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<title>[27862] trunk/src: Metadata for audio and video files:</title>
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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://core.trac.wordpress.org/changeset/27862">27862</a></dd>
<dt>Author</dt> <dd>wonderboymusic</dd>
<dt>Date</dt> <dd>2014-03-30 19:27:31 +0000 (Sun, 30 Mar 2014)</dd>
</dl>

<h3>Log Message</h3>
<pre>Metadata for audio and video files:

* Make attachment metadata for audio files editable by providing a metabox on the Edit Media page
* Standardize on using the attachment title everywhere
* Label the Caption and Description fields for audio and video appropriately
* Make the playlist Underscore templates more straightforward

See <a href="http://core.trac.wordpress.org/ticket/27574">#27574</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpadmineditformadvancedphp">trunk/src/wp-admin/edit-form-advanced.php</a></li>
<li><a href="#trunksrcwpadminincludesmediaphp">trunk/src/wp-admin/includes/media.php</a></li>
<li><a href="#trunksrcwpadminincludesmetaboxesphp">trunk/src/wp-admin/includes/meta-boxes.php</a></li>
<li><a href="#trunksrcwpadminincludespostphp">trunk/src/wp-admin/includes/post.php</a></li>
<li><a href="#trunksrcwpincludesmediaphp">trunk/src/wp-includes/media.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpadmineditformadvancedphp"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-admin/edit-form-advanced.php (27861 => 27862)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-admin/edit-form-advanced.php        2014-03-30 17:50:08 UTC (rev 27861)
+++ trunk/src/wp-admin/edit-form-advanced.php   2014-03-30 19:27:31 UTC (rev 27862)
</span><span class="lines">@@ -139,6 +139,10 @@
</span><span class="cx">  wp_enqueue_style( 'imgareaselect' );
</span><span class="cx">  add_meta_box( 'submitdiv', __('Save'), 'attachment_submit_meta_box', null, 'side', 'core' );
</span><span class="cx">  add_action( 'edit_form_after_title', 'edit_form_image_editor' );
</span><ins>+
+       if ( preg_match( '#^audio#', $post->post_mime_type ) ) {
+               add_meta_box( 'attachment-id3', __( 'Metadata' ), 'attachment_id3_data_meta_box', null, 'normal', 'core' );
+       }
</ins><span class="cx"> } else {
</span><span class="cx">  add_meta_box( 'submitdiv', __( 'Publish' ), 'post_submit_meta_box', null, 'side', 'core', $publish_callback_args );
</span><span class="cx"> }
</span></span></pre></div>
<a id="trunksrcwpadminincludesmediaphp"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-admin/includes/media.php (27861 => 27862)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-admin/includes/media.php    2014-03-30 17:50:08 UTC (rev 27861)
+++ trunk/src/wp-admin/includes/media.php       2014-03-30 19:27:31 UTC (rev 27862)
</span><span class="lines">@@ -2661,10 +2661,14 @@
</span><span class="cx">  </div>
</span><span class="cx">  <div class="wp_attachment_details edit-form-section">
</span><span class="cx">          <p>
</span><del>-                       <label for="attachment_caption"><strong><?php _e( 'Caption' ); ?></strong></label><br />
</del><ins>+                        <label for="attachment_caption"><strong><?php _e( 'Caption' ); ?></strong><?php
+                       if ( preg_match( '#^audio|video#', $post->post_mime_type ) ): ?>: <?php
+                               _e( "Custom label for item in a playlist. If empty, the file's available data is used." );
+                       endif ?></label><br />
</ins><span class="cx">                   <textarea class="widefat" name="excerpt" id="attachment_caption"><?php echo $post->post_excerpt; ?></textarea>
</span><span class="cx">          </p>
</span><span class="cx"> 
</span><ins>+
</ins><span class="cx">   <?php if ( 'image' === substr( $post->post_mime_type, 0, 5 ) ) : ?>
</span><span class="cx">          <p>
</span><span class="cx">                  <label for="attachment_alt"><strong><?php _e( 'Alternative Text' ); ?></strong></label><br />
</span><span class="lines">@@ -2683,7 +2687,10 @@
</span><span class="cx">          );
</span><span class="cx">  ?>
</span><span class="cx"> 
</span><del>-       <label for="content"><strong><?php _e( 'Description' ); ?></strong></label>
</del><ins>+        <label for="content"><strong><?php _e( 'Description' ); ?></strong><?php
+       if ( preg_match( '#^audio|video#', $post->post_mime_type ) ): ?>: <?php
+               _e( 'Displayed on attachment pages.' );
+       endif ?></label>
</ins><span class="cx">   <?php wp_editor( $post->post_content, 'attachment_content', $editor_args ); ?>
</span><span class="cx"> 
</span><span class="cx">  </div>
</span><span class="lines">@@ -2765,8 +2772,6 @@
</span><span class="cx">           */
