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5f927a2c28
Create two new data structures in the `script` crate to hold senders and receiver: - `ScriptThreadSenders`: holds all outgoing channels from the `ScriptThread` including a channel to the `ScriptThread` itself. The ultimate goal with this is to reduce duplication by giving a boxed version of this this to `Window`s. - `ScriptThradReceivers`: holds all incoming channels to the `ScriptThread`. This isn't cloenable like the senders. This is used to abstract away `recv()` and `try_recv()` methods used to make the `ScriptThread` event loop easier to read. In addition: - The many duplicated `ScriptThread` self-senders for the `TaskManager` have been removed and, in general, a lot of boilerplate is removed as well. - Visibilty of all methods affected by this change is changed to `pub(crate)` in order to take advantage of dead code detection. Some dead code produced from macros is removed. - Some conversion code is refactord into implementations of the `From` trait. - The names of channels uses a standard "sender" and "receiver" naming as well as trying to be descriptive of where they go in `ScriptThread` as well as `InitialScriptState` Signed-off-by: Martin Robinson <mrobinson@igalia.com>
47 lines
1.4 KiB
Rust
47 lines
1.4 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use std::fmt;
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use base::id::PipelineId;
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use crate::script_runtime::{CommonScriptMsg, ScriptChan, ScriptThreadEventCategory};
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use crate::task::{TaskCanceller, TaskOnce};
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use crate::task_source::{TaskSource, TaskSourceName};
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#[derive(JSTraceable)]
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/// <https://html.spec.whatwg.org/multipage/#timer-task-source>
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pub struct TimerTaskSource(
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pub Box<dyn ScriptChan + Send + 'static>,
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#[no_trace] pub PipelineId,
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);
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impl Clone for TimerTaskSource {
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fn clone(&self) -> TimerTaskSource {
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TimerTaskSource(self.0.as_boxed(), self.1)
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}
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}
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impl fmt::Debug for TimerTaskSource {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "TimerTaskSource(...)")
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}
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}
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impl TaskSource for TimerTaskSource {
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const NAME: TaskSourceName = TaskSourceName::Timer;
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fn queue_with_canceller<T>(&self, task: T, canceller: &TaskCanceller) -> Result<(), ()>
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where
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T: TaskOnce + 'static,
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{
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let msg = CommonScriptMsg::Task(
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ScriptThreadEventCategory::TimerEvent,
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Box::new(canceller.wrap_task(task)),
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Some(self.1),
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Self::NAME,
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);
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self.0.send(msg).map_err(|_| ())
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}
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}
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