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renderer.php
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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* A custom renderer class used by the dialogue module.
*
* @package mod_dialogue
* @copyright 2013 Troy Williams
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class mod_dialogue_renderer extends plugin_renderer_base {
/**
* Render conversation, just the conversation
*
* @param mod_dialogue\conversation $conversation
* @return string
*/
public function render_conversation(mod_dialogue\conversation $conversation) {
global $USER;
$context = $conversation->dialogue->context; // Fetch context from parent dialogue.
$cm = $conversation->dialogue->cm; // Fetch course module from parent dialogue.
$today = strtotime("today");
$yearago = strtotime("-1 year");
$html = '';
$html .= html_writer::start_div('conversation-heading');
$html .= html_writer::tag('h3', $conversation->subject, array('class' => 'heading'));
if ($conversation->state == \mod_dialogue\dialogue::STATE_OPEN) {
$span = html_writer::tag('span', get_string('open', 'dialogue'), array('class' => "state-indicator state-open"));
$html .= html_writer::tag('h3', $span, array('class' => 'heading pull-right'));
}
if ($conversation->state == \mod_dialogue\dialogue::STATE_CLOSED) {
$span = html_writer::tag('span', get_string('closed', 'dialogue'), array('class' => "state-indicator state-closed"));
$html .= html_writer::tag('h3', $span, array('class' => 'heading pull-right'));
}
if ($conversation->state == \mod_dialogue\dialogue::STATE_BULK_AUTOMATED) {
$span = html_writer::tag('span', get_string('bulkopener', 'dialogue'), array('class' => "state-indicator state-bulk"));
$html .= html_writer::tag('h3', $span, array('class' => 'heading pull-right'));
}
$html .= html_writer::end_div(); // Close header.
$html .= html_writer::start_div('conversation');
$messageid = 'm' . $conversation->messageid;
$html .= html_writer::tag('a', '', array('id' => $messageid));
$avatar = $this->output->user_picture($conversation->author, array('size' => true, 'class' => 'userpicture img-rounded'));
$html .= html_writer::div($avatar, 'conversation-object pull-left');
$html .= html_writer::start_div('conversation-body');
$datestrings = (object) dialogue_get_humanfriendly_dates($conversation->timemodified);
$datestrings->fullname = fullname($conversation->author);
if ($conversation->timemodified >= $today) {
$openedbyheader = get_string('openedbytoday', 'dialogue', $datestrings);
} else if ($conversation->timemodified >= $yearago) {
$openedbyheader = get_string('openedbyshortyear', 'dialogue', $datestrings);
} else {
$openedbyheader = get_string('openedbyfullyear', 'dialogue', $datestrings);
}
$html .= html_writer::start_div('conversation-header');
$html .= html_writer::tag('span', $openedbyheader, array('class' => 'conversation-openedby pull-left'));
$html .= html_writer::start_tag('ul', array('class' => "message-actions pull-right"));
if ($conversation->state == \mod_dialogue\dialogue::STATE_OPEN) {
$canclose = ((has_capability('mod/dialogue:close', $context) and $USER->id == $conversation->author->id) or
has_capability('mod/dialogue:closeany', $context));
if ($canclose) {
$lockicon = html_writer::tag('i', '', array('class' => "fa fa-lock"));
$html .= html_writer::start_tag('li');
$closeurl = new moodle_url('/mod/dialogue/conversation.php');
$closeurl->param('id', $cm->id);
$closeurl->param('conversationid', $conversation->conversationid);
$closeurl->param('action', 'close');
$html .= html_writer::link($closeurl, get_string('closeconversation', 'dialogue') . $lockicon);
$html .= html_writer::end_tag('li');
}
}
$candelete = ((has_capability('mod/dialogue:delete', $context) and $USER->id == $conversation->author->id) or
has_capability('mod/dialogue:deleteany', $context));
if ($candelete) {
$html .= html_writer::start_tag('li');
$trashicon = html_writer::tag('i', '', array('class' => "fa fa-trash-o"));
$deleteurl = new moodle_url('/mod/dialogue/conversation.php');
$deleteurl->param('id', $cm->id);
$deleteurl->param('conversationid', $conversation->conversationid);
$deleteurl->param('action', 'delete');
$html .= html_writer::link($deleteurl, get_string('deleteconversation', 'dialogue') . $trashicon);
$html .= html_writer::end_tag('li');
}
$html .= html_writer::end_tag('ul');
$html .= html_writer::empty_tag('br');
$html .= html_writer::end_div();
$html .= html_writer::empty_tag('hr');
$html .= $conversation->bodyhtml;
$html .= $this->render_attachments($conversation->attachments);
$html .= html_writer::end_div();
// Display list of people who have received this conversation
// Todo - display rest of information, which group, has completed? etc.
