Package org.freedesktop.wayland.server

Class WlSeatResource

java.lang.Object

org.freedesktop.wayland.server.Resource<WlSeatRequests>

org.freedesktop.wayland.server.WlSeatResource

All Implemented Interfaces:

WaylandObject

public class WlSeatResource
extends Resource<WlSeatRequests>

group of input devices

A seat is a group of keyboards, pointer and touch devices. This object is published as a global during start up, or when such a device is hot plugged. A seat typically has a pointer and maintains a keyboard focus and a pointer focus.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	INTERFACE_NAME

Fields inherited from class org.freedesktop.wayland.server.Resource

wlResourcePtr

Constructor Summary

Constructors

Constructor	Description
WlSeatResource(MemorySegment pointer)
WlSeatResource(Client client, int version, int id, WlSeatRequests implementation)

Method Summary

Modifier and Type	Method	Description
void	capabilities(int capabilities)	seat capabilities changed
void	name(String name)	unique identifier for this seat

Methods inherited from class org.freedesktop.wayland.server.Resource

addDestroyListener, destroy, equals, getClient, getId, getImplementation, getPointer, getVersion, hashCode, postError, postEvent, postEvent, register, unregister

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Details

INTERFACE_NAME

public static final String INTERFACE_NAME

See Also:

• Constant Field Values

Constructor Details

WlSeatResource

public WlSeatResource(Client client,
 int version,
 int id,
 WlSeatRequests implementation)

WlSeatResource

public WlSeatResource(MemorySegment pointer)

Method Details

capabilities

public void capabilities(int capabilities)

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.

Parameters:

capabilities - capabilities of the seat

name

public void name(@Nonnull
 String name)

unique identifier for this seat

In a multi-seat configuration the seat name can be used by clients to help identify which physical devices the seat represents.

The seat name is a UTF-8 string with no convention defined for its contents. Each name is unique among all wl_seat globals. The name is only guaranteed to be unique for the current compositor instance.

The same seat names are used for all clients. Thus, the name can be shared across processes to refer to a specific wl_seat global.

The name event is sent after binding to the seat global. This event is only sent once per seat object, and the name does not change over the lifetime of the wl_seat global.

Compositors may re-use the same seat name if the wl_seat global is destroyed and re-created later.

Parameters:

name - seat identifier