Quick Animations: Fix crash

SwipeDelegate causes the running animation job to be deleted when
calling swipe.close in swipe.completed. Employ the RETURN_IF_DELETED
check in more places to avoid crashes.

Fixes: QTBUG-100560
Task-number: QTBUG-103223
Pick-to: 6.3 6.2 5.15
Change-Id: I276eeaa9aed1bdb36449b322a24641fa02c4d5e4
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>

2 files changed, 4 insertions, 4 deletions

diff --git a/src/qml/animations/qcontinuinganimationgroupjob.cpp b/src/qml/animations/qcontinuinganimationgroupjob.cpp
index 7d24d8ce55..6d2dc38bfd 100644
--- a/src/qml/animations/qcontinuinganimationgroupjob.cpp
+++ b/src/qml/animations/qcontinuinganimationgroupjob.cpp
@@ -81,9 +81,9 @@ void QContinuingAnimationGroupJob::updateState(QAbstractAnimationJob::State newS
             return;
         }
         for (QAbstractAnimationJob *animation  : m_children) {
-            resetUncontrolledAnimationFinishTime(animation);
+            RETURN_IF_DELETED(resetUncontrolledAnimationFinishTime(animation));
             animation->setDirection(m_direction);
-            animation->start();
+            RETURN_IF_DELETED(animation->start());
         }
         break;
     }
diff --git a/src/qml/animations/qparallelanimationgroupjob.cpp b/src/qml/animations/qparallelanimationgroupjob.cpp
index 4da4a06af2..0d67b2451e 100644
--- a/src/qml/animations/qparallelanimationgroupjob.cpp
+++ b/src/qml/animations/qparallelanimationgroupjob.cpp
@@ -144,10 +144,10 @@ void QParallelAnimationGroupJob::updateState(QAbstractAnimationJob::State newSta
                 animation->stop();
                 m_previousLoop = m_direction == Forward ? 0 : m_loopCount - 1;
             }
-            resetUncontrolledAnimationFinishTime(animation);
+            RETURN_IF_DELETED(resetUncontrolledAnimationFinishTime(animation));
             animation->setDirection(m_direction);
             if (shouldAnimationStart(animation, oldState == Stopped))
-                animation->start();
+                RETURN_IF_DELETED(animation->start());
         }
         break;
     }