Struct script::dom::paintworkletglobalscope::PaintWorkletGlobalScope

#[repr(C)]
pub struct PaintWorkletGlobalScope {
    worklet_global: WorkletGlobalScope,
    image_cache: Arc<dyn ImageCache>,
    paint_definitions: DomRefCell<HashMap<Atom, Box<PaintDefinition>>>,
    paint_class_instances: DomRefCell<HashMap<Atom, Box<Heap<JSVal>>>>,
    cached_name: DomRefCell<Atom>,
    cached_size: Cell<Size2D<f32, CSSPixel>>,
    cached_device_pixel_ratio: Cell<Scale<f32, CSSPixel, DevicePixel>>,
    cached_properties: DomRefCell<Vec<(Atom, String)>>,
    cached_arguments: DomRefCell<Vec<String>>,
    cached_result: DomRefCell<DrawAPaintImageResult>,
}

https://drafts.css-houdini.org/css-paint-api/#paintworkletglobalscope

Fields

worklet_global: WorkletGlobalScope

The worklet global for this object

image_cache: Arc<dyn ImageCache>

The image cache

paint_definitions: DomRefCell<HashMap<Atom, Box<PaintDefinition>>>

https://drafts.css-houdini.org/css-paint-api/#paint-definitions

paint_class_instances: DomRefCell<HashMap<Atom, Box<Heap<JSVal>>>>

https://drafts.css-houdini.org/css-paint-api/#paint-class-instances

cached_name: DomRefCell<Atom>

The most recent name the worklet was called with

cached_size: Cell<Size2D<f32, CSSPixel>>

The most recent size the worklet was drawn at

cached_device_pixel_ratio: Cell<Scale<f32, CSSPixel, DevicePixel>>

The most recent device pixel ratio the worklet was drawn at

cached_properties: DomRefCell<Vec<(Atom, String)>>

The most recent properties the worklet was drawn at

cached_arguments: DomRefCell<Vec<String>>

The most recent arguments the worklet was drawn at

cached_result: DomRefCell<DrawAPaintImageResult>

The most recent result

Implementations

impl PaintWorkletGlobalScope

fn __assert_parent_type(&self)

impl PaintWorkletGlobalScope

pub fn new(
    runtime: &Runtime,
    pipeline_id: PipelineId,
    base_url: ServoUrl,
    executor: WorkletExecutor,
    init: &WorkletGlobalScopeInit
) -> Root<Dom<PaintWorkletGlobalScope>>

pub fn image_cache(&self) -> Arc<dyn ImageCache>

pub fn perform_a_worklet_task(&self, task: PaintWorkletTask)

fn draw_a_paint_image(
    &self,
    name: &Atom,
    size_in_px: Size2D<f32, CSSPixel>,
    device_pixel_ratio: Scale<f32, CSSPixel, DevicePixel>,
    properties: &StylePropertyMapReadOnly,
    arguments: &[String]
) -> DrawAPaintImageResult

https://drafts.css-houdini.org/css-paint-api/#draw-a-paint-image

fn invoke_a_paint_callback(
    &self,
    name: &Atom,
    size_in_px: Size2D<f32, CSSPixel>,
    size_in_dpx: Size2D<u32, DevicePixel>,
    device_pixel_ratio: Scale<f32, CSSPixel, DevicePixel>,
    properties: &StylePropertyMapReadOnly,
    arguments: &[String]
) -> DrawAPaintImageResult

https://drafts.css-houdini.org/css-paint-api/#invoke-a-paint-callback

fn invalid_image(
    &self,
    size: Size2D<u32, DevicePixel>,
    missing_image_urls: Vec<ServoUrl>
) -> DrawAPaintImageResult

fn painter(&self, name: Atom) -> Box<dyn Painter>

Trait Implementations

impl Castable for PaintWorkletGlobalScope

fn is<T>(&self) -> boolwhere
    T: DerivedFrom<Self>,

Check whether a DOM object implements one of its deriving interfaces.

fn upcast<T>(&self) -> &Twhere
    T: Castable,
    Self: DerivedFrom<T>,

Cast a DOM object upwards to one of the interfaces it derives from.

fn downcast<T>(&self) -> Option<&T>where
    T: DerivedFrom<Self>,

Cast a DOM object downwards to one of the interfaces it might implement.

impl DomObject for PaintWorkletGlobalScope

fn reflector(&self) -> &Reflector

Returns the receiver’s reflector.

fn global(&self) -> Root<Dom<GlobalScope>>where
    Self: Sized,

Returns the global scope of the realm that the DomObject was created in.

impl HasParent for PaintWorkletGlobalScope

fn as_parent(&self) -> &WorkletGlobalScope

This is used in a type assertion to ensure that the source and webidls agree as to what the parent type is

type Parent = WorkletGlobalScope

impl IDLInterface for PaintWorkletGlobalScope

fn derives(class: &'static DOMClass) -> bool

Returns whether the given DOM class derives that interface.

impl JSTraceable for PaintWorkletGlobalScope

unsafe fn trace(&self, tracer: *mut JSTracer)

Trace self.

impl MallocSizeOf for PaintWorkletGlobalScope

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl MutDomObject for PaintWorkletGlobalScope

unsafe fn init_reflector(&self, obj: *mut JSObject)

Initializes the Reflector

impl PaintWorkletGlobalScopeMethods for PaintWorkletGlobalScope

fn RegisterPaint(
    &self,
    name: DOMString,
    paint_ctor: Rc<VoidFunction>
) -> Result<(), Error>

https://drafts.css-houdini.org/css-paint-api/#dom-paintworkletglobalscope-registerpaint

fn Sleep(&self, ms: u64)

This is a blocking sleep function available in the paint worklet global scope behind the dom.worklet.enabled + dom.worklet.blockingsleep.enabled prefs. It is to be used only for testing, e.g., timeouts, where otherwise one would need busy waiting to make sure a certain timeout is triggered. check-tidy: no specs after this line

impl PartialEq<PaintWorkletGlobalScope> for PaintWorkletGlobalScope

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl ToJSValConvertible for PaintWorkletGlobalScope

unsafe fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue<'_>)

Convert self to a JSVal. JSAPI failure causes a panic.

impl DerivedFrom<EventTarget> for PaintWorkletGlobalScope

impl DerivedFrom<GlobalScope> for PaintWorkletGlobalScope

impl DerivedFrom<WorkletGlobalScope> for PaintWorkletGlobalScope