forked from mirrors/gecko-dev
0e04a592f6
Implement the task source API for the File Reader task source, enabling using task sources from non-main threads. --- - [X] `./mach build -d` does not report any errors - [X] `./mach test-tidy` does not report any errors - [X] These changes fix (partially) #7959 (github issue number if applicable). - [X] These changes do not require tests because they're refactoring existing code Source-Repo: https://github.com/servo/servo Source-Revision: 48a912f57ec51e55e7905983b2bf368a07a9902f
56 lines
1.9 KiB
Rust
56 lines
1.9 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 dom::bindings::global::GlobalRef;
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use dom::bindings::refcounted::Trusted;
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use dom::event::{EventBubbles, EventCancelable, EventRunnable};
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use dom::eventtarget::EventTarget;
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use dom::window::Window;
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use script_thread::{MainThreadScriptMsg, Runnable, RunnableWrapper, ScriptThread};
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use std::result::Result;
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use std::sync::mpsc::Sender;
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use string_cache::Atom;
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use task_source::TaskSource;
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#[derive(JSTraceable, Clone)]
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pub struct UserInteractionTaskSource(pub Sender<MainThreadScriptMsg>);
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impl TaskSource for UserInteractionTaskSource {
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fn queue_with_wrapper<T>(&self,
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msg: Box<T>,
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wrapper: &RunnableWrapper)
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-> Result<(), ()>
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where T: Runnable + Send + 'static {
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let msg = UserInteractionTask(wrapper.wrap_runnable(msg));
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self.0.send(MainThreadScriptMsg::UserInteraction(msg)).map_err(|_| ())
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}
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}
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impl UserInteractionTaskSource {
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pub fn queue_event(&self,
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target: &EventTarget,
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name: Atom,
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bubbles: EventBubbles,
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cancelable: EventCancelable,
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window: &Window) {
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let target = Trusted::new(target);
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let runnable = box EventRunnable {
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target: target,
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name: name,
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bubbles: bubbles,
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cancelable: cancelable,
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};
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let _ = self.queue(runnable, GlobalRef::Window(window));
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}
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}
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pub struct UserInteractionTask(pub Box<Runnable + Send>);
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impl UserInteractionTask {
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pub fn handle_task(self, script_thread: &ScriptThread) {
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if !self.0.is_cancelled() {
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self.0.main_thread_handler(script_thread);
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}
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}
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}
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