Underdollar jQuery replacement

Replaces jQuery, which causes lots of conflicts, with a framework that is largely cross-compatible

Version vom 26.01.2018. Aktuellste Version

Dieses Skript sollte nicht direkt installiert werden. Es handelt sich hier um eine Bibliothek für andere Skripte, welche über folgenden Befehl in den Metadaten eines Skriptes eingebunden wird // @require https://update.greatest.deepsurf.us/scripts/37273/246089/Underdollar%20jQuery%20replacement.js

// ==UserScript==
// @name        Underdollar jQuery replacement
// @namespace   https://greatest.deepsurf.us
// @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);
}