/**
* polyfill for Function
*/
// from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind
if (!Function.prototype.bind) {
Function.prototype.bind = function (oThis) {
if (typeof this !== 'function') {
throw new TypeError('Function.prototype.bind - what is trying to be bound is not callable');
}
var args = Array.prototype.slice.call(arguments, 1);
var fToBind = this;
var fNOP = function () {};
var fBound = function () {
return fToBind.apply(this instanceof fNOP ? this : oThis, args.concat(Array.prototype.slice.call(arguments)));
};
if (this.prototype) {
fNOP.prototype = this.prototype;
}
fBound.prototype = new fNOP();
return fBound;
};
}
/**
* polyfill for Object
*/
// from https://github.com/es-shims/es5-shim/blob/master/es5-sham.js
(function () {
var prototypeOfObject = Object.prototype;
var call = Function.call;
var owns = call.bind(prototypeOfObject.hasOwnProperty);
var isEnumerable = call.bind(prototypeOfObject.propertyIsEnumerable);
var toStr = call.bind(prototypeOfObject.toString);
var defineGetter;
var defineSetter;
var lookupGetter;
var lookupSetter;
var supportsAccessors = owns(prototypeOfObject, '__defineGetter__');
if (supportsAccessors) {
/* eslint-disable no-underscore-dangle, no-restricted-properties */
defineGetter = call.bind(prototypeOfObject.__defineGetter__);
defineSetter = call.bind(prototypeOfObject.__defineSetter__);
lookupGetter = call.bind(prototypeOfObject.__lookupGetter__);
lookupSetter = call.bind(prototypeOfObject.__lookupSetter__);
/* eslint-enable no-underscore-dangle, no-restricted-properties */
}
var isPrimitive = function isPrimitive(o) {
return o == null || (typeof o !== 'object' && typeof o !== 'function');
};
if (!Object.getPrototypeOf) {
Object.getPrototypeOf = function getPrototypeOf(object) {
var proto = object.__proto__;
if (proto || proto === null) {
return proto;
}
if (toStr(object.constructor) === '[object Function]') {
return object.constructor.prototype;
}
if (object instanceof Object) {
return prototypeOfObject;
}
return null;
};
}
if (!Object.keys) {
Object.keys = (function() {
var hasOwnProperty = Object.prototype.hasOwnProperty;
var hasDontEnumBug = !({ toString: null }).propertyIsEnumerable('toString');
var dontEnums = [
'toString',
'toLocaleString',
'valueOf',
'hasOwnProperty',
'isPrototypeOf',
'propertyIsEnumerable',
'constructor'
];
var dontEnumsLength = dontEnums.length;
return function (obj) {
if (typeof obj !== 'object' && (typeof obj !== 'function' || obj === null)) {
throw new TypeError('Object.keys called on non-object');
}
var result = [], prop, i;
for (prop in obj) {
if (hasOwnProperty.call(obj, prop)) {
result.push(prop);
}
}
if (hasDontEnumBug) {
for (i = 0; i < dontEnumsLength; i++) {
if (hasOwnProperty.call(obj, dontEnums[i])) {
result.push(dontEnums[i]);
}
}
}
return result;
};
}());
}
if (!Object.getOwnPropertyNames) {
Object.getOwnPropertyNames = function getOwnPropertyNames(object) {
if (object !== Object(object)) {
throw TypeError('Object.getOwnPropertyNames called on non-object: ' + object);
}
return Object.keys(object);
};
}
var doesGetOwnPropertyDescriptorWork = function doesGetOwnPropertyDescriptorWork(object) {
try {
object.sentinel = 0;
return Object.getOwnPropertyDescriptor(object, 'sentinel').value === 0;
} catch (err) {
return false;
}
};
var getOwnPropertyDescriptorFallback;
if (Object.defineProperty) {
