326c5f98902ccd335b5b.worker.js

/******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
/******/ 	// The require function
/******/ 	function __webpack_require__(moduleId) {
/******/
/******/ 		// Check if module is in cache
/******/ 		if(installedModules[moduleId]) {
/******/ 			return installedModules[moduleId].exports;
/******/ 		}
/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = installedModules[moduleId] = {
/******/ 			i: moduleId,
/******/ 			l: false,
/******/ 			exports: {}
/******/ 		};
/******/
/******/ 		// Execute the module function
/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ 		// Flag the module as loaded
/******/ 		module.l = true;
/******/
/******/ 		// Return the exports of the module
/******/ 		return module.exports;
/******/ 	}
/******/
/******/
/******/ 	// expose the modules object (__webpack_modules__)
/******/ 	__webpack_require__.m = modules;
/******/
/******/ 	// expose the module cache
/******/ 	__webpack_require__.c = installedModules;
/******/
/******/ 	// define getter function for harmony exports
/******/ 	__webpack_require__.d = function(exports, name, getter) {
/******/ 		if(!__webpack_require__.o(exports, name)) {
/******/ 			Object.defineProperty(exports, name, { enumerable: true, get: getter });
/******/ 		}
/******/ 	};
/******/
/******/ 	// define __esModule on exports
/******/ 	__webpack_require__.r = function(exports) {
/******/ 		if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
/******/ 			Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
/******/ 		}
/******/ 		Object.defineProperty(exports, '__esModule', { value: true });
/******/ 	};
/******/
/******/ 	// create a fake namespace object
/******/ 	// mode & 1: value is a module id, require it
/******/ 	// mode & 2: merge all properties of value into the ns
/******/ 	// mode & 4: return value when already ns object
/******/ 	// mode & 8|1: behave like require
/******/ 	__webpack_require__.t = function(value, mode) {
/******/ 		if(mode & 1) value = __webpack_require__(value);
/******/ 		if(mode & 8) return value;
/******/ 		if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
/******/ 		var ns = Object.create(null);
/******/ 		__webpack_require__.r(ns);
/******/ 		Object.defineProperty(ns, 'default', { enumerable: true, value: value });
/******/ 		if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
/******/ 		return ns;
/******/ 	};
/******/
/******/ 	// getDefaultExport function for compatibility with non-harmony modules
/******/ 	__webpack_require__.n = function(module) {
/******/ 		var getter = module && module.__esModule ?
/******/ 			function getDefault() { return module['default']; } :
/******/ 			function getModuleExports() { return module; };
/******/ 		__webpack_require__.d(getter, 'a', getter);
/******/ 		return getter;
/******/ 	};
/******/
/******/ 	// Object.prototype.hasOwnProperty.call
/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ 	// __webpack_public_path__
/******/ 	__webpack_require__.p = "";
/******/
/******/
/******/ 	// Load entry module and return exports
/******/ 	return __webpack_require__(__webpack_require__.s = "./node_modules/babel-loader/lib/index.js?!./node_modules/scratch-storage/src/FetchWorkerTool.worker.js");
/******/ })
/************************************************************************/
/******/ ({

/***/ "./node_modules/babel-loader/lib/index.js?!./node_modules/scratch-storage/src/FetchWorkerTool.worker.js":
/*!************************************************************************************************************!*\
  !*** ./node_modules/babel-loader/lib??ref--4!./node_modules/scratch-storage/src/FetchWorkerTool.worker.js ***!
  \************************************************************************************************************/
/*! no static exports found */
/***/ (function(module, exports) {

/* eslint-env worker */
var jobsActive = 0;
var complete = [];
var intervalId = null;
/**
 * Register a step function.
 *
 * Step checks if there are completed jobs and if there are sends them to the
 * parent. Then it checks the jobs count. If there are no further jobs, clear
 * the step.
 */

var registerStep = function registerStep() {
  intervalId = setInterval(function () {
    if (complete.length) {
      // Send our chunk of completed requests and instruct postMessage to
      // transfer the buffers instead of copying them.
      postMessage(complete.slice(), // Instruct postMessage that these buffers in the sent message
      // should use their Transferable trait. After the postMessage
      // call the "buffers" will still be in complete if you looked,
      // but they will all be length 0 as the data they reference has
      // been sent to the window. This lets us send a lot of data
      // without the normal postMessage behaviour of making a copy of
      // all of the data for the window.
      complete.map(function (response) {
        return response.buffer;
      }).filter(Boolean));
      complete.length = 0;
    }

    if (jobsActive === 0) {
      clearInterval(intervalId);
      intervalId = null;
    }
  }, 1);
};
/**
 * Receive a job from the parent and fetch the requested data.
 * @param {object} options.job A job id, url, and options descriptor to perform.
 */


var onMessage = function onMessage(_ref) {
  var job = _ref.data;

  if (jobsActive === 0 && !intervalId) {
    registerStep();
  }

  jobsActive++;
  fetch(job.url, job.options).then(function (response) {
    return response.arrayBuffer();
  }).then(function (buffer) {
    return complete.push({
      id: job.id,
      buffer: buffer
    });
  }).catch(function (error) {
    return complete.push({
      id: job.id,
      error: error
    });
  }).then(function () {
    return jobsActive--;
  });
};

if (self.fetch) {
  postMessage({
    support: {
      fetch: true
    }
  });
  self.addEventListener('message', onMessage);
} else {
  postMessage({
    support: {
      fetch: false
    }
  });
  self.addEventListener('message', function (_ref2) {
    var job = _ref2.data;
    postMessage([{
      id: job.id,
      error: new Error('fetch is unavailable')
    }]);
  });
}

/***/ })

/******/ });
//# sourceMappingURL=326c5f98902ccd335b5b.worker.js.map