[fusion-trac] #165: Mouse wheel zoom results in multiple redundant image requests

[Fusion]

#165: Mouse wheel zoom results in multiple redundant image requests
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   Reporter:  chrisclaydon  |       Owner:  madair            
       Type:  defect        |      Status:  new               
   Priority:  P2            |   Milestone:  2.0               
  Component:  Widgets       |     Version:  SVN               
   Severity:  Major         |    Keywords:                    
External_id:                |       State:  Analysis Requested
    Browser:  All           |          Os:  All               
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 When you zoom in with the mouse wheel, it looks like a request is made to
 the MG server for every incremental click through the mouse wheel detents.

 This results in a great number of redundant requests to the server for
 images that are never even displayed.

 The MG AJAX viewer uses setInterval to wait until the user has stopped
 moving the mouse wheel for 500ms before making a map request.

 Fusion/OpenLayers could benefit significantly in performance and
 scalability by using a similar approach.

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Ticket URL: <http://trac.osgeo.org/fusion/ticket/165>
Fusion <http://trac.osgeo.org/fusion>
Fusion is a web-mapping application development framework for MapServer and MapGuide OS.