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Use if-let in dispatch_to_listeners, and simplify break conditions.

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This commit is contained in:
Ms2ger 2015-09-16 13:41:33 +02:00
parent a5925020ce
commit 995cb21b48
1 changed files with 22 additions and 32 deletions
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54
components/script/dom/eventdispatcher.rs
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@ -21,25 +21,20 @@ fn dispatch_to_listeners(event: &Event, target: &EventTarget, chain: &[&EventTar
/* capturing */
event.set_phase(EventPhase::Capturing);
for cur_target in chain.iter().rev() {
let stopped = match cur_target.get_listeners_for(&type_, ListenerPhase::Capturing) {
Some(listeners) => {
event.set_current_target(cur_target);
for listener in &listeners {
// Explicitly drop any exception on the floor.
listener.call_or_handle_event(*cur_target, event, Report);
if let Some(listeners) = cur_target.get_listeners_for(&type_, ListenerPhase::Capturing) {
event.set_current_target(cur_target);
for listener in &listeners {
// Explicitly drop any exception on the floor.
listener.call_or_handle_event(*cur_target, event, Report);
if event.stop_immediate() {
break;
}
if event.stop_immediate() {
break;
}
event.stop_propagation()
}
None => false
};
if stopped {
break;
if event.stop_propagation() {
break;
}
}
}
@ -48,8 +43,7 @@ fn dispatch_to_listeners(event: &Event, target: &EventTarget, chain: &[&EventTar
event.set_phase(EventPhase::AtTarget);
event.set_current_target(target.clone());
let opt_listeners = target.get_listeners(&type_);
for listeners in opt_listeners {
if let Some(listeners) = target.get_listeners(&type_) {
for listener in listeners {
// Explicitly drop any exception on the floor.
listener.call_or_handle_event(target, event, Report);
@ -66,24 +60,20 @@ fn dispatch_to_listeners(event: &Event, target: &EventTarget, chain: &[&EventTar
event.set_phase(EventPhase::Bubbling);
for cur_target in chain {
let stopped = match cur_target.get_listeners_for(&type_, ListenerPhase::Bubbling) {
Some(listeners) => {
event.set_current_target(cur_target);
for listener in &listeners {
// Explicitly drop any exception on the floor.
listener.call_or_handle_event(*cur_target, event, Report);
if let Some(listeners) = cur_target.get_listeners_for(&type_, ListenerPhase::Bubbling) {
event.set_current_target(cur_target);
for listener in &listeners {
// Explicitly drop any exception on the floor.
listener.call_or_handle_event(*cur_target, event, Report);
if event.stop_immediate() {
break;
}
if event.stop_immediate() {
break;
}
event.stop_propagation()
}
None => false
};
if stopped {
break;
if event.stop_propagation() {
break;
}
}
}
}