753 lines
30 KiB
JavaScript
753 lines
30 KiB
JavaScript
/**
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* Copyright 2018 Zachary Rauen
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is furnished
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* to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* From: https://github.com/rauenzi/BDPluginLibrary
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*/
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/**
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* @interface
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* @name Offset
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* @property {number} top - Top offset of the target element.
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* @property {number} right - Right offset of the target element.
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* @property {number} bottom - Bottom offset of the target element.
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* @property {number} left - Left offset of the target element.
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* @property {number} height - Outer height of the target element.
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* @property {number} width - Outer width of the target element.
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*/
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/**
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* Function that automatically removes added listener.
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* @callback module:DOMTools~CancelListener
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*/
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export default class DOMTools {
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static escapeID(id) {
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return id.replace(/^[^a-z]+|[^\w-]+/gi, "-");
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}
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/**
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* Adds a style to the document.
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* @param {string} id - identifier to use as the element id
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* @param {string} css - css to add to the document
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*/
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static addStyle(id, css) {
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document.head.append(DOMTools.createElement(`<style id="${id}">${css}</style>`));
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}
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/**
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* Removes a style from the document.
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* @param {string} id - original identifier used
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*/
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static removeStyle(id) {
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const element = document.getElementById(id);
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if (element) element.remove();
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}
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/**
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* Adds/requires a remote script to be loaded
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* @param {string} id - identifier to use for this script
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* @param {string} url - url from which to load the script
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* @returns {Promise} promise that resolves when the script is loaded
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*/
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static addScript(id, url) {
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return new Promise(resolve => {
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const script = document.createElement("script");
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script.id = id;
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script.src = url;
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script.type = "text/javascript";
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script.onload = resolve;
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document.head.append(script);
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});
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}
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/**
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* Removes a remote script from the document.
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* @param {string} id - original identifier used
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*/
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static removeScript(id) {
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id = this.escapeID(id);
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const element = document.getElementById(id);
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if (element) element.remove();
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}
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// https://javascript.info/js-animation
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static animate({timing = _ => _, update, duration}) {
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const start = performance.now();
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requestAnimationFrame(function animate(time) {
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// timeFraction goes from 0 to 1
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let timeFraction = (time - start) / duration;
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if (timeFraction > 1) timeFraction = 1;
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// calculate the current animation state
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const progress = timing(timeFraction);
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update(progress); // draw it
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if (timeFraction < 1) {
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requestAnimationFrame(animate);
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}
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});
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}
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/**
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* This is my shit version of not having to use `$` from jQuery. Meaning
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* that you can pass a selector and it will automatically run {@link module:DOMTools.query}.
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* It also means that you can pass a string of html and it will perform and return `parseHTML`.
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* @see module:DOMTools.parseHTML
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* @see module:DOMTools.query
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* @param {string} selector - Selector to query or HTML to parse
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* @returns {(DocumentFragment|NodeList|HTMLElement)} - Either the result of `parseHTML` or `query`
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*/
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static Q(selector) {
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const element = this.parseHTML(selector);
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const isHTML = element instanceof NodeList ? Array.from(element).some(n => n.nodeType === 1) : element.nodeType === 1;
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if (isHTML) return element;
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return this.query(selector);
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}
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/**
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* Essentially a shorthand for `document.querySelector`. If the `baseElement` is not provided
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* `document` is used by default.
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* @param {string} selector - Selector to query
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* @param {Element} [baseElement] - Element to base the query from
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* @returns {(Element|null)} - The found element or null if not found
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*/
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static query(selector, baseElement) {
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if (!baseElement) baseElement = document;
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return baseElement.querySelector(selector);
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}
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/**
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* Essentially a shorthand for `document.querySelectorAll`. If the `baseElement` is not provided
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* `document` is used by default.
