1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
/* 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 dom::bindings::refcounted::Trusted;
use dom::event::{EventBubbles, EventCancelable};
use dom::eventtarget::EventTarget;
use script_thread::{MainThreadScriptMsg, Runnable, ScriptThread};
use std::result::Result;
use std::sync::mpsc::Sender;
use string_cache::Atom;
use task_source::TaskSource;
#[derive(JSTraceable, Clone)]
pub struct DOMManipulationTaskSource(pub Sender<MainThreadScriptMsg>);
impl TaskSource<DOMManipulationTask> for DOMManipulationTaskSource {
fn queue(&self, msg: DOMManipulationTask) -> Result<(), ()> {
self.0.send(MainThreadScriptMsg::DOMManipulation(msg)).map_err(|_| ())
}
}
impl DOMManipulationTaskSource {
pub fn queue_event(&self,
target: &EventTarget,
name: Atom,
bubbles: EventBubbles,
cancelable: EventCancelable) {
let target = Trusted::new(target);
let _ = self.0.send(MainThreadScriptMsg::DOMManipulation(DOMManipulationTask::FireEvent(
target, name, bubbles, cancelable)));
}
pub fn queue_simple_event(&self, target: &EventTarget, name: Atom) {
let target = Trusted::new(target);
let _ = self.0.send(MainThreadScriptMsg::DOMManipulation(DOMManipulationTask::FireSimpleEvent(
target, name)));
}
}
pub enum DOMManipulationTask {
// https://dom.spec.whatwg.org/#concept-event-fire
FireEvent(Trusted<EventTarget>, Atom, EventBubbles, EventCancelable),
// https://html.spec.whatwg.org/multipage/#fire-a-simple-event
FireSimpleEvent(Trusted<EventTarget>, Atom),
Runnable(Box<Runnable + Send>),
}
impl DOMManipulationTask {
pub fn handle_task(self, script_thread: &ScriptThread) {
use self::DOMManipulationTask::*;
match self {
FireEvent(element, name, bubbles, cancelable) => {
let target = element.root();
target.fire_event(&*name, bubbles, cancelable);
}
FireSimpleEvent(element, name) => {
let target = element.root();
target.fire_simple_event(&*name);
}
Runnable(runnable) => {
if !runnable.is_cancelled() {
runnable.main_thread_handler(script_thread);
}
}
}
}
}
|