var getOwnPropertyDescriptorWorksOnObject = doesGetOwnPropertyDescriptorWork({});
var getOwnPropertyDescriptorWorksOnDom = typeof document === 'undefined' ||
doesGetOwnPropertyDescriptorWork(document.createElement('div'));
if (!getOwnPropertyDescriptorWorksOnDom || !getOwnPropertyDescriptorWorksOnObject) {
getOwnPropertyDescriptorFallback = Object.getOwnPropertyDescriptor;
}
}
if (!Object.getOwnPropertyDescriptor || getOwnPropertyDescriptorFallback) {
var ERR_NON_OBJECT = 'Object.getOwnPropertyDescriptor called on a non-object: ';
Object.getOwnPropertyDescriptor = function getOwnPropertyDescriptor(object, property) {
if (isPrimitive(object)) {
throw new TypeError(ERR_NON_OBJECT + object);
}
if (getOwnPropertyDescriptorFallback) {
try {
return getOwnPropertyDescriptorFallback.call(Object, object, property);
} catch (err) {
}
}
var descriptor;
if (!owns(object, property)) {
return descriptor;
}
descriptor = {
enumerable: isEnumerable(object, property),
configurable: true
};
if (supportsAccessors) {
var prototype = object.__proto__;
var notPrototypeOfObject = object !== prototypeOfObject;
if (notPrototypeOfObject) {
object.__proto__ = prototypeOfObject;
}
var getter = lookupGetter(object, property);
var setter = lookupSetter(object, property);
if (notPrototypeOfObject) {
object.__proto__ = prototype;
}
if (getter || setter) {
if (getter) {
descriptor.get = getter;
}
if (setter) {
descriptor.set = setter;
}
return descriptor;
}
}
descriptor.value = object[property];
descriptor.writable = true;
return descriptor;
};
}
var doesDefinePropertyWork = function doesDefinePropertyWork(object) {
try {
Object.defineProperty(object, 'sentinel', {});
return 'sentinel' in object;
} catch (exception) {
return false;
}
};
if (Object.defineProperty) {
var definePropertyWorksOnObject = doesDefinePropertyWork({});
var definePropertyWorksOnDom = typeof document === 'undefined' ||
doesDefinePropertyWork(document.createElement('div'));
if (!definePropertyWorksOnObject || !definePropertyWorksOnDom) {
var definePropertyFallback = Object.defineProperty;
var definePropertiesFallback = Object.defineProperties;
}
}
if (!Object.defineProperty || definePropertyFallback) {
var ERR_NON_OBJECT_DESCRIPTOR = 'Property description must be an object: ';
var ERR_NON_OBJECT_TARGET = 'Object.defineProperty called on non-object: ';
var ERR_ACCESSORS_NOT_SUPPORTED = 'getters & setters can not be defined on this javascript engine';
Object.defineProperty = function defineProperty(object, property, descriptor) {
if (isPrimitive(object)) {
throw new TypeError(ERR_NON_OBJECT_TARGET + object);
}
if (isPrimitive(descriptor)) {
throw new TypeError(ERR_NON_OBJECT_DESCRIPTOR + descriptor);
}
if (definePropertyFallback) {
try {
return definePropertyFallback.call(Object, object, property, descriptor);
} catch (exception) {
}
}
if ('value' in descriptor) {
if (supportsAccessors && (lookupGetter(object, property) || lookupSetter(object, property))) {
var prototype = object.__proto__;
object.__proto__ = prototypeOfObject;
delete object[property];
object[property] = descriptor.value;
object.__proto__ = prototype;
} else {
object[property] = descriptor.value;
}
} else {
var hasGetter = 'get' in descriptor;
var hasSetter = 'set' in descriptor;
if (!supportsAccessors && (hasGetter || hasSetter)) {
return object;
}
// If we got that far then getters and setters can be defined !!
