Struct script::dom::offscreencanvas::OffscreenCanvas
source · #[repr(C)]pub struct OffscreenCanvas {
eventtarget: EventTarget,
width: Cell<u64>,
height: Cell<u64>,
context: DomRefCell<Option<OffscreenCanvasContext>>,
placeholder: Option<Dom<HTMLCanvasElement>>,
}
Fields§
§eventtarget: EventTarget
§width: Cell<u64>
§height: Cell<u64>
§context: DomRefCell<Option<OffscreenCanvasContext>>
§placeholder: Option<Dom<HTMLCanvasElement>>
Implementations§
source§impl OffscreenCanvas
impl OffscreenCanvas
fn __assert_parent_type(&self)
source§impl OffscreenCanvas
impl OffscreenCanvas
pub fn new_inherited( width: u64, height: u64, placeholder: Option<&HTMLCanvasElement> ) -> OffscreenCanvas
fn new( global: &GlobalScope, proto: Option<HandleObject<'_>>, width: u64, height: u64, placeholder: Option<&HTMLCanvasElement> ) -> Root<Dom<OffscreenCanvas>>
pub fn Constructor( global: &GlobalScope, proto: Option<HandleObject<'_>>, width: u64, height: u64 ) -> Result<Root<Dom<OffscreenCanvas>>, Error>
pub fn get_size(&self) -> Size2D<u64>
pub fn origin_is_clean(&self) -> bool
pub fn context(&self) -> Option<Ref<'_, OffscreenCanvasContext>>
pub fn fetch_all_data(&self) -> Option<(Option<IpcSharedMemory>, Size2D<u32>)>
fn get_or_init_2d_context( &self ) -> Option<Root<Dom<OffscreenCanvasRenderingContext2D>>>
pub fn is_valid(&self) -> bool
Trait Implementations§
source§impl Castable for OffscreenCanvas
impl Castable for OffscreenCanvas
source§impl DomObject for OffscreenCanvas
impl DomObject for OffscreenCanvas
source§impl DomObjectWrap for OffscreenCanvas
impl DomObjectWrap for OffscreenCanvas
source§const WRAP: unsafe fn(_: SafeJSContext, _: &GlobalScope, _: Option<HandleObject<'_>>, _: Box<Self>) -> Root<Dom<Self>> = {dom::bindings::codegen::Bindings::OffscreenCanvasBinding::OffscreenCanvas_Binding::Wrap as for<'a, 'b> unsafe fn(script_runtime::JSContext, &'a dom::globalscope::GlobalScope, std::option::Option<js::rust::Handle<'b, *mut js::jsapi::JSObject>>, std::boxed::Box<dom::offscreencanvas::OffscreenCanvas>) -> dom::bindings::root::Root<dom::bindings::root::Dom<dom::offscreencanvas::OffscreenCanvas>>}
const WRAP: unsafe fn(_: SafeJSContext, _: &GlobalScope, _: Option<HandleObject<'_>>, _: Box<Self>) -> Root<Dom<Self>> = {dom::bindings::codegen::Bindings::OffscreenCanvasBinding::OffscreenCanvas_Binding::Wrap as for<'a, 'b> unsafe fn(script_runtime::JSContext, &'a dom::globalscope::GlobalScope, std::option::Option<js::rust::Handle<'b, *mut js::jsapi::JSObject>>, std::boxed::Box<dom::offscreencanvas::OffscreenCanvas>) -> dom::bindings::root::Root<dom::bindings::root::Dom<dom::offscreencanvas::OffscreenCanvas>>}
Function pointer to the general wrap function type
source§impl HasParent for OffscreenCanvas
impl HasParent for OffscreenCanvas
source§fn as_parent(&self) -> &EventTarget
fn as_parent(&self) -> &EventTarget
This is used in a type assertion to ensure that the source and webidls agree as to what the parent type is
type Parent = EventTarget
source§impl IDLInterface for OffscreenCanvas
impl IDLInterface for OffscreenCanvas
source§impl MallocSizeOf for OffscreenCanvas
impl MallocSizeOf for OffscreenCanvas
source§fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize
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.
source§impl MutDomObject for OffscreenCanvas
impl MutDomObject for OffscreenCanvas
source§unsafe fn init_reflector(&self, obj: *mut JSObject)
unsafe fn init_reflector(&self, obj: *mut JSObject)
Initializes the Reflector
source§impl PartialEq for OffscreenCanvas
impl PartialEq for OffscreenCanvas
source§fn eq(&self, other: &OffscreenCanvas) -> bool
fn eq(&self, other: &OffscreenCanvas) -> bool
This method tests for
self
and other
values to be equal, and is used
by ==
.source§impl ToJSValConvertible for OffscreenCanvas
impl ToJSValConvertible for OffscreenCanvas
source§impl Traceable for OffscreenCanvas
impl Traceable for OffscreenCanvas
impl DerivedFrom<EventTarget> for OffscreenCanvas
Auto Trait Implementations§
impl !Freeze for OffscreenCanvas
impl !RefUnwindSafe for OffscreenCanvas
impl !Send for OffscreenCanvas
impl !Sync for OffscreenCanvas
impl Unpin for OffscreenCanvas
impl !UnwindSafe for OffscreenCanvas
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§impl<T> MaybeBoxed<Box<T>> for T
impl<T> MaybeBoxed<Box<T>> for T
source§fn maybe_boxed(self) -> Box<T>
fn maybe_boxed(self) -> Box<T>
Convert
source§impl<T> MaybeBoxed<T> for T
impl<T> MaybeBoxed<T> for T
source§fn maybe_boxed(self) -> T
fn maybe_boxed(self) -> T
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