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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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Add the ability to read off the tap state in the tapping
model. Useful for emulation i lieu of tapping gestures.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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The current code will treat a 3-down-2-up as a tap. This patch
changes the logic so that taps are only emitted when the number of
fingers returns to the baseline.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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The intentional tap starts with a finger in the air. This patch
treats the sequence up-down-up as unintentional, unless performed
with a single finger. Fixes the problem with accidental taps during
multi-finger gestures.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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The current code cancels tapping when dragging is active. This
patch adds zooming to the set, to inhibit tapping also when a
perfect zoom without dragging is performed.
Reported-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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The current logic assumes there will be at least one frame with
between touch up and touch down or the tap will not be properly
timed out. Fixed with this patch.
Reported-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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The current code only emits taps from zero fingers to N fingers.
This patch introduces tapping from any prior finger configuration.
A tap is defined as an increased number of fingers followed by a
decrease within the tap timeout. A tap is reported as the maximum
number of fingers present during the tap sequence.
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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Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
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Also connect the timeout for press with the timeout of tapping.
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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Accumulated values can be obtained either by using the raw_delta,
which is the actual (filtered) change between frames, or by using
the action delta, which sums up to the same position, but in a non-
linear fashion. Use the raw delta for pointer gestures.
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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Reorganize the mode model to use bitmasks for tickle and active,
and refine the tickle logic for each gesture.
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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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