gnu-social/lib/threadednoticelist.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* widget for displaying a list of notices
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category UI
* @package StatusNet
* @author Brion Vibber <brion@status.net>
* @copyright 2011 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
if (!defined('GNUSOCIAL')) { exit(1); }
/**
* widget for displaying a list of notices
*
* There are a number of actions that display a list of notices, in
* reverse chronological order. This widget abstracts out most of the
* code for UI for notice lists. It's overridden to hide some
* data for e.g. the profile page.
*
* @category UI
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
* @see Notice
* @see NoticeListItem
* @see ProfileNoticeList
*/
class ThreadedNoticeList extends NoticeList
{
protected $userProfile;
function __construct(Notice $notice, Action $out=null, $profile=-1)
{
parent::__construct($notice, $out);
if (is_int($profile) && $profile == -1) {
$profile = Profile::current();
}
$this->userProfile = $profile;
}
/**
* show the list of notices
*
* "Uses up" the stream by looping through it. So, probably can't
* be called twice on the same list.
*
* @return int count of notices listed.
*/
function show()
{
$this->out->elementStart('div', array('id' =>'notices_primary'));
// TRANS: Header for Notices section.
$this->out->element('h2', null, _m('HEADER','Notices'));
$this->out->elementStart('ol', array('class' => 'notices threaded-notices xoxo'));
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$notices = $this->notice->fetchAll();
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$total = count($notices);
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$notices = array_slice($notices, 0, NOTICES_PER_PAGE);
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$allnotices = self::_allNotices($notices);
self::prefill($allnotices);
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$conversations = array();
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foreach ($notices as $notice) {
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// Collapse repeats into their originals...
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if ($notice->repeat_of) {
$orig = Notice::getKV('id', $notice->repeat_of);
if ($orig instanceof Notice) {
$notice = $orig;
}
}
$convo = $notice->conversation;
if (!empty($conversations[$convo])) {
// Seen this convo already -- skip!
continue;
}
$conversations[$convo] = true;
// Get the convo's root notice
$root = $notice->conversationRoot($this->userProfile);
if ($root instanceof Notice) {
$notice = $root;
}
try {
$item = $this->newListItem($notice);
$item->show();
} catch (Exception $e) {
// we log exceptions and continue
common_log(LOG_ERR, $e->getMessage());
continue;
}
}
$this->out->elementEnd('ol');
$this->out->elementEnd('div');
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return $total;
}
function _allNotices($notices)
{
$convId = array();
foreach ($notices as $notice) {
$convId[] = $notice->conversation;
}
$convId = array_unique($convId);
$allMap = Notice::listGet('conversation', $convId);
$allArray = array();
foreach ($allMap as $convId => $convNotices) {
$allArray = array_merge($allArray, $convNotices);
}
return $allArray;
}
/**
* returns a new list item for the current notice
*
* Recipe (factory?) method; overridden by sub-classes to give
* a different list item class.
*
* @param Notice $notice the current notice
*
* @return NoticeListItem a list item for displaying the notice
*/
function newListItem(Notice $notice)
{
return new ThreadedNoticeListItem($notice, $this->out, $this->userProfile);
}
}