lightbox.py

   1 # -*- coding: utf-8 -*-
   2 ############################################################
   3 # Copyright © 2005-2008  Benoît PIN <benoit.pin@ensmp.fr>  #
   4 # Plinn - http://plinn.org                                 #
   5 #                                                          #
   6 # This program is free software; you can redistribute it   #
   7 # and/or modify it under the terms of the Creative Commons #
   8 # "Attribution-Noncommercial 2.0 Generic"                  #
   9 # http://creativecommons.org/licenses/by-nc/2.0/           #
  10 ############################################################
  11 """ Lightboxes contains references to images.
  12     References are made with CMFUid stuff.
  13 $Id: lightbox.py 622 2008-11-16 23:38:18Z pin $
  14 $URL: http://svn.luxia.fr/svn/labo/projects/zope/Portfolio/trunk/lightbox.py $
  15 """
  16
  17 from Globals import InitializeClass
  18 from AccessControl import ClassSecurityInfo
  19 from Products.CMFCore.permissions import View, ModifyPortalContent
  20 from Products.CMFCore.PortalContent import PortalContent
  21 from Products.CMFDefault.DublinCore import DefaultDublinCoreImpl
  22 from zope.component.factory import Factory
  23
  24 class Lightbox( PortalContent, DefaultDublinCoreImpl):
  25         "lightbox holds references to photos"
  26
  27         security = ClassSecurityInfo()
  28
  29         def __init__( self, id, title='', uids=[], description=''):
  30                 DefaultDublinCoreImpl.__init__(self)
  31                 self.id=id
  32                 self.uids = tuple(uids)
  33                 self._editMetadata(title=title, description=description)
  34
  35         security.declareProtected(View, 'getUidList')
  36         def getUidList(self):
  37                 return list(self.uids)
  38
  39         security.declareProtected(ModifyPortalContent, 'append')
  40         def append(self, uid):
  41                 if uid not in self.uids :
  42                         self.uids = self.uids  + (uid,)
  43                         self.notifyModified()
  44                         self.reindexObject(idxs=['modified'])
  45                         return True
  46                 else :
  47                         return False
  48
  49         security.declareProtected(ModifyPortalContent, 'extend')
  50         def extend(self, uids):
  51                 already = 0
  52                 new = []
  53                 for uid in uids :
  54                         if uid not in self.uids :
  55                                 new.append(uid)
  56                         else :
  57                                 already = already + 1
  58                 self.uids = self.uids + tuple(new)
  59                 if len(already < uids) :
  60                         self.notifyModified()
  61                         self.reindexObject(idxs=['modified'])
  62                 return already
  63
  64         security.declareProtected(ModifyPortalContent, 'pop')
  65         def pop(self, index=None):
  66                 i = index
  67                 if i is None :
  68                         i = len(self.uids) -1
  69
  70                 self.uids = self.uids[:i] + self.uids[i+1:]
  71
  72                 self.notifyModified()
  73                 self.reindexObject(idxs=['modified'])
  74
  75         security.declareProtected(ModifyPortalContent, 'remove')
  76         def remove(self, value):
  77                 for i, v in enumerate(self.uids) :
  78                         if value == v :
  79                                 self.pop(i)
  80                                 break
  81                 else :
  82                         return
  83                 self.notifyModified()
  84                 self.reindexObject(idxs=['modified'])
  85
  86 InitializeClass(Lightbox)
  87
  88 LightboxFactory = Factory(Lightbox)