Preparation for large file transfers

widget/form/chatform.cpp

@@ -295,11 +295,11 @@ void ChatForm::onAttachClicked()
     QFile file(path);
     if (!file.exists() || !file.open(QIODevice::ReadOnly))
         return;
-    QByteArray fileData = file.readAll();
+    long long filesize = file.size();
     file.close();
     QFileInfo fi(path);
 
-    emit sendFile(f->friendId, fi.fileName(), fileData);
+    emit sendFile(f->friendId, fi.fileName(), path, filesize);
 }
 
 void ChatForm::onSliderRangeChanged()

widget/form/chatform.h

@@ -52,7 +52,7 @@ public:
 
 signals:
     void sendMessage(int, QString);
-    void sendFile(int32_t friendId, QString, QByteArray);
+    void sendFile(int32_t friendId, QString, QString, long long);
     void startCall(int friendId);
     void startVideoCall(int friendId, bool video);
     void answerCall(int callId);