Add file question type

classes/question/file.php

@@ -0,0 +1,183 @@
+<?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/>.
+
+/**
+ * This file contains the parent class for text question types.
+ *
+ * @author Laurent David
+ * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
+ * @package questiontypes
+ */
+
+namespace mod_questionnaire\question;
+
+use context_module;
+use core_media_manager;
+use form_filemanager;
+use mod_questionnaire\file_storage;
+use moodle_url;
+use stdClass;
+
+defined('MOODLE_INTERNAL') || die();
+
+class file extends question {
+
+    /**
+     * @return string
+     */
+    public function helpname() {
+        return 'file';
+    }
+
+    /**
+     * Override and return a form template if provided. Output of question_survey_display is iterpreted based on this.
+     *
+     * @return boolean | string
+     */
+    public function question_template() {
+        return false;
+    }
+
+    /**
+     * Override and return a response template if provided. Output of response_survey_display is iterpreted based on this.
+     *
+     * @return boolean | string
+     */
+    public function response_template() {
+        return false;
+    }
+
+    /**
+     * @return object|string
+     */
+    protected function responseclass() {
+        return '\\mod_questionnaire\\responsetype\\file';
+    }
+
+    /**
+     * @param \mod_questionnaire\responsetype\response\response $response
+     * @param $descendantsdata
+     * @param bool $blankquestionnaire
+     * @return object|string
+     */
+    protected function question_survey_display($response, $descendantsdata, $blankquestionnaire = false) {
+        global $CFG, $PAGE;
+        require_once($CFG->libdir . '/filelib.php');
+        $elname = 'q' . $this->id;
+        $draftitemid = file_get_submitted_draft_itemid($elname);
+        $component = 'mod_questionnaire';
+        $options = $this->get_file_manager_option();
+        file_prepare_draft_area($draftitemid, $this->context->id, $component, 'file', $this->id, $options);
+        // Filemanager form element implementation is far from optimal, we need to rework this if we ever fix it...
+        require_once("$CFG->dirroot/lib/form/filemanager.php");
+
+        $fmoptions = array_merge(
+            $options,
+            [
+                'client_id' => uniqid(),
+                'itemid' => $draftitemid,
+                'target' => $this->id,
+                'name' => $elname
+            ]
+        );
+        $fm = new form_filemanager((object) $fmoptions);
+        $output = $PAGE->get_renderer('core', 'files');
+        $html = $output->render($fm);
+
+        $html .= '<input value="' . $draftitemid . '" name="' . $elname . '" type="hidden" />';
+        $html .= '<input value="" id="' . $this->id . '" type="hidden" />';
+
+        return $html;
+    }
+
+    private function get_file_manager_option() {
+        return [
+            'mainfile' => '',
+            'subdirs' => false,
+            'accepted_types' => array('image', '.pdf')
+        ];
+    }
+
+    /**
+     * @param \mod_questionnaire\responsetype\response\response $response
+     * @return object|string
+     */
+    protected function response_survey_display($response) {
+        global $PAGE, $CFG;
+        require_once($CFG->libdir . '/filelib.php');
+        require_once($CFG->libdir . '/resourcelib.php');
+        if (isset($response->answers[$this->id])) {
+            $answer = reset($response->answers[$this->id]);
+        } else {
+            return '';
+        }
+        $fs = get_file_storage();
+        $file = $fs->get_file_by_id($answer->value);
+
+        $moodleurl = moodle_url::make_pluginfile_url(
+            $file->get_contextid(),
+            $file->get_component(),
+            $file->get_filearea(),
+            $file->get_itemid(),
+            $file->get_filepath(),
+            $file->get_filename());
+
+        $mimetype = $file->get_mimetype();
+        $title = '';
+
+        $extension = resourcelib_get_extension($file->get_filename());
+
+        $mediamanager = core_media_manager::instance($PAGE);
+        $embedoptions = array(
+            core_media_manager::OPTION_TRUSTED => true,
+            core_media_manager::OPTION_BLOCK => true,
+        );
+
+        if (file_mimetype_in_typegroup($mimetype, 'web_image')) {  // It's an image
+            $code = resourcelib_embed_image($moodleurl->out(), $title);
+
+        } else if ($mimetype === 'application/pdf') {
+            // PDF document
+            $code = resourcelib_embed_pdf($moodleurl->out(), $title, get_string('view'));
+
+        } else if ($mediamanager->can_embed_url($moodleurl, $embedoptions)) {
+            // Media (audio/video) file.
+            $code = $mediamanager->embed_url($moodleurl, $title, 0, 0, $embedoptions);
+
+        } else {
+            // We need a way to discover if we are loading remote docs inside an iframe.
+            $moodleurl->param('embed', 1);
+
+            // anything else - just try object tag enlarged as much as possible
+            $code = resourcelib_embed_general($moodleurl, $title, get_string('view'), $mimetype);
+        }
+
+        $output = '';
+        $output .= '<div class="response text">';
+        $output .= $code;
+        $output .= '</div>';
+        return $output;
+    }
+
+    protected function form_length(\MoodleQuickForm $mform, $helpname = '') {
+        return question::form_length_hidden($mform);
+    }
+
+    protected function form_precise(\MoodleQuickForm $mform, $helpname = '') {
+        return question::form_precise_hidden($mform);
+    }
+
+}

classes/question/question.php

@@ -47,6 +47,7 @@
 define('QUESRATE', 8);
 define('QUESDATE', 9);
 define('QUESNUMERIC', 10);
+define('QUESFILE', 11);
 define('QUESPAGEBREAK', 99);
 define('QUESSECTIONTEXT', 100);
 
@@ -113,6 +114,7 @@ abstract class question {
         QUESDROP => 'drop',
         QUESRATE => 'rate',
         QUESDATE => 'date',
+        QUESFILE => 'file',
         QUESNUMERIC => 'numerical',
         QUESPAGEBREAK => 'pagebreak',
         QUESSECTIONTEXT => 'sectiontext'