Struct NativeFrame 

pub struct NativeFrame {
    pub width: u32,
    pub height: u32,
    pub pixels: Vec<u8>,
    pub slots: Vec<NativeSlot>,
    pub events: Vec<NativeEvent>,
    pub next_frame_ms: Option<u64>,
}

A presentation update. Empty pixels preserve the currently presented image and slots.

Fields

width: u32

Physical image width.

height: u32

Physical image height.

pixels: Vec<u8>

Premultiplied RGBA pixels, empty when unchanged.

slots: Vec<NativeSlot>

Complete native-child snapshot accompanying a changed image.

events: Vec<NativeEvent>

Application events emitted since the preceding frame.

next_frame_ms: Option<u64>

Delay until the next scheduled update, absent when idle.

Trait Implementations

impl<UT> ConvertError<UT> for NativeFrame

fn try_convert_unexpected_callback_error( e: UnexpectedUniFFICallbackError, ) -> Result<Self>

impl<UT> FfiConverter<UT> for NativeFrame

const TYPE_ID_META: MetadataBuffer

Type ID metadata, serialized into a MetadataBuffer.

type FfiType = RustBuffer

The low-level type used for passing values of this type over the FFI.

fn lower(v: Self) -> RustBuffer

Lower a rust value of the target type, into an FFI value of type Self::FfiType.

fn try_lift(buf: RustBuffer) -> Result<Self>

Lift a rust value of the target type, from an FFI value of type Self::FfiType.

fn write(obj: Self, buf: &mut Vec<u8>)

Write a rust value into a buffer, to send over the FFI in serialized form.

fn try_read(buf: &mut &[u8]) -> Result<Self>

Read a rust value from a buffer, received over the FFI in serialized form.

impl<UT> Lift<UT> for NativeFrame

type FfiType = <NativeFrame as FfiConverter<UT>>::FfiType

fn try_lift(v: Self::FfiType) -> Result<Self>

fn try_read(buf: &mut &[u8]) -> Result<Self>

fn try_lift_from_rust_buffer(v: RustBuffer) -> Result<Self, Error>

Convenience method

impl<UT> LiftRef<UT> for NativeFrame

type LiftType = NativeFrame

impl<UT> LiftReturn<UT> for NativeFrame

type ReturnType = <NativeFrame as Lift<UT>>::FfiType

FFI return type for trait interfaces

fn try_lift_successful_return(v: Self::ReturnType) -> Result<Self>

Lift a successfully returned value from a trait interface

fn lift_foreign_return( ffi_return: Self::ReturnType, call_status: RustCallStatus, ) -> Self

Lift a foreign returned value from a trait interface

fn lift_error(_buf: RustBuffer) -> Self

Lift a Rust value for a callback interface method error result

fn handle_callback_unexpected_error(e: UnexpectedUniFFICallbackError) -> Self

Lift a Rust value for an unexpected callback interface error

impl<UT> Lower<UT> for NativeFrame

type FfiType = <NativeFrame as FfiConverter<UT>>::FfiType

fn lower(obj: Self) -> Self::FfiType

fn write(obj: Self, buf: &mut Vec<u8>)

fn lower_into_rust_buffer(obj: Self) -> RustBuffer

Convenience method

impl<UT> LowerError<UT> for NativeFrame

fn lower_error(obj: Self) -> RustBuffer

Lower this value for scaffolding function return

impl<UT> LowerReturn<UT> for NativeFrame

type ReturnType = <NativeFrame as Lower<UT>>::FfiType

The type that should be returned by scaffolding functions for this type.

fn lower_return(v: Self) -> Result<Self::ReturnType, RustCallError>

Lower the return value from an scaffolding call

fn handle_failed_lift( error: LiftArgsError, ) -> Result<Self::ReturnType, RustCallError>

Lower the return value for failed argument lifts

impl<UT> TypeId<UT> for NativeFrame

const TYPE_ID_META: MetadataBuffer