Ensure that the Follows handle the target value changing unexpectedly.

If the target's property was changed elsewhere while the Follow wasn't
running, it would fail to start when a source identical to its
current source valule was set.

2 files changed, 6 insertions, 6 deletions

diff --git a/src/declarative/util/qmleasefollow.cpp b/src/declarative/util/qmleasefollow.cpp
index 99720f8..9d17d25 100644
--- a/src/declarative/util/qmleasefollow.cpp
+++ b/src/declarative/util/qmleasefollow.cpp
@@ -210,7 +210,6 @@ void QmlEaseFollowPrivate::tick(int t)
         qreal value = 0.5 * a * time_seconds * time_seconds + vi * time_seconds;
         value = (invert?-1.0:1.0) * value;
         target.write(initialValue + value);
-
         out = initialValue + value;
     } else if (time_seconds < td) {
 
@@ -397,7 +396,7 @@ void QmlEaseFollow::setSourceValue(qreal s)
 {
     Q_D(QmlEaseFollow);
 
-    if (d->source == s)
+    if (d->clock.state() == QAbstractAnimation::Running && d->source == s)
         return;
 
     d->source = s;
diff --git a/src/declarative/util/qmlspringfollow.cpp b/src/declarative/util/qmlspringfollow.cpp
index 34ec976..569cc48 100644
--- a/src/declarative/util/qmlspringfollow.cpp
+++ b/src/declarative/util/qmlspringfollow.cpp
@@ -272,10 +272,11 @@ qreal QmlSpringFollow::sourceValue() const
 void QmlSpringFollow::setSourceValue(qreal value)
 {
     Q_D(QmlSpringFollow);
-    if (d->sourceValue != value) {
-        d->sourceValue = value;
-        d->start();
-    }
+    if (d->clock.state() == QAbstractAnimation::Running && d->sourceValue == value)
+        return;
+
+    d->sourceValue = value;
+    d->start();
 }
 
 /*!