Add ability to rename attachments

* Closes #4758

src/core/EntryAttachments.cpp

@@ -112,6 +112,13 @@ void EntryAttachments::remove(const QStringList& keys)
     }
 }
 
+void EntryAttachments::rename(const QString& key, const QString& newKey)
+{
+    const QByteArray val = value(key);
+    remove(key);
+    set(newKey, val);
+}
+
 bool EntryAttachments::isEmpty() const
 {
     return m_attachments.isEmpty();

src/core/EntryAttachments.h

@@ -36,6 +36,7 @@ public:
     void set(const QString& key, const QByteArray& value);
     void remove(const QString& key);
     void remove(const QStringList& keys);
+    void rename(const QString& key, const QString& newKey);
     bool isEmpty() const;
     void clear();
     void copyDataFrom(const EntryAttachments* other);

src/gui/entry/EntryAttachmentsModel.cpp

@@ -101,6 +101,28 @@ QVariant EntryAttachmentsModel::data(const QModelIndex& index, int role) const
     return QVariant();
 }
 
+bool EntryAttachmentsModel::setData(const QModelIndex& index, const QVariant& value, int role)
+{
+    if (!m_readOnly && index.column() == Columns::NameColumn) {
+        const QString key = value.toString().trimmed();
+        if (key.isEmpty() || m_entryAttachments->hasKey(key)) {
+            return false;
+        }
+        m_entryAttachments->rename(keyByIndex(index), key);
+        return true;
+    }
+    return QAbstractListModel::setData(index, value, role);
+}
+
+Qt::ItemFlags EntryAttachmentsModel::flags(const QModelIndex& index) const
+{
+    Qt::ItemFlags flags = QAbstractListModel::flags(index);
+    if (!m_readOnly && index.column() == Columns::NameColumn) {
+        flags = flags | Qt::ItemIsEditable;
+    }
+    return flags;
+}
+
 QString EntryAttachmentsModel::keyByIndex(const QModelIndex& index) const
 {
     if (!index.isValid()) {
@@ -150,3 +172,8 @@ void EntryAttachmentsModel::reset()
 {
     endResetModel();
 }
+
+void EntryAttachmentsModel::setReadOnly(bool readOnly)
+{
+    m_readOnly = readOnly;
+}

src/gui/entry/EntryAttachmentsModel.h

@@ -40,6 +40,8 @@ public:
     int columnCount(const QModelIndex& parent = QModelIndex()) const override;
     QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
     QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
+    bool setData(const QModelIndex& index, const QVariant& value, int role = Qt::EditRole) override;
+    Qt::ItemFlags flags(const QModelIndex& index) const override;
     QString keyByIndex(const QModelIndex& index) const;
 
 private slots:
@@ -50,10 +52,12 @@ private slots:
     void attachmentRemove();
     void aboutToReset();
     void reset();
+    void setReadOnly(bool readOnly);
 
 private:
     EntryAttachments* m_entryAttachments;
     QStringList m_headers;
+    bool m_readOnly = false;
 };
 
 #endif // KEEPASSX_ENTRYATTACHMENTSMODEL_H

src/gui/entry/EntryAttachmentsWidget.cpp

@@ -49,12 +49,14 @@ EntryAttachmentsWidget::EntryAttachmentsWidget(QWidget* parent)
             SIGNAL(selectionChanged(QItemSelection,QItemSelection)),
             SLOT(updateButtonsEnabled()));
     // clang-format on
+    connect(this, SIGNAL(readOnlyChanged(bool)), m_attachmentsModel, SLOT(setReadOnly(bool)));
 
     connect(m_ui->attachmentsView, SIGNAL(doubleClicked(QModelIndex)), SLOT(openAttachment(QModelIndex)));
     connect(m_ui->saveAttachmentButton, SIGNAL(clicked()), SLOT(saveSelectedAttachments()));
     connect(m_ui->openAttachmentButton, SIGNAL(clicked()), SLOT(openSelectedAttachments()));
     connect(m_ui->addAttachmentButton, SIGNAL(clicked()), SLOT(insertAttachments()));
     connect(m_ui->removeAttachmentButton, SIGNAL(clicked()), SLOT(removeSelectedAttachments()));
+    connect(m_ui->renameAttachmentButton, SIGNAL(clicked()), SLOT(renameSelectedAttachments()));
 
     updateButtonsVisible();
     updateButtonsEnabled();
@@ -184,6 +186,11 @@ void EntryAttachmentsWidget::removeSelectedAttachments()
     }
 }
 
+void EntryAttachmentsWidget::renameSelectedAttachments()
+{
+    m_ui->attachmentsView->edit(m_ui->attachmentsView->selectionModel()->selectedIndexes().first());
+}
+
 void EntryAttachmentsWidget::saveSelectedAttachments()
 {
     const QModelIndexList indexes = m_ui->attachmentsView->selectionModel()->selectedRows(0);
@@ -289,6 +296,7 @@ void EntryAttachmentsWidget::updateButtonsEnabled()
 
     m_ui->addAttachmentButton->setEnabled(!m_readOnly);
     m_ui->removeAttachmentButton->setEnabled(hasSelection && !m_readOnly);
+    m_ui->renameAttachmentButton->setEnabled(hasSelection && !m_readOnly);
 
     m_ui->saveAttachmentButton->setEnabled(hasSelection);
     m_ui->openAttachmentButton->setEnabled(hasSelection);

src/gui/entry/EntryAttachmentsWidget.h

@@ -45,6 +45,7 @@ signals:
 private slots:
     void insertAttachments();
     void removeSelectedAttachments();
+    void renameSelectedAttachments();
     void saveSelectedAttachments();
     void openAttachment(const QModelIndex& index);
     void openSelectedAttachments();

src/gui/entry/EntryAttachmentsWidget.ui

@@ -31,6 +31,9 @@
      <property name="accessibleName">
       <string>Attachments</string>
      </property>
+     <property name="editTriggers">
+      <set>QAbstractItemView::EditKeyPressed|QAbstractItemView::SelectedClicked</set>
+     </property>
     </widget>
    </item>
    <item>
@@ -74,6 +77,19 @@
         </property>
        </widget>
       </item>
+      <item>
+       <widget class="QPushButton" name="renameAttachmentButton">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+        <property name="accessibleName">
+         <string>Rename selected attachment</string>
+        </property>
+        <property name="text">
+         <string>Rename</string>
+        </property>
+       </widget>
+      </item>
       <item>
        <widget class="QPushButton" name="openAttachmentButton">
         <property name="enabled">