D25960: [calendar] Check out of bounds array access in QLocale lookup

[David Edmundson]

davidedmundson created this revision.
davidedmundson added a reviewer: Plasma.
Herald added a project: Frameworks.
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davidedmundson requested review of this revision.

REVISION SUMMARY
  If we have a broken locale setup we don't have any uiLanugages to look
  up the relevant locale object for.
  
  In that case use the system locale.

TEST PLAN
  Had a crash here
  
  #11 0x00007ff982aab0b2 in QList<QString>::at(int) const (this=0x7ffd50b1d928, i=0) at /opt/qt5/include/QtCore/qlist.h:571
  #12 0x00007ff982aaaa4a in Calendar::monthName() const (this=0x5640cce026f0) at /home/david/projects/kde5/src/frameworks/plasma-framework/src/declarativeimports/calendar/calendar.cpp:202
  #13 0x00007ff982aa14e9 in Calendar::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=0x5640cce026f0, _c=QMetaObject::ReadProperty, _id=9, _a=0x7ffd50b1dd40) at src/declarativeimports/calendar/calendarplugin_autogen/EWIEGA46WW/moc_calendar.cpp:340

REPOSITORY
  R242 Plasma Framework (Library)

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D25960

AFFECTED FILES
  src/declarativeimports/calendar/calendar.cpp

To: davidedmundson, #plasma
Cc: kde-frameworks-devel, LeGast00n, GB_2, michaelh, ngraham, bruns
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