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* @param {string} selector - Selector to query
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* @param {Element} [baseElement] - Element to base the query from
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* @returns {Array<Element>} - Array of all found elements
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*/
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static queryAll(selector, baseElement) {
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if (!baseElement) baseElement = document;
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return baseElement.querySelectorAll(selector);
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}
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/**
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* Parses a string of HTML and returns the results. If the second parameter is true,
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* the parsed HTML will be returned as a document fragment {@see https://developer.mozilla.org/en-US/docs/Web/API/DocumentFragment}.
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* This is extremely useful if you have a list of elements at the top level, they can then be appended all at once to another node.
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*
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* If the second parameter is false, then the return value will be the list of parsed
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* nodes and there were multiple top level nodes, otherwise the single node is returned.
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* @param {string} html - HTML to be parsed
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* @param {boolean} [fragment=false] - Whether or not the return should be the raw `DocumentFragment`
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* @returns {(DocumentFragment|NodeList|HTMLElement)} - The result of HTML parsing
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*/
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static parseHTML(html, fragment = false) {
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const template = document.createElement("template");
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template.innerHTML = html;
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const node = template.content.cloneNode(true);
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if (fragment) return node;
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return node.childNodes.length > 1 ? node.childNodes : node.childNodes[0];
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}
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/** Alternate name for {@link module:DOMTools.parseHTML} */
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static createElement(html, fragment = false) {return this.parseHTML(html, fragment);}
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/**
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* Takes a string of html and escapes it using the brower's own escaping mechanism.
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* @param {String} html - html to be escaped
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*/
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static escapeHTML(html) {
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const textNode = document.createTextNode("");
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const spanElement = document.createElement("span");
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spanElement.append(textNode);
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textNode.nodeValue = html;
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return spanElement.innerHTML;
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}
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/**
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* Adds a list of classes from the target element.
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* @param {Element} element - Element to edit classes of
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* @param {...string} classes - Names of classes to add
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* @returns {Element} - `element` to allow for chaining
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*/
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static addClass(element, ...classes) {
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classes = classes.flat().filter(c => c);
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for (let c = 0; c < classes.length; c++) classes[c] = classes[c].toString().split(" ");
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classes = classes.flat().filter(c => c);
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element.classList.add(...classes);
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return element;
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}
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/**
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* Removes a list of classes from the target element.
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* @param {Element} element - Element to edit classes of
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* @param {...string} classes - Names of classes to remove
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* @returns {Element} - `element` to allow for chaining
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*/
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static removeClass(element, ...classes) {
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for (let c = 0; c < classes.length; c++) classes[c] = classes[c].toString().split(" ");
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classes = classes.flat().filter(c => c);
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element.classList.remove(...classes);
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return element;
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}
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/**
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* When only one argument is present: Toggle class value;
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* i.e., if class exists then remove it and return false, if not, then add it and return true.
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* When a second argument is present:
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* If the second argument evaluates to true, add specified class value, and if it evaluates to false, remove it.
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* @param {Element} element - Element to edit classes of
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* @param {string} classname - Name of class to toggle
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* @param {boolean} [indicator] - Optional indicator for if the class should be toggled
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* @returns {Element} - `element` to allow for chaining
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*/
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static toggleClass(element, classname, indicator) {
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classname = classname.toString().split(" ").filter(c => c);
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if (typeof(indicator) !== "undefined") classname.forEach(c => element.classList.toggle(c, indicator));
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else classname.forEach(c => element.classList.toggle(c));
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return element;
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}
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/**
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* Checks if an element has a specific class
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* @param {Element} element - Element to edit classes of
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* @param {string} classname - Name of class to check
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* @returns {boolean} - `true` if the element has the class, `false` otherwise.