if (hasGetter) {
defineGetter(object, property, descriptor.get);
}
if (hasSetter) {
defineSetter(object, property, descriptor.set);
}
}
return object;
};
}
if (!Object.defineProperties || definePropertiesFallback) {
Object.defineProperties = function defineProperties(object, properties) {
if (definePropertiesFallback) {
try {
return definePropertiesFallback.call(Object, object, properties);
} catch (exception) {
}
}
var keys = Object.keys(properties);
for (var i = 0; i < keys.length; i++) {
var property = keys[i];
if (property !== '__proto__') {
Object.defineProperty(object, property, properties[property]);
}
}
return object;
};
}
if (!Object.create) {
var createEmpty;
var supportsProto = !({ __proto__: null } instanceof Object);
/* global ActiveXObject */
var shouldUseActiveX = function () {
if (!document.domain) {
return false;
}
try {
return !!new ActiveXObject('htmlfile');
} catch (exception) {
return false;
}
};
var getEmptyViaActiveX = function () {
var empty;
var xDoc;
xDoc = new ActiveXObject('htmlfile');
var script = 'script';
xDoc.write('<' + script + '></' + script + '>');
xDoc.close();
empty = xDoc.parentWindow.Object.prototype;
xDoc = null;
return empty;
};
var getEmptyViaIFrame = function () {
var iframe = document.createElement('iframe');
var parent = document.body || document.documentElement;
var empty;
iframe.style.display = 'none';
parent.appendChild(iframe);
// eslint-disable-next-line no-script-url
iframe.src = 'javascript:';
empty = iframe.contentWindow.Object.prototype;
parent.removeChild(iframe);
iframe = null;
return empty;
};
/* global document */
if (supportsProto || typeof document === 'undefined') {
createEmpty = function () {
return { __proto__: null };
};
} else {
createEmpty = function () {
var empty = shouldUseActiveX() ? getEmptyViaActiveX() : getEmptyViaIFrame();
delete empty.constructor;
delete empty.hasOwnProperty;
delete empty.propertyIsEnumerable;
delete empty.isPrototypeOf;
delete empty.toLocaleString;
delete empty.toString;
delete empty.valueOf;
var Empty = function Empty() { };
Empty.prototype = empty;
// short-circuit future calls
createEmpty = function () {
return new Empty();
};
return new Empty();
};
}
Object.create = function create (prototype, properties) {
var object;
var Type = function () { };
if (prototype === null) {
object = createEmpty();
} else {
if (prototype !== null && isPrimitive(prototype)) {
throw new TypeError('Object prototype may only be an Object or null');
}
Type.prototype = prototype;
object = new Type();
object.__proto__ = prototype;
}
if (properties !== void 0) {
Object.defineProperties(object, properties);
}
return object;
};
}
if (!Object.seal) {
Object.seal = function seal(object) {
if (Object(object) !== object) {
throw new TypeError('Object.seal can only be called on Objects.');
}
return object;
};
}
if (!Object.freeze) {
Object.freeze = function freeze(object) {
if (Object(object) !== object) {
throw new TypeError('Object.freeze can only be called on Objects.');
}
return object;
};
}
try {
Object.freeze(function () { });
} catch (exception) {
Object.freeze = (function (freezeObject) {
return function freeze(object) {
if (typeof object === 'function') {
return object;
}
return freezeObject(object);
};
})(Object.freeze);
}
if (!Object.preventExtensions) {
Object.preventExtensions = function preventExtensions(object) {
if (Object(object) !== object) {
throw new TypeError('Object.preventExtensions can only be called on Objects.');
}
return object;
};
}
if (!Object.isSealed) {
Object.isSealed = function isSealed(object) {
if (Object(object) !== object) {
throw new TypeError('Object.isSealed can only be called on Objects.');
}
return false;
};
}
if (!Object.isFrozen) {
Object.isFrozen = function isFrozen(object) {
if (Object(object) !== object) {
throw new TypeError('Object.isFrozen can only be called on Objects.');
}
return false;
};
}
if (!Object.isExtensible) {
Object.isExtensible = function isExtensible(object) {
if (Object(object) !== object) {
throw new TypeError('Object.isExtensible can only be called on Objects.');
