When user drags an widget on canvas, new widget would be created and a new entry comes in navigation-main table. Similarly children-widgets are created and subsequent entries will be given in specific tables. For undo operation, navigation-row entry for "delete" can be set to false, similarly for redo operation, entry would be false again. | When user drags an widget on canvas, new widget would be created and a new entry comes in navigation-main table. Similarly children-widgets are created and subsequent entries will be given in specific tables. For undo operation, navigation-row entry for "delete" can be set to false, similarly for redo operation, entry would be false again. |