overleaf/services/web/public/js/libs/pdfjs-1.8.188/compatibility.js
2017-06-06 12:18:58 +01:00

1840 lines
51 KiB
JavaScript

/* Copyright 2017 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* eslint-disable no-extend-native */
/* globals VBArray, PDFJS, global */
// Skip compatibility checks for the extensions and if we already ran
// this module.
if ((typeof PDFJSDev === 'undefined' ||
!PDFJSDev.test('FIREFOX || MOZCENTRAL || CHROME')) &&
(typeof PDFJS === 'undefined' || !PDFJS.compatibilityChecked)) {
var globalScope = (typeof window !== 'undefined') ? window :
(typeof global !== 'undefined') ? global :
(typeof self !== 'undefined') ? self : this;
var userAgent = (typeof navigator !== 'undefined' && navigator.userAgent) || '';
var isAndroid = /Android/.test(userAgent);
var isAndroidPre3 = /Android\s[0-2][^\d]/.test(userAgent);
var isAndroidPre5 = /Android\s[0-4][^\d]/.test(userAgent);
var isChrome = userAgent.indexOf('Chrom') >= 0;
var isChromeWithRangeBug = /Chrome\/(39|40)\./.test(userAgent);
var isIOSChrome = userAgent.indexOf('CriOS') >= 0;
var isIE = userAgent.indexOf('Trident') >= 0;
var isIOS = /\b(iPad|iPhone|iPod)(?=;)/.test(userAgent);
var isOpera = userAgent.indexOf('Opera') >= 0;
var isSafari = /Safari\//.test(userAgent) &&
!/(Chrome\/|Android\s)/.test(userAgent);
var hasDOM = typeof window === 'object' && typeof document === 'object';
// Initializing PDFJS global object here, it case if we need to change/disable
// some PDF.js features, e.g. range requests
if (typeof PDFJS === 'undefined') {
globalScope.PDFJS = {};
}
PDFJS.compatibilityChecked = true;
// Checking if the typed arrays are supported
// Support: iOS<6.0 (subarray), IE<10, Android<4.0
(function checkTypedArrayCompatibility() {
if (typeof Uint8Array !== 'undefined') {
// Support: iOS<6.0
if (typeof Uint8Array.prototype.subarray === 'undefined') {
Uint8Array.prototype.subarray = function subarray(start, end) {
return new Uint8Array(this.slice(start, end));
};
Float32Array.prototype.subarray = function subarray(start, end) {
return new Float32Array(this.slice(start, end));
};
}
// Support: Android<4.1
if (typeof Float64Array === 'undefined') {
globalScope.Float64Array = Float32Array;
}
return;
}
function subarray(start, end) {
return new TypedArray(this.slice(start, end));
}
function setArrayOffset(array, offset) {
if (arguments.length < 2) {
offset = 0;
}
for (var i = 0, n = array.length; i < n; ++i, ++offset) {
this[offset] = array[i] & 0xFF;
}
}
function Uint32ArrayView(buffer, length) {
this.buffer = buffer;
this.byteLength = buffer.length;
this.length = length;
ensureUint32ArrayViewProps(this.length);
}
Uint32ArrayView.prototype = Object.create(null);
var uint32ArrayViewSetters = 0;
function createUint32ArrayProp(index) {
return {
get() {
var buffer = this.buffer, offset = index << 2;
return (buffer[offset] | (buffer[offset + 1] << 8) |
(buffer[offset + 2] << 16) | (buffer[offset + 3] << 24)) >>> 0;
},
set(value) {
var buffer = this.buffer, offset = index << 2;
buffer[offset] = value & 255;
buffer[offset + 1] = (value >> 8) & 255;
buffer[offset + 2] = (value >> 16) & 255;
buffer[offset + 3] = (value >>> 24) & 255;
},
};
}
function ensureUint32ArrayViewProps(length) {
while (uint32ArrayViewSetters < length) {
Object.defineProperty(Uint32ArrayView.prototype,
uint32ArrayViewSetters,
createUint32ArrayProp(uint32ArrayViewSetters));
uint32ArrayViewSetters++;
}
}
function TypedArray(arg1) {
var result, i, n;
if (typeof arg1 === 'number') {
result = [];
for (i = 0; i < arg1; ++i) {
result[i] = 0;
}
} else if ('slice' in arg1) {
result = arg1.slice(0);
} else {
result = [];
for (i = 0, n = arg1.length; i < n; ++i) {
result[i] = arg1[i];
}
}
result.subarray = subarray;
result.buffer = result;
result.byteLength = result.length;
result.set = setArrayOffset;
if (typeof arg1 === 'object' && arg1.buffer) {
result.buffer = arg1.buffer;
}
return result;
}
globalScope.Uint8Array = TypedArray;
globalScope.Int8Array = TypedArray;
// we don't need support for set, byteLength for 32-bit array
// so we can use the TypedArray as well
globalScope.Int32Array = TypedArray;
globalScope.Uint16Array = TypedArray;
globalScope.Float32Array = TypedArray;
globalScope.Float64Array = TypedArray;
globalScope.Uint32Array = function () {
if (arguments.length === 3) {
// Building view for buffer, offset, and length
if (arguments[1] !== 0) {
throw new Error('offset !== 0 is not supported');
}
return new Uint32ArrayView(arguments[0], arguments[2]);
}
return TypedArray.apply(this, arguments);
};
})();
// window.CanvasPixelArray.buffer/.byteLength
// Support: IE9
(function canvasPixelArrayBuffer() {
if (!hasDOM || !window.CanvasPixelArray) {
return;
}
var cpaProto = window.CanvasPixelArray.prototype;
if ('buffer' in cpaProto) {
return;
}
// Trying to fake CanvasPixelArray as Uint8ClampedArray.
