMonitor::setTempMode(int mode, int pid)
+{
+    removeOld(pid);
+    switch(mode) {
+	case QPEApplication::Disable:
+	    sStatus[0].append(pid);
+	    break;
+	case QPEApplication::DisableLightOff:
+	    sStatus[1].append(pid);
+	    break;
+	case QPEApplication::DisableSuspend:
+	    sStatus[2].append(pid);
+	    break;
+	case QPEApplication::Enable:
+	    break;
+	default:
+	    qWarning("Unrecognized temp power setting.  Ignored");
+	    return;
+    }
+    updateAll();
+}
+
+// Returns true if app had set a temp Mode earlier
+bool TempScreenSaverMonitor::removeOld(int pid)
+{
+    QValueList<int>::Iterator it;
+    for (int i = 0; i < 3; i++) {
+	it = sStatus[i].find(pid);
+	if ( it != sStatus[i].end() ) {
+	    sStatus[i].remove( it );
+	    return TRUE;
+	}
+    }
+    return FALSE;
+}
+
+void TempScreenSaverMonitor::updateAll()
+{
+    int mode = QPEApplication::Enable;
+    if ( sStatus[0].count() ) {
+	mode = QPEApplication::Disable;
+    } else if ( sStatus[1].count() ) {
+	mode = QPEApplication::DisableLightOff;
+    } else if ( sStatus[2].count() ) {
+	mode = QPEApplication::DisableSuspend;
+    } 
+
+    if ( mode != currentMode ) {
+#ifdef QTOPIA_MAX_SCREEN_DISABLE_TIME
+	if ( currentMode == QPEApplication::Enable) {
+	    int tid = timerValue();
+	    if ( tid )
+		timerId = startTimer( tid * 1000 );
+	} else if ( mode == QPEApplication::Enable ) {
+	    if ( timerId ) {
+		killTimer(timerId);
+		timerId = 0;
+	    }
+	}
+#endif
+	currentMode = mode;
+	QCopEnvelope("QPE/System", "setScreenSaverMode(int)") << mode;
+    }
+}
+
+void TempScreenSaverMonitor::applicationTerminated(int pid)
+{
+    if ( removeOld(pid) )
+	updateAll();
+}
+
+int TempScreenSaverMonitor::timerValue()
+{
+    int tid = 0;
+#ifdef QTOPIA_MAX_SCREEN_DISABLE_TIME
+    tid = QTOPIA_MAX_SCREEN_DISABLE_TIME;
+
+    char *env = getenv("QTOPIA_DISABLED_APM_TIMEOUT");
+    if ( !env ) 
+	return tid;
+
+    QString strEnv = env;
+    bool ok = FALSE;
+    int envTime = strEnv.toInt(&ok);
+
+    if ( ok ) {
+	if ( envTime < 0 )
+	    return 0;
+	else if ( envTime <= QTOPIA_MIN_SCREEN_DISABLE_TIME )
+	    return tid;
+	else 
+	    return envTime;
+    }
+#endif
+
+    return tid;
+}
+
+void TempScreenSaverMonitor::timerEvent(QTimerEvent *t)
+{
+#ifdef QTOPIA_MAX_SCREEN_DISABLE_TIME
+    if ( timerId && (t->timerId() == timerId) ) {
+	
+	/*  Clean up	*/
+	killTimer(timerId);
+	timerId = 0;
+	currentMode = QPEApplication::Enable;
+	QCopEnvelope("QPE/System", "setScreenSaverMode(int)") << currentMode;
+	
+	// signal starts on a merry-go-round, which ends up in Desktop::togglePower()
+	emit forceSuspend();
+	// if we have apm we are asleep at this point, next line will be executed when we
+	// awake from suspend.
+	if ( QFile::exists( "/proc/apm" ) ) {
+	    QTime t;
+	    t = t.addSecs( timerValue() );
+	    QString str =  tr("<qt>The running applications disabled the screen saver for more than the allowed time (%1).<p>The system was forced to suspend</p></qt>").arg( t.toString() );
+	    QMessageBox::information(0, tr("Forced suspend"), str);
+	}
+	
+	// Reset all requests.
+	for (int i = 0; i < 3; i++)
+	    sStatus[i].clear();
+
+	updateAll();
+    }
+#else
+    Q_UNUSED(t);
+#endif
+}
+