Crisp Plugin frontend settings save

crisp-plugin-settings-save.js

// Globals
var _message_source = null;
var _message_origin = null;

// Methods
var __receive_message = function(event) {
  var _data = JSON.parse(event.data);

  if (_data.type && _data.payload) {
    // Store message parameters
    // TODO: ensure to store those 2 variables in a global, this will be \
    //   re-used to send updated settings back to the parent origin
    _message_source = event.source;
    _message_origin = event.origin;

    switch (_data.type) {
      case "settings": {
        __receive_message_settings(_data.payload);

        break;
      }
    }
  }
};

var __receive_message_settings = function(payload) {
  if (payload.settings) {
    // TODO: do something with the received settings (make sure to handle NULL \
    //   settings as well)
  }
};

var __send_message = function(type, payload) {
  // Send data to origin
  if (_message_source) {
    // Submit newly-frozen settings
    _message_source.postMessage(
      {
        type    : type,
        payload : JSON.stringify(payload)
      },

      (_message_origin || [])
    );

    return true;
  }

  return false;
};

var __send_message_settings = function(type, payload) {
  return __send_message("settings", payload);
};

// Listeners
window.addEventListener("message", __receive_message, false);