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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/>./*** Question type class for the drag-and-drop onto image question type.** @package qtype_ddimageortext* @copyright 2009 The Open University* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later*/defined('MOODLE_INTERNAL') || die();require_once($CFG->dirroot . '/question/type/ddimageortext/questiontypebase.php');/*** The drag-and-drop onto image question type class.** @copyright 2009 The Open University* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later*/class qtype_ddimageortext extends qtype_ddtoimage_base {protected function make_choice($dragdata) {return new qtype_ddimageortext_drag_item($dragdata->label, $dragdata->no,$dragdata->draggroup, $dragdata->infinite, $dragdata->id);}protected function make_place($dropzonedata) {return new qtype_ddimageortext_drop_zone($dropzonedata->label, $dropzonedata->no,$dropzonedata->group,$dropzonedata->xleft, $dropzonedata->ytop);}protected function make_hint($hint) {return question_hint_with_parts::load_from_record($hint);}public function save_defaults_for_new_questions(stdClass $fromform): void {parent::save_defaults_for_new_questions($fromform);$this->set_default_value('shuffleanswers', $fromform->shuffleanswers);}public function save_question_options($formdata) {global $DB, $USER;$context = $formdata->context;$options = $DB->get_record('qtype_ddimageortext', array('questionid' => $formdata->id));if (!$options) {$options = new stdClass();$options->questionid = $formdata->id;$options->correctfeedback = '';$options->partiallycorrectfeedback = '';$options->incorrectfeedback = '';$options->id = $DB->insert_record('qtype_ddimageortext', $options);}$options->shuffleanswers = !empty($formdata->shuffleanswers);$options = $this->save_combined_feedback_helper($options, $formdata, $context, true);$this->save_hints($formdata, true);$DB->update_record('qtype_ddimageortext', $options);$DB->delete_records('qtype_ddimageortext_drops', array('questionid' => $formdata->id));foreach (array_keys($formdata->drops) as $dropno) {if ($formdata->drops[$dropno]['choice'] == 0) {continue;}$drop = new stdClass();$drop->questionid = $formdata->id;$drop->no = $dropno + 1;$drop->xleft = $formdata->drops[$dropno]['xleft'];$drop->ytop = $formdata->drops[$dropno]['ytop'];$drop->choice = $formdata->drops[$dropno]['choice'];$drop->label = $formdata->drops[$dropno]['droplabel'];$DB->insert_record('qtype_ddimageortext_drops', $drop);}// An array of drag no -> drag id.$olddragids = $DB->get_records_menu('qtype_ddimageortext_drags',array('questionid' => $formdata->id),'', 'no, id');foreach (array_keys($formdata->drags) as $dragno) {$info = file_get_draft_area_info($formdata->dragitem[$dragno]);if ($info['filecount'] > 0 || (trim($formdata->draglabel[$dragno]) != '')) {$draftitemid = $formdata->dragitem[$dragno];$drag = new stdClass();$drag->questionid = $formdata->id;$drag->no = $dragno + 1;$drag->draggroup = $formdata->drags[$dragno]['draggroup'];$drag->infinite = empty($formdata->drags[$dragno]['infinite']) ? 0 : 1;$drag->label = $formdata->draglabel[$dragno];if (isset($olddragids[$dragno + 1])) {$drag->id = $olddragids[$dragno + 1];unset($olddragids[$dragno + 1]);$DB->update_record('qtype_ddimageortext_drags', $drag);} else {$drag->id = $DB->insert_record('qtype_ddimageortext_drags', $drag);}if ($formdata->drags[$dragno]['dragitemtype'] == 'image') {file_save_draft_area_files($draftitemid, $formdata->context->id,'qtype_ddimageortext', 'dragimage', $drag->id,array('subdirs' => 0, 'maxbytes' => 0, 'maxfiles' => 1));} else {// Delete any existing files for draggable text item type.$fs = get_file_storage();$fs->delete_area_files($formdata->context->id, 'qtype_ddimageortext','dragimage', $drag->id);}}}if (!empty($olddragids)) {list($sql, $params) = $DB->get_in_or_equal(array_values($olddragids));$DB->delete_records_select('qtype_ddimageortext_drags', "id $sql", $params);}file_save_draft_area_files($formdata->bgimage, $formdata->context->id,'qtype_ddimageortext', 'bgimage', $formdata->id,array('subdirs' => 0, 'maxbytes' => 0, 'maxfiles' => 1));}public function move_files($questionid, $oldcontextid, $newcontextid) {global $DB;$fs = get_file_storage();parent::move_files($questionid, $oldcontextid, $newcontextid);$fs->move_area_files_to_new_context($oldcontextid,$newcontextid, 'qtype_ddimageortext', 'bgimage', $questionid);$dragids = $DB->get_records_menu('qtype_ddimageortext_drags',array('questionid' => $questionid), 'id', 'id,1');foreach ($dragids as $dragid => $notused) {$fs->move_area_files_to_new_context($oldcontextid,$newcontextid, 'qtype_ddimageortext', 'dragimage', $dragid);}$this->move_files_in_combined_feedback($questionid, $oldcontextid, $newcontextid);$this->move_files_in_hints($questionid, $oldcontextid, $newcontextid);}/*** Delete all the files belonging to this question.