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Description

Loads classic theme styles on classic themes in the editor.

This is needed for backwards compatibility for button blocks specifically.

Usage

$array = wp_add_editor_classic_theme_styles( $editor_settings );

Parameters

$editor_settings

( array ) required – The array of editor settings.

Returns

array A filtered array of editor settings.

Source

File name: wordpress/wp-includes/script-loader.php
Lines:

function wp_add_editor_classic_theme_styles( $editor_settings ) {
  if ( WP_Theme_JSON_Resolver::theme_has_support() ) {
    return $editor_settings;
  }
  $suffix = wp_scripts_get_suffix();
  $classic_theme_styles = ABSPATH . WPINC . "/css/classic-themes$suffix.css";

  // This follows the pattern of get_block_editor_theme_styles,
  // but we can't use get_block_editor_theme_styles directly as it
  // only handles external files or theme files.
  $classic_theme_styles_settings = array(
    'css'            => file_get_contents( $classic_theme_styles ),
    '__unstableType' => 'core',
    'isGlobalStyles' => false,
  );

  // Add these settings to the start of the array so that themes can override them.
  array_unshift( $editor_settings['styles'], $classic_theme_styles_settings );

  return $editor_settings;
}
 

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