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*/
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static hasClass(element, classname) {
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return classname.toString().split(" ").filter(c => c).every(c => element.classList.contains(c));
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}
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/**
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* Replaces one class with another
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* @param {Element} element - Element to edit classes of
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* @param {string} oldName - Name of class to replace
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* @param {string} newName - New name for the class
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* @returns {Element} - `element` to allow for chaining
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*/
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static replaceClass(element, oldName, newName) {
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element.classList.replace(oldName, newName);
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return element;
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}
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/**
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* Appends `thisNode` to `thatNode`
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* @param {Node} thisNode - Node to be appended to another node
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* @param {Node} thatNode - Node for `thisNode` to be appended to
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* @returns {Node} - `thisNode` to allow for chaining
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*/
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static appendTo(thisNode, thatNode) {
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if (typeof(thatNode) == "string") thatNode = this.query(thatNode);
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if (!thatNode) return null;
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thatNode.append(thisNode);
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return thisNode;
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}
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/**
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* Prepends `thisNode` to `thatNode`
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* @param {Node} thisNode - Node to be prepended to another node
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* @param {Node} thatNode - Node for `thisNode` to be prepended to
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* @returns {Node} - `thisNode` to allow for chaining
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*/
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static prependTo(thisNode, thatNode) {
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if (typeof(thatNode) == "string") thatNode = this.query(thatNode);
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if (!thatNode) return null;
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thatNode.prepend(thisNode);
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return thisNode;
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}
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/**
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* Insert after a specific element, similar to jQuery's `thisElement.insertAfter(otherElement)`.
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* @param {Node} thisNode - The node to insert
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* @param {Node} targetNode - Node to insert after in the tree
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* @returns {Node} - `thisNode` to allow for chaining
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*/
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static insertAfter(thisNode, targetNode) {
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targetNode.parentNode.insertBefore(thisNode, targetNode.nextSibling);
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return thisNode;
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}
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/**
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* Insert after a specific element, similar to jQuery's `thisElement.after(newElement)`.
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* @param {Node} thisNode - The node to insert
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* @param {Node} newNode - Node to insert after in the tree
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* @returns {Node} - `thisNode` to allow for chaining
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*/
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static after(thisNode, newNode) {
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thisNode.parentNode.insertBefore(newNode, thisNode.nextSibling);
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return thisNode;
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}
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/**
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* Gets the next sibling element that matches the selector.
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* @param {Element} element - Element to get the next sibling of
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* @param {string} [selector=""] - Optional selector
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* @returns {Element} - The sibling element
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*/
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static next(element, selector = "") {
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return selector ? element.querySelector("+ " + selector) : element.nextElementSibling;
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}
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/**
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* Gets all subsequent siblings.
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* @param {Element} element - Element to get next siblings of
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* @returns {NodeList} - The list of siblings
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*/
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static nextAll(element) {
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return element.querySelectorAll("~ *");
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}
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/**
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* Gets the subsequent siblings until an element matches the selector.
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* @param {Element} element - Element to get the following siblings of
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* @param {string} selector - Selector to stop at
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* @returns {Array<Element>} - The list of siblings
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*/
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static nextUntil(element, selector) {
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const next = [];
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while (element.nextElementSibling && !element.nextElementSibling.matches(selector)) next.push(element = element.nextElementSibling);
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return next;
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}
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/**
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* Gets the previous sibling element that matches the selector.
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* @param {Element} element - Element to get the previous sibling of
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* @param {string} [selector=""] - Optional selector
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* @returns {Element} - The sibling element
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*/
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static previous(element, selector = "") {
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const previous = element.previousElementSibling;
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if (selector) return previous && previous.matches(selector) ? previous : null;
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return previous;
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}
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/**
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* Gets all preceeding siblings.
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* @param {Element} element - Element to get preceeding siblings of
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* @returns {NodeList} - The list of siblings
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*/
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static previousAll(element) {
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const previous = [];
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while (element.previousElementSibling) previous.push(element = element.previousElementSibling);
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return previous;
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}
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/**
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* Gets the preceeding siblings until an element matches the selector.
