Struct ViewArgs

pub struct ViewArgs {
    pub token: ViewToken,
    pub debug_name: Option<String>,
}

Represents the root of a subgraph within a larger scene graph. Nodes can be attached to the View as children, and these Nodes will have the Views’ coordinate transform applied to their own, in addition to being clipped to the Views’ bounding box. See ViewProperties.

Each View is linked to a paired ViewHolder via a shared token pair.

Usually the View and its associated ViewHolder exist in separate processes. By combining them, the UI for an entire system can be built using content contributed from many different processes.

Fields

token: ViewToken

debug_name: Option<String>

Trait Implementations

impl Debug for ViewArgs

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

Formats the value using the given formatter.

impl Decode<ViewArgs, DefaultFuchsiaResourceDialect> for ViewArgs

fn new_empty() -> Self

Creates a valid instance of Self. The specific value does not matter, since it will be overwritten by decode.

unsafe fn decode( &mut self, decoder: &mut Decoder<'_, DefaultFuchsiaResourceDialect>, offset: usize, _depth: Depth, ) -> Result<()>

Decodes an object of type T from the decoder’s buffers into self.

impl Encode<ViewArgs, DefaultFuchsiaResourceDialect> for &mut ViewArgs

unsafe fn encode( self, encoder: &mut Encoder<'_, DefaultFuchsiaResourceDialect>, offset: usize, _depth: Depth, ) -> Result<()>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID.

impl<T0: Encode<ViewToken, DefaultFuchsiaResourceDialect>, T1: Encode<Optional<UnboundedString>, DefaultFuchsiaResourceDialect>> Encode<ViewArgs, DefaultFuchsiaResourceDialect> for (T0, T1)

unsafe fn encode( self, encoder: &mut Encoder<'_, DefaultFuchsiaResourceDialect>, offset: usize, depth: Depth, ) -> Result<()>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID.

impl PartialEq for ViewArgs

fn eq(&self, other: &ViewArgs) -> 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 ResourceTypeMarker for ViewArgs

type Borrowed<'a> = &'a mut ViewArgs

The Rust type to use for encoding. This is a particular Encode<Self> type cheaply obtainable from &mut Self::Owned. There are three cases:

fn take_or_borrow<'a>( value: &'a mut <Self as TypeMarker>::Owned, ) -> Self::Borrowed<'a>

Cheaply converts from &mut Self::Owned to Self::Borrowed. For HandleBased types this is “take” (it returns an owned handle and replaces value with Handle::invalid), and for all other types it is “borrow” (just converts from one reference to another).

impl TypeMarker for ViewArgs

type Owned = ViewArgs

The owned Rust type which this FIDL type decodes into.

fn inline_align(_context: Context) -> usize

Returns the minimum required alignment of the inline portion of the encoded object. It must be a (nonzero) power of two.

fn inline_size(_context: Context) -> usize

Returns the size of the inline portion of the encoded object, including padding for alignment. Must be a multiple of inline_align.

fn encode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and encoding requires no validation. When true, we can optimize encoding arrays and vectors of Self::Owned to a single memcpy.

fn decode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and decoding requires no validation. When true, we can optimize decoding arrays and vectors of Self::Owned to a single memcpy.

impl Standalone<DefaultFuchsiaResourceDialect> for ViewArgs

impl StructuralPartialEq for ViewArgs