Fix #357 - Added QR code icon (#376)

pix/qrcode.svg

@@ -0,0 +1 @@
+<svg aria-hidden="true" focusable="false" data-prefix="fas" data-icon="qrcode" class="svg-inline--fa fa-qrcode fa-w-14" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><path fill="currentColor" d="M0 224h192V32H0v192zM64 96h64v64H64V96zm192-64v192h192V32H256zm128 128h-64V96h64v64zM0 480h192V288H0v192zm64-128h64v64H64v-64zm352-64h32v128h-96v-32h-32v96h-64V288h96v32h64v-32zm0 160h32v32h-32v-32zm-64 0h32v32h-32v-32z"></path></svg>

renderables.php

@@ -854,8 +854,14 @@ class attendance_password_icon implements renderable, templatable {
         $data->heading = '';
         $data->text = $this->text;
 
+        if ($this->includeqrcode == 1) {
+            $pix = 'qrcode';
+        } else {
+            $pix = 'key';
+        }
+
         $data->alt = $title;
-        $data->icon = (new pix_icon('key', '', 'attendance'))->export_for_template($output);
+        $data->icon = (new pix_icon($pix, '', 'attendance'))->export_for_template($output);
         $data->linktext = '';
         $data->title = $title;
         $data->url = (new moodle_url('/mod/attendance/password.php', [

renderer.php

@@ -318,6 +318,13 @@ class mod_attendance_renderer extends plugin_renderer_base {
             has_capability('mod/attendance:changeattendances', $sessdata->att->context))) {
 
             $icon = new attendance_password_icon($sess->studentpassword, $sess->id);
+
+            if ($sess->includeqrcode == 1) {
+                $icon->includeqrcode = 1;
+            } else {
+                $icon->includeqrcode = 0;
+            }
+
             $actions .= $this->render($icon);
         }