+
+( function( $, counter ) {
+ $( function() {
+ var $content = $( '#content' ),
+ $count = $( '#wp-word-count' ).find( '.word-count' ),
+ prevCount = 0,
+ contentEditor;
+
+ function update() {
+ var text, count;
+
+ if ( ! contentEditor || contentEditor.isHidden() ) {
+ text = $content.val();
+ } else {
+ text = contentEditor.getContent( { format: 'raw' } );
+ }
+
+ count = counter.count( text );
+
+ if ( count !== prevCount ) {
+ $count.text( count );
+ }
+
+ prevCount = count;
+ }
+
+ $( document ).on( 'tinymce-editor-init', function( event, editor ) {
+ if ( editor.id !== 'content' ) {
+ return;
+ }
+
+ contentEditor = editor;
+
+ editor.on( 'nodechange keyup', _.debounce( update, 1000 ) );
+ } );
+
+ $content.on( 'input keyup', _.debounce( update, 1000 ) );
+
+ update();
+ } );
+} )( jQuery, new wp.utils.WordCounter() );