Merge lp:~aacid/qtmir/dont_reuse_stale_cookies into lp:qtmir

[Albert Astals Cid]

EventInfo::store: Store an empty cookie for mir events without cookie

Otherwise when the m_eventInfoVector ringbuffer wraps we end up returning a stale cookie for events that had no cookie (e.g. mouse move events)

 * Are there any related MPs required for this MP to build/function as expected?
No

 * Did you perform an exploratory manual test run of your code change and any related functionality?
Yes

 * If you changed the packaging (debian), did you subscribe the ubuntu-unity team to this MP?
N/A

[Gerry Boland (gerboland)]

Yes, makes sense.

review: Approve

[Andreas Pokorny (andreas-pokorny)]

oh yes..

mea culpa.

review: Approve

=== modified file 'src/platforms/mirserver/eventbuilder.cpp'
--- src/platforms/mirserver/eventbuilder.cpp	2017-03-03 10:39:24 +0000
+++ src/platforms/mirserver/eventbuilder.cpp	2017-03-30 09:09:20 +0000
@@ -293,6 +293,8 @@
         cookie.resize(mir_cookie_buffer_size(cookie_ptr));
         mir_cookie_to_buffer(cookie_ptr, cookie.data(), cookie.size());
         mir_cookie_release(cookie_ptr);
+    } else {
+        cookie.resize(0);
     }
     if (mir_input_event_type_pointer == mir_input_event_get_type(iev))
     {