if ($conversation->state == \mod_dialogue\dialogue::STATE_BULK_AUTOMATED) {
$receivers = $conversation->receivedby;
if ($receivers) {
$html .= html_writer::start_div('participants receivedby');
$count = count($receivers);
if ($count == 1) {
$openedwithstring = get_string('conversationopenedwith', 'dialogue');
} else {
$openedwithstring = get_string('conversationsopenedwith', 'dialogue', $count);
}
$html .= html_writer::span($openedwithstring);
$html .= html_writer::start_tag('table', array('class' => 'table'));
$html .= html_writer::start_tag('tbody');
$sentonstring = new lang_string('senton', 'dialogue');
foreach ($receivers as $receivedby) {
$person = dialogue_get_user_details($conversation->dialogue, $receivedby->userid);
$html .= html_writer::start_tag('tr');
$picture = $this->output->user_picture($person, array('class' => 'userpicture img-rounded', 'size' => 20));
$html .= html_writer::tag('td', $picture);
$html .= html_writer::tag('td', fullname($person));
$html .= html_writer::tag('td', $sentonstring . userdate($receivedby->timemodified));
$html .= html_writer::end_tag('tr');
}
$html .= html_writer::end_tag('tbody');
$html .= html_writer::end_tag('table');
$html .= html_writer::end_div();
}
}
// This should only display on open and closed conversations todo - tidy + css.
$participants = $conversation->participants;
if ($participants) {
$html .= html_writer::start_div('participants');
$html .= html_writer::tag('strong', count($participants));
$html .= ' ' . get_string('participants', 'dialogue');
foreach ($participants as $participant) {
$picture = $this->output->user_picture($participant, array('class' => 'userpicture img-rounded', 'size' => 20));
$html .= html_writer::tag('span', $picture . ' ' . fullname($participant), array('class' => 'participant'));
}
$html .= html_writer::end_div();
}
$html .= html_writer::end_div(); // End of main conversation.
$html .= html_writer::empty_tag('hr');
return $html;
}
/**
* Render a list of conversations in a dialogue for a particular user.
*
* @param \mod_dialogue\conversations $conversations
* @return string
*/
public function conversation_listing(\mod_dialogue\conversations $conversations) {
$dialogue = $conversations->dialogue;
$cm = $conversations->dialogue->cm;
$list = array();
$html = '';
$rowsmatched = $conversations->rows_matched();
if ($rowsmatched) {
$list = $conversations->records();
}
if (empty($list)) {
$html .= '<br/><br/>';
$html .= $this->output->notification(get_string('noconversationsfound', 'dialogue'), 'notifyproblem');
} else {
$today = strtotime("today");
$yearago = strtotime("-1 year");
$rowsreturned = count($list);
$html .= html_writer::start_div('listing-meta');
$html .= html_writer::tag('h6', get_string('displaying', 'dialogue'));
$a = new stdClass();
$a->start = ($conversations->page) ? $conversations->page * $conversations->limit : 1;
$a->end = $conversations->page * $conversations->limit + $rowsreturned;
$a->total = $rowsmatched;
$html .= html_writer::tag('h6', get_string('listpaginationheader', 'dialogue', $a), array('class' => 'pull-right'));
$html .= html_writer::end_div();
$html .= html_writer::start_tag('table', array('class' => 'conversation-list table table-hover table-condensed'));
$html .= html_writer::start_tag('tbody');
foreach ($list as $record) {
$datattributes = array('data-redirect' => 'conversation',
