[Zope-Checkins] CVS: Zope3/lib/python/Zope/App/ZMI - IZMIViewService.py:1.1.2.1 ZMIViewService.py:1.1.2.1

[Kapil]

Update of /cvs-repository/Zope3/lib/python/Zope/App/ZMI
In directory cvs.zope.org:/tmp/cvs-serv12654

Added Files:
      Tag: Zope-3x-branch
	IZMIViewService.py ZMIViewService.py 
Log Message:
(sprint) Added ZMI View Service/Registry 


=== Added File Zope3/lib/python/Zope/App/ZMI/IZMIViewService.py ===
from Interface import Interface     

class IZMIViewService(Interface):
    
    def getViews(object):
        """ return a sequence of tuples consisting of label, path for zmi
       management views of an object """
        
    

=== Added File Zope3/lib/python/Zope/App/ZMI/ZMIViewService.py ===
from IZMIViewService import IZMIViewService
from Interface.Util import objectImplements, flattenInterfaces

class ZMIViewService:
    
    __implements__ = IZMIViewService

    def __init__(self):
        self._reg = {}

    def _clear(self):
        """ for testing """
        self._reg = {}

    def registerView(self, interface, label, action):
        """ register a zmi view """
        views = self._reg.get(interface, [])
        views.append((label,action))
        self._reg[interface]=views
        
    def getViews(self, object):
        """ see inteface docs. returns views in order defined
        with tabs from more general interfaces coming after
        more specific. """
        
        res = []
        
        obj_interfaces = flattenInterfaces(objectImplements(object))
        
        for interface in obj_interfaces:
            res.extend(self._reg.get(interface, ()) )
        return res