Object.defineProperty(cpaProto, 'buffer', {
get() {
return this;
},
enumerable: false,
configurable: true,
});
Object.defineProperty(cpaProto, 'byteLength', {
get() {
return this.length;
},
enumerable: false,
configurable: true,
});
})();
// URL = URL || webkitURL
// Support: Safari<7, Android 4.2+
(function normalizeURLObject() {
if (!globalScope.URL) {
globalScope.URL = globalScope.webkitURL;
}
})();
// Object.defineProperty()?
// Support: Android<4.0, Safari<5.1
(function checkObjectDefinePropertyCompatibility() {
if (typeof Object.defineProperty !== 'undefined') {
var definePropertyPossible = true;
try {
if (hasDOM) {
// some browsers (e.g. safari) cannot use defineProperty() on DOM
// objects and thus the native version is not sufficient
Object.defineProperty(new Image(), 'id', { value: 'test', });
}
// ... another test for android gb browser for non-DOM objects
var Test = function Test() {};
Test.prototype = { get id() { }, };
Object.defineProperty(new Test(), 'id',
{ value: '', configurable: true, enumerable: true, writable: false, });
} catch (e) {
definePropertyPossible = false;
}
if (definePropertyPossible) {
return;
}
}
Object.defineProperty = function objectDefineProperty(obj, name, def) {
delete obj[name];
if ('get' in def) {
obj.__defineGetter__(name, def['get']);
}
if ('set' in def) {
obj.__defineSetter__(name, def['set']);
}
if ('value' in def) {
obj.__defineSetter__(name, function objectDefinePropertySetter(value) {
this.__defineGetter__(name, function objectDefinePropertyGetter() {
return value;
});
return value;
});
obj[name] = def.value;
}
};
})();
// No XMLHttpRequest#response?
// Support: IE<11, Android <4.0
(function checkXMLHttpRequestResponseCompatibility() {
if (typeof XMLHttpRequest === 'undefined') {
return;
}
var xhrPrototype = XMLHttpRequest.prototype;
var xhr = new XMLHttpRequest();
if (!('overrideMimeType' in xhr)) {
// IE10 might have response, but not overrideMimeType
// Support: IE10
Object.defineProperty(xhrPrototype, 'overrideMimeType', {
value: function xmlHttpRequestOverrideMimeType(mimeType) {},
});
}
if ('responseType' in xhr) {
return;
}
Object.defineProperty(xhrPrototype, 'responseType', {
get: function xmlHttpRequestGetResponseType() {
return this._responseType || 'text';
},
set: function xmlHttpRequestSetResponseType(value) {
if (value === 'text' || value === 'arraybuffer') {
this._responseType = value;
if (value === 'arraybuffer' &&
typeof this.overrideMimeType === 'function') {
this.overrideMimeType('text/plain; charset=x-user-defined');
}
}
},
});
// Support: IE9
if (typeof VBArray !== 'undefined') {
Object.defineProperty(xhrPrototype, 'response', {
get: function xmlHttpRequestResponseGet() {
if (this.responseType === 'arraybuffer') {
return new Uint8Array(new VBArray(this.responseBody).toArray());
}
return this.responseText;
},
});
return;
}
Object.defineProperty(xhrPrototype, 'response', {
get: function xmlHttpRequestResponseGet() {
if (this.responseType !== 'arraybuffer') {
return this.responseText;
}
var text = this.responseText;
var i, n = text.length;
var result = new Uint8Array(n);
for (i = 0; i < n; ++i) {
result[i] = text.charCodeAt(i) & 0xFF;
}
return result.buffer;
},
});
})();
// window.btoa (base64 encode function) ?
// Support: IE<10
(function checkWindowBtoaCompatibility() {
if ('btoa' in globalScope) {
return;
}
var digits =
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
globalScope.btoa = function (chars) {
var buffer = '';
var i, n;
for (i = 0, n = chars.length; i < n; i += 3) {
var b1 = chars.charCodeAt(i) & 0xFF;
var b2 = chars.charCodeAt(i + 1) & 0xFF;
var b3 = chars.charCodeAt(i + 2) & 0xFF;
var d1 = b1 >> 2, d2 = ((b1 & 3) << 4) | (b2 >> 4);
var d3 = i + 1 < n ? ((b2 & 0xF) << 2) | (b3 >> 6) : 64;
var d4 = i + 2 < n ? (b3 & 0x3F) : 64;
buffer += (digits.charAt(d1) + digits.charAt(d2) +
digits.charAt(d3) + digits.charAt(d4));
}
return buffer;
};
})();
// window.atob (base64 encode function)?
// Support: IE<10
(function checkWindowAtobCompatibility() {
if ('atob' in globalScope) {
return;
}
// https://github.com/davidchambers/Base64.js
var digits =
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
globalScope.atob = function (input) {
input = input.replace(/=+$/, '');
if (input.length % 4 === 1) {
throw new Error('bad atob input');
}
for (
// initialize result and counters
var bc = 0, bs, buffer, idx = 0, output = '';
// get next character
(buffer = input.charAt(idx++));
// character found in table?
// initialize bit storage and add its ascii value
~buffer && (bs = bc % 4 ? bs * 64 + buffer : buffer,
// and if not first of each 4 characters,
// convert the first 8 bits to one ascii character
bc++ % 4) ? output += String.fromCharCode(255 & bs >> (-2 * bc & 6)) : 0
) {
// try to find character in table (0-63, not found => -1)
buffer = digits.indexOf(buffer);
}
return output;
};
})();
// Function.prototype.bind?
