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Code Issues Releases Wiki Activity

refactor: replace 'image' tag plugin with marked:renderer filter plugin

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curben 2019-12-26 06:14:26 +00:00
parent 4620bfe915
commit 8e421b9202
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1 changed files with 48 additions and 47 deletions
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95
themes/chameleon/scripts/image.js
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@ -6,58 +6,59 @@
* https://developer.mozilla.org/en-US/docs/Learn/HTML/Multimedia_and_embedding/Responsive_images
* Image is resized on-the-fly using Statically Imgpx
* https://statically.io/imgpx
* Usage: {% image 'folder/filename.jpg' 'description' %}
* Usage: ![alt](/path/to/img "title")
*/
hexo.extend.tag.register('image', (args) => {
let [fileName, alt] = args
if (!alt) alt = ''
let modern = fileName
let legacy = fileName
// /img/ is a reverse proxy of Statically CDN
// See source/_redirects
const link = '/img/'
hexo.extend.filter.register('marked:renderer', (renderer) => {
renderer.image = (href, title, alt) => {
if (!alt) alt = ''
if (!title) title = alt
let modern = href
let legacy = href
// /img/ is a reverse proxy to Statically CDN
// See source/_redirects
const link = '/img/'
if (fileName.endsWith('.png') || fileName.endsWith('.jpg')) {
modern = fileName.concat('?format=webp')
} else if (fileName.endsWith('.webp')) {
// Statically has yet to support animated webp
// https://github.com/marsble/statically/issues/36
// modern = fileName.concat('?auto_format=false')
modern = fileName.replace(/\.webp$/, '.gif')
legacy = fileName.replace(/\.webp$/, '.gif')
}
if (href.endsWith('.png') || href.endsWith('.jpg')) {
modern = href.concat('?format=webp')
} else if (href.endsWith('.webp')) {
// Statically has yet to support animated webp
// https://github.com/marsble/statically/issues/36
// modern = href.concat('?auto_format=false')
modern = href.replace(/\.webp$/, '.gif')
legacy = href.replace(/\.webp$/, '.gif')
}
const modernLink = link + modern
const legacyLink = link + legacy
const modernLink = link + modern
const legacyLink = link + legacy
const img = `<img
srcset="${legacyLink}&w=320 320w,
${legacyLink}&w=468 468w,
${legacyLink}&w=768 768w,
${legacyLink} 800w"
sizes="(max-width: 320px) 320px,
(max-width: 468px) 468px,
(max-width: 768px) 768px,
800px"
src="${legacyLink}"
alt="${alt}" loading="lazy">`
const img = `<img srcset="${legacyLink}&w=320 320w,` +
`${legacyLink}&w=468 468w,` +
`${legacyLink}&w=768 768w,` +
`${legacyLink} 800w"` +
' sizes="(max-width: 320px) 320px,' +
'(max-width: 468px) 468px,' +
'(max-width: 768px) 768px,' +
'800px"' +
` src="${legacyLink}"` +
` title="${title}" alt="${alt}" loading="lazy">`
if (fileName.endsWith('.png') || fileName.endsWith('.webp')) {
return `<a href="${legacyLink}">
<picture>
<source type="image/webp"
srcset="${modernLink}&w=320 320w,
${modernLink}&w=468 468w,
${modernLink}&w=768 768w,
${modernLink} 800w"
sizes="(max-width: 320px) 320px,
(max-width: 468px) 468px,
(max-width: 768px) 768px,
800px">
${img}
</picture></a>`
} else {
return `<a href="${legacyLink}">${img}</a>`
if (href.endsWith('.png') || href.endsWith('.webp')) {
return `<a href="${legacyLink}">` +
'<picture>' +
'<source type="image/webp"' +
` srcset="${modernLink}&w=320 320w,` +
`${modernLink}&w=468 468w,` +
`${modernLink}&w=768 768w,` +
`${modernLink} 800w"` +
' sizes="(max-width: 320px) 320px,' +
'(max-width: 468px) 468px,' +
'(max-width: 768px) 768px,' +
'800px">' +
`${img}` +
'</picture></a>'
} else {
return `<a href="${legacyLink}">${img}</a>`
}
}
})