Once upon a time when the world was fresh and new, the heavens
had an easy rhythm. Day and night. Night and day. In the day,
the pixel fairies would cavort and play in the bright gardens
with narry a mark of shadow or gloom. In the night, they would
rest peacefully, dreaming no dreams and knowing no fear.
Then one night a fairy dreamed the first dream. At first
the dream was peaceful, full of colors and delight, hopes and
memories. Then all at once, jarringly, it awoke in bright
daylight. The pixel fairy knew fear, for the world had changed
and it was unprepared.
Time passed and the pixel fairies grew accustomed to their
fate, day and night, night and day, sometimes dreaming, until
there came a night when a fairy did not sleep. It roamed
the land in a dreamless doze, lost and afraid amid a grim haze
of grey and darkness. The fairy despaired. It wanted no
part of this place. It pretended for a time to be awake but
the bright daylight would not come. It pretended for a time to
be dreaming but the colors and memories would not come.
That is when the fairy wished for oblivion. Then just as
suddenly, it awoke in the daylight. It fell to the ground,
stunned as if it had forgotten how to walk in the too bright
daylight.
Though the world again grew softer and kinder in time, the pixel
fairies were never the same. For the night is dark and full
of terrors.
---
It used to be easy. Screen on and screen off could explain almost
everything about the state of the device but it's different now with
ambient display. We need to be able to wait for all windows to be
drawn even in the case where the device is still nominally asleep.
In truth, the window manager policy which drives a lot of these
interactions is a thicket of outdated assumptions.
Added a new method to tell the window manager policy when the screen
is being turned off so that it can correctly account for changes
to the interactive state (wakeUp and goingToSleep) and screen state
(screenTurningOn and screenTurnedOff). Now we can independently
poke keyguard during interactive state changes and we can apply
screen on blocking during screen state changes.
Moved the code which manages screen on blocking (which is what
ensures the UI has fully drawn before revealing screen contents)
from the power manager to the display manager since the display
manager is in a better position to accurately track the state of
the screen, particularly when the screen is being turned off.
Fixed a bunch of synchronization issues. Previously some work
had been moved to a handler without considering what might
happen if it became reordered relative to other work happening
elsewhere. Documented the desired behavior in the code to
prevent this from happening again.
There's still a bunch of stuff in here that isn't quite right,
particularly the assumption that there's only one screen, but
it's good enough for now. Hopefully there aren't too many bugs.
Bug: 17605802
Change-Id: Ic7319e09948c8a3cda014d7e169c964a3ad86f14
Bug: 16978006
Don't HWUI-accelerate KeyguardScrim
Aggressively trim memory as soon as a ViewRootImpl
dies or has its visibility changed.
Change-Id: Ie1b7c9d30653456bd2e9f309128174f972999368
This allows us to ensure windows are fully drawn before unblocking
screen on while dozing.
Bug: 17516245
Change-Id: Ibe63c212b8db855ce26a34a8169f33764b266ee6
Bug: 17516789
This change corresponds to a sudden influx of bad surface crashes.
Reverting to see if stability returns as this was an optimization
CL
This reverts commit 29ff1bc57ac2c995c56f15ed6e56e5fb247b2a44.
Change-Id: I7835e89017161d94ad05fe46d81bd437c3dae3a7
This was a result of using the wrong systemUiVisibility listener.
Instead, DecorView now follows the structure in ActionBarOverlayLayout,
where we use onWindowSystemUiVisibilityChanged for everything.
Bug: 17494017
Change-Id: I1be9165c5ff80021f3a7889d3811cf0c54f68e71
Fixes two bugs introduced by change
I7bd32531130d199c0734ffcb800194e77b7e16c3:
When the system window insets consumed by DecorView
change as a result of changing flags, the insets must
be redispatched to the hierarchy.
Also fixes a bug where, as a result of removing the wrong
implication of the SYSTEM_UI_FLAG_LAYOUT_STABLE flag by
FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS, the status bar was
being forced to black when returning from recents.
Bug: 17489047
Bug: 15046646
Change-Id: I127b0ff3b17c4873a7c28d67020f84298ed09db2
In the past it's been a recommended approach to avoiding overdraw for
apps to set their window background to null at runtime if their
content view fully covers their window surface. The problem with this
is the IME.
The IME can force a resize of the window at unexpected times and
unless an app has been configured to fit system windows and manually
cover the padded area that the IME window covers, the asynchronous
nature of the IME-show process can leave surface buffer garbage
visible to the user. In previous platform versions this wasn't an
issue since pre-renderthread we would always animate a crossfade from
the closed to open state. This animation was always a bit of a hack
since it could break the contract of requestLayout/invalidate on the
view hierarchy - it could result in a draw happening into the saved
"before" state of the crossfade before a pending layout.
Now that this has been cleaned up the buffer garbage is sometimes
visible.
To prevent this, PhoneWindow now detects the state of a null window
background and draws solid rects into the area not covered by a
window's content. Which color is determined by the window context's
theme, though this is not a public API available to apps.
Bug 17006497
Change-Id: I714439a1608c4ae135f3d9d49bb165330d9fbe9f
500 msec is apparently not enough time to push the pixels around on
a Volantis (or Manta, or occasionally Deb). Increasing the timeout
eliminates turning the screen on before the surface is completely
drawn.
Optimizing the drawing path so that we can return the timeout to
500ms has been filed as b/17496306.
Fixes bug 16849724.
Change-Id: Ic0fca68bc41caa67dba973b5c40915756dc4730f
- Changing package from android.telecomm to android.telecom
- Changing package from com.android.telecomm to
com.android.server.telecomm.
- Renaming TelecommManager to TelecomManager.
Bug: 17364651
Change-Id: I192cb5d189f55db012ea72ee82ccc5aedbc21638
* commit 'a7027783e39e4da9ef6cc66a200746ffb81e720e':
Show all windows from activity that hides keyguard
Make sure FLAG_DISMISS_KEYGUARD brings up bouncer
Popup windows from the activity hiding the keyguard weren't being
shown. This change retrieves that activity from PhoneWindowManager
and applies the show or hide call to the windows that match the
activity.
Fixes bug 16479813.
Change-Id: Ia6fe97240aec85c5233eee9038138f7d48095a6e
