233 lines
6.4 KiB
PHP
233 lines
6.4 KiB
PHP
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<?php
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/**
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* Widget API: WP_Widget_Block class
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*
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* @package WordPress
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* @subpackage Widgets
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* @since 5.8.0
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*/
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/**
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* Core class used to implement a Block widget.
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*
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* @since 5.8.0
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*
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* @see WP_Widget
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*/
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class WP_Widget_Block extends WP_Widget {
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/**
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* Default instance.
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*
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* @since 5.8.0
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* @var array
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*/
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protected $default_instance = array(
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'content' => '',
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);
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/**
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* Sets up a new Block widget instance.
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*
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* @since 5.8.0
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*/
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public function __construct() {
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$widget_ops = array(
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'classname' => 'widget_block',
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'description' => __( 'A widget containing a block.' ),
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'customize_selective_refresh' => true,
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'show_instance_in_rest' => true,
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);
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$control_ops = array(
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'width' => 400,
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'height' => 350,
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);
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parent::__construct( 'block', __( 'Block' ), $widget_ops, $control_ops );
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add_filter( 'is_wide_widget_in_customizer', array( $this, 'set_is_wide_widget_in_customizer' ), 10, 2 );
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}
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/**
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* Outputs the content for the current Block widget instance.
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*
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* @since 5.8.0
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*
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* @param array $args Display arguments including 'before_title', 'after_title',
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* 'before_widget', and 'after_widget'.
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* @param array $instance Settings for the current Block widget instance.
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*/
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public function widget( $args, $instance ) {
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$instance = wp_parse_args( $instance, $this->default_instance );
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echo str_replace(
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'widget_block',
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$this->get_dynamic_classname( $instance['content'] ),
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$args['before_widget']
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);
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/**
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* Filters the content of the Block widget before output.
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*
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* @since 5.8.0
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*
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* @param string $content The widget content.
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* @param array $instance Array of settings for the current widget.
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* @param WP_Widget_Block $widget Current Block widget instance.
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*/
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echo apply_filters(
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'widget_block_content',
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$instance['content'],
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$instance,
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$this
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);
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echo $args['after_widget'];
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}
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/**
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* Calculates the classname to use in the block widget's container HTML.
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*
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* Usually this is set to `$this->widget_options['classname']` by
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* dynamic_sidebar(). In this case, however, we want to set the classname
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* dynamically depending on the block contained by this block widget.
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*
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* If a block widget contains a block that has an equivalent legacy widget,
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* we display that legacy widget's class name. This helps with theme
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* backwards compatibility.
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*
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* @since 5.8.0
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*
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* @param string $content The HTML content of the current block widget.
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* @return string The classname to use in the block widget's container HTML.
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*/
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private function get_dynamic_classname( $content ) {
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$blocks = parse_blocks( $content );
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$block_name = isset( $blocks[0] ) ? $blocks[0]['blockName'] : null;
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switch ( $block_name ) {
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case 'core/paragraph':
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$classname = 'widget_block widget_text';
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break;
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case 'core/calendar':
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$classname = 'widget_block widget_calendar';
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break;
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case 'core/search':
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$classname = 'widget_block widget_search';
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break;
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case 'core/html':
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$classname = 'widget_block widget_custom_html';
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break;
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case 'core/archives':
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$classname = 'widget_block widget_archive';
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break;
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case 'core/latest-posts':
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$classname = 'widget_block widget_recent_entries';
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break;
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case 'core/latest-comments':
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$classname = 'widget_block widget_recent_comments';
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break;
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case 'core/tag-cloud':
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$classname = 'widget_block widget_tag_cloud';
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break;
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case 'core/categories':
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$classname = 'widget_block widget_categories';
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break;
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case 'core/audio':
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$classname = 'widget_block widget_media_audio';
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break;
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case 'core/video':
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$classname = 'widget_block widget_media_video';
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break;
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case 'core/image':
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$classname = 'widget_block widget_media_image';
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break;
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case 'core/gallery':
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$classname = 'widget_block widget_media_gallery';
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break;
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case 'core/rss':
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$classname = 'widget_block widget_rss';
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break;
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default:
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$classname = 'widget_block';
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}
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/**
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* The classname used in the block widget's container HTML.
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*
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* This can be set according to the name of the block contained by the block widget.
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*
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* @since 5.8.0
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*
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* @param string $classname The classname to be used in the block widget's container HTML,
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* e.g. 'widget_block widget_text'.
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* @param string $block_name The name of the block contained by the block widget,
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* e.g. 'core/paragraph'.
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*/
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return apply_filters( 'widget_block_dynamic_classname', $classname, $block_name );
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}
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/**
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* Handles updating settings for the current Block widget instance.
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*
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* @since 5.8.0
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* @param array $new_instance New settings for this instance as input by the user via
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* WP_Widget::form().
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* @param array $old_instance Old settings for this instance.
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* @return array Settings to save or bool false to cancel saving.
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*/
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public function update( $new_instance, $old_instance ) {
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$instance = array_merge( $this->default_instance, $old_instance );
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if ( current_user_can( 'unfiltered_html' ) ) {
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$instance['content'] = $new_instance['content'];
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} else {
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$instance['content'] = wp_kses_post( $new_instance['content'] );
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}
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return $instance;
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}
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/**
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* Outputs the Block widget settings form.
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*
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* @since 5.8.0
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*
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* @see WP_Widget_Custom_HTML::render_control_template_scripts()
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*
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* @param array $instance Current instance.
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*/
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public function form( $instance ) {
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$instance = wp_parse_args( (array) $instance, $this->default_instance );
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?>
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<p>
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<label for="<?php echo $this->get_field_id( 'content' ); ?>">
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<?php
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/* translators: HTML code of the block, not an option that blocks HTML. */
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_e( 'Block HTML:' );
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?>
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</label>
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<textarea id="<?php echo $this->get_field_id( 'content' ); ?>" name="<?php echo $this->get_field_name( 'content' ); ?>" rows="6" cols="50" class="widefat code"><?php echo esc_textarea( $instance['content'] ); ?></textarea>
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</p>
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<?php
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}
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/**
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* Makes sure no block widget is considered to be wide.
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*
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* @since 5.8.0
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*
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* @param bool $is_wide Whether the widget is considered wide.
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* @param string $widget_id Widget ID.
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* @return bool Updated `is_wide` value.
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*/
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public function set_is_wide_widget_in_customizer( $is_wide, $widget_id ) {
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if ( str_starts_with( $widget_id, 'block-' ) ) {
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return false;
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}
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return $is_wide;
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}
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}
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