'data-action' => 'view',
'data-conversationid' => $record->conversationid);
$html .= html_writer::start_tag('tr', $datattributes);
$statelabel = '';
if ($record->state == \mod_dialogue\dialogue::STATE_CLOSED) {
$statelabel = html_writer::tag('span', get_string('closed', 'dialogue'),
array('class' => 'state-indicator state-closed'));
}
$html .= html_writer::tag('td', $statelabel);
if (isset($record->unread)) {
$badge = '';
$unreadcount = $record->unread;
if ($unreadcount > 0) {
$badgeclass = 'badge label-info';
$badge = html_writer::span($unreadcount, $badgeclass,
array('title' => get_string('numberunread', 'dialogue', $unreadcount)));
}
$html .= html_writer::tag('td', $badge);
}
if (isset($record->userid)) {
$displayuser = dialogue_get_user_details($dialogue, $record->userid);
$avatar = $this->output->user_picture($displayuser, array('class' => 'userpicture img-rounded', 'size' => 48));
$html .= html_writer::tag('td', $avatar);
$html .= html_writer::tag('td', fullname($displayuser));
}
if (isset($record->subject) and isset($record->body)) {
$subject = empty($record->subject) ? get_string('nosubject', 'dialogue') : $record->subject;
$summaryline = dialogue_generate_summary_line($subject, $record->body, $record->bodyformat);
$html .= html_writer::start_tag('td');
$html .= html_writer::start_div();
$html .= $summaryline;
$participants = dialogue_get_conversation_participants($dialogue, $record->conversationid);
$html .= html_writer::start_div();
foreach ($participants as $participantid) {
$participant = dialogue_get_user_details($dialogue, $participantid);
$picture = $this->output->user_picture($participant,
array('class' => 'userpicture img-rounded', 'size' => 16));
$html .= html_writer::tag('span', $picture.' '.fullname($participant),
array('class' => 'participant'));
}
$html .= html_writer::start_div();
$html .= html_writer::end_div();
$html .= html_writer::end_tag('td');
}
if (isset($record->timemodified)) {
$datestrings = (object) dialogue_get_humanfriendly_dates($record->timemodified);
if ($record->timemodified >= $today) {
$datetime = $datestrings->timepast;
} else if ($record->timemodified >= $yearago) {
$datetime = get_string('dateshortyear', 'dialogue', $datestrings);
} else {
$datetime = get_string('datefullyear', 'dialogue', $datestrings);
}
$html .= html_writer::tag('td', $datetime, array('title' => userdate($record->timemodified)));
}
$viewurlparams = array('id' => $cm->id, 'conversationid' => $record->conversationid, 'action' => 'view');
$viewlink = html_writer::link(new moodle_url('conversation.php', $viewurlparams),
get_string('view'));
$html .= html_writer::tag('td', $viewlink, array('class' => 'nonjs-control'));
$html .= html_writer::end_tag('tr');
}
$html .= html_writer::end_tag('tbody');
$html .= html_writer::end_tag('table');
$pagination = new paging_bar($rowsmatched, $conversations->page, $conversations->limit, $this->page->url);
$html .= $this->output->render($pagination);
}
return $html;
}
/**
* Render a reply related to conversation.
*
* @param \mod_dialogue\reply $reply
* @return string
*/
public function render_reply(\mod_dialogue\reply $reply) {
$context = $reply->dialogue->context; // Fetch context from parent dialogue.
$cm = $reply->dialogue->cm; // Fetch course module from parent dialogue.
$conversation = $reply->conversation; // Fetch parent conversation.