}
var name = '';
while (owns(object, name)) {
name += '?';
}
object[name] = true;
var returnValue = owns(object, name);
delete object[name];
return returnValue;
};
}
})();
/**
* polyfill for Array
*/
// from https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray
if (!Array.isArray) {
Array.isArray = function (arg) {
return Object.prototype.toString.call(arg) === '[object Array]';
};
}
// from https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach
if (!Array.prototype.forEach) {
Array.prototype.forEach = function (callback, thisArg) {
var T, k;
if (this === void 0 || this === null) {
throw new TypeError('Array.prototype.forEach called on null or undefined');
}
var O = Object(this);
var len = O.length >>> 0;
if (Object.prototype.toString.call(callback) != '[object Function]') {
throw new TypeError(callback + ' is not a function');
}
if (arguments.length > 1) {
T = thisArg;
}
k = 0;
while (k < len) {
var kValue;
if (k in O) {
kValue = O[k];
callback.call(T, kValue, k, O);
}
k++;
}
};
}
// form https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Array/every
if (!Array.prototype.every) {
Array.prototype.every = function (callback) {
if (this === void 0 || this === null) {
throw new TypeError('Array.prototype.every called on null or undefined');
}
var O = Object(this);
var len = O.length >>> 0;
if (Object.prototype.toString.call(callback) != '[object Function]') {
throw new TypeError(callback + ' is not a function');
}
var ctx = arguments.length >= 2 ? arguments[1] : void 0;
for (var i = 0; i < len; i++) {
if (i in O && !callback.call(ctx, O[i], i, O)) {
return false;
}
}
return true;
};
}
// from https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Array/fill
if (!Array.prototype.fill) {
Array.prototype.fill = function (value) {
if (this === void 0 || this === null) {
throw new TypeError('Array.prototype.fill called on null or undefined');
}
var O = Object(this);
var len = O.length >>> 0;
var start = arguments[1];
var relativeStart = start >> 0;
var k = relativeStart < 0 ?
Math.max(len + relativeStart, 0) :
Math.min(relativeStart, len);
var end = arguments[2];
var relativeEnd = end === undefined ? len : end >> 0;
var final = relativeEnd < 0 ? Math.max(len + relativeEnd, 0) : Math.min(relativeEnd, len);
while (k < final) {
O[k] = value;
k++;
}
return O;
};
}
// from https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Array/filter
if (!Array.prototype.filter) {
Array.prototype.filter = function (callback) {
if (this === void 0 || this === null) {
throw new TypeError('Array.prototype.filter called on null or undefined');
}
var O = Object(this);
var len = O.length >>> 0;
if (Object.prototype.toString.call(callback) != '[object Function]') {
throw new TypeError(callback + ' is not a function');
}
var res = [];
var ctx = arguments.length >= 2 ? arguments[1] : void 0;
for (var i = 0; i < len; i++) {
if (i in O) {
var val = O[i];
if (callback.call(ctx, val, i, O)) {
res.push(val);
}
}
}
return res;
};
}
// from https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf
if (!Array.prototype.indexOf) {
Array.prototype.indexOf = function (searchElement, fromIndex) {
if (this === void 0 || this === null) {
throw new TypeError('Array.prototype.indexOf called on null or undefined');
}
var k;
var O = Object(this);
var len = O.length >>> 0;
if (len === 0) {
return -1;
}
var n = fromIndex | 0;
if (n >= len) {
return -1;
}
k = Math.max(n >= 0 ? n : len - Math.abs(n), 0);
while (k < len) {
if (k in O && O[k] === searchElement) {
return k;
}
k++;
}
return -1;
};
}
// from https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Array/lastIndexOf
if (!Array.prototype.lastIndexOf) {
Array.prototype.lastIndexOf = function(searchElement) {
if (this === void 0 || this === null) {
throw new TypeError('Array.prototype.lastIndexOf called on null or undefined');
}
var n, k;
var t = Object(this);
var len = t.length >>> 0;
if (len === 0) {
return -1;
}
n = len - 1;
if (arguments.length > 1) {
n = Number(arguments[1]);
if (n !== n) {
