argo-audio-player.php

<?php
/**
 * @package Argo_Audio_Player
 * @version 1.1
 */
/*
Plugin Name: Argo Audio Player
Plugin URI: https://github.com/argoproject/argo-audio-player
Description: The Argo Audio Player Plugin.
Author: Project Argo, Mission Data
Version: 1.1
Author URI:
License: GPLv2
*/

/* The Argo Audio Player Plugin class - so we don't have function naming conflicts */
class ArgoAudioPlayer {

  /* Initialize the plugin */
  function init() {

	/**
	 * Add the "audio" shortcode for use in posts
	 * We call all other functions from within the argo_audio_shortcode function
	 * so that we only load the plugin assets if they are needed
	 * ie the shortcode is used on a page
	*/

	/* Override the default add audio link to post action*/
	add_filter( 'audio_send_to_editor_url', array(__CLASS__, 'argo_audio_editor_shortcode'), 10, 3 );
	add_filter( 'media_send_to_editor', array(__CLASS__, 'argo_audio_editor_media_gallery_shortcode'), 10, 3 );

	/* Add action to enqueue the jquery file for loading (this is called before the header loads)*/
	add_action('get_header', array(__CLASS__,'ArgoGetWPHeader'));
	add_action('wp_print_styles' ,array(__CLASS__, 'add_styles'));
	add_action('init',array(__CLASS__, 'add_audio_shortcode'));
  }
  function add_audio_shortcode() {
    add_shortcode( 'audio', array(__CLASS__,'argo_audio_shortcode'));
  }
  /* Make sure the jQuery is queued up to be loaded, because we need it! */
  function ArgoGetWPHeader() {
	wp_enqueue_script("jquery");
  }
  /* Always load the css into the wp header, the only way it works right*/
  function add_styles() {
  	$css = plugins_url('css/argo-audio-player.css', __FILE__);
  	wp_enqueue_style('argo-audio-player', $css, array(), 1);
  }

  /* Inserts the needed code into the themes footer */
  function ArgoWPFooter() {

	/* Load up the SoundManager 2 javascript files into the footer */
	echo "<script src='".plugins_url(null,__FILE__)."/js/sm.min.js'></script>";
	echo "<script src='".plugins_url(null, __FILE__)."/js/sm.playlist.js'></script>";


	/* Setup the SoundManager 2 swf directories*/
	echo "<script>
	soundManager.url = '".plugins_url(null,__FILE__)."/swf/';

	function setTheme(sTheme) {
	  var o = document.getElementsByTagName('ul')[0];
	  o.className = 'playlist'+(sTheme?' '+sTheme:'');
	  return false;
	}
	soundManager.onready(function() {
	  // SM2 is ready to play audio!
	});

	</script>";

  }

  /*
   * DISABLE DEFAULT FUNCTIONALITY
   */

  function disable_builtin_caption( $shcode, $html ) {
	  return $html;
  }
  //add_filter( 'image_add_caption_shortcode', 'disable_builtin_caption', 15, 2 );
  /*
   * END DISABLE DEFAULT FUNCTIONALITY
   */

  /*
   * AUDIO EDITOR MARKUP CUSTOMIZATIONS
   */
  function argo_audio_editor_markup( $href, $title, $caption ) {
	  $out = sprintf( '<ul class="%s"><li>', 'playlist' );
	  $out .= sprintf( '<a href="%s" class="%s" title="%s">%s', $href, 'inline', $title, $title );
	  if ( $caption ) {
		  $out .= sprintf( '<span class="%s">%s</span></a>', 'caption', $caption );
	  }
	  $out .= sprintf( '<a href="%s" class="%s">%s</a>', $href, 'exclude', 'Download' );
	  $out .= "</li></ul>";

	  return $out;
  }

  /*
   * SHORTCODES
   */
  function argo_audio_shortcode( $atts, $content ) {
	  extract( $atts );
	  /* Insert needed code into the footer */
    add_action('wp_footer',array(__CLASS__,'ArgoWPFooter'));
	  $html = ArgoAudioPlayer::argo_audio_editor_markup( $href, $title, $content );
	  return $html;
  }

  // construct shortcode for audio embeds
  function argo_audio_editor_shortcode( $html, $href, $title  ) {
	  return sprintf( '[audio href="%s" title="%s"]Insert caption here[/audio]', $href, $title );
  }
  // construct shortcode for audio embeds
  function argo_audio_editor_media_gallery_shortcode( $html, $send_id, $attachment  ) {
		$title = '';
		$href = '';
		if (preg_match("/\.mp3|\.ogg|\.mp4|\.wav|\.m4a/",$html)) {
		  /* Get the title from the html */
		  preg_match("/\>.+\</",$html,$title);
		  $title = $title[0];
		  $title = preg_replace("/\>|\</","",$title);
		  $title = preg_replace("/_/"," ",$title);
		  /* Get the url of the file from the html */
		  preg_match("/\'.+\'/",$html,$href);
		  $href = $href[0];
		  $href = preg_replace("/\'/","",$href);
		  return sprintf( '[audio href="%s" title="%s"]Insert caption here[/audio]', $href, $title );
		} else {
		  return $html;
		}
  }

  /*
   * ADMIN PRESENTATION CUSTOMIZATIONS
   */
  function argo_tweak_upload_tabs( $defaults ) {
	  if ( array_key_exists( 'gallery', $defaults ) ) {
		  unset( $defaults[ 'gallery' ] );
	  }
	  return $defaults;
  }
  // XXX: it does more harm than good to comment this out.
  //add_filter( 'media_upload_tabs', 'argo_tweak_upload_tabs', 12, 1 );


  /*
   * END ADMIN PRESENTATION CUSTOMIZATIONS
   */
}

/* Initialize the plugin using it's init() function */
ArgoAudioPlayer::init();
?>