IMP_Basic_Thread::_init PHP Method

    protected function _init()
    {
        global $injector, $notification, $page_output;
        $imp_mailbox = $this->indices->mailbox->list_ob;
        switch ($mode = $this->vars->get('mode', 'thread')) {
            case 'thread':
                /* THREAD MODE: Make sure we have a valid index. */
                list($m, $u) = $this->indices->getSingle();
                $imp_indices = $imp_mailbox->getFullThread($u, $m);
                break;
            default:
                /* MSGVIEW MODE: Make sure we have a valid list of messages. */
                $imp_indices = $this->indices;
                break;
        }
        if (!count($imp_indices)) {
            $notification->push(_("Could not load message."), 'horde.error');
            $this->indices->mailbox->url('mailbox')->redirect();
        }
        /* Run through action handlers. */
        switch ($this->vars->actionID) {
            case 'add_address':
                try {
                    $addr = new Horde_Mail_Rfc822_Address($this->vars->address);
                    $addr->personal = $this->vars->name;
                    $contact_link = $injector->getInstance('IMP_Contacts')->addAddress($addr);
                    $notification->push(sprintf(_("Entry \"%s\" was successfully added to the address book"), $contact_link), 'horde.success', array('content.raw'));
                } catch (Horde_Exception $e) {
                    $notification->push($e);
                }
                break;
        }
        $msgs = $tree = array();
        $subject = '';
        $query = new Horde_Imap_Client_Fetch_Query();
        $query->envelope();
        /* Force images to show in HTML data. */
        $injector->getInstance('IMP_Images')->alwaysShow = true;
        $multiple = count($imp_indices) > 1;
        foreach ($imp_indices as $ob) {
            $imp_imap = $ob->mbox->imp_imap;
            $fetch_res = $imp_imap->fetch($ob->mbox, $query, array('ids' => $imp_imap->getIdsOb($ob->uids)));
            foreach ($ob->uids as $idx) {
                $envelope = $fetch_res[$idx]->getEnvelope();
                /* Get the body of the message. */
                $curr_msg = $curr_tree = array();
                $contents = $injector->getInstance('IMP_Factory_Contents')->create($ob->mbox->getIndicesOb($idx));
                $mime_id = $contents->findBody();
                if ($contents->canDisplay($mime_id, IMP_Contents::RENDER_INLINE)) {
                    $ret = $contents->renderMIMEPart($mime_id, IMP_Contents::RENDER_INLINE);
                    $ret = reset($ret);
                    $curr_msg['body'] = $ret['data'];
                    if (!empty($ret['js'])) {
                        $page_output->addInlineScript($ret['js'], true);
                    }
                } else {
                    $curr_msg['body'] = '<em>' . _("There is no text that can be displayed inline.") . '</em>';
                }
                $curr_msg['idx'] = $idx;
                /* Get headers for the message. */
                $date_ob = new IMP_Message_Date($envelope->date);
                $curr_msg['date'] = $date_ob->format($date_ob::DATE_LOCAL);
                if ($this->indices->mailbox->special_outgoing) {
                    $curr_msg['addr_to'] = true;
                    $curr_msg['addr'] = _("To:") . ' ' . $this->_buildAddressLinks($envelope->to, Horde::selfUrlParams());
                    $addr = _("To:") . ' ' . htmlspecialchars($envelope->to->first()->label, ENT_COMPAT, 'UTF-8');
                } else {
                    $from = $envelope->from;
                    $curr_msg['addr_to'] = false;
                    $curr_msg['addr'] = $this->_buildAddressLinks($from, Horde::selfUrlParams());
                    $addr = htmlspecialchars($from->first()->label, ENT_COMPAT, 'UTF-8');
                }
                $subject_header = htmlspecialchars($envelope->subject, ENT_COMPAT, 'UTF-8');
                switch ($mode) {
                    case 'thread':
                        if (empty($subject)) {
                            $subject = preg_replace('/^re:\\s*/i', '', $subject_header);
                        }
                        $curr_msg['link'] = $multiple ? Horde::widget(array('url' => '#display', 'title' => _("Thread List"), 'nocheck' => true)) : '';
                        $curr_tree['subject'] = $imp_mailbox->getThreadOb($imp_mailbox->getArrayIndex($fetch_res[$idx]->getUid(), $ob->mbox) + 1)->img;
                        break;
                    default:
                        $curr_msg['link'] = Horde::widget(array('url' => '#display', 'title' => _("Back to Multiple Message View Index"), 'nocheck' => true));
                        $curr_tree['subject'] = '';
                        break;
                }
                $curr_tree['subject'] .= Horde::link('#i' . $idx) . Horde_String::truncate($subject_header, 60) . '</a> (' . $addr . ')';
                $msgs[] = $curr_msg;
                $tree[] = $curr_tree;
            }
        }
        /* Flag messages as seen. */
        $imp_indices->flag(array(Horde_Imap_Client::FLAG_SEEN));
        $view = new Horde_View(array('templatePath' => IMP_TEMPLATES . '/thread'));
        if ($mode == 'thread') {
            $view->subject = $subject;
            $view->thread = true;
        } else {
            $view->subject = sprintf(_("%d Messages"), count($msgs));
        }
        $view->messages = $msgs;
        $view->tree = $tree;
        $page_output->addScriptFile('stripe.js', 'horde');
        $page_output->addScriptFile('toggle_quotes.js', 'horde');
        $page_output->noDnsPrefetch();
        $t_css = new Horde_Themes_Element('thread.css');
        $page_output->addStylesheet($t_css->fs, $t_css->uri);
        $v_css = new Horde_Themes_Element('dynamic/message_view.css');
        $page_output->addStylesheet($v_css->fs, $v_css->uri);
        $this->output = $view->render('thread');
        $page_output->topbar = $page_output->sidebar = false;
        $this->header_params = array('html_id' => 'htmlAllowScroll');
        $this->title = $mode == 'thread' ? _("Thread View") : _("Multiple Message View");
    }