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Layer

browser_protocol::layertree

Struct Layer

pub struct Layer {Show 16 fields
    pub layerId: LayerId,
    pub parentLayerId: Option<LayerId>,
    pub backendNodeId: Option<BackendNodeId>,
    pub offsetX: f64,
    pub offsetY: f64,
    pub width: f64,
    pub height: f64,
    pub transform: Option<Vec<f64>>,
    pub anchorX: Option<f64>,
    pub anchorY: Option<f64>,
    pub anchorZ: Option<f64>,
    pub paintCount: u64,
    pub drawsContent: bool,
    pub invisible: Option<bool>,
    pub scrollRects: Option<Vec<ScrollRect>>,
    pub stickyPositionConstraint: Option<StickyPositionConstraint>,
}

Expand description

Information about a compositing layer.

Fields§

§layerId: LayerId

The unique id for this layer.

§parentLayerId: Option<LayerId>

The id of parent (not present for root).

§backendNodeId: Option<BackendNodeId>

The backend id for the node associated with this layer.

§offsetX: f64

Offset from parent layer, X coordinate.

§offsetY: f64

Offset from parent layer, Y coordinate.

§width: f64

Layer width.

§height: f64

Layer height.

§transform: Option<Vec<f64>>

Transformation matrix for layer, default is identity matrix

§anchorX: Option<f64>

Transform anchor point X, absent if no transform specified

§anchorY: Option<f64>

Transform anchor point Y, absent if no transform specified

§anchorZ: Option<f64>

Transform anchor point Z, absent if no transform specified

§paintCount: u64

Indicates how many time this layer has painted.

§drawsContent: bool

Indicates whether this layer hosts any content, rather than being used for transform/scrolling purposes only.

§invisible: Option<bool>

Set if layer is not visible.

§scrollRects: Option<Vec<ScrollRect>>

Rectangles scrolling on main thread only.

§stickyPositionConstraint: Option<StickyPositionConstraint>

Sticky position constraint information

Trait Implementations§

impl Clone for Layer

fn clone(&self) -> Layer

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Debug for Layer

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

Formats the value using the given formatter. Read more

impl Default for Layer

fn default() -> Layer

Returns the “default value” for a type. Read more

impl<'de> Deserialize<'de> for Layer

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

impl Serialize for Layer

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: Serializer,

Serialize this value into the given Serde serializer. Read more

Auto Trait Implementations§

impl Freeze for Layer

impl RefUnwindSafe for Layer

impl Send for Layer

impl Sync for Layer

impl Unpin for Layer

impl UnsafeUnpin for Layer

impl UnwindSafe for Layer

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,