tree 7e81bc793c1ef8a5b352b2a317465ba84596c1dd
parent 90f055a04dfd49edc406d5db1c000c98bc8ef4a7
author Tony Huang <tonyychuang@google.com> 1629363434 +0800
committer Tony Huang <tonyychuang@google.com> 1629444283 +0800

Keep split bounds after configuration update

Before this change, split bounds always reset to half-half if
rotation. This is weird on large screen devices because they can
scale bounds in landscape too, so bounds will reset even if from
landscape to seascape.

Add restore mechanism by compute ration of current divider
and total length. Use this ratio to compute estimate position in
new configuration then get suitable snap target. Update divider
position and split bounds by this snap target postition.

Fix: 192533269
Test: pass existing tests
Test: Set density to large screen, active stage split and make top
      task larger then rotate to landscape.
Change-Id: I3ea12273348575ae968c76bdf9236155380526ec