_wp_get_iframed_editor_assets

WordPress Version: 6.4

/**
 * Collect the block editor assets that need to be loaded into the editor's iframe.
 *
 * @since 6.0.0
 * @access private
 *
 * @global WP_Styles  $wp_styles  The WP_Styles current instance.
 * @global WP_Scripts $wp_scripts The WP_Scripts current instance.
 *
 * @return array {
 *     The block editor assets.
 *
 *     @type string|false $styles  String containing the HTML for styles.
 *     @type string|false $scripts String containing the HTML for scripts.
 * }
 */
function _wp_get_iframed_editor_assets()
{
    global $wp_styles, $wp_scripts;
    // Keep track of the styles and scripts instance to restore later.
    $current_wp_styles = $wp_styles;
    $current_wp_scripts = $wp_scripts;
    // Create new instances to collect the assets.
    $wp_styles = new WP_Styles();
    $wp_scripts = new WP_Scripts();
    /*
     * Register all currently registered styles and scripts. The actions that
     * follow enqueue assets, but don't necessarily register them.
     */
    $wp_styles->registered = $current_wp_styles->registered;
    $wp_scripts->registered = $current_wp_scripts->registered;
    /*
     * We generally do not need reset styles for the iframed editor.
     * However, if it's a classic theme, margins will be added to every block,
     * which is reset specifically for list items, so classic themes rely on
     * these reset styles.
     */
    $wp_styles->done = wp_theme_has_theme_json() ? array('wp-reset-editor-styles') : array();
    wp_enqueue_script('wp-polyfill');
    // Enqueue the `editorStyle` handles for all core block, and dependencies.
    wp_enqueue_style('wp-edit-blocks');
    if (current_theme_supports('wp-block-styles')) {
        wp_enqueue_style('wp-block-library-theme');
    }
    /*
     * We don't want to load EDITOR scripts in the iframe, only enqueue
     * front-end assets for the content.
     */
    add_filter('should_load_block_editor_scripts_and_styles', '__return_false');
    do_action('enqueue_block_assets');
    remove_filter('should_load_block_editor_scripts_and_styles', '__return_false');
    $block_registry = WP_Block_Type_Registry::get_instance();
    /*
     * Additionally, do enqueue `editorStyle` assets for all blocks, which
     * contains editor-only styling for blocks (editor content).
     */
    foreach ($block_registry->get_all_registered() as $block_type) {
        if (isset($block_type->editor_style_handles) && is_array($block_type->editor_style_handles)) {
            foreach ($block_type->editor_style_handles as $style_handle) {
                wp_enqueue_style($style_handle);
            }
        }
    }
    /**
     * Remove the deprecated `print_emoji_styles` handler.
     * It avoids breaking style generation with a deprecation message.
     */
    $has_emoji_styles = has_action('wp_print_styles', 'print_emoji_styles');
    if ($has_emoji_styles) {
        remove_action('wp_print_styles', 'print_emoji_styles');
    }
    ob_start();
    wp_print_styles();
    wp_print_font_faces();
    $styles = ob_get_clean();
    if ($has_emoji_styles) {
        add_action('wp_print_styles', 'print_emoji_styles');
    }
    ob_start();
    wp_print_head_scripts();
    wp_print_footer_scripts();
    $scripts = ob_get_clean();
    // Restore the original instances.
    $wp_styles = $current_wp_styles;
    $wp_scripts = $current_wp_scripts;
    return array('styles' => $styles, 'scripts' => $scripts);
}

WordPress Version: 6.3

/**
 * Collect the block editor assets that need to be loaded into the editor's iframe.
 *
 * @since 6.0.0
 * @access private
 *
 * @global string     $pagenow    The filename of the current screen.
 * @global WP_Styles  $wp_styles  The WP_Styles current instance.
 * @global WP_Scripts $wp_scripts The WP_Scripts current instance.
 *
 * @return array {
 *     The block editor assets.
 *
 *     @type string|false $styles  String containing the HTML for styles.
 *     @type string|false $scripts String containing the HTML for scripts.
 * }
 */
function _wp_get_iframed_editor_assets()
{
    global $wp_styles, $wp_scripts, $pagenow;
    // Keep track of the styles and scripts instance to restore later.
    $current_wp_styles = $wp_styles;
    $current_wp_scripts = $wp_scripts;
    // Create new instances to collect the assets.
    $wp_styles = new WP_Styles();
    $wp_scripts = new WP_Scripts();
    /*
     * Register all currently registered styles and scripts. The actions that
     * follow enqueue assets, but don't necessarily register them.
     */
    $wp_styles->registered = $current_wp_styles->registered;
    $wp_scripts->registered = $current_wp_scripts->registered;
    /*
     * We generally do not need reset styles for the iframed editor.
     * However, if it's a classic theme, margins will be added to every block,
     * which is reset specifically for list items, so classic themes rely on
     * these reset styles.
     */
    $wp_styles->done = wp_theme_has_theme_json() ? array('wp-reset-editor-styles') : array();
    wp_enqueue_script('wp-polyfill');
    // Enqueue the `editorStyle` handles for all core block, and dependencies.
    wp_enqueue_style('wp-edit-blocks');
    if ('site-editor.php' === $pagenow) {
        wp_enqueue_style('wp-edit-site');
    }
    if (current_theme_supports('wp-block-styles')) {
        wp_enqueue_style('wp-block-library-theme');
    }
    /*
     * We don't want to load EDITOR scripts in the iframe, only enqueue
     * front-end assets for the content.
     */
    add_filter('should_load_block_editor_scripts_and_styles', '__return_false');
    do_action('enqueue_block_assets');
    remove_filter('should_load_block_editor_scripts_and_styles', '__return_false');
    $block_registry = WP_Block_Type_Registry::get_instance();
    /*
     * Additionally, do enqueue `editorStyle` assets for all blocks, which
     * contains editor-only styling for blocks (editor content).
     */
    foreach ($block_registry->get_all_registered() as $block_type) {
        if (isset($block_type->editor_style_handles) && is_array($block_type->editor_style_handles)) {
            foreach ($block_type->editor_style_handles as $style_handle) {
                wp_enqueue_style($style_handle);
            }
        }
    }
    ob_start();
    wp_print_styles();
    $styles = ob_get_clean();
    ob_start();
    wp_print_head_scripts();
    wp_print_footer_scripts();
    $scripts = ob_get_clean();
    // Restore the original instances.
    $wp_styles = $current_wp_styles;
    $wp_scripts = $current_wp_scripts;
    return array('styles' => $styles, 'scripts' => $scripts);
}

