John Cowen 62e3c5605c ui: Change vocab of ReopenableEventSource from 'reopen' to 'open' (#5973)
You can potentially close an EventSource before its first tick by
immediately setting the readyState to a non-open state. Therefore it
never opens.

Calling `open` will then open it.

'Open' fits better than 'reopen' when taking the above into account
2019-09-04 08:35:02 +00:00

25 lines
617 B
JavaScript

/**
* Wraps an EventSource so that you can `close` and `reopen`
*
* @param {Class} eventSource - EventSource class to extend from
*/
export default function(eventSource = EventSource) {
return class extends eventSource {
constructor(source, configuration) {
super(...arguments);
this.configuration = configuration;
}
open() {
switch (this.readyState) {
case 3: // CLOSING
this.readyState = 1;
break;
case 2: // CLOSED
eventSource.apply(this, [this.source, this.configuration]);
break;
}
return this;
}
};
}