Also tidy up the bookkeeping for a few settings that were earlier
moved to Global without the redirect tables being fixed up.
Change-Id: I69275db3b2636cd6ba9c8c51b88e97d8ba4b7b7d
Also correct some now-misleading terminology in a permission-check
log message, and fix a bug in which a system component trying to
write to a secondary user's settings would wind up writing the
owner's settings instead.
Bug 7132405
Change-Id: I5b8fafc35720390a01652e386ab5b7c0ad751abe
(1) It's okay to write literal null as a settings element value
(2) Properly convey the user handle in the put-for-user variant
Bug 7137201
Bug 7139826
Change-Id: I0ed77d65e8377f0e0580a2668f10b7167ad34928
Quick Settings and global actions (aka longpress-Power) toggles are
included in this CL. The Settings app manipulations are updated in
a different CL because that's a different git package.
Bug 7132230
Change-Id: I50838f5e8d7b25a750d2bcae90bf384b09816dbb
We should only update the notification ticker area when
the notification is for the current user.
Bug:6924835
Change-Id: Ieaccbd8c972b3d0f62c74d29d42e0fa77ec3148c
The CursorLoader can return a null cursor if the query
failed for some reason. This may happen in certain states
where the provider is not available.
Bug: 7133411
Change-Id: Id7b383bca45a61bc8726ba9f6115cbbc07e5d0b4
The Settings.System.STAY_ON_WHILE_PLUGGED element should have been
migrated to the global table, but wasn't. This CL does a couple of
things around dealing with this:
(1) Tidies up the migration tables outright, so that they correctly
reflect the intended final state
(2) Introduces the option of doing a key migration only if the element
has not yet been moved to the new table, to allow for safe retry-
-with-ignore. This will make it easy to make any future alterations
to the global vs per-user association of individual elements
(3) Migrates the STAY_ON_WHILE_PLUGGED element if it hasn't been already.
Bug 7126575
Change-Id: Ic5fa9ba45f11b09270bd5bc94c26fbbd84abc749
This change is the initial check in of the screen magnification
feature. This feature enables magnification of the screen via
global gestures (assuming it has been enabled from settings)
to allow a low vision user to efficiently use an Android device.
Interaction model:
1. Triple tap toggles permanent screen magnification which is magnifying
the area around the location of the triple tap. One can think of the
location of the triple tap as the center of the magnified viewport.
For example, a triple tap when not magnified would magnify the screen
and leave it in a magnified state. A triple tapping when magnified would
clear magnification and leave the screen in a not magnified state.
2. Triple tap and hold would magnify the screen if not magnified and enable
viewport dragging mode until the finger goes up. One can think of this
mode as a way to move the magnified viewport since the area around the
moving finger will be magnified to fit the screen. For example, if the
screen was not magnified and the user triple taps and holds the screen
would magnify and the viewport will follow the user's finger. When the
finger goes up the screen will clear zoom out. If the same user interaction
is performed when the screen is magnified, the viewport movement will
be the same but when the finger goes up the screen will stay magnified.
In other words, the initial magnified state is sticky.
3. Pinching with any number of additional fingers when viewport dragging
is enabled, i.e. the user triple tapped and holds, would adjust the
magnification scale which will become the current default magnification
scale. The next time the user magnifies the same magnification scale
would be used.
4. When in a permanent magnified state the user can use two or more fingers
to pan the viewport. Note that in this mode the content is panned as
opposed to the viewport dragging mode in which the viewport is moved.
5. When in a permanent magnified state the user can use three or more
fingers to change the magnification scale which will become the current
default magnification scale. The next time the user magnifies the same
magnification scale would be used.
6. The magnification scale will be persisted in settings and in the cloud.
Note: Since two fingers are used to pan the content in a permanently magnified
state no other two finger gestures in touch exploration or applications
will work unless the uses zooms out to normal state where all gestures
works as expected. This is an intentional tradeoff to allow efficient
panning since in a permanently magnified state this would be the dominant
action to be performed.
Design:
1. The window manager exposes APIs for setting accessibility transformation
which is a scale and offsets for X and Y axis. The window manager queries
the window policy for which windows will not be magnified. For example,
the IME windows and the navigation bar are not magnified including windows
that are attached to them.
2. The accessibility features such a screen magnification and touch
exploration are now impemented as a sequence of transformations on the
event stream. The accessibility manager service may request each
of these features or both. The behavior of the features is not changed
based on the fact that another one is enabled.
3. The screen magnifier keeps a viewport of the content that is magnified
which is surrounded by a glow in a magnified state. Interactions outside
of the viewport are delegated directly to the application without
interpretation. For example, a triple tap on the letter 'a' of the IME
would type three letters instead of toggling magnified state. The viewport
is updated on screen rotation and on window transitions. For example,
when the IME pops up the viewport shrinks.
4. The glow around the viewport is implemented as a special type of window
that does not take input focus, cannot be touched, is laid out in the
screen coordiates with width and height matching these of the screen.
When the magnified region changes the root view of the window draws the
hightlight but the size of the window does not change - unless a rotation
happens. All changes in the viewport size or showing or hiding it are
animated.
5. The viewport is encapsulated in a class that knows how to show,
hide, and resize the viewport - potentially animating that.
This class uses the new animation framework for animations.
6. The magnification is handled by a magnification controller that
keeps track of the current trnasformation to be applied to the screen
content and the desired such. If these two are not the same it is
responsibility of the magnification controller to reconcile them by
potentially animating the transition from one to the other.
7. A dipslay content observer wathces for winodw transitions, screen
rotations, and when a rectange on the screen has been reqeusted. This
class is responsible for handling interesting state changes such
as changing the viewport bounds on IME pop up or screen rotation,
panning the content to make a requested rectangle visible on the
screen, etc.
8. To implement viewport updates the window manger was updated with APIs
to watch for window transitions and when a rectangle has been requested
on the screen. These APIs are protected by a signature level permission.
Also a parcelable and poolable window info class has been added with
APIs for getting the window info given the window token. This enables
getting some useful information about a window. There APIs are also
signature protected.
bug:6795382
Change-Id: Iec93da8bf6376beebbd4f5167ab7723dc7d9bd00
Each user has its own Settings.System.* and Settings.Secure.* namespace now. In
addition, this CL introduces the new Settings.Global.* namespace, which contains
a number of previously-elsewhere named settings entities; these Global.* entities
are common to all users. Because these elements have been moved from their prior
existence in the other namespaces, attempts to access them under their old names
and namespaces are detected and redirected (with appropriate compile-time and
logging messages) to their new homes.
The new Global.* namespace can only be written by system-level code, just like
the existing Secure.* namespace. If an app attempts to write a key that was
previously in the System.* namespace but has been moved to the Global.* namespace,
then a warning is logged and no write is performed; the action is a no-op. (The
app is explicitly not crashed, to avoid breaking well-behaved apps that can't
know any better.)
There is also now a hidden API for getting/setting settings entities associated
with a user other than the caller's. Reading/writing data for a user other than
yourself requires the signature-level INTERACT_ACROSS_USERS_FULL permission.
Manipulating data for a different user cannot be done via the ContentProvider
query() / insert() APIs; you must use the Settings.get/put APIs for that degree
of control. In general, use of the get/set API is *strongly* preferred over
query-type access to Settings.
Bug 6985398
Change-Id: Ibee54ddff99fb847c8c2479c23b50f1e7524d724
