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Code Packages Releases Activity

♻️ Refactore, add abort option

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This commit is contained in:
Jan Andrle
2023-08-26 12:20:01 +02:00
parent 7f1506781f
commit a36786042b
6 changed files with 54 additions and 25 deletions
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18
src/events.js
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@ -1,7 +1,18 @@
import { isSignal, addSignalListener } from './signals.js';
import { isSignal, addSignalListener, removeSignalListener } from './signals-common.js';
export function on(event, listener, options){
if(isSignal(event)) return addSignalListener(event, listener);
return element=> element.addEventListener(event, listener, options);
if(!isSignal(event))
return element=> element.addEventListener(event, listener, options);
//TODO cleanup when signal removed (also TODO)
if(options && options.signal)
options.signal.addEventListener("abort", ()=> removeSignalListener(event, listener));
return addSignalListener(event, listener);
}
export function off(){//TODO is needed?
const abort= new AbortController();
return new Proxy(()=> abort.abort(), {
get(_, p){ return Reflect.get(abort, p); },
ownKeys(){ return [ "signal" ]; }
})
}
export function dispatch(event, detail){
if(typeof event === "string")
@ -10,6 +21,7 @@ export function dispatch(event, detail){
}
const connections_changes= connectionsChangesObserverConstructor();
//TODO remove listener(s) options
on.connected= function(listener){
return function registerElement(element){
connections_changes.onConnected(element, listener);