Previously, mMainResearchLog and mMainLogBuffer were set up
when the user moved to a new TextView, and set to null when
the user left the TextView.  This change causes
mMainResearchLog, mMainLogBuffer, mFeedbackLog, and
mFeedbackLogBuffer to be non-null forever after init() is
called.  start() no longer sets up these fields; instead
they are cleared and reset every time stop() is called.
Checks for null values are now removed.

The earlier code just didn't initialize these variables if
the user disabled logging, but since the new version
invariantly keeps these variables valid, we add a check for
whether the user has enabled logging in publishLogUnits().

Change-Id: Ifde3517f1cf924cfa33cda95fec24529b52b3c08

LogUnits have been annotated with the autocorrected words, but
until now this was assumed to be a single word without spaces.
But spaceless typing can result in spaces in the LogUnit label.  With this
change, the LogUnit inspects the autocorrected text to determine how many
words were inserted, and counts them accurately.

This change corrects a privacy problem, which was that if the word sampling
algorithm chose a LogUnit that actually contained multiple words, then more
than two successive words would be included in the log.

Change-Id: I7c01c3dd3ac33d7e96c00836256bae9c14b124ed

Previously only a commitText would cause a LogUnit to be
labeled with the word that the data generates.  In the case
of gestured text, this information is available when
LatinIME#onEndBatchInput is called. Labeling the LogUnit
at this time means that the Log will have labeled words even
if stop() is called before commit.

Change-Id: Idb2f99a9c159a1b1aa00448a2ecddeca6c351c3e

Change-Id: I8a091fb63dab12a0d2ba69e2fe393249bc68d103

Change-Id: Ia36660c66504ba2fbb7f125704926a08726df87a

Framework change perhaps?  Even if not, this makes it more visible

Change-Id: Ib6d36b5a30136c4516adac666bdff36d1cd9b337

System is fast enough that sometimes SystemClock.currentTimeMillis() is duplicated
when used to make a unique filename.

Change-Id: I9454fbb5e10265d36b8e17cba183a1591d52cc7b

This uses the old suggestions. It does not try to recompute
new suggestions if there are no old suggestions yet: this is
coming in a later change.
If there are no suggestions, this shows the word itself
as a suggestion.

Bug: 8084810
Change-Id: I4c2e25df0ff3673be1825f57a0c19a9d23d47a48

Calls to LatinIME#onStartInputViewInternal log important information
about the context in which an IME is used.  This is reported as a
single LogStatement.  Previously, this was not placed into a separate
LogUnit, and was mixed in with general word data.  This change wraps
this LogStatement in its own LogUnit.

Change-Id: I0fecd41c8a1de622a764cc4b5d6902336697046c

The ResearchLogger reports whether a build is a release build or not
to avoid polluting data with IME debugging work by developers.
Previously this was done by checking a constant flag, which was also
serving the dual purpose of masking out debug code in release builds.

This change introduces a heuristic to determine whether a build was
created by a developer (using the package versionName), and annotating
the data sent to the server appropriately.

Change-Id: Icbad17c66b703cabf6d23d05e2c7c41bcceaae45

Previously logging was disabled during replay.  This makes it impossible to use logged data as a
regression test, since the new log was unavailable.  This change corrects this problem.

Change-Id: I19dc31def2f2f87fd219dc561c739d18e4ab9c9c

Initialize FeedbackLog earlier to avoid NPE

Change-Id: I646944c68a7d092345def16060b2a4edd8c7dbef

Previously an autocorrection caused a new LogUnit to be started,
splitting off the previous LogUnit right at the autocorrection method
time.  This change causes the split to happen before the MotionEvents
that led to the autocorrection being called.

Change-Id: I2504df8eb47ee77e5f46bac34a8450636c03fd9f

- Move scheduling logic from ResearchLogger.java to
  UploaderService.java
- Switch to a one-shot timer.  Previously the uploader was scheduled
  on an inexact repeating schedule.  It's better to reschedule the
  next upload after the current one is finished to reduce the chances
  of multiple uploads happening at the same time.
- Avoid double-execution
    - Previously a scheduled upload might run right after an explicit
      one if they occured at the same time.  This change reduces the
      chances of this.
- Some method extraction and naming

Change-Id: I9efda11be77d334c7f61bd40a36d65f0421ebde4

Previously, ResearchLogger#stop() was called both in
LatinIME#onFinishInputView() and in LatinIME#onWindowHidden().  This
resulted in multiple logs being written.

Since onFinishInputView is the more reliable of the two (it is called
in InputMethodService#onDestroy; onWindowHidden is not), the code now
uses onFinishInputView as a stopping signal.

