5 Commits

Author SHA1 Message Date
Jeff Brown
fbf0977321 Support non-rectangular input regions.
This enables the system bar to carve out a region through which
events will be sent to the IME behind it.

Bug: 3238092
Change-Id: I69b855a8d9b5b3ee525266c0861826e53e5b5028
2011-01-16 18:58:49 -08:00
Jeff Brown
928e054931 Prevent events from getting backlogged.
This change implements two heuristics.

1. When events are older than 10 seconds, they are dropped.

2. If the application is currently busy processing an event and
   the user touches a window belonging to a different application
   then we drop the currently queued events so the other application
   can start processing the gesture immediately.

Note that the system takes care of synthesizing cancelation events
automatically for any events that it drops.

Added some new handle types to allow the native dispatcher to
indirectly refer to the WindowManager's window state and app window
token.  This was done to enable the dispatcher to identify the
application to which each window belongs but it also eliminates
some lookup tables and linear searches through the window list
on each key press.

Bug: 3224911
Change-Id: I9dae8dfe23d195d76865f97011fe2f1d351e2940
2011-01-10 17:23:05 -08:00
Jeff Brown
519e024d1e Make input dispatcher only ANR for foreground windows.
Redesigned the input dispatcher's ANR timeout mechanism so it is much
closer to Froyo's policy.  ANR is only ever signalled if the dispatcher
is waiting on a window to finish processing its previous event(s) and
there is new pending input.

In the old code, we tracked the dispatch timeout separately for each
input channel.  This was somewhat complicated and also resulted in the
situation where applications could ANR long after the user had pushed
them into the background.

Change-Id: I666ecada0952d4b95f1d67b9f733842b745c7f4b
2010-09-15 18:52:08 -07:00
Jeff Brown
85a3176704 Add support for secure views.
Added the MotionEvent.FLAG_WINDOW_IS_OBSCURED flag which is set by the
input manager whenever another visible window is partly or wholly obscured
the target of a touch event so that applications can filter touches
accordingly.

Added a "filterTouchesWhenObscured" attribute to View which can be used to
enable filtering of touches when the view's window is obscured.

Change-Id: I936d9c85013fd2d77fb296a600528d30a29027d2
2010-09-08 11:50:55 -07:00
Jeff Brown
349703effc Native input event dispatching.
Target identification is now fully native.
Fixed a couple of minor issues related to input injection.
Native input enabled by default, can be disabled by setting
WindowManagerPolicy.ENABLE_NATIVE_INPUT_DISPATCH to false.

Change-Id: I7edf66ed3e987cc9306ad4743ac57a116af452ff
2010-06-28 19:10:54 -07:00