(.+?):s';
/**
* The ID of individual playlist.
*
* @var int
*/
public static $playlist_id = 0;
/**
* The removed shortcode callback.
*
* @var callable
*/
public $removed_shortcode_callback;
/**
* Registers the playlist shortcode.
*
* @global array $shortcode_tags
* @return void
*/
public function register_embed() {
global $shortcode_tags;
if ( shortcode_exists( self::SHORTCODE ) ) {
$this->removed_shortcode_callback = $shortcode_tags[ self::SHORTCODE ];
}
add_shortcode( self::SHORTCODE, [ $this, 'shortcode' ] );
remove_action( 'wp_playlist_scripts', 'wp_playlist_scripts' );
}
/**
* Unregisters the playlist shortcode.
*
* @return void
*/
public function unregister_embed() {
if ( isset( $this->removed_shortcode_callback ) ) {
add_shortcode( self::SHORTCODE, $this->removed_shortcode_callback );
unset( $this->removed_shortcode_callback );
}
add_action( 'wp_playlist_scripts', 'wp_playlist_scripts' );
}
/**
* Enqueues the playlist styling.
*
* @return void
*/
public function enqueue_styles() {
wp_enqueue_style(
'amp-playlist-shortcode',
amp_get_asset_url( 'css/amp-playlist-shortcode.css' ),
[ 'wp-mediaelement' ],
AMP__VERSION
);
wp_styles()->add_data( 'amp-playlist-shortcode', 'rtl', 'replace' );
}
/**
* Gets AMP-compliant markup for the playlist shortcode.
*
* Uses the JSON that wp_playlist_shortcode() produces.
* Gets the markup, based on the type of playlist.
*
* @param array $attr The playlist attributes.
* @return string Playlist shortcode markup.
*/
public function shortcode( $attr ) {
$data = $this->get_data( $attr );
if ( isset( $data['type'] ) && ( 'audio' === $data['type'] ) ) {
return $this->audio_playlist( $data );
}
if ( isset( $data['type'] ) && ( 'video' === $data['type'] ) ) {
return $this->video_playlist( $data );
}
return '';
}
/**
* Gets an AMP-compliant audio playlist.
*
* @param array $data Data.
* @return string Playlist shortcode markup, or an empty string.
*/
public function audio_playlist( $data ) {
if ( ! isset( $data['tracks'] ) ) {
return '';
}
self::$playlist_id++;
$container_id = 'wpPlaylist' . self::$playlist_id . 'Carousel';
$state_id = 'wpPlaylist' . self::$playlist_id;
$amp_state = [
'selectedIndex' => 0,
];
$this->enqueue_styles();
ob_start();
?>
get_title( $track );
$image_url = isset( $track['thumb']['src'] ) ? $track['thumb']['src'] : '';
$dimensions = $this->get_thumb_dimensions( $track );
?>
print_tracks( $state_id, $data['tracks'] ); ?>
0,
];
foreach ( $data['tracks'] as $index => $track ) {
$amp_state[ $index ] = [
'videoUrl' => $track['src'],
'thumb' => isset( $track['thumb']['src'] ) ? $track['thumb']['src'] : '',
];
}
$dimensions = isset( $data['tracks'][0]['dimensions']['resized'] ) ? $data['tracks'][0]['dimensions']['resized'] : null;
$width = isset( $dimensions['width'] ) ? $dimensions['width'] : $content_width;
$height = isset( $dimensions['height'] ) ? $dimensions['height'] : null;
$src_bound = sprintf( '%s[%s.selectedIndex].videoUrl', $state_id, $state_id );
$this->enqueue_styles();
ob_start();
?>
print_tracks( $state_id, $data['tracks'] ); ?>
self::THUMB_MAX_WIDTH ) {
$ratio = $original_width / self::THUMB_MAX_WIDTH;
$height = (int) ( $original_height / $ratio );
} else {
$height = $original_height;
}
$width = min( self::THUMB_MAX_WIDTH, $original_width );
return compact( 'height', 'width' );
}
/**
* Outputs the playlist tracks, based on the type of playlist.
*
* These typically appear below the player.
* Clicking a track triggers the player to appear with its src.
*
* @param string $state_id The ID of the container.
* @param array $tracks Tracks.
* @return void
*/
public function print_tracks( $state_id, $tracks ) {
?>
$track ) : ?>
[ 'selectedIndex' => $index ] ] ) . ')';
$initial_class = 0 === $index ? 'wp-playlist-item wp-playlist-playing' : 'wp-playlist-item';
$bound_class = sprintf( '%d == %s.selectedIndex ? "wp-playlist-item wp-playlist-playing" : "wp-playlist-item"', $index, $state_id );
?>