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Replaces jQuery, which causes lots of conflicts, with a framework that is largely cross-compatible
当前为
此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.greasyfork.icu/scripts/37273/246089/Underdollar%20jQuery%20replacement.js
// ==UserScript==
// @name Underdollar jQuery replacement
// @namespace http://greasyfork.icu
// @include https://sellers.shopgoodwill.com/*
// @version 1.1
// @description Replaces jQuery, which causes lots of conflicts, with a framework that is largely cross-compatible
// @grant none
// ==/UserScript==
console.log('ostrich');
class underdollar {
constructor(selector) {
this.is_$ = true;
var singleNode = (function () {
// make an empty node list to inherit from
var nodelist = document.createDocumentFragment().childNodes;
// return a function to create object formed as desired
return function (node) {
return Object.create(nodelist, {
'0': {value: node, enumerable: true},
'length': {value: 1},
'item': {
"value": function (i) {
return this[+i || 0];
},
enumerable: true
}
}); // return an object pretending to be a NodeList
};
}());
if (arguments.length < 1 || typeof selector == 'undefined') {
this.nodeList = 'empty';
} else {
if (selector instanceof Element) {
this.nodeList = singleNode(selector);
} else if (selector instanceof NodeList || selector instanceof HTMLCollection) {
this.nodeList = selector;
} else if (selector instanceof Array) {
selector.forEach(function(el) {
if (el instanceof Element) {
el.classList.add('udTempClassSelector');
}
});
this.nodeList = _$('.udTempClassSelector').nodeList;
Array.prototype.forEach.call(_$('.udTempClassSelector').nodeList, function(el) {
el.classList.remove('udTempClassSelector');
});
} else {
this.nodeList = document.querySelectorAll(selector);
}
this.selector = selector;
}
Array.prototype.forEach.call(document.querySelectorAll('.udTempClassSelector'), function(el) {
el.classList.remove('.udTempClassSelector');
});
this.length = this.nodeList.length;
var nodeArray = [];
for (var i=0; i<this.length; i++) {
this[i] = this.nodeList[i];
}
}
// selection functions
parent() {
if (this.nodeList instanceof NodeList) {
var myParent = this.nodeList[0].parentNode;
return _$(myParent);
}
}
children() {
return _$(this.nodeList[0].children);
}
first() {
if (this.nodeList instanceof NodeList) {
return _$(this.nodeList[0]);
} else {
return _$(this.selector);
}
}
last() {
if (this.nodeList instanceof NodeList) {
var length = this.nodeList.length;
this.nodeList[length-1].classList.add('udLastTempClass');
var returnThis = _$('.udLastTempClass');
_$('.udLastTempClass').removeClass('.udLastTempClass');
return returnThis;
} else {
return _$(this.selector);
}
}
nth(pos) { // Takes 1-indexed values
pos -= 1;
return _$(this[pos]);
}
index(pos) { // Takes 0-indexed values
return _$(this[pos]);
}
next() {
return _$(this[this.length-1].nextElementSibling);
}
contents() {
// var frame = document.getElementById('myframe');
// var c = frame.contentDocument || frame.contentWindow.document;
return this.nodeList[0].contentDocument || this.nodeList[0].contentWindow.document;
}
// display functions
css(arg1, arg2){
var me = this;
if (typeof arg1 == 'string' && typeof arg2 == 'string') {
Array.prototype.forEach.call(this.nodeList, function(el){
el.style[arg1] = arg2;
});
} else if (arg1 instanceof Object) {
Array.prototype.forEach.call(this.nodeList, function(el) {
_$().each(arg1, function(styleName, styleValue) {
el.style[styleName] = styleValue;
});
});
}
return _$(this.selector);
}
hide() {
this.css('display', 'none');
return _$(this.selector);
}
show() {
this.css('display', '');
return _$(this.selector);
}
toggle() {
if (this.nodeList instanceof NodeList) {
this.each(function(el){
if (el.style.display == 'none') {
el.style.display = '';
} else {
el.style.display = 'none';
}
});
}
return _$(this.selector);
}
// DOM functions
before(htmlString) {
this.each(function(el){
el.insertAdjacentHTML('beforebegin', htmlString);
});
return _$(this.selector);
}
after(htmlString) {
this.each(function(el){
el.insertAdjacentHTML('afterend', htmlString);
});
return _$(this.selector);
}
append(something) {
if (something instanceof Element) {
this.each(function(el) {
// how to function with appending one existing thing when there are multiple things to append to??
el.appendChild(something);
});
} else if (something instanceof NodeList) {
Array.prototype.forEach.call(something, function(el) {
this.append(something);
});
} else if (typeof something == 'string') {
this.each(function(el) {
var newEl = document.createElement('text');
newEl.innerHTML = something;
el.appendChild(newEl)
});
} else if (something.hasOwnProperty('is_$')) {
if (something.nodeList.length == 1) {
this.each(function(el) {
// how to function with appending one existing thing when there are multiple things to append to??
el.appendChild(something.nodeList[0]);
});
} else if (something.nodeList.length > 1) {
this.each(function(el) {
// how to function with appending one existing thing when there are multiple things to append to??
