ShutdownUI: add single instance

shutdown-ui/main.cpp

@@ -24,6 +24,7 @@
 #include <QFile>
 #include <QLocale>
 #include <QTranslator>
+#include <QDBusConnection>
 
 #include "actions.h"
 
@@ -33,6 +34,14 @@ int main(int argc, char *argv[])
 
     QGuiApplication app(argc, argv);
 
+    if (!QDBusConnection::sessionBus().registerService("org.cutefish.ShutdownUI")) {
+        return -1;
+    }
+
+    if (!QDBusConnection::sessionBus().registerObject("/ShutdownUI", &app)) {
+        return -1;
+    }
+
     // Translations
     QLocale locale;
     QString qmFilePath = QString("%1/%2.qm").arg("/usr/share/cutefish-shutdown/translations/").arg(locale.name());

shutdown-ui/main.qml

@@ -28,7 +28,7 @@ ApplicationWindow {
     height: Screen.height
     visible: true
     visibility: Window.FullScreen
-    flags: Qt.FramelessWindowHint | Qt.Popup
+    flags: Qt.FramelessWindowHint | Qt.X11BypassWindowManagerHint
     id: root
 
     color: "transparent"
@@ -59,6 +59,16 @@ ApplicationWindow {
         onClicked: exit()
     }
 
+    Item {
+        id: rootItem
+        anchors.fill: parent
+        focus: true
+
+        Keys.enabled: true
+        Keys.onEscapePressed: {
+            Qt.quit()
+        }
+
         RowLayout {
             id: layout
             anchors.fill: parent
@@ -113,3 +123,4 @@ ApplicationWindow {
             }
         }
     }
+}