Struct script::dom::performance::Performance

#[repr(C)]
pub struct Performance {
    eventtarget: EventTarget,
    buffer: DomRefCell<PerformanceEntryList>,
    observers: DomRefCell<Vec<PerformanceObserver>>,
    pending_notification_observers_task: Cell<bool>,
    time_origin: CrossProcessInstant,
    resource_timing_buffer_size_limit: Cell<usize>,
    resource_timing_buffer_current_size: Cell<usize>,
    resource_timing_buffer_pending_full_event: Cell<bool>,
    resource_timing_secondary_entries: DomRefCell<VecDeque<Root<Dom<PerformanceEntry>>>>,
}

Fields

eventtarget: EventTarget

buffer: DomRefCell<PerformanceEntryList>

observers: DomRefCell<Vec<PerformanceObserver>>

pending_notification_observers_task: Cell<bool>

time_origin: CrossProcessInstant

The timeOrigin as described in https://html.spec.whatwg.org/multipage/#concept-settings-object-time-origin.

resource_timing_buffer_size_limit: Cell<usize>

https://w3c.github.io/performance-timeline/#dfn-maxbuffersize The max-size of the buffer, set to 0 once the pipeline exits. TODO: have one max-size per entry type.

resource_timing_buffer_current_size: Cell<usize>

resource_timing_buffer_pending_full_event: Cell<bool>

resource_timing_secondary_entries: DomRefCell<VecDeque<Root<Dom<PerformanceEntry>>>>

Implementations

impl Performance

fn __assert_parent_type(&self)

impl Performance

fn new_inherited(time_origin: CrossProcessInstant) -> Performance

pub fn new( global: &GlobalScope, navigation_start: CrossProcessInstant, ) -> Root<Dom<Performance>>

pub(crate) fn to_dom_high_res_time_stamp( &self, instant: CrossProcessInstant, ) -> Finite<f64>

pub(crate) fn maybe_to_dom_high_res_time_stamp( &self, instant: Option<CrossProcessInstant>, ) -> Finite<f64>

pub fn clear_and_disable_performance_entry_buffer(&self)

Clear all buffered performance entries, and disable the buffer. Called as part of the window’s “clear_js_runtime” workflow, performed when exiting a pipeline.

pub fn add_multiple_type_observer( &self, observer: &DOMPerformanceObserver, entry_types: Vec<DOMString>, )

Add a PerformanceObserver to the list of observers with a set of observed entry types.

pub fn add_single_type_observer( &self, observer: &DOMPerformanceObserver, entry_type: &DOMString, buffered: bool, )

pub fn remove_observer(&self, observer: &DOMPerformanceObserver)

Remove a PerformanceObserver from the list of observers.

pub fn queue_entry( &self, entry: &PerformanceEntry, can_gc: CanGc, ) -> Option<usize>

Queue a notification for each performance observer interested in this type of performance entry and queue a low priority task to notify the observers if no other notification task is already queued.

Algorithm spec: https://w3c.github.io/performance-timeline/#queue-a-performanceentry Also this algorithm has been extented according to : https://w3c.github.io/resource-timing/#sec-extensions-performance-interface

pub fn notify_observers(&self)

Observers notifications task.

Algorithm spec (step 7): https://w3c.github.io/performance-timeline/#queue-a-performanceentry

fn can_add_resource_timing_entry(&self) -> bool

fn copy_secondary_resource_timing_buffer(&self, can_gc: CanGc)

fn fire_buffer_full_event(&self, can_gc: CanGc)

fn should_queue_resource_entry( &self, entry: &PerformanceEntry, can_gc: CanGc, ) -> bool

add a PerformanceResourceTiming entry paragraph of https://w3c.github.io/resource-timing/#sec-extensions-performance-interface

pub fn update_entry(&self, index: usize, entry: &PerformanceEntry)

Trait Implementations

impl Castable for Performance

fn is<T>(&self) -> bool

where T: DerivedFrom<Self>,

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

fn upcast<T>(&self) -> &T

where 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 Performance

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 DomObjectWrap for Performance

const WRAP: unsafe fn(_: SafeJSContext, _: &GlobalScope, _: Option<HandleObject<'_>>, _: Box<Self>, _: CanGc) -> Root<Dom<Self>> = {dom::bindings::codegen::Bindings::PerformanceBinding::Performance_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::performance::Performance>, script_runtime::CanGc) -> dom::bindings::root::Root<dom::bindings::root::Dom<dom::performance::Performance>>}

Function pointer to the general wrap function type

impl HasParent for Performance

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

impl IDLInterface for Performance

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

Returns whether the given DOM class derives that interface.

impl MallocSizeOf for Performance

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 Performance

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

Initializes the Reflector

impl PartialEq for Performance

fn eq(&self, other: &Self) -> 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 PerformanceMethods for Performance

fn Timing(&self) -> Root<Dom<PerformanceNavigationTiming>>

fn Navigation(&self) -> Root<Dom<PerformanceNavigation>>

fn Now(&self) -> Finite<f64>

fn TimeOrigin(&self) -> Finite<f64>

fn GetEntries(&self) -> Vec<Root<Dom<PerformanceEntry>>>

fn GetEntriesByType( &self, entry_type: DOMString, ) -> Vec<Root<Dom<PerformanceEntry>>>

fn GetEntriesByName( &self, name: DOMString, entry_type: Option<DOMString>, ) -> Vec<Root<Dom<PerformanceEntry>>>

fn Mark(&self, mark_name: DOMString, can_gc: CanGc) -> Result<(), Error>

fn ClearMarks(&self, mark_name: Option<DOMString>)

fn Measure( &self, measure_name: DOMString, start_mark: Option<DOMString>, end_mark: Option<DOMString>, can_gc: CanGc, ) -> Result<(), Error>

fn ClearMeasures(&self, measure_name: Option<DOMString>)

fn ClearResourceTimings(&self)

fn SetResourceTimingBufferSize(&self, max_size: u32)

fn GetOnresourcetimingbufferfull(&self) -> Option<Rc<EventHandlerNonNull>>

fn SetOnresourcetimingbufferfull( &self, listener: Option<Rc<EventHandlerNonNull>>, )

impl ToJSValConvertible for Performance

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

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

impl Traceable for Performance

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

Trace self.

impl DerivedFrom<EventTarget> for Performance

impl Eq for Performance