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This CL adds synchronization of applying of the window
container transaction with split-screen layout changes after
the display size change. This is needed for the unfold
animation to have the split screen layout ready
for the first frame of the unfold animation on foldable
devices.
The flow is similar to the display rotation synchonization,
now it is triggered on both physical display change and
rotation.
Bug: 204925795
Test: folding/unfolding, rotating with a split layout
when Shell transitions enabled/disabled
Change-Id: I30f391dae69cf38768daf49361660d87165f886d
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Window management files on the client side have normally been dumped in
either android.view or android.app package. This CL starts to
centralized them in android.window package so there is better
separation.
Test: they pass
Bug: 147406652
Bug: 152113464
Bug: 152117221
Change-Id: I4d64bd256e9b3581af0ccf9396f7dd2454132719
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This adds support for registering a single DisplayRotationController
to WMS. It gives a chance for the controller to suggest some
task changes to be executed along with a display rotation. There
is only one because it's a 2-way communication and there is only
intended to be one client for now.
This allows us to move Split and PiP presentation/layout logic out
of WM into systemui because WM no-longer needs to be the one
calculating the new bounds of everything during rotation.
This uses the windowcontainer transaction because all the
configuration changes and the display rotation need to happen
synchronously; otherwise, relayouts can occur after the display
is rotated, but before the configuration changes are applied.
When this happens, apps get incorrect bounds/insets which can
trigger erroneous lifecycle events in the app.
The flow is like this:
1. DisplayContent/Rotation freezes screen
2. DisplayRotationController is notified of a rotation and provided a
callback.
3. The Controller then evaluates/queues some task changes in
a transaction and, when done, fires the provided callback.
4. The callback applies the config change transaction and continues
the rest of the rotation synchronously.
The DisplayWindowController is sys-ui piece that serves as an
interface between system-ui components and display-related wm
logic. For now it just facilitates the rotation calculation, but
in the future it will have more general utility for display logic
like inset/bounds calculation.
Bug: 124011688
Bug: 133381284
Test: Added some wmtests and coretests.
Change-Id: If10695f44fa076725ba17746842f6fbd64da5d20
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