Undo-History

From CSScripting

The Undo History Object

Properties

history.maxLength

An integer, indicating the number of steps in the undo history. Default is 5.

Methods

history.add(model)

Stores a copy of the model's DOMDocument in the history queue.

history.removeLast()

Removes the last entry in the history.

history.undo()

Restores an older DOMDocument from the history queue. The model's DOMDocument is replaced, so any existing references to it are lost and must be reassigned. For instance:

  var xmlroot = model.get('document').documentElement;
  var Controller.history.add(model);
  var Controller.history.undo(); 
  /* xmlroot is now null, so we reset it. */
  xmlroot = model.get('document').documentElement;

Note: This method is not fully tested.

history.redo()

Restores a newer DOMDocument from the history queue. Newer DOMDocuments can only be present in the history if the undo method has been called at least once before.

Note: This method is not fully implemented.