custom-common-frontend-contribution.ts

import { injectable } from "inversify";
import { CommonFrontendContribution, CommonMenus, CommonCommands } from "@theia/core/lib/browser";
import { MenuModelRegistry } from "@theia/core";

@injectable()
export class CustomCommonFrontendContribution extends CommonFrontendContribution {
    registerMenus(registry: MenuModelRegistry): void {
        registry.registerSubmenu(CommonMenus.FILE, 'File');
        registry.registerSubmenu(CommonMenus.EDIT, 'Edit');

        registry.registerSubmenu(CommonMenus.FILE_SETTINGS_SUBMENU, 'Settings');

        registry.registerMenuAction(CommonMenus.EDIT_UNDO, {
            commandId: CommonCommands.UNDO.id,
            order: '0'
        });
        registry.registerMenuAction(CommonMenus.EDIT_UNDO, {
            commandId: CommonCommands.REDO.id,
            order: '1'
        });

        registry.registerMenuAction(CommonMenus.EDIT_FIND, {
            commandId: CommonCommands.FIND.id,
            order: '0'
        });
        registry.registerMenuAction(CommonMenus.EDIT_FIND, {
            commandId: CommonCommands.REPLACE.id,
            order: '1'
        });

        registry.registerMenuAction(CommonMenus.EDIT_CLIPBOARD, {
            commandId: CommonCommands.CUT.id,
            order: '0'
        });
        registry.registerMenuAction(CommonMenus.EDIT_CLIPBOARD, {
            commandId: CommonCommands.COPY.id,
            order: '1'
        });
        registry.registerMenuAction(CommonMenus.EDIT_CLIPBOARD, {
            commandId: CommonCommands.PASTE.id,
            order: '2'
        });
    }
}