1 files changed, 80 insertions, 0 deletions
diff --git a/launcher/launch/steps/Update.cpp b/launcher/launch/steps/Update.cpp
new file mode 100644
index 00000000..28bd153d
--- /dev/null
+++ b/launcher/launch/steps/Update.cpp
@@ -0,0 +1,80 @@
+/* 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.
+ */
+
+#include "Update.h"
+#include <launch/LaunchTask.h>
+
+void Update::executeTask()
+{
+    if(m_aborted)
+    {
+        emitFailed(tr("Task aborted."));
+        return;
+    }
+    m_updateTask.reset(m_parent->instance()->createUpdateTask(m_mode));
+    if(m_updateTask)
+    {
+        connect(m_updateTask.get(), SIGNAL(finished()), this, SLOT(updateFinished()));
+        connect(m_updateTask.get(), &Task::progress, this, &Task::setProgress);
+        connect(m_updateTask.get(), &Task::status, this, &Task::setStatus);
+        emit progressReportingRequest();
+        return;
+    }
+    emitSucceeded();
+}
+
+void Update::proceed()
+{
+    m_updateTask->start();
+}
+
+void Update::updateFinished()
+{
+    if(m_updateTask->wasSuccessful())
+    {
+        m_updateTask.reset();
+        emitSucceeded();
+    }
+    else
+    {
+        QString reason = tr("Instance update failed because: %1\n\n").arg(m_updateTask->failReason());
+        m_updateTask.reset();
+        emit logLine(reason, MessageLevel::Fatal);
+        emitFailed(reason);
+    }
+}
+
+bool Update::canAbort() const
+{
+    if(m_updateTask)
+    {
+        return m_updateTask->canAbort();
+    }
+    return true;
+}
+
+
+bool Update::abort()
+{
+    m_aborted = true;
+    if(m_updateTask)
+    {
+        if(m_updateTask->canAbort())
+        {
+            return m_updateTask->abort();
+        }
+    }
+    return true;
+}