Struct ExtSessionLockSurfaceV1

pub struct ExtSessionLockSurfaceV1 { /* private fields */ }

Available on crate feature wayland and Linux only.

a surface displayed while the session is locked

The client may use lock surfaces to display a screensaver, render a dialog to enter a password and unlock the session, or however else it sees fit.

On binding this interface the compositor will immediately send the first configure event. After making the ack_configure request in response to this event the client should attach and commit the first buffer. Committing the surface before acking the first configure is a protocol error. Committing the surface with a null buffer at any time is a protocol error.

The compositor is free to handle keyboard/pointer focus for lock surfaces however it chooses. A reasonable way to do this would be to give the first lock surface created keyboard focus and change keyboard focus if the user clicks on other surfaces.

See also the Request enum for this interface.

Implementations

impl ExtSessionLockSurfaceV1

pub fn configure(&self, serial: u32, width: u32, height: u32)

the client should resize its surface

This event is sent once on binding the interface and may be sent again at the compositor’s discretion, for example if output geometry changes.

The width and height are in surface-local coordinates and are exact requirements. Failing to match these surface dimensions in the next commit after acking a configure is a protocol error.

Trait Implementations

impl Borrow<ObjectId> for ExtSessionLockSurfaceV1

fn borrow(&self) -> &ObjectId

Immutably borrows from an owned value.

impl Clone for ExtSessionLockSurfaceV1

fn clone(&self) -> ExtSessionLockSurfaceV1

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExtSessionLockSurfaceV1

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

Formats the value using the given formatter.

impl Hash for ExtSessionLockSurfaceV1

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 PartialEq<Weak<ExtSessionLockSurfaceV1>> for ExtSessionLockSurfaceV1

fn eq(&self, other: &Weak<ExtSessionLockSurfaceV1>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

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

impl PartialEq for ExtSessionLockSurfaceV1

fn eq(&self, other: &ExtSessionLockSurfaceV1) -> bool

Tests for self and other values to be equal, and is used by ==.

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

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

impl Resource for ExtSessionLockSurfaceV1

type Request = Request

The request enum for this interface

type Event<'event> = Event<'event>

The event enum for this interface

fn interface() -> &'static Interface

The interface description

fn id(&self) -> ObjectId

The ID of this object

fn version(&self) -> u32

The version of this object

fn data<U>(&self) -> Option<&U>

where U: 'static,

Access the user-data associated with this object

fn object_data(&self) -> Option<&Arc<dyn Any + Sync + Send>>

Access the raw data associated with this object.

fn handle(&self) -> &WeakHandle

Access the backend handle associated with this object

fn from_id( conn: &DisplayHandle, id: ObjectId, ) -> Result<ExtSessionLockSurfaceV1, InvalidId>

Create an object resource from its ID

fn send_event( &self, evt: <ExtSessionLockSurfaceV1 as Resource>::Event<'_>, ) -> Result<(), InvalidId>

Send an event to this object

fn parse_request( conn: &DisplayHandle, msg: Message<ObjectId, OwnedFd>, ) -> Result<(ExtSessionLockSurfaceV1, <ExtSessionLockSurfaceV1 as Resource>::Request), DispatchError>

Parse a event for this object

fn write_event<'a>( &self, conn: &DisplayHandle, msg: <ExtSessionLockSurfaceV1 as Resource>::Event<'a>, ) -> Result<Message<ObjectId, BorrowedFd<'a>>, InvalidId>

Serialize an event for this object

fn client(&self) -> Option<Client>

The client owning this object

fn is_alive(&self) -> bool

Checks if the Wayland object associated with this proxy is still alive

fn post_error(&self, code: impl Into<u32>, error: impl Into<String>)

Trigger a protocol error on this object

fn downgrade(&self) -> Weak<Self>

Creates a weak handle to this object

impl Eq for ExtSessionLockSurfaceV1