435 lines
13 KiB
PHP
435 lines
13 KiB
PHP
<?php
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/**
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* Class wrapper for audio shortcode
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*/
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class AudioShortcode {
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static $add_script = false;
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/**
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* Add all the actions & resgister the shortcode
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*/
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function __construct() {
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add_shortcode( 'audio', array( $this, 'audio_shortcode' ) );
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add_action( 'wp_enqueue_scripts', array( $this, 'check_infinite' ) );
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add_action( 'infinite_scroll_render', array( $this, 'audio_shortcode_infinite' ), 11 );
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}
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/**
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* Return the $url of the audio
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*/
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static function get_audio_id( $atts ) {
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if ( isset( $atts[0] ) )
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return $atts[0];
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else
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return 0;
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}
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/**
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* Shortcode for audio
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* [audio http://wpcom.files.wordpress.com/2007/01/mattmullenweg-interview.mp3|width=180|titles=1|artists=2]
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*
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* The important question here is whether the shortcode applies to widget_text:
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* add_filter('widget_text', 'do_shortcode');
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* */
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function audio_shortcode( $atts ) {
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global $ap_playerID;
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global $post;
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if ( ! is_array( $atts ) ) {
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return '<!-- Audio shortcode passed invalid attributes -->';
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}
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if ( ! isset( $atts[0] ) ) {
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if ( isset( $atts['src'] ) ) {
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$atts[0] = $atts['src'];
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unset( $atts['src'] );
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} else {
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return '<!-- Audio shortcode source not set -->';
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}
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}
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$post_id = 0;
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if ( isset( $post ) ) {
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$post_id = $post->ID;
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}
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// add the special .js
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wp_enqueue_script(
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'audio-shortcode',
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plugins_url( 'js/audio-shortcode.js', __FILE__ ),
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array( 'jquery' ),
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'1.1',
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true);
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// alert the infinite scroll renderer that it should try to load the script
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self::$add_script = true;
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$atts[0] = strip_tags( join( ' ', $atts ) );
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$src = ltrim( $atts[0], '=' );
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/**
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* Set the audio player default colors.
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*
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* @module shortcodes
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*
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* @since 1.4.0
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*
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* @param array $ap_options {
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* The default colors for the audio player in hexidecimal format (e.g. 0x#F8F8F8).
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*
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* @type string $bg Background color.
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* @type string $leftbg Left background color.
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* @type string $lefticon Left icon color.
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* @type string $rightbg Right background color.
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* @type string $rightbghover Right background hover color.
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* @type string $righticon Right icon color.
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* @type string $righticonhover Right icon hover color.
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* @type string $text Text color.
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* @type string $slider Slider color.
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* @type string $track Track color.
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* @type string $border Border color.
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* @type string $loader Loader color.
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*/
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$ap_options = apply_filters(
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'audio_player_default_colors',
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array(
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"bg" => "0xF8F8F8",
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"leftbg" => "0xEEEEEE",
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"lefticon" => "0x666666",
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"rightbg" => "0xCCCCCC",
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"rightbghover" => "0x999999",
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"righticon" => "0x666666",
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"righticonhover" => "0xFFFFFF",
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"text" => "0x666666",
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"slider" => "0x666666",
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"track" => "0xFFFFFF",
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"border" => "0x666666",
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"loader" => "0x9FFFB8"
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) );
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if ( ! isset( $ap_playerID ) ) {
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$ap_playerID = 1;
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} else {
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$ap_playerID++;
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}
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if ( ! isset( $load_audio_script ) ) {
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$load_audio_script = true;
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}
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// prep the audio files
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$src = trim( $src, ' "' );
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$options = array();
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$data = preg_split( "/\|/", $src );
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$sound_file = $data[0];
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$sound_files = explode( ',', $sound_file );
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if ( is_ssl() ) {
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for ( $i = 0; $i < count( $sound_files ); $i++ ) {
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$sound_files[ $i ] = preg_replace( '#^http://([^.]+).files.wordpress.com/#', 'https://$1.files.wordpress.com/', $sound_files[ $i ] );
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}
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}
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$sound_files = array_map( 'trim', $sound_files );
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$sound_files = array_map( array( $this, 'rawurlencode_spaces' ), $sound_files );
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$sound_files = array_map( 'esc_url_raw', $sound_files ); // Ensure each is a valid URL
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$num_files = count( $sound_files );
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$sound_types = array(
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'mp3' => 'mpeg',
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'wav' => 'wav',
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'ogg' => 'ogg',
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'oga' => 'ogg',
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'm4a' => 'mp4',
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'aac' => 'mp4',
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'webm' => 'webm'
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);
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for ( $i = 1; $i < count( $data ); $i++ ) {