WordPress Version: 6.2

/**
 * Collect the block editor assets that need to be loaded into the editor's iframe.
 *
 * @since 6.0.0
 * @access private
 *
 * @global string $pagenow The filename of the current screen.
 *
 * @return array {
 *     The block editor assets.
 *
 *     @type string|false $styles  String containing the HTML for styles.
 *     @type string|false $scripts String containing the HTML for scripts.
 * }
 */
function _wp_get_iframed_editor_assets()
{
    global $pagenow, $editor_styles;
    $script_handles = array('wp-polyfill');
    $style_handles = array('wp-edit-blocks');
    if (current_theme_supports('wp-block-styles') && (!is_array($editor_styles) || count($editor_styles) === 0)) {
        $style_handles[] = 'wp-block-library-theme';
    }
    if ('widgets.php' === $pagenow || 'customize.php' === $pagenow) {
        $style_handles[] = 'wp-widgets';
        $style_handles[] = 'wp-edit-widgets';
    }
    $block_registry = WP_Block_Type_Registry::get_instance();
    foreach ($block_registry->get_all_registered() as $block_type) {
        $style_handles = array_merge($style_handles, $block_type->style_handles, $block_type->editor_style_handles);
        $script_handles = array_merge($script_handles, $block_type->script_handles);
    }
    $style_handles = array_unique($style_handles);
    $done = wp_styles()->done;
    ob_start();
    // We do not need reset styles for the iframed editor.
    wp_styles()->done = array('wp-reset-editor-styles');
    wp_styles()->do_items($style_handles);
    wp_styles()->done = $done;
    $styles = ob_get_clean();
    $script_handles = array_unique($script_handles);
    $done = wp_scripts()->done;
    ob_start();
    wp_scripts()->done = array();
    wp_scripts()->do_items($script_handles);
    wp_scripts()->done = $done;
    $scripts = ob_get_clean();
    return array('styles' => $styles, 'scripts' => $scripts);
}

WordPress Version: 6.1

/**
 * Collect the block editor assets that need to be loaded into the editor's iframe.
 *
 * @since 6.0.0
 * @access private
 *
 * @global string $pagenow The filename of the current screen.
 *
 * @return array {
 *     The block editor assets.
 *
 *     @type string|false $styles  String containing the HTML for styles.
 *     @type string|false $scripts String containing the HTML for scripts.
 * }
 */
function _wp_get_iframed_editor_assets()
{
    global $pagenow;
    $script_handles = array();
    $style_handles = array('wp-block-editor', 'wp-block-library', 'wp-edit-blocks');
    if (current_theme_supports('wp-block-styles')) {
        $style_handles[] = 'wp-block-library-theme';
    }
    if ('widgets.php' === $pagenow || 'customize.php' === $pagenow) {
        $style_handles[] = 'wp-widgets';
        $style_handles[] = 'wp-edit-widgets';
    }
    $block_registry = WP_Block_Type_Registry::get_instance();
    foreach ($block_registry->get_all_registered() as $block_type) {
        $style_handles = array_merge($style_handles, $block_type->style_handles, $block_type->editor_style_handles);
        $script_handles = array_merge($script_handles, $block_type->script_handles);
    }
    $style_handles = array_unique($style_handles);
    $done = wp_styles()->done;
    ob_start();
    // We do not need reset styles for the iframed editor.
    wp_styles()->done = array('wp-reset-editor-styles');
    wp_styles()->do_items($style_handles);
    wp_styles()->done = $done;
    $styles = ob_get_clean();
    $script_handles = array_unique($script_handles);
    $done = wp_scripts()->done;
    ob_start();
    wp_scripts()->done = array();
    wp_scripts()->do_items($script_handles);
    wp_scripts()->done = $done;
    $scripts = ob_get_clean();
    return array('styles' => $styles, 'scripts' => $scripts);
}