electronotes/app/main/function/dialog.js

const {dialog} = require('electron');
const obj = {};

obj.messagePromise = function(title, content, type = '', buttons = ['Ok'], defaultButton = 0, attach = true) {
    const opts = {
        type: type,
        title: title,
        message: content,
        buttons: buttons,
        defaultId: defaultButton
    };
    if (attach) {
        return dialog.showMessageBox(mainWindow, opts);
    } else {
        return dialog.showMessageBox(opts);
    }
}

obj.message = function(title, content, type = 'info', buttons = ['Ok'], defaultButton = 0, attach = true, callback = null) {
    const promise = obj.messagePromise(title, content, type, buttons, defaultButton, attach);
    if (callback !== null) {
        promise.then(data => {
            callback(data.response, buttons[data.response]);
        });
    }
}

module.exports = obj;