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$pair = explode( "=", $data[$i] );
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if ( strtolower( $pair[0] ) != 'autostart' ) {
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$options[$pair[0]] = $pair[1];
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}
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}
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// Merge runtime options to default colour options
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// (runtime options overwrite default options)
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foreach ( $ap_options as $key => $default ) {
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if ( isset( $options[$key] ) ) {
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if ( preg_match( '/^(0x)?[a-f0-9]{6}$/i', $default ) && !preg_match( '/^(0x)?[a-f0-9]{6}$/i', $options[$key] ) ) {
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// Default is a hex color, but input is not
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$options[$key] = $default;
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}
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} else {
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$options[$key] = $default;
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}
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}
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$options['soundFile'] = join( ',', $sound_files ); // Rebuild the option with our now sanitized data
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$flash_vars = array();
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foreach ( $options as $key => $value ) {
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$flash_vars[] = rawurlencode( $key ) . '=' . rawurlencode( $value );
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}
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$flash_vars = implode( '&', $flash_vars );
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$flash_vars = esc_attr( $flash_vars );
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// extract some of the options to insert into the markup
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if ( isset( $options['bgcolor'] ) && preg_match( '/^(0x)?[a-f0-9]{6}$/i', $options['bgcolor'] ) ) {
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$bgcolor = preg_replace( '/^(0x)?/', '#', $options['bgcolor'] );
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$bgcolor = esc_attr( $bgcolor );
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} else {
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$bgcolor = '#FFFFFF';
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}
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if ( isset( $options['width'] ) ) {
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$width = intval( $options['width'] );
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} else {
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$width = 290;
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}
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$loop = '';
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$script_loop = 'false';
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if ( isset( $options['loop'] ) && 'yes' == $options['loop'] ) {
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$script_loop = 'true';
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if ( 1 == $num_files ) {
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$loop = 'loop';
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}
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}
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$volume = 0.6;
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if ( isset( $options['initialvolume'] ) &&
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0.0 < floatval( $options['initialvolume'] ) &&
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100.0 >= floatval( $options['initialvolume'] ) ) {
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$volume = floatval( $options['initialvolume'] )/100.0;
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}
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$file_artists = array_pad( array(), $num_files, '' );
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if ( isset( $options['artists'] ) ) {
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$artists = preg_split( '/,/', $options['artists'] );
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foreach ( $artists as $i => $artist ) {
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$file_artists[$i] = esc_html( $artist ) . ' - ';
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}
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}
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// generate default titles
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$file_titles = array();
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for ( $i = 0; $i < $num_files; $i++ ) {
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$file_titles[] = 'Track #' . ($i+1);
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}
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// replace with real titles if they exist
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if ( isset( $options['titles'] ) ) {
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$titles = preg_split( '/,/', $options['titles'] );
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foreach ( $titles as $i => $title ) {
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$file_titles[$i] = esc_html( $title );
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}
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}
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// fallback for the fallback, just a download link
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$not_supported = '';
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foreach ( $sound_files as $sfile ) {
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$not_supported .= sprintf(
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__( 'Download: <a href="%s">%s</a><br />', 'jetpack' ),
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esc_url( $sfile ),
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esc_html( basename( $sfile ) ) );
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}
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// HTML5 audio tag
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$html5_audio = '';
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$all_mp3 = true;
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$add_audio = true;
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$num_good = 0;
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$to_remove = array();
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foreach ( $sound_files as $i => $sfile ) {
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$file_extension = pathinfo( $sfile, PATHINFO_EXTENSION );
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if ( ! preg_match( '/^(mp3|wav|ogg|oga|m4a|aac|webm)$/i', $file_extension ) ) {
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$html5_audio .= '<!-- Audio shortcode unsupported audio format -->';
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if ( 1 == $num_files ) {
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$html5_audio .= $not_supported;
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}
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$to_remove[] = $i; // make a note of the bad files
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$all_mp3 = false;
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continue;
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} elseif ( ! preg_match( '/^mp3$/i', $file_extension ) ) {
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$all_mp3 = false;
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}
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if ( 0 == $i ) { // only need one player
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$html5_audio .= <<<AUDIO
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<span id="wp-as-{$post_id}_{$ap_playerID}-container">
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<audio id='wp-as-{$post_id}_{$ap_playerID}' controls preload='none' $loop style='background-color:$bgcolor;width:{$width}px;'>
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<span id="wp-as-{$post_id}_{$ap_playerID}-nope">$not_supported</span>
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</audio>
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</span>
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<br />
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AUDIO;
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}
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$num_good++;
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}
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// player controls, if needed
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if ( 1 < $num_files ) {
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$html5_audio .= <<<CONTROLS
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<span id='wp-as-{$post_id}_{$ap_playerID}-controls' style='display:none;'>
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<a id='wp-as-{$post_id}_{$ap_playerID}-prev'
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href='javascript:audioshortcode.prev_track( "{$post_id}_{$ap_playerID}" );'
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style='font-size:1.5em;'>«</a>
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<a id='wp-as-{$post_id}_{$ap_playerID}-next'
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href='javascript:audioshortcode.next_track( "{$post_id}_{$ap_playerID}", true, $script_loop );'
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style='font-size:1.5em;'>»</a>
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</span>
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CONTROLS;
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}
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$html5_audio .= "<span id='wp-as-{$post_id}_{$ap_playerID}-playing'></span>";
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/**
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* Sets external resource URL.