n = 0;
} else if (n != 0 && n != (1 / 0) && n != -(1 / 0)) {
n = (n > 0 || -1) * Math.floor(Math.abs(n));
}
}
k = n >= 0 ? Math.min(n, len - 1) : len - Math.abs(n);
for (;k >= 0; k--) {
if (k in t && t[k] === searchElement) {
return k;
}
}
return -1;
};
}
// from https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Array/map
if (!Array.prototype.map) {
Array.prototype.map = function (callback, thisArg) {
if (this === void 0 || this === null) {
throw new TypeError('Array.prototype.map called on null or undefined');
}
var T, A, k;
var O = Object(this);
var len = O.length >>> 0;
if (Object.prototype.toString.call(callback) !== '[object Function]') {
throw new TypeError(callback + ' is not a function');
}
if (thisArg) {
T = thisArg;
}
A = new Array(len);
k = 0;
while (k < len) {
var kValue, mappedValue;
if (k in O) {
kValue = O[k];
mappedValue = callback.call(T, kValue, k, O);
A[ k ] = mappedValue;
}
k++;
}
return A;
};
}
// from https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Array/Reduce
if (!Array.prototype.reduce) {
Array.prototype.reduce = function (callback) {
if (this === void 0 || this === null) {
throw new TypeError('Array.prototype.reduce called on null or undefined');
}
if (Object.prototype.toString.call(callback) !== '[object Function]') {
throw new TypeError(callback + ' is not a function');
}
var t = Object(this), len = t.length >>> 0, k = 0, value;
if (arguments.length >= 2) {
value = arguments[1];
} else {
while (k < len && !(k in t)) {
k++;
}
if (k >= len) {
throw new TypeError('Reduce of empty array with no initial value');
}
value = t[k++];
}
for (; k < len; k++) {
if (k in t) {
value = callback(value, t[k], k, t);
}
}
return value;
};
}
// from https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Array/ReduceRight
if (!Array.prototype.reduceRight) {
Array.prototype.reduceRight = function (callback) {
if (this === void 0 || this === null) {
throw new TypeError('Array.prototype.reduceRight called on null or undefined');
}
if (Object.prototype.toString.call(callback) !== '[object Function]') {
throw new TypeError(callback + ' is not a function');
}
var t = Object(this), len = t.length >>> 0, k = len - 1, value;
if (arguments.length >= 2) {
value = arguments[1];
} else {
while (k >= 0 && !(k in t)) {
k--;
}
if (k < 0) {
throw new TypeError('Reduce of empty array with no initial value');
}
value = t[k--];
}
for (; k >= 0; k--) {
if (k in t) {
value = callback(value, t[k], k, t);
}
}
return value;
};
}
// from https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Array/some
if (!Array.prototype.some) {
Array.prototype.some = function (callback) {
if (this === void 0 || this === null) {
throw new TypeError('Array.prototype.reduceRight called on null or undefined');
}
if (Object.prototype.toString.call(callback) !== '[object Function]') {
throw new TypeError(callback + ' is not a function');
}
var t = Object(this);
var len = t.length >>> 0;
var thisArg = arguments.length >= 2 ? arguments[1] : void 0;
for (var i = 0; i < len; i++) {
if (i in t && callback.call(thisArg, t[i], i, t)) {
return true;
}
}
return false;
};
}
//----------------------------------------------------------------------
//
// CSSOM View Module
// https://dev.w3.org/csswg/cssom-view/
//
//----------------------------------------------------------------------
// Fix for IE8-'s Element.getBoundingClientRect()
(function (global) {
if ('TextRectangle' in global && !('width' in global.TextRectangle.prototype)) {
Object.defineProperties(global.TextRectangle.prototype, {
'width': { get: function () { return this.right - this.left; } },
'height': { get: function () { return this.bottom - this.top; } }
});
}
})(window);
/**
* polyfill for Date
*/
// from https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Global_Objects/Date/now
if (!Date.now) {
Date.now = function now () {
return new Date().getTime();
};
}
// from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString
if (!Date.prototype.toISOString) {
(function() {
function pad(number) {
if (number < 10) {
