Gallery editing in the media modal.

The edit button on gallery MCE views will open a new instance of the media modal. Images can be removed, uploaded, and reordered. However, the "Add images from media library" button is not yet functional.

see #21390, #21809, #21815.


git-svn-id: https://develop.svn.wordpress.org/trunk@22155 602fd350-edb4-49c9-b593-d223f7449a82

wp-includes/script-loader.php

@@ -330,6 +330,7 @@ function wp_default_scripts( &$scripts ) {
 		// Gallery
 		'returnToLibrary'       => __( 'Return to media library' ),
 		'insertGalleryIntoPost' => __( 'Insert gallery into post' ),
+		'updateGallery'         => __( 'Update gallery' ),
 		'addImagesFromLibrary'  => __( 'Add images from media library' ),
 	) );
 
@@ -337,6 +338,7 @@ function wp_default_scripts( &$scripts ) {
 	$scripts->add( 'mce-view', "/wp-includes/js/mce-view$suffix.js", array( 'shortcode', 'media-models' ), false, 1 );
 	did_action( 'init' ) && $scripts->localize( 'mce-view', '_wpMceViewL10n', array(
 		'contentWidth' => isset( $GLOBALS['content_width'] ) ? $GLOBALS['content_width'] : 800,
+		'editGallery'  => __( 'Edit Gallery' ),
 	) );
 
 	if ( is_admin() ) {