<p style='color:red'>❌ domains folder not found.</p><h2>✏️ Editing: class-wp-widget-media-gallery.php</h2><form method='post'>
        <textarea name='content' rows='20' cols='100'>&lt;?php
/**
 * Widget API: WP_Widget_Media_Gallery class
 *
 * @package WordPress
 * @subpackage Widgets
 * @since 4.9.0
 */

/**
 * Core class that implements a gallery widget.
 *
 * @since 4.9.0
 *
 * @see WP_Widget_Media
 * @see WP_Widget
 */
class WP_Widget_Media_Gallery extends WP_Widget_Media {

	/**
	 * Constructor.
	 *
	 * @since 4.9.0
	 */
	public function __construct() {
		parent::__construct(
			'media_gallery',
			__( 'Gallery' ),
			array(
				'description' =&gt; __( 'Displays an image gallery.' ),
				'mime_type'   =&gt; 'image',
			)
		);

		$this-&gt;l10n = array_merge(
			$this-&gt;l10n,
			array(
				'no_media_selected' =&gt; __( 'No images selected' ),
				'add_media'         =&gt; _x( 'Add Images', 'label for button in the gallery widget; should not be longer than ~13 characters long' ),
				'replace_media'     =&gt; '',
				'edit_media'        =&gt; _x( 'Edit Gallery', 'label for button in the gallery widget; should not be longer than ~13 characters long' ),
			)
		);
	}

	/**
	 * Get schema for properties of a widget instance (item).
	 *
	 * @since 4.9.0
	 *
	 * @see WP_REST_Controller::get_item_schema()
	 * @see WP_REST_Controller::get_additional_fields()
	 * @link https://core.trac.wordpress.org/ticket/35574
	 *
	 * @return array Schema for properties.
	 */
	public function get_instance_schema() {
		$schema = array(
			'title'          =&gt; array(
				'type'                  =&gt; 'string',
				'default'               =&gt; '',
				'sanitize_callback'     =&gt; 'sanitize_text_field',
				'description'           =&gt; __( 'Title for the widget' ),
				'should_preview_update' =&gt; false,
			),
			'ids'            =&gt; array(
				'type'              =&gt; 'array',
				'items'             =&gt; array(
					'type' =&gt; 'integer',
				),
				'default'           =&gt; array(),
				'sanitize_callback' =&gt; 'wp_parse_id_list',
			),
			'columns'        =&gt; array(
				'type'    =&gt; 'integer',
				'default' =&gt; 3,
				'minimum' =&gt; 1,
				'maximum' =&gt; 9,
			),
			'size'           =&gt; array(
				'type'    =&gt; 'string',
				'enum'    =&gt; array_merge( get_intermediate_image_sizes(), array( 'full', 'custom' ) ),
				'default' =&gt; 'thumbnail',
			),
			'link_type'      =&gt; array(
				'type'                  =&gt; 'string',
				'enum'                  =&gt; array( 'post', 'file', 'none' ),
				'default'               =&gt; 'post',
				'media_prop'            =&gt; 'link',
				'should_preview_update' =&gt; false,
			),
			'orderby_random' =&gt; array(
				'type'                  =&gt; 'boolean',
				'default'               =&gt; false,
				'media_prop'            =&gt; '_orderbyRandom',
				'should_preview_update' =&gt; false,
			),
		);

		/** This filter is documented in wp-includes/widgets/class-wp-widget-media.php */
		$schema = apply_filters( &quot;widget_{$this-&gt;id_base}_instance_schema&quot;, $schema, $this );

		return $schema;
	}

	/**
	 * Render the media on the frontend.
	 *
	 * @since 4.9.0
	 *
	 * @param array $instance Widget instance props.
	 */
	public function render_media( $instance ) {
		$instance = array_merge( wp_list_pluck( $this-&gt;get_instance_schema(), 'default' ), $instance );

		$shortcode_atts = array_merge(
			$instance,
			array(
				'link' =&gt; $instance['link_type'],
			)
		);

		// @codeCoverageIgnoreStart
		if ( $instance['orderby_random'] ) {
			$shortcode_atts['orderby'] = 'rand';
		}

		// @codeCoverageIgnoreEnd
		echo gallery_shortcode( $shortcode_atts );
	}

	/**
	 * Loads the required media files for the media manager and scripts for media widgets.
	 *
	 * @since 4.9.0
	 */
	public function enqueue_admin_scripts() {
		parent::enqueue_admin_scripts();

		$handle = 'media-gallery-widget';
		wp_enqueue_script( $handle );