return '0' + number;
}
return number;
}
Date.prototype.toISOString = function () {
return this.getUTCFullYear() +
'-' + pad(this.getUTCMonth() + 1) +
'-' + pad(this.getUTCDate()) +
'T' + pad(this.getUTCHours()) +
':' + pad(this.getUTCMinutes()) +
':' + pad(this.getUTCSeconds()) +
'.' + (this.getUTCMilliseconds() / 1000).toFixed(3).slice(2, 5) +
'Z';
};
}());
}
/**
* polyfill for DOM
*/
(function (global) {
if (!('document' in global)) {
return;
}
var document = global.document;
// IE8- document.getElementsByClassName
if (!document.getElementsByClassName && document.querySelectorAll) {
var getElementsByClassName = function (classNames) {
classNames = String(classNames).replace(/^|\s+/g, '.');
return this.querySelectorAll(classNames);
};
void [HTMLDocument, Element].forEach(function (o) {
o.prototype.getElementsByClassName = getElementsByClassName;
});
}
// IE CustomEvent
if (!('CustomEvent' in global) || typeof global.CustomEvent !== 'function') {
var CustomEvent = function (event, params) {
params = params || { bubbles: false, cancelable: false, detail: undefined };
var evt = document.createEvent('CustomEvent');
evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
return evt;
};
CustomEvent.prototype = global.Event.prototype;
global.CustomEvent = CustomEvent;
}
// Element.matches
// from https://developer.mozilla.org/en/docs/Web/API/Element/matches
(function () {
if (!('Element' in global) || Element.prototype.matches) {
return;
}
var matchesVenders = ['ms', 'o', 'moz', 'webkit'];
var matchesSelectorSuffix = 'MatchesSelector';
for (var i = 0; i < matchesVenders.length; i++) {
var matchesSelector = matchesVenders[i] + matchesSelectorSuffix;
if (matchesSelector in Element.prototype) {
Element.prototype.matches = Element.prototype[matchesSelector];
return;
}
}
if (document.querySelectorAll) {
Element.prototype.matches = function matches (selector) {
var matches = (this.document || this.ownerDocument).querySelectorAll(selector);
var i = matches.length;
while (--i >= 0 && matches.item(i) !== this) {}
return i > -1;
};
}
})();
// Node.textContent
if (Object.defineProperty
&& Object.getOwnPropertyDescriptor
&& Object.getOwnPropertyDescriptor(Element.prototype, 'textContent')
&& !Object.getOwnPropertyDescriptor(Element.prototype, 'textContent').get) {
(function() {
var innerText = Object.getOwnPropertyDescriptor(Element.prototype, 'innerText');
Object.defineProperty(Element.prototype, 'textContent', {
get: function() {
return innerText.get.call(this);
},
set: function(s) {
return innerText.set.call(this, s);
}
});
})();
}
})(window);
/**
* polyfill for DOM Event
*/
// from https://github.com/Financial-Times/polyfill-service/blob/master/polyfills/Event/polyfill.js
(function (global) {
if (('Event' in global) && typeof global.Event === 'function') {
return;
}
var unlistenableWindowEvents = {
click: 1,
dblclick: 1,
keyup: 1,
keypress: 1,
keydown: 1,
mousedown: 1,
mouseup: 1,
mousemove: 1,
mouseover: 1,
mouseenter: 1,
mouseleave: 1,
mouseout: 1,
storage: 1,
storagecommit: 1,
textinput: 1
};
var existingProto = (global.Event && global.Event.prototype) || null;
global.Event = Window.prototype.Event = function Event (type, eventInitDict) {
if (!type) {
throw new Error('Not enough arguments');
}
var event;
if ('createEvent' in document) {
event = document.createEvent('Event');
var bubbles = eventInitDict && eventInitDict.bubbles !== undefined ? eventInitDict.bubbles : false;
var cancelable = eventInitDict && eventInitDict.cancelable !== undefined ? eventInitDict.cancelable : false;
event.initEvent(type, bubbles, cancelable);
return event;
}
event = document.createEventObject();
event.type = type;
event.bubbles = eventInitDict && eventInitDict.bubbles !== undefined ? eventInitDict.bubbles : false;
event.cancelable = eventInitDict && eventInitDict.cancelable !== undefined ? eventInitDict.cancelable : false;
return event;
};
if (existingProto) {
Object.defineProperty(global.Event, 'prototype', {
configurable: false,
enumerable: false,
writable: true,
value: existingProto
});
}
