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1. The screen magnification feature was implemented entirely as a part of the accessibility
manager. To achieve that the window manager had to implement a bunch of hooks for an
external client to observe its internal state. This was problematic since it dilutes
the window manager interface and allows code that is deeply coupled with the window
manager to reside outside of it. Also the observer callbacks were IPCs which cannot
be called with the window manager's lock held. To avoid that the window manager had
to post messages requesting notification of interested parties which makes the code
consuming the callbacks to run asynchronously of the window manager. This causes timing
issues and adds unnecessary complexity.
Now the magnification logic is split in two halves. The first half that is responsible
to track the magnified portion of the screen and serve as a policy which windows can be
magnified and it is a part of the window manager. This part exposes higher level APIs
allowing interested parties with the right permissions to control the magnification
of a given display. The APIs also allow a client to be registered for callbacks on
interesting changes such as resize of the magnified region, etc. This part servers
as a mediator between magnification controllers and the window manager.
The second half is a controller that is responsible to drive the magnification
state based on touch interactions. It also presents a highlight when magnified to
suggest the magnified potion of the screen. The controller is responsible for auto
zooming out in case the user context changes - rotation, new actitivity. The controller
also auto pans if a dialog appears and it does not interesect the magnified frame.
bug:7410464
2. By design screen magnification and touch exploration work separately and together. If
magnification is enabled the user sees a larger version of the widgets and a sub section
of the screen content. Accessibility services use the introspection APIs to "see" what
is on the screen so they can speak it, navigate to the next item in response to a
gesture, etc. Hence, the information returned to accessibility services has to reflect
what a sighted user would see on the screen. Therefore, if the screen is magnified
we need to adjust the bounds and position of the infos describing views in a magnified
window such that the info bounds are equivalent to what the user sees.
To improve performance we keep accessibility node info caches in the client process.
However, when magnification state changes we have to clear these caches since the
bounds of the cached infos no longer reflect the screen content which just got smaller
or larger.
This patch propagates not only the window scale as before but also the X/Y pan and the
bounds of the magnified portion of the screen to the introspected app. This information
is used to adjust the bounds of the node infos coming from this window such that the
reported bounds are the same as the user sees not as the app thinks they are. Note that
if magnification is enabled we zoom the content and pan it along the X and Y axis. Also
recomputed is the isVisibleToUser property of the reported info since in a magnified
state the user sees a subset of the window content and the views not in the magnified
viewport should be reported as not visible to the user.
bug:7344059
Change-Id: I6f7832c7a6a65c5368b390eb1f1518d0c7afd7d2
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* commit 'e659cea645c55fb6ecc744881e288007d53fc9a2':
Cache resource ID lookups in aapt
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This speeds up certain workloads considerably, particularly
those involved in buildling apps via the SDK. Windows-based
use should particularly benefit from the change.
Change-Id: I29f4b3a77400b201ee219729cc28a5e359c0c5e8
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kick keyguard to show the assistant" into jb-mr1-lockscreen-dev
* commit '061b4fae3daf40c90b46e16b12e7f22142eb498c':
Add mechanism to kick keyguard to show the assistant
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to show the assistant" into jb-mr1-lockscreen-dev
* commit 'a2bf6181dfca0f93461fc041f2bd2444551a4515':
Add mechanism to kick keyguard to show the assistant
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assistant" into jb-mr1-lockscreen-dev
* commit '2c29deaa2650091d9206b8fa93f8a447ee247d52':
Add mechanism to kick keyguard to show the assistant
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Fixes bug 7499778
Change-Id: Ic9ea514feb489feeee6716f40bdb9792842f9515
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isSafeModeEnabled() API to WindowManagerService" into jb-mr1-lockscreen-dev
* commit 'bef827572ce9644253ea42ab91b11b8107d2300f':
Add isSafeModeEnabled() API to WindowManagerService
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WindowManagerService" into jb-mr1-lockscreen-dev
* commit 'c7dc250d5a3dab93ff87e9986a71ae58ff124399':
Add isSafeModeEnabled() API to WindowManagerService
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WindowManagerService" into jb-mr1-lockscreen-dev
* commit 'fe7e94a094746b608eb926fadc3ee1446bbb0d58':
Add isSafeModeEnabled() API to WindowManagerService
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This adds a means of determining when the device is in safe mode,
as required by keyguard to disabled some features.
Change-Id: I31d357e6738c92e1837f9e0263e5f3f4de66315a
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* commit '58ed5d748c0b9b64845975ef5844ad313de7c3f6':
Correct executable bit for source files
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* commit '768d9e1a72ceee7d4a5f608776b87b62d6ce4a04':
Correct executable bit for source files
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Many media files and source code files were marked as executable in Git.
Remove those.
Also a shell script and python script were not marked as executable.
Change-Id: Ieb51bafb46c895a21d2e83696f5a901ba752b2c5
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* commit 'fb34490f4dca7aac623fb9a80fe9a2371107a786':
Fix writing text version of styleable IDs.
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Change-Id: I3f2614689a597de3fd46628c020cf649a808c82f
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This adds an annotation to methods in AIDL of the form
"void myMethod() = 3;" to explicitly set the onTransact
id for the method. Either all methods must have explicitly
annotated id's or none of them should be explicitly annotated.
There is error checking in the AIDL compiler
for duplicate id's and id's outside of the valid range.