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* @param {Element} element - Element to get the preceeding siblings of
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* @param {string} selector - Selector to stop at
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* @returns {Array<Element>} - The list of siblings
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*/
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static previousUntil(element, selector) {
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const previous = [];
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while (element.previousElementSibling && !element.previousElementSibling.matches(selector)) previous.push(element = element.previousElementSibling);
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return previous;
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}
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/**
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* Find which index in children a certain node is. Similar to jQuery's `$.index()`
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* @param {HTMLElement} node - The node to find its index in parent
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* @returns {number} Index of the node
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*/
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static indexInParent(node) {
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const children = node.parentNode.childNodes;
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let num = 0;
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for (let i = 0; i < children.length; i++) {
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if (children[i] == node) return num;
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if (children[i].nodeType == 1) num++;
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}
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return -1;
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}
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/** Shorthand for {@link module:DOMTools.indexInParent} */
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static index(node) {return this.indexInParent(node);}
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/**
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* Gets the parent of the element if it matches the selector,
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* otherwise returns null.
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* @param {Element} element - Element to get parent of
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* @param {string} [selector=""] - Selector to match parent
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* @returns {(Element|null)} - The sibling element or null
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*/
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static parent(element, selector = "") {
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return !selector || element.parentElement.matches(selector) ? element.parentElement : null;
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}
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/**
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* Gets all children of Element that match the selector if provided.
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* @param {Element} element - Element to get all children of
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* @param {string} selector - Selector to match the children to
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* @returns {Array<Element>} - The list of children
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*/
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static findChild(element, selector) {
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return element.querySelector(":scope > " + selector);
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}
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/**
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* Gets all children of Element that match the selector if provided.
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* @param {Element} element - Element to get all children of
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* @param {string} selector - Selector to match the children to
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* @returns {Array<Element>} - The list of children
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*/
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static findChildren(element, selector) {
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return element.querySelectorAll(":scope > " + selector);
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}
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/**
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* Gets all ancestors of Element that match the selector if provided.
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* @param {Element} element - Element to get all parents of
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* @param {string} [selector=""] - Selector to match the parents to
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* @returns {Array<Element>} - The list of parents
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*/
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static parents(element, selector = "") {
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const parents = [];
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if (selector) while (element.parentElement && element.parentElement.closest(selector)) parents.push(element = element.parentElement.closest(selector));
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else while (element.parentElement) parents.push(element = element.parentElement);
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return parents;
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}
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/**
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* Gets the ancestors until an element matches the selector.
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* @param {Element} element - Element to get the ancestors of
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* @param {string} selector - Selector to stop at
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* @returns {Array<Element>} - The list of parents
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*/
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static parentsUntil(element, selector) {
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const parents = [];
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while (element.parentElement && !element.parentElement.matches(selector)) parents.push(element = element.parentElement);
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return parents;
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}
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/**
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* Gets all siblings of the element that match the selector.
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* @param {Element} element - Element to get all siblings of
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* @param {string} [selector="*"] - Selector to match the siblings to
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* @returns {Array<Element>} - The list of siblings
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*/
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static siblings(element, selector = "*") {
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return Array.from(element.parentElement.children).filter(e => e != element && e.matches(selector));
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}
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/**
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* Sets or gets css styles for a specific element. If `value` is provided
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* then it sets the style and returns the element to allow for chaining,
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* otherwise returns the style.
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* @param {Element} element - Element to set the CSS of
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* @param {string} attribute - Attribute to get or set
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* @param {string} [value] - Value to set for attribute
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* @returns {Element|string} - When setting a value, element is returned for chaining, otherwise the value is returned.
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*/
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static css(element, attribute, value) {
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if (typeof(value) == "undefined") return global.getComputedStyle(element)[attribute];
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element.style[attribute] = value;
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return element;
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}
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/**
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* Sets or gets the width for a specific element. If `value` is provided
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* then it sets the width and returns the element to allow for chaining,
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* otherwise returns the width.
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* @param {Element} element - Element to set the CSS of
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* @param {string} [value] - Width to set
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* @returns {Element|string} - When setting a value, element is returned for chaining, otherwise the value is returned.
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*/
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static width(element, value) {
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if (typeof(value) == "undefined") return parseInt(getComputedStyle(element).width);
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element.style.width = value;
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return element;
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}
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/**
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* Sets or gets the height for a specific element. If `value` is provided
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* then it sets the height and returns the element to allow for chaining,
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* otherwise returns the height.
