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
+}
+