if (!('createEvent' in document)) {
var addEventListener = function (type, listener) {
var element = this;
if (element === global && type in unlistenableWindowEvents) {
throw new Error('In IE8 the event: ' + type + ' is not available on the window object.');
}
if (!element._events) {
element._events = {};
}
if (!element._events[type]) {
element._events[type] = function (event) {
var list = element._events[event.type].list;
var events = list.slice();
var index = -1;
var length = events.length;
var eventElement;
event.preventDefault = function preventDefault () {
if (event.cancelable !== false) {
event.returnValue = false;
}
};
event.stopPropagation = function stopPropagation () {
event.cancelBubble = true;
};
event.stopImmediatePropagation = function stopImmediatePropagation () {
event.cancelBubble = true;
event.cancelImmediate = true;
};
event.currentTarget = element;
event.target = event.target || event.srcElement || element;
event.relatedTarget = event.fromElement ? (event.fromElement === event.target) ? event.toElement : event.fromElement : null;
event.timeStamp = new Date().getTime();
if (event.clientX) {
event.pageX = event.clientX + document.documentElement.scrollLeft;
event.pageY = event.clientY + document.documentElement.scrollTop;
}
while (++index < length && !event.cancelImmediate) {
if (index in events) {
eventElement = events[index];
if (list.indexOf(eventElement) !== -1 && typeof eventElement === 'function') {
eventElement.call(element, event);
}
}
}
};
element._events[type].list = [];
if (element.attachEvent) {
element.attachEvent('on' + type, element._events[type]);
}
}
element._events[type].list.push(listener);
};
var removeEventListener = function (type, listener) {
var element = this;
var index;
if (element._events && element._events[type] && element._events[type].list) {
index = element._events[type].list.indexOf(listener);
if (index !== -1) {
element._events[type].list.splice(index, 1);
if (!element._events[type].list.length) {
if (element.detachEvent) {
element.detachEvent('on' + type, element._events[type]);
}
delete element._events[type];
}
}
}
};
var dispatchEvent = function (event) {
if (!arguments.length) {
throw new Error('Not enough arguments');
}
if (!event || typeof event.type !== 'string') {
throw new Error('DOM Events Exception 0');
}
var element = this, type = event.type;
try {
if (!event.bubbles) {
event.cancelBubble = true;
var cancelBubbleEvent = function (event) {
event.cancelBubble = true;
(element || window).detachEvent('on' + type, cancelBubbleEvent);
};
this.attachEvent('on' + type, cancelBubbleEvent);
}
this.fireEvent('on' + type, event);
} catch (error) {
event.target = element;
do {
event.currentTarget = element;
if ('_events' in element && typeof element._events[type] === 'function') {
element._events[type].call(element, event);
}
if (typeof element['on' + type] === 'function') {
element['on' + type].call(element, event);
}
element = element.nodeType === 9 ? element.parentWindow : element.parentNode;
} while (element && !event.cancelBubble);
}
return true;
};
void [Window, HTMLDocument, Element].forEach(function (o) {
o.prototype.addEventListener = addEventListener;
o.prototype.removeEventListener = removeEventListener;
o.prototype.dispatchEvent = dispatchEvent;
});
// 添加DOMContentLoaded事件
document.attachEvent('onreadystatechange', function() {
if (document.readyState === 'complete') {
document.dispatchEvent(new Event('DOMContentLoaded', {
bubbles: true
}));
}
});
}
})(window);
/**
* polyfill for getComputedStyle
*/
// from https://github.com/Financial-Times/polyfill-service/blob/master/polyfills/getComputedStyle/polyfill.js
(function (global) {
if ('getComputedStyle' in global && typeof global.getComputedStyle === 'function') {
return;
}
function getPixelSize (element, style, property, fontSize) {
var sizeWithSuffix = style[property];
var size = parseFloat(sizeWithSuffix);
var suffix = sizeWithSuffix.split(/\d/)[0];
var rootSize;
fontSize = (fontSize !== null) ? fontSize :
(/%|em/.test(suffix) && element.parentElement) ?
