electron-main-menu-factory.ts

import { injectable } from 'inversify'
import { remote } from 'electron';
import { isOSX } from '@theia/core/lib/common/os';
import { Keybinding } from '@theia/core/lib/common/keybinding';
import { CompositeMenuNode, MAIN_MENU_BAR, MenuPath } from '@theia/core/lib/common/menu';
import { ElectronMainMenuFactory as TheiaElectronMainMenuFactory, ElectronMenuOptions } from '@theia/core/lib/electron-browser/menu/electron-main-menu-factory';
import { ArduinoMenus, PlaceholderMenuNode } from '../../../browser/menu/arduino-menus';

@injectable()
export class ElectronMainMenuFactory extends TheiaElectronMainMenuFactory {

    createMenuBar(): Electron.Menu {
        this._toggledCommands.clear(); // https://github.com/eclipse-theia/theia/issues/8977
        const menuModel = this.menuProvider.getMenu(MAIN_MENU_BAR);
        const template = this.fillMenuTemplate([], menuModel);
        if (isOSX) {
            template.unshift(this.createOSXMenu());
        }
        const menu = remote.Menu.buildFromTemplate(this.escapeAmpersand(template));
        this._menu = menu;
        return menu;
    }

    createContextMenu(menuPath: MenuPath, args?: any[]): Electron.Menu {
        const menuModel = this.menuProvider.getMenu(menuPath);
        const template = this.fillMenuTemplate([], menuModel, args, { showDisabled: false });
        return remote.Menu.buildFromTemplate(this.escapeAmpersand(template));
    }

    // TODO: remove after https://github.com/eclipse-theia/theia/pull/9231
    private escapeAmpersand(template: Electron.MenuItemConstructorOptions[]): Electron.MenuItemConstructorOptions[] {
        for (const option of template) {
            if (option.label) {
                option.label = option.label.replace(/\&+/g, '&$&');
            }
            if (option.submenu) {
                this.escapeAmpersand(option.submenu as Electron.MenuItemConstructorOptions[]);
            }
        }
        return template;
    }

    protected acceleratorFor(keybinding: Keybinding): string {
        // TODO: https://github.com/eclipse-theia/theia/issues/8207
        return this.keybindingRegistry.resolveKeybinding(keybinding)
            .map(binding => this.keybindingRegistry.acceleratorForKeyCode(binding, '+'))
            .join('')
            .replace('←', 'Left')
            .replace('→', 'Right');
    }

    protected createOSXMenu(): Electron.MenuItemConstructorOptions {
        const { submenu } = super.createOSXMenu();
        const label = 'Arduino IDE';
        if (!!submenu && !(submenu instanceof remote.Menu)) {
            const [/* about */, /* preferences */, ...rest] = submenu;
            const about = this.fillMenuTemplate([], this.menuProvider.getMenu(ArduinoMenus.HELP__ABOUT_GROUP));
            const preferences = this.fillMenuTemplate([], this.menuProvider.getMenu(ArduinoMenus.FILE__PREFERENCES_GROUP));
            const advanced = this.fillMenuTemplate([], this.menuProvider.getMenu(ArduinoMenus.FILE__ADVANCED_GROUP));
            return {
                label,
                submenu: [
                    ...about,
                    { type: 'separator' },
                    ...preferences,
                    ...advanced,
                    { type: 'separator' },
                    ...rest
                ]
            };
        }
        return { label, submenu };
    }

    protected handleDefault(menuNode: CompositeMenuNode, args: any[] = [], options?: ElectronMenuOptions): Electron.MenuItemConstructorOptions[] {
        if (menuNode instanceof PlaceholderMenuNode) {
            return [{
                label: menuNode.label,
                enabled: false,
                visible: true
            }];
        }
        return [];
    }

}