C:/xampp/htdocs/moodle/admin/tool/qeupgradehelper/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/>.

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


class tool_qeupgradehelper_renderer extends plugin_renderer_base {

    public function index_page($detected, array $actions) {
        $output = '';
        $output .= $this->header();
        $output .= $this->heading(get_string('pluginname', 'tool_qeupgradehelper'));
        $output .= $this->box($detected);
        $output .= html_writer::start_tag('ul');
        foreach ($actions as $action) {
            $output .= html_writer::tag('li',
                    html_writer::link($action->url, $action->name) . ' - ' .
                    $action->description);
        }
        $output .= html_writer::end_tag('ul');
        $output .= $this->footer();
        return $output;
    }

    public function simple_message_page($message) {
        $output = '';
        $output .= $this->header();
        $output .= $this->heading($message);
        $output .= $this->back_to_index();
        $output .= $this->footer();
        return $output;
    }

    public function quiz_list_page(tool_qeupgradehelper_quiz_list $quizzes,
            $numveryoldattemtps = null) {
        $output = '';
        $output .= $this->header();
        $output .= $this->heading($quizzes->title);
        $output .= $this->box($quizzes->intro);

        $table = new html_table();
        $table->head = $quizzes->get_col_headings();

        $rowcount = 0;
        foreach ($quizzes->quizlist as $quizinfo) {
            $table->data[$rowcount] = $quizzes->get_row($quizinfo);
            if ($class = $quizzes->get_row_class($quizinfo)) {
                $table->rowclasses[$rowcount] = $class;
            }
            $rowcount += 1;
        }
        $table->data[] = $quizzes->get_total_row();
        $output .= html_writer::table($table);

        if ($numveryoldattemtps) {
            $output .= $this->box(get_string('veryoldattemtps', 'tool_qeupgradehelper',
                    $numveryoldattemtps));
        }

        $output .= $this->back_to_index();
        $output .= $this->footer();
        return $output;
    }

    public function convert_quiz_are_you_sure($quizsummary) {
        $output = '';
        $output .= $this->header();
        $output .= $this->heading(get_string('areyousure', 'tool_qeupgradehelper'));

        $params = array('quizid' => $quizsummary->id, 'confirmed' => 1, 'sesskey' => sesskey());
        $output .= $this->confirm(get_string('areyousuremessage', 'tool_qeupgradehelper', $quizsummary),
                new single_button(tool_qeupgradehelper_url('convertquiz', $params), get_string('yes')),
                tool_qeupgradehelper_url('listtodo'));

        $output .= $this->footer();
        return $output;
    }

    public function reset_quiz_are_you_sure($quizsummary) {
        $output = '';
        $output .= $this->header();
        $output .= $this->heading(get_string('areyousure', 'tool_qeupgradehelper'));

        $params = array('quizid' => $quizsummary->id, 'confirmed' => 1, 'sesskey' => sesskey());
        $output .= $this->confirm(get_string('areyousureresetmessage', 'tool_qeupgradehelper', $quizsummary),
                new single_button(tool_qeupgradehelper_url('resetquiz', $params), get_string('yes')),
                tool_qeupgradehelper_url('listupgraded'));

        $output .= $this->footer();
        return $output;
    }

    public function end_of_page_link($url, $text) {
        return html_writer::tag('div', html_writer::link($url ,$text),
                array('class' => 'mdl-align'));
    }

    public function back_to_index() {
        return $this->end_of_page_link(tool_qeupgradehelper_url('index'),
                get_string('backtoindex', 'tool_qeupgradehelper'));
    }
}