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