@zohodesk/platform-middleware/lib/platformfiles/ProductSDK.js

Generalized Contract for the events from Marketplace App, In-App widgets, CRM-Plus and EFC

"use strict";

var PlatformInstance = function (PlatformInstance) {
  var eventHandlers = {};

  function sendEvent(event) {
    return new Promise(function (resolve, reject) {
      var eventCallbackObj = window.platformConfig.eventHandlers;
      var eventListenerName = window.platformConfig.eventListenerName;
      event.promise = {
        resolve: resolve,
        reject: reject
      };
      event.EVENT_FROM = 'PRODUCT';
      eventCallbackObj[eventListenerName](event);
    });
  }

  function bindeventHandlers(event) {
    var eventName = event.name,
        eventHandler = event.handlerFunction;

    if (typeof eventName !== 'string') {
      throw new Error('Invalid eventname parameter passed.');
    }

    if (typeof eventHandler !== 'function') {
      throw new Error('Invalid function parameter passed.');
    }

    var handlersArray = eventHandlers[eventName];

    if (!Array.isArray(handlersArray)) {
      eventHandlers[eventName] = handlersArray = [];
    }

    handlersArray.push(eventHandler);
  }

  function executeEventHandlers(event) {
    var eventName = event.name,
        eventData = event.data;
    var handlersArray = eventHandlers[eventName];

    if (handlersArray) {
      handlersArray.forEach(function (handlerFunction) {
        handlerFunction(eventData);
      });
    }
  }

  function init() {
    return {
      sendEvent: sendEvent,
      on: bindeventHandlers
    };
  }

  PlatformInstance.init = init; //Internal Event

  PlatformInstance.BroadcastEvent = executeEventHandlers;
  return PlatformInstance;
}(window.PlatformInstance = {} || {});

(function (globalNameSpace) {
  var appInit = PlatformInstance.init();

  function get(property, payload) {
    var options = {};
    options.type = 'GET_DATA';
    options.property = property;
    options.payload = payload;
    return appInit.sendEvent(options);
  }

  function set(property, payload) {
    var options = {};
    options.type = 'SET_DATA';
    options.property = property;
    options.payload = payload;
    return appInit.sendEvent(options);
  }

  function invoke(payload) {
    var options = {};
    options.type = 'INVOKE';
    options.payload = payload;
    return appInit.sendEvent(options);
  }

  function invokeMethodCommonPattern(action, payload) {
    var options = {};
    options.type = action;
    options.payload = payload;
    return appInit.sendEvent(options);
  }

  function on(eventName, handlerFunction) {
    var options = {};
    options.name = eventName;
    options.handlerFunction = handlerFunction;
    appInit.on(options);
  }

  function dispatch(action, payload) {
    var options = {};
    options.type = 'ACTION';
    options.property = action;
    options.payload = payload;
    return appInit.sendEvent(options);
  }

  window[globalNameSpace].get = get;
  window[globalNameSpace].set = set;
  window[globalNameSpace].invoke = window.platformConfig.overrideInvokeMethodToCommonPattern ? invokeMethodCommonPattern : invoke;
  window[globalNameSpace].on = on;
  window[globalNameSpace].dispatch = dispatch;
})(window['globalNameSpace'] || '');