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renderer.php
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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/>.
/**
* Drag-and-drop words into sentences question renderer class.
*
* @package qtype
* @subpackage 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 {
protected function qtext_classname() {
return 'qtext ddwtos_questionid_for_javascript';
}
public function formulation_and_controls(question_attempt $qa,
question_display_options $options) {
global $PAGE;
$result = parent::formulation_and_controls($qa, $options);
$inputids = array();
$question = $qa->get_question();
foreach ($question->places as $placeno => $place) {
$inputids[$placeno] = $this->box_id($qa, $question->field($placeno));
}
$params = array(
'inputids' => $inputids,
'topnode' => 'div.que.ddwtos#q' . $qa->get_slot(),
'readonly' => $options->readonly
);
$PAGE->requires->yui_module('moodle-qtype_ddwtos-dd',
'M.qtype_ddwtos.init_question', array($params));
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[] = 'notreadonly';
} else {
$classes[] = 'readonly';
}
$result .= html_writer::tag('div', $dragboxs, array('class' => implode(' ', $classes)));
$classes = array('drags');
if (!$options->readonly) {
$classes[] = 'notreadonly';
} else {
$classes[] = 'readonly';
}
$result .= html_writer::tag('div', '', 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 = ' ';
$value = $qa->get_last_qt_var($question->field($place));
$attributes = array(
'class' => 'place' . $place . ' drop 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('-', '‑', $choice->text);
$content = str_replace(' ', ' ', $content);
$infinite = '';
if ($choice->infinite) {
$infinite = ' infinite';
}
$boxes .= html_writer::tag('span', $content, array(
'class' => 'draghome choice' . $key . ' group' .
$choice->draggroup . $infinite)) . ' ';
}
return html_writer::nonempty_tag('div', $boxes,
array('class' => 'draggrouphomes' . $choice->draggroup));
}
/**
* Actually, this question type abuses this method to always ouptut the
* hidden fields it needs.
*/
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 = $response[$fieldname];
} else {
$value = '0';
}
if (array_key_exists($fieldname, $cleanresponse)) {
$cleanvalue = $cleanresponse[$fieldname];
} else {
$cleanvalue = '0';
}
if ($cleanvalue != $value) {
$output .= html_writer::empty_tag('input', array(
'type' => 'hidden',
'id' => $this->box_id($qa, 'p' . $place),
'value' => s($value))) .
html_writer::empty_tag('input', array(
'type' => 'hidden',
'name' => $qa->get_qt_field_name($fieldname),
'value' => s($cleanvalue)));
} else {
$output .= html_writer::empty_tag('input', array(
'type' => 'hidden',
'id' => $this->box_id($qa, 'p' . $place),
'name' => $qa->get_qt_field_name($fieldname),
'value' => s($value)));
}
}
return $output;
}
}