42 lines
764 B
JavaScript
42 lines
764 B
JavaScript
import {Subscribable} from "./Subscribable.js"
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import {SubscribeValue} from "./SubscribeValue.js"
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class SubscribeMap extends Subscribable {
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constructor() {
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super()
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Object.assign(this.events, {
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addItem: [],
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changeItem: [],
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removeItem: []
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})
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this.map = new Map()
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}
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has(key) {
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return this.map.has(key) && this.map.get(key).exists()
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}
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get(key) {
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if (this.map.has(key)) {
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return this.map.get(key)
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} else {
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this.map.set(key, new SubscribeValue())
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}
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}
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set(key, value) {
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let s
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if (this.map.has(key)) {
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s = this.map.get(key).set(value)
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this.broadcast("changeItem", key)
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} else {
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s = new SubscribeValue().set(value)
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this.map.set(key, s)
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this.broadcast("addItem", key)
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}
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return s
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}
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}
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export {SubscribeMap}
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