Update UpcomingEventsDataSource.swift

Clocker/Panel/Upcoming Events/UpcomingEventsDataSource.swift

@@ -10,19 +10,32 @@ class UpcomingEventsDataSource: NSObject, NSCollectionViewDataSource, NSCollecti
     }
     
     func collectionView(_: NSCollectionView, numberOfItemsInSection _: Int) -> Int {
+        if upcomingEvents.isEmpty {
+            return 1
+        }
         return upcomingEvents.count
     }
 
     func collectionView(_ collectionView: NSCollectionView, itemForRepresentedObjectAt indexPath: IndexPath) -> NSCollectionViewItem {
         let item = collectionView.makeItem(withIdentifier: UpcomingEventViewItem.reuseIdentifier, for: indexPath) as! UpcomingEventViewItem
-        let currentEventInfo = upcomingEvents[indexPath.item]
+        if upcomingEvents.isEmpty {
+            let title = NSLocalizedString("See your next Calendar event here.", comment: "Next Event Label for no Calendar access")
+            let subtitle = NSLocalizedString("Click here to start.", comment: "Button Title for no Calendar access")
+            item.setup(title, subtitle, NSColor(red: 97 / 255.0, green: 194 / 255.0, blue: 80 / 255.0, alpha: 1.0))
+            return item
+        }
     
+        let currentEventInfo = upcomingEvents[indexPath.item]
         let upcomingEventSubtitle = currentEventInfo.isAllDay ? "All-Day" : currentEventInfo.metadataForMeeting()
         item.setup(currentEventInfo.event.title, upcomingEventSubtitle, currentEventInfo.event.calendar.color)
         return item
     }
     
     func collectionView(_ collectionView: NSCollectionView, layout collectionViewLayout: NSCollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> NSSize {
+        if upcomingEvents.isEmpty {
+            return NSSize(width: 325, height: 50)
+        }
+        
         let currentEventInfo = upcomingEvents[indexPath.item]
         let prefferedSize = avenirLightFont.size(currentEventInfo.event.title, 250, attributes: [NSAttributedString.Key.font: avenirLightFont,])
         return NSSize(width: prefferedSize.width, height: 50)