Show starting live location beacons as location delegates in the timeline

Also, hide ending live location beacon state changes.

src/models/messageeventmodel.cpp

@@ -525,6 +525,9 @@ QVariant MessageEventModel::data(const QModelIndex &idx, int role) const
             return DelegateType::Sticker;
         }
         if (evt.isStateEvent()) {
+            if (evt.matrixType() == "org.matrix.msc3672.beacon_info"_ls) {
+                return DelegateType::LiveLocation;
+            }
             return DelegateType::State;
         }
         if (is<const EncryptedEvent>(evt)) {
@@ -635,6 +638,11 @@ QVariant MessageEventModel::data(const QModelIndex &idx, int role) const
             return EventStatus::Hidden;
         }
 
+        // hide ending live location beacons
+        if (evt.isStateEvent() && evt.matrixType() == "org.matrix.msc3672.beacon_info"_ls && !evt.contentJson()["live"_ls].toBool()) {
+            return EventStatus::Hidden;
+        }
+
         return EventStatus::Normal;
     }
 

src/models/messageeventmodel.h

@@ -53,6 +53,7 @@ public:
         ReadMarker, /**< The local user read marker. */
         Poll, /**< The initial event for a poll. */
         Location, /**< A location event. */
+        LiveLocation, /**< The initial event of a shared live location (i.e., the place where this is supposed to be shown in the timeline). */
         Other, /**< Anything that cannot be classified as another type. */
     };
     Q_ENUM(DelegateType);