public static function impl_formulation_and_controls(qtype_multichoice_renderer_base $renderer, question_attempt $qa, question_display_options $options)
{
global $CFG, $PAGE, $OUTPUT;
// get the current question
$question = $qa->get_question();
// get the response
$response = $question->get_response($qa);
// answer prefix
$answer_input_name = $qa->get_qt_field_name('answer');
// set the ID of the OmeroImageViewer
$omero_frame_id = self::to_unique_identifier($qa, "omero-image-viewer");
// set the ID the ModalImagePanel
$modal_image_panel_id = $omero_frame_id . "-" . qtype_omerocommon_renderer_helper::MODAL_VIEWER_ELEMENT_ID;
// set the name of the feedback image class
$feedback_image_class = $omero_frame_id . "-feedbackimage";
// ID of the question answer container
$question_answer_container = self::to_unique_identifier($qa, "omero-interactive-question-container");
// the OMERO image URL
$omero_image_url = $question->omeroimageurl;
// extract the omero server
$OMERO_SERVER = get_config('omero', 'omero_restendpoint');
// parse the URL to get the image ID and its related params
$matches = array();
$pattern = '/\\/([0123456789]+)(\\?.*)?/';
if (preg_match($pattern, $omero_image_url, $matches)) {
$omero_image = $matches[1];
$omero_image_params = count($matches) === 3 ? $matches[2] : "";
}
// check
$multi_correct_answer = $question instanceof qtype_omerointeractive_multi_question;
$no_max_markers = 0;
$answer_shape_map = array();
$shape_grade_map = new stdClass();
$available_shapes = array();
$shape_groups = array();
foreach ($question->get_order($qa) as $ans_idx => $ansid) {
$ans = $question->answers[$ansid];
$value = $ans->answer;
$shape_group = array_map("intval", explode(",", $ans->answer));
$shape_group_cardinality = count($shape_group);
// update the max number of markers allowed
if ($ans->fraction > 0 && !empty($value)) {
$no_max_markers += $shape_group_cardinality;
}
// compute the shape grade
$shape_group_fraction = 0;
if ($shape_group_cardinality > 0) {
$shape_group_fraction = $multi_correct_answer ? $ans->fraction / $shape_group_cardinality : $ans->fraction;
}
foreach ($shape_group as $shape_id) {
$shape_grade_map->{$shape_id} = $shape_group_fraction;
array_push($available_shapes, $shape_id);
$answer_shape_map[$shape_id] = $ans;
}
array_push($shape_groups, array("shapes" => $shape_group, "shape_grade" => $shape_group_fraction));
}
// Fix the max number of markers
if (!$multi_correct_answer) {
$no_max_markers = 1;
}
$answer_order = "";
$answer_options = array();
$feedbackimages = array();
foreach ($ans->feedbackimages as $image_id => $image) {
array_push($feedbackimages, $image_id);
}
$feedbackimages_html = "";
if (count($ans->feedbackimages) > 0) {
$feedbackimages_html = '<div style="display: block; float: right;">[ ' . get_string("see", "qtype_omerocommon") . " ";
$current_language = current_language();
foreach ($ans->feedbackimages as $image) {
$feedbackimages_html .= '<span class="' . $feedback_image_class . '" imageid="' . $image->id . '"' . ' imagename="' . $image->name . '"' . ' imagedescription="' . $image->description_locale_map->{$current_language} . '"' . ' imagelock="' . $image->lock . '"' . ' imageproperties="' . htmlspecialchars(json_encode($image->properties)) . '"' . ' visiblerois="' . implode(",", $image->visiblerois) . '"' . ' focusablerois="' . implode(",", $image->focusablerois) . '"' . '>' . '<i class="glyphicon glyphicon-book" style="margin-left: 2px; margin-right: 5px;"></i>' . '"' . $image->name . '"</span>';
}
$feedbackimages_html .= ' ]</div>';
}
$feedbackimg = array();
$classes = array();
// Show correct/wrong markers
if ($options->correctness) {
foreach ($response->markers as $index => $marker) {
$shape = $response->shapes[$index];
$isselected = true;
$hidden = '';
$answer_options_attributes = array();
$marker_correction = $hidden;
$marker_correction .= html_writer::empty_tag('li', $answer_options_attributes);
$marker_correction_text = get_string("marker", "qtype_omerointeractive") . " " . html_writer::tag("i", " ", array("class" => "glyphicon glyphicon-map-marker roi-shape-info", "roi-shape-id" => $marker->shape_id)) . " ";
