Add drag.active property to MouseArea in qml

The drag.active property specifies if the target item is being dragged.

Task-number: QTBUG-9833
Reviewed-by: Martin Jones

2 files changed, 84 insertions, 0 deletions

diff --git a/tests/auto/declarative/qdeclarativemousearea/data/dragging.qml b/tests/auto/declarative/qdeclarativemousearea/data/dragging.qml
new file mode 100644
index 0000000..a28f049
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativemousearea/data/dragging.qml
@@ -0,0 +1,28 @@
+import Qt 4.7
+Rectangle {
+    id: whiteRect
+    width: 200
+    height: 200
+    color: "white"
+    Rectangle {
+        id: blackRect
+        objectName: "blackrect"
+        color: "black"
+        y: 50
+        x: 50
+        width: 100
+        height: 100
+        opacity: (whiteRect.width-blackRect.x+whiteRect.height-blackRect.y-199)/200
+        Text { text: blackRect.opacity}
+        MouseArea {
+            objectName: "mouseregion"
+            anchors.fill: parent
+            drag.target: blackRect
+            drag.axis: Drag.XandYAxis
+            drag.minimumX: 0
+            drag.maximumX: whiteRect.width-blackRect.width
+            drag.minimumY: 0
+            drag.maximumY: whiteRect.height-blackRect.height
+         }
+     }
+ }
diff --git a/tests/auto/declarative/qdeclarativemousearea/tst_qdeclarativemousearea.cpp b/tests/auto/declarative/qdeclarativemousearea/tst_qdeclarativemousearea.cpp
index 4a58049..eb4aa12 100644
--- a/tests/auto/declarative/qdeclarativemousearea/tst_qdeclarativemousearea.cpp
+++ b/tests/auto/declarative/qdeclarativemousearea/tst_qdeclarativemousearea.cpp
@@ -52,6 +52,7 @@ class tst_QDeclarativeMouseArea: public QObject
 private slots:
     void dragProperties();
     void resetDrag();
+    void dragging();
     void updateMouseAreaPosOnClick();
     void updateMouseAreaPosOnResize();
     void noOnClickedWithPressAndHold();
@@ -163,6 +164,61 @@ void tst_QDeclarativeMouseArea::resetDrag()
 }
 
 
+void tst_QDeclarativeMouseArea::dragging()
+{
+    QDeclarativeView *canvas = createView();
+
+    canvas->setSource(QUrl::fromLocalFile(SRCDIR "/data/dragging.qml"));
+    canvas->show();
+    canvas->setFocus();
+    QVERIFY(canvas->rootObject() != 0);
+
+    QDeclarativeMouseArea *mouseRegion = canvas->rootObject()->findChild<QDeclarativeMouseArea*>("mouseregion");
+    QDeclarativeDrag *drag = mouseRegion->drag();
+    QVERIFY(mouseRegion != 0);
+    QVERIFY(drag != 0);
+
+    // target
+    QDeclarativeItem *blackRect = canvas->rootObject()->findChild<QDeclarativeItem*>("blackrect");
+    QVERIFY(blackRect != 0);
+    QVERIFY(blackRect == drag->target());
+
+    QVERIFY(!drag->active());
+
+    QGraphicsScene *scene = canvas->scene();
+    QGraphicsSceneMouseEvent pressEvent(QEvent::GraphicsSceneMousePress);
+    pressEvent.setScenePos(QPointF(100, 100));
+    pressEvent.setButton(Qt::LeftButton);
+    pressEvent.setButtons(Qt::LeftButton);
+    QApplication::sendEvent(scene, &pressEvent);
+
+    QVERIFY(!drag->active());
+    QCOMPARE(blackRect->x(), 50.0);
+    QCOMPARE(blackRect->y(), 50.0);
+
+    QGraphicsSceneMouseEvent moveEvent(QEvent::GraphicsSceneMouseMove);
+    moveEvent.setScenePos(QPointF(110, 110));
+    moveEvent.setButton(Qt::LeftButton);
+    moveEvent.setButtons(Qt::LeftButton);
+    QApplication::sendEvent(scene, &moveEvent);
+
+    QVERIFY(drag->active());
+    QCOMPARE(blackRect->x(), 60.0);
+    QCOMPARE(blackRect->y(), 60.0);
+
+    QGraphicsSceneMouseEvent releaseEvent(QEvent::GraphicsSceneMouseRelease);
+    releaseEvent.setScenePos(QPointF(110, 110));
+    releaseEvent.setButton(Qt::LeftButton);
+    releaseEvent.setButtons(Qt::LeftButton);
+    QApplication::sendEvent(scene, &releaseEvent);
+
+    QVERIFY(!drag->active());
+    QCOMPARE(blackRect->x(), 60.0);
+    QCOMPARE(blackRect->y(), 60.0);
+
+    delete canvas;
+}
+
 QDeclarativeView *tst_QDeclarativeMouseArea::createView()
 {
     QDeclarativeView *canvas = new QDeclarativeView(0);