@injectable()
export class AsyncMenuContribution implements MenuContribution {
    @inject(FileSystem)
    private fileSystem: FileSystem;
    @inject(CommandRegistry)
    private commands: CommandRegistry;
    async registerMenus(menus: MenuModelRegistry): Promise<void> {
        const menuPath = ["navigator-context-menu", "dynamic-sub-menu"];
        // get test directory
        const fileStat = await this.fileSystem.getFileStat("file:/Users/vivienjovet/Desktop/test");
        // register sub menu to show our dynamic menu actions
        menus.registerSubmenu(menuPath, "Dynamic Sub Menu");
        // register a menu action for each child directory
        fileStat?.children
            ?.filter(stat => stat.isDirectory)
            .forEach(dir => {
                const uri = new URI(dir.uri);
                // register a command for that directory
                this.commands.registerCommand(
                    {
                        id: uri.displayName,
                        label: uri.displayName
                    },
                    {
                        execute: () => alert(uri.displayName)
                    }
                );
                // register a menu for the command
                menus.registerMenuAction(menuPath, {
                    commandId: uri.displayName
                });
            });
    }
}