MouseArea: add source property to mouse event

It comes from the source() of the QMouseEvent which triggered it.
This makes it possible to distinguish real mouse events from those
that are synthesized from touch or tablet.

And for this we need to import QtQuick 2.7

[ChangeLog][QtQuick][MouseArea] Added mouse.source property
to enable distinguishing genuine mouse events from those that
are synthesized from touch or tablet events.

Change-Id: I568964f63981703bd23e05daac5288518f09d837
Reviewed-by: Robin Burchell <robin.burchell@viroteck.net>

1 files changed, 31 insertions, 0 deletions

diff --git a/tests/auto/quick/qquickmousearea/data/ignoreBySource.qml b/tests/auto/quick/qquickmousearea/data/ignoreBySource.qml
new file mode 100644
index 0000000000..a53cbf7b1d
--- /dev/null
+++ b/tests/auto/quick/qquickmousearea/data/ignoreBySource.qml
@@ -0,0 +1,31 @@
+import QtQuick 2.7
+
+Item {
+    id: root
+    // by default you can flick via touch or tablet but not via mouse
+    property int allowedSource: Qt.MouseEventNotSynthesized
+    property int lastEventSource: -1
+    width: 200
+    height: 200
+    Flickable {
+        objectName: "flickable"
+        anchors.fill: parent
+        contentWidth: 400
+        contentHeight: 400
+        Rectangle {
+            color: ma.pressed ? "yellow" : "steelblue"
+            width: 200
+            height: 200
+        }
+    }
+    MouseArea {
+        id: ma
+        objectName: "mousearea"
+        onPressed: {
+            root.lastEventSource = mouse.source
+            if (mouse.source !== root.allowedSource)
+                mouse.accepted = false
+        }
+        anchors.fill: parent
+    }
+}