mirror of https://gitlab.com/curben/blog
65 lines
1.9 KiB
JavaScript
65 lines
1.9 KiB
JavaScript
'use strict'
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/* global hexo */
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/*
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* Put {% cloudinary 'folder/filename.jpg' 'description' %} in your post.
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* Change the username in 'user' variable
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* More info:
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* https://cloudinary.com/blog/responsive_images_with_srcset_sizes_and_cloudinary
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*/
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hexo.extend.tag.register('cloudinary', (args) => {
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const user = 'curben'
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let [fileName, alt] = args
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if (!alt) alt = ''
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let modern = ''
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let legacy = ''
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const link = '/img/' + user
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if (fileName.endsWith('.png')) {
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modern = fileName.replace(/\.png$/, '.webp')
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legacy = fileName
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} else if (fileName.endsWith('.webp')) {
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// Statically doesn't support animated webp
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// https://github.com/marsble/statically/issues/36
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// modern = fileName
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modern = fileName.replace(/\.webp$/, '.gif')
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legacy = fileName.replace(/\.webp$/, '.gif')
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} else {
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legacy = fileName
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}
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const modernLink = link + '/' + modern + '?auto_format=false'
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const legacyLink = link + '/' + legacy + '?auto_format=false'
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const img = `<img
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srcset="${legacyLink}&w=320 320w,
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${legacyLink}&w=468 468w,
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${legacyLink}&w=768 768w,
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${legacyLink} 800w"
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sizes="(max-width: 320px) 320px,
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(max-width: 468px) 468px,
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(max-width: 768px) 768px,
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800px"
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src="${legacyLink}"
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alt="${alt}" loading="lazy">`
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if (fileName.endsWith('.png') || fileName.endsWith('.webp')) {
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return `<a href="${legacyLink}">
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<picture>
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<source type="image/webp"
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srcset="${modernLink}&w=320 320w,
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${modernLink}&w=468 468w,
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${modernLink}&w=768 768w,
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${modernLink} 800w"
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sizes="(max-width: 320px) 320px,
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(max-width: 468px) 468px,
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(max-width: 768px) 768px,
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800px">
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${img}
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</picture></a>`
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} else {
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return `<a href="${legacyLink}">${img}</a>`
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}
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})
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