+ $notices = Notice::conversationStream($this->id, null, null);
+
+ $ct = new ConversationTree($notices, $this);
+
+ $cnt = $ct->show();
+ }
+
+ function isReadOnly()
+ {
+ return true;
+ }
+}
+
+/**
+ * Conversation tree
+ *
+ * The widget class for displaying a hierarchical list of notices.
+ *
+ * @category Widget
+ * @package StatusNet
+ * @author Evan Prodromou <evan@status.net>
+ * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
+ * @link http://status.net/
+ */
+
+class ConversationTree extends NoticeList
+{
+ var $tree = null;
+ var $table = null;
+
+ /**
+ * Show the tree of notices
+ *
+ * @return void
+ */
+
+ function show()
+ {
+ $cnt = $this->_buildTree();
+
+ $this->out->elementStart('div', array('id' =>'notices_primary'));
+ $this->out->element('h2', null, _('Notices'));
+ $this->out->elementStart('ol', array('class' => 'notices xoxo'));
+
+ if (array_key_exists('root', $this->tree)) {
+ $rootid = $this->tree['root'][0];
+ $this->showNoticePlus($rootid);
+ }
+
+ $this->out->elementEnd('ol');
+ $this->out->elementEnd('div');
+
+ return $cnt;
+ }
+
+ function _buildTree()
+ {
+ $cnt = 0;
+
+ $this->tree = array();
+ $this->table = array();
+
+ while ($this->notice->fetch()) {
+
+ $cnt++;
+
+ $id = $this->notice->id;
+ $notice = clone($this->notice);
+
+ $this->table[$id] = $notice;
+
+ if (is_null($notice->reply_to)) {
+ $this->tree['root'] = array($notice->id);
+ } else if (array_key_exists($notice->reply_to, $this->tree)) {
+ $this->tree[$notice->reply_to][] = $notice->id;
+ } else {
+ $this->tree[$notice->reply_to] = array($notice->id);
+ }
+ }
+
+ return $cnt;
+ }
+
+ /**
+ * Shows a notice plus its list of children.
+ *
+ * @param integer $id ID of the notice to show
+ *
+ * @return void
+ */
+
+ function showNoticePlus($id)
+ {
+ $notice = $this->table[$id];
+
+ // We take responsibility for doing the li
+
+ $this->out->elementStart('li', array('class' => 'hentry notice',
+ 'id' => 'notice-' . $id));