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See Release Notes

  • Bug fixes for general core bugs in 3.10.x will end 8 November 2021 (12 months).
  • Bug fixes for security issues in 3.10.x will end 9 May 2022 (18 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
<?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/>.

/**
 * Drag-and-drop words into sentences question renderer class.
 *
 * @package   qtype_ddwtos
 * @copyright 2010 The Open University
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */


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

require_once($CFG->dirroot . '/question/type/gapselect/rendererbase.php');


/**
 * Generates the output for drag-and-drop words into sentences questions.
 *
 * @copyright  2010 The Open University
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class qtype_ddwtos_renderer extends qtype_elements_embedded_in_question_text_renderer {

    public function formulation_and_controls(question_attempt $qa,
            question_display_options $options) {

        $result = parent::formulation_and_controls($qa, $options);

        $this->page->requires->js_call_amd('qtype_ddwtos/ddwtos', 'init',
                [$qa->get_outer_question_div_unique_id(), $options->readonly]);
        return $result;
    }

    protected function post_qtext_elements(question_attempt $qa,
            question_display_options $options) {
        $result = '';
        $question = $qa->get_question();

        $dragboxs = '';
        foreach ($question->choices as $group => $choices) {
            $dragboxs .= $this->drag_boxes($qa, $group,
                    $question->get_ordered_choices($group), $options);
        }

        $classes = array('answercontainer');
        if ($options->readonly) {
            $classes[] = 'readonly';
        }
        $result .= html_writer::tag('div', $dragboxs, array('class' => implode(' ', $classes)));

        // We abuse the clear_wrong method to output the hidden form fields we
        // want irrespective of whether we are actually clearing the wrong
        // bits of the response.
        if (!$options->clearwrong) {
            $result .= $this->clear_wrong($qa, false);
        }
        return $result;
    }

    protected function embedded_element(question_attempt $qa, $place,
            question_display_options $options) {
        $question = $qa->get_question();
        $group = $question->places[$place];
< $boxcontents = '&#160;' . html_writer::tag('span', < get_string('blank', 'qtype_ddwtos'), array('class' => 'accesshide'));
> $label = $options->add_question_identifier_to_label(get_string('blanknumber', 'qtype_ddwtos', $place)); > $boxcontents = '&#160;' . html_writer::tag('span', $label, array('class' => 'accesshide'));
$value = $qa->get_last_qt_var($question->field($place)); $attributes = array( 'class' => 'place' . $place . ' drop active group' . $group ); if ($options->readonly) { $attributes['class'] .= ' readonly'; } else { $attributes['tabindex'] = '0'; } $feedbackimage = ''; if ($options->correctness) { $response = $qa->get_last_qt_data(); $fieldname = $question->field($place); if (array_key_exists($fieldname, $response)) { $fraction = (int) ($response[$fieldname] == $question->get_right_choice_for($place)); $feedbackimage = $this->feedback_image($fraction); } } return html_writer::tag('span', $boxcontents, $attributes) . ' ' . $feedbackimage; } protected function drag_boxes($qa, $group, $choices, question_display_options $options) { $boxes = ''; foreach ($choices as $key => $choice) { // Bug 8632: long text entry causes bug in drag and drop field in IE. $content = str_replace('-', '&#x2011;', $choice->text); $content = str_replace(' ', '&#160;', $content); $infinite = ''; if ($choice->infinite) { $infinite = ' infinite'; }
< $boxes .= html_writer::tag('span', $content, array( < 'class' => 'draghome choice' . $key . ' group' . < $choice->draggroup . $infinite)) . ' ';
> $boxes .= html_writer::tag('span', $content, [ > 'class' => 'draghome user-select-none choice' . $key . ' group' . > $choice->draggroup . $infinite]) . ' ';
} return html_writer::nonempty_tag('div', $boxes,
< array('class' => 'draggrouphomes' . $choice->draggroup));
> ['class' => 'user-select-none draggrouphomes' . $choice->draggroup]);
} /** * Actually, this question type abuses this method to always output the * hidden fields it needs. * * @param question_attempt $qa the question attempt. * @param bool $reallyclear whether we are really clearing the responses, or just outputting them. * @return string HTML to output. */ public function clear_wrong(question_attempt $qa, $reallyclear = true) { $question = $qa->get_question(); $response = $qa->get_last_qt_data(); if (!empty($response) && $reallyclear) { $cleanresponse = $question->clear_wrong_from_response($response); } else { $cleanresponse = $response; } $output = ''; foreach ($question->places as $place => $group) { $fieldname = $question->field($place); if (array_key_exists($fieldname, $response)) { $value = (string) $response[$fieldname]; } else { $value = '0'; } if (array_key_exists($fieldname, $cleanresponse)) { $cleanvalue = (string) $cleanresponse[$fieldname]; } else { $cleanvalue = '0'; } if ($cleanvalue === $value) { // Normal case: just one hidden input, to store the // current value and be the value submitted. $output .= html_writer::empty_tag('input', array( 'type' => 'hidden', 'id' => $this->box_id($qa, 'p' . $place), 'class' => 'placeinput place' . $place . ' group' . $group, 'name' => $qa->get_qt_field_name($fieldname), 'value' => s($value))); } else { // The case, which only happens when the question is read-only, where // we want to show the drag item in a given place (first hidden input), // but when submitted, we want it to go to a different place (second input). $output .= html_writer::empty_tag('input', array( 'type' => 'hidden', 'id' => $this->box_id($qa, 'p' . $place), 'class' => 'placeinput place' . $place . ' group' . $group, 'value' => s($value))) . html_writer::empty_tag('input', array( 'type' => 'hidden', 'name' => $qa->get_qt_field_name($fieldname), 'value' => s($cleanvalue))); } } return $output; } }