Add offline mode UI

launcher/ui/dialogs/OfflineLoginDialog.h

@@ -0,0 +1,58 @@
+/* Copyright 2013-2021 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <QtWidgets/QDialog>
+#include <QtCore/QEventLoop>
+
+#include "minecraft/auth/MinecraftAccount.h"
+#include "tasks/Task.h"
+
+namespace Ui
+{
+class OfflineLoginDialog;
+}
+
+class OfflineLoginDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    ~OfflineLoginDialog();
+
+    static MinecraftAccountPtr newAccount(QWidget *parent, QString message);
+
+private:
+    explicit OfflineLoginDialog(QWidget *parent = 0);
+
+    void setUserInputsEnabled(bool enable);
+
+protected
+slots:
+    void accept();
+
+    void onTaskFailed(const QString &reason);
+    void onTaskSucceeded();
+    void onTaskStatus(const QString &status);
+    void onTaskProgress(qint64 current, qint64 total);
+
+    void on_userTextBox_textEdited(const QString &newText);
+
+private:
+    Ui::OfflineLoginDialog *ui;
+    MinecraftAccountPtr m_account;
+    Task::Ptr m_loginTask;
+};