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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/>.

/**
 * Library code used by the roles administration interfaces.
 *
 * @package    core_role
 * @copyright  1999 onwards Martin Dougiamas (http://dougiamas.com)
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

defined('MOODLE_INTERNAL') || die();

class core_role_view_role_definition_table extends core_role_define_role_table_advanced {
    public function __construct($context, $roleid) {
        parent::__construct($context, $roleid);
        $this->displaypermissions = array(CAP_ALLOW => $this->allpermissions[CAP_ALLOW]);
        $this->disabled = 'disabled="disabled" ';
    }

public function save_changes() {
        throw new moodle_exception('invalidaccess');
    }

protected function get_name_field($id) {
        return role_get_name($this->role);
    }

protected function get_shortname_field($id) {
        return $this->role->shortname;
    }

protected function get_description_field($id) {
        return role_get_description($this->role);
    }

protected function get_archetype_field($id) {
        if (empty($this->role->archetype)) {
            return get_string('none');
        } else {
            return get_string('archetype'.$this->role->archetype, 'core_role');
        }
    }

protected function get_allow_role_control($type) {
        if ($roles = $this->get_allow_roles_list($type)) {
            $roles = role_fix_names($roles, null, ROLENAME_ORIGINAL, true);
            return implode(', ', $roles);
        } else {
            return get_string('none');
        }
    }

protected function print_show_hide_advanced_button() {
        // Do nothing.
    }

/**
     * Returns HTML risk icons.
     *
     * @return string
     */
    protected function get_role_risks_info() {
        global $OUTPUT;

if (empty($this->roleid)) {
            return '';
        }

$risks = array();
        $allrisks = get_all_risks();
        foreach ($this->capabilities as $capability) {
            $perm = $this->permissions[$capability->name];
            if ($perm != CAP_ALLOW) {
                continue;
            }
            foreach ($allrisks as $type => $risk) {
                if ($risk & (int)$capability->riskbitmask) {
                    $risks[$type] = $risk;
                }
            }
        }

$risksurl = new moodle_url(get_docs_url(s(get_string('risks', 'core_role'))));
        foreach ($risks as $type => $risk) {
            $pixicon = new pix_icon('/i/' . str_replace('risk', 'risk_', $type), get_string($type . 'short', 'admin'));
            $risks[$type] = $OUTPUT->action_icon($risksurl, $pixicon, new popup_action('click', $risksurl));
        }

return implode(' ', $risks);
    }

/**
     * Returns true if the row should be skipped.
     *
     * @param string $capability
     * @return bool
     */
    protected function skip_row($capability) {
        $perm = $this->permissions[$capability->name];
        if ($perm == CAP_INHERIT) {
            // Do not print empty rows in role overview, admins need to know quickly what is allowed and prohibited,
            // if they want to see the list of all capabilities they can go to edit role page.
            return true;
        }
        parent::skip_row($capability);
    }

protected function add_permission_cells($capability) {
        $perm = $this->permissions[$capability->name];
        $permname = $this->allpermissions[$perm];
        $defaultperm = $this->allpermissions[$this->parentpermissions[$capability->name]];
        if ($permname != $defaultperm) {
            $default = get_string('defaultx', 'core_role', $this->strperms[$defaultperm]);
        } else {
            $default = " ";
        }
        return '<td class="' . $permname . '">' . $this->strperms[$permname] . '<span class="note">' .
            $default . '</span></td>';

}
}