yjs/src/Struct/ItemFormat.js
2018-02-15 01:25:08 +01:00

46 lines
1.3 KiB
JavaScript

import { default as Item } from './Item.js'
import { logID } from '../MessageHandler/messageToString.js'
export default class ItemString extends Item {
constructor () {
super()
this.key = null
this.value = null
}
_copy (undeleteChildren, copyPosition) {
let struct = super._copy(undeleteChildren, copyPosition)
struct.key = this.key
struct.value = this.value
return struct
}
get _length () {
return 1
}
get _countable () {
return false
}
_fromBinary (y, decoder) {
let missing = super._fromBinary(y, decoder)
this.key = decoder.readVarString()
this.value = decoder.readVarString()
return missing
}
_toBinary (encoder) {
super._toBinary(encoder)
encoder.writeVarString(this.key)
encoder.writeVarString(this.value)
}
_logString () {
const left = this._left !== null ? this._left._lastId : null
const origin = this._origin !== null ? this._origin._lastId : null
return `ItemFormat(id:${logID(this._id)},key:${JSON.stringify(this.key)},value:${JSON.stringify(this.value)},left:${logID(left)},origin:${logID(origin)},right:${logID(this._right)},parent:${logID(this._parent)},parentSub:${this._parentSub})`
}
_splitAt (y, diff) {
if (diff === 0) {
return this
} else {
return this._right
}
}
}