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Editor: Reintroduce styles that were removed for classic themes.

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After block CSS was merged with `theme.json` styles in [https://github.com/WordPress/gutenberg/pull/34180 Gutenberg PR #34180], this removed some existing, default styling for some elements, including buttons.  This change re-adds the removed styles by enqueueing `classic.css` for classic themes.

Merges [https://github.com/WordPress/gutenberg/pull/44334 Gutenberg PR #44334] into trunk.

Follow-up to [54257].

Props scruffian, oandregal, ramonopoly, aristath, andrewserong, get_dave, bernhard-reiter.
See #56467.
Built from https://develop.svn.wordpress.org/trunk@54358


git-svn-id: http://core.svn.wordpress.org/trunk@53917 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
davidbaumwald
2022-09-29 18:55:10 +00:00
parent 4722fcfca8
commit 143fd4c1f7
3 changed files with 16 additions and 1 deletions
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13
wp-includes/script-loader.php
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@@ -3640,3 +3640,16 @@ function _wp_theme_json_webfonts_handler() {
add_action( 'wp_enqueue_scripts', $fn_generate_and_enqueue_styles );
add_action( 'admin_init', $fn_generate_and_enqueue_editor_styles );
}
/**
* Loads classic theme styles on classic themes.
*
* This is needed for backwards compatibility for button blocks specifically.
*/
function wp_enqueue_classic_theme_styles() {
if ( ! wp_is_block_theme() ) {
$suffix = wp_scripts_get_suffix();
wp_register_style( 'classic-theme-styles', "/wp-includes/css/dist/block-library/classic$suffix.css", array(), true );
wp_enqueue_style( 'classic-theme-styles' );
}
}