X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=_source%2Fplugins%2Fundo%2Fplugin.js;h=337c427cd3ad92190756aabb3b86109b65cb4224;hb=e73319a12b56100b29ef456fd74114fe5519e01c;hp=94744eadcf4c8bf36bf7fe76a4da102dafbaf727;hpb=4e90e78dc97789709ee7404359a5517540c27553;p=ckeditor.git

diff --git a/_source/plugins/undo/plugin.js b/_source/plugins/undo/plugin.js
index 94744ea..337c427 100644
--- a/_source/plugins/undo/plugin.js
+++ b/_source/plugins/undo/plugin.js
@@ -64,9 +64,9 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
 			editor.on( 'afterCommandExec', recordCommand );
 
 			// Save snapshots before doing custom changes.
-			editor.on( 'saveSnapshot', function()
+			editor.on( 'saveSnapshot', function( evt )
 				{
-					undoManager.save();
+					undoManager.save( evt.data && evt.data.contentOnly );
 				});
 
 			// Registering keydown on every document recreation.(#3844)
@@ -90,7 +90,7 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
 			// Make the undo manager available only in wysiwyg mode.
 			editor.on( 'mode', function()
 				{
-					undoManager.enabled = editor.mode == 'wysiwyg';
+					undoManager.enabled = editor.readOnly ? false : editor.mode == 'wysiwyg';
 					undoManager.onChange();
 				});
 
@@ -116,24 +116,22 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
 			};
 
 			/**
-			 * Update the undo stacks with any subsequent DOM changes after this call.
+			 * Amend the top of undo stack (last undo image) with the current DOM changes.
 			 * @name CKEDITOR.editor#updateUndo
 			 * @example
 			 * function()
 			 * {
-			 * editor.fire( 'updateSnapshot' );
-			 * ...
-			 *  // Ask to include subsequent (in this call stack) DOM changes to be
-			 * // considered as part of the first snapshot.
-			 * 	editor.fire( 'updateSnapshot' );
+			 *  editor.fire( 'saveSnapshot' );
 			 * 	editor.document.body.append(...);
+			 *  // Make new changes following the last undo snapshot part of it.
+			 * 	editor.fire( 'updateSnapshot' );
 			 * ...
 			 * }
 			 */
 			editor.on( 'updateSnapshot', function()
 			{
-				if ( undoManager.currentImage && new Image( editor ).equals( undoManager.currentImage ) )
-					setTimeout( function() { undoManager.update(); }, 0 );
+				if ( undoManager.currentImage )
+					undoManager.update();
 			});
 		}
 	});
@@ -545,6 +543,7 @@ For licensing, see LICENSE.html or http://ckeditor.com/license
 /**
  * The number of undo steps to be saved. The higher this setting value the more
  * memory is used for it.
+ * @name CKEDITOR.config.undoStackSize
  * @type Number
  * @default 20
  * @example