From d6651f307d896848372ac696e8335ac47eac8888 Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Tue, 2 Jul 2019 15:55:51 +0200
Subject: Temporarily spawn openbox if no WM is running

---
 src/windowmanager.cpp | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 src/windowmanager.cpp

(limited to 'src/windowmanager.cpp')

diff --git a/src/windowmanager.cpp b/src/windowmanager.cpp
new file mode 100644
index 0000000..e5e14a3
--- /dev/null
+++ b/src/windowmanager.cpp
@@ -0,0 +1,43 @@
+#include "windowmanager.h"
+
+#include <QProcess>
+#include <QTimer>
+#include <QDebug>
+
+namespace WindowManager {
+
+static QProcess wm;
+
+void ensureRunning()
+{
+    wm.start(QLatin1String("openbox"));
+    wm.closeReadChannel(QProcess::StandardError);
+    wm.closeReadChannel(QProcess::StandardOutput);
+    wm.closeWriteChannel();
+    wm.waitForStarted(1000);
+    QTimer::singleShot(200, []() {
+        if (wm.state() == QProcess::Running) {
+            qDebug() << "- Spawned openbox";
+        } else if (wm.exitCode() == 0) {
+            qDebug() << "- A WM is already running";
+        } else {
+            qDebug() << "- openbox binary not in $PATH";
+        }
+    });
+}
+
+void stopOwnInstance()
+{
+    if (wm.state() == QProcess::Running) {
+        qDebug() << "- Politely terminating spawned WM";
+        wm.terminate();
+        QTimer::singleShot(1000, []() {
+            if (wm.state() == QProcess::Running) {
+                qDebug() << "- Forcefully killing spawned WM";
+                wm.kill();
+            }
+        });
+    }
+}
+
+}
-- 
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