/**
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* ISC License
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*
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* Copyright (c) 2018, Andrea Giammarchi, @WebReflection
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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class QueryResult extends Array {}
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const {create, defineProperty} = Object;
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const AP = Array.prototype;
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const DOM_CONTENT_LOADED = 'DOMContentLoaded';
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const LOAD = 'load';
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const NO_TRANSPILER_ISSUES = (new QueryResult) instanceof QueryResult;
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const QRP = QueryResult.prototype;
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// fixes methods returning non QueryResult
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/* istanbul ignore if */
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if (!NO_TRANSPILER_ISSUES)
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Object.getOwnPropertyNames(AP).forEach(name => {
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const desc = Object.getOwnPropertyDescriptor(AP, name);
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if (typeof desc.value === 'function') {
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const fn = desc.value;
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desc.value = function () {
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const result = fn.apply(this, arguments);
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return result instanceof Array ? patch(result) : result;
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};
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}
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defineProperty(QRP, name, desc);
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});
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// fixes badly transpiled classes
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const patch = NO_TRANSPILER_ISSUES ?
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qr => qr :
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/* istanbul ignore next */
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qr => {
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const nqr = create(QRP);
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push.apply(nqr, slice(qr));
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return nqr;
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};
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const push = AP.push;
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const search = (list, el) => {
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const nodes = [];
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const length = list.length;
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for (let i = 0; i < length; i++) {
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const css = list[i].trim();
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if (css.slice(-6) === ':first') {
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const node = el.querySelector(css.slice(0, -6));
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if (node) push.call(nodes, node);
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} else
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push.apply(nodes, slice(el.querySelectorAll(css)));
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}
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return new QueryResult(...nodes);
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};
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const slice = NO_TRANSPILER_ISSUES ?
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patch :
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/* istanbul ignore next */
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all => {
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// do not use slice.call(...) due old IE gotcha
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const nodes = [];
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const length = all.length;
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for (let i = 0; i < length; i++)
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nodes[i] = all[i];
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return nodes;
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}
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// use function to avoid usage of Symbol.hasInstance
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// (broken in older browsers anyway)
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const $ = function $(CSS, parent = document) {
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switch (typeof CSS) {
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case 'string': return patch(search(CSS.split(','), parent));
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case 'object':
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// needed to avoid iterator dance (breaks in older IEs)
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const nodes = [];
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const all = ('nodeType' in CSS || 'postMessage' in CSS) ? [CSS] : CSS;
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push.apply(nodes, slice(all));
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return patch(new QueryResult(...nodes));
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case 'function':
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const $parent = $(parent);
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const $window = $(parent.defaultView);
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const handler = {handleEvent(event) {
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$parent.off(DOM_CONTENT_LOADED, handler);
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$window.off(LOAD, handler);
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CSS(event);
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}};
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$parent.on(DOM_CONTENT_LOADED, handler);
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$window.on(LOAD, handler);
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const rs = parent.readyState;
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if (rs == 'complete' || (rs != 'loading' && !parent.documentElement.doScroll))
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setTimeout(() => $parent.dispatch(DOM_CONTENT_LOADED));
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return $;
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}
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};
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$.prototype = QRP;
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$.extend = (key, value) =>
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(defineProperty(QRP, key, {configurable: true, value}), $);
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// dropped usage of for-of to avoid broken iteration dance in older IEs
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$.extend('dispatch', function dispatch(type, init = {}) {
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const event = new CustomEvent(type, init);
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const length = this.length;
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for (let i = 0; i < length; i++)
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this[i].dispatchEvent(event);
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return this;
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})
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.extend('off', function off(type, handler, options = false) {
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const length = this.length;
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for (let i = 0; i < length; i++)
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this[i].removeEventListener(type, handler, options);
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return this;
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})
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.extend('on', function on(type, handler, options = false) {
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const length = this.length;
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for (let i = 0; i < length; i++)
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this[i].addEventListener(type, handler, options);
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return this;
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});
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export default $;
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