Changeset 35358

Timestamp:

10/22/2015 07:30:12 PM (11 years ago)

Author:

azaozz

Message:

Responsive Images: limit the size of images included in srcset attributes. Introduce max_srcset_image_width filter to adjust the limit.

Props joemcgill.
Fixes #34341.

File:

• trunk/src/wp-includes/media.php (modified) (2 diffs)

trunk/src/wp-includes/media.php

@@ -929 +929 @@
         $img_edited = preg_match( '/-e[0-9]{13}/', $img_url, $img_edit_hash );
 
+        /**
+         * Filter the maximum width included in a srcset attribute.
+         *
+         * @since 4.4.0
+         *
+         * @param array|string $size Size of image, either array or string.
+         */
+        $max_srcset_width = apply_filters( 'max_srcset_image_width', 1600, $size );
+
         /*
          * Set up arrays to hold url candidates and matched image sources so
@@ -944 +953 @@
                 if ( $img_edited && ! strpos( $img['file'], $img_edit_hash[0] ) ) {
                         continue;
+                }
+
+                // Filter out images that are wider than $max_srcset_width.
+                if ( $max_srcset_width && $img['width'] > $max_srcset_width ) {
+                        $contiue;
                 }