Struct wayrs_protocols::pointer_constraints_unstable_v1::zwp_pointer_constraints_v1::ZwpPointerConstraintsV1

pub struct ZwpPointerConstraintsV1 { /* private fields */ }

Available on crate feature pointer-constraints-unstable-v1 only.

constrain the movement of a pointer

The global interface exposing pointer constraining functionality. It exposes two requests: lock_pointer for locking the pointer to its position, and confine_pointer for locking the pointer to a region.

The lock_pointer and confine_pointer requests create the objects wp_locked_pointer and wp_confined_pointer respectively, and the client can use these objects to interact with the lock.

For any surface, only one lock or confinement may be active across all wl_pointer objects of the same seat. If a lock or confinement is requested when another lock or confinement is active or requested on the same surface and with any of the wl_pointer objects of the same seat, an ‘already_constrained’ error will be raised.

See Event for the list of possible events.

Implementations

impl ZwpPointerConstraintsV1

pub fn destroy<D>(self, conn: &mut Connection<D>)

destroy the pointer constraints manager object

Used by the client to notify the server that it will no longer use this pointer constraints object.

Since version 1.

pub fn lock_pointer<D>( self, conn: &mut Connection<D>, surface: WlSurface, pointer: WlPointer, region: Option<WlRegion>, lifetime: Lifetime ) -> ZwpLockedPointerV1

lock pointer to a position

The lock_pointer request lets the client request to disable movements of the virtual pointer (i.e. the cursor), effectively locking the pointer to a position. This request may not take effect immediately; in the future, when the compositor deems implementation-specific constraints are satisfied, the pointer lock will be activated and the compositor sends a locked event.

The protocol provides no guarantee that the constraints are ever satisfied, and does not require the compositor to send an error if the constraints cannot ever be satisfied. It is thus possible to request a lock that will never activate.

There may not be another pointer constraint of any kind requested or active on the surface for any of the wl_pointer objects of the seat of the passed pointer when requesting a lock. If there is, an error will be raised. See general pointer lock documentation for more details.

The intersection of the region passed with this request and the input region of the surface is used to determine where the pointer must be in order for the lock to activate. It is up to the compositor whether to warp the pointer or require some kind of user interaction for the lock to activate. If the region is null the surface input region is used.

A surface may receive pointer focus without the lock being activated.

The request creates a new object wp_locked_pointer which is used to interact with the lock as well as receive updates about its state. See the the description of wp_locked_pointer for further information.

Note that while a pointer is locked, the wl_pointer objects of the corresponding seat will not emit any wl_pointer.motion events, but relative motion events will still be emitted via wp_relative_pointer objects of the same seat. wl_pointer.axis and wl_pointer.button events are unaffected.

Since version 1.

pub fn lock_pointer_with_cb<D>( self, conn: &mut Connection<D>, surface: WlSurface, pointer: WlPointer, region: Option<WlRegion>, lifetime: Lifetime, cb: impl FnMut(EventCtx<'_, D, ZwpLockedPointerV1>) + Send + 'static ) -> ZwpLockedPointerV1

lock pointer to a position

The lock_pointer request lets the client request to disable movements of the virtual pointer (i.e. the cursor), effectively locking the pointer to a position. This request may not take effect immediately; in the future, when the compositor deems implementation-specific constraints are satisfied, the pointer lock will be activated and the compositor sends a locked event.

The protocol provides no guarantee that the constraints are ever satisfied, and does not require the compositor to send an error if the constraints cannot ever be satisfied. It is thus possible to request a lock that will never activate.

There may not be another pointer constraint of any kind requested or active on the surface for any of the wl_pointer objects of the seat of the passed pointer when requesting a lock. If there is, an error will be raised. See general pointer lock documentation for more details.

The intersection of the region passed with this request and the input region of the surface is used to determine where the pointer must be in order for the lock to activate. It is up to the compositor whether to warp the pointer or require some kind of user interaction for the lock to activate. If the region is null the surface input region is used.

A surface may receive pointer focus without the lock being activated.

The request creates a new object wp_locked_pointer which is used to interact with the lock as well as receive updates about its state. See the the description of wp_locked_pointer for further information.

Note that while a pointer is locked, the wl_pointer objects of the corresponding seat will not emit any wl_pointer.motion events, but relative motion events will still be emitted via wp_relative_pointer objects of the same seat. wl_pointer.axis and wl_pointer.button events are unaffected.

Since version 1.

pub fn confine_pointer<D>( self, conn: &mut Connection<D>, surface: WlSurface, pointer: WlPointer, region: Option<WlRegion>, lifetime: Lifetime ) -> ZwpConfinedPointerV1

confine pointer to a region

The confine_pointer request lets the client request to confine the pointer cursor to a given region. This request may not take effect immediately; in the future, when the compositor deems implementation- specific constraints are satisfied, the pointer confinement will be activated and the compositor sends a confined event.

The intersection of the region passed with this request and the input region of the surface is used to determine where the pointer must be in order for the confinement to activate. It is up to the compositor whether to warp the pointer or require some kind of user interaction for the confinement to activate. If the region is null the surface input region is used.

The request will create a new object wp_confined_pointer which is used to interact with the confinement as well as receive updates about its state. See the the description of wp_confined_pointer for further information.

Since version 1.

pub fn confine_pointer_with_cb<D>( self, conn: &mut Connection<D>, surface: WlSurface, pointer: WlPointer, region: Option<WlRegion>, lifetime: Lifetime, cb: impl FnMut(EventCtx<'_, D, ZwpConfinedPointerV1>) + Send + 'static ) -> ZwpConfinedPointerV1

confine pointer to a region

The confine_pointer request lets the client request to confine the pointer cursor to a given region. This request may not take effect immediately; in the future, when the compositor deems implementation- specific constraints are satisfied, the pointer confinement will be activated and the compositor sends a confined event.

The intersection of the region passed with this request and the input region of the surface is used to determine where the pointer must be in order for the confinement to activate. It is up to the compositor whether to warp the pointer or require some kind of user interaction for the confinement to activate. If the region is null the surface input region is used.

The request will create a new object wp_confined_pointer which is used to interact with the confinement as well as receive updates about its state. See the the description of wp_confined_pointer for further information.

Since version 1.

Trait Implementations

impl Borrow<ObjectId> for ZwpPointerConstraintsV1

fn borrow(&self) -> &ObjectId

Immutably borrows from an owned value.

impl Clone for ZwpPointerConstraintsV1

fn clone(&self) -> ZwpPointerConstraintsV1

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ZwpPointerConstraintsV1

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for ZwpPointerConstraintsV1

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ZwpPointerConstraintsV1

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq<ObjectId> for ZwpPointerConstraintsV1

fn eq(&self, other: &ObjectId) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<ZwpPointerConstraintsV1> for ObjectId

fn eq(&self, other: &ZwpPointerConstraintsV1) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq for ZwpPointerConstraintsV1

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for ZwpPointerConstraintsV1

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Proxy for ZwpPointerConstraintsV1

type Event = Event

const INTERFACE: &'static Interface = _

fn id(&self) -> ObjectId

fn version(&self) -> u32

impl TryFrom<Object> for ZwpPointerConstraintsV1

type Error = WrongObject

The type returned in the event of a conversion error.

fn try_from(object: Object) -> Result<Self, WrongObject>

Performs the conversion.

impl Copy for ZwpPointerConstraintsV1

impl Eq for ZwpPointerConstraintsV1