// Support: Android<4.0, iOS<6.0
(function checkFunctionPrototypeBindCompatibility() {
if (typeof Function.prototype.bind !== 'undefined') {
return;
}
Function.prototype.bind = function functionPrototypeBind(obj) {
var fn = this, headArgs = Array.prototype.slice.call(arguments, 1);
var bound = function functionPrototypeBindBound() {
var args = headArgs.concat(Array.prototype.slice.call(arguments));
return fn.apply(obj, args);
};
return bound;
};
})();
// HTMLElement dataset property
// Support: IE<11, Safari<5.1, Android<4.0
(function checkDatasetProperty() {
if (!hasDOM) {
return;
}
var div = document.createElement('div');
if ('dataset' in div) {
return; // dataset property exists
}
Object.defineProperty(HTMLElement.prototype, 'dataset', {
get() {
if (this._dataset) {
return this._dataset;
}
var dataset = {};
for (var j = 0, jj = this.attributes.length; j < jj; j++) {
var attribute = this.attributes[j];
if (attribute.name.substring(0, 5) !== 'data-') {
continue;
}
var key = attribute.name.substring(5).replace(/\-([a-z])/g,
function(all, ch) {
return ch.toUpperCase();
});
dataset[key] = attribute.value;
}
Object.defineProperty(this, '_dataset', {
value: dataset,
writable: false,
enumerable: false,
});
return dataset;
},
enumerable: true,
});
})();
// HTMLElement classList property
// Support: IE<10, Android<4.0, iOS<5.0
(function checkClassListProperty() {
function changeList(element, itemName, add, remove) {
var s = element.className || '';
var list = s.split(/\s+/g);
if (list[0] === '') {
list.shift();
}
var index = list.indexOf(itemName);
if (index < 0 && add) {
list.push(itemName);
}
if (index >= 0 && remove) {
list.splice(index, 1);
}
element.className = list.join(' ');
return (index >= 0);
}
if (!hasDOM) {
return;
}
var div = document.createElement('div');
if ('classList' in div) {
return; // classList property exists
}
var classListPrototype = {
add(name) {
changeList(this.element, name, true, false);
},
contains(name) {
return changeList(this.element, name, false, false);
},
remove(name) {
changeList(this.element, name, false, true);
},
toggle(name) {
changeList(this.element, name, true, true);
},
};
Object.defineProperty(HTMLElement.prototype, 'classList', {
get() {
if (this._classList) {
return this._classList;
}
var classList = Object.create(classListPrototype, {
element: {
value: this,
writable: false,
enumerable: true,
},
});
Object.defineProperty(this, '_classList', {
value: classList,
writable: false,
enumerable: false,
});
return classList;
},
enumerable: true,
});
})();
// Checking if worker has console support. Forwarding all messages to the main
// thread if console object is absent.
(function checkWorkerConsoleCompatibility() {
if (typeof importScripts === 'undefined' || 'console' in globalScope) {
return;
}
var consoleTimer = {};
var workerConsole = {
log: function log() {
var args = Array.prototype.slice.call(arguments);
globalScope.postMessage({
targetName: 'main',
action: 'console_log',
data: args,
});
},
error: function error() {
var args = Array.prototype.slice.call(arguments);
globalScope.postMessage({
targetName: 'main',
action: 'console_error',
data: args,
});
},
time: function time(name) {
consoleTimer[name] = Date.now();
},
timeEnd: function timeEnd(name) {
var time = consoleTimer[name];
if (!time) {
throw new Error('Unknown timer name ' + name);
}
this.log('Timer:', name, Date.now() - time);
},
};
globalScope.console = workerConsole;
})();
// Check console compatibility
// In older IE versions the console object is not available
// unless console is open.
// Support: IE<10
(function checkConsoleCompatibility() {
if (!hasDOM) {
return;
}
if (!('console' in window)) {
window.console = {
log() {},
error() {},
warn() {},
};
return;
}
if (!('bind' in console.log)) {
// native functions in IE9 might not have bind
console.log = (function(fn) {
return function(msg) {
return fn(msg);
};
})(console.log);
console.error = (function(fn) {
return function(msg) {
return fn(msg);
};
})(console.error);
console.warn = (function(fn) {
return function(msg) {
return fn(msg);
};
})(console.warn);
return;
}
})();
// Check onclick compatibility in Opera
// Support: Opera<15
(function checkOnClickCompatibility() {
// workaround for reported Opera bug DSK-354448:
// onclick fires on disabled buttons with opaque content
function ignoreIfTargetDisabled(event) {
if (isDisabled(event.target)) {
event.stopPropagation();
}
}
function isDisabled(node) {
return node.disabled || (node.parentNode && isDisabled(node.parentNode));
}
if (isOpera) {
// use browser detection since we cannot feature-check this bug
document.addEventListener('click', ignoreIfTargetDisabled, true);
}
})();
// Checks if possible to use URL.createObjectURL()
// Support: IE, Chrome on iOS
(function checkOnBlobSupport() {
// sometimes IE and Chrome on iOS loosing the data created with
// createObjectURL(), see #3977 and #8081
if (isIE || isIOSChrome) {
PDFJS.disableCreateObjectURL = true;
}
})();
// Checks if navigator.language is supported
(function checkNavigatorLanguage() {
if (typeof navigator === 'undefined') {
return;
}
if ('language' in navigator) {
return;
}
PDFJS.locale = navigator.userLanguage || 'en-US';
})();
// Support: Safari 6.0+, Android<3.0, Chrome 39/40, iOS
(function checkRangeRequests() {
// Safari has issues with cached range requests see:
// https://github.com/mozilla/pdf.js/issues/3260
// Last tested with version 6.0.4.
// Older versions of Android (pre 3.0) has issues with range requests, see:
// https://github.com/mozilla/pdf.js/issues/3381.
// Make sure that we only match webkit-based Android browsers,
// since Firefox/Fennec works as expected.
// Range requests are broken in Chrome 39 and 40, https://crbug.com/442318
if (isSafari || isAndroidPre3 || isChromeWithRangeBug || isIOS) {
PDFJS.disableRange = true;
PDFJS.disableStream = true;
}
})();
// Check if the browser supports manipulation of the history.
