discourse/app/assets/javascripts/polyfills.js

118 lines
4.0 KiB
JavaScript

/* eslint-disable */
// Any IE only polyfill should be moved in discourse-internet-explorer plugin
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/flags#Polyfill
// IE and EDGE
if (RegExp.prototype.flags === undefined) {
Object.defineProperty(RegExp.prototype, "flags", {
configurable: true,
get: function() {
return this.toString().match(/[gimsuy]*$/)[0];
}
});
}
// https://github.com/uxitten/polyfill/blob/master/string.polyfill.js
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/padStart
if (!String.prototype.padStart) {
String.prototype.padStart = function padStart(targetLength, padString) {
targetLength = targetLength >> 0; //truncate if number, or convert non-number to 0;
padString = String(typeof padString !== "undefined" ? padString : " ");
if (this.length >= targetLength) {
return String(this);
} else {
targetLength = targetLength - this.length;
if (targetLength > padString.length) {
padString += padString.repeat(targetLength / padString.length); //append to original to ensure we are longer than needed
}
return padString.slice(0, targetLength) + String(this);
}
};
}
// https://github.com/uxitten/polyfill/blob/master/string.polyfill.js
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/padEnd
if (!String.prototype.padEnd) {
String.prototype.padEnd = function padEnd(targetLength, padString) {
targetLength = targetLength >> 0; //floor if number or convert non-number to 0;
padString = String(typeof padString !== "undefined" ? padString : " ");
if (this.length > targetLength) {
return String(this);
} else {
targetLength = targetLength - this.length;
if (targetLength > padString.length) {
padString += padString.repeat(targetLength / padString.length); //append to original to ensure we are longer than needed
}
return String(this) + padString.slice(0, targetLength);
}
};
}
// Needed for iOS 9.3
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/entries
if (!Object.entries) {
Object.entries = function(obj) {
var ownProps = Object.keys(obj),
i = ownProps.length,
resArray = new Array(i); // preallocate the Array
while (i--) resArray[i] = [ownProps[i], obj[ownProps[i]]];
return resArray;
};
}
// Needed for iOS 9.3
// adapted from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/entries
if (!Object.values) {
Object.values = function(obj) {
var ownProps = Object.keys(obj),
i = ownProps.length,
resArray = new Array(i); // preallocate the Array
while (i--) resArray[i] = obj[ownProps[i]];
return resArray;
};
}
// Needed for iOS 9.3
// https://developer.mozilla.org/fr/docs/Web/API/NodeList/forEach
if (window.NodeList && !NodeList.prototype.forEach) {
NodeList.prototype.forEach = function(callback, thisArg) {
thisArg = thisArg || window;
for (var i = 0; i < this.length; i++) {
callback.call(thisArg, this[i], i, this);
}
};
}
// Needed for iOS 9.3
// from: https://github.com/jserz/js_piece/blob/master/DOM/ChildNode/before()/before().md
(function(arr) {
arr.forEach(function(item) {
if (item.hasOwnProperty("before")) {
return;
}
Object.defineProperty(item, "before", {
configurable: true,
enumerable: true,
writable: true,
value: function before() {
var argArr = Array.prototype.slice.call(arguments),
docFrag = document.createDocumentFragment();
argArr.forEach(function(argItem) {
var isNode = argItem instanceof Node;
docFrag.appendChild(
isNode ? argItem : document.createTextNode(String(argItem))
);
});
this.parentNode.insertBefore(docFrag, this);
}
});
});
})([Element.prototype, CharacterData.prototype, DocumentType.prototype]);
/* eslint-enable */