Media: Blur the "Add Images" button when the media modal is opened. fixes #22445, see #21390.

git-svn-id: http://core.svn.wordpress.org/trunk@22665 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/media-upload.js

@@ -435,11 +435,19 @@ var tb_position;
 
 		init: function() {
 			$('#wpbody').on('click', '.insert-media', function( event ) {
-				var editor = $(this).data('editor'),
+				var $this = $(this),
+					editor = $this.data('editor'),
 					workflow;
 
 				event.preventDefault();
 
+				// Remove focus from the `.insert-media` button.
+				// Prevents Opera from showing the outline of the button
+				// above the modal.
+				//
+				// See: http://core.trac.wordpress.org/ticket/22445
+				$this.blur();
+
 				if ( ! editor )
 					return;