Make Flickable's wheel handling more like QAbstractScrollArea.

Vertical scrolling should only affect vertical movement, and horizontal
scrolling should only affect horizontal movement.

Task-number: QTBUG-7369
Reviewed-by: Martin Jones

2 files changed, 60 insertions, 0 deletions

diff --git a/tests/auto/declarative/qdeclarativeflickable/data/wheel.qml b/tests/auto/declarative/qdeclarativeflickable/data/wheel.qml
new file mode 100644
index 0000000..6ea81b2
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativeflickable/data/wheel.qml
@@ -0,0 +1,21 @@
+import QtQuick 1.1
+
+Rectangle {
+    width: 400
+    height: 400
+    color: "gray"
+
+    Flickable {
+        id: flick
+        objectName: "flick"
+        anchors.fill: parent
+        contentWidth: 800
+        contentHeight: 800
+
+        Rectangle {
+            width: flick.contentWidth
+            height: flick.contentHeight
+            color: "red"
+        }
+    }
+}
diff --git a/tests/auto/declarative/qdeclarativeflickable/tst_qdeclarativeflickable.cpp b/tests/auto/declarative/qdeclarativeflickable/tst_qdeclarativeflickable.cpp
index ae1e99e..f4bec8f 100644
--- a/tests/auto/declarative/qdeclarativeflickable/tst_qdeclarativeflickable.cpp
+++ b/tests/auto/declarative/qdeclarativeflickable/tst_qdeclarativeflickable.cpp
@@ -42,6 +42,7 @@
 #include <QtTest/QSignalSpy>
 #include <QtDeclarative/qdeclarativeengine.h>
 #include <QtDeclarative/qdeclarativecomponent.h>
+#include <QtDeclarative/qdeclarativeview.h>
 #include <private/qdeclarativeflickable_p.h>
 #include <private/qdeclarativevaluetype_p.h>
 #include <QtGui/qgraphicswidget.h>
@@ -74,6 +75,7 @@ private slots:
     void returnToBounds();
     void testQtQuick11Attributes();
     void testQtQuick11Attributes_data();
+    void wheel();
 
 private:
     QDeclarativeEngine engine;
@@ -373,6 +375,43 @@ void tst_qdeclarativeflickable::testQtQuick11Attributes_data()
 
 }
 
+void tst_qdeclarativeflickable::wheel()
+{
+    QDeclarativeView *canvas = new QDeclarativeView;
+    canvas->setSource(QUrl::fromLocalFile(SRCDIR "/data/wheel.qml"));
+    canvas->show();
+    canvas->setFocus();
+    QVERIFY(canvas->rootObject() != 0);
+
+    QDeclarativeFlickable *flick = canvas->rootObject()->findChild<QDeclarativeFlickable*>("flick");
+    QVERIFY(flick != 0);
+
+    QGraphicsScene *scene = canvas->scene();
+    QGraphicsSceneWheelEvent event(QEvent::GraphicsSceneWheel);
+    event.setScenePos(QPointF(200, 200));
+    event.setDelta(-120);
+    event.setOrientation(Qt::Vertical);
+    event.setAccepted(false);
+    QApplication::sendEvent(scene, &event);
+
+    QTRY_VERIFY(flick->contentY() > 0);
+    QVERIFY(flick->contentX() == 0);
+
+    flick->setContentY(0);
+    QVERIFY(flick->contentY() == 0);
+
+    event.setScenePos(QPointF(200, 200));
+    event.setDelta(-120);
+    event.setOrientation(Qt::Horizontal);
+    event.setAccepted(false);
+    QApplication::sendEvent(scene, &event);
+
+    QTRY_VERIFY(flick->contentX() > 0);
+    QVERIFY(flick->contentY() == 0);
+
+    delete canvas;
+}
+
 
 template<typename T>
 T *tst_qdeclarativeflickable::findItem(QGraphicsObject *parent, const QString &objectName)