@thewtex/vtk.js-esm/vendor/webworker-promise/lib/register.js

Visualization Toolkit for the Web

import { t as tinyEmitter } from './tiny-emitter.js';

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }



var MESSAGE_RESULT = 0;
var MESSAGE_EVENT = 1;

var RESULT_ERROR = 0;
var RESULT_SUCCESS = 1;

var DEFAULT_HANDLER = 'main';

var isPromise = function isPromise(o) {
  return (typeof o === 'undefined' ? 'undefined' : _typeof(o)) === 'object' && typeof o.then === 'function' && typeof o.catch === 'function';
};

function RegisterPromise(fn) {
  var handlers = _defineProperty({}, DEFAULT_HANDLER, fn);
  var sendPostMessage = self.postMessage.bind(self);

  var server = new (function (_TinyEmitter) {
    _inherits(WorkerRegister, _TinyEmitter);

    function WorkerRegister() {
      _classCallCheck(this, WorkerRegister);

      return _possibleConstructorReturn(this, (WorkerRegister.__proto__ || Object.getPrototypeOf(WorkerRegister)).apply(this, arguments));
    }

    _createClass(WorkerRegister, [{
      key: 'emit',
      value: function emit(eventName) {
        for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
          args[_key - 1] = arguments[_key];
        }

        sendPostMessage({ eventName: eventName, args: args });
        return this;
      }
    }, {
      key: 'emitLocally',
      value: function emitLocally(eventName) {
        var _get2;

        for (var _len2 = arguments.length, args = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
          args[_key2 - 1] = arguments[_key2];
        }

        (_get2 = _get(WorkerRegister.prototype.__proto__ || Object.getPrototypeOf(WorkerRegister.prototype), 'emit', this)).call.apply(_get2, [this, eventName].concat(args));
      }
    }, {
      key: 'operation',
      value: function operation(name, handler) {
        handlers[name] = handler;
        return this;
      }
    }]);

    return WorkerRegister;
  }(tinyEmitter))();

  var run = function run(messageId, payload, handlerName) {

    var onSuccess = function onSuccess(result) {
      if (result && result instanceof TransferableResponse) {
        sendResult(messageId, RESULT_SUCCESS, result.payload, result.transferable);
      } else {
        sendResult(messageId, RESULT_SUCCESS, result);
      }
    };

    var onError = function onError(e) {
      sendResult(messageId, RESULT_ERROR, {
        message: e.message,
        stack: e.stack
      });
    };

    try {
      var result = runFn(messageId, payload, handlerName);
      if (isPromise(result)) {
        result.then(onSuccess).catch(onError);
      } else {
        onSuccess(result);
      }
    } catch (e) {
      onError(e);
    }
  };

  var runFn = function runFn(messageId, payload, handlerName) {
    var handler = handlers[handlerName || DEFAULT_HANDLER];
    if (!handler) throw new Error('Not found handler for this request');

    return handler(payload, sendEvent.bind(null, messageId));
  };

  var sendResult = function sendResult(messageId, success, payload) {
    var transferable = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : [];

    sendPostMessage([MESSAGE_RESULT, messageId, success, payload], transferable);
  };

  var sendEvent = function sendEvent(messageId, eventName, payload) {
    if (!eventName) throw new Error('eventName is required');

    if (typeof eventName !== 'string') throw new Error('eventName should be string');

    sendPostMessage([MESSAGE_EVENT, messageId, eventName, payload]);
  };

  self.addEventListener('message', function (_ref) {
    var data = _ref.data;

    if (Array.isArray(data)) {
      run.apply(undefined, _toConsumableArray(data));
    } else if (data && data.eventName) {
      server.emitLocally.apply(server, [data.eventName].concat(_toConsumableArray(data.args)));
    }
  });

  return server;
}

var TransferableResponse = function TransferableResponse(payload, transferable) {
  _classCallCheck(this, TransferableResponse);

  this.payload = payload;
  this.transferable = transferable;
};

var register = RegisterPromise;
var TransferableResponse_1 = TransferableResponse;
register.TransferableResponse = TransferableResponse_1;

export { register as r };