if ($shape !== "none") {
$marker_correction_text .= get_string("your_marker_inside", "qtype_omerointeractive") . " " . html_writer::tag("i", " ", array("class" => "glyphicon glyphicon-map-marker roi-shape-info", "roi-shape-id" => $shape->shape_id)) . " [" . $shape->shape_id . "] ";
} else {
$marker_correction_text .= get_string("your_marker_outside", "qtype_omerointeractive");
}
$marker_correction_text .= '<span class="pull-right">' . $renderer->feedback_image($renderer->is_right_marker($shape_grade_map, $response, $index)) . html_writer::tag("i", " ", array("class" => "glyphicon glyphicon-eye-open roi-shape-visibility", "roi-shape-id" => $marker->shape_id, "style" => "margin-right: 5px")) . '</span>';
if ($shape !== "none" && !empty(strip_tags($answer_shape_map[$shape->shape_id]->feedback))) {
$shape_answer = $answer_shape_map[$shape->shape_id];
$marker_correction_text .= html_writer::tag("div", html_writer::tag("i", " ", array("class" => "pull-left glyphicon glyphicon-record", "style" => "margin-right: 5px")) . format_text($shape_answer->feedback) . $feedbackimages_html, array("class" => "outcome", "style" => "padding: 20px 30px 20px;"));
}
$marker_correction .= html_writer::tag('label', $marker_correction_text);
$answer_options[] = $marker_correction;
$class = 'r' . $value % 2;
$answer_options_attributes['checked'] = 'checked';
$feedback_class = $renderer->feedback_image($renderer->is_right_marker($shape_grade_map, $response, $index));
$feedbackimg[] = $renderer->feedback_image($renderer->is_right_marker($shape_grade_map, $response, $index));
$class .= ' ' . $renderer->feedback_class($renderer->is_right_marker($shape_grade_map, $response, $index));
$classes[] = $class;
}
}
foreach ($question->get_order($qa) as $value => $ansid) {
$ans = $question->answers[$ansid];
$answer_order .= $ans->answer;
$answer_options_attributes['name'] = $renderer->get_input_name($qa, $value);
$answer_options_attributes['value'] = $renderer->get_input_value($value);
$answer_options_attributes['id'] = $renderer->get_input_id($qa, $value);
$hidden = '';
if (!$options->readonly && $renderer->get_input_type() == 'checkbox') {
$hidden .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => $answer_options_attributes['name'], 'value' => 0));
}
}
/**
* Render the question
*/
$result = '';
// add the ModalImagePanel template
$result .= qtype_omerocommon_renderer_helper::modal_viewer(true, true, true, $modal_image_panel_id);
// main question_answer_container
$result .= html_writer::start_tag('div', array('id' => $question_answer_container, 'class' => 'ablock'));
// question text
$result .= html_writer::tag('div', $question->format_questiontext($qa), array('class' => 'qtext'));
// viewer of the question image
$result .= '<div class="image-viewer-with-controls-container">';
$result .= '<!-- TOOLBAR -->
<div class="btn-group interactive-player-toolbar pull-right" style="margin-left: 5px;" data-toggle="buttons" aria-pressed="false" autocomplete="true">
<a href="#" id="' . self::to_unique_identifier($qa, self::IMAGE_CLEAR_MARKER_CTRL) . '" class="btn btn-default disabled" aria-label="Left Align">
<i class="glyphicon glyphicon-remove"></i> ' . get_string('clear_markers', 'qtype_omerointeractive') . '</a>
</div>
<div class="btn-group interactive-player-toolbar pull-right" data-toggle="buttons" aria-pressed="false" autocomplete="off">
<a href="#" id="' . self::to_unique_identifier($qa, self::IMAGE_ADD_MARKER_CTRL) . '" class="btn btn-default disabled" aria-label="Left Align">
<i class="glyphicon glyphicon-plus"></i> ' . get_string('add_marker', 'qtype_omerointeractive') . '</a>
<a href="#" id="' . self::to_unique_identifier($qa, self::IMAGE_EDIT_MARKER_CTRL) . '" class="btn btn-default disabled" aria-label="Left Align">
<i class="glyphicon glyphicon-edit"></i> ' . get_string('edit_marker', 'qtype_omerointeractive') . '</a>
</div>';
$result .= '<div id="' . self::to_unique_identifier($qa, "graphics_container") . '" class="image-viewer-container" style="position: relative;" >
