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/*** module: node_modules/absol/src/HTML5/DomSignal.js ***/
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.setDomImmediate = setDomImmediate;
exports.clearDomImmediate = clearDomImmediate;
exports.default = void 0;

var _EventEmitter = _interopRequireDefault(require("./EventEmitter"));

var _AElement = _interopRequireDefault(require("./AElement"));

var _OOP = _interopRequireDefault(require("./OOP"));

var _AttachHook = _interopRequireDefault(require("./AttachHook"));

var _safeThrow = _interopRequireDefault(require("../Code/safeThrow"));


/***
 *
 * @extends EventEmitter
 * @param {AElement=} attachHookElt
 * @constructor
 */
function DomSignal(attachHookElt) {
  _EventEmitter.default.call(this);

  this.signals = {};
  this.ev_attached = this.ev_attached.bind(this);
  this.$attachhook = attachHookElt || this.createBuildInAttachHook();
  this.$attachhookParent = attachHookElt && attachHookElt.parentElement || null;
  this.$attachhook.on('attached', this.ev_attached);
  this.$attachhook.ofDS = this;
  this.isPending = false;
}

_OOP.default.mixClass(DomSignal, _EventEmitter.default);

DomSignal.prototype.createBuildInAttachHook = function () {
  var elt = document.createElement('img');
  Object.defineProperties(elt, Object.getOwnPropertyDescriptors(_AElement.default.prototype));
  Object.defineProperties(elt, Object.getOwnPropertyDescriptors(_AttachHook.default.prototype));
  Object.defineProperties(elt, _AttachHook.default.property);

  _AElement.default.call(elt);

  elt.setAttribute('src', '');
  elt.defineEvent('attached');
  elt.addStyle('display', 'none');

  _AttachHook.default.call(elt);

  elt.cancelWaiting();
  return elt;
};

DomSignal.prototype.execSignal = function () {
  var signals = this.signals;
  this.signals = {};
  this.isPending = false;

  for (var name in signals) {
    this.fire.apply(this, [name].concat(signals[name]));
  }
};

DomSignal.prototype.emit = function (name) {
  if (this.$attachhook && (this.$attachhook.canceled || this.$attachhook.attached) && !this.isPending) {
    this.$attachhook.remove();
    this.$attachhook.resetState();
  }

  this.signals[name] = Array.prototype.slice.call(arguments, 1);
  this.isPending = true;

  if (!this.$attachhookParent) {
    this.$attachhookParent = document.body;
  }

  if (!this.$attachhook.parentElement) {
    this.$attachhook.resetState();
    this.$attachhookParent.appendChild(this.$attachhook);
  }
};

DomSignal.prototype.ev_attached = function () {
  this.execSignal();
};

var _default = DomSignal;
exports.default = _default;
var currentAT = null;
var callbackList = {};
var id = 0;

function setDomImmediate(callback) {
  var cid = ++id;
  callbackList[cid] = {
    exec: callback,
    args: Array.prototype.slice.call(arguments, 1)
  };

  if (!currentAT) {
    currentAT = document.createElement('img');
    currentAT.setAttribute('src', '');
    currentAT.addEventListener('error', function () {
      currentAT.remove();
      currentAT = null;
      Object.keys(callbackList).map(function (key) {
        var cb = callbackList[key];
        delete callbackList[key];

        if (cb) {
          try {
            cb.exec.call(null, cb.args);
          } catch (error) {
            (0, _safeThrow.default)(error);
          }
        }
      });
    });
  }

  return cid;
}

function clearDomImmediate(id) {
  delete callbackList[id];
}