EXP-1361 FIX -- Repositioning Viewer Window on mac triggers click to walk
EXP-1361 FIX -- Repositioning Viewer Window on mac triggers click to walk

* Mouse clicks outside the root view are now discarded before they can cause problems.

Reviewed by Richard

gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm