#[non_exhaustive]pub enum Event {
Destroyed {
serial: u32,
},
Keymap {
keymap_type: KeymapType,
size: u32,
keymap: OwnedFd,
},
Key {
key: u32,
state: KeyState,
},
Modifiers {
serial: u32,
depressed: u32,
locked: u32,
latched: u32,
group: u32,
},
}Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Destroyed
This keyboard has been removed and a client should release all associated resources.
This ei_keyboard object will be destroyed by the EIS implementation immmediately after
after this event is sent and as such the client must not attempt to use
it after that point.
Keymap
Notification that this device has a keymap. Future key events must be
interpreted by the client according to this keymap. For clients
of ei_handshake.context_type sender it is the client’s
responsibility to send the correct ei_keyboard.key keycodes to
generate the expected keysym in the EIS implementation.
The keymap is constant for the lifetime of the device.
This event provides a file descriptor to the client which can be memory-mapped in read-only mode to provide a keyboard mapping description. The fd must be mapped with MAP_PRIVATE by the recipient, as MAP_SHARED may fail.
This event is optional and only sent immediately after the ei_keyboard object is created
and before the ei_device.done event. It is a protocol violation to send this
event after the ei_device.done event.
Fields
keymap_type: KeymapTypethe keymap type
Key
See the ei_keyboard.key request for details.
It is a protocol violation to send this request for a client
of an ei_handshake.context_type other than receiver.
It is a protocol violation to send a key down event in the same frame as a key up event for the same key in the same frame.
Modifiers
Notification that the EIS implementation has changed group or modifier
states on this device, but not necessarily in response to an
ei_keyboard.key event. Future ei_keyboard.key requests must take the
new group or modifier state into account.
This event should not be sent in response to ei_keyboard.key events
that change the group or modifier state according to the keymap. The
client is expected to track such group or modifier states on its own.
A client must assume that all modifiers are lifted when it
receives an ei_device.paused event. The EIS implementation
must send this event after ei_device.resumed to notify the client
of any nonzero modifier state.
This event does not reqire an ei_device.frame and should
be processed immediately by the client.
This event is only sent for devices with an ei_keyboard.keymap.