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#include "windowmanager.h"
#include <QProcess>
#include <QTimer>
#include <QDebug>
#include <QThread>
#include <QCoreApplication>
namespace WindowManager {
static QProcess wm;
static void killInstance();
void ensureRunning()
{
static bool once = false;
if (once)
return;
once = true;
wm.start(QLatin1String("openbox"));
wm.closeReadChannel(QProcess::StandardError);
wm.closeReadChannel(QProcess::StandardOutput);
wm.closeWriteChannel();
wm.waitForStarted(500);
QTimer::singleShot(500, []() {
if (wm.state() == QProcess::Running) {
qDebug() << "- Spawned openbox";
QObject::connect(QCoreApplication::instance(), &QCoreApplication::aboutToQuit, killInstance);
// Try to make vmchooser the foreground window again, since starting the WM after
// vmchooser makes it lose focus
QProcess::startDetached("wmctrl", QStringList() << "-a" << "vmchooser" << "-F");
} else if (wm.exitCode() == 0) {
qDebug() << "- A WM is already running";
} else {
qDebug() << "- openbox binary not in $PATH";
}
});
}
void stopOwnInstance(bool waitSync)
{
if (wm.state() == QProcess::Running) {
qDebug() << "- Politely terminating spawned WM";
if (waitSync) {
killInstance();
} else {
wm.terminate();
QTimer::singleShot(500, killInstance);
}
}
}
void killInstance()
{
if (wm.state() == QProcess::Running) {
wm.terminate();
}
for (int i = 0; i < 50 && wm.state() == QProcess::Running; ++i) {
QThread::msleep(10);
}
if (wm.state() == QProcess::Running) {
qDebug() << "- Forcefully killing spawned WM";
wm.kill();
}
}
}
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