[wp-trac] [WordPress Trac] #51865: Add filter to `wp_image_src_get_dimensions`

[WordPress Trac]

#51865: Add filter to `wp_image_src_get_dimensions`
-------------------------+-------------------------
 Reporter:  joemcgill    |      Owner:  joemcgill
     Type:  enhancement  |     Status:  assigned
 Priority:  normal       |  Milestone:  5.7
Component:  General      |    Version:
 Severity:  normal       |   Keywords:  needs-patch
  Focuses:               |
-------------------------+-------------------------
 `wp_image_src_get_dimensions()` was added in WordPress 5.5 as a way to
 calculate the `height` and `width` attributes of a content image so that
 WordPress could better support native lazy loading and improve calculation
 of the responsive `sizes` attribute since the block editor often doesn't
 add these attributes to the image markup saved in the editor.

 This function works by comparing the image file from the `src` attribute
 against all of the image sizes available for that attachment, in order to
 find the dimensions. However, if a plugin has modified either the `src`
 file or the attachment meta, this might return a `false`, resulting in the
 full size dimensions to be used when calculating `height`, `width` and
 `sizes` attributes.

 Adding a filter to `wp_image_src_get_dimensions()` would allow developers
 to fix these dimensions when they occur.

 Additionally, the check for `wp_image_file_matches_image_meta()` in
 `wp_image_src_get_dimensions()` can most likely be dropped, since it's
 purpose is largely duplicative of the matching of files to attachment meta
 that is done afterwards.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/51865>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform