D29831: Update availableScreenRect when a panel moves to another screen

[Alexander Kandaurov]

akandaurov created this revision.
akandaurov added a project: Plasma.
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REVISION SUMMARY
  When disconnecting the primary screen on a dual monitor setup and reconnecting it back, the available size of the secondary screen desktop may be reduced to the thickness of the primary screen panel, as can be seen by dragging a rubber band or trying to move some widgets. This apparently happens because the QML bindings had last been updated at the short moment when both panels were temporarily placed on the same screen. Update availableScreenRect therefore when a panel changes its screen.

REPOSITORY
  R120 Plasma Workspace

REVISION DETAIL
  https://phabricator.kde.org/D29831

AFFECTED FILES
  shell/shellcorona.cpp

To: akandaurov
Cc: plasma-devel, Orage, LeGast00n, The-Feren-OS-Dev, cblack, jraleigh, zachus, fbampaloukas, ragreen, ZrenBot, ngraham, himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, ahiemstra, mart
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