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* @param {Element} element - Element to set the CSS of
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* @param {string} [value] - Height to set
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* @returns {Element|string} - When setting a value, element is returned for chaining, otherwise the value is returned.
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*/
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static height(element, value) {
|
|
if (typeof(value) == "undefined") return parseInt(getComputedStyle(element).height);
|
|
element.style.height = value;
|
|
return element;
|
|
}
|
|
|
|
/**
|
|
* Sets the inner text of an element if given a value, otherwise returns it.
|
|
* @param {Element} element - Element to set the text of
|
|
* @param {string} [text] - Content to set
|
|
* @returns {string} - Either the string set by this call or the current text content of the node.
|
|
*/
|
|
static text(element, text) {
|
|
if (typeof(text) == "undefined") return element.textContent;
|
|
return element.textContent = text;
|
|
}
|
|
|
|
/**
|
|
* Returns the innerWidth of the element.
|
|
* @param {Element} element - Element to retrieve inner width of
|
|
* @return {number} - The inner width of the element.
|
|
*/
|
|
static innerWidth(element) {
|
|
return element.clientWidth;
|
|
}
|
|
|
|
/**
|
|
* Returns the innerHeight of the element.
|
|
* @param {Element} element - Element to retrieve inner height of
|
|
* @return {number} - The inner height of the element.
|
|
*/
|
|
static innerHeight(element) {
|
|
return element.clientHeight;
|
|
}
|
|
|
|
/**
|
|
* Returns the outerWidth of the element.
|
|
* @param {Element} element - Element to retrieve outer width of
|
|
* @return {number} - The outer width of the element.
|
|
*/
|
|
static outerWidth(element) {
|
|
return element.offsetWidth;
|
|
}
|
|
|
|
/**
|
|
* Returns the outerHeight of the element.
|
|
* @param {Element} element - Element to retrieve outer height of
|
|
* @return {number} - The outer height of the element.
|
|
*/
|
|
static outerHeight(element) {
|
|
return element.offsetHeight;
|
|
}
|
|
|
|
/**
|
|
* Gets the offset of the element in the page.
|
|
* @param {Element} element - Element to get offset of
|
|
* @return {Offset} - The offset of the element
|
|
*/
|
|
static offset(element) {
|
|
return element.getBoundingClientRect();
|
|
}
|
|
|
|
static get listeners() { return this._listeners || (this._listeners = {}); }
|
|
|
|
/**
|
|
* This is similar to jQuery's `on` function and can *hopefully* be used in the same way.
|
|
*
|
|
* Rather than attempt to explain, I'll show some example usages.
|
|
*
|
|
* The following will add a click listener (in the `myPlugin` namespace) to `element`.
|
|
* `DOMTools.on(element, "click.myPlugin", () => {console.log("clicked!");});`
|
|
*
|
|
* The following will add a click listener (in the `myPlugin` namespace) to `element` that only fires when the target is a `.block` element.
|
|
* `DOMTools.on(element, "click.myPlugin", ".block", () => {console.log("clicked!");});`
|
|
*
|
|
* The following will add a click listener (without namespace) to `element`.
|
|
* `DOMTools.on(element, "click", () => {console.log("clicked!");});`
|
|
*
|
|
* The following will add a click listener (without namespace) to `element` that only fires once.
