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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use std::fmt;
use base::id::PipelineId;
use crate::script_runtime::{CommonScriptMsg, ScriptChan, ScriptThreadEventCategory};
use crate::task::{TaskCanceller, TaskOnce};
use crate::task_source::{TaskSource, TaskSourceName};
#[derive(JSTraceable)]
/// <https://html.spec.whatwg.org/multipage/#timer-task-source>
pub struct TimerTaskSource(
pub Box<dyn ScriptChan + Send + 'static>,
#[no_trace] pub PipelineId,
);
impl Clone for TimerTaskSource {
fn clone(&self) -> TimerTaskSource {
TimerTaskSource(self.0.clone(), self.1)
}
}
impl fmt::Debug for TimerTaskSource {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "TimerTaskSource(...)")
}
}
impl TaskSource for TimerTaskSource {
const NAME: TaskSourceName = TaskSourceName::Timer;
fn queue_with_canceller<T>(&self, task: T, canceller: &TaskCanceller) -> Result<(), ()>
where
T: TaskOnce + 'static,
{
let msg = CommonScriptMsg::Task(
ScriptThreadEventCategory::TimerEvent,
Box::new(canceller.wrap_task(task)),
Some(self.1),
Self::NAME,
);
self.0.send(msg).map_err(|_| ())
}
}
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