Electron.NET/ElectronNET.Host/api/menu.ts

import { Menu, BrowserWindow } from 'electron';
const contextMenuItems = (global['contextMenuItems'] = global['contextMenuItems'] || []);
let electronSocket;

export = (socket: SocketIO.Socket) => {
    electronSocket = socket;
    socket.on('menu-setContextMenu', (browserWindowId, menuItems) => {
        const menu = Menu.buildFromTemplate(menuItems);

        addContextMenuItemClickConnector(menu.items, browserWindowId, (id, browserWindowId) => {
            electronSocket.emit('contextMenuItemClicked', [id, browserWindowId]);
        });

        const index = contextMenuItems.findIndex(contextMenu => contextMenu.browserWindowId === browserWindowId);

        const contextMenuItem = {
            menu: menu,
            browserWindowId: browserWindowId
        };

        if (index === -1) {
            contextMenuItems.push(contextMenuItem);
        } else {
            contextMenuItems[index] = contextMenuItem;
        }
    });

    function addContextMenuItemClickConnector(menuItems, browserWindowId, callback) {
        menuItems.forEach((item) => {
            if (item.submenu && item.submenu.items.length > 0) {
                addContextMenuItemClickConnector(item.submenu.items, browserWindowId, callback);
            }

            if ('id' in item && item.id) {
                item.click = () => { callback(item.id, browserWindowId); };
            }
        });
    }

    socket.on('menu-contextMenuPopup', (browserWindowId) => {
        contextMenuItems.forEach(x => {
            if (x.browserWindowId === browserWindowId) {
                const browserWindow = BrowserWindow.fromId(browserWindowId);
                x.menu.popup(browserWindow);
            }
        });
    });

    socket.on('menu-setApplicationMenu', (menuItems) => {
        const menu = Menu.buildFromTemplate(menuItems);

        addMenuItemClickConnector(menu.items, (id) => {
            electronSocket.emit('menuItemClicked', id);
        });

        Menu.setApplicationMenu(menu);
    });

    function addMenuItemClickConnector(menuItems, callback) {
        menuItems.forEach((item) => {
            if (item.submenu && item.submenu.items.length > 0) {
                addMenuItemClickConnector(item.submenu.items, callback);
            }

            if ('id' in item && item.id) {
                item.click = () => { callback(item.id); };
            }
        });
    }
};