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SYNCHRONIZING UNDO/REDO OPERATIONS BETWEEN DIFFERENT DOCUMENT VIEWS

  • US 20080177800A1
  • Filed: 01/18/2007
  • Published: 07/24/2008
  • Est. Priority Date: 01/18/2007
  • Status: Active Grant
First Claim
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1. At a computer system including an editor having a plurality of document views including a first view and a second view, the first view and the second view having different document architectures for representing documents loaded into the editor, a method for synchronizing undo operations between the first and second view, the method comprising:

  • an act of detecting a change to the document in the first view;

    an act of the first view creating a global undo unit in a unified undo stack, the unified undo stack accessible to and configured for compatible interaction with both the first view and the second view;

    an act of the first view inserting a first view undo operation for the detected change into the global undo unit;

    an act of the first view notifying the second view of the detected change such that the detected change can be synchronized between the first view and the second view;

    an act of the first view receiving a notification that the second view has inserted a corresponding appropriate second view undo unit into the global undo unit such that undo operations for undoing the detected change are unified in the global undo unit.

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