<div id="' . self::to_unique_identifier($qa, self::IMAGE_VIEWER_CONTAINER) . '" style="position: absolute; width: 100%; height: 500px; margin: auto; z-index: 0;"></div>
<canvas id="' . self::to_unique_identifier($qa, 'annotations_canvas') . '" style="position: absolute; width: 100%; height: 500px; margin: auto; z-index: 1;"></canvas>
<div id="' . self::to_unique_identifier($qa, self::IMAGE_VIEWER_CONTAINER) . '-loading-dialog" class="image-viewer-loading-dialog"></div>
</div>';
$image_properties = null;
$image_properties = json_decode($question->omeroimageproperties);
$result .= '<div class="image_position_button">' . '<span class="sm">' . ($question->omeroimageproperties ? '<b>(x,y):</b> ' . $image_properties->center->x . ", " . $image_properties->center->y . '<i class="restore-image-center-btn glyphicon glyphicon-screenshot" style="margin-left: 10px;"></i>' : "") . '</span></div>';
if (!empty($question->focusablerois)) {
$result .= '<div id="' . self::to_unique_identifier($qa, self::FOCUS_AREAS_CONTAINER) . '" ' . ' class="focus_areas_container">' . '<span class="focus-areas-text">* ' . get_string("focusareas", "qtype_omerointeractive") . '</span> ' . '</div>';
}
$result .= '<div id="' . self::to_unique_identifier($qa, self::MARKER_REMOVERS_CONTAINER) . '" ' . ' class="remove_marker_button_group">' . '<span class="yourmarkers-text">* ' . get_string("yourmarkers", "qtype_omerointeractive") . '</span> ' . '</div>';
$result .= '</div>';
$answer_input_name = $qa->get_qt_field_name('answer');
$answer_options_attributes = array('type' => $renderer->get_input_type(), 'name' => $answer_input_name);
if ($options->readonly) {
$answer_options_attributes['disabled'] = 'disabled';
}
if ($options->correctness && count($response->markers) > 0) {
$result .= html_writer::start_tag('div', array('class' => 'question-summary hidden'));
$result .= html_writer::tag('div', count($response->markers) === 1 ? get_string("notice_your_answer", "qtype_omerocommon") : get_string("notice_your_answers", "qtype_omerocommon"), array("class" => "answer-summary-fixed-text"));
$result .= html_writer::start_tag('ul', array('class' => 'answer'));
foreach ($answer_options as $key => $answer_option) {
$result .= html_writer::tag('div', $answer_option, array('class' => $classes[$key])) . "\n";
}
$result .= html_writer::end_tag('ul');
// Answer.
$result .= html_writer::end_tag('div');
// Answer.
}
$result .= html_writer::tag('div', '', array('id' => $question_answer_container . '-invalidator-panel', 'class' => "invalidator-panel"));
$result .= html_writer::end_tag('div');
// Ablock.
// support for dialog message
$result .= html_writer::tag('div', '
<div class="modal fade" id="modal-frame-' . $omero_frame_id . '" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
<h4 class="modal-title text-warning" id="modal-frame-label-' . $omero_frame_id . '">
<i class="glyphicon glyphicon-warning-sign"></i> ' . get_string('validate_warning', 'qtype_omerocommon') . '</h4>
</div>
<div class="modal-body text-left">
<span id="modal-frame-text-' . $omero_frame_id . '"></span>
</div>
<div class="modal-footer text-center">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>');
$player_config = array("image_id" => $omero_image, "image_properties" => json_decode($question->omeroimageproperties), "image_frame_id" => $omero_frame_id, "image_annotations_canvas_id" => self::to_unique_identifier($qa, "annotations_canvas"), "modal_image_panel_id" => $modal_image_panel_id, "feedback_image_class" => $feedback_image_class, "image_server" => $OMERO_SERVER, "image_viewer_container" => self::to_unique_identifier($qa, self::IMAGE_VIEWER_CONTAINER), "image_navigation_locked" => (bool) $question->omeroimagelocked, "viewer_model_server" => $CFG->omero_image_server, "qname" => $question->name, "question_answer_container" => $question_answer_container, "enable_add_makers_ctrl_id" => self::to_unique_identifier($qa, self::IMAGE_ADD_MARKER_CTRL), "enable_edit_markers_ctrl_id" => self::to_unique_identifier($qa, self::IMAGE_EDIT_MARKER_CTRL), "remove_marker_ctrl_id" => self::to_unique_identifier($qa, self::IMAGE_