39 lines
1.2 KiB
JavaScript
39 lines
1.2 KiB
JavaScript
import { getLocationHash } from '../lib/utils/url_utility';
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const lineNumberRe = /^(L|LC)[0-9]+/;
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const updateLineNumbersOnBlobPermalinks = (linksToUpdate) => {
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const hash = getLocationHash();
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if (hash && lineNumberRe.test(hash)) {
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const hashUrlString = `#${hash}`;
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[].concat(Array.prototype.slice.call(linksToUpdate)).forEach((permalinkButton) => {
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const baseHref =
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permalinkButton.getAttribute('data-original-href') ||
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(() => {
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const href = permalinkButton.getAttribute('href');
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permalinkButton.setAttribute('data-original-href', href);
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return href;
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})();
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permalinkButton.setAttribute('href', `${baseHref}${hashUrlString}`);
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});
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}
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};
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function BlobLinePermalinkUpdater(blobContentHolder, lineNumberSelector, elementsToUpdate) {
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const updateBlameAndBlobPermalinkCb = () => {
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// Wait for the hash to update from the LineHighlighter callback
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setTimeout(() => {
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updateLineNumbersOnBlobPermalinks(elementsToUpdate);
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}, 0);
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};
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blobContentHolder.addEventListener('click', (e) => {
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if (e.target.matches(lineNumberSelector)) {
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updateBlameAndBlobPermalinkCb();
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}
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});
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updateBlameAndBlobPermalinkCb();
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}
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export default BlobLinePermalinkUpdater;
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