#[non_exhaustive]pub enum Event {
Buffer {
format: WEnum<Format>,
width: u32,
height: u32,
stride: u32,
},
Flags {
flags: WEnum<Flags>,
},
Ready {
tv_sec_hi: u32,
tv_sec_lo: u32,
tv_nsec: u32,
},
Failed,
Damage {
x: u32,
y: u32,
width: u32,
height: u32,
},
LinuxDmabuf {
format: u32,
width: u32,
height: u32,
},
BufferDone,
}
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Buffer
wl_shm buffer information
Provides information about wl_shm buffer parameters that need to be used for this frame. This event is sent once after the frame is created if wl_shm buffers are supported.
Fields
Flags
frame flags
Provides flags about the frame. This event is sent once before the “ready” event.
Ready
indicates frame is available for reading
Called as soon as the frame is copied, indicating it is available for reading. This event includes the time at which presentation happened at.
The timestamp is expressed as tv_sec_hi, tv_sec_lo, tv_nsec triples, each component being an unsigned 32-bit value. Whole seconds are in tv_sec which is a 64-bit value combined from tv_sec_hi and tv_sec_lo, and the additional fractional part in tv_nsec as nanoseconds. Hence, for valid timestamps tv_nsec must be in [0, 999999999]. The seconds part may have an arbitrary offset at start.
After receiving this event, the client should destroy the object.
Fields
Failed
frame copy failed
This event indicates that the attempted frame copy has failed.
After receiving this event, the client should destroy the object.
Damage
carries the coordinates of the damaged region
This event is sent right before the ready event when copy_with_damage is requested. It may be generated multiple times for each copy_with_damage request.
The arguments describe a box around an area that has changed since the last copy request that was derived from the current screencopy manager instance.
The union of all regions received between the call to copy_with_damage and a ready event is the total damage since the prior ready event.
Only available since version 2 of the interface
Fields
LinuxDmabuf
linux-dmabuf buffer information
Provides information about linux-dmabuf buffer parameters that need to be used for this frame. This event is sent once after the frame is created if linux-dmabuf buffers are supported.
Only available since version 3 of the interface
BufferDone
all buffer types reported
This event is sent once after all buffer events have been sent.
The client should proceed to create a buffer of one of the supported types, and send a “copy” request.
Only available since version 3 of the interface
Implementations§
Trait Implementations§
Auto Trait Implementations§
impl Freeze for Event
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
source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
source§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
.source§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
.source§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s.source§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.