[fusion-trac] #508: Redline widget usability improvements

[Fusion]

#508: Redline widget usability improvements
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   Reporter:  jng          |       Owner:  jng   
       Type:  enhancement  |      Status:  new   
   Priority:  P2           |   Milestone:  Future
  Component:  Widgets      |     Version:  2.0   
   Severity:  Major        |    Keywords:        
External_id:               |       State:  New   
    Browser:  All          |          Os:  All   
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 The user workflow for the new redline widget takes significantly more
 steps than the previous redline widget. The usability can be improved
 somewhat as follows:

  * When clicking "New" button on the initial page, prompt() for a layer
 name (must check name to guard against duplicate layer names). Once added,
 create a default redline layer definition, and add it directly to the map
 and redirect to the edit redline page. Do not direct the user to the page
 for editing the layer's style. We'll add a new button for that purpose
 (see below)
  * Add a new "Edit Style" button to the initial page, allowing for the
 style of a redline layer to be modified.
  * Repurpose the "New Redline Layer" page to be used for editing the style
 of an existing redline layer. Make the layer name field readonly to
 prevent saving to a duplicate layer name.
  * In the edit redline page, add a checkbox indicating if the user should
 be prompted to enter a label for any recorded redlines. This checkbox
 should be unchecked by default.
  * Add the ability to upload previously created redline SDF files. Just
 like the creating a new layer, uploading a redline SDF file will
 automatically add this layer to the map and redirects to the edit redline
 page for recording of redlines. We assume the SDF being uploaded has a
 compatible feature schema. If it doesn't we redirect to an error page
 indicating that the uploaded SDF is incompatible.

 This set of changes reduces the redline management burden on the user, and
 makes all management functions optional instead of required.

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Ticket URL: <http://trac.osgeo.org/fusion/ticket/508>
Fusion <http://trac.osgeo.org/fusion>
Fusion is a web-mapping application development framework for MapServer and MapGuide OS.