$today = strtotime("today");
$yearago = strtotime("-1 year");
$html = '';
$html .= html_writer::start_div('conversation');
$messageid = 'm' . $reply->messageid;
$html .= html_writer::tag('a', '', array('id' => $messageid));
$avatar = $this->output->user_picture($reply->author, array('size' => true, 'class' => 'userpicture img-rounded'));
$html .= html_writer::div($avatar, 'conversation-object pull-left');
$html .= html_writer::start_div('conversation-body');
$datestrings = (object) dialogue_get_humanfriendly_dates($reply->timemodified);
$datestrings->fullname = fullname($reply->author);
if ($reply->timemodified >= $today) {
$repliedbyheader = get_string('repliedbytoday', 'dialogue', $datestrings);
} else if ($reply->timemodified >= $yearago) {
$repliedbyheader = get_string('repliedbyshortyear', 'dialogue', $datestrings);
} else {
$repliedbyheader = get_string('repliedbyfullyear', 'dialogue', $datestrings);
}
$html .= html_writer::start_div('reply-header');
$html .= html_writer::tag('span', $repliedbyheader, array('class' => 'reply-openedby pull-left'));
$html .= html_writer::empty_tag('br');
$html .= html_writer::end_div();
$html .= html_writer::empty_tag('hr');
$html .= $reply->bodyhtml;
$html .= $this->render_attachments($reply->attachments);
$html .= html_writer::end_div();
$html .= html_writer::end_div();
return $html;
}
/**
* Render attachments associated with a message - conversation or reply.
*
* @param array $attachments
* @return string
*/
public function render_attachments(array $attachments) {
global $CFG;
$html = '';
if ($attachments) {
$numattachments = count($attachments);
$attachmentheader = ($numattachments > 1) ? get_string('numberattachments', 'dialogue', $numattachments) :
get_string('attachment', 'dialogue');
$html .= html_writer::start_div('attachments');
$html .= html_writer::tag('h5', $attachmentheader);
foreach ($attachments as $file) {
$contextid = $file->get_contextid();
$itemid = $file->get_itemid();
$filename = $file->get_filename();
$filesize = $file->get_filesize();
$mimetype = $file->get_mimetype();
$viewurl = \moodle_url::make_file_url($CFG->wwwroot, '/pluginfile.php/' . $contextid .
'/mod_dialogue/attachment/' . $itemid . '/' . $filename);
$previewurl = clone($viewurl);
$previewurl->param('preview', 'thumb');
$downloadurl = clone($viewurl);
$downloadurl->param('forcedownload', 'true');
if ($file->is_valid_image()) {
$html .= html_writer::start_tag('table');
$html .= html_writer::start_tag('tbody');
$html .= html_writer::start_tag('tr');
$html .= html_writer::start_tag('td');
$html .= html_writer::link($viewurl, html_writer::empty_tag('img',
array('src' => $previewurl->out(), 'class' => 'thumbnail', 'alt' => $mimetype)));
$html .= html_writer::end_tag('td');
$html .= html_writer::start_tag('td');
$html .= html_writer::tag('b', $filename);
$html .= html_writer::empty_tag('br');
$html .= html_writer::tag('span', display_size($filesize), array('class' => 'meta-filesize'));
$html .= html_writer::link($viewurl, html_writer::tag('span', get_string('view')));
$html .= html_writer::link($downloadurl, html_writer::tag('span', get_string('download')));
$html .= html_writer::end_tag('td');
$html .= html_writer::end_tag('tr');
$html .= html_writer::end_tag('tbody');
$html .= html_writer::end_tag('table');
} else {
$html .= html_writer::start_tag('table');
$html .= html_writer::start_tag('tbody');
$html .= html_writer::start_tag('tr');
$html .= html_writer::start_tag('td');
$html .= html_writer::link($downloadurl, html_writer::empty_tag('img',
array('src' => $this->output->image_url(file_mimetype_icon($mimetype)),
'class' => 'icon', 'alt' => $mimetype)));
$html .= html_writer::end_tag('td');
$html .= html_writer::start_tag('td');
$html .= html_writer::tag('i', $filename);
$html .= html_writer::empty_tag('br');
$html .= html_writer::tag('span', display_size($filesize), array('class' => 'meta-filesize'));
$html .= html_writer::link($downloadurl, html_writer::tag('span', get_string('download')));
$html .= html_writer::end_tag('td');
$html .= html_writer::end_tag('tr');
$html .= html_writer::end_tag('tbody');
$html .= html_writer::end_tag('table');
}
$html .= html_writer::empty_tag('br'); // Break up attachments spacing.
}
$html .= html_writer::end_div();
}
return $html;
}
/**
* State button group
* @return string
* @throws coding_exception
*/
public function state_button_group() {
$stateurl = clone($this->page->url);
$html = '';
$openlink = '';
$closedlink = '';
// Get state from url param.
