Page History

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• Effect: The tree might still jump slightly when expanding/collapsing nodes, just for the time it repaints.
• Cause: It is likely that there is some scroll position hack in connectors that we should assert how useful it is.
  
  • FOUND! line 138 in TableConnector: getWidget().updateFirstVisibleAndScrollIfNeeded(uidl);
    
    • was introduced with partial updates, see http://dev.vaadin.com/ticket/6722
    • it seems it can be removed, at least provided lazy loading is turned off.
  • It is It is even documented in VScrollTable as /** For internal use only. May be removed or replaced in the future. */
    • as well as all other methods originating from legacy updateFromUIDL mechanism.
      
• Fix: Patch TableConnector to remove the call or VScrollTable to remove the body of that method.

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