Show remarks as hover-icons, instead of single column at the end

export.php

@@ -112,7 +112,7 @@ if ($formdata = $mform->get_data()) {
                 $text .= $sess->groupid ? $reportdata->groups[$sess->groupid]->name : get_string('commonsession', 'attendance');
                 $data->tabhead[] = $text;
                 if (isset($formdata->includeremarks)) {
-                    $data->tabhead[] = get_string('remark', 'attendance', $text);
+                    $data->tabhead[] = ''; // Space for the remarks.
                 }
             }
         } else {
@@ -216,7 +216,13 @@ function exporttotableed($data, $filename, $format) {
     $i = 3;
     $j = 0;
     foreach ($data->tabhead as $cell) {
-        $myxls->write($i, $j++, $cell, $formatbc);
+        // Merge cells if the heading would be empty (remarks column).
+        if (empty($cell)) {
+            $myxls->merge_cells($i, $j - 1, $i, $j);
+        } else {
+            $myxls->write($i, $j, $cell, $formatbc);
+        }
+        $j++;
     }
     $i++;
     $j = 0;

renderer.php

@@ -846,11 +846,6 @@ class mod_attendance_renderer extends plugin_renderer_base {
             $table->size[] = '1px';
         }
 
-        if ($reportdata->sessionslog) {
-            $table->head[] = get_string('remarks', 'attendance');
-            $table->align[] = 'center';
-            $table->size[] = '200px';
-         }
 
         if ($bulkmessagecapability) { // Display the table header for bulk messaging.
             // The checkbox must have an id of cb_selector so that the JavaScript will pick it up.
@@ -865,7 +860,7 @@ class mod_attendance_renderer extends plugin_renderer_base {
             $row->cells[] = $this->user_picture($user);  // Show different picture if it is a temporary user.
             $row->cells[] = html_writer::link($reportdata->url_view(array('studentid' => $user->id)), fullname($user));
             $cellsgenerator = new user_sessions_cells_html_generator($reportdata, $user);
-            $row->cells = array_merge($row->cells, $cellsgenerator->get_cells());
+            $row->cells = array_merge($row->cells, $cellsgenerator->get_cells(true));
 
             foreach ($reportdata->statuses as $status) {
                 if (array_key_exists($status->id, $reportdata->usersstats[$user->id])) {
@@ -880,14 +875,6 @@ class mod_attendance_renderer extends plugin_renderer_base {
                 $row->cells[] = format_float($reportdata->grades[$user->id]).' / '.format_float($reportdata->maxgrades[$user->id]);
             }
 
-            if ($reportdata->sessionslog) {
-                if (isset($sess) && isset($reportdata->sessionslog[$user->id][$sess->id]->remarks)) {
-                    $row->cells[] = $reportdata->sessionslog[$user->id][$sess->id]->remarks;
-                } else {
-                    $row->cells[] = '';
-                }
-            }
-
             if ($bulkmessagecapability) { // Create the checkbox for bulk messaging.
                 $row->cells[] = html_writer::checkbox('user'.$user->id, 'on', false);
             }

renderhelpers.php

@@ -162,8 +162,21 @@ class user_sessions_cells_html_generator extends user_sessions_cells_generator {
     }
     
     protected function construct_remarks_cell($text) {
-        $this->close_open_cell_if_needed();
-        $this->cells[] = $text;
+        global $OUTPUT;
+
+        if (!trim($text)) {
+            return;
+        }
+
+        // Format the remark.
+        $icon = $OUTPUT->pix_icon('i/info', '');
+        $remark = html_writer::span($text, 'remarkcontent');
+        $remark = html_writer::span($icon.$remark, 'remarkholder');
+
+        // Add it into the previous cell.
+        $markcell = array_pop($this->cells);
+        $markcell .= ' '.$remark;
+        $this->cells[] = $markcell;
     }
 
     protected function construct_not_existing_for_user_session_cell($text) {

styles.css

@@ -131,3 +131,24 @@
     text-align: right;
 }
 
+.path-mod-attendance .remarkholder {
+    position: relative;
+}
+
+.path-mod-attendance .remarkholder .remarkcontent {
+    display: none;
+    position: absolute;
+    border: 1px solid #ccc;
+    border-radius: 3px;
+    box-shadow: 3px 3px 5px #ccc;
+    background-color: white;
+    left: 20px;
+    top: 0;
+    padding: 5px;
+    width: 150px;
+    z-index: 5000;
+}
+
+.path-mod-attendance .remarkholder:hover .remarkcontent {
+    display: inline-block;
+}