$state = $stateurl->get_param('state');
// State open, disable and enable closed button.
if ($state == \mod_dialogue\dialogue::STATE_OPEN) {
$stateurl->param('state', \mod_dialogue\dialogue::STATE_CLOSED);
$openlink = html_writer::link('#', html_writer::tag('span', get_string('open', 'dialogue')),
array('class' => 'btn btn-small disabled'));
$closedlink = html_writer::link($stateurl, html_writer::tag('span', get_string('closed', 'dialogue')),
array('class' => 'btn btn-small'));
}
// State closed, disable and enable open button.
if ($state == \mod_dialogue\dialogue::STATE_CLOSED) {
$stateurl->param('state', \mod_dialogue\dialogue::STATE_OPEN);
$openlink = html_writer::link($stateurl, html_writer::tag('span', get_string('open', 'dialogue')),
array('class' => 'btn btn-small'));
$closedlink = html_writer::link('#', html_writer::tag('span', get_string('closed', 'dialogue')),
array('class' => 'btn btn-small disabled'));
}
$html .= html_writer::start_div('btn-group');
$html .= $openlink; // Open state link.
$html .= $closedlink; // Close state link.
$html .= html_writer::end_div();
return $html;
}
/**
* Builds and returns HTML needed to render the sort by drop down for conversation
* lists.
*
* @param array $options
* @param string $sort
* @param string $direction
* @return string $html
* @throws moodle_exception
*/
public function list_sortby($options, $sort, $direction) {
$html = '';
$nonjsoptions = array();
if (!in_array($sort, array_keys($options))) {
throw new moodle_exception("Not a sort option");
}
$pageurl = clone($this->page->url);
$this->page->url->param('page', 0); // Reset pagination.
$html .= html_writer::start_div('dropdown-group pull-right');
$html .= html_writer::start_div('js-control btn-group pull-right');
$html .= html_writer::start_tag('button', array('data-toggle' => 'dropdown',
'class' => 'btn btn-small dropdown-toggle'));
$html .= get_string('sortedby', 'dialogue', get_string($sort, 'dialogue'));
$html .= html_writer::end_tag('button');
$html .= html_writer::start_tag('ul', array('class' => 'dropdown-menu'));
foreach ($options as $option => $settings) {
$string = get_string($option, 'dialogue');
$nonjsoptions[$option] = $string;
if ($settings['directional'] == false) {
$url = clone($this->page->url);
$url->param('sort', $option);
$html .= html_writer::start_tag('li');
$html .= html_writer::link($url, $string);
$html .= html_writer::end_tag('li');
continue;
}
if ($option == $sort) {
$sortdirection = ($direction == 'desc') ? 'asc' : 'desc';
} else {
$sortdirection = \core_text::strtolower($settings['default']);
}
$url = clone($this->page->url);
$url->param('sort', $option);
$url->param('direction', $sortdirection);
// Font awesome icon.
$faclass = "fa fa-sort-{$settings['type']}-{$sortdirection} pull-right";
$faicon = html_writer::tag('i', '', array('class' => $faclass));
$html .= html_writer::start_tag('li');
$html .= html_writer::link($url, $faicon . $string);
$html .= html_writer::end_tag('li');
}
$html .= html_writer::end_tag('ul');
$html .= html_writer::end_div(); // End of js-control.
// Important: non javascript control must be after javascript control else layout borked in chrome.
$select = new single_select($pageurl, 'sort', $nonjsoptions, $sort, null, 'orderbyform');
$select->method = 'post';
$nonjscontrol = $this->output->render($select);
$html .= html_writer::div($nonjscontrol, 'nonjs-control');
$html .= html_writer::end_div(); // End of container.
return $html;
}
/**
* sort by dropdown.
* @param array $options
* @return string
* @throws coding_exception
*/
public function sort_by_dropdown($options) {
$html = '';
$strings = array();
foreach ($options as $option) {
$strings[$option] = get_string($option, 'dialogue');
}
$pageurl = clone($this->page->url);
$this->page->url->param('page', 0); // Reset pagination.
