Ensure Behavior stops animating when a new value is set while disabled.

Otherwise the Behavior could cause the property value to end up in an
unwanted and inconsistent state. For example, in the following case:

x: myXValue
Behavior on x { NumberAnimation {} }

x could end up *not equal* to myXValue if myXValue was changed while
the Behavior was still animating but currently disabled.

Change-Id: I3826fdc3f48b2722e778638b116546db7e831e87
Reviewed-by: Martin Jones <martin.jones@jollamobile.com>

2 files changed, 28 insertions, 0 deletions

diff --git a/tests/auto/quick/qquickbehaviors/data/disabledWriteWhileRunning.qml b/tests/auto/quick/qquickbehaviors/data/disabledWriteWhileRunning.qml
new file mode 100644
index 0000000000..1ec3a923d4
--- /dev/null
+++ b/tests/auto/quick/qquickbehaviors/data/disabledWriteWhileRunning.qml
@@ -0,0 +1,14 @@
+import QtQuick 2.0
+Rectangle {
+    width: 400
+    height: 400
+    Rectangle {
+        id: rect
+        objectName: "MyRect"
+        width: 100; height: 100; color: "green"
+        Behavior on x {
+            objectName: "MyBehavior"
+            NumberAnimation { id: myAnimation; objectName: "MyAnimation"; duration: 1000; }
+        }
+    }
+}
diff --git a/tests/auto/quick/qquickbehaviors/data/disabledWriteWhileRunning2.qml b/tests/auto/quick/qquickbehaviors/data/disabledWriteWhileRunning2.qml
new file mode 100644
index 0000000000..fcd9c06de9
--- /dev/null
+++ b/tests/auto/quick/qquickbehaviors/data/disabledWriteWhileRunning2.qml
@@ -0,0 +1,14 @@
+import QtQuick 2.0
+Rectangle {
+    width: 400
+    height: 400
+    Rectangle {
+        id: rect
+        objectName: "MyRect"
+        width: 100; height: 100; color: "green"
+        Behavior on x {
+            objectName: "MyBehavior"
+            SmoothedAnimation { id: myAnimation; objectName: "MyAnimation"; duration: 1000; velocity: -1 }
+        }
+    }
+}