fun：添加Loading窗口。

ClientCore/ClientCore.cpp

@@ -181,6 +181,14 @@ void ClientCore::UseFrame(QSharedPointer<FrameBuffer> frame)
         emit sigOffline(frame);
         break;
     }
+    case FBT_MSGINFO_ASK: {
+        emit sigMsgAsk(frame);
+        break;
+    }
+    case FBT_MSGINFO_ANSWER: {
+        emit sigMsgAnswer(frame);
+        break;
+    }
     default:
         qCritical() << QString("未知的帧类型： %1").arg(frame->type);
         break;

ClientCore/ClientCore.h

@@ -78,6 +78,8 @@ signals:
     void sigFileInfo(QSharedPointer<FrameBuffer> frame);
     void sigOffline(QSharedPointer<FrameBuffer> frame);
     void sigYourId(QSharedPointer<FrameBuffer> frame);
+    void sigMsgAsk(QSharedPointer<FrameBuffer> frame);
+    void sigMsgAnswer(QSharedPointer<FrameBuffer> frame);
 
 signals:
     void conSuccess();

ClientCore/FileTrans.cpp

@@ -333,7 +333,6 @@ void FileTrans::SendFile(const QSharedPointer<DoTransTask>& task)
     auto* sendThread = new SendThread(clientCore_);
     sendThread->setTask(task);
     QMutexLocker locker(&sthMut_);
-    // TODO: check if already exist
     upTasks_[task->task.localId] = sendThread;
     sendThread->run();
 }