QQuickWindow: Don't leak the animation controller

There are ways to close the window without hitting the code paths in the
render loops that delete the animation controller. Probably if no frame
was ever rendered.

Change-Id: If3e9d2051525c4ff50eda19084c967578fe4f4b0
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

3 files changed, 3 insertions, 4 deletions

diff --git a/src/quick/items/qquickrendercontrol.cpp b/src/quick/items/qquickrendercontrol.cpp
index 83b3372ed9..addd52cb1d 100644
--- a/src/quick/items/qquickrendercontrol.cpp
+++ b/src/quick/items/qquickrendercontrol.cpp
@@ -188,8 +188,7 @@ void QQuickRenderControlPrivate::windowDestroyed()
     if (window) {
         rc->invalidate();
 
-        delete QQuickWindowPrivate::get(window)->animationController;
-        QQuickWindowPrivate::get(window)->animationController = nullptr;
+        QQuickWindowPrivate::get(window)->animationController.reset();
 
 #if QT_CONFIG(quick_shadereffect) && QT_CONFIG(opengl)
         if (QOpenGLContext::currentContext())
diff --git a/src/quick/items/qquickwindow.cpp b/src/quick/items/qquickwindow.cpp
index e00789be85..98f5d8a8c1 100644
--- a/src/quick/items/qquickwindow.cpp
+++ b/src/quick/items/qquickwindow.cpp
@@ -644,7 +644,7 @@ void QQuickWindowPrivate::init(QQuickWindow *c, QQuickRenderControl *control)
         q->setVulkanInstance(QSGRhiSupport::vulkanInstance());
 #endif
 
-    animationController = new QQuickAnimatorController(q);
+    animationController.reset(new QQuickAnimatorController(q));
 
     QObject::connect(context, SIGNAL(initialized()), q, SIGNAL(sceneGraphInitialized()), Qt::DirectConnection);
     QObject::connect(context, SIGNAL(invalidated()), q, SIGNAL(sceneGraphInvalidated()), Qt::DirectConnection);
diff --git a/src/quick/items/qquickwindow_p.h b/src/quick/items/qquickwindow_p.h
index becbae7fe3..7d1767c40e 100644
--- a/src/quick/items/qquickwindow_p.h
+++ b/src/quick/items/qquickwindow_p.h
@@ -254,7 +254,7 @@ public:
 
     QSGRenderLoop *windowManager;
     QQuickRenderControl *renderControl;
-    QQuickAnimatorController *animationController;
+    QScopedPointer<QQuickAnimatorController> animationController;
     QScopedPointer<QTouchEvent> delayedTouch;
 
     int pointerEventRecursionGuard;