Resolved the bug about crash with an empty history chat

core/rosteritem.cpp

@@ -134,6 +134,8 @@ void Core::RosterItem::nextRequest()
                         last = true;
                     }
                 }
+            } else if (archiveState == empty && responseCache.size() == 0) {
+                last = true;
             }
             emit historyResponse(responseCache, last);
         }

ui/models/messagefeed.cpp

@@ -137,8 +137,12 @@ QVariant Models::MessageFeed::data(const QModelIndex& index, int role) const
                     answer = path;
                 }
             }
-            case Attach:
+                break;
+            case Attach: {
+                ::Models::Attach att;
                 
+                answer.setValue(att);
+            }
                 break;
             case Bulk: {
                 FeedItem item;
@@ -169,6 +173,7 @@ QVariant Models::MessageFeed::data(const QModelIndex& index, int role) const
                 }
                 answer.setValue(item);
             }
+                break;
             default:
                 break;
         }

ui/models/messagefeed.h

@@ -77,24 +77,12 @@ public:
         Bulk
     };
     
-    enum Attachment {
-        none,
-        remote,
-        downloading,
-        uploading,
-        ready
-    };
 private:
     enum SyncState {
         incomplete,
         syncing,
         complete
     };
-    struct Attach {
-        Attachment state;
-        qreal progress;
-        QString localPath;
-    };
     
     //tags
     struct id {};
@@ -135,6 +123,20 @@ private:
     static const QHash<int, QByteArray> roles;
 };
 
+enum Attachment {
+    none,
+    remote,
+    downloading,
+    uploading,
+    ready
+};
+
+struct Attach {
+    Attachment state;
+    qreal progress;
+    QString localPath;
+};
+
 struct FeedItem {
     QString text;
     QString sender;
@@ -143,10 +145,11 @@ struct FeedItem {
     bool correction;
     QDateTime date;
     Shared::Message::State state;
-    MessageFeed::Attachment attach;
+    Attach attach;
 };
 };
 
+Q_DECLARE_METATYPE(Models::Attach);
 Q_DECLARE_METATYPE(Models::FeedItem);
 
 #endif // MESSAGEFEED_H