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4c1ad0f4f2
- Form SDK implementation - Basic Forms - Dynamics Forms - Basic Blocks + Data Model Block - Form Compilation - Turbo integration
64 lines
2.4 KiB
JavaScript
64 lines
2.4 KiB
JavaScript
/**
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* highlight v3 | MIT license | Johann Burkard <jb@eaio.com>
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* Highlights arbitrary terms in a node.
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*
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* - Modified by Marshal <beatgates@gmail.com> 2011-6-24 (added regex)
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* - Modified by Brian Reavis <brian@thirdroute.com> 2012-8-27 (cleanup)
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*/
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import { replaceNode } from "../vanilla.js";
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export const highlight = (element, regex) => {
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if (regex === null)
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return;
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// convet string to regex
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if (typeof regex === 'string') {
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if (!regex.length)
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return;
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regex = new RegExp(regex, 'i');
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}
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// Wrap matching part of text node with highlighting <span>, e.g.
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// Soccer -> <span class="highlight">Soc</span>cer for regex = /soc/i
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const highlightText = (node) => {
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var match = node.data.match(regex);
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if (match && node.data.length > 0) {
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var spannode = document.createElement('span');
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spannode.className = 'highlight';
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var middlebit = node.splitText(match.index);
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middlebit.splitText(match[0].length);
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var middleclone = middlebit.cloneNode(true);
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spannode.appendChild(middleclone);
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replaceNode(middlebit, spannode);
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return 1;
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}
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return 0;
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};
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// Recurse element node, looking for child text nodes to highlight, unless element
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// is childless, <script>, <style>, or already highlighted: <span class="hightlight">
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const highlightChildren = (node) => {
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if (node.nodeType === 1 && node.childNodes && !/(script|style)/i.test(node.tagName) && (node.className !== 'highlight' || node.tagName !== 'SPAN')) {
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Array.from(node.childNodes).forEach(element => {
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highlightRecursive(element);
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});
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}
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};
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const highlightRecursive = (node) => {
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if (node.nodeType === 3) {
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return highlightText(node);
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}
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highlightChildren(node);
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return 0;
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};
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highlightRecursive(element);
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};
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/**
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* removeHighlight fn copied from highlight v5 and
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* edited to remove with(), pass js strict mode, and use without jquery
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*/
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export const removeHighlight = (el) => {
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var elements = el.querySelectorAll("span.highlight");
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Array.prototype.forEach.call(elements, function (el) {
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var parent = el.parentNode;
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parent.replaceChild(el.firstChild, el);
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parent.normalize();
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});
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};
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//# sourceMappingURL=highlight.js.map
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