23df3a3cd3c301533b25e074c509262610c2f7d1 - platform/frameworks/base

commit	23df3a3cd3c301533b25e074c509262610c2f7d1	[log] [tgz]
author	Adrian Roos <roosa@google.com>	Thu Mar 15 15:41:13 2018 +0100
committer	Adrian Roos <roosa@google.com>	Mon Mar 19 16:01:38 2018 +0100
tree	df90bbf1bb02b1b86771b57c0d1dc6c27d6125b1
parent	31ac587b432eb7eabe9dd5fd7b75a3abfa4d6118 [diff]

Letterboxing: ensure bar contrast

Ensures that any bars that draw over a letterbox draw their own
background such that they always have contrast.

This fixes an issue, where if a light status / navigation bar app was
letterboxed, the bar would still draw dark icons over the now black
letterbox, making the icons unreadable.

To do so, splits the letterbox into a layout and an apply surface
changes phase.

Change-Id: Ia8afa3386d75d9a72434d701b867c3ebc35cc36f
Fixes: 72696928
Test: Open a letterboxed app with a white navigation bar, verify it is visible
Test: ApiDemos > App > Activity > Max Aspect Ratio > 1:1, verify navbar is visible

services/core/java/com/android/server/policy/BarController.java[diff]
services/core/java/com/android/server/policy/PhoneWindowManager.java[diff]
services/core/java/com/android/server/policy/WindowManagerPolicy.java[diff]
services/core/java/com/android/server/wm/AppWindowToken.java[diff]
services/core/java/com/android/server/wm/DisplayContent.java[diff]
services/core/java/com/android/server/wm/Letterbox.java[diff]
services/core/java/com/android/server/wm/WindowState.java[diff]

7 files changed

tree: df90bbf1bb02b1b86771b57c0d1dc6c27d6125b1