Introduced missing CustomData on Group and Entry

Introduce missing CustomData-attributes of KDBX4 format to allow
storing of plugin data for groups and entries - adopt Metadata to use
the same storage mechanism
Add simple view for CustomData as part of EditWidgetProperties
Tracking of CustomData-Modification using SIGNAL-SLOT update-mechanism

1 files changed, 64 insertions, 0 deletions

diff --git a/src/core/CustomData.h b/src/core/CustomData.h
new file mode 100644
index 000000000..722d9bd28
--- /dev/null
+++ b/src/core/CustomData.h
@@ -0,0 +1,64 @@
+/*
+ *  Copyright (C) 2012 Felix Geyer <debfx@fobos.de>
+ *  Copyright (C) 2017 KeePassXC Team <team@keepassxc.org>
+ *
+ *  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 2 or (at your option)
+ *  version 3 of the License.
+ *
+ *  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 <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef KEEPASSX_CUSTOMDATA_H
+#define KEEPASSX_CUSTOMDATA_H
+
+#include <QMap>
+#include <QObject>
+#include <QSet>
+#include <QStringList>
+
+class CustomData : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit CustomData(QObject* parent = nullptr);
+    QList<QString> keys() const;
+    bool hasKey(const QString& key) const;
+    QString value(const QString& key) const;
+    bool contains(const QString& key) const;
+    bool containsValue(const QString& value) const;
+    void set(const QString& key, const QString& value);
+    void remove(const QString& key);
+    void rename(const QString& oldKey, const QString& newKey);
+    void clear();
+    bool isEmpty() const;
+    int dataSize();
+    void copyDataFrom(const CustomData* other);
+    bool operator==(const CustomData& other) const;
+    bool operator!=(const CustomData& other) const;
+
+
+signals:
+    void modified();
+    void aboutToBeAdded(const QString& key);
+    void added(const QString& key);
+    void aboutToBeRemoved(const QString& key);
+    void removed(const QString& key);
+    void aboutToRename(const QString& oldKey, const QString& newKey);
+    void renamed(const QString& oldKey, const QString& newKey);
+    void aboutToBeReset();
+    void reset();
+
+private:
+    QHash<QString, QString> m_data;
+};
+
+#endif // KEEPASSX_CUSTOMDATA_H