add scrool or click actions

modules/PowerProfile.qml

@@ -28,4 +28,20 @@ M.BarIcon {
         repeat: true
         onTriggered: proc.running = true
     }
+
+    Process {
+        id: setter
+        property string next: ""
+        command: ["powerprofilesctl", "set", next]
+        onRunningChanged: if (!running && next !== "") proc.running = true
+    }
+
+    TapHandler {
+        onTapped: {
+            const cycle = ["performance", "balanced", "power-saver"];
+            const idx = cycle.indexOf(root.profile);
+            setter.next = cycle[(idx + 1) % cycle.length];
+            setter.running = true;
+        }
+    }
 }