New events for pre-filling a NoticeList

The NoticeList has some code to pre-fill some auxiliary data for
notices. These new events let plugins hook that event and do their own
pre-filling.

EVENTS.txt

@@ -1441,4 +1441,12 @@ EndNoticeInScope: After checking if a notice should be visible to a user
 - $profile: The profile to check for scope
 - &$bResult: The boolean result; overwrite this if you so desire
 
+StartNoticeListPrefill: Before pre-filling a list of notices with extra data
+- &$notices: Notices to be pre-filled
+- $avatarSize: The avatar size for the list
+
+EndNoticeListPrefill: After pre-filling a list of notices with extra data
+- &$notices: Notices that were pre-filled
+- &$profiles: Profiles that were pre-filled 
+- $avatarSize: The avatar size for the list
 

lib/noticelist.php

@@ -124,6 +124,8 @@ class NoticeList extends Widget
     
     static function prefill(&$notices, $avatarSize=AVATAR_STREAM_SIZE)
     {
+        if (Event::handle('StartNoticeListPrefill', array(&$notices, $avatarSize))) {
+
             // Prefill attachments
             Notice::fillAttachments($notices);
             // Prefill attachments
@@ -148,5 +150,8 @@ class NoticeList extends Widget
                 Memcached_DataObject::pivotGet('Fave', 'notice_id', $ids, array('user_id' => $p->id));
                 Memcached_DataObject::pivotGet('Notice', 'repeat_of', $ids, array('profile_id' => $p->id));
             }
+
+            Event::handle('EndNoticeListPrefill', array(&$notices, &$profiles, $avatarSize));
+        }
     }
 }