Bug: 7353910
Change-Id: I868045e3f112c9a279c573cea368a621116cbf77
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as possible." into jb-mr1-dev
* commit '26d76606aff48680fc61f9decaeddff3a568ca58':
Layoutlib: Read and close XML files as soon as possible.
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possible." into jb-mr1-dev
* commit 'd8149b03a8676a49f6ca500eecafe79fadf046a7':
Layoutlib: Read and close XML files as soon as possible.
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Because passing an InputStream to KXML does not close the
stream after the file has been parsed, the files are staying
locked on windows until the gc and finalizers are run.
This change preload the XML files and close their stream,
and then pass the content in a stream to the parser.
Change-Id: Iabe27989dc616ec9e7de88e52b1ec3af9f007f7c
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* commit '441f0672ed65feead06c4a05d7e6bf894ab2a982':
Update layoutlib for jb mr1.
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* commit '9c474738a29f77359a461035855d6e9b3935ade1':
Update layoutlib for jb mr1.
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Status bar displayed on all devices.
Update logic for displaying nav bar to whether or not
device has soft button.
Update navigation buttons to new look.
Remove battery and signal from navigation bar.
Change-Id: I8241d71269a17126218a3062ba727e379a8e6c25
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jb-mr1-dev
* commit '136bd7c6aef8767dc208811ad87f90956333e78f':
Fix SDK layout rendering in Eclipse.
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* commit '477687c1eb1919c54e2bffba2a740df3b4af6668':
Fix SDK layout rendering in Eclipse.
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Change-Id: I0e9e85632012c0929b987ee9d0ccf7c25eece322
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Activities." into jb-mr1-dev
* commit '8ee7ac22e6aec5df5405a3e2130d593c50bc39b2':
Adds showWhenLocked attribute to Activities.
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jb-mr1-dev
* commit '33877e15b8bfc50bd874027689a4794aa93b923d':
Adds showWhenLocked attribute to Activities.
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The new attribute allows an Activity such as the alarm to appear
on all users screens.
Bug: 7213805 fixed.
Change-Id: If7866b13d88c04af07debc69e0e875d0adc6050a
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manager." into jb-mr1-dev
* commit '513b8ea16fdedd7b6debd718798c0220edd61d7f':
Coordinate screen on with the window manager.
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jb-mr1-dev
* commit '3f1246a29b58cf78ebe674ec0905ad1795027aac':
Coordinate screen on with the window manager.
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Bug: 7267457
Change-Id: Ic2c322253639e1f0b2e4e72a7b145025d0240f93
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user switcher (issue 7175023)" into jb-mr1-dev
* commit 'a39c5c369af24cc25f77b9ac97dfffae41c73eb6':
Plumbing to allow keyguard to be shown with user switcher (issue 7175023)
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switcher (issue 7175023)" into jb-mr1-dev
* commit '327424d69b99213e872e91f05feba2d0a137d6c7':
Plumbing to allow keyguard to be shown with user switcher (issue 7175023)
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-> Also reduced calls to lockNow, and moved this call in ActivityManagerService
Change-Id: I9ba34ca902f7c0f71fa4ec302104688ca8d11f55
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jb-mr1-dev
* commit 'cd09cb8fb79442aa22018db9134ef1ef22059360':
Fix issue #7267494, issue #7212347
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* commit '6fb7fd3a0939413d8968fc0d404ed499d7f7dc52':
Fix issue #7267494, issue #7212347
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7267494 Calendar is not syncing
Check for whether a content provider is dead before returning
it. This is kind-of a band-aid, but probably the right thing
to do; I'm just not sure exactly the full details of why this
problem is happening. Hopefully this "fixes" it, though I don't
have a way to repro to tell.
7212347 System power off dialog is only visible to user 0
Make it visible. Also turn on some battery debugging stuff and
clean it up so we can just keep it.
Change-Id: I5add25bf2a763c8dfe1df23bc5c753a9ea5d157a
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into jb-mr1-dev
* commit 'cd781ce2ebc104cf83d630889ae330a980635c9e':
New internal API to eliminate poke locks.
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* commit 'cb6f950f15919794d26a55c20090fe5dacd11e4a':
New internal API to eliminate poke locks.
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Added a new WindowManager.LayoutParams inputFeatures flag
to disable automatic user activity behavior when an input
event is sent to a window.
Added a new WindowManager.LayoutParams field userActivityTimeout.
Bug: 7165399
Change-Id: I204eafa37ef26aacc2c52a1ba1ecce1eebb0e0d9
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jb-mr1-dev
* commit '5d359a92658d01b0220f77eb294d6124848739bc':
Remove clearUserActivityTimeout().
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* commit '5e3dcf7210bed65d8f9aec40d9da078daf76dead':
Remove clearUserActivityTimeout().
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This function is not implemented and not needed.
Bug: 7165399
Change-Id: Ib1c50fabad6292ccf670404ba70aeb1242c4614d
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* commit '489c1e9f82250770004ec9080778546b040f6146':
Get rid of preventScreenOn().
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* commit '7f813202cb08a829b59e17be749ffee4a2f482b8':
Get rid of preventScreenOn().
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Bug: 7165399
Change-Id: I1968265ecd74fff4d85efd2ca03b1983425ea518
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* commit '0c9bbf4e13f2be6a4b930da2379c77e06a68c2cb':
Make DreamManagerService more robust.
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