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*
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* @module shortcodes
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*
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* @since 1.4.0
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*
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* @param string $args URL of external resource.
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*
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*/
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$swfurl = apply_filters(
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'jetpack_static_url',
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set_url_scheme( "http://en.wordpress.com/wp-content/plugins/audio-player/player.swf" )
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);
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// all the fancy javascript is causing Google Reader to break, just include flash in GReader
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// override html5 audio code w/ just not supported code
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if ( is_feed() ) {
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$html5_audio = $not_supported;
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}
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if ( $all_mp3 ) {
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// process regular flash player, inserting HTML5 tags into object as fallback
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$audio_tags = <<<FLASH
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<object id='wp-as-{$post_id}_{$ap_playerID}-flash' type='application/x-shockwave-flash' data='$swfurl' width='$width' height='24'>
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<param name='movie' value='$swfurl' />
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<param name='FlashVars' value='{$flash_vars}' />
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<param name='quality' value='high' />
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<param name='menu' value='false' />
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<param name='bgcolor' value='$bgcolor' />
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<param name='wmode' value='opaque' />
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$html5_audio
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</object>
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FLASH;
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} else { // just HTML5 for non-mp3 versions
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$audio_tags = $html5_audio;
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}
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// strip out all the bad files before it reaches .js
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foreach ( $to_remove as $i ) {
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array_splice( $sound_files, $i, 1 );
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array_splice( $file_artists, $i, 1 );
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array_splice( $file_titles, $i, 1 );
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}
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// mashup the artist/titles for the script
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$script_titles = array();
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for ( $i = 0; $i < $num_files; $i++ ) {
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if ( isset( $file_artists[ $i ] ) && isset( $file_titles[ $i ] ) ) {
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$script_titles[] = $file_artists[ $i ] . $file_titles[ $i ];
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}
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}
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// javacript to control audio
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$script_files = json_encode( $sound_files );
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$script_titles = json_encode( $script_titles );
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$script = <<<SCRIPT
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<script type='text/javascript'>
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//<![CDATA[
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(function() {
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var prep = function() {
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if ( 'undefined' === typeof window.audioshortcode ) { return; }
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audioshortcode.prep(
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'{$post_id}_{$ap_playerID}',
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$script_files,
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$script_titles,
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$volume,
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$script_loop
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);
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};
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if ( 'undefined' === typeof jQuery ) {
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if ( document.addEventListener ) {
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window.addEventListener( 'load', prep, false );
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} else if ( document.attachEvent ) {
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window.attachEvent( 'onload', prep );
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}
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} else {
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jQuery(document).on( 'ready as-script-load', prep );
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}
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})();
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//]]>
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</script>
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SCRIPT;
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// add the special javascript, if needed
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if ( 0 < $num_good && ! is_feed() ) {
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$audio_tags .= $script;
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}
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return "<span style='text-align:left;display:block;'><p>$audio_tags</p></span>";
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}
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/**
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* If the theme uses infinite scroll, include jquery at the start
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*/
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function check_infinite() {
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if ( current_theme_supports( 'infinite-scroll' ) && class_exists( 'The_Neverending_Home_Page' ) && The_Neverending_Home_Page::archive_supports_infinity() )
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wp_enqueue_script( 'jquery' );
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}
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/**
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* Dynamically load the .js, if needed
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*
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* This hooks in late (priority 11) to infinite_scroll_render to determine
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* a posteriori if a shortcode has been called.
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*/
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function audio_shortcode_infinite() {
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// only try to load if a shortcode has been called
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if( self::$add_script ) {
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$script_url = json_encode( esc_url_raw( plugins_url( 'js/audio-shortcode.js', __FILE__ ) ) );
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// if the script hasn't been loaded, load it
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// if the script loads successfully, fire an 'as-script-load' event
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echo <<<SCRIPT
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<script type='text/javascript'>
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//<![CDATA[
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if ( typeof window.audioshortcode === 'undefined' ) {
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var wp_as_js = document.createElement( 'script' );
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wp_as_js.type = 'text/javascript';
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wp_as_js.src = $script_url;
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wp_as_js.async = true;
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wp_as_js.onload = function() {
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jQuery( document.body ).trigger( 'as-script-load' );
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};
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document.getElementsByTagName( 'head' )[0].appendChild( wp_as_js );
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} else {
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jQuery( document.body ).trigger( 'as-script-load' );
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}
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//]]>
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</script>
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SCRIPT;
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}
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}
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/**
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* Fixes URLs that have been pasted with spaces:
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* [audio http://example.com/Some Cool Music.mp3]
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*
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* @param string $url
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* @return string
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*/
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function rawurlencode_spaces( $url ) {
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return str_replace( ' ', rawurlencode( ' ' ), $url );
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}
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}
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// kick it all off
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new AudioShortcode();
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