swOperation/node_modules/size-sensor/lib/sensorPool.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.removeSensor = exports.getSensor = void 0;

var _id = _interopRequireDefault(require("./id"));

var _sensors = require("./sensors");

var _constant = require("./constant");

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/**
 * Created by hustcc on 18/6/9.
 * Contract: i@hust.cc
 */

/**
 * all the sensor objects.
 * sensor pool
 */
var Sensors = {};
/**
 * get one sensor
 * @param element
 * @returns {*}
 */

var getSensor = function getSensor(element) {
  var sensorId = element.getAttribute(_constant.SizeSensorId); // 1. if the sensor exists, then use it

  if (sensorId && Sensors[sensorId]) {
    return Sensors[sensorId];
  } // 2. not exist, then create one


  var newId = (0, _id["default"])();
  element.setAttribute(_constant.SizeSensorId, newId);
  var sensor = (0, _sensors.createSensor)(element); // add sensor into pool

  Sensors[newId] = sensor;
  return sensor;
};
/**
 * 移除 sensor
 * @param sensor
 */


exports.getSensor = getSensor;

var removeSensor = function removeSensor(sensor) {
  var sensorId = sensor.element.getAttribute(_constant.SizeSensorId); // remove attribute

  sensor.element.removeAttribute(_constant.SizeSensorId); // remove event, dom of the sensor used

  sensor.destroy(); // exist, then remove from pool

  if (sensorId && Sensors[sensorId]) {
    delete Sensors[sensorId];
  }
};

exports.removeSensor = removeSensor;