Change-Id: Iae4b8c3bdab226027624eeab19b3737367e4a108

bug: 8393568
Change-Id: Ie5edf44a3627aca9416145aff56bf05bbf2a05f3

Previously used a monotonically increasing int.  Now uses uuid and nanoseconds.

squashed in:
    [FileEncap11] Read preference from ResearchSettings
    Change-Id: Ic779e0a69db6b16e92c6f4b63dbe7b7add566ab6

    [FileEncap12] Simplify directory cleanup invocation
    Change-Id: I688047409c0343d32b11447fb625dfb726c731ec

    [FileEncap14] Change log filename syntax
    Change-Id: I9243b20b2eb392f81ab8c5c3d19315211240e0bc

Change-Id: I5c9d70e0cb7b0965158e17dd71dfab796bd9a440

Change-Id: I4daec20b7b47b0d71c5aab6e17cd660015e19e71

Change-Id: I2ded3d0a29610941fac27c9b26168dd6c06ceccc

This change is based on an earlier one that got stuck in Gerrit: Iab77504b

Change-Id: I27ad9dfb1bbb2300bd1e61d881a6ea0e116db066

- Make ResearchSetting for whether the user has seen the splash screen
- Inline #setLoggingAllowed, which is short and is now only called by
  onUserLoggingConsent

Change-Id: Icdf4592777b80643807b6ccf1d3896459c503e02

- Refer to a common default value in DebugSettings
- Make PREF_USABILITY_STUDY_MODE independent of the ResearchLogger
- ResearchLogger uses its own preference through ResearchSettings

multi-project commit with Ie0df836c9d779eba484b522666ec357f4e234823

Change-Id: I88547a2f619db6e7364abbbec12f9f76855dd11a

multi-project commit with Ia98b1406fc2ee11a96893c77ea58d800fece7624

Change-Id: I8bc3d07b83dbe7d8fc56a618de07dade7f510b13

Change-Id: I8157249259cf8c3218c5c82a5729f4cbc1fb4eeb

Change-Id: I902a6a40df1c672c611672f34d2f3237b0d1821b

Change-Id: I1a4d1e7bc45fc30cb1b63ea6020f0eee6e804333

Change-Id: I6d84f490922cd1f40e44ca4f95c9d950fba38290

Change-Id: I7b9ed800552f2fd546ed21e9dc06ea1ff5798337

Change-Id: Ied55b6a6f1e64bbca558316d8d3d207d7655cf91

Change-Id: Iaaffc71378154240538bf90f0b85c3f17f3f78b3

The method in LogUnit for publishing a LogStatement to a JsonWriter doesn't
depend on anything in the LogUnit.

multi-project commit with Id1d6ff4851148bba0e6b5a1ec6eec2b842d9c707

Change-Id: I323cec239d6ea1cee602c2ecf9b13713791e9283

The feedback string is used as a channel name in internal builds.  Add a flag
that lets it be saved between calls to make it easier to generate test data.

Change-Id: I5c6149b1e68239cd968b6852d03cc240ddde99ca

Now applies yellow bars if recording, green bars if replaying.

Change-Id: I39d39de6254fd57107ea5355c43b154244520985

Change-Id: Iae04115921aaf6bbc3c6ad6e7d2d0e7401af41f8

- Start with just a smoke test.
- Sets up a private SharedPreferences

multi-project commit with I81cceba23692d64c2ea58a46351fc36d118ff825

Change-Id: I96e02d9a8de70cb5c03fd7411b886903e7a83673

multi-project commit with Ia2dd81afb4ea124094a20a39e31ffd193edff3d2

Change-Id: I80fe8f2ce137fedf48038955d5f3d9deed04f763

Change-Id: I1983095058d004476065328ad34bb9e325af7062

- Also, internal flag for automatically replaying after a recording is made (off by default)
- RLog key to "Bug?"

multi-project commit with I0c2fababd73eed5a341af487bca04ddd650d4cc2

Change-Id: I162c96a715de7180f276e08b4686a20f29dabafb

- Add support for replaying log files to the ResearchLogger.  This will let
  users preview data that they choose to upload.
- When the user explicitly requests that the system record their action, it
  will record everything up to, and including, the motion involved in shutting
  off the recording.  This change also removes the stop-recording motion
  commands.

Change-Id: Ib1df383bbf1881512cb111fab9f6749c25e436ba

Heuristic to determine whether a word was a typo correction or a complete
replacement by examining a correction to see if it falls within the list of
suggested words of the original.

Change-Id: Ieec4861a811e96aef0d14622e662b589ef8b4772