143 lines
3.7 KiB
JavaScript
143 lines
3.7 KiB
JavaScript
import DeleteStore from './Store/DeleteStore.js'
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import OperationStore from './Store/OperationStore.js'
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import StateStore from './Store/StateStore.js'
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import { generateUserID } from './Util/generateUserID.js'
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import RootID from './Util/RootID.js'
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import NamedEventHandler from './Util/NamedEventHandler.js'
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import UndoManager from './Util/UndoManager.js'
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import { messageToString, messageToRoomname } from './MessageHandler/messageToString.js'
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import Connector from './Connector.js'
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import Persistence from './Persistence.js'
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import YArray from './Type/YArray.js'
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import YMap from './Type/YMap.js'
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import YText from './Type/YText.js'
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import { YXmlFragment, YXmlElement, YXmlText } from './Type/y-xml/y-xml.js'
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import BinaryDecoder from './Binary/Decoder.js'
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import debug from 'debug'
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import Transaction from './Transaction.js'
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export default class Y extends NamedEventHandler {
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constructor (opts) {
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super()
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this._opts = opts
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this.userID = opts._userID != null ? opts._userID : generateUserID()
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this.ds = new DeleteStore(this)
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this.os = new OperationStore(this)
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this.ss = new StateStore(this)
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this.connector = new Y[opts.connector.name](this, opts.connector)
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if (opts.persistence != null) {
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this.persistence = new Y[opts.persistence.name](this, opts.persistence)
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this.persistence.retrieveContent()
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} else {
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this.persistence = null
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}
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this.connected = true
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this._missingStructs = new Map()
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this._readyToIntegrate = []
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this._transaction = null
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}
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_beforeChange () {}
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transact (f, remote = false) {
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let initialCall = this._transaction === null
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if (initialCall) {
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this.emit('beforeTransaction', this, remote)
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this._transaction = new Transaction(this)
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}
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try {
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f(this)
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} catch (e) {
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console.error(e)
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}
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if (initialCall) {
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// emit change events on changed types
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this._transaction.changedTypes.forEach(function (subs, type) {
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type._callObserver(subs, remote)
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})
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// when all changes & events are processed, emit afterTransaction event
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this.emit('afterTransaction', this, remote)
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this._transaction = null
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}
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}
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// fake _start for root properties (y.set('name', type))
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get _start () {
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return null
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}
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set _start (start) {
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return null
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}
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get room () {
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return this._opts.connector.room
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}
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get (name, TypeConstructor) {
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let id = new RootID(name, TypeConstructor)
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let type = this.os.get(id)
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if (type === null) {
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type = new TypeConstructor()
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type._id = id
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type._parent = this
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type._integrate(this)
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}
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return type
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}
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disconnect () {
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if (this.connected) {
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this.connected = false
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return this.connector.disconnect()
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} else {
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return Promise.resolve()
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}
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}
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reconnect () {
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if (!this.connected) {
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this.connected = true
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return this.connector.reconnect()
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} else {
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return Promise.resolve()
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}
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}
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destroy () {
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this.share = null
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if (this.connector.destroy != null) {
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this.connector.destroy()
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} else {
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this.connector.disconnect()
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}
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this.os = null
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this.ds = null
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this.ss = null
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}
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}
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Y.extend = function extendYjs () {
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for (var i = 0; i < arguments.length; i++) {
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var f = arguments[i]
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if (typeof f === 'function') {
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f(Y)
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} else {
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throw new Error('Expected a function!')
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}
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}
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}
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// TODO: The following assignments should be moved to yjs-dist
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Y.AbstractConnector = Connector
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Y.Persisence = Persistence
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Y.Array = YArray
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Y.Map = YMap
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Y.Text = YText
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Y.XmlElement = YXmlElement
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Y.XmlFragment = YXmlFragment
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Y.XmlText = YXmlText
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Y.utils = {
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BinaryDecoder,
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UndoManager
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}
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Y.debug = debug
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debug.formatters.Y = messageToString
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debug.formatters.y = messageToRoomname
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