Carbon/src/js/store/SubscribeSet.js

51 lines
880 B
JavaScript

import { Subscribable } from "./Subscribable.js";
class SubscribeSet extends Subscribable {
constructor() {
super();
Object.assign(this.events, {
addItem: [],
deleteItem: [],
changeItem: [],
askAdd: [],
});
Object.assign(this.eventDeps, {
addItem: ["changeItem"],
deleteItem: ["changeItem"],
changeItem: [],
askAdd: [],
});
this.set = new Set();
}
has(key) {
return this.set.has(key);
}
forEach(f) {
for (const key of this.set.keys()) {
f(key);
}
}
askAdd(key) {
this.broadcast("askAdd", key);
}
add(key) {
if (!this.set.has(key)) {
this.set.add(key);
this.broadcast("addItem", key);
}
}
delete(key) {
if (this.set.has(key)) {
this.set.delete(key);
this.broadcast("deleteItem", key);
}
}
}
export { SubscribeSet };