diff -r 346c88efed21 -r 5e2f62d02dcd wp/wp-includes/js/tinymce/plugins/wpgallery/plugin.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/js/tinymce/plugins/wpgallery/plugin.js	Tue Jun 09 03:35:32 2015 +0200
@@ -0,0 +1,112 @@
+/* global tinymce */
+tinymce.PluginManager.add('wpgallery', function( editor ) {
+
+	function replaceGalleryShortcodes( content ) {
+		return content.replace( /\[gallery([^\]]*)\]/g, function( match ) {
+			return html( 'wp-gallery', match );
+		});
+	}
+
+	function html( cls, data ) {
+		data = window.encodeURIComponent( data );
+		return '<img src="' + tinymce.Env.transparentSrc + '" class="wp-media mceItem ' + cls + '" ' +
+			'data-wp-media="' + data + '" data-mce-resize="false" data-mce-placeholder="1" />';
+	}
+
+	function restoreMediaShortcodes( content ) {
+		function getAttr( str, name ) {
+			name = new RegExp( name + '=\"([^\"]+)\"' ).exec( str );
+			return name ? window.decodeURIComponent( name[1] ) : '';
+		}
+
+		return content.replace( /(?:<p(?: [^>]+)?>)*(<img [^>]+>)(?:<\/p>)*/g, function( match, image ) {
+			var data = getAttr( image, 'data-wp-media' );
+
+			if ( data ) {
+				return '<p>' + data + '</p>';
+			}
+
+			return match;
+		});
+	}
+
+	function editMedia( node ) {
+		var gallery, frame, data;
+
+		if ( node.nodeName !== 'IMG' ) {
+			return;
+		}
+
+		// Check if the `wp.media` API exists.
+		if ( typeof wp === 'undefined' || ! wp.media ) {
+			return;
+		}
+
+		data = window.decodeURIComponent( editor.dom.getAttrib( node, 'data-wp-media' ) );
+
+		// Make sure we've selected a gallery node.
+		if ( editor.dom.hasClass( node, 'wp-gallery' ) && wp.media.gallery ) {
+			gallery = wp.media.gallery;
+			frame = gallery.edit( data );
+
+			frame.state('gallery-edit').on( 'update', function( selection ) {
+				var shortcode = gallery.shortcode( selection ).string();
+				editor.dom.setAttrib( node, 'data-wp-media', window.encodeURIComponent( shortcode ) );
+				frame.detach();
+			});
+		}
+	}
+
+	// Register the command so that it can be invoked by using tinyMCE.activeEditor.execCommand('...');
+	editor.addCommand( 'WP_Gallery', function() {
+		editMedia( editor.selection.getNode() );
+	});
+
+	editor.on( 'mouseup', function( event ) {
+		var dom = editor.dom,
+			node = event.target;
+
+		function unselect() {
+			dom.removeClass( dom.select( 'img.wp-media-selected' ), 'wp-media-selected' );
+		}
+
+		if ( node.nodeName === 'IMG' && dom.getAttrib( node, 'data-wp-media' ) ) {
+			// Don't trigger on right-click
+			if ( event.button !== 2 ) {
+				if ( dom.hasClass( node, 'wp-media-selected' ) ) {
+					editMedia( node );
+				} else {
+					unselect();
+					dom.addClass( node, 'wp-media-selected' );
+				}
+			}
+		} else {
+			unselect();
+		}
+	});
+
+	// Display gallery, audio or video instead of img in the element path
+	editor.on( 'ResolveName', function( event ) {
+		var dom = editor.dom,
+			node = event.target;
+
+		if ( node.nodeName === 'IMG' && dom.getAttrib( node, 'data-wp-media' ) ) {
+			if ( dom.hasClass( node, 'wp-gallery' ) ) {
+				event.name = 'gallery';
+			}
+		}
+	});
+
+	editor.on( 'BeforeSetContent', function( event ) {
+		// 'wpview' handles the gallery shortcode when present
+		if ( ! editor.plugins.wpview || typeof wp === 'undefined' || ! wp.mce ) {
+			event.content = replaceGalleryShortcodes( event.content );
+		}
+	});
+
+	editor.on( 'PostProcess', function( event ) {
+		if ( event.get ) {
+			event.content = restoreMediaShortcodes( event.content );
+		}
+	});
+});