Trait wayland_client::protocol::wl_seat::EventHandler

pub trait EventHandler {
    fn capabilities(&mut self, object: WlSeat, capabilities: Capability) { ... }
    fn name(&mut self, object: WlSeat, name: String) { ... }
}

An interface for handling events.

Provided methods

fn capabilities(&mut self, object: WlSeat, capabilities: Capability)

seat capabilities changed

This is emitted whenever a seat gains or loses the pointer, keyboard or touch capabilities. The argument is a capability enum containing the complete set of capabilities this seat has.

When the pointer capability is added, a client may create a wl_pointer object using the wl_seat.get_pointer request. This object will receive pointer events until the capability is removed in the future.

When the pointer capability is removed, a client should destroy the wl_pointer objects associated with the seat where the capability was removed, using the wl_pointer.release request. No further pointer events will be received on these objects.

In some compositors, if a seat regains the pointer capability and a client has a previously obtained wl_pointer object of version 4 or less, that object may start sending pointer events again. This behavior is considered a misinterpretation of the intended behavior and must not be relied upon by the client. wl_pointer objects of version 5 or later must not send events if created before the most recent event notifying the client of an added pointer capability.

The above behavior also applies to wl_keyboard and wl_touch with the keyboard and touch capabilities, respectively.

fn name(&mut self, object: WlSeat, name: String)

unique identifier for this seat

In a multiseat configuration this can be used by the client to help identify which physical devices the seat represents. Based on the seat configuration used by the compositor.

Only available since version 2 of the interface.

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Implementors

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