// Support: IE<10, Android<4.2
(function checkHistoryManipulation() {
if (!hasDOM) {
return;
}
// Android 2.x has so buggy pushState support that it was removed in
// Android 3.0 and restored as late as in Android 4.2.
// Support: Android 2.x
if (!history.pushState || isAndroidPre3) {
PDFJS.disableHistory = true;
}
})();
// Support: IE<11, Chrome<21, Android<4.4, Safari<6
(function checkSetPresenceInImageData() {
if (!hasDOM) {
return;
}
// IE < 11 will use window.CanvasPixelArray which lacks set function.
if (window.CanvasPixelArray) {
if (typeof window.CanvasPixelArray.prototype.set !== 'function') {
window.CanvasPixelArray.prototype.set = function(arr) {
for (var i = 0, ii = this.length; i < ii; i++) {
this[i] = arr[i];
}
};
}
} else {
// Old Chrome and Android use an inaccessible CanvasPixelArray prototype.
// Because we cannot feature detect it, we rely on user agent parsing.
var polyfill = false, versionMatch;
if (isChrome) {
versionMatch = userAgent.match(/Chrom(e|ium)\/([0-9]+)\./);
// Chrome < 21 lacks the set function.
polyfill = versionMatch && parseInt(versionMatch[2]) < 21;
} else if (isAndroid) {
// Android < 4.4 lacks the set function.
// Android >= 4.4 will contain Chrome in the user agent,
// thus pass the Chrome check above and not reach this block.
polyfill = isAndroidPre5;
} else if (isSafari) {
versionMatch = userAgent.
match(/Version\/([0-9]+)\.([0-9]+)\.([0-9]+) Safari\//);
// Safari < 6 lacks the set function.
polyfill = versionMatch && parseInt(versionMatch[1]) < 6;
}
if (polyfill) {
var contextPrototype = window.CanvasRenderingContext2D.prototype;
var createImageData = contextPrototype.createImageData;
contextPrototype.createImageData = function(w, h) {
var imageData = createImageData.call(this, w, h);
imageData.data.set = function(arr) {
for (var i = 0, ii = this.length; i < ii; i++) {
this[i] = arr[i];
}
};
return imageData;
};
// this closure will be kept referenced, so clear its vars
contextPrototype = null;
}
}
})();
// Support: IE<10, Android<4.0, iOS
(function checkRequestAnimationFrame() {
function installFakeAnimationFrameFunctions() {
window.requestAnimationFrame = function (callback) {
return window.setTimeout(callback, 20);
};
window.cancelAnimationFrame = function (timeoutID) {
window.clearTimeout(timeoutID);
};
}
if (!hasDOM) {
return;
}
if (isIOS) {
// requestAnimationFrame on iOS is broken, replacing with fake one.
installFakeAnimationFrameFunctions();
return;
}
if ('requestAnimationFrame' in window) {
return;
}
window.requestAnimationFrame = window.mozRequestAnimationFrame ||
window.webkitRequestAnimationFrame;
if (window.requestAnimationFrame) {
return;
}
installFakeAnimationFrameFunctions();
})();
// Support: Android, iOS
(function checkCanvasSizeLimitation() {
if (isIOS || isAndroid) {
// 5MP
PDFJS.maxCanvasPixels = 5242880;
}
})();
// Disable fullscreen support for certain problematic configurations.
// Support: IE11+ (when embedded).
(function checkFullscreenSupport() {
if (!hasDOM) {
return;
}
if (isIE && window.parent !== window) {
PDFJS.disableFullscreen = true;
}
})();
// Provides document.currentScript support
// Support: IE, Chrome<29.
(function checkCurrentScript() {
if (!hasDOM) {
return;
}
if ('currentScript' in document) {
return;
}
Object.defineProperty(document, 'currentScript', {
get() {
var scripts = document.getElementsByTagName('script');
return scripts[scripts.length - 1];
},
enumerable: true,
configurable: true,
});
})();
// Provides `input.type = 'type'` runtime failure protection.
// Support: IE9,10.
(function checkInputTypeNumberAssign() {
if (!hasDOM) {
return;
}
var el = document.createElement('input');
try {
el.type = 'number';
} catch (ex) {
var inputProto = el.constructor.prototype;
var typeProperty = Object.getOwnPropertyDescriptor(inputProto, 'type');
Object.defineProperty(inputProto, 'type', {
get() {
return typeProperty.get.call(this);
},
set(value) {
typeProperty.set.call(this, value === 'number' ? 'text' : value);
},
enumerable: true,
configurable: true,
});
}
})();
// Provides correct document.readyState value for legacy browsers.
// Support: IE9,10.
(function checkDocumentReadyState() {
if (!hasDOM) {
return;
}
if (!document.attachEvent) {
return;
}
var documentProto = document.constructor.prototype;
var readyStateProto = Object.getOwnPropertyDescriptor(documentProto,
'readyState');
Object.defineProperty(documentProto, 'readyState', {
get() {
var value = readyStateProto.get.call(this);
return value === 'interactive' ? 'loading' : value;
},
set(value) {
readyStateProto.set.call(this, value);
},
enumerable: true,
configurable: true,
});
})();
// Provides support for ChildNode.remove in legacy browsers.
// Support: IE.
(function checkChildNodeRemove() {
if (!hasDOM) {
return;
}
if (typeof Element.prototype.remove !== 'undefined') {
return;
}
Element.prototype.remove = function () {
if (this.parentNode) {
this.parentNode.removeChild(this);
}
};
})();
/**
* Polyfill for Promises:
* The following promise implementation tries to generally implement the
* Promise/A+ spec. Some notable differences from other promise libraries are:
* - There currently isn't a separate deferred and promise object.
* - Unhandled rejections eventually show an error if they aren't handled.