DEL_MARKER_CTRL), "clear_marker_ctrl_id" => self::to_unique_identifier($qa, self::IMAGE_CLEAR_MARKER_CTRL), "marker_removers_container" => self::to_unique_identifier($qa, self::MARKER_REMOVERS_CONTAINER), "focus_areas_container" => self::to_unique_identifier($qa, self::FOCUS_AREAS_CONTAINER), "answer_input_name" => $answer_input_name, "available_shapes" => $available_shapes, "shape_groups" => $shape_groups, "visible_rois" => empty($question->visiblerois) ? [] : explode(",", $question->visiblerois), "focusable_rois" => empty($question->focusablerois) ? [] : explode(",", $question->focusablerois), "correction_mode" => (bool) $options->correctness, "response" => $response, "answers" => $response, "answer_fraction" => $shape_grade_map, "max_markers" => $no_max_markers);
$player_config_element_id = self::to_unique_identifier($qa, "viewer-config");
$result .= html_writer::empty_tag("input", array("id" => $player_config_element_id, "type" => "hidden", "value" => json_encode($player_config)));
if ($qa->get_state() == question_state::$invalid) {
$result .= html_writer::nonempty_tag('div', $question->get_validation_error($qa->get_last_qt_data()), array('class' => 'validationerror'));
}
$result .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => "answer_input_name", 'value' => $answer_input_name));
global $PAGE;
$PAGE->requires->string_for_js('marker', 'qtype_omerointeractive');
$PAGE->requires->js_call_amd("qtype_omerointeractive/question-player-interactive", "start", array($player_config_element_id));
return $result;
}
protected function num_parts_correct(question_attempt $qa) {
if ($qa->get_question()->get_num_selected_choices($qa->get_last_qt_data()) >
$qa->get_question()->get_num_correct_choices()) {
return get_string('toomanyselected', 'qtype_multichoice');
}
return parent::num_parts_correct($qa);
}
public static function impl_formulation_and_controls(qtype_multichoice_renderer_base $renderer, question_attempt $qa, question_display_options $options)
{
global $CFG, $PAGE;
// get the current question
$question = $qa->get_question();
// get the response
$response = $question->get_response($qa);
// answer prefix
$answer_input_name = $qa->get_qt_field_name('answer');
// set the ID of the OmeroImageViewer
$omero_frame_id = self::to_unique_identifier($qa, "omero-image-viewer");
// set the ID of the ModalImagePanel
$modal_image_panel_id = $omero_frame_id . "-" . qtype_omerocommon_renderer_helper::MODAL_VIEWER_ELEMENT_ID;
// set the name of feedback image class
$feedback_image_class = $omero_frame_id . "-feedbackimage";
// set the ID of the answer container
$question_answer_container = self::to_unique_identifier($qa, "omero-multichoice-question-container");
// the OMERO image URL
$omero_image_url = $question->omeroimageurl;
// extract the omero server
$OMERO_SERVER = get_config('omero', 'omero_restendpoint');
// parse the URL to get the image ID and its related params
$matches = array();
$pattern = '/\\/([0123456789]+)(\\?.*)?/';
if (preg_match($pattern, $omero_image_url, $matches)) {
$omero_image = $matches[1];
$omero_image_params = count($matches) === 3 ? $matches[2] : "";
}
$no_max_markers = 0;
$available_answers = array();
foreach ($question->get_order($qa) as $ans_idx => $ansid) {
$ans = $question->answers[$ansid];
$value = $ans->answer;
array_push($available_answers, $value);
if ($ans->fraction > 0 && !empty($value)) {
$shape_group = explode(",", $ans->answer);
$no_max_markers += count($shape_group);
}
}
$multi_correct_answer = $question instanceof qtype_omeromultichoice_multi_renderer;
if (!$multi_correct_answer) {
$no_max_markers = 1;
}
$inputname = $qa->get_qt_field_name('answer');
$inputattributes = array('type' => $renderer->get_input_type(), 'name' => $inputname);
if ($options->readonly) {
$inputattributes['disabled'] = 'disabled';
}
$radiobuttons = array();
$feedbackimg = array();
$feedback = array();
$classes = array();
$num_of_response = 0;
foreach ($question->get_order($qa) as $value => $ansid) {
$ans = $question->answers[$ansid];
$inputattributes['name'] = $renderer->get_input_name($qa, $value);
