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File: public/js/tinymce/src/core/src/main/js/util/Promise.js

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File: public/js/tinymce/src/core/src/main/js/util/Promise.js
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/** * Promise.js * * Released under LGPL License. * Copyright (c) 1999-2017 Ephox Corp. All rights reserved * * Promise polyfill under MIT license: https://github.com/taylorhakes/promise-polyfill * * License: http://www.tinymce.com/license * Contributing: http://www.tinymce.com/contributing */ /* eslint-disable */ /* jshint ignore:start */ /** * Modifed to be a feature fill and wrapped as tinymce module. */ define( 'tinymce.core.util.Promise', [], function () { if (window.Promise) { return window.Promise; } // Use polyfill for setImmediate for performance gains var asap = Promise.immediateFn || (typeof setImmediate === 'function' && setImmediate) || function (fn) { setTimeout(fn, 1); }; // Polyfill for Function.prototype.bind function bind(fn, thisArg) { return function () { fn.apply(thisArg, arguments); }; } var isArray = Array.isArray || function (value) { return Object.prototype.toString.call(value) === "[object Array]"; }; function Promise(fn) { if (typeof this !== 'object') throw new TypeError('Promises must be constructed via new'); if (typeof fn !== 'function') throw new TypeError('not a function'); this._state = null; this._value = null; this._deferreds = []; doResolve(fn, bind(resolve, this), bind(reject, this)); } function handle(deferred) { var me = this; if (this._state === null) { this._deferreds.push(deferred); return; } asap(function () { var cb = me._state ? deferred.onFulfilled : deferred.onRejected; if (cb === null) { (me._state ? deferred.resolve : deferred.reject)(me._value); return; } var ret; try { ret = cb(me._value); } catch (e) { deferred.reject(e); return; } deferred.resolve(ret); }); } function resolve(newValue) { try { //Promise Resolution Procedure: https://github.com/promises-aplus/promises-spec#the-promise-resolution-procedure if (newValue === this) throw new TypeError('A promise cannot be resolved with itself.'); if (newValue && (typeof newValue === 'object' || typeof newValue === 'function')) { var then = newValue.then; if (typeof then === 'function') { doResolve(bind(then, newValue), bind(resolve, this), bind(reject, this)); return; } } this._state = true; this._value = newValue; finale.call(this); } catch (e) { reject.call(this, e); } } function reject(newValue) { this._state = false; this._value = newValue; finale.call(this); } function finale() { for (var i = 0, len = this._deferreds.length; i < len; i++) { handle.call(this, this._deferreds[i]); } this._deferreds = null; } function Handler(onFulfilled, onRejected, resolve, reject) { this.onFulfilled = typeof onFulfilled === 'function' ? onFulfilled : null; this.onRejected = typeof onRejected === 'function' ? onRejected : null; this.resolve = resolve; this.reject = reject; } /** * Take a potentially misbehaving resolver function and make sure * onFulfilled and onRejected are only called once. * * Makes no guarantees about asynchrony. */ function doResolve(fn, onFulfilled, onRejected) { var done = false; try { fn(function (value) { if (done) return; done = true; onFulfilled(value); }, function (reason) { if (done) return; done = true; onRejected(reason); }); } catch (ex) { if (done) return; done = true; onRejected(ex); } } Promise.prototype['catch'] = function (onRejected) { return this.then(null, onRejected); }; Promise.prototype.then = function (onFulfilled, onRejected) { var me = this; return new Promise(function (resolve, reject) { handle.call(me, new Handler(onFulfilled, onRejected, resolve, reject)); }); }; Promise.all = function () { var args = Array.prototype.slice.call(arguments.length === 1 && isArray(arguments[0]) ? arguments[0] : arguments); return new Promise(function (resolve, reject) { if (args.length === 0) return resolve([]); var remaining = args.length; function res(i, val) { try { if (val && (typeof val === 'object' || typeof val === 'function')) { var then = val.then; if (typeof then === 'function') { then.call(val, function (val) { res(i, val); }, reject); return; } } args[i] = val; if (--remaining === 0) { resolve(args); } } catch (ex) { reject(ex); } } for (var i = 0; i < args.length; i++) { res(i, args[i]); } }); }; Promise.resolve = function (value) { if (value && typeof value === 'object' && value.constructor === Promise) { return value; } return new Promise(function (resolve) { resolve(value); }); }; Promise.reject = function (value) { return new Promise(function (resolve, reject) { reject(value); }); }; Promise.race = function (values) { return new Promise(function (resolve, reject) { for (var i = 0, len = values.length; i < len; i++) { values[i].then(resolve, reject); } }); }; return Promise; } ); /* jshint ignore:end */ /* eslint-enable */