MultiZim Select-All Button Key Press Compatible

QCheckbox does not provide support out of the box for key press checking.

src/multizimbutton.cpp

@@ -13,7 +13,7 @@ MultiZimButton::MultiZimButton(QWidget *parent) :
     QToolButton(parent), 
     mp_buttonList(new QListWidget),
     mp_radioButtonGroup(new QButtonGroup(this)),
-    mp_selectAllButton(new QCheckBox(gt("select-all"), this))
+    mp_selectAllButton(new SelectAllButton(gt("select-all"), this))
 {
     setMenu(new QMenu(this));
     setPopupMode(QToolButton::InstantPopup);
@@ -172,3 +172,13 @@ ZimItemWidget::ZimItemWidget(QString text, QIcon icon, QWidget *parent) :
     layout()->addWidget(textLabel);
     layout()->addWidget(radioBt);
 }
+
+void SelectAllButton::keyPressEvent(QKeyEvent *e)
+{
+    if (e->key() == Qt::Key_Enter || e->key() == Qt::Key_Return)
+    {
+        toggle();
+        return;
+    }
+    QCheckBox::keyPressEvent(e);
+}

src/multizimbutton.h

@@ -2,13 +2,23 @@
 #define MULTIZIMBUTTON_H
 
 #include <QToolButton>
+#include <QCheckBox>
 
 class QListWidget;
 class QButtonGroup;
 class QListWidgetItem;
 class QRadioButton;
 class QLabel;
-class QCheckBox;
+
+class SelectAllButton : public QCheckBox {
+    Q_OBJECT
+
+public:
+    SelectAllButton(const QString &text, QWidget *parent = nullptr) : QCheckBox(text, parent) {}
+
+protected:
+    void keyPressEvent(QKeyEvent *e) override;
+};
 
 class ZimItemWidget : public QWidget {
     Q_OBJECT
@@ -37,7 +47,7 @@ public slots:
 private:
     QListWidget* mp_buttonList;
     QButtonGroup* mp_radioButtonGroup;
-    QCheckBox* mp_selectAllButton;
+    SelectAllButton* mp_selectAllButton;
 
     ZimItemWidget* getZimWidget(int row) const;
     void setItemZimWidget(QListWidgetItem* item, const QString& title, const QIcon& icon);