Merge lp:~aacid/unity8/new-scopes-image-gallery-scroll-workaround into lp:~unity-team/unity8/new-scopes

[Albert Astals Cid]

Add back the workaround for not being able scroll the image gallery

Taken from AppPreview.qml

Fixes bug #1281709

[Michał Sawicz (saviq)]

Yup.

review: Approve

=== modified file 'qml/Dash/Previews/PreviewImageGallery.qml'
--- qml/Dash/Previews/PreviewImageGallery.qml	2014-02-05 12:08:18 +0000
+++ qml/Dash/Previews/PreviewImageGallery.qml	2014-02-19 09:14:14 +0000
@@ -33,6 +33,15 @@
         cacheBuffer: width * 3
         model: root.widgetData["sources"]
 
+        // FIXME: Because of ListViews inside ListViews inside Flickables inside ListViews (and some more)
+        // we finally reached the point where this ListView doesn't correctly get swipe input any more but
+        // instead the parent ListView is the one that is swiped. This MouseArea sort of creates a blocking
+        // layer to make sure this ListView can be swiped, regardless of what's behind it.
+        MouseArea {
+            anchors.fill: parent
+            enabled: parent.contentWidth > parent.width
+        }
+
         LazyImage {
             objectName: "placeholderScreenshot"
             anchors {