//el.appendChild(something.nodeList[0]);
Array.prototype.forEach.call(something.nodeList, function(myNode, nodeIndex) {
el.appendChild(myNode);
});
});
}
}
return _$(this.selector);
}
prepend(something) {
if (something instanceof Element) {
this.each(function(el) {
// how to function with appending one existing thing when there are multiple things to append to??
el.insertBefore(something, el.firstChild);
});
} else if (something instanceof NodeList) {
Array.prototype.forEach.call(something, function(el) {
this.append(something, el.firstChild);
});
} else if (typeof something == 'string') {
this.each(function(el) {
var newEl = document.createElement('text');
newEl.innerHTML = something;
el.insertBefore(newEl, el.firstChild)
});
} else if (something.hasOwnProperty('is_$')) {
if (something.nodeList.length == 1) {
this.each(function(el) {
// how to function with appending one existing thing when there are multiple things to append to??
el.insertBefore(something.nodeList[0], el.firstChild);
});
} else if (something.nodeList.length > 1) {
this.each(function(el) {
// how to function with appending one existing thing when there are multiple things to append to??
Array.prototype.forEach.call(something.nodeList, function(myNode, nodeIndex) {
el.insertBefore(myNode, el.firstChild);
});
});
}
}
return _$(this.selector);
}
remove() {
this.each(function(el) {
el.parentNode.removeChild(el);
});
}
wrap(htmlString) {
this.after(htmlString);
var newEl = this.next();
newEl.prepend(this);
}
wrapInner(htmlString) {
this.after(htmlString);
var newEl = this.next();
console.dir(this.children());
Array.prototype.forEach.call(this.children(), function(el) {
newEl.prepend(el);
});
this.prepend(newEl);
//this.children().wrap(htmlString);
}
// other element property/content functions
attr(arg1, arg2) {
if (arguments.length < 2) {
return this.nodeList[0].getAttribute(arg1);
} else {
this.each(function(el) {
el.setAttribute(arg1, arg2);
});
return _$(this.selector);
}
}
text(textString) {
if (arguments.length < 1) {
var myVal = '';
this.each(function(el){
myVal += el.textContent;
});
return myVal;
} else {
this.each(function(el){
el.textContent = textString;
});
return _$(this.selector);
}
}
html(arg1) {
if (arguments.length < 1) {
var myVal = '';
this.each(function(el){
myVal += el.innerHTML;
});
return myVal;
} else {
this.each(function(el){
el.innerHTML = arg1;
});
return _$(this.selector);
}
}
val(arg1) {
if (arguments.length < 1) {
if (this.length > 1) {
var myVals = [];
this.each(function(el){
myVals.push(el.value)
});
return myVals;
} else if (this.length == 1) {
return this.nodeList[0].value;
}
} else {
this.each(function(el){
el.value = arg1;
});
return _$(this.selector);
}
}
isVisible() {
if (this.length == 1) {
return this.nodeList[0].offsetWidth !== 0 && this.nodeList[0].offsetHeight !== 0;
} else if (this.length == 1) {
var numVisible = 0;
this.each(function(el){
if (!(el.offsetWidth !== 0) || !(el.offsetHeight !== 0)) {
numVisible++;
}
});
return numVisible;
}
}
// class functions
addClass(classNames) {
var classNameList = classNames.split(/[ ,]/gim);
this.each(function(el) {
_$().each(classNameList, function(index, val) {
if (val.length > 0) {
el.classList.add(val);
}
});
});
}
removeClass(classNames) {
var classNameList = classNames.split(/[ ,]/gim);
this.each(function(el) {
_$().each(classNameList, function(index, val) {
if (val.length > 0) {
el.classList.remove(val);
}
});
});
}
toggleClass(classNames) {
var classNameList = classNames.split(/[ ,]/gim);
this.each(function(el) {
_$().each(classNameList, function(index, val) {
if (val.length > 0) {
el.classList.toggle(val);
}
});
});
}
replaceClass(oldClass, newClass) {
this.each(function(el) {
el.classList.replace(oldClass, newClass);
});
}
// event functions
bind(eventName, fn) {
Array.prototype.forEach.call(this.nodeList, function(el) {
el.addEventListener(eventName, fn);
});
}
trigger(eventName) {
var event = document.createEvent('HTMLEvents');
event.initEvent(eventName, true, false);
this.each(function(el){
el.dispatchEvent(event);
});
}
// json functions
getJSON(url, placeholder, fn) {
var Httpreq = new XMLHttpRequest(); // a new request
Httpreq.open("GET",url,false);
Httpreq.send(null);
var data = JSON.parse(Httpreq.responseText);
if (arguments.length > 2) {
fn(data);
}
return data;
}
// utility functions
filter(fn) {
this.each(function(el){
if (fn(el)) {
el.classList.add('udFilterTempClass');
}
});
var returnThis = _$('.udFilterTempClass');
_$('.udFilterTempClass').each(function(el) {
el.classList.remove('udFilterTempClass');
});
// var returnThis = Array.prototype.filter.call(this.nodeList, fn);
// console.dir(returnThis);
return returnThis;
}
each(arg1, arg2){
if (arg1 instanceof Object && arg2 instanceof Function) {
for (var p in arg1) {
if (arg1.hasOwnProperty(p)) {
arg2(p, arg1[p]);
}
}
} else if (arg1 instanceof Array && arg2 instanceof Function) {
Array.prototype.forEach.call(arg1, arg2);
} else if (this.nodeList instanceof Array || this.nodeList instanceof NodeList) {
Array.prototype.forEach.call(this.nodeList, arg1);
}
return _$(this.selector);
}
iterateOverObject(obj, fn) {
if (obj instanceof Object) {
for (var p in obj) {
if (obj.hasOwnProperty(p)) {
fn(p, obj[p]);
}
}
}
return _$(this.selector);
}
}
function _$(selector) {
return new underdollar(selector);
}