*
* Based off of the work in:
* https://bugzilla.mozilla.org/show_bug.cgi?id=810490
*/
(function checkPromise() {
if (globalScope.Promise) {
// Promises existing in the DOM/Worker, checking presence of all/resolve
if (typeof globalScope.Promise.all !== 'function') {
globalScope.Promise.all = function (iterable) {
var count = 0, results = [], resolve, reject;
var promise = new globalScope.Promise(function (resolve_, reject_) {
resolve = resolve_;
reject = reject_;
});
iterable.forEach(function (p, i) {
count++;
p.then(function (result) {
results[i] = result;
count--;
if (count === 0) {
resolve(results);
}
}, reject);
});
if (count === 0) {
resolve(results);
}
return promise;
};
}
if (typeof globalScope.Promise.resolve !== 'function') {
globalScope.Promise.resolve = function (value) {
return new globalScope.Promise(function (resolve) {
resolve(value);
});
};
}
if (typeof globalScope.Promise.reject !== 'function') {
globalScope.Promise.reject = function (reason) {
return new globalScope.Promise(function (resolve, reject) {
reject(reason);
});
};
}
if (typeof globalScope.Promise.prototype.catch !== 'function') {
globalScope.Promise.prototype.catch = function (onReject) {
return globalScope.Promise.prototype.then(undefined, onReject);
};
}
return;
}
var STATUS_PENDING = 0;
var STATUS_RESOLVED = 1;
var STATUS_REJECTED = 2;
// In an attempt to avoid silent exceptions, unhandled rejections are
// tracked and if they aren't handled in a certain amount of time an
// error is logged.
var REJECTION_TIMEOUT = 500;
var HandlerManager = {
handlers: [],
running: false,
unhandledRejections: [],
pendingRejectionCheck: false,
scheduleHandlers: function scheduleHandlers(promise) {
if (promise._status === STATUS_PENDING) {
return;
}
this.handlers = this.handlers.concat(promise._handlers);
promise._handlers = [];
if (this.running) {
return;
}
this.running = true;
setTimeout(this.runHandlers.bind(this), 0);
},
runHandlers: function runHandlers() {
var RUN_TIMEOUT = 1; // ms
var timeoutAt = Date.now() + RUN_TIMEOUT;
while (this.handlers.length > 0) {
var handler = this.handlers.shift();
var nextStatus = handler.thisPromise._status;
var nextValue = handler.thisPromise._value;
try {
if (nextStatus === STATUS_RESOLVED) {
if (typeof handler.onResolve === 'function') {
nextValue = handler.onResolve(nextValue);
}
} else if (typeof handler.onReject === 'function') {
nextValue = handler.onReject(nextValue);
nextStatus = STATUS_RESOLVED;
if (handler.thisPromise._unhandledRejection) {
this.removeUnhandeledRejection(handler.thisPromise);
}
}
} catch (ex) {
nextStatus = STATUS_REJECTED;
nextValue = ex;
}
handler.nextPromise._updateStatus(nextStatus, nextValue);
if (Date.now() >= timeoutAt) {
break;
}
}
if (this.handlers.length > 0) {
setTimeout(this.runHandlers.bind(this), 0);
return;
}
this.running = false;
},
addUnhandledRejection: function addUnhandledRejection(promise) {
this.unhandledRejections.push({
promise,
time: Date.now(),
});
this.scheduleRejectionCheck();
},
removeUnhandeledRejection: function removeUnhandeledRejection(promise) {
promise._unhandledRejection = false;
for (var i = 0; i < this.unhandledRejections.length; i++) {
if (this.unhandledRejections[i].promise === promise) {
this.unhandledRejections.splice(i);
i--;
}
}
},
scheduleRejectionCheck: function scheduleRejectionCheck() {
if (this.pendingRejectionCheck) {
return;
}
this.pendingRejectionCheck = true;
setTimeout(() => {
this.pendingRejectionCheck = false;
var now = Date.now();
for (var i = 0; i < this.unhandledRejections.length; i++) {
if (now - this.unhandledRejections[i].time > REJECTION_TIMEOUT) {
var unhandled = this.unhandledRejections[i].promise._value;
var msg = 'Unhandled rejection: ' + unhandled;
if (unhandled.stack) {
msg += '\n' + unhandled.stack;
}
// Raising and catching the error, so debugger can break on it.
try {
throw new Error(msg);
} catch (_) {
console.warn(msg);
}
this.unhandledRejections.splice(i);
i--;
}
}
if (this.unhandledRejections.length) {
this.scheduleRejectionCheck();
}
}, REJECTION_TIMEOUT);
},
};
var Promise = function Promise(resolver) {
this._status = STATUS_PENDING;
this._handlers = [];
try {
resolver.call(this, this._resolve.bind(this), this._reject.bind(this));
} catch (e) {
this._reject(e);
}
};
/**
* Builds a promise that is resolved when all the passed in promises are
* resolved.
* @param {array} promises array of data and/or promises to wait for.
* @return {Promise} New dependent promise.
*/
Promise.all = function Promise_all(promises) {
var resolveAll, rejectAll;
var deferred = new Promise(function (resolve, reject) {
resolveAll = resolve;
rejectAll = reject;
});
var unresolved = promises.length;
var results = [];
if (unresolved === 0) {
resolveAll(results);
return deferred;
}
function reject(reason) {
if (deferred._status === STATUS_REJECTED) {
return;
}
results = [];
rejectAll(reason);
}
for (var i = 0, ii = promises.length; i < ii; ++i) {
var promise = promises[i];
var resolve = (function(i) {
return function(value) {
if (deferred._status === STATUS_REJECTED) {
return;
}
results[i] = value;
unresolved--;
if (unresolved === 0) {
resolveAll(results);
}
};
})(i);
if (Promise.isPromise(promise)) {
promise.then(resolve, reject);
} else {
resolve(promise);
}
}
return deferred;
};
/**
* Checks if the value is likely a promise (has a 'then' function).
