messagelistmodel: use correct total size on incoming file

use the size from the daemon if the file is downloaded, else
use the size from the commit.

Change-Id: Ia4e7123558e93a1ab0879feab9a141ceefaf183a
GitLab: #833

src/app/commoncomponents/DataTransferMessageDelegate.qml

@@ -206,7 +206,8 @@ Loader {
                                             transferStats.progress !== transferStats.totalSize) {
                                         res += UtilsAdapter.humanFileSize(transferStats.progress) + " / "
                                     }
-                                    res += UtilsAdapter.humanFileSize(transferStats.totalSize)
+                                    var totalSize = transferStats.totalSize !== 0 ? transferStats.totalSize : TotalSize
+                                    res += UtilsAdapter.humanFileSize(totalSize)
                                 }
                                 return res + " - " + MessagesAdapter.getStatusString(Status)
                             }

src/libclient/conversationmodel.cpp

@@ -3778,7 +3778,7 @@ ConversationModel::getTransferInfo(const QString& conversationId,
         return;
     } else {
         QString path;
-        qlonglong bytesProgress, totalSize;
+        qlonglong bytesProgress = 0, totalSize = 0;
         owner.dataTransferModel
             ->fileTransferInfo(owner.id, conversationId, fileId, path, totalSize, bytesProgress);
         info.path = path;

src/libclient/messagelistmodel.cpp

@@ -391,6 +391,8 @@ MessageListModel::dataForItem(item_t item, int, int role) const
         return repliedMsg == -1
                    ? QVariant("")
                    : QVariant(data(repliedMsg, Role::Body).toString().replace("\n", " "));
+    case Role::TotalSize:
+        return QVariant(item.second.commit["totalSize"].toInt());
     case Role::TransferName:
         return QVariant(item.second.commit["displayName"]);
     case Role::Readers:

src/libclient/messagelistmodel.h

@@ -47,6 +47,7 @@ struct Info;
     X(ReplyTo) \
     X(ReplyToBody) \
     X(ReplyToAuthor) \
+    X(TotalSize) \
     X(TransferName) \
     X(Readers)