Carbon/src/js/store/SubscribeSet.js

51 lines
803 B
JavaScript
Raw Normal View History

import {Subscribable} from $to_relative "/js/store/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}