playcanvas
Version:
Open-source WebGL/WebGPU 3D engine for the web
33 lines (31 loc) • 733 B
JavaScript
class EventHandle {
off() {
if (this._removed) return;
this.handler.offByHandle(this);
}
on(name, callback, scope = this) {
return this.handler._addCallback(name, callback, scope, false);
}
once(name, callback, scope = this) {
return this.handler._addCallback(name, callback, scope, true);
}
set removed(value) {
if (!value) return;
this._removed = true;
}
get removed() {
return this._removed;
}
toJSON(key) {
return undefined;
}
constructor(handler, name, callback, scope, once = false){
this._removed = false;
this.handler = handler;
this.name = name;
this.callback = callback;
this.scope = scope;
this._once = once;
}
}
export { EventHandle };