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Factor out a dispatch_to_listeners function from dispatch_event.
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parent
15717173ee
commit
76eea43c83
1 changed files with 27 additions and 23 deletions
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@ -12,32 +12,12 @@ use dom::eventtarget::{EventTarget, ListenerPhase};
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use dom::node::Node;
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use dom::virtualmethods::vtable_for;
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// See https://dom.spec.whatwg.org/#concept-event-dispatch for the full dispatch algorithm
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pub fn dispatch_event(target: &EventTarget, pseudo_target: Option<&EventTarget>,
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event: &Event) -> bool {
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assert!(!event.dispatching());
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assert!(event.initialized());
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event.set_target(match pseudo_target {
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Some(pseudo_target) => pseudo_target,
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None => target.clone(),
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});
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event.set_dispatching(true);
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//TODO: no chain if not participating in a tree
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let mut chain: RootedVec<JS<EventTarget>> = RootedVec::new();
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if let Some(target_node) = NodeCast::to_ref(target) {
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for ancestor in target_node.ancestors() {
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let ancestor_target = EventTargetCast::from_ref(ancestor.r());
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chain.push(JS::from_ref(ancestor_target))
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}
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}
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fn dispatch_to_listeners(event: &Event, target: &EventTarget, chain: &[&EventTarget]) {
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let type_ = event.Type();
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/* capturing */
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event.set_phase(EventPhase::Capturing);
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for cur_target in chain.r().iter().rev() {
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for cur_target in chain.iter().rev() {
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let stopped = match cur_target.get_listeners_for(&type_, ListenerPhase::Capturing) {
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Some(listeners) => {
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event.set_current_target(cur_target);
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@ -82,7 +62,7 @@ pub fn dispatch_event(target: &EventTarget, pseudo_target: Option<&EventTarget>,
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if event.bubbles() && !event.stop_propagation() {
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event.set_phase(EventPhase::Bubbling);
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for cur_target in chain.r() {
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for cur_target in chain {
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let stopped = match cur_target.get_listeners_for(&type_, ListenerPhase::Bubbling) {
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Some(listeners) => {
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event.set_current_target(cur_target);
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@ -104,6 +84,30 @@ pub fn dispatch_event(target: &EventTarget, pseudo_target: Option<&EventTarget>,
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}
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}
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}
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}
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// See https://dom.spec.whatwg.org/#concept-event-dispatch for the full dispatch algorithm
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pub fn dispatch_event(target: &EventTarget, pseudo_target: Option<&EventTarget>,
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event: &Event) -> bool {
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assert!(!event.dispatching());
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assert!(event.initialized());
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event.set_target(match pseudo_target {
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Some(pseudo_target) => pseudo_target,
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None => target.clone(),
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});
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event.set_dispatching(true);
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//TODO: no chain if not participating in a tree
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let mut chain: RootedVec<JS<EventTarget>> = RootedVec::new();
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if let Some(target_node) = NodeCast::to_ref(target) {
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for ancestor in target_node.ancestors() {
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let ancestor_target = EventTargetCast::from_ref(ancestor.r());
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chain.push(JS::from_ref(ancestor_target))
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}
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}
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dispatch_to_listeners(event, target, chain.r());
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/* default action */
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let target = event.GetTarget();
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