1 files changed, 74 insertions, 0 deletions
diff --git a/meshmc/launcher/ui/pages/instance/LegacyUpgradePage.cpp b/meshmc/launcher/ui/pages/instance/LegacyUpgradePage.cpp
new file mode 100644
index 0000000000..7d12fad0e7
--- /dev/null
+++ b/meshmc/launcher/ui/pages/instance/LegacyUpgradePage.cpp
@@ -0,0 +1,74 @@
+/* SPDX-FileCopyrightText: 2026 Project Tick
+ * SPDX-FileContributor: Project Tick
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ *   MeshMC - A Custom Launcher for Minecraft
+ *   Copyright (C) 2026 Project Tick
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "LegacyUpgradePage.h"
+#include "ui_LegacyUpgradePage.h"
+
+#include "InstanceList.h"
+#include "minecraft/legacy/LegacyInstance.h"
+#include "minecraft/legacy/LegacyUpgradeTask.h"
+#include "Application.h"
+
+#include "ui/dialogs/CustomMessageBox.h"
+#include "ui/dialogs/ProgressDialog.h"
+
+LegacyUpgradePage::LegacyUpgradePage(InstancePtr inst, QWidget* parent)
+	: QWidget(parent), ui(new Ui::LegacyUpgradePage), m_inst(inst)
+{
+	ui->setupUi(this);
+}
+
+LegacyUpgradePage::~LegacyUpgradePage()
+{
+	delete ui;
+}
+
+void LegacyUpgradePage::runModalTask(Task* task)
+{
+	connect(task, &Task::failed, [this](QString reason) {
+		CustomMessageBox::selectable(this, tr("Error"), reason,
+									 QMessageBox::Warning)
+			->show();
+	});
+	ProgressDialog loadDialog(this);
+	loadDialog.setSkipButton(true, tr("Abort"));
+	if (loadDialog.execWithTask(task) == QDialog::Accepted) {
+		m_container->requestClose();
+	}
+}
+
+void LegacyUpgradePage::on_upgradeButton_clicked()
+{
+	QString newName = tr("%1 (Migrated)").arg(m_inst->name());
+	auto upgradeTask = new LegacyUpgradeTask(m_inst);
+	upgradeTask->setName(newName);
+	upgradeTask->setGroup(
+		APPLICATION->instances()->getInstanceGroup(m_inst->id()));
+	upgradeTask->setIcon(m_inst->iconKey());
+	unique_qobject_ptr<Task> task(
+		APPLICATION->instances()->wrapInstanceTask(upgradeTask));
+	runModalTask(task.get());
+}
+
+bool LegacyUpgradePage::shouldDisplay() const
+{
+	return !m_inst->isRunning();
+}