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Almost all non Apple touchpads have visible markings for software button areas, so limit clickfinger behavior to Apple clickpads, and implement software button areas for others. This is a slightly fancier implementation than the simplest model and ported over from libtouchpad. It implements a state machine for the software buttons with left and right buttons currently implemented. Buttons are oriented left-to-right, in a horizontal bar. No random button placement allowed. In general, the procedure is: - if a finger sets down in the left button area, a click is a left click - if a finger sets down in the right button area, a click is a right click - if a finger leaves the button area, a click is a left click - if a finger starts outside the button area, a click is a left click Two timeouts are used to handle buttons more smoothly: - if a finger sets down in a button area but "immediately" moves over to a different area, that area takes effect on a click. - if a finger leaves a button area and "immediately" clicks or moves back into the area, the button still takes effect on a click. - if a finger changes between areas and stays there for a timeout, that area takes effect on a click. Note the button area states are named BOTTOM_foo to make it easier to later add support for a top button area such as can be found on the Thinkpad [2-5]40 series. Co-authored-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Jonas Ådahl <jadahl@gmail.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net> |
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libinput libinput is a library that handles input devices for display servers and other applications that need to directly deal with input devices. It provides device detection, device handling, input device event processing and abstraction so minimize the amount of custom input code the user of libinput need to provide the common set of functionality that users expect. Input event processing includes scaling touch coordinates, generating pointer events from touchpads, pointer acceleration, etc. libinput originates from weston, the Wayland reference compositor. The source code of libinput can be found at: http://cgit.freedesktop.org/wayland/libinput For more information, visit: http://www.freedesktop.org/wiki/Software/libinput/