Admin: Add config fullcalendar_settings BT#18748

In order to edit the FullCalendar v3 JS settings.

main/calendar/agenda_js.php

@@ -299,6 +299,14 @@ if (!empty($onHoverInfo)) {
 }
 $tpl->assign('on_hover_info', $options);
 
+$settings = api_get_configuration_value('fullcalendar_settings');
+$extraSettings = '';
+if (!empty($settings) && isset($settings['settings']) && !empty($settings['settings'])) {
+    $encoded = json_encode($settings['settings']);
+    $extraSettings = substr($encoded, 1, -1).',';
+}
+$tpl->assign('fullcalendar_settings', $extraSettings);
+
 $templateName = $tpl->get_template('agenda/month.tpl');
 $content = $tpl->fetch($templateName);
 $tpl->assign('content', $content);

main/install/configuration.dist.php

@@ -1902,6 +1902,19 @@ ALTER TABLE gradebook_comment ADD CONSTRAINT FK_C3B70763AD3ED51C FOREIGN KEY (gr
 // Enable X-Sendfile headers on forced download files going through document/download.php
 //$_configuration['enable_x_sendfile_headers'] = false;
 
+// Extra settings for the agenda (FullCalendar)
+/*$_configuration['fullcalendar_settings'] = [
+    'settings' => [
+        'businessHours' => [
+            // days of week. an array of zero-based day of week integers (0=Sunday)
+            'dow' => [0, 1, 2, 3, 4], // Monday - Friday
+            'start'  => '10:00',
+            'end' => '18:00',
+        ],
+        'firstDay' => 0, // 0 = Sunday, 1 = Monday
+    ]
+];*/
+
 // KEEP THIS AT THE END
 // -------- Custom DB changes
 // Add user activation by confirmation email

main/template/default/agenda/month.tpl

@@ -239,7 +239,10 @@ $(function() {
         defaultDate: defaultStartDate,
         firstHour: 8,
         firstDay: 1,
-		selectable	: true,
+        {% if fullcalendar_settings %}
+            {{ fullcalendar_settings  }}
+        {% endif %}
+        selectable	: true,
 		selectHelper: true,
         viewDisplay: function(view) {
             /* When changing the view update the qtips */