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| author | Svetoslav Ganov <svetoslavganov@google.com> | 2012-10-01 16:25:08 -0700 |
|---|---|---|
| committer | Svetoslav Ganov <svetoslavganov@google.com> | 2012-10-02 12:02:05 -0700 |
| commit | 45af84a483165f06c04d74baba67f90da29c6ad2 (patch) | |
| tree | b033e50c11473892a162251c0664b847c9a2ee18 /services/java/com/android/server/accessibility/EventStreamTransformation.java | |
| parent | bfbf6e1232013a999f4776f7fdf7cf6fb577f89b (diff) | |
| download | frameworks_base-45af84a483165f06c04d74baba67f90da29c6ad2.zip frameworks_base-45af84a483165f06c04d74baba67f90da29c6ad2.tar.gz frameworks_base-45af84a483165f06c04d74baba67f90da29c6ad2.tar.bz2 | |
Touch explorer and magnifier do not work well together.
1. If tocuh exploration and screen magnification are enabled and the screen
is currently magnified, gesture detection does not work well. The reason
is because we are transforming the events if the screen is magnified before
passing them to the touch explorer to compensate for the magnification so
the user can poke what he thinks he pokes. However, when doing gesture
detection/velocity computing this compensating shrinks the gestured shape/
decreases velocity leading to poor gesture reco/incorrect velocity.
This change adds a onRawMotionEvent method in the event transformation chain
which will process the raw touch events. In this method of the touch explorer
we are passing events to the gesture recognized and the velocity tracker.
2. Velocity tracker was not cleared on transitions out of touch exploring state
which is the only one that uses velocity.
bug:7266617
Change-Id: I7887fe5f3c3bb6cfa203b7866a145c7341098a02
Diffstat (limited to 'services/java/com/android/server/accessibility/EventStreamTransformation.java')
| -rw-r--r-- | services/java/com/android/server/accessibility/EventStreamTransformation.java | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/services/java/com/android/server/accessibility/EventStreamTransformation.java b/services/java/com/android/server/accessibility/EventStreamTransformation.java index b715570..3289a15 100644 --- a/services/java/com/android/server/accessibility/EventStreamTransformation.java +++ b/services/java/com/android/server/accessibility/EventStreamTransformation.java @@ -57,12 +57,15 @@ import android.view.accessibility.AccessibilityEvent; interface EventStreamTransformation { /** - * Receives a motion event. + * Receives motion event. Passed are the event transformed by previous + * transformations and the raw event to which no transformations have + * been applied. * - * @param event The motion event. + * @param event The transformed motion event. + * @param rawEvent The raw motion event. * @param policyFlags Policy flags for the event. */ - public void onMotionEvent(MotionEvent event, int policyFlags); + public void onMotionEvent(MotionEvent event, MotionEvent rawEvent, int policyFlags); /** * Receives an accessibility event. |