Media: Introduce filters to customize the results from wp_get_loading_optimization_attributes().

This changeset introduces two filters that allow customizing the loading optimization attributes array returned from `wp_get_loading_optimization_attributes()` for individual HTML tags:
* The `wp_get_loading_optimization_attributes` filter can be used to modify the results from the WordPress core logic.
* The `pre_wp_get_loading_optimization_attributes` filter can be used to use entirely custom logic and effectively short-circuit the core function.

Props pereirinha, mukesh27, spacedmonkey, joemcgill.
Fixes #58893.

Built from https://develop.svn.wordpress.org/trunk@56651


git-svn-id: http://core.svn.wordpress.org/trunk@56163 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Felix Arntz 2023-09-21 16:38:15 +00:00
parent c4c54f035c
commit cd11ddbac1
2 changed files with 39 additions and 6 deletions

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@ -5625,6 +5625,25 @@ function wp_get_webp_info( $filename ) {
function wp_get_loading_optimization_attributes( $tag_name, $attr, $context ) {
global $wp_query;
/**
* Filters whether to short-circuit loading optimization attributes.
*
* Returning an array from the filter will effectively short-circuit the loading of optimization attributes,
* returning that value instead.
*
* @since 6.4.0
*
* @param array|false $loading_attrs False by default, or array of loading optimization attributes to short-circuit.
* @param string $tag_name The tag name.
* @param array $attr Array of the attributes for the tag.
* @param string $context Context for the element for which the loading optimization attribute is requested.
*/
$loading_attrs = apply_filters( 'pre_wp_get_loading_optimization_attributes', false, $tag_name, $attr, $context );
if ( is_array( $loading_attrs ) ) {
return $loading_attrs;
}
$loading_attrs = array();
/*
@ -5632,17 +5651,20 @@ function wp_get_loading_optimization_attributes( $tag_name, $attr, $context ) {
* The skip is also applicable for `fetchpriority`.
*/
if ( 'template' === $context ) {
return $loading_attrs;
/** This filter is documented in wp-includes/media.php */
return apply_filters( 'wp_get_loading_optimization_attributes', $loading_attrs, $tag_name, $attr, $context );
}
// For now this function only supports images and iframes.
if ( 'img' !== $tag_name && 'iframe' !== $tag_name ) {
return $loading_attrs;
/** This filter is documented in wp-includes/media.php */
return apply_filters( 'wp_get_loading_optimization_attributes', $loading_attrs, $tag_name, $attr, $context );
}
// For any resources, width and height must be provided, to avoid layout shifts.
if ( ! isset( $attr['width'], $attr['height'] ) ) {
return $loading_attrs;
/** This filter is documented in wp-includes/media.php */
return apply_filters( 'wp_get_loading_optimization_attributes', $loading_attrs, $tag_name, $attr, $context );
}
/*
@ -5654,7 +5676,8 @@ function wp_get_loading_optimization_attributes( $tag_name, $attr, $context ) {
*/
// TODO: Handle shortcode images together with the content (see https://core.trac.wordpress.org/ticket/58853).
if ( 'the_content' !== $context && 'do_shortcode' !== $context && doing_filter( 'the_content' ) ) {
return $loading_attrs;
/** This filter is documented in wp-includes/media.php */
return apply_filters( 'wp_get_loading_optimization_attributes', $loading_attrs, $tag_name, $attr, $context );
}
/*
@ -5789,7 +5812,17 @@ function wp_get_loading_optimization_attributes( $tag_name, $attr, $context ) {
}
}
return $loading_attrs;
/**
* Filters the loading optimization attributes.
*
* @since 6.4.0
*
* @param array $loading_attrs The loading optimization attributes.
* @param string $tag_name The tag name.
* @param array $attr Array of the attributes for the tag.
* @param string $context Context for the element for which the loading optimization attribute is requested.
*/
return apply_filters( 'wp_get_loading_optimization_attributes', $loading_attrs, $tag_name, $attr, $context );
}
/**

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@ -16,7 +16,7 @@
*
* @global string $wp_version
*/
$wp_version = '6.4-alpha-56650';
$wp_version = '6.4-alpha-56651';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.