1 #

     2 # Copyright (c) 2008-2015 Thierry Florac <tflorac AT ulthar.net>

     3 # All Rights Reserved.

     4 #

     5 # This software is subject to the provisions of the Zope Public License,

     6 # Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.

     7 # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED

     8 # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

     9 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS

    10 # FOR A PARTICULAR PURPOSE.

    11 #

    12 

    13 __docformat__ = 'restructuredtext'

    14 

    15 

    16 # import standard library

    17 

    18 # import interfaces

    19 from pyams_content.shared.common.interfaces import IWfSharedContent

    20 from pyams_file.interfaces import IMediaFile, IThumbnailFile

    21 from zope.lifecycleevent.interfaces import IObjectAddedEvent, IObjectModifiedEvent, IObjectRemovedEvent

    22 

    23 # import packages

    24 from pyams_utils.traversing import get_parent

    25 from pyramid.events import subscriber

    26 from pyramid.threadlocal import get_current_registry

    27 from zope.lifecycleevent import ObjectModifiedEvent

    28 

    29 

    30 @subscriber(IObjectAddedEvent, context_selector=IMediaFile)

    31 def handle_added_media(event):

    32     """Handle added media file"""

    33     media = event.object

    34     if IThumbnailFile.providedBy(media):

    35         return

    36     content = get_parent(media, IWfSharedContent)

    37     if content is not None:

    38         get_current_registry().notify(ObjectModifiedEvent(content))

    39 

    40 

    41 @subscriber(IObjectModifiedEvent, context_selector=IMediaFile)

    42 def handle_modified_media(event):

    43     """Handle modified media file"""

    44     media = event.object

    45     if IThumbnailFile.providedBy(media):

    46         return

    47     content = get_parent(media, IWfSharedContent)

    48     if content is not None:

    49         get_current_registry().notify(ObjectModifiedEvent(content))

    50 

    51 

    52 @subscriber(IObjectRemovedEvent, context_selector=IMediaFile)

    53 def handle_removed_media(event):

    54     """Handle removed media file"""

    55     media = event.object

    56     if IThumbnailFile.providedBy(media):

    57         return

    58     content = get_parent(media, IWfSharedContent)

    59     if content is not None:

    60         get_current_registry().notify(ObjectModifiedEvent(content))