* @param int $questionid the question being deleted.* @param int $contextid the context the question is in.*/protected function delete_files($questionid, $contextid) {global $DB;$fs = get_file_storage();parent::delete_files($questionid, $contextid);$dragids = $DB->get_records_menu('qtype_ddimageortext_drags',array('questionid' => $questionid), 'id', 'id,1');foreach ($dragids as $dragid => $notused) {$fs->delete_area_files($contextid, 'qtype_ddimageortext', 'dragimage', $dragid);}$this->delete_files_in_combined_feedback($questionid, $contextid);$this->delete_files_in_hints($questionid, $contextid);}public function export_to_xml($question, qformat_xml $format, $extra = null) {$fs = get_file_storage();$contextid = $question->contextid;$output = '';if ($question->options->shuffleanswers) {$output .= " <shuffleanswers/>\n";}$output .= $format->write_combined_feedback($question->options,$question->id,$question->contextid);$files = $fs->get_area_files($contextid, 'qtype_ddimageortext', 'bgimage', $question->id);$output .= " ".$this->write_files($files, 2)."\n";;foreach ($question->options->drags as $drag) {$files =$fs->get_area_files($contextid, 'qtype_ddimageortext', 'dragimage', $drag->id);$output .= " <drag>\n";$output .= " <no>{$drag->no}</no>\n";$output .= $format->writetext($drag->label, 3)."\n";$output .= " <draggroup>{$drag->draggroup}</draggroup>\n";if ($drag->infinite) {$output .= " <infinite/>\n";}$output .= $this->write_files($files, 3);$output .= " </drag>\n";}foreach ($question->options->drops as $drop) {$output .= " <drop>\n";$output .= $format->writetext($drop->label, 3);$output .= " <no>{$drop->no}</no>\n";$output .= " <choice>{$drop->choice}</choice>\n";$output .= " <xleft>{$drop->xleft}</xleft>\n";$output .= " <ytop>{$drop->ytop}</ytop>\n";$output .= " </drop>\n";}return $output;}public function import_from_xml($data, $question, qformat_xml $format, $extra=null) {if (!isset($data['@']['type']) || $data['@']['type'] != 'ddimageortext') {return false;}$question = $format->import_headers($data);$question->qtype = 'ddimageortext';$question->shuffleanswers = array_key_exists('shuffleanswers',$format->getpath($data, array('#'), array()));$filexml = $format->getpath($data, array('#', 'file'), array());$question->bgimage = $format->import_files_as_draft($filexml);$drags = $data['#']['drag'];$question->drags = array();foreach ($drags as $dragxml) {$dragno = $format->getpath($dragxml, array('#', 'no', 0, '#'), 0);$dragindex = $dragno - 1;$question->drags[$dragindex] = array();$question->draglabel[$dragindex] =$format->getpath($dragxml, array('#', 'text', 0, '#'), '', true);$question->drags[$dragindex]['infinite'] = array_key_exists('infinite', $dragxml['#']);$question->drags[$dragindex]['draggroup'] =$format->getpath($dragxml, array('#', 'draggroup', 0, '#'), 1);$filexml = $format->getpath($dragxml, array('#', 'file'), array());$question->dragitem[$dragindex] = $format->import_files_as_draft($filexml);if (count($filexml)) {$question->drags[$dragindex]['dragitemtype'] = 'image';} else {$question->drags[$dragindex]['dragitemtype'] = 'word';}}$drops = $data['#']['drop'];$question->drops = array();foreach ($drops as $dropxml) {$dropno = $format->getpath($dropxml, array('#', 'no', 0, '#'), 0);$dropindex = $dropno - 1;$question->drops[$dropindex] = array();$question->drops[$dropindex]['choice'] =$format->getpath($dropxml, array('#', 'choice', 0, '#'), 0);$question->drops[$dropindex]['droplabel'] =$format->getpath($dropxml, array('#', 'text', 0, '#'), '', true);$question->drops[$dropindex]['xleft'] =$format->getpath($dropxml, array('#', 'xleft', 0, '#'), '');$question->drops[$dropindex]['ytop'] =$format->getpath($dropxml, array('#', 'ytop', 0, '#'), '');}$format->import_combined_feedback($question, $data, true);$format->import_hints($question, $data, true, false,$format->get_format($question->questiontextformat));return $question;}}