Toolbar (JavaScript)

Toolbar (JavaScript) Tiffany Antopolski tiffany.antopolski@gmail.com 2012 A bar of tools Rafael Ferreira rafael.f.f1@gmail.com 2013 Toolbar
Toolbar can contain either text or stock icons. In this sample we use stock icons. This example has fullscreen functionality.
This example uses SimpleActions (window and app). App actions can easily be added the the app menu.
#!/usr/bin/gjs

imports.gi.versions.Gdk = '3.0';
imports.gi.versions.Gtk = '3.0';

const Gdk = imports.gi.Gdk;
const Gio = imports.gi.Gio;
const GLib = imports.gi.GLib;
const Gtk = imports.gi.Gtk;

class Application {

    //create the application
    constructor() {
        this.application = new Gtk.Application({
            application_id: 'org.example.myapp',
            flags: Gio.ApplicationFlags.FLAGS_NONE
        });

       //connect to 'activate' and 'startup' signals to the callback functions
       this.application.connect('activate', this._onActivate.bind(this));
       this.application.connect('startup', this._onStartup.bind(this));
    }

    //create the UI (in this case it's just the ApplicationWindow
    _buildUI() {
        this._window = new Gtk.ApplicationWindow({
            application: this.application,
            window_position: Gtk.WindowPosition.CENTER,
            title: "Toolbar Example",
            default_height: 200,
            default_width: 400
        });

        this._grid = new Gtk.Grid();
        this._window.add(this._grid);
        this._grid.show();

        this._createToolbar();
        this._toolbar.set_hexpand(true);
        this._grid.attach(this._toolbar, 0, 0, 1, 1);

        //show the  toolbar and window
        this._toolbar.show();
        this._window.show();
    }

    //callback function for 'activate' signal
    _onActivate() {
        this._window.present();
    }

    //callback function for 'startup' signal
    _onStartup() {
        this._initMenus();
        this._buildUI();
    }

    //create the toolbar, its toolbuttons and their actions
    _createToolbar() {

        this._toolbar = new Gtk.Toolbar();
        this._toolbar.get_style_context().add_class(Gtk.STYLE_CLASS_PRIMARY_TOOLBAR);

        //create the "New" ToolButton and its SimpleAction.
        //Using actions allows you to add them to the app menu
        //without duplicating code.
        let newAction = new Gio.SimpleAction({ name: 'new'});
        newAction.connect('activate', () => { this._newCB(); });
        this.application.add_action(newAction);//note: this action is added to the app

        this._newButton = Gtk.ToolButton.new_from_stock(Gtk.STOCK_NEW);
        this._newButton.is_important = true;
        this._toolbar.add(this._newButton);
        this._newButton.show();
        this._newButton.action_name = "app.new";

        //create the "Open" ToolButton and its SimpleAction
        let openAction = new Gio.SimpleAction({ name: 'open'});
        openAction.connect('activate', () => { this._openCB(); });
        this.application.add_action(openAction);

        this._openButton = Gtk.ToolButton.new_from_stock(Gtk.STOCK_OPEN);
        this._openButton.is_important = true;
        this._toolbar.add(this._openButton);
        this._openButton.show();
        this._openButton.action_name = "app.open";

        //create the "Undo" ToolButton and its SimpleAction
        let undoAction = new Gio.SimpleAction({ name: 'undo'});
        undoAction.connect('activate', () => { this._undoCB(); });
        this._window.add_action(undoAction);//note this action is added to the window

        this._undoButton = Gtk.ToolButton.new_from_stock(Gtk.STOCK_UNDO);
        this._undoButton.is_important = true;
        this._toolbar.add(this._undoButton);
        this._undoButton.show();
        this._undoButton.action_name = "win.undo";

        //create the "Fullscreen" ToolButton and its SimpleAction
        let fullscreenToggleAction = new Gio.SimpleAction ({ name: 'fullscreenToggle' });
        fullscreenToggleAction.connect('activate', () => {
            this._fullscreenToggleCB();
        });
        this._window.add_action(fullscreenToggleAction);

        this._fullscreenButton = Gtk.ToolButton.new_from_stock(Gtk.STOCK_FULLSCREEN);
        this._fullscreenButton.is_important = true;
        this._toolbar.add(this._fullscreenButton);
        this._fullscreenButton.show();
        this._fullscreenButton.action_name = "win.fullscreenToggle";

        //create the "leaveFullscreen" ToolButton, and set the action name to "win.fullscreenToggle"
        this._leaveFullscreenButton = Gtk.ToolButton.new_from_stock(Gtk.STOCK_LEAVE_FULLSCREEN);
        this._leaveFullscreenButton.is_important = true;
        this._toolbar.add(this._leaveFullscreenButton);
        this._leaveFullscreenButton.action_name = "win.fullscreenToggle";
    }

    _initMenus() {
        let menu = new Gio.Menu();
        menu.append("New", 'app.new');
        menu.append("Open", 'app.open');
        menu.append("Quit", 'app.quit');

        this.application.set_app_menu(menu);

        let quitAction = new Gio.SimpleAction({name: 'quit' });
        quitAction.connect('activate', () => { this._window.destroy(); });
        this.application.add_action(quitAction);
    }

    _newCB() {
        print("You clicked 'New'.");
    }

    _openCB() {
        print("You clicked 'Open'.");
    }

    _undoCB() {
        print ("You clicked 'Undo'.");
    }

    _fullscreenToggleCB() {
        if ((this._window.get_window().get_state() & Gdk.WindowState.FULLSCREEN) != 0 ) {
              this._window.unfullscreen();
              this._leaveFullscreenButton.hide();
              this._fullscreenButton.show();
        } else {
             this._window.fullscreen();
             this._fullscreenButton.hide();
             this._leaveFullscreenButton.show();
        }
    }
};

//run the application
let app = new Application();
app.application.run(ARGV);
In this sample we used the following:
Gtk.Window
Gtk.Toolbar
Gtk.ToolButton
Gtk Stock items
Gdk.WindowState