* @return {boolean} true if value is thenable
*/
Promise.isPromise = function Promise_isPromise(value) {
return value && typeof value.then === 'function';
};
/**
* Creates resolved promise
* @param value resolve value
* @returns {Promise}
*/
Promise.resolve = function Promise_resolve(value) {
return new Promise(function (resolve) {
resolve(value);
});
};
/**
* Creates rejected promise
* @param reason rejection value
* @returns {Promise}
*/
Promise.reject = function Promise_reject(reason) {
return new Promise(function (resolve, reject) {
reject(reason);
});
};
Promise.prototype = {
_status: null,
_value: null,
_handlers: null,
_unhandledRejection: null,
_updateStatus: function Promise__updateStatus(status, value) {
if (this._status === STATUS_RESOLVED ||
this._status === STATUS_REJECTED) {
return;
}
if (status === STATUS_RESOLVED &&
Promise.isPromise(value)) {
value.then(this._updateStatus.bind(this, STATUS_RESOLVED),
this._updateStatus.bind(this, STATUS_REJECTED));
return;
}
this._status = status;
this._value = value;
if (status === STATUS_REJECTED && this._handlers.length === 0) {
this._unhandledRejection = true;
HandlerManager.addUnhandledRejection(this);
}
HandlerManager.scheduleHandlers(this);
},
_resolve: function Promise_resolve(value) {
this._updateStatus(STATUS_RESOLVED, value);
},
_reject: function Promise_reject(reason) {
this._updateStatus(STATUS_REJECTED, reason);
},
then: function Promise_then(onResolve, onReject) {
var nextPromise = new Promise(function (resolve, reject) {
this.resolve = resolve;
this.reject = reject;
});
this._handlers.push({
thisPromise: this,
onResolve,
onReject,
nextPromise,
});
HandlerManager.scheduleHandlers(this);
return nextPromise;
},
catch: function Promise_catch(onReject) {
return this.then(undefined, onReject);
},
};
globalScope.Promise = Promise;
})();
(function checkWeakMap() {
if (globalScope.WeakMap) {
return;
}
var id = 0;
function WeakMap() {
this.id = '$weakmap' + (id++);
}
WeakMap.prototype = {
has(obj) {
return !!Object.getOwnPropertyDescriptor(obj, this.id);
},
get(obj, defaultValue) {
return this.has(obj) ? obj[this.id] : defaultValue;
},
set(obj, value) {
Object.defineProperty(obj, this.id, {
value,
enumerable: false,
configurable: true,
});
},
delete(obj) {
delete obj[this.id];
},
};
globalScope.WeakMap = WeakMap;
})();
// Polyfill from https://github.com/Polymer/URL
/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/ */
(function checkURLConstructor() {
// feature detect for URL constructor
var hasWorkingUrl = false;
try {
if (typeof URL === 'function' &&
typeof URL.prototype === 'object' &&
('origin' in URL.prototype)) {
var u = new URL('b', 'http://a');
u.pathname = 'c%20d';
hasWorkingUrl = u.href === 'http://a/c%20d';
}
} catch (e) { }
if (hasWorkingUrl) {
return;
}
var relative = Object.create(null);
relative['ftp'] = 21;
relative['file'] = 0;
relative['gopher'] = 70;
relative['http'] = 80;
relative['https'] = 443;
relative['ws'] = 80;
relative['wss'] = 443;
var relativePathDotMapping = Object.create(null);
relativePathDotMapping['%2e'] = '.';
relativePathDotMapping['.%2e'] = '..';
relativePathDotMapping['%2e.'] = '..';
relativePathDotMapping['%2e%2e'] = '..';
function isRelativeScheme(scheme) {
return relative[scheme] !== undefined;
}
function invalid() {
clear.call(this);
this._isInvalid = true;
}
function IDNAToASCII(h) {
if (h === '') {
invalid.call(this);
}
// XXX
return h.toLowerCase();
}
function percentEscape(c) {
var unicode = c.charCodeAt(0);
if (unicode > 0x20 &&
unicode < 0x7F &&
// " # < > ? `
[0x22, 0x23, 0x3C, 0x3E, 0x3F, 0x60].indexOf(unicode) === -1
) {
return c;
}
return encodeURIComponent(c);
}
function percentEscapeQuery(c) {
// XXX This actually needs to encode c using encoding and then
// convert the bytes one-by-one.
var unicode = c.charCodeAt(0);
if (unicode > 0x20 &&
unicode < 0x7F &&
// " # < > ` (do not escape '?')
