Enum wayland_client::protocol::wl_surface::Event
source · #[non_exhaustive]pub enum Event {
Enter {
output: WlOutput,
},
Leave {
output: WlOutput,
},
}
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
Enter
surface enters an output
This is emitted whenever a surface’s creation, movement, or resizing results in some part of it being within the scanout region of an output.
Note that a surface may be overlapping with zero or more outputs.
Leave
surface leaves an output
This is emitted whenever a surface’s creation, movement, or resizing results in it no longer having any part of it within the scanout region of an output.
Clients should not use the number of outputs the surface is on for frame throttling purposes. The surface might be hidden even if no leave event has been sent, and the compositor might expect new surface content updates even if no enter event has been sent. The frame event should be used instead.
Trait Implementations§
source§impl MessageGroup for Event
impl MessageGroup for Event
source§const MESSAGES: &'static [MessageDesc] = _
const MESSAGES: &'static [MessageDesc] = _
Wire representation of this MessageGroup
§type Map = ProxyMap
type Map = ProxyMap
The wrapper type for ObjectMap allowing the mapping of Object and
NewId arguments to the object map during parsing.
source§fn is_destructor(&self) -> bool
fn is_destructor(&self) -> bool
Whether this message is a destructor Read more
source§fn child<Meta: ObjectMetadata>(
opcode: u16,
version: u32,
meta: &Meta
) -> Option<Object<Meta>>
fn child<Meta: ObjectMetadata>( opcode: u16, version: u32, meta: &Meta ) -> Option<Object<Meta>>
Retrieve the child
Object
associated with this message if anysource§fn from_raw(msg: Message, map: &mut Self::Map) -> Result<Self, ()>
fn from_raw(msg: Message, map: &mut Self::Map) -> Result<Self, ()>
Construct a message from its raw representation
source§unsafe fn from_raw_c(
obj: *mut c_void,
opcode: u32,
args: *const wl_argument
) -> Result<Event, ()>
unsafe fn from_raw_c( obj: *mut c_void, opcode: u32, args: *const wl_argument ) -> Result<Event, ()>
Construct a message of this group from its C representation Read more
source§fn as_raw_c_in<F, T>(self, f: F) -> T
fn as_raw_c_in<F, T>(self, f: F) -> T
Build a C representation of this message Read more
Auto Trait Implementations§
impl !RefUnwindSafe for Event
impl Send for Event
impl Sync for Event
impl Unpin for Event
impl !UnwindSafe for Event
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more