NOISSUE Flatten gui and logic libraries into MultiMC

launcher/tasks/Task.cpp

@@ -0,0 +1,168 @@
+/* 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 "Task.h"
+
+#include <QDebug>
+
+Task::Task(QObject *parent) : QObject(parent)
+{
+}
+
+void Task::setStatus(const QString &new_status)
+{
+    if(m_status != new_status)
+    {
+        m_status = new_status;
+        emit status(m_status);
+    }
+}
+
+void Task::setProgress(qint64 current, qint64 total)
+{
+    m_progress = current;
+    m_progressTotal = total;
+    emit progress(m_progress, m_progressTotal);
+}
+
+void Task::start()
+{
+    switch(m_state)
+    {
+        case State::Inactive:
+        {
+            qDebug() << "Task" << describe() << "starting for the first time";
+            break;
+        }
+        case State::AbortedByUser:
+        {
+            qDebug() << "Task" << describe() << "restarting for after being aborted by user";
+            break;
+        }
+        case State::Failed:
+        {
+            qDebug() << "Task" << describe() << "restarting for after failing at first";
+            break;
+        }
+        case State::Succeeded:
+        {
+            qDebug() << "Task" << describe() << "restarting for after succeeding at first";
+            break;
+        }
+        case State::Running:
+        {
+            qWarning() << "MultiMC tried to start task" << describe() << "while it was already running!";
+            return;
+        }
+    }
+    // NOTE: only fall thorugh to here in end states
+    m_state = State::Running;
+    emit started();
+    executeTask();
+}
+
+void Task::emitFailed(QString reason)
+{
+    // Don't fail twice.
+    if (!isRunning())
+    {
+        qCritical() << "Task" << describe() << "failed while not running!!!!: " << reason;
+        return;
+    }
+    m_state = State::Failed;
+    m_failReason = reason;
+    qCritical() << "Task" << describe() << "failed: " << reason;
+    emit failed(reason);
+    emit finished();
+}
+
+void Task::emitAborted()
+{
+    // Don't abort twice.
+    if (!isRunning())
+    {
+        qCritical() << "Task" << describe() << "aborted while not running!!!!";
+        return;
+    }
+    m_state = State::AbortedByUser;
+    m_failReason = "Aborted.";
+    qDebug() << "Task" << describe() << "aborted.";
+    emit failed(m_failReason);
+    emit finished();
+}
+
+void Task::emitSucceeded()
+{
+    // Don't succeed twice.
+    if (!isRunning())
+    {
+        qCritical() << "Task" << describe() << "succeeded while not running!!!!";
+        return;
+    }
+    m_state = State::Succeeded;
+    qDebug() << "Task" << describe() << "succeeded";
+    emit succeeded();
+    emit finished();
+}
+
+QString Task::describe()
+{
+    QString outStr;
+    QTextStream out(&outStr);
+    out << metaObject()->className() << QChar('(');
+    auto name = objectName();
+    if(name.isEmpty())
+    {
+        out << QString("0x%1").arg((quintptr)this, 0, 16);
+    }
+    else
+    {
+        out << name;
+    }
+    out << QChar(')');
+    out.flush();
+    return outStr;
+}
+
+bool Task::isRunning() const
+{
+    return m_state == State::Running;
+}
+
+bool Task::isFinished() const
+{
+    return m_state != State::Running && m_state != State::Inactive;
+}
+
+bool Task::wasSuccessful() const
+{
+    return m_state == State::Succeeded;
+}
+
+QString Task::failReason() const
+{
+    return m_failReason;
+}
+
+void Task::logWarning(const QString& line)
+{
+    qWarning() << line;
+    m_Warnings.append(line);
+}
+
+QStringList Task::warnings() const
+{
+    return m_Warnings;
+}