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For features like e.g. disable-touchpad-while-typing, it is necessary for one device to be able to listen into another device's events. It is tempting to use the existing device_added / device_removed mechanism to give e.g. the keyboard a link to the touchpad, and make the keyboard code disable / re-enable the touchpad but this is wrong. This needs to be a setting of the touchpad, and the policy for things like which events to count as activity, and what sort of timeout to use to consider the device idle, belongs in the touchpad code not in the keyboard code. Add an event listeners mechanism so that the touchpad can listen for (e.g.) keyboard events, and respond to these itself. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net> Signed-off-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/