$inputattributes['value'] = $renderer->get_input_value($value);
$inputattributes['id'] = $renderer->get_input_id($qa, $value . "XXX");
$isselected = $question->is_choice_selected($response, $value);
if ($isselected) {
$inputattributes['checked'] = 'checked';
$num_of_response++;
} else {
unset($inputattributes['checked']);
}
$hidden = '';
if (!$options->readonly && $renderer->get_input_type() == 'checkbox') {
$hidden = html_writer::empty_tag('input', array('type' => 'hidden', 'name' => $inputattributes['name'], 'value' => 0));
}
$feedbackimages = array();
foreach ($ans->feedbackimages as $image_id => $image) {
array_push($feedbackimages, $image_id);
}
$feedbackimages_html = "";
if (count($ans->feedbackimages) > 0) {
$feedbackimages_html = '<div style="display: block; float: right;">[ ' . get_string("see", "qtype_omerocommon") . " ";
$current_language = current_language();
foreach ($ans->feedbackimages as $image) {
$feedbackimages_html .= '<span class="' . $feedback_image_class . '" imageid="' . $image->id . '"' . ' currentlanguage="' . $current_language . '"' . ' imagename="' . $image->name . '"' . ' imagedescription="' . htmlspecialchars($image->description_locale_map->{$current_language}) . '"' . ' imagelock="' . ($image->lock ? "true" : "false") . '"' . ' imageproperties="' . htmlspecialchars(json_encode($image->properties)) . '"' . ' visiblerois="' . implode(",", $image->visiblerois) . '"' . ' focusablerois="' . implode(",", $image->focusablerois) . '"' . '>' . '<i class="glyphicon glyphicon-book" style="margin-left: 2px; margin-right: 5px;"></i>' . '"' . $image->name . '"</span>';
}
$feedbackimages_html .= ' ]</div>';
}
// Param $options->suppresschoicefeedback is a hack specific to the
// oumultiresponse question type. It would be good to refactor to
// avoid refering to it here.
$feedback_content = null;
if ($options->feedback && empty($options->suppresschoicefeedback) && $isselected) {
$feedback_content = $isselected ? '<span class="pull-right">' . $renderer->feedback_image($renderer->is_right($ans)) . '</span>' : "";
$feedback_text = trim($ans->feedback);
if (!empty(strip_tags($feedback_text))) {
$feedback_content .= html_writer::tag("div", html_writer::tag("i", " ", array("class" => "pull-left glyphicon glyphicon-record", "style" => "margin-left: 10px; margin-right: 5px")) . format_text($feedback_text) . $feedbackimages_html, array("class" => "outcome", "style" => "padding: 20px 15px;"));
}
$feedback[] = $feedback_content;
} else {
$feedback[] = '';
}
$class = 'r' . $value % 2;
if ($options->correctness && $isselected) {
$feedbackimg[] = $renderer->feedback_image($renderer->is_right($ans));
$class .= ' ' . $renderer->feedback_class($renderer->is_right($ans));
} else {
$feedbackimg[] = '';
}
$classes[] = $class;
$radiobutton_label = html_writer::tag('label', $question->format_text($renderer->number_in_style($value, $question->answernumbering) . preg_replace('/<p[^>]*>(.*)<\\/p[^>]*>/i', '$1', $ans->answer), $ans->answerformat, $qa, 'question', 'answer', $ansid), array('for' => $inputattributes['id']));
$radiobuttons[] = $hidden . html_writer::empty_tag('input', $inputattributes) . qtype_omeromultichoice_base_renderer::number_answer($value, $question->answernumbering) . $radiobutton_label;
}
/**
* Render the question
*/
$result = '';
// add the ModalImagePanel
$result .= qtype_omerocommon_renderer_helper::modal_viewer(true, true, true, $modal_image_panel_id);
// main question_answer_container
$result .= html_writer::start_tag('div', array('id' => $question_answer_container, 'class' => 'ablock'));
// question text
$result .= html_writer::tag('div', $question->format_questiontext($qa), array('class' => 'qtext'));
// viewer of the question image
$result .= '<div class="image-viewer-with-controls-container">';
$result .= '<div id="' . self::to_unique_identifier($qa, "graphics_container") . '" class="image-viewer-container" style="position: relative;" >
<div id="' . self::to_unique_identifier($qa, self::IMAGE_VIEWER_CONTAINER) . '" style="position: absolute; width: 100%; height: 500px; margin: auto;"></div>
