As discussed in bug 332003, there are circumstances when thumbnail data is simply not available to the WindowThumbnail component. It would be nice if the component had a property or invokable to explicitly communicate this event to users, so visualizations can react appropriately, e.g. by hiding or replacing the thumbnail component. Reproducible: Always
Assigning to Martin.
Git commit ce1ba8a6879114b35632f4f0aff4982a2b7ab719 by Kai Uwe Broulik. Committed on 03/11/2014 at 09:11. Pushed by broulik into branch 'master'. Add thumbnailAvailable property to PlasmaCore.WindowThumbnail This property tells us whether a thumbnail is actually being rendered or it has fallen back to the window icon REVIEW: 120946 M +16 -0 src/declarativeimports/core/windowthumbnail.cpp M +6 -0 src/declarativeimports/core/windowthumbnail.h http://commits.kde.org/plasma-framework/ce1ba8a6879114b35632f4f0aff4982a2b7ab719