156 lines
3.5 KiB
JavaScript
156 lines
3.5 KiB
JavaScript
/**
|
|
* implement Object.create for browsers without native support
|
|
*/
|
|
if (typeof Object.create !== 'function') {
|
|
Object.create = function (o) {
|
|
function F() {}
|
|
F.prototype = o;
|
|
return new F();
|
|
};
|
|
}
|
|
|
|
/**
|
|
* implement Object.keys for browsers without native support
|
|
*/
|
|
if (typeof Object.keys !== 'function') {
|
|
Object.keys = function(o) {
|
|
if (o !== Object(o)) {
|
|
throw new TypeError('Object.keys called on a non-object');
|
|
}
|
|
var k=[],p;
|
|
for (p in o) {
|
|
if (Object.prototype.hasOwnProperty.call(o,p)) {
|
|
k.push(p);
|
|
}
|
|
}
|
|
return k;
|
|
};
|
|
}
|
|
|
|
/**
|
|
* implement Array.filter for browsers without native support
|
|
*/
|
|
if (!Array.prototype.filter) {
|
|
Array.prototype.filter = function(fun /*, thisp*/) {
|
|
var len = this.length >>> 0;
|
|
if (typeof fun !== "function"){
|
|
throw new TypeError();
|
|
}
|
|
|
|
var res = [];
|
|
var thisp = arguments[1];
|
|
for (var i = 0; i < len; i++) {
|
|
if (i in this) {
|
|
var val = this[i]; // in case fun mutates this
|
|
if (fun.call(thisp, val, i, this)) {
|
|
res.push(val);
|
|
}
|
|
}
|
|
}
|
|
return res;
|
|
};
|
|
}
|
|
|
|
/**
|
|
* implement Array.indexOf for browsers without native support
|
|
*/
|
|
if (!Array.prototype.indexOf){
|
|
Array.prototype.indexOf = function(elt /*, from*/)
|
|
{
|
|
var len = this.length;
|
|
|
|
var from = Number(arguments[1]) || 0;
|
|
from = (from < 0) ? Math.ceil(from) : Math.floor(from);
|
|
if (from < 0){
|
|
from += len;
|
|
}
|
|
|
|
for (; from < len; from++)
|
|
{
|
|
if (from in this && this[from] === elt){
|
|
return from;
|
|
}
|
|
}
|
|
return -1;
|
|
};
|
|
}
|
|
|
|
/**
|
|
* implement Array.map for browsers without native support
|
|
*/
|
|
if (!Array.prototype.map){
|
|
Array.prototype.map = function(fun /*, thisp */){
|
|
"use strict";
|
|
|
|
if (this === void 0 || this === null){
|
|
throw new TypeError();
|
|
}
|
|
|
|
var t = Object(this);
|
|
var len = t.length >>> 0;
|
|
if (typeof fun !== "function"){
|
|
throw new TypeError();
|
|
}
|
|
|
|
var res = new Array(len);
|
|
var thisp = arguments[1];
|
|
for (var i = 0; i < len; i++){
|
|
if (i in t){
|
|
res[i] = fun.call(thisp, t[i], i, t);
|
|
}
|
|
}
|
|
|
|
return res;
|
|
};
|
|
}
|
|
|
|
//https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Function/bind
|
|
if (!Function.prototype.bind) {
|
|
Function.prototype.bind = function (oThis) {
|
|
if (typeof this !== "function") {
|
|
// closest thing possible to the ECMAScript 5 internal IsCallable function
|
|
throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable");
|
|
}
|
|
|
|
var aArgs = Array.prototype.slice.call(arguments, 1),
|
|
fToBind = this,
|
|
fNOP = function () {},
|
|
fBound = function () {
|
|
return fToBind.apply(this instanceof fNOP && oThis
|
|
? this
|
|
: oThis,
|
|
aArgs.concat(Array.prototype.slice.call(arguments)));
|
|
};
|
|
|
|
fNOP.prototype = this.prototype;
|
|
fBound.prototype = new fNOP();
|
|
|
|
return fBound;
|
|
};
|
|
}
|
|
|
|
//https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/String/Trim
|
|
if(!String.prototype.trim) {
|
|
String.prototype.trim = function () {
|
|
return this.replace(/^\s+|\s+$/g,'');
|
|
};
|
|
}
|
|
|
|
// Older Firefoxes doesn't support outerHTML
|
|
// From http://stackoverflow.com/questions/1700870/how-do-i-do-outerhtml-in-firefox#answer-3819589
|
|
function outerHTML(node){
|
|
// In newer browsers use the internal property otherwise build a wrapper.
|
|
return node.outerHTML || (
|
|
function(n){
|
|
var div = document.createElement('div'), h;
|
|
div.appendChild( n.cloneNode(true) );
|
|
h = div.innerHTML;
|
|
div = null;
|
|
return h;
|
|
})(node);
|
|
}
|
|
|
|
// devicePixelRatio for IE10
|
|
window.devicePixelRatio = window.devicePixelRatio ||
|
|
window.screen.deviceXDPI / window.screen.logicalXDPI || 1;
|