You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
266 lines
9.6 KiB
266 lines
9.6 KiB
2 years ago
|
<?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/>.
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Defines the renderer base classes for question types.
|
||
|
|
*
|
||
|
|
* @package moodlecore
|
||
|
|
* @subpackage questiontypes
|
||
|
|
* @copyright 2009 The Open University
|
||
|
|
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
defined('MOODLE_INTERNAL') || die();
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Renderer base classes for question types.
|
||
|
|
*
|
||
|
|
* @copyright 2009 The Open University
|
||
|
|
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
||
|
|
*/
|
||
|
|
abstract class qtype_renderer extends plugin_renderer_base {
|
||
|
|
/**
|
||
|
|
* Generate the display of the formulation part of the question. This is the
|
||
|
|
* area that contains the quetsion text, and the controls for students to
|
||
|
|
* input their answers. Some question types also embed bits of feedback, for
|
||
|
|
* example ticks and crosses, in this area.
|
||
|
|
*
|
||
|
|
* @param question_attempt $qa the question attempt to display.
|
||
|
|
* @param question_display_options $options controls what should and should not be displayed.
|
||
|
|
* @return string HTML fragment.
|
||
|
|
*/
|
||
|
|
public function formulation_and_controls(question_attempt $qa,
|
||
|
|
question_display_options $options) {
|
||
|
|
return $qa->get_question()->format_questiontext($qa);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* In the question output there are some class="accesshide" headers to help
|
||
|
|
* screen-readers. This method returns the text to use for the heading above
|
||
|
|
* the formulation_and_controls section.
|
||
|
|
* @return string to use as the heading.
|
||
|
|
*/
|
||
|
|
public function formulation_heading() {
|
||
|
|
return get_string('questiontext', 'question');
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Output hidden form fields to clear any wrong parts of the student's response.
|
||
|
|
*
|
||
|
|
* This method will only be called if the question is in read-only mode.
|
||
|
|
* @param question_attempt $qa the question attempt to display.
|
||
|
|
* @return string HTML fragment.
|
||
|
|
*/
|
||
|
|
public function clear_wrong(question_attempt $qa) {
|
||
|
|
$response = $qa->get_last_qt_data();
|
||
|
|
if (!$response) {
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
$cleanresponse = $qa->get_question()->clear_wrong_from_response($response);
|
||
|
|
$output = '';
|
||
|
|
foreach ($cleanresponse as $name => $value) {
|
||
|
|
$attr = array(
|
||
|
|
'type' => 'hidden',
|
||
|
|
'name' => $qa->get_qt_field_name($name),
|
||
|
|
'value' => s($value),
|
||
|
|
);
|
||
|
|
$output .= html_writer::empty_tag('input', $attr);
|
||
|
|
}
|
||
|
|
return $output;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Generate the display of the outcome part of the question. This is the
|
||
|
|
* area that contains the various forms of feedback. This function generates
|
||
|
|
* the content of this area belonging to the question type.
|
||
|
|
*
|
||
|
|
* Subclasses will normally want to override the more specific methods
|
||
|
|
* {specific_feedback()}, {general_feedback()} and {correct_response()}
|
||
|
|
* that this method calls.
|
||
|
|
*
|
||
|
|
* @param question_attempt $qa the question attempt to display.
|
||
|
|
* @param question_display_options $options controls what should and should not be displayed.
|
||
|
|
* @return string HTML fragment.
|
||
|
|
*/
|
||
|
|
public function feedback(question_attempt $qa, question_display_options $options) {
|
||
|
|
$output = '';
|
||
|
|
$hint = null;
|
||
|
|
|
||
|
|
if ($options->feedback) {
|
||
|
|
$output .= html_writer::nonempty_tag('div', $this->specific_feedback($qa),
|
||
|
|
array('class' => 'specificfeedback'));
|
||
|
|
$hint = $qa->get_applicable_hint();
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($options->numpartscorrect) {
|
||
|
|
$output .= html_writer::nonempty_tag('div', $this->num_parts_correct($qa),
|
||
|
|
array('class' => 'numpartscorrect'));
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($hint) {
|
||
|
|
$output .= $this->hint($qa, $hint);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($options->generalfeedback) {
|
||
|
|
$output .= html_writer::nonempty_tag('div', $this->general_feedback($qa),
|
||
|
|
array('class' => 'generalfeedback'));
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($options->rightanswer) {
|
||
|
|
$output .= html_writer::nonempty_tag('div', $this->correct_response($qa),
|
||
|
|
array('class' => 'rightanswer'));
|
||
|
|
}
|
||
|
|
|
||
|
|
return $output;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Generate the specific feedback. This is feedback that varies according to
|
||
|
|
* the response the student gave.
|
||
|
|
* @param question_attempt $qa the question attempt to display.
|
||
|
|
* @return string HTML fragment.
|
||
|
|
*/
|
||
|
|
protected function specific_feedback(question_attempt $qa) {
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gereate a brief statement of how many sub-parts of this question the
|
||
|
|
* student got right.
