34 lines
1.2 KiB
PHP
34 lines
1.2 KiB
PHP
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<?php
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namespace WebPExpress;
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use \WebPExpress\AlterHtmlInit;
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use \WebPExpress\Paths;
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/**
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* Class AlterHtmlImageUrls - convert image urls to webp
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* Based this code on code from the Cache Enabler plugin
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*/
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use \WebPExpress\AlterHtmlHelper;
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//use \WebPExpress\ImageUrlsReplacer;
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use DOMUtilForWebP\ImageUrlReplacer;
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class AlterHtmlImageUrls extends ImageUrlReplacer
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{
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public function replaceUrl($url) {
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return AlterHtmlHelper::getWebPUrl($url, null);
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}
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public function attributeFilter($attrName) {
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// Allow "src", "srcset" and data-attributes that smells like they are used for images
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// The following rule matches all attributes used for lazy loading images that we know of
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return preg_match('#^(src|srcset|poster|(data-[^=]*(lazy|small|slide|img|large|src|thumb|source|set|bg-url)[^=]*))$#i', $attrName);
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// If you want to limit it further, only allowing attributes known to be used for lazy load,
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// use the following regex instead:
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//return preg_match('#^(src|srcset|data-(src|srcset|cvpsrc|cvpset|thumb|bg-url|large_image|lazyload|source-url|srcsmall|srclarge|srcfull|slide-img|lazy-original))$#i', $attrName);
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}
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}
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