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class-wp-widget-media-audio.php (6084B)

---

 <?php
 /**
  * Widget API: WP_Widget_Media_Audio class
  *
  * @package WordPress
  * @subpackage Widgets
  * @since 4.8.0
  */
 
 /**
  * Core class that implements an audio widget.
  *
  * @since 4.8.0
  *
  * @see WP_Widget_Media
  * @see WP_Widget
  */
 class WP_Widget_Media_Audio extends WP_Widget_Media {
 
 	/**
 	 * Constructor.
 	 *
 	 * @since 4.8.0
 	 */
 	public function __construct() {
 		parent::__construct(
 			'media_audio',
 			__( 'Audio' ),
 			array(
 				'description' => __( 'Displays an audio player.' ),
 				'mime_type'   => 'audio',
 			)
 		);
 
 		$this->l10n = array_merge(
 			$this->l10n,
 			array(
 				'no_media_selected'          => __( 'No audio selected' ),
 				'add_media'                  => _x( 'Add Audio', 'label for button in the audio widget' ),
 				'replace_media'              => _x( 'Replace Audio', 'label for button in the audio widget; should preferably not be longer than ~13 characters long' ),
 				'edit_media'                 => _x( 'Edit Audio', 'label for button in the audio widget; should preferably not be longer than ~13 characters long' ),
 				'missing_attachment'         => sprintf(
 					/* translators: %s: URL to media library. */
 					__( 'We can&#8217;t find that audio file. Check your <a href="%s">media library</a> and make sure it wasn&#8217;t deleted.' ),
 					esc_url( admin_url( 'upload.php' ) )
 				),
 				/* translators: %d: Widget count. */
 				'media_library_state_multi'  => _n_noop( 'Audio Widget (%d)', 'Audio Widget (%d)' ),
 				'media_library_state_single' => __( 'Audio Widget' ),
 				'unsupported_file_type'      => __( 'Looks like this isn&#8217;t the correct kind of file. Please link to an audio file instead.' ),
 			)
 		);
 	}
 
 	/**
 	 * Get schema for properties of a widget instance (item).
 	 *
 	 * @since 4.8.0
 	 *
 	 * @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(
 			'preload' => array(
 				'type'        => 'string',
 				'enum'        => array( 'none', 'auto', 'metadata' ),
 				'default'     => 'none',
 				'description' => __( 'Preload' ),
 			),
 			'loop'    => array(
 				'type'        => 'boolean',
 				'default'     => false,
 				'description' => __( 'Loop' ),
 			),
 		);
 
 		foreach ( wp_get_audio_extensions() as $audio_extension ) {
 			$schema[ $audio_extension ] = array(
 				'type'        => 'string',
 				'default'     => '',
 				'format'      => 'uri',
 				/* translators: %s: Audio extension. */
 				'description' => sprintf( __( 'URL to the %s audio source file' ), $audio_extension ),
 			);
 		}
 
 		return array_merge( $schema, parent::get_instance_schema() );
 	}
 
 	/**
 	 * Render the media on the frontend.
 	 *
 	 * @since 4.8.0
 	 *
 	 * @param array $instance Widget instance props.
 	 */
 	public function render_media( $instance ) {
 		$instance   = array_merge( wp_list_pluck( $this->get_instance_schema(), 'default' ), $instance );
 		$attachment = null;
 
 		if ( $this->is_attachment_with_mime_type( $instance['attachment_id'], $this->widget_options['mime_type'] ) ) {
 			$attachment = get_post( $instance['attachment_id'] );
 		}
 
 		if ( $attachment ) {
 			$src = wp_get_attachment_url( $attachment->ID );
 		} else {
 			$src = $instance['url'];
 		}
 
 		echo wp_audio_shortcode(
 			array_merge(
 				$instance,
 				compact( 'src' )
 			)
 		);
 	}
 
 	/**
 	 * Enqueue preview scripts.
 	 *
 	 * These scripts normally are enqueued just-in-time when an audio shortcode is used.
 	 * In the customizer, however, widgets can be dynamically added and rendered via
 	 * selective refresh, and so it is important to unconditionally enqueue them in
 	 * case a widget does get added.
 	 *
 	 * @since 4.8.0
 	 */
 	public function enqueue_preview_scripts() {
 		/** This filter is documented in wp-includes/media.php */
 		if ( 'mediaelement' === apply_filters( 'wp_audio_shortcode_library', 'mediaelement' ) ) {
 			wp_enqueue_style( 'wp-mediaelement' );
 			wp_enqueue_script( 'wp-mediaelement' );
 		}
 	}
 
 	/**
 	 * Loads the required media files for the media manager and scripts for media widgets.
 	 *
 	 * @since 4.8.0
 	 */
 	public function enqueue_admin_scripts() {
 		parent::enqueue_admin_scripts();
 
 		wp_enqueue_style( 'wp-mediaelement' );
 		wp_enqueue_script( 'wp-mediaelement' );
 
 		$handle = 'media-audio-widget';
 		wp_enqueue_script( $handle );
 
 		$exported_schema = array();
 		foreach ( $this->get_instance_schema() as $field => $field_schema ) {
 			$exported_schema[ $field ] = wp_array_slice_assoc( $field_schema, array( 'type', 'default', 'enum', 'minimum', 'format', 'media_prop', 'should_preview_update' ) );
 		}
 		wp_add_inline_script(
 			$handle,
 			sprintf(
 				'wp.mediaWidgets.modelConstructors[ %s ].prototype.schema = %s;',
 				wp_json_encode( $this->id_base ),
 				wp_json_encode( $exported_schema )
 			)
 		);
 
 		wp_add_inline_script(
 			$handle,
 			sprintf(
 				'
 					wp.mediaWidgets.controlConstructors[ %1$s ].prototype.mime_type = %2$s;
 					wp.mediaWidgets.controlConstructors[ %1$s ].prototype.l10n = _.extend( {}, wp.mediaWidgets.controlConstructors[ %1$s ].prototype.l10n, %3$s );
 				',
 				wp_json_encode( $this->id_base ),
 				wp_json_encode( $this->widget_options['mime_type'] ),
 				wp_json_encode( $this->l10n )
 			)
 		);
 	}
 
 	/**
 	 * Render form template scripts.
 	 *
 	 * @since 4.8.0
 	 */
 	public function render_control_template_scripts() {
 		parent::render_control_template_scripts()
 		?>
 		<script type="text/html" id="tmpl-wp-media-widget-audio-preview">
 			<# if ( data.error && 'missing_attachment' === data.error ) { #>
 				<div class="notice notice-error notice-alt notice-missing-attachment">
 					<p><?php echo $this->l10n['missing_attachment']; ?></p>
 				</div>
 			<# } else if ( data.error ) { #>
 				<div class="notice notice-error notice-alt">
 					<p><?php _e( 'Unable to preview media due to an unknown error.' ); ?></p>
 				</div>
 			<# } else if ( data.model && data.model.src ) { #>
 				<?php wp_underscore_audio_template(); ?>
 			<# } #>
 		</script>
 		<?php
 	}
 }