[0x22, 0x23, 0x3C, 0x3E, 0x60].indexOf(unicode) === -1
) {
return c;
}
return encodeURIComponent(c);
}
var EOF, ALPHA = /[a-zA-Z]/,
ALPHANUMERIC = /[a-zA-Z0-9\+\-\.]/;
function parse(input, stateOverride, base) {
function err(message) {
errors.push(message);
}
var state = stateOverride || 'scheme start',
cursor = 0,
buffer = '',
seenAt = false,
seenBracket = false,
errors = [];
loop: while ((input[cursor - 1] !== EOF || cursor === 0) &&
!this._isInvalid) {
var c = input[cursor];
switch (state) {
case 'scheme start':
if (c && ALPHA.test(c)) {
buffer += c.toLowerCase(); // ASCII-safe
state = 'scheme';
} else if (!stateOverride) {
buffer = '';
state = 'no scheme';
continue;
} else {
err('Invalid scheme.');
break loop;
}
break;
case 'scheme':
if (c && ALPHANUMERIC.test(c)) {
buffer += c.toLowerCase(); // ASCII-safe
} else if (c === ':') {
this._scheme = buffer;
buffer = '';
if (stateOverride) {
break loop;
}
if (isRelativeScheme(this._scheme)) {
this._isRelative = true;
}
if (this._scheme === 'file') {
state = 'relative';
} else if (this._isRelative && base &&
base._scheme === this._scheme) {
state = 'relative or authority';
} else if (this._isRelative) {
state = 'authority first slash';
} else {
state = 'scheme data';
}
} else if (!stateOverride) {
buffer = '';
cursor = 0;
state = 'no scheme';
continue;
} else if (c === EOF) {
break loop;
} else {
err('Code point not allowed in scheme: ' + c);
break loop;
}
break;
case 'scheme data':
if (c === '?') {
this._query = '?';
state = 'query';
} else if (c === '#') {
this._fragment = '#';
state = 'fragment';
} else {
// XXX error handling
if (c !== EOF && c !== '\t' && c !== '\n' && c !== '\r') {
this._schemeData += percentEscape(c);
}
}
break;
case 'no scheme':
if (!base || !(isRelativeScheme(base._scheme))) {
err('Missing scheme.');
invalid.call(this);
} else {
state = 'relative';
continue;
}
break;
case 'relative or authority':
if (c === '/' && input[cursor + 1] === '/') {
state = 'authority ignore slashes';
} else {
err('Expected /, got: ' + c);
state = 'relative';
continue;
}
break;
case 'relative':
this._isRelative = true;
if (this._scheme !== 'file') {
this._scheme = base._scheme;
}
if (c === EOF) {
this._host = base._host;
this._port = base._port;
this._path = base._path.slice();
this._query = base._query;
this._username = base._username;
this._password = base._password;
break loop;
} else if (c === '/' || c === '\\') {
if (c === '\\') {
err('\\ is an invalid code point.');
}
state = 'relative slash';
} else if (c === '?') {
this._host = base._host;
this._port = base._port;
this._path = base._path.slice();
this._query = '?';
this._username = base._username;
this._password = base._password;
state = 'query';
} else if (c === '#') {
this._host = base._host;
this._port = base._port;
this._path = base._path.slice();
this._query = base._query;
this._fragment = '#';
this._username = base._username;
this._password = base._password;
state = 'fragment';
} else {
var nextC = input[cursor + 1];
var nextNextC = input[cursor + 2];
if (this._scheme !== 'file' || !ALPHA.test(c) ||
(nextC !== ':' && nextC !== '|') ||
(nextNextC !== EOF && nextNextC !== '/' && nextNextC !== '\\' &&
nextNextC !== '?' && nextNextC !== '#')) {
this._host = base._host;
this._port = base._port;
this._username = base._username;
this._password = base._password;
this._path = base._path.slice();
this._path.pop();
}
state = 'relative path';
continue;
}
break;
case 'relative slash':
if (c === '/' || c === '\\') {
if (c === '\\') {
err('\\ is an invalid code point.');
}
if (this._scheme === 'file') {
state = 'file host';
} else {
state = 'authority ignore slashes';
}
} else {
if (this._scheme !== 'file') {
this._host = base._host;
this._port = base._port;
this._username = base._username;
this._password = base._password;
}
state = 'relative path';
continue;
}
break;
case 'authority first slash':
if (c === '/') {
state = 'authority second slash';
} else {
err('Expected \'/\', got: ' + c);
state = 'authority ignore slashes';
continue;
}
break;
case 'authority second slash':
state = 'authority ignore slashes';
if (c !== '/') {
err('Expected \'/\', got: ' + c);
continue;
}
break;
case 'authority ignore slashes':
if (c !== '/' && c !== '\\') {
state = 'authority';
continue;
} else {
err('Expected authority, got: ' + c);
}
break;
case 'authority':
if (c === '@') {
if (seenAt) {
err('@ already seen.');
buffer += '%40';
}
seenAt = true;
for (var i = 0; i < buffer.length; i++) {
var cp = buffer[i];
if (cp === '\t' || cp === '\n' || cp === '\r') {
err('Invalid whitespace in authority.');
continue;
}
// XXX check URL code points
if (cp === ':' && this._password === null) {
this._password = '';
continue;
}
var tempC = percentEscape(cp);
if (this._password !== null) {
this._password += tempC;
} else {
this._username += tempC;
}
}
buffer = '';
} else if (c === EOF || c === '/' || c === '\\' ||
c === '?' || c === '#') {
cursor -= buffer.length;
buffer = '';
state = 'host';
continue;
} else {
buffer += c;
}
break;
case 'file host':
if (c === EOF || c === '/' || c === '\\' || c === '?' || c === '#') {
if (buffer.length === 2 && ALPHA.test(buffer[0]) &&
(buffer[1] === ':' || buffer[1] === '|')) {
state = 'relative path';
} else if (buffer.length === 0) {
state = 'relative path start';
} else {
this._host = IDNAToASCII.call(this, buffer);
buffer = '';
state = 'relative path start';
}
continue;
} else if (c === '\t' || c === '\n' || c === '\r') {
err('Invalid whitespace in file host.');
} else {
buffer += c;
}
break;
case 'host':
case 'hostname':
if (c === ':' && !seenBracket) {
// XXX host parsing
this._host = IDNAToASCII.call(this, buffer);
buffer = '';
state = 'port';
if (stateOverride === 'hostname') {
break loop;
}
} else if (c === EOF || c === '/' ||
c === '\\' || c === '?' || c === '#') {
