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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/>.
/**
* Settings block
*
* @package block_settings
* @copyright 2010 Sam Hemelryk
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class block_settings_renderer extends plugin_renderer_base {
public function settings_tree(settings_navigation $navigation) {
$count = 0;
foreach ($navigation->children as &$child) {
$child->preceedwithhr = ($count!==0);
if ($child->display) {
$count++;
}
}
$navigationattrs = array(
'class' => 'block_tree list',
'role' => 'tree',
'data-ajax-loader' => 'block_navigation/site_admin_loader');
$content = $this->navigation_node($navigation, $navigationattrs);
if (isset($navigation->id) && !is_numeric($navigation->id) && !empty($content)) {
$content = $this->output->box($content, 'block_tree_box', $navigation->id);
}
return $content;
}
/**
* Build the navigation node.
*
* @param navigation_node $node the navigation node object.
* @param array $attrs list of attributes.
* @param int $depth the depth, default to 1.
* @return string the navigation node code.
*/
protected function navigation_node(navigation_node $node, $attrs=array(), $depth = 1) {
$items = $node->children;
// exit if empty, we don't want an empty ul element
if ($items->count()==0) {
return '';
}
// array of nested li elements
$lis = array();
$number = 0;
foreach ($items as $item) {
$number++;
if (!$item->display) {
continue;
}
$isbranch = ($item->children->count()>0 || $item->nodetype==navigation_node::NODETYPE_BRANCH);
if ($isbranch) {
$item->hideicon = true;
}
$content = $this->output->render($item);
$id = $item->id ? $item->id : html_writer::random_id();
$ulattr = ['id' => $id . '_group', 'role' => 'group'];
$liattr = ['class' => [$item->get_css_type(), 'depth_'.$depth], 'tabindex' => '-1'];
$pattr = ['class' => ['tree_item'], 'role' => 'treeitem'];
$pattr += !empty($item->id) ? ['id' => $item->id] : [];
$hasicon = (!$isbranch && $item->icon instanceof renderable);
if ($isbranch) {
$liattr['class'][] = 'contains_branch';
if (!$item->forceopen || (!$item->forceopen && $item->collapse) || ($item->children->count() == 0
&& $item->nodetype == navigation_node::NODETYPE_BRANCH)) {
$pattr += ['aria-expanded' => 'false'];
} else {
$pattr += ['aria-expanded' => 'true'];
}
if ($item->requiresajaxloading) {
$pattr['data-requires-ajax'] = 'true';
$pattr['data-loaded'] = 'false';
} else {
$pattr += ['aria-owns' => $id . '_group'];
}
} else if ($hasicon) {
$liattr['class'][] = 'item_with_icon';
$pattr['class'][] = 'hasicon';
}
if ($item->isactive === true) {
$liattr['class'][] = 'current_branch';
}
if (!empty($item->classes) && count($item->classes) > 0) {
$pattr['class'] = array_merge($pattr['class'], $item->classes);
}
$nodetextid = 'label_' . $depth . '_' . $number;
// class attribute on the div item which only contains the item content
$pattr['class'][] = 'tree_item';
if ($isbranch) {
$pattr['class'][] = 'branch';
} else {
$pattr['class'][] = 'leaf';
}
$liattr['class'] = join(' ', $liattr['class']);
$pattr['class'] = join(' ', $pattr['class']);
if (isset($pattr['aria-expanded']) && $pattr['aria-expanded'] === 'false') {
$ulattr += ['aria-hidden' => 'true'];
}
$content = html_writer::tag('p', $content, $pattr) . $this->navigation_node($item, $ulattr, $depth + 1);
if (!empty($item->preceedwithhr) && $item->preceedwithhr===true) {
$content = html_writer::empty_tag('hr') . $content;
}
$liattr['aria-labelledby'] = $nodetextid;
$content = html_writer::tag('li', $content, $liattr);
$lis[] = $content;
}
if (count($lis)) {
if (empty($attrs['role'])) {
$attrs['role'] = 'group';
}
return html_writer::tag('ul', implode("\n", $lis), $attrs);
} else {
return '';
}
}
public function search_form(moodle_url $formtarget, $searchvalue) {
$data = [
'action' => $formtarget->out(false),
'label' => get_string('searchinsettings', 'admin'),
'searchvalue' => $searchvalue
];
return $this->render_from_template('block_settings/search_form', $data);
}
}