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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,37 +1,47 @@ | ||
| import { JSDOM } from 'jsdom'; | ||
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| const removeFirstImageIfMatch = (htmlString, imageUrl)=> { | ||
| // Parse the HTML string with jsdom | ||
| const removeFirstImageIfMatch = (htmlString, imageUrlToMatch) => { | ||
| const dom = new JSDOM(htmlString); | ||
| const document = dom.window.document; | ||
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| // Parse the imageUrlToMatch to ignore query strings | ||
| const targetUrl = new dom.window.URL(imageUrlToMatch, 'http://example.com'); // Base URL for relative URLs | ||
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| // Get all image elements | ||
| const images = document.querySelectorAll('img'); | ||
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| // Check if the first image matches the given URL and it's the very first element | ||
| if (images.length > 0 && images[0].src === imageUrl) { | ||
| const firstElementChild = images[0].parentNode.firstChild; | ||
| let isVeryFirstImage = false; | ||
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| // Traverse to check if it's the very first element (ignoring text nodes, comments, etc.) | ||
| let currentNode = firstElementChild; | ||
| while (currentNode) { | ||
| if (currentNode.nodeType === dom.window.Node.ELEMENT_NODE) { | ||
| if (currentNode === images[0]) { | ||
| isVeryFirstImage = true; | ||
| if (images.length > 0) { | ||
| // Create a URL object from the first image's src for comparison | ||
| const firstImageUrl = new dom.window.URL(images[0].src, 'http://example.com'); // Same base URL for comparison | ||
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| // Check if the first image matches the given URL without the query string | ||
| if ( | ||
| firstImageUrl.origin === targetUrl.origin && | ||
| firstImageUrl.pathname === targetUrl.pathname && | ||
| images[0] === images[0].parentNode.firstChild | ||
| ) { | ||
| // Determine if the image is within a <figure> element | ||
| let parentElement = images[0].parentNode; | ||
| while (parentElement && parentElement !== document.body) { | ||
| if (parentElement.tagName.toLowerCase() === 'figure') { | ||
| // If the parent <figure> is found, remove the <figure> element | ||
| parentElement.parentNode.removeChild(parentElement); | ||
| break; | ||
| } else if (parentElement.parentNode) { | ||
| // Move up the DOM tree if no <figure> is found immediately | ||
| parentElement = parentElement.parentNode; | ||
| } else { | ||
| // If the image is not within a <figure>, remove just the image | ||
| images[0].parentNode.removeChild(images[0]); | ||
| break; | ||
| } | ||
| break; | ||
| } | ||
| currentNode = currentNode.nextSibling; | ||
| } | ||
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| // If it's the very first image, remove it | ||
| if (isVeryFirstImage) { | ||
| images[0].parentNode.removeChild(images[0]); | ||
| } | ||
| } | ||
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| // Serialize the DOM back to a string and return it | ||
| return dom.serialize(); | ||
| } | ||
| }; | ||
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| export default removeFirstImageIfMatch |
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