this._host = IDNAToASCII.call(this, buffer);
buffer = '';
state = 'relative path start';
if (stateOverride) {
break loop;
}
continue;
} else if (c !== '\t' && c !== '\n' && c !== '\r') {
if (c === '[') {
seenBracket = true;
} else if (c === ']') {
seenBracket = false;
}
buffer += c;
} else {
err('Invalid code point in host/hostname: ' + c);
}
break;
case 'port':
if (/[0-9]/.test(c)) {
buffer += c;
} else if (c === EOF || c === '/' || c === '\\' ||
c === '?' || c === '#' || stateOverride) {
if (buffer !== '') {
var temp = parseInt(buffer, 10);
if (temp !== relative[this._scheme]) {
this._port = temp + '';
}
buffer = '';
}
if (stateOverride) {
break loop;
}
state = 'relative path start';
continue;
} else if (c === '\t' || c === '\n' || c === '\r') {
err('Invalid code point in port: ' + c);
} else {
invalid.call(this);
}
break;
case 'relative path start':
if (c === '\\') {
err('\'\\\' not allowed in path.');
}
state = 'relative path';
if (c !== '/' && c !== '\\') {
continue;
}
break;
case 'relative path':
if (c === EOF || c === '/' || c === '\\' ||
(!stateOverride && (c === '?' || c === '#'))) {
if (c === '\\') {
err('\\ not allowed in relative path.');
}
var tmp;
if ((tmp = relativePathDotMapping[buffer.toLowerCase()])) {
buffer = tmp;
}
if (buffer === '..') {
this._path.pop();
if (c !== '/' && c !== '\\') {
this._path.push('');
}
} else if (buffer === '.' && c !== '/' && c !== '\\') {
this._path.push('');
} else if (buffer !== '.') {
if (this._scheme === 'file' && this._path.length === 0 &&
buffer.length === 2 && ALPHA.test(buffer[0]) &&
buffer[1] === '|') {
buffer = buffer[0] + ':';
}
this._path.push(buffer);
}
buffer = '';
if (c === '?') {
this._query = '?';
state = 'query';
} else if (c === '#') {
this._fragment = '#';
state = 'fragment';
}
} else if (c !== '\t' && c !== '\n' && c !== '\r') {
buffer += percentEscape(c);
}
break;
case 'query':
if (!stateOverride && c === '#') {
this._fragment = '#';
state = 'fragment';
} else if (c !== EOF && c !== '\t' && c !== '\n' && c !== '\r') {
this._query += percentEscapeQuery(c);
}
break;
case 'fragment':
if (c !== EOF && c !== '\t' && c !== '\n' && c !== '\r') {
this._fragment += c;
}
break;
}
cursor++;
}
}
function clear() {
this._scheme = '';
this._schemeData = '';
this._username = '';
this._password = null;
this._host = '';
this._port = '';
this._path = [];
this._query = '';
this._fragment = '';
this._isInvalid = false;
this._isRelative = false;
}
// Does not process domain names or IP addresses.
// Does not handle encoding for the query parameter.
function JURL(url, base /* , encoding */) {
if (base !== undefined && !(base instanceof JURL)) {
base = new JURL(String(base));
}
this._url = url;
clear.call(this);
var input = url.replace(/^[ \t\r\n\f]+|[ \t\r\n\f]+$/g, '');
// encoding = encoding || 'utf-8'
parse.call(this, input, null, base);
}
JURL.prototype = {
toString() {
return this.href;
},
get href() {
if (this._isInvalid) {
return this._url;
}
var authority = '';
if (this._username !== '' || this._password !== null) {
authority = this._username +
(this._password !== null ? ':' + this._password : '') + '@';
}
return this.protocol +
(this._isRelative ? '//' + authority + this.host : '') +
this.pathname + this._query + this._fragment;
},
set href(href) {
clear.call(this);
parse.call(this, href);
},
get protocol() {
return this._scheme + ':';
},
set protocol(protocol) {
if (this._isInvalid) {
return;
}
parse.call(this, protocol + ':', 'scheme start');
},
get host() {
return this._isInvalid ? '' : this._port ?
this._host + ':' + this._port : this._host;
},
set host(host) {
if (this._isInvalid || !this._isRelative) {
return;
}
parse.call(this, host, 'host');
},
get hostname() {
return this._host;
},
set hostname(hostname) {
if (this._isInvalid || !this._isRelative) {
return;
}
parse.call(this, hostname, 'hostname');
},
get port() {
return this._port;
},
set port(port) {
if (this._isInvalid || !this._isRelative) {
return;
}
parse.call(this, port, 'port');
},
get pathname() {
return this._isInvalid ? '' : this._isRelative ?
'/' + this._path.join('/') : this._schemeData;
},
set pathname(pathname) {
if (this._isInvalid || !this._isRelative) {
return;
}
this._path = [];
parse.call(this, pathname, 'relative path start');
},
get search() {
return this._isInvalid || !this._query || this._query === '?' ?
'' : this._query;
},
set search(search) {
if (this._isInvalid || !this._isRelative) {
return;
}
this._query = '?';
if (search[0] === '?') {
search = search.slice(1);
}
parse.call(this, search, 'query');
},
get hash() {
return this._isInvalid || !this._fragment || this._fragment === '#' ?
'' : this._fragment;
},
set hash(hash) {
if (this._isInvalid) {
return;
}
this._fragment = '#';
if (hash[0] === '#') {
hash = hash.slice(1);
}
parse.call(this, hash, 'fragment');
},
get origin() {
var host;
if (this._isInvalid || !this._scheme) {
return '';
}
// javascript: Gecko returns String(""), WebKit/Blink String("null")
// Gecko throws error for "data://"
// data: Gecko returns "", Blink returns "data://", WebKit returns "null"
// Gecko returns String("") for file: mailto:
// WebKit/Blink returns String("SCHEME://") for file: mailto:
switch (this._scheme) {
case 'data':
case 'file':
case 'javascript':
case 'mailto':
return 'null';
}
host = this.host;
if (!host) {
return '';
}
return this._scheme + '://' + host;
},
};
// Copy over the static methods
var OriginalURL = globalScope.URL;
if (OriginalURL) {
JURL.createObjectURL = function(blob) {
// IE extension allows a second optional options argument.
// http://msdn.microsoft.com/en-us/library/ie/hh772302(v=vs.85).aspx
return OriginalURL.createObjectURL.apply(OriginalURL, arguments);
};
JURL.revokeObjectURL = function(url) {
OriginalURL.revokeObjectURL(url);
};
}
globalScope.URL = JURL;
})();
}