feat: introduce tray item, that lets you toggle floating mode

res/ui/TrayItem.qml

@@ -0,0 +1,27 @@
+// SPDX-FileCopyrightText: 2021 Mikhail Zolotukhin <mail@genda.life>
+//
+// SPDX-License-Identifier: MIT
+
+import QtQuick 2.0
+
+import Qt.labs.platform 1.1 as Labs
+
+Labs.SystemTrayIcon {
+  id: root
+  visible: true
+  icon.name: "bismuth"
+  tooltip: "Windows' Tiling"
+
+  menu: Labs.Menu {
+    id: menu
+    visible: false // Prevent from showing on Script Loading
+
+    property var onToggleTiling: () => {}
+
+    Labs.MenuItem {
+      text: i18n("Toggle Tiling")
+      icon.name: "window"
+      onTriggered: () => menu.onToggleTiling()
+    }
+  }
+}

res/ui/main.qml

@@ -6,11 +6,16 @@
 import QtQuick 2.0
 import org.kde.kwin 2.0;
 import org.kde.taskmanager 0.1 as TaskManager
+
 import "../code/index.mjs" as Bismuth
 
 Item {
     id: scriptRoot
 
+    TrayItem {
+      id: trayItem
+    }
+
     TaskManager.ActivityInfo {
         id: activityInfo
     }
@@ -29,6 +34,7 @@ Item {
 
         const qmlObjects = {
             scriptRoot: scriptRoot,
+            trayItem: trayItem,
             activityInfo: activityInfo,
             popupDialog: popupDialog
         };

src/controller/index.ts

@@ -150,7 +150,7 @@ export class ControllerImpl implements Controller {
   private engine: Engine;
   private driver: Driver;
   public constructor(
-    qmlObjects: Bismuth.Qml.Main,
+    private qmlObjects: Bismuth.Qml.Main,
     kwinApi: KWin.Api,
     private config: Config,
     private log: Log
@@ -166,6 +166,7 @@ export class ControllerImpl implements Controller {
     this.log.log("Let's get down to bismuth!");
 
     this.driver.bindEvents();
+    this.bindTrayActions();
     this.bindShortcuts();
 
     this.driver.manageWindows();
@@ -372,6 +373,16 @@ export class ControllerImpl implements Controller {
     this.engine.manage(win);
   }
 
+  private bindTrayActions(): void {
+    // NOTE: Since the qml interface is very agile, it's seems
+    // to be unreasonable to make the bindings universal.
+    // However, this may be changed it the future.
+    this.qmlObjects.trayItem.menu.onToggleTiling = (): void => {
+      const action = new Action.ToggleFloatingLayout(this.engine, this.log);
+      action.execute();
+    };
+  }
+
   private bindShortcuts(): void {
     const allPossibleActions = [
       new Action.FocusNextWindow(this.engine, this.log),

src/extern/global.d.ts

@@ -9,10 +9,19 @@ declare namespace Bismuth {
   export namespace Qml {
     export interface Main {
       scriptRoot: object;
+      trayItem: TrayItem;
       activityInfo: Plasma.TaskManager.ActivityInfo;
       popupDialog: PopupDialog;
     }
 
+    export interface TrayItem {
+      menu: TrayMenu;
+    }
+
+    export interface TrayMenu {
+      onToggleTiling: () => void;
+    }
+
     export interface PopupDialog {
       show(text: string): void;
     }