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b20ac2cefb
Source-Repo: https://github.com/servo/servo Source-Revision: 7f3a75fa804c0be67f1567ca4a2449cebefa9616 --HG-- extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear extra : subtree_revision : ee100538644baf6bfc695351c42ab95295d7264f
47 lines
1.5 KiB
Rust
47 lines
1.5 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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//! This module contains the `EventLoop` type, which is the constellation's
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//! view of a script thread. When an `EventLoop` is dropped, an `ExitScriptThread`
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//! message is sent to the script thread, asking it to shut down.
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use ipc_channel::Error;
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use ipc_channel::ipc::IpcSender;
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use script_traits::ConstellationControlMsg;
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use std::marker::PhantomData;
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use std::rc::Rc;
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/// https://html.spec.whatwg.org/multipage/#event-loop
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pub struct EventLoop {
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script_chan: IpcSender<ConstellationControlMsg>,
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dont_send_or_sync: PhantomData<Rc<()>>,
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}
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impl Drop for EventLoop {
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fn drop(&mut self) {
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let _ = self.script_chan.send(ConstellationControlMsg::ExitScriptThread);
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}
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}
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impl EventLoop {
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/// Create a new event loop from the channel to its script thread.
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pub fn new(script_chan: IpcSender<ConstellationControlMsg>) -> Rc<EventLoop> {
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Rc::new(EventLoop {
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script_chan: script_chan,
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dont_send_or_sync: PhantomData,
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})
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}
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/// Send a message to the event loop.
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pub fn send(&self, msg: ConstellationControlMsg) -> Result<(), Error> {
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self.script_chan.send(msg)
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}
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/// The underlying channel to the script thread.
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pub fn sender(&self) -> IpcSender<ConstellationControlMsg> {
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self.script_chan.clone()
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}
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}
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