grail.git/src/grail-api.c, branch v1.0.15

Add tap emulation

2010-09-21T10:56:17+00:00

Touchscreens always emit a button event when touching the screen. Trackpads, however, are considered hovering while touching the pad, and instead uses taps to emits button events, which is traditionally implemented elsewhere, and thus leaves a functionality discrepancy. This patch adds tap emulation to grail, utilizing gesture engine. Signed-off-by: Henrik Rydberg

Split pointer status and report status

2010-09-21T10:56:17+00:00

Separate out reporting of the touch state, such that reporting can be deferred. Does not introduce any logic changes. Signed-off-by: Henrik Rydberg

bug: Only report position change events

2010-09-21T10:56:17+00:00

This bug was introduced in v1.0.11. Only report events when the pointer position is actually changing. Signed-off-by: Henrik Rydberg

Reorganize input event emulation code

2010-09-21T10:56:17+00:00

Inject the emulated events into the event buffer instead, and move the pointer logic into the emulation handler. Introduces no logical changes, but reveals the bug in the position event frequency. Signed-off-by: Henrik Rydberg

Move input event filter from tail side to head side

2010-09-21T10:56:17+00:00

There is no need to buffer events that will be ignored later on, so move the event filter to the upstream side. This also allows the event buffer to be used for injected events. Signed-off-by: Henrik Rydberg

Simplify book-keeping of active gestures

2010-09-21T10:56:17+00:00

The current frame computation returns the event types to filter, which is less useful than knowing what gesture types are active in the frame. Add the active gesture types to the frame struct and simplify usage. Signed-off-by: Henrik Rydberg

Only emit abs events when motion is active

2010-09-10T10:28:17+00:00

This bug was hidden behind the motion inhibit during tapping, but resurfaced when tapping from resting finger was introduced. With this patch, pointer movement is inhibited also when lifting fingers from the surface. Ideally, tapping should be treated as a transient event, which would allow zero pointer event also _before_ the tap, but presently unity seems to depend on the initial pointer movement as a touch-down event. Signed-off-by: Henrik Rydberg

Correct abs event handling

2010-08-26T14:23:38+00:00

The current code lets abs events through during one-finger drags, and tapping does not work properly due to abs events not always being present during taps. Track the pointer position and emit abs events only if no gestures are in effect, and only if not explicitly filtered. Signed-off-by: Henrik Rydberg

Make grail implementation visible to all local files

2010-08-19T18:25:54+00:00

Signed-off-by: Henrik Rydberg

Simplify touch machinery

2010-08-19T18:03:15+00:00

To be able to model touch information uniformly across all supported devices, the semantics of the touch attributes has to be treated explicitly. Drop the generic touch property array and replace it by an actual structure. In addition, the touch-engine abstraction turned out to not be needed, so drop it as well. Signed-off-by: Henrik Rydberg