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Media: Add two new intermediate image sizes, 1536px and 2048px. They are meant to enhance the way WordPress displays images on the front-end on larger, high-density devices. They make it possible to generate more suitable srcset and sizes attributes, and not use the original, often non-optimized image.

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Also change the default `max_srcset_image_width` value to match the new max size.

Props pierlo, azaozz.
See #43524.
Built from https://develop.svn.wordpress.org/trunk@46066


git-svn-id: http://core.svn.wordpress.org/trunk@45878 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Andrew Ozz 2019-09-05 22:27:58 +00:00
parent 8fe3c3fa23
commit 3b976836a8
3 changed files with 24 additions and 3 deletions
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1
wp-includes/default-filters.php
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@ -519,6 +519,7 @@ add_filter( 'the_content', 'do_shortcode', 11 ); // AFTER wpautop()
// Media
add_action( 'wp_playlist_scripts', 'wp_playlist_scripts' );
add_action( 'customize_controls_enqueue_scripts', 'wp_plupload_default_settings' );
add_action( 'plugins_loaded', '_wp_add_additional_image_sizes', 0 );
// Nav menu
add_filter( 'nav_menu_item_id', '_nav_menu_item_id_use_once', 10, 2 );

24
wp-includes/media.php
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@ -1200,10 +1200,10 @@ function wp_calculate_image_srcset( $size_array, $image_src, $image_meta, $attac
*
* @since 4.4.0
*
* @param int $max_width The maximum image width to be included in the 'srcset'. Default '1600'.
* @param int $max_width The maximum image width to be included in the 'srcset'. Default '2048'.
* @param array $size_array Array of width and height values in pixels (in that order).
*/
$max_srcset_image_width = apply_filters( 'max_srcset_image_width', 1600, $size_array );
$max_srcset_image_width = apply_filters( 'max_srcset_image_width', 2048, $size_array );
// Array to hold URL candidates.
$sources = array();
@ -4329,3 +4329,23 @@ function wp_media_personal_data_exporter( $email_address, $page = 1 ) {
'done' => $done,
);
}
/**
* Add additional default image sub-sizes.
*
* These sizes are meant to enhance the way WordPress displays images on the front-end on larger,
* high-density devices. They make it possible to generate more suitable `srcset` and `sizes` attributes
* when the users upload large images.
*
* The sizes can be changed or removed by themes and plugins but that is not recommended.
* The size "names" reflect the image dimensions, so changing the sizes would be quite misleading.
*
* @since 5.3.0
* @access private
*/
function _wp_add_additional_image_sizes() {
// 2x medium_large size
add_image_size( '1536x1536', 1536, 1536 );
// 2x large size
add_image_size( '2048x2048', 2048, 2048 );
}

2
wp-includes/version.php
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@ -13,7 +13,7 @@
*
* @global string $wp_version
*/
$wp_version = '5.3-alpha-46028';
$wp_version = '5.3-alpha-46066';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.