[wp-trac] [WordPress Trac] #50367: Avoid layout shifting due to images not having dimension attributes

[WordPress Trac]

#50367: Avoid layout shifting due to images not having dimension attributes
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 Reporter:  flixos90                             |       Owner:  flixos90
     Type:  defect (bug)                         |      Status:  reopened
 Priority:  normal                               |   Milestone:  5.5
Component:  Media                                |     Version:
 Severity:  normal                               |  Resolution:
 Keywords:  needs-testing has-patch has-unit-    |     Focuses:
  tests needs-dev-note                           |
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Comment (by flixos90):

 @joemcgill @azaozz I've updated the PR to introduce a new function
 `wp_img_tag_add_width_and_height_attr()` which on a high level behaves
 similarly like `wp_img_tag_add_srcset_and_sizes_attr()` and
 `wp_img_tag_add_loading_attr()`. The part that is now common for
 `wp_img_tag_add_width_and_height_attr()` and
 `wp_img_tag_add_srcset_and_sizes_attr()` I've moved into a new utility
 function `wp_image_src_get_dimensions()` - in actual usage and the way the
 functions are run subsequently in most cases that function will only be
 called once. If `width` and `height` attributes are not present, they will
 be added by `wp_img_tag_add_srcset_and_sizes_attr()`, this way the
 functionality doesn't need to run again as part of
 `wp_img_tag_add_srcset_and_sizes_attr()`.

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Ticket URL: <https://core.trac.wordpress.org/ticket/50367#comment:20>
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