qtquick: Move the "tabbar autohide" property to TabBar

It's a better location than in Stack

src/controllers/TabBar.cpp

@@ -30,6 +30,7 @@ Controllers::TabBar::TabBar(Stack *tabWidget)
     , Draggable(view())
     , m_tabWidget(tabWidget)
 {
+    view()->init();
 }
 
 Controllers::TabBar::~TabBar()
@@ -177,6 +178,11 @@ Group *Controllers::TabBar::group() const
     return m_tabWidget->group();
 }
 
+Stack *TabBar::stack() const
+{
+    return m_tabWidget;
+}
+
 void Controllers::TabBar::moveTabTo(int from, int to)
 {
     dynamic_cast<Views::TabBarViewInterface *>(view())->moveTabTo(from, to);

src/controllers/TabBar.h

@@ -64,6 +64,7 @@ public:
     bool isMDI() const override;
 
     Group *group() const;
+    Stack *stack() const;
 
     void moveTabTo(int from, int to);
     QString text(int index) const;

src/qtquick/views/Stack_qtquick.h

@@ -47,8 +47,6 @@ class DOCKS_EXPORT Stack_qtquick
     Q_OBJECT
     Q_PROPERTY(DockWidgetModel *dockWidgetModel READ dockWidgetModel CONSTANT)
     Q_PROPERTY(QObject *tabBar READ tabBarViewObj NOTIFY tabBarChanged)
-    Q_PROPERTY(bool tabBarAutoHide READ tabBarAutoHide NOTIFY tabBarAutoHideChanged)
-
 public:
     explicit Stack_qtquick(Controllers::Stack *controller,
                            QQuickItem *parent = nullptr);

src/qtquick/views/TabBar_qtquick.cpp

@@ -19,6 +19,7 @@
 
 #include "TabBar_qtquick.h"
 #include "kddockwidgets/controllers/TabBar.h"
+#include "kddockwidgets/controllers/Stack.h"
 
 #include <QMetaObject>
 #include <QMouseEvent>
@@ -32,6 +33,13 @@ TabBar_qtquick::TabBar_qtquick(Controllers::TabBar *controller, QQuickItem *pare
 {
 }
 
+void TabBar_qtquick::init()
+{
+    m_tabBarAutoHideChanged = m_tabBar->stack()->tabBarAutoHideChanged.connect([this] {
+        Q_EMIT tabBarAutoHideChanged();
+    });
+}
+
 QHash<int, QQuickItem *> TabBar_qtquick::qmlTabs() const
 {
     if (!m_tabBarQmlItem) {
@@ -171,3 +179,8 @@ bool TabBar_qtquick::tabsAreMovable() const
 {
     return false;
 }
+
+bool TabBar_qtquick::tabBarAutoHide() const
+{
+    return m_tabBar->stack()->tabBarAutoHide();
+}

src/qtquick/views/TabBar_qtquick.h

@@ -27,6 +27,8 @@
 #include <QPointer>
 #include <QHash>
 
+#include "kdbindings/signal.h"
+
 namespace KDDockWidgets::Controllers {
 class TabBar;
 }
@@ -42,6 +44,7 @@ class DOCKS_EXPORT TabBar_qtquick
 {
     Q_OBJECT
     Q_PROPERTY(QQuickItem *tabBarQmlItem READ tabBarQmlItem WRITE setTabBarQmlItem NOTIFY tabBarQmlItemChanged)
+    Q_PROPERTY(bool tabBarAutoHide READ tabBarAutoHide NOTIFY tabBarAutoHideChanged)
 public:
     explicit TabBar_qtquick(Controllers::TabBar *controller, QQuickItem *parent = nullptr);
     int tabAt(QPoint localPos) const override;
@@ -56,17 +59,24 @@ public:
     Controllers::DockWidget *currentDockWidget() const override;
     bool tabsAreMovable() const override;
 
+    /// Returns whether the tab bar should hide when there's only 1 tab visible
+    /// Default true, unless Flag_HideTitleBarWhenTabsVisible
+    bool tabBarAutoHide() const;
+
 Q_SIGNALS:
     void tabBarQmlItemChanged();
+    void tabBarAutoHideChanged();
 
 protected:
     bool event(QEvent *ev) override;
+    void init() override;
 
 private:
     QHash<int, QQuickItem *> qmlTabs() const;
     QQuickItem *tabAt(int index) const;
     QQuickItem *listView() const;
     QPointer<QQuickItem> m_tabBarQmlItem;
+    KDBindings::ScopedConnection m_tabBarAutoHideChanged;
 };
 }