</span><span class="cx">          $fields = apply_filters( 'media_submitbox_misc_sections', array(
</span><span class="cx">                  'mime_type'        => __( 'Mime-type:' ),
</span><del>-                       'year'             => __( 'Year:' ),
-                       'genre'            => __( 'Genre:' ),
</del><span class="cx">                   'length_formatted' => __( 'Length:' ),
</span><span class="cx">          ) );
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunksrcwpadminincludesmetaboxesphp"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-admin/includes/meta-boxes.php (27861 => 27862)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-admin/includes/meta-boxes.php       2014-03-30 17:50:08 UTC (rev 27861)
+++ trunk/src/wp-admin/includes/meta-boxes.php  2014-03-30 19:27:31 UTC (rev 27862)
</span><span class="lines">@@ -1057,3 +1057,28 @@
</span><span class="cx">  $thumbnail_id = get_post_meta( $post->ID, '_thumbnail_id', true );
</span><span class="cx">  echo _wp_post_thumbnail_html( $thumbnail_id, $post->ID );
</span><span class="cx"> }
</span><ins>+
+/**
+ * Display fields for ID3 data
+ *
+ * @since 3.9.0
+ *
+ * @param WP_Post $post
+ */
+function attachment_id3_data_meta_box( $post ) {
+       $meta = array();
+       if ( ! empty( $post->ID ) ) {
+               $meta = wp_get_attachment_metadata( $post->ID );
+       }
+
+       foreach ( wp_get_relevant_id3_keys() as $key => $label ): ?>
+       <p>
+               <label for="title"><?php echo $label ?></label>
+               <input type="text" name="id3_<?php echo esc_attr( $key ) ?>" id="id3_<?php echo esc_attr( $key ) ?>" class="widefat" value="<?php
+                       if ( ! empty( $meta[ $key ] ) ) {
+                               echo esc_attr( $meta[ $key ] );
+                       }
+               ?>" />
+       </p>
+       <?php endforeach;
+}
</ins><span class="cx">\ No newline at end of file
</span></span></pre></div>
<a id="trunksrcwpadminincludespostphp"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-admin/includes/post.php (27861 => 27862)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-admin/includes/post.php     2014-03-30 17:50:08 UTC (rev 27861)
+++ trunk/src/wp-admin/includes/post.php        2014-03-30 19:27:31 UTC (rev 27862)
</span><span class="lines">@@ -237,6 +237,24 @@
</span><span class="cx">          }
</span><span class="cx">  }
</span><span class="cx"> 
</span><ins>+       if ( 'attachment' === $post_data['post_type'] && preg_match( '#^audio|video#', $post_data['post_mime_type'] ) ) {
+               $id3data = wp_get_attachment_metadata( $post_ID );
+               if ( ! is_array( $id3data ) ) {
+                       $id3data = array();
+               }
+
+               foreach ( wp_get_relevant_id3_keys() as $key => $label ) {
+                       if ( isset( $post_data[ 'id3_' . $key ] ) ) {
+                               if ( current_user_can( 'unfiltered_html' ) ) {
+                                       $id3data[ $key ] = wp_unslash( $post_data[ 'id3_' . $key ] );
+                               } else {
+                                       $id3data[ $key ] = wp_unslash( wp_kses_post( $post_data[ 'id3_' . $key ] ) );
+                               }
+                       }
+               }
+               wp_update_attachment_metadata( $post_ID, $id3data );
+       }
+
</ins><span class="cx">   // Meta Stuff
</span><span class="cx">  if ( isset($post_data['meta']) && $post_data['meta'] ) {
</span><span class="cx">          foreach ( $post_data['meta'] as $key => $value ) {
</span></span></pre></div>
<a id="trunksrcwpincludesmediaphp"></a>
<div class="modfile"><h4>Modified: trunk/src/wp-includes/media.php (27861 => 27862)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/src/wp-includes/media.php  2014-03-30 17:50:08 UTC (rev 27861)
+++ trunk/src/wp-includes/media.php     2014-03-30 19:27:31 UTC (rev 27862)
</span><span class="lines">@@ -1018,30 +1018,26 @@
</span><span class="cx">  <# if ( data.image ) { #>
</span><span class="cx">  <img src="{{{ data.thumb.src }}}"/>
</span><span class="cx">  <# } #>
</span><del>-       <# if ( data.meta.title ) { #>
</del><span class="cx">   <div class="wp-playlist-caption">
</span><del>-               <span class="wp-caption-meta wp-caption-title">&#8220;{{{ data.meta.title }}}&#8221;</span>
-               <span class="wp-caption-meta wp-caption-album">{{{ data.meta.album }}}</span>
-               <span class="wp-caption-meta wp-caption-artist">{{{ data.meta.artist }}}</span>
</del><ins>+                <span class="wp-caption-meta wp-caption-title">&#8220;{{{ data.title }}}&#8221;</span>
+               <# if ( data.meta.album ) { #><span class="wp-caption-meta wp-caption-album">{{{ data.meta.album }}}</span><# } #>