|
|
* `const cancel = DOMTools.on(element, "click", () => {console.log("fired!"); cancel();});`
|
|
*
|
|
* @param {Element} element - Element to add listener to
|
|
* @param {string} event - Event to listen to with option namespace (e.g. "event.namespace")
|
|
* @param {(string|callable)} delegate - Selector to run on element to listen to
|
|
* @param {callable} [callback] - Function to fire on event
|
|
* @returns {module:DOMTools~CancelListener} - A function that will undo the listener
|
|
*/
|
|
static on(element, event, delegate, callback) {
|
|
const [type, namespace] = event.split(".");
|
|
const hasDelegate = delegate && callback;
|
|
if (!callback) callback = delegate;
|
|
const eventFunc = !hasDelegate ? callback : function(event) {
|
|
if (event.target.matches(delegate)) {
|
|
callback(event);
|
|
}
|
|
};
|
|
|
|
element.addEventListener(type, eventFunc);
|
|
const cancel = () => {
|
|
element.removeEventListener(type, eventFunc);
|
|
};
|
|
if (namespace) {
|
|
if (!this.listeners[namespace]) this.listeners[namespace] = [];
|
|
const newCancel = () => {
|
|
cancel();
|
|
this.listeners[namespace].splice(this.listeners[namespace].findIndex(l => l.event == type && l.element == element), 1);
|
|
};
|
|
this.listeners[namespace].push({
|
|
event: type,
|
|
element: element,
|
|
cancel: newCancel
|
|
});
|
|
return newCancel;
|
|
}
|
|
return cancel;
|
|
}
|
|
|
|
/**
|
|
* Functionality for this method matches {@link module:DOMTools.on} but automatically cancels itself
|
|
* and removes the listener upon the first firing of the desired event.
|
|
*
|
|
* @param {Element} element - Element to add listener to
|
|
* @param {string} event - Event to listen to with option namespace (e.g. "event.namespace")
|
|
* @param {(string|callable)} delegate - Selector to run on element to listen to
|
|
* @param {callable} [callback] - Function to fire on event
|
|
* @returns {module:DOMTools~CancelListener} - A function that will undo the listener
|
|
*/
|
|
static once(element, event, delegate, callback) {
|
|
const [type, namespace] = event.split(".");
|
|
const hasDelegate = delegate && callback;
|
|
if (!callback) callback = delegate;
|
|
const eventFunc = !hasDelegate ? function(event) {
|
|
callback(event);
|
|
element.removeEventListener(type, eventFunc);
|
|
} : function(event) {
|
|
if (!event.target.matches(delegate)) return;
|
|
callback(event);
|
|
element.removeEventListener(type, eventFunc);
|
|
};
|
|
|
|
element.addEventListener(type, eventFunc);
|
|
const cancel = () => {
|
|
element.removeEventListener(type, eventFunc);
|
|
};
|
|
if (namespace) {
|
|
if (!this.listeners[namespace]) this.listeners[namespace] = [];
|
|
const newCancel = () => {
|
|
cancel();
|
|
this.listeners[namespace].splice(this.listeners[namespace].findIndex(l => l.event == type && l.element == element), 1);
|
|
};
|
|
this.listeners[namespace].push({
|
|
event: type,
|
|
element: element,
|
|
cancel: newCancel
|
|
});
|
|
return newCancel;
|
|
}
|
|
return cancel;
|
|
}
|
|
|
|
static __offAll(event, element) {
|
|
const [type, namespace] = event.split(".");
|
|
let matchFilter = listener => listener.event == type, defaultFilter = _ => _;
|
|
if (element) matchFilter = l => l.event == type && l.element == element, defaultFilter = l => l.element == element;
|
|
const listeners = this.listeners[namespace] || [];
|
|
const list = type ? listeners.filter(matchFilter) : listeners.filter(defaultFilter);
|
|
for (let c = 0; c < list.length; c++) list[c].cancel();
|
|
}
|
|
|
|
/**
|
|
* This is similar to jQuery's `off` function and can *hopefully* be used in the same way.
|
|
*
|
|
* Rather than attempt to explain, I'll show some example usages.
|
|
*
|
|
* The following will remove a click listener called `onClick` (in the `myPlugin` namespace) from `element`.
|
|
* `DOMTools.off(element, "click.myPlugin", onClick);`
|
|
*
|
|
* The following will remove a click listener called `onClick` (in the `myPlugin` namespace) from `element` that only fired when the target is a `.block` element.
|
|
* `DOMTools.off(element, "click.myPlugin", ".block", onClick);`
|
|
*
|
|
* The following will remove a click listener (without namespace) from `element`.
|
|
* `DOMTools.off(element, "click", onClick);`
|
|
*
|
|
* The following will remove all listeners in namespace `myPlugin` from `element`.
