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Not all discarding code paths were taking the notion of a started
gesture into account. Specifically, switching to a gesture of higher
proiority would leave the old gesture without a finish. Fixed with
this patch.
Note that timeout implies not sent, so all discarding code paths
are now covered.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Gestures that has once been sent should never be held back. The
current code would under some circumstance hold the gesture end
event and later discard it. This oneliner solves the problem, which
has been around since 241c5ec, Aug 2010. LP: #744391.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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The notion of listening to touch gestures implies that the
touches of those gestures never timeout. Hence, any pending
gesture that overlaps those touches should not timeout.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Move the actual gesture discard from the recognition phase
to the instantiation phase.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Touch gesture events follow the same logic as drags, except they
cannot be held back but are emitted immediately.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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When a possible gesture is started for a global client (sysflag set),
it is desirable that gestures to other clients are disregarded until
all contacts have left the surface. In principle this could be refined
further, such that if gesture are not detected, they are passed on to
other clients, but that also affects how touches are passed onto lower
layers like XI2.1, so simply making sure a global system client gets
all events potentially leading to gestures is good enough for now.
Also note that in the current combination of synaptics/evdev X servers
and grail, there can be no overlapping potential gestures between two
global clients, or the resulting event recipient is not correct.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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The original grail uses an internal touch framework and exports some
touch information as extended attributes to gesture events. This was
never quite the intention, but rather to expose gestures and touches
on a similar footing, such that grail can be input agnostic. This
patch starts off by replacing the internal touch framework with the
utouch-frame engine.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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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 <rydberg@euromail.se>
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During finger configuration transition, as well as after a tap,
there would be no tentative gestures registered in the instantiator,
leading to faulty emission of motion events. Fixed with this patch.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Add the five first contacts to the property list, and unify the
handling of all gesture types in this regard. To avoid duplication,
move the scaling of properties closer to the gesture recognizer.
Move all gesture event handling code to grail-event.c, simplifying
the structure somewhat.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Also remove the transformed flag in favor of a unit transformation.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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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 <rydberg@euromail.se>
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By calling the grail_set_bbox(), grail will do translation of api
coordinates and matching properties to an external coordinate system,
such as screen coordinates.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Also add accumulated values for delta and velocity properties.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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For transient gestures like taps, use update only.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Add the author to the copyright, courtesy of Canonical Ltd.
Signed-off-by: Henrik Rydberg <rydberg@bitmath.org>
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