--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_content/component/media/__init__.py	Thu Apr 21 18:10:03 2016 +0200
@@ -0,0 +1,60 @@
+#
+# Copyright (c) 2008-2015 Thierry Florac <tflorac AT ulthar.net>
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+
+__docformat__ = 'restructuredtext'
+
+
+# import standard library
+
+# import interfaces
+from pyams_content.shared.common.interfaces import IWfSharedContent
+from pyams_file.interfaces import IMediaFile, IThumbnailFile
+from zope.lifecycleevent.interfaces import IObjectAddedEvent, IObjectModifiedEvent, IObjectRemovedEvent
+
+# import packages
+from pyams_utils.traversing import get_parent
+from pyramid.events import subscriber
+from pyramid.threadlocal import get_current_registry
+from zope.lifecycleevent import ObjectModifiedEvent
+
+
+@subscriber(IObjectAddedEvent, context_selector=IMediaFile)
+def handle_added_media(event):
+    """Handle added media file"""
+    media = event.object
+    if IThumbnailFile.providedBy(media):
+        return
+    content = get_parent(media, IWfSharedContent)
+    if content is not None:
+        get_current_registry().notify(ObjectModifiedEvent(content))
+
+
+@subscriber(IObjectModifiedEvent, context_selector=IMediaFile)
+def handle_modified_media(event):
+    """Handle modified media file"""
+    media = event.object
+    if IThumbnailFile.providedBy(media):
+        return
+    content = get_parent(media, IWfSharedContent)
+    if content is not None:
+        get_current_registry().notify(ObjectModifiedEvent(content))
+
+
+@subscriber(IObjectRemovedEvent, context_selector=IMediaFile)
+def handle_removed_media(event):
+    """Handle removed media file"""
+    media = event.object
+    if IThumbnailFile.providedBy(media):
+        return
+    content = get_parent(media, IWfSharedContent)
+    if content is not None:
+        get_current_registry().notify(ObjectModifiedEvent(content))