$sort = $this->page->url->get_param('sort');
if (!in_array($sort, $options)) {
throw new coding_exception('$this->page sort param is not in options');
}
$html .= html_writer::start_div('dropdown-group pull-right');
$html .= html_writer::start_div('js-control btn-group pull-right');
$html .= html_writer::start_tag('button', array('data-toggle' => 'dropdown',
'class' => 'btn btn-small dropdown-toggle'));
$html .= get_string('sortedby', 'dialogue', get_string($sort, 'dialogue'));
$html .= html_writer::tag('tag', null, array('class' => 'caret'));
$html .= html_writer::end_tag('button');
$html .= html_writer::start_tag('ul', array('class' => 'dropdown-menu'));
foreach ($options as $option) {
$url = clone($this->page->url);
$url->param('sort', $option);
$html .= html_writer::start_tag('li');
$html .= html_writer::link($url, ucfirst(get_string($option, 'dialogue')));
$html .= html_writer::end_tag('li');
}
$html .= html_writer::end_tag('ul');
$html .= html_writer::end_div(); // End of js-control.
// Important: non javascript control must be after javascript control else layout borked in chrome.
$select = new single_select($pageurl, 'sort', $strings, $sort, null, 'orderbyform');
$select->method = 'post';
$nonjscontrol = $this->output->render($select);
$html .= html_writer::div($nonjscontrol, 'nonjs-control');
$html .= html_writer::end_div(); // End of container.
return $html;
}
/**
* Tab navigation
* @param \mod_dialogue\dialogue $dialogue
* @return string
* @throws coding_exception
* @throws moodle_exception
*/
public function tab_navigation(\mod_dialogue\dialogue $dialogue) {
$config = $dialogue->config;
$context = $dialogue->context;
$cm = $dialogue->cm;
$html = '';
$currentpage = basename($this->page->url->out_omit_querystring(), '.php');
$html .= html_writer::start_tag('ul', array('class' => 'nav nav-tabs'));
// Link main conversation listing.
$active = ($currentpage == 'view') ? array('class' => 'active') : array();
$html .= html_writer::start_tag('li', $active);
$viewurl = new moodle_url('view.php', array('id' => $cm->id));
$html .= html_writer::link($viewurl, get_string('viewconversations', 'dialogue'));
$html .= html_writer::end_tag('li');
// Experimental: link conversation by role listing.
if (!empty($config->viewconversationsbyrole) and has_capability('mod/dialogue:viewbyrole', $context)) {
$active = ($currentpage == 'viewconversationsbyrole') ? array('class' => 'active') : array();
$html .= html_writer::start_tag('li', $active);
$viewurl = new moodle_url('viewconversationsbyrole.php', array('id' => $cm->id));
$html .= html_writer::link($viewurl, get_string('viewconversationsbyrole', 'dialogue'));
$html .= html_writer::end_tag('li');
}
// Link to users draft listing.
$active = ($currentpage == 'drafts') ? array('class' => 'active') : array();
$html .= html_writer::start_tag('li', $active);
$draftsurl = new moodle_url('drafts.php', array('id' => $cm->id));
$html .= html_writer::link($draftsurl, get_string('drafts', 'dialogue'));
$html .= html_writer::end_tag('li');
// Link to bulk open rules listing.
if (has_any_capability(array('mod/dialogue:bulkopenrulecreate', 'mod/dialogue:bulkopenruleeditany'), $context)) {
$active = ($currentpage == 'bulkopenrules') ? array('class' => 'active') : array();
$html .= html_writer::start_tag('li', $active);
$bulkopenrulesurl = new moodle_url('bulkopenrules.php', array('id' => $cm->id));
$html .= html_writer::link($bulkopenrulesurl, get_string('bulkopenrules', 'dialogue'));
$html .= html_writer::end_tag('li');
}
// Open discussion button.
if (has_capability('mod/dialogue:open', $context)) {
$createurl = new moodle_url('conversation.php', array('id' => $cm->id, 'action' => 'create'));
$html .= html_writer::link($createurl, get_string('create'), array('class' => 'btn-create pull-right'));
}
$html .= html_writer::end_tag('ul');
return $html;
}
}