getPixelSize(element.parentElement, element.parentElement.currentStyle, 'fontSize', null) : 16;
rootSize = property === 'fontSize' ? fontSize :
/width/i.test(property) ? element.clientWidth : element.clientHeight;
return (suffix ==='em') ? size * fontSize :
(suffix === 'in') ? size * 96 :
(suffix === 'pt') ? size * 96 / 72 :
(suffix === '%') ? size / 100 * rootSize : size;
}
function setShortStyleProperty (style, property) {
var borderSuffix = property === 'border' ? 'Width' : '';
var t = property + 'Top' + borderSuffix;
var r = property + 'Right' + borderSuffix;
var b = property + 'Bottom' + borderSuffix;
var l = property + 'Left' + borderSuffix;
style[property] = (style[t] == style[r] == style[b] == style[l] ? [style[t]]
: style[t] == style[b] && style[l] == style[r] ? [style[t], style[r]]
: style[l] == style[r] ? [style[t], style[r], style[b]]
: [style[t], style[r], style[b], style[l]]).join(' ');
}
function CSSStyleDeclaration (element) {
var currentStyle = element.currentStyle || {};
var style = this;
var fontSize = getPixelSize(element, currentStyle, 'fontSize', null);
for (var property in currentStyle) {
if (/width|height|margin.|padding.|border.+W/.test(property) && style[property] !== 'auto') {
style[property] = getPixelSize(element, currentStyle, property, fontSize) + 'px';
} else if (property === 'styleFloat') {
style['float'] = currentStyle[property];
} else {
style[property] = currentStyle[property];
}
}
setShortStyleProperty(style, 'margin');
setShortStyleProperty(style, 'padding');
setShortStyleProperty(style, 'border');
style.fontSize = fontSize + 'px';
return style;
}
CSSStyleDeclaration.prototype = {
constructor: CSSStyleDeclaration,
getPropertyPriority: function () { },
getPropertyValue: function (prop) {
return this[prop] || '';
},
item: function () { },
removeProperty: function () { },
setProperty: function () { },
getPropertyCSSValue: function () { }
};
global.getComputedStyle = function (node) {
return new CSSStyleDeclaration(node);
};
})(window);
/**
* polyfill for IE8 in HTML
* https://html.spec.whatwg.org
*/
// document.head
document.head = document.head || document.getElementsByTagName('head')[0];
// HTML Tag shiv
void [
'abbr', 'article', 'aside', 'audio', 'bdi', 'canvas', 'data', 'datalist',
'details', 'dialog', 'figcaption', 'figure', 'footer', 'header', 'hgroup',
'main', 'mark', 'meter', 'nav', 'output', 'picture', 'progress', 'section',
'summary', 'template', 'time', 'video'
].forEach(function (tag) {
document.createElement(tag);
});
/**
* polyfill for String
*/
if (!String.prototype.trim) {
String.prototype.trim = function () {
return String(this).replace(/^\s+/, '').replace(/\s+$/, '');
};
}
/**
* Polyfill for Viewport
*/
(function (global) {
if ('innerWidth' in global && 'innerHeight' in global && 'pageXOffset' in global && 'pageYOffset' in global) {
return;
}
var doc = global.document;
var docEl = doc.documentElement;
var body = doc.body || doc.createElement('body');
function scrollX () {
return (docEl.scrollLeft || body.scrollLeft || 0) - (docEl.clientLeft || body.clientLeft || 0);
}
function scrollY () {
return (docEl.scrollTop || body.scrollTop || 0) - (docEl.clientTop || body.clientTop || 0);
}
Object.defineProperties(global, {
innerWidth: {
get: function () {
return docEl.clientWidth;
}
},
innerHeight: {
get: function () {
return docEl.clientHeight;
}
},
pageXOffset: {
get: scrollX
},
pageYOffset: {
get: scrollY
},
scrollX: {
get: scrollX
},
scrollY: {
get: scrollY
}
});
})(window);
polyfill for Function--源码
司寇经亘
转载于:https://www.cnblogs.com/liuhao-web/p/8473134.html
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