<canvas id="' . self::to_unique_identifier($qa, 'annotations_canvas') . '" style="position: absolute; width: 100%; height: 500px; margin: auto;"></canvas>
<div id="' . self::to_unique_identifier($qa, self::IMAGE_VIEWER_CONTAINER) . '-loading-dialog" class="image-viewer-loading-dialog"></div>
</div>';
$image_properties = null;
if ($question->omeroimageproperties) {
$image_properties = json_decode($question->omeroimageproperties);
$result .= '<div class="image_position_button">' . '<span class="sm">' . '<b>(x,y):</b> ' . $image_properties->center->x . ", " . $image_properties->center->y . '<i class="restore-image-center-btn glyphicon glyphicon-screenshot" style="margin-left: 10px;">' . '</i></span></div>';
}
$result .= '</div>';
if (!empty($question->focusablerois)) {
$result .= '<div id="' . self::to_unique_identifier($qa, self::FOCUS_AREAS_CONTAINER) . '" ' . ' class="focus_areas_container">' . '<span class="focus-areas-text">* ' . get_string("focusareas", "qtype_omerointeractive") . '</span> ' . '</div>';
}
$result .= html_writer::start_tag('div', array('class' => 'multichoice-options-container'));
$result .= html_writer::tag('div', !$options->correctness ? $renderer->prompt() : ($num_of_response === 1 ? get_string("notice_your_answer", "qtype_omerocommon") : get_string("notice_your_answers", "qtype_omerocommon")), array('class' => 'prompt'));
$result .= html_writer::start_tag('div', array('class' => 'answer'));
foreach ($radiobuttons as $key => $radio) {
$result .= html_writer::tag('div', $radio . ' ' . $feedback[$key], array('class' => $classes[$key]));
}
$result .= html_writer::end_tag('div');
// Answer.
$result .= html_writer::tag('div', '', array('id' => $question_answer_container . '-invalidator-panel', 'class' => "invalidator-panel"));
$result .= html_writer::end_tag('div');
// Ablock.
// support for dialog message
$result .= html_writer::tag('div', '
<div class="modal fade" id="modal-frame-' . $omero_frame_id . '" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
<h4 class="modal-title text-warning" id="modal-frame-label-' . $omero_frame_id . '">
<i class="glyphicon glyphicon-warning-sign"></i> ' . get_string('validate_warning', 'qtype_omerocommon') . '</h4>
</div>
<div class="modal-body text-left">
<span id="modal-frame-text-' . $omero_frame_id . '"></span>
</div>
<div class="modal-footer text-center">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>');
if ($qa->get_state() == question_state::$invalid) {
$result .= html_writer::nonempty_tag('div', $question->get_validation_error($qa->get_last_qt_data()), array('class' => 'validationerror'));
}
// set the player configuration
$player_config = array("image_id" => $omero_image, "image_properties" => json_decode($question->omeroimageproperties), "image_frame_id" => $omero_frame_id, "image_annotations_canvas_id" => self::to_unique_identifier($qa, "annotations_canvas"), "modal_image_panel_id" => $modal_image_panel_id, "feedback_image_class" => $feedback_image_class, "image_server" => $OMERO_SERVER, "viewer_model_server" => $CFG->omero_image_server, "image_viewer_container" => self::to_unique_identifier($qa, self::IMAGE_VIEWER_CONTAINER), "image_navigation_locked" => (bool) $question->omeroimagelocked, "qname" => $question->name, "question_answer_container" => $question_answer_container, "focus_areas_container" => self::to_unique_identifier($qa, self::FOCUS_AREAS_CONTAINER), "visible_rois" => empty($question->visiblerois) ? [] : explode(",", $question->visiblerois), "focusable_rois" => empty($question->focusablerois) ? [] : explode(",", $question->focusablerois), "answer_input_name" => $answer_input_name);
// embed the player configuration within an hidden input element
$player_config_element_id = self::to_unique_identifier($qa, "player-config");
$result .= html_writer::empty_tag("input", array("id" => $player_config_element_id, "type" => "hidden", "value" => json_encode($player_config)));
// start the pplayer
$PAGE->requires->js_call_amd("qtype_omeromultichoice/question-player-multichoice", "start", array($player_config_element_id));
return $result;
}
