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Responsive images: do not generate srcset for GIFs that are inserted at full size. Prevents breaking animated GIFs.

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Props joemcgill.
Fixes #34528.

git-svn-id: https://develop.svn.wordpress.org/trunk@35524 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Andrew Ozz
2015-11-04 21:43:44 +00:00
parent 89227eebe3
commit 611ddaf9bf
2 changed files with 46 additions and 0 deletions
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src/wp-includes/media.php
+7
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@@ -983,6 +983,13 @@ function wp_calculate_image_srcset( $image_src, $size_array, $image_meta, $attac
return false;
}
// Don't add srcset attributes to (animated) gifs that are inserted at full size.
if ( isset( $image_sizes['thumbnail']['mime-type'] ) && 'image/gif' === $image_sizes['thumbnail']['mime-type'] &&
false !== strpos( $image_src, $image_meta['file'] ) ) {
return false;
}
$image_basename = wp_basename( $image_meta['file'] );
$image_baseurl = _wp_upload_dir_baseurl();