Fix potential BC break in QTabBar.

Move code from mouseDoubleClickEvent() to event().
Introduced by 252bad7c589e03d3e12df02354b00a84d8e3159a .

Task-number: QTBUG-34670
Change-Id: I98ed24f26977220cf03524cfe001524364473982
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>

2 files changed, 6 insertions, 18 deletions

diff --git a/src/widgets/widgets/qtabbar.cpp b/src/widgets/widgets/qtabbar.cpp
index 094e9af0de..dfd1f1022c 100644
--- a/src/widgets/widgets/qtabbar.cpp
+++ b/src/widgets/widgets/qtabbar.cpp
@@ -1496,6 +1496,12 @@ bool QTabBar::event(QEvent *event)
             }
         }
 #endif
+    } else if (event->type() == QEvent::MouseButtonDblClick) { // ### fixme Qt 6: move to mouseDoubleClickEvent(), here for BC reasons.
+        const QPoint pos = static_cast<const QMouseEvent *>(event)->pos();
+        const bool isEventInCornerButtons = (!d->leftB->isHidden() && d->leftB->geometry().contains(pos))
+                                            || (!d->rightB->isHidden() && d->rightB->geometry().contains(pos));
+        if (!isEventInCornerButtons)
+            emit tabBarDoubleClicked(tabAt(pos));
     }
     return QWidget::event(event);
 }
@@ -1723,23 +1729,6 @@ void QTabBarPrivate::moveTab(int index, int offset)
     q_func()->update();
 }
 
-
-/*!
-    \reimp
-*/
-void QTabBar::mouseDoubleClickEvent(QMouseEvent *event)
-{
-    Q_D(QTabBar);
-
-    const QPoint pos = event->pos();
-    const bool isEventInCornerButtons = (!d->leftB->isHidden() && d->leftB->geometry().contains(pos))
-                                     || (!d->rightB->isHidden() && d->rightB->geometry().contains(pos));
-    if (!isEventInCornerButtons) {
-        const int index = tabAt(pos);
-        emit tabBarDoubleClicked(index);
-    }
-}
-
 /*!\reimp
 */
 void QTabBar::mousePressEvent(QMouseEvent *event)
diff --git a/src/widgets/widgets/qtabbar.h b/src/widgets/widgets/qtabbar.h
index 1f7b8f6b03..a0e52c2f86 100644
--- a/src/widgets/widgets/qtabbar.h
+++ b/src/widgets/widgets/qtabbar.h
@@ -188,7 +188,6 @@ protected:
     void showEvent(QShowEvent *);
     void hideEvent(QHideEvent *);
     void paintEvent(QPaintEvent *);
-    void mouseDoubleClickEvent(QMouseEvent *);
     void mousePressEvent (QMouseEvent *);
     void mouseMoveEvent (QMouseEvent *);
     void mouseReleaseEvent (QMouseEvent *);