1 files changed, 18 insertions, 8 deletions
diff --git a/src/libs/installer/extractarchiveoperation.h b/src/libs/installer/extractarchiveoperation.h
index fa05d403a..b1a696788 100644
--- a/src/libs/installer/extractarchiveoperation.h
+++ b/src/libs/installer/extractarchiveoperation.h
@@ -1,6 +1,6 @@
 /**************************************************************************
 **
-** Copyright (C) 2017 The Qt Company Ltd.
+** Copyright (C) 2022 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the Qt Installer Framework.
@@ -43,10 +43,12 @@ class INSTALLER_EXPORT ExtractArchiveOperation : public QObject, public Operatio
 public:
     explicit ExtractArchiveOperation(PackageManagerCore *core);
 
-    void backup();
-    bool performOperation();
-    bool undoOperation();
-    bool testOperation();
+    void backup() override;
+    bool performOperation() override;
+    bool undoOperation() override;
+    bool testOperation() override;
+
+    quint64 sizeHint() override;
 
     bool readDataFileContents(QString &targetDir, QStringList *resultList);
 
@@ -58,13 +60,21 @@ private:
     void startUndoProcess(const QStringList &files);
     void deleteDataFile(const QString &fileName);
 
-private:
-    QString m_relocatedDataFileName;
+    QString generateBackupName(const QString &fn);
+    bool prepareForFile(const QString &filename);
 
 private:
+    typedef QPair<QString, QString> Backup;
+    typedef QVector<Backup> BackupFiles;
+
     class Callback;
-    class Runnable;
+    class Worker;
     class Receiver;
+
+private:
+    QString m_relocatedDataFileName;
+    BackupFiles m_backupFiles;
+    quint64 m_totalEntries;
 };
 
 }