41 lines
1.4 KiB
JavaScript
41 lines
1.4 KiB
JavaScript
import { wrapNodes, isTextNode } from './dom_utils';
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export const cachedData = new Map();
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export const getCurrentHoverElement = () => cachedData.get('current');
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export const setCurrentHoverElement = (el) => cachedData.set('current', el);
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export const addInteractionClass = ({ path, d, wrapTextNodes }) => {
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const lineNumber = d.start_line + 1;
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const lines = document
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.querySelector(`[data-path="${path}"]`)
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.querySelectorAll(`.blob-content #LC${lineNumber}, .line_content:not(.old) #LC${lineNumber}`);
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if (!lines?.length) return;
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lines.forEach((line) => {
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let charCount = 0;
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if (wrapTextNodes) {
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line.childNodes.forEach((elm) => {
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if (isTextNode(elm)) {
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// Highlight.js does not wrap all text nodes by default
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// We need all text nodes to be wrapped in order to append code nav attributes
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elm.replaceWith(...wrapNodes(elm.textContent));
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}
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});
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}
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const el = [...line.childNodes].find(({ textContent }) => {
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if (charCount === d.start_char) return true;
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charCount += textContent.length;
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return false;
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});
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if (el && !isTextNode(el)) {
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el.dataset.charIndex = d.start_char;
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el.dataset.lineIndex = d.start_line;
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el.classList.add('cursor-pointer', 'code-navigation', 'js-code-navigation');
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el.closest('.line').classList.add('code-navigation-line');
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}
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});
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};
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