Enumeration
ClutterTouchpadGesturePhase
Description [src]
The phase of a touchpad gesture event.
All gestures are guaranteed to begin with an event of type
CLUTTER_TOUCHPAD_GESTURE_PHASE_BEGIN
, followed by a number
of CLUTTER_TOUCHPAD_GESTURE_PHASE_UPDATE
(possibly 0).
A finished gesture may have 2 possible outcomes, an event with phase
CLUTTER_TOUCHPAD_GESTURE_PHASE_END
will be emitted when the gesture is
considered successful, this should be used as the hint to perform any
permanent changes.
Cancelled gestures may be so for a variety of reasons, due to hardware,
or due to the gesture recognition layers hinting the gesture did not
finish resolutely (eg. a 3rd finger being added during a pinch gesture).
In these cases, the last event with report the phase
CLUTTER_TOUCHPAD_GESTURE_PHASE_CANCEL
, this should be used as a hint
to undo any visible/permanent changes that were done throughout the
progress of the gesture.
See also ClutterTouchpadPinchEvent
and ClutterTouchpadPinchEvent
.4
Members
Name | Description |
---|---|
CLUTTER_TOUCHPAD_GESTURE_PHASE_BEGIN |
The gesture has begun. |
CLUTTER_TOUCHPAD_GESTURE_PHASE_UPDATE |
The gesture has been updated. |
CLUTTER_TOUCHPAD_GESTURE_PHASE_END |
The gesture was finished, changes should be permanently applied. |
CLUTTER_TOUCHPAD_GESTURE_PHASE_CANCEL |
The gesture was cancelled, all changes should be undone. |