|
|
* `DOMTools.off(element, ".myPlugin");`
|
|
*
|
|
* The following will remove all click listeners in namespace `myPlugin` from *all elements*.
|
|
* `DOMTools.off("click.myPlugin");`
|
|
*
|
|
* The following will remove all listeners in namespace `myPlugin` from *all elements*.
|
|
* `DOMTools.off(".myPlugin");`
|
|
*
|
|
* @param {(Element|string)} element - Element to remove listener from
|
|
* @param {string} [event] - Event to listen to with option namespace (e.g. "event.namespace")
|
|
* @param {(string|callable)} [delegate] - Selector to run on element to listen to
|
|
* @param {callable} [callback] - Function to fire on event
|
|
* @returns {Element} - The original element to allow for chaining
|
|
*/
|
|
static off(element, event, delegate, callback) {
|
|
if (typeof(element) == "string") return this.__offAll(element);
|
|
const [type, namespace] = event.split(".");
|
|
if (namespace) return this.__offAll(event, element);
|
|
|
|
const hasDelegate = delegate && callback;
|
|
if (!callback) callback = delegate;
|
|
const eventFunc = !hasDelegate ? callback : function(event) {
|
|
if (event.target.matches(delegate)) {
|
|
callback(event);
|
|
}
|
|
};
|
|
|
|
element.removeEventListener(type, eventFunc);
|
|
return element;
|
|
}
|
|
|
|
/**
|
|
* Adds a listener for when the node is added/removed from the document body.
|
|
* The listener is automatically removed upon firing.
|
|
* @param {HTMLElement} node - node to wait for
|
|
* @param {callable} callback - function to be performed on event
|
|
* @param {boolean} onMount - determines if it should fire on Mount or on Unmount
|
|
*/
|
|
static onMountChange(node, callback, onMount = true) {
|
|
const wrappedCallback = () => {
|
|
this.observer.unsubscribe(wrappedCallback);
|
|
callback();
|
|
};
|
|
this.observer.subscribe(wrappedCallback, mutation => {
|
|
const nodes = Array.from(onMount ? mutation.addedNodes : mutation.removedNodes);
|
|
const directMatch = nodes.indexOf(node) > -1;
|
|
const parentMatch = nodes.some(parent => parent.contains(node));
|
|
return directMatch || parentMatch;
|
|
});
|
|
return node;
|
|
}
|
|
|
|
/** Shorthand for {@link module:DOMTools.onMountChange} with third parameter `true` */
|
|
static onMount(node, callback) { return this.onMountChange(node, callback); }
|
|
|
|
/** Shorthand for {@link module:DOMTools.onMountChange} with third parameter `false` */
|
|
static onUnmount(node, callback) { return this.onMountChange(node, callback, false); }
|
|
|
|
/** Alias for {@link module:DOMTools.onMount} */
|
|
static onAdded(node, callback) { return this.onMount(node, callback); }
|
|
|
|
/** Alias for {@link module:DOMTools.onUnmount} */
|
|
static onRemoved(node, callback) { return this.onUnmount(node, callback, false); }
|
|
|
|
/**
|
|
* Helper function which combines multiple elements into one parent element
|
|
* @param {Array<HTMLElement>} elements - array of elements to put into a single parent
|
|
*/
|
|
static wrap(elements) {
|
|
const domWrapper = this.parseHTML(`<div class="dom-wrapper"></div>`);
|
|
for (let e = 0; e < elements.length; e++) domWrapper.appendChild(elements[e]);
|
|
return domWrapper;
|
|
}
|
|
|
|
/**
|
|
* Resolves the node to an HTMLElement. This is mainly used by library modules.
|
|
* @param {(jQuery|Element)} node - node to resolve
|
|
*/
|
|
static resolveElement(node) {
|
|
if (!(node instanceof jQuery) && !(node instanceof Element)) return undefined;
|
|
return node instanceof jQuery ? node[0] : node;
|
|
}
|
|
} |