ImageSlot.py

   1 # (c) 2003 Centre de Recherche en Informatique ENSMP Fontainebleau <http://cri.ensmp.fr>
   2 # (c) 2003 Benoît PIN <mailto:pin@cri.ensmp.fr>
   3 #
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License version 2 as published
   6 # by the Free Software Foundation.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program; if not, write to the Free Software
  15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  16 # 02111-1307, USA.
  17 #
  18
  19 from OFS.Image import cookId
  20 from Globals import InitializeClass
  21
  22 from Products.CMFCore.permissions import View, ModifyPortalContent
  23 from AccessControl import ClassSecurityInfo
  24 from Products.Photo import Photo
  25 from BaseSlot import BaseSlot
  26
  27 factory_type_information = ( {'id'             : 'Image Slot',
  28                               'meta_type'      : 'Image Slot',
  29                               'description'    : "Image Slot for Mosaic Document",
  30                               'icon'           : 'mosaic_tool/photo_icon.gif',
  31                               'product'        : 'MosaicDocument',
  32                               'factory'        : 'addImageSlot',
  33                               'immediate_view' : 'view',
  34                               'actions'        :
  35                                 ({'id'            : 'view',
  36                                   'name'          : 'View',
  37                                   'action'        : 'slot_image_view',
  38                                   'permissions'   : (View, )
  39                                   },
  40
  41                                  {'id'            : 'edit',
  42                                   'name'          : 'Edit',
  43                                   'action'        : 'slot_image_form',
  44                                   'permissions'   : (ModifyPortalContent, )
  45                                   },
  46                                  )
  47                                },
  48                              )
  49
  50 class ImageSlot(BaseSlot, Photo) :
  51     """Slot"""
  52     meta_type = 'Image Slot'
  53     manage_options = Photo.manage_options
  54
  55     _indexableFields = ('title',)
  56
  57     security = ClassSecurityInfo()
  58
  59
  60     def __init__(self, parentContainer, id, title='', file='',
  61                  content_type='', precondition='', blankThumbnail = '', **kw) :
  62         blankThumbnailOb = None
  63         if blankThumbnail :
  64             blankThumbnailOb = parentContainer.restrictedTraverse(blankThumbnail)
  65         Photo.__init__(self, id, title=title, file=file,
  66                        defaultBlankThumbnail = blankThumbnailOb, **kw)
  67
  68
  69     # This method is overloaded to manage file upload.
  70     # It's necessary to use manage_upload method from image
  71     # because manage_upload invoke update_data and the overload of
  72     # update_data in Photo product update the internal thumbnail image.
  73     security.declareProtected(ModifyPortalContent, 'edit')
  74     def edit(self, title='', thumb_width='440', thumb_height='440', file='', REQUEST=None):
  75         """ Edit image slot"""
  76         if file :
  77             self.manage_upload(file=file)
  78
  79         if self.thumb_height != thumb_height or thumb_width != thumb_width :
  80             if thumb_width <= thumb_height :
  81                 self.manage_editProperties(thumb_width=thumb_width, thumb_height=thumb_height)
  82             else :
  83                 self.manage_editProperties(thumb_width=thumb_height, thumb_height=thumb_width)
  84         if title :
  85             self.manage_editProperties(title = title, no_refresh = 1)
  86
  87     view = index_html = __call__ = Photo.index_html
  88
  89 InitializeClass(ImageSlot)
  90
  91 def addImageSlot(dispatcher, id, file='', title='',
  92              precondition='', content_type='', REQUEST=None, **kw) :
  93     """
  94     Add a new Photo object.
  95     Creates a new Photo object 'id' with the contents of 'file'.
  96     """
  97     id=str(id)
  98     title=str(title)
  99     content_type=str(content_type)
 100     precondition=str(precondition)
 101
 102     id, title = cookId(id, title, file)
 103     parentContainer = dispatcher.Destination()
 104
 105     # First, we create the image without data:
 106     parentContainer._setObject(id, ImageSlot(parentContainer, id,title,'',content_type, precondition, **kw))
 107
 108     # Now we "upload" the data.  By doing this in two steps, we
 109     # can use a database trick to make the upload more efficient.
 110     if file:
 111         parentContainer._getOb(id).manage_upload(file)
 112     if content_type:
 113         parentContainer._getOb(id).content_type=content_type
 114
 115     if REQUEST is not None:
 116         try:    url=dispatcher.DestinationURL()
 117         except: url=REQUEST['URL1']
 118         REQUEST.RESPONSE.redirect('%s/manage_main' % url)
 119     return id