|
||
|
|
* @param question_attempt $qa the question attempt to display.
|
||
|
|
* @return string HTML fragment.
|
||
|
|
*/
|
||
|
|
protected function num_parts_correct(question_attempt $qa) {
|
||
|
|
$a = new stdClass();
|
||
|
|
list($a->num, $a->outof) = $qa->get_question()->get_num_parts_right(
|
||
|
|
$qa->get_last_qt_data());
|
||
|
|
if (is_null($a->outof)) {
|
||
|
|
return '';
|
||
|
|
} else {
|
||
|
|
return get_string('yougotnright', 'question', $a);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gereate the specific feedback. This is feedback that varies according to
|
||
|
|
* the response the student gave.
|
||
|
|
* @param question_attempt $qa the question attempt to display.
|
||
|
|
* @return string HTML fragment.
|
||
|
|
*/
|
||
|
|
protected function hint(question_attempt $qa, question_hint $hint) {
|
||
|
|
return html_writer::nonempty_tag('div',
|
||
|
|
$qa->get_question()->format_hint($hint, $qa), array('class' => 'hint'));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gereate the general feedback. This is feedback is shown ot all students.
|
||
|
|
*
|
||
|
|
* @param question_attempt $qa the question attempt to display.
|
||
|
|
* @return string HTML fragment.
|
||
|
|
*/
|
||
|
|
protected function general_feedback(question_attempt $qa) {
|
||
|
|
return $qa->get_question()->format_generalfeedback($qa);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gereate an automatic description of the correct response to this question.
|
||
|
|
* Not all question types can do this. If it is not possible, this method
|
||
|
|
* should just return an empty string.
|
||
|
|
*
|
||
|
|
* @param question_attempt $qa the question attempt to display.
|
||
|
|
* @return string HTML fragment.
|
||
|
|
*/
|
||
|
|
protected function correct_response(question_attempt $qa) {
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Display any extra question-type specific content that should be visible
|
||
|
|
* when grading, if appropriate.
|
||
|
|
*
|
||
|
|
* @param question_attempt $qa a question attempt.
|
||
|
|
* @param question_display_options $options controls what should and should not be displayed.
|
||
|
|
* @return string HTML fragment.
|
||
|
|
*/
|
||
|
|
public function manual_comment(question_attempt $qa, question_display_options $options) {
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return any HTML that needs to be included in the page's <head> when this
|
||
|
|
* question is used.
|
||
|
|
* @param $qa the question attempt that will be displayed on the page.
|
||
|
|
* @return string HTML fragment.
|
||
|
|
*/
|
||
|
|
public function head_code(question_attempt $qa) {
|
||
|
|
// This method is used by the Opaque question type. The remote question
|
||
|
|
// engine can send back arbitrary CSS that we have to link to in the
|
||
|
|
// page header. If it was not for that, we might be able to eliminate
|
||
|
|
// this method and load the required CSS and JS some other way.
|
||
|
|
$qa->get_question()->qtype->find_standard_scripts();
|
||
|
|
}
|
||
|
|
|
||
|
|
protected function feedback_class($fraction) {
|
||
|
|
return question_state::graded_state_for_fraction($fraction)->get_feedback_class();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return an appropriate icon (green tick, red cross, etc.) for a grade.
|
||
|
|
* @param float $fraction grade on a scale 0..1.
|
||
|
|
* @param bool $selected whether to show a big or small icon. (Deprecated)
|
||
|
|
* @return string html fragment.
|
||
|
|
*/
|
||
|
|
protected function feedback_image($fraction, $selected = true) {
|
||
|
|
$feedbackclass = question_state::graded_state_for_fraction($fraction)->get_feedback_class();
|
||
|
|
|
||
|
|
return $this->output->pix_icon('i/grade_' . $feedbackclass, get_string($feedbackclass, 'question'));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Renderer base classes for question types.
|
||
|
|
*
|
||
|
|
* @copyright 2010 The Open University
|
||
|
|
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
||
|
|
*/
|
||
|
|
abstract class qtype_with_combined_feedback_renderer extends qtype_renderer {
|
||
|
|
protected function combined_feedback(question_attempt $qa) {
|
||
|
|
$question = $qa->get_question();
|
||
|
|
|
||
|
|
$state = $qa->get_state();
|
||
|
|
|
||
|
|
if (!$state->is_finished()) {
|
||
|
|
$response = $qa->get_last_qt_data();
|
||
|
|
if (!$qa->get_question()->is_gradable_response($response)) {
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
list($notused, $state) = $qa->get_question()->grade_response($response);
|
||
|
|
}
|
||
|
|
|
||
|
|
$feedback = '';
|
||
|
|
$field = $state->get_feedback_class() . 'feedback';
|
||
|
|
$format = $state->get_feedback_class() . 'feedbackformat';
|
||
|
|
if ($question->$field) {
|
||
|
|
$feedback .= $question->format_text($question->$field, $question->$format,
|
||
|
|
$qa, 'question', $field, $question->id);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $feedback;
|
||
|
|
}
|
||
|
|
}
|