+               <# if ( data.meta.artist ) { #><span class="wp-caption-meta wp-caption-artist">{{{ data.meta.artist }}}</span><# } #>
</ins><span class="cx">   </div>
</span><del>-       <# } else { #>
-       <div class="wp-playlist-caption">{{{ data.caption ? data.caption : data.title }}}</div>
-       <# } #>
</del><span class="cx"> </script>
</span><span class="cx"> <script type="text/html" id="tmpl-wp-playlist-item">
</span><span class="cx">  <div class="wp-playlist-item">
</span><del>-               <# if ( ( data.title || data.meta.title ) && ( ! data.artists || data.meta.artist ) ) { #>
</del><span class="cx">           <div class="wp-playlist-caption">
</span><span class="cx">                  {{{ data.index ? ( data.index + '.&nbsp;' ) : '' }}}
</span><del>-                       <span class="wp-caption-title">&#8220;{{{ data.title ? data.title : data.meta.title }}}&#8221;</span>
-                       <# if ( data.artists ) { #>
-                       <span class="wp-caption-by"><?php _e( 'by' ) ?></span>
-                       <span class="wp-caption-artist">{{{ data.meta.artist }}}</span>
</del><ins>+                        <# if ( data.caption ) { #>
+                               {{{ data.caption }}}
+                       <# } else { #>
+                               <span class="wp-caption-title">&#8220;{{{ data.title }}}&#8221;</span>
+                               <# if ( data.artists && data.meta.artist ) { #>
+                               <span class="wp-caption-by"><?php _e( 'by' ) ?></span>
+                               <span class="wp-caption-artist">{{{ data.meta.artist }}}</span>
+                               <# } #>
</ins><span class="cx">                   <# } #>
</span><span class="cx">          </div>
</span><del>-               <# } else { #>
-               <div class="wp-playlist-caption">{{{ data.index ? ( data.index + '.' ) : '' }}} {{{ data.caption ? data.caption : data.title }}}</div>
-               <# } #>
</del><span class="cx">           <# if ( data.meta.length_formatted ) { #>
</span><span class="cx">          <div class="wp-playlist-item-length">{{{ data.meta.length_formatted }}}</div>
</span><span class="cx">          <# } #>
</span><span class="lines">@@ -1207,8 +1203,7 @@
</span><span class="cx">          $meta = wp_get_attachment_metadata( $attachment->ID );
</span><span class="cx">          if ( ! empty( $meta ) ) {
</span><span class="cx"> 
</span><del>-                       $keys = array( 'title', 'artist', 'band', 'album', 'genre', 'year', 'length', 'length_formatted' );
-                       foreach ( $keys as $key ) {
</del><ins>+                        foreach ( wp_get_relevant_id3_keys() as $key => $label ) {
</ins><span class="cx">                           if ( ! empty( $meta[ $key ] ) ) {
</span><span class="cx">                                  $track['meta'][ $key ] = $meta[ $key ];
</span><span class="cx">                          }
</span><span class="lines">@@ -1318,6 +1313,30 @@
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> /**
</span><ins>+ * Return useful keys to use to lookup data from an attachment's stored metadata
+ *
+ * @since 3.9.0
+ *
+ * @return array
+ */
+function wp_get_relevant_id3_keys() {
+       $fields = array(
+               'artist' => __( 'Artist' ),
+               'album' => __( 'Album' ),
+               'genre' => __( 'Genre' ),
+               'year' => __( 'Year' ),
+               'length_formatted' => __( 'Formatted Length' )
+       );
+       /**
+        * Filter the editable list of keys to lookup data from an attachment's metadata
+        *
+        * @since 3.9.0
+        *
+        * @param array $fields
+        */
+       return apply_filters( 'wp_get_relevant_id3_keys', $fields );
+}
+/**
</ins><span class="cx">  * The Audio shortcode.
</span><span class="cx">  *
</span><span class="cx">  * This implements the functionality of the Audio Shortcode for displaying
</span><span class="lines">@@ -2312,8 +2331,7 @@
</span><span class="cx">                  $response['fileLength'] = $meta['length_formatted'];
</span><span class="cx"> 
</span><span class="cx">          $response['meta'] = array();
</span><del>-               $keys = array( 'title', 'artist', 'band', 'album', 'genre', 'year', 'length', 'length_formatted' );
-               foreach ( $keys as $key ) {
</del><ins>+                foreach ( wp_get_relevant_id3_keys() as $key => $label ) {
</ins><span class="cx">                   if ( ! empty( $meta[ $key ] ) ) {
</span><span class="cx">                          $response['meta'][ $key ] = $meta[ $key ];
</span><span class="cx">                  }
</span></span></pre>
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