Enum Layer 

pub enum Layer {
    Container(EngineLayer),
    DisplayList(DisplayListLayer),
    Embedded(EmbeddedLayer),
    Video(VideoLayer),
}

One node of a frame’s layer tree: the engine’s flow::Layer.

Variants

Container(EngineLayer)

Children under one effect: what a push_* opens and pop closes, or a subtree a previous frame built, added again.

DisplayList(DisplayListLayer)

A recorded picture at an offset: flow’s DisplayListLayer, from add_picture.

Embedded(EmbeddedLayer)

A composition layer at its place in paint order: flow’s PlatformViewLayer, from add_embedded_layer. It draws nothing; the host places the layer and makes room for it.

Video(VideoLayer)

A video, drawn as part of the picture at its place in paint order: Chromium’s cc::VideoLayer, from add_video. The host supplies the frame when it draws.

Trait Implementations

impl Clone for Layer

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Layer

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

Formats the value using the given formatter.

impl PartialEq for Layer

Two layers are equal when they are the same node or show the same: a container by pointer first, so a retained subtree compares at once.

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

Equality operator ==.

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

Inequality operator !=.