[QGIS-trac] [Quantum GIS] #2541: Add canUninstall function to python plugin modules

[Quantum GIS]

#2541: Add canUninstall function to python plugin modules
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   Reporter:  ccrook                       |              Owner:  borysiasty   
       Type:  bug                          |             Status:  new          
   Priority:  minor: annoyance             |          Milestone:  Version 1.5.0
  Component:  Python plugins and bindings  |            Version:  HEAD         
   Keywords:                               |   Platform_version:  1.5          
   Platform:  All                          |           Must_fix:  No           
Status_info:  0                            |  
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 Some modules need to manage behaviour when they are uninstalled (as
 opposed to just unloaded when qgis closes down).  For example layer or
 renderer plugins may need to remove layers, reset renderers, or at least
 explain to users that projects made using them may no longer load.

 This patch adds a canUninstall function to the plugin interface.  If this
 is absent, or if it returns True, then the plugin will be uninstalled.  If
 it returns false, then the plugin manager will not uninstall the plugin.

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Ticket URL: <http://trac.osgeo.org/qgis/ticket/2541>
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