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script: use passive event listener option on AddEventListenerOptions (#35877)

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Signed-off-by: Shane Handley <shanehandley@fastmail.com>
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shanehandley 2025-03-10 20:44:16 +11:00 • committed by GitHub
parent 1b6b21cb85
commit 7fc5dc5c69
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6 changed files with 87 additions and 217 deletions
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47
components/script/dom/event.rs
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@ -95,6 +95,9 @@ pub(crate) struct Event {
/// <https://dom.spec.whatwg.org/#event-relatedtarget>
related_target: MutNullableDom<EventTarget>,
/// <https://dom.spec.whatwg.org/#in-passive-listener-flag>
in_passive_listener: Cell<bool>,
}
/// An element on an [event path](https://dom.spec.whatwg.org/#event-path)
@ -140,6 +143,7 @@ impl Event {
time_stamp: CrossProcessInstant::now(),
path: DomRefCell::default(),
related_target: Default::default(),
in_passive_listener: Cell::new(false),
}
}
@ -217,6 +221,10 @@ impl Event {
self.target.set(target_);
}
pub(crate) fn set_in_passive_listener(&self, value: bool) {
self.in_passive_listener.set(value);
}
/// <https://dom.spec.whatwg.org/#concept-event-path-append>
#[cfg_attr(crown, allow(crown::unrooted_must_root))]
pub(crate) fn append_to_path(
@ -728,6 +736,13 @@ impl Event {
&*target_node.GetRootNode(&GetRootNodeOptions::empty()) != shadow_root.upcast::<Node>()
}
/// <https://dom.spec.whatwg.org/#set-the-canceled-flag>
fn set_the_cancelled_flag(&self) {
if self.cancelable.get() && !self.in_passive_listener.get() {
self.canceled.set(EventDefault::Prevented)
}
}
}
impl EventMethods<crate::DomTypeHolder> for Event {
@ -917,9 +932,7 @@ impl EventMethods<crate::DomTypeHolder> for Event {
/// <https://dom.spec.whatwg.org/#dom-event-preventdefault>
fn PreventDefault(&self) {
if self.cancelable.get() {
self.canceled.set(EventDefault::Prevented)
}
self.set_the_cancelled_flag();
}
/// <https://dom.spec.whatwg.org/#dom-event-stoppropagation>
@ -951,7 +964,7 @@ impl EventMethods<crate::DomTypeHolder> for Event {
/// <https://dom.spec.whatwg.org/#dom-event-returnvalue>
fn SetReturnValue(&self, val: bool) {
if !val {
self.PreventDefault();
self.set_the_cancelled_flag();
}
}
@ -1224,13 +1237,14 @@ fn inner_invoke(
// TODO Step 2.3 If phase is "capturing" and listener’s capture is false, then continue.
// TODO Step 2.4 If phase is "bubbling" and listener’s capture is true, then continue.
let event_target = event
.GetCurrentTarget()
.expect("event target was initialized as part of \"invoke\"");
// Step 2.5 If listener’s once is true, then remove an event listener given event’s currentTarget
// attribute value and listener.
if let CompiledEventListener::Listener(event_listener) = listener {
event
.GetCurrentTarget()
.expect("event target was initialized as part of \"invoke\"")
.remove_listener_if_once(&event.type_(), event_listener);
event_target.remove_listener_if_once(&event.type_(), event_listener);
}
// Step 2.6 Let global be listener callback’s associated realm’s global object.
@ -1249,7 +1263,10 @@ fn inner_invoke(
}
}
// TODO Step 2.9 If listener’s passive is true, then set event’s in passive listener flag.
// Step 2.9 If listener’s passive is true, then set event's in passive listener flag.
if let CompiledEventListener::Listener(event_listener) = listener {
event.set_in_passive_listener(event_target.is_passive(&event.type_(), event_listener));
}
// Step 2.10 If global is a Window object, then record timing info for event listener given event and listener.
// Step 2.11 Call a user object’s operation with listener’s callback, "handleEvent", « event »,
@ -1258,19 +1275,13 @@ fn inner_invoke(
// associated realm’s global object.
// TODO Step 2.10.2 Set legacyOutputDidListenersThrowFlag if given.
let marker = TimelineMarker::start("DOMEvent".to_owned());
listener.call_or_handle_event(
&event
.GetCurrentTarget()
.expect("event target was initialized as part of \"invoke\""),
event,
ExceptionHandling::Report,
can_gc,
);
listener.call_or_handle_event(&event_target, event, ExceptionHandling::Report, can_gc);
if let Some(window) = timeline_window {
window.emit_timeline_marker(marker.end());
}
// TODO Step 2.12 Unset event’s in passive listener flag.
// Step 2.12 Unset event’s in passive listener flag.
event.set_in_passive_listener(false);
// Step 2.13 If global is a Window object, then set global’s current event to currentEvent.
if let Some(window) = global.downcast::<Window>() {