Carbon/build/static/store/SubscribeMapList.js

86 lines
1.6 KiB
JavaScript

import {Subscribable} from "./Subscribable.js"
import {SubscribeValue} from "./SubscribeValue.js"
class SubscribeMapList extends Subscribable {
constructor(inner) {
super()
this.inner = inner
Object.assign(this.events, {
addItem: [],
deleteItem: [],
editItem: [],
changeItem: [],
askAdd: []
})
Object.assign(this.eventDeps, {
addItem: ["changeItem"],
deleteItem: ["changeItem"],
editItem: ["changeItem"],
changeItem: [],
askAdd: []
})
this.map = new Map()
this.list = []
}
has(key) {
return this.map.has(key) && this.map.get(key).exists()
}
get(key) {
if (this.map.has(key)) {
return this.map.get(key)
} else {
const item = new this.inner()
this.map.set(key, item)
return item
}
}
forEach(f) {
this.list.forEach(key => f(key, this.get(key)))
}
askAdd(key, data) {
this.broadcast("askAdd", {key, data})
}
addStart(key, value) {
this._add(key, value, true)
}
addEnd(key, value) {
this._add(key, value, false)
}
sort() {
this.list.sort((a, b) => {
const orderA = this.map.get(a).value().order
const orderB = this.map.get(b).value().order
return orderA - orderB
})
this.broadcast("changeItem")
}
_add(key, value, start) {
let s
if (this.map.has(key)) {
const exists = this.map.get(key).exists()
s = this.map.get(key).set(value)
if (exists) {
this.broadcast("editItem", key)
} else {
this.broadcast("addItem", key)
}
} else {
s = new this.inner().set(value)
this.map.set(key, s)
if (start) this.list.unshift(key)
else this.list.push(key)
this.broadcast("addItem", key)
}
return s
}
}
export {SubscribeMapList}