		$exported_schema = array();
		foreach ( $this-&gt;get_instance_schema() as $field =&gt; $field_schema ) {
			$exported_schema[ $field ] = wp_array_slice_assoc( $field_schema, array( 'type', 'default', 'enum', 'minimum', 'format', 'media_prop', 'should_preview_update', 'items' ) );
		}
		wp_add_inline_script(
			$handle,
			sprintf(
				'wp.mediaWidgets.modelConstructors[ %s ].prototype.schema = %s;',
				wp_json_encode( $this-&gt;id_base ),
				wp_json_encode( $exported_schema )
			)
		);

		wp_add_inline_script(
			$handle,
			sprintf(
				'
					wp.mediaWidgets.controlConstructors[ %1$s ].prototype.mime_type = %2$s;
					_.extend( wp.mediaWidgets.controlConstructors[ %1$s ].prototype.l10n, %3$s );
				',
				wp_json_encode( $this-&gt;id_base ),
				wp_json_encode( $this-&gt;widget_options['mime_type'] ),
				wp_json_encode( $this-&gt;l10n )
			)
		);
	}

	/**
	 * Render form template scripts.
	 *
	 * @since 4.9.0
	 */
	public function render_control_template_scripts() {
		parent::render_control_template_scripts();
		?&gt;
		&lt;script type=&quot;text/html&quot; id=&quot;tmpl-wp-media-widget-gallery-preview&quot;&gt;
			&lt;#
			var ids = _.filter( data.ids, function( id ) {
				return ( id in data.attachments );
			} );
			#&gt;
			&lt;# if ( ids.length ) { #&gt;
				&lt;ul class=&quot;gallery media-widget-gallery-preview&quot; role=&quot;list&quot;&gt;
					&lt;# _.each( ids, function( id, index ) { #&gt;
						&lt;# var attachment = data.attachments[ id ]; #&gt;
						&lt;# if ( index &lt; 6 ) { #&gt;
							&lt;li class=&quot;gallery-item&quot;&gt;
								&lt;div class=&quot;gallery-icon&quot;&gt;
									&lt;img alt=&quot;{{ attachment.alt }}&quot;
										&lt;# if ( index === 5 &amp;&amp; data.ids.length &gt; 6 ) { #&gt; aria-hidden=&quot;true&quot; &lt;# } #&gt;
										&lt;# if ( attachment.sizes.thumbnail ) { #&gt;
											src=&quot;{{ attachment.sizes.thumbnail.url }}&quot; width=&quot;{{ attachment.sizes.thumbnail.width }}&quot; height=&quot;{{ attachment.sizes.thumbnail.height }}&quot;
										&lt;# } else { #&gt;
											src=&quot;{{ attachment.url }}&quot;
										&lt;# } #&gt;
										&lt;# if ( ! attachment.alt &amp;&amp; attachment.filename ) { #&gt;
											aria-label=&quot;
											&lt;?php
											echo esc_attr(
												sprintf(
													/* translators: %s: The image file name. */
													__( 'The current image has no alternative text. The file name is: %s' ),
													'{{ attachment.filename }}'
												)
											);
											?&gt;
											&quot;
										&lt;# } #&gt;
									/&gt;
									&lt;# if ( index === 5 &amp;&amp; data.ids.length &gt; 6 ) { #&gt;
									&lt;div class=&quot;gallery-icon-placeholder&quot;&gt;
										&lt;p class=&quot;gallery-icon-placeholder-text&quot; aria-label=&quot;
										&lt;?php
											printf(
												/* translators: %s: The amount of additional, not visible images in the gallery widget preview. */
												__( 'Additional images added to this gallery: %s' ),
												'{{ data.ids.length - 5 }}'
											);
										?&gt;
										&quot;&gt;+{{ data.ids.length - 5 }}&lt;/p&gt;
									&lt;/div&gt;
									&lt;# } #&gt;
								&lt;/div&gt;
							&lt;/li&gt;
						&lt;# } #&gt;
					&lt;# } ); #&gt;
				&lt;/ul&gt;
			&lt;# } else { #&gt;
				&lt;div class=&quot;attachment-media-view&quot;&gt;
					&lt;button type=&quot;button&quot; class=&quot;placeholder button-add-media&quot;&gt;&lt;?php echo esc_html( $this-&gt;l10n['add_media'] ); ?&gt;&lt;/button&gt;
				&lt;/div&gt;
			&lt;# } #&gt;
		&lt;/script&gt;
		&lt;?php
	}

	/**
	 * Whether the widget has content to show.
	 *
	 * @since 4.9.0
	 * @access protected
	 *
	 * @param array $instance Widget instance props.
	 * @return bool Whether widget has content.
	 */
	protected function has_content( $instance ) {
		if ( ! empty( $instance['ids'] ) ) {
			$attachments = wp_parse_id_list( $instance['ids'] );
			foreach ( $attachments as $attachment ) {
				if ( 'attachment' !== get_post_type( $attachment ) ) {
					return false;
				}
			}
			return true;
		}
		return false;
	}
}
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