208 lines
6.0 KiB
PHP
208 lines
6.0 KiB
PHP
<?php
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/**
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* Widget API: WP_Widget_Media_Audio class
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*
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* @package WordPress
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* @subpackage Widgets
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* @since 4.8.0
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*/
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/**
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* Core class that implements an audio widget.
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*
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* @since 4.8.0
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*
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* @see WP_Widget
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*/
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class WP_Widget_Media_Audio extends WP_Widget_Media {
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/**
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* Constructor.
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*
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* @since 4.8.0
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*/
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public function __construct() {
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parent::__construct(
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'media_audio',
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__( 'Audio' ),
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array(
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'description' => __( 'Displays an audio player.' ),
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'mime_type' => 'audio',
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)
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);
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$this->l10n = array_merge(
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$this->l10n,
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array(
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'no_media_selected' => __( 'No audio selected' ),
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'add_media' => _x( 'Add Audio', 'label for button in the audio widget' ),
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'replace_media' => _x( 'Replace Audio', 'label for button in the audio widget; should preferably not be longer than ~13 characters long' ),
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'edit_media' => _x( 'Edit Audio', 'label for button in the audio widget; should preferably not be longer than ~13 characters long' ),
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'missing_attachment' => sprintf(
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/* translators: %s: URL to media library */
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__( 'We can’t find that audio file. Check your <a href="%s">media library</a> and make sure it wasn’t deleted.' ),
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esc_url( admin_url( 'upload.php' ) )
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),
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/* translators: %d: widget count */
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'media_library_state_multi' => _n_noop( 'Audio Widget (%d)', 'Audio Widget (%d)' ),
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'media_library_state_single' => __( 'Audio Widget' ),
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'unsupported_file_type' => __( 'Looks like this isn’t the correct kind of file. Please link to an audio file instead.' ),
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)
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);
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}
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/**
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* Get schema for properties of a widget instance (item).
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*
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* @since 4.8.0
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*
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* @see WP_REST_Controller::get_item_schema()
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* @see WP_REST_Controller::get_additional_fields()
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* @link https://core.trac.wordpress.org/ticket/35574
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* @return array Schema for properties.
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*/
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public function get_instance_schema() {
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$schema = array_merge(
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parent::get_instance_schema(),
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array(
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'preload' => array(
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'type' => 'string',
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'enum' => array( 'none', 'auto', 'metadata' ),
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'default' => 'none',
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'description' => __( 'Preload' ),
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),
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'loop' => array(
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'type' => 'boolean',
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'default' => false,
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'description' => __( 'Loop' ),
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),
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)
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);
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foreach ( wp_get_audio_extensions() as $audio_extension ) {
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$schema[ $audio_extension ] = array(
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'type' => 'string',
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'default' => '',
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'format' => 'uri',
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/* translators: %s: audio extension */
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'description' => sprintf( __( 'URL to the %s audio source file' ), $audio_extension ),
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);
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}
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return $schema;
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}
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/**
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* Render the media on the frontend.
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*
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* @since 4.8.0
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*
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* @param array $instance Widget instance props.
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* @return void
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*/
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public function render_media( $instance ) {
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$instance = array_merge( wp_list_pluck( $this->get_instance_schema(), 'default' ), $instance );
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$attachment = null;
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if ( $this->is_attachment_with_mime_type( $instance['attachment_id'], $this->widget_options['mime_type'] ) ) {
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$attachment = get_post( $instance['attachment_id'] );
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}
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if ( $attachment ) {
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$src = wp_get_attachment_url( $attachment->ID );
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} else {
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$src = $instance['url'];
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}
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echo wp_audio_shortcode(
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array_merge(
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$instance,
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compact( 'src' )
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)
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);
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}
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/**
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* Enqueue preview scripts.
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*
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* These scripts normally are enqueued just-in-time when an audio shortcode is used.
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* In the customizer, however, widgets can be dynamically added and rendered via
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* selective refresh, and so it is important to unconditionally enqueue them in
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* case a widget does get added.
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*
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* @since 4.8.0
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*/
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public function enqueue_preview_scripts() {
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/** This filter is documented in wp-includes/media.php */
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if ( 'mediaelement' === apply_filters( 'wp_audio_shortcode_library', 'mediaelement' ) ) {
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wp_enqueue_style( 'wp-mediaelement' );
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wp_enqueue_script( 'wp-mediaelement' );
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}
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}
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/**
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* Loads the required media files for the media manager and scripts for media widgets.
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*
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* @since 4.8.0
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*/
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public function enqueue_admin_scripts() {
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parent::enqueue_admin_scripts();
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wp_enqueue_style( 'wp-mediaelement' );
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wp_enqueue_script( 'wp-mediaelement' );
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$handle = 'media-audio-widget';
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wp_enqueue_script( $handle );
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$exported_schema = array();
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foreach ( $this->get_instance_schema() as $field => $field_schema ) {
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$exported_schema[ $field ] = wp_array_slice_assoc( $field_schema, array( 'type', 'default', 'enum', 'minimum', 'format', 'media_prop', 'should_preview_update' ) );
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}
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wp_add_inline_script(
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$handle,
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sprintf(
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'wp.mediaWidgets.modelConstructors[ %s ].prototype.schema = %s;',
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wp_json_encode( $this->id_base ),
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wp_json_encode( $exported_schema )
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)
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);
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wp_add_inline_script(
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$handle,
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sprintf(
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'
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wp.mediaWidgets.controlConstructors[ %1$s ].prototype.mime_type = %2$s;
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wp.mediaWidgets.controlConstructors[ %1$s ].prototype.l10n = _.extend( {}, wp.mediaWidgets.controlConstructors[ %1$s ].prototype.l10n, %3$s );
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',
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wp_json_encode( $this->id_base ),
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wp_json_encode( $this->widget_options['mime_type'] ),
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wp_json_encode( $this->l10n )
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)
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);
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}
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/**
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* Render form template scripts.
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*
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* @since 4.8.0
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*/
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public function render_control_template_scripts() {
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parent::render_control_template_scripts()
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?>
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<script type="text/html" id="tmpl-wp-media-widget-audio-preview">
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<# if ( data.error && 'missing_attachment' === data.error ) { #>
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<div class="notice notice-error notice-alt notice-missing-attachment">
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<p><?php echo $this->l10n['missing_attachment']; ?></p>
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</div>
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<# } else if ( data.error ) { #>
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<div class="notice notice-error notice-alt">
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<p><?php _e( 'Unable to preview media due to an unknown error.' ); ?></p>
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</div>
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<# } else if ( data.model && data.model.src ) { #>
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<?php wp_underscore_audio_template(); ?>
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<# } #>
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</script>
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<?php
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}
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}
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