v13.0.0-12 -- distribution files

package.json

@@ -1,6 +1,6 @@
 {
   "name": "yjs",
-  "version": "13.0.0-10",
+  "version": "13.0.0-12",
   "description": "A framework for real-time p2p shared editing on any data",
   "main": "./y.node.js",
   "browser": "./y.js",

src/Connector.js

@@ -43,10 +43,12 @@ export default function extendConnector (Y/* :any */) {
         this.setUserId(Y.utils.generateUserId())
       }
     }
+
     reconnect () {
       this.log('reconnecting..')
       return this.y.db.startGarbageCollector()
     }
+
     disconnect () {
       this.log('discronnecting..')
       this.connections = new Map()
@@ -56,13 +58,16 @@ export default function extendConnector (Y/* :any */) {
       this.y.db.stopGarbageCollector()
       return this.y.db.whenTransactionsFinished()
     }
+
     repair () {
       this.log('Repairing the state of Yjs. This can happen if messages get lost, and Yjs detects that something is wrong. If this happens often, please report an issue here: https://github.com/y-js/yjs/issues')
-      this.connections.forEach(user => { user.isSynced = false })
       this.isSynced = false
-      this.currentSyncTarget = null
+      this.connections.forEach((user, userId) => {
-      this.findNextSyncTarget()
+        user.isSynced = false
+        this._syncWithUser(userId)
+      })
     }
+
     setUserId (userId) {
       if (this.userId == null) {
         if (!Number.isInteger(userId)) {
@@ -77,20 +82,21 @@ export default function extendConnector (Y/* :any */) {
         return null
       }
     }
+
     onUserEvent (f) {
       this.userEventListeners.push(f)
     }
+
     removeUserEventListener (f) {
       this.userEventListeners = this.userEventListeners.filter(g => f !== g)
     }
+
     userLeft (user) {
       if (this.connections.has(user)) {
         this.log('%s: User left %s', this.userId, user)
         this.connections.delete(user)
-        if (user === this.currentSyncTarget) {
+        // check if isSynced event can be sent now
-          this.currentSyncTarget = null
+        this._setSyncedWith(null)
-          this.findNextSyncTarget()
-        }
         for (var f of this.userEventListeners) {
           f({
             action: 'userLeft',
@@ -99,7 +105,7 @@ export default function extendConnector (Y/* :any */) {
         }
       }
     }
-    userJoined (user, role) {
+    userJoined (user, role, auth) {
       if (role == null) {
         throw new Error('You must specify the role of the joined user!')
       }
@@ -112,7 +118,7 @@ export default function extendConnector (Y/* :any */) {
         isSynced: false,
         role: role,
         processAfterAuth: [],
-        auth: null,
+        auth: auth || null,
         receivedSyncStep2: false
       })
       let defer = {}
@@ -125,9 +131,7 @@ export default function extendConnector (Y/* :any */) {
           role: role
         })
       }
-      if (this.currentSyncTarget == null) {
+      this._syncWithUser(user)
-        this.findNextSyncTarget()
-      }
     }
     // Execute a function _when_ we are connected.
     // If not connected, wait until connected
@@ -138,27 +142,11 @@ export default function extendConnector (Y/* :any */) {
         this.whenSyncedListeners.push(f)
       }
     }
-    findNextSyncTarget () {
+    _syncWithUser (userid) {
-      if (this.currentSyncTarget != null || this.role === 'slave') {
+      if (this.role === 'slave') {
         return // "The current sync has not finished or this is controlled by a master!"
       }
-
+      sendSyncStep1(this, userid)
-      var syncUser = null
-      for (var [uid, user] of this.connections) {
-        if (!user.isSynced) {
-          syncUser = uid
-          break
-        }
-      }
-      var conn = this
-      if (syncUser != null) {
-        this.currentSyncTarget = syncUser
-        sendSyncStep1(this, syncUser)
-      } else {
-        if (!conn.isSynced) {
-          conn._fireIsSyncedListeners()
-        }
-      }
     }
     _fireIsSyncedListeners () {
       this.y.db.whenTransactionsFinished().then(() => {
@@ -271,6 +259,7 @@ export default function extendConnector (Y/* :any */) {
         senderConn.processAfterAuth.push([messageType, senderConn, decoder, encoder, sender])
       }
     }
+
     computeMessage (messageType, senderConn, decoder, encoder, sender) {
       if (messageType === 'sync step 1' && (senderConn.auth === 'write' || senderConn.auth === 'read')) {
         // cannot wait for sync step 1 to finish, because we may wait for sync step 2 in sync step 1 (->lock)
@@ -284,19 +273,17 @@ export default function extendConnector (Y/* :any */) {
         return Promise.reject(new Error('Unable to receive message'))
       }
     }
+
     _setSyncedWith (user) {
-      var conn = this.connections.get(user)
+      if (user != null) {
-      if (conn != null) {
+        this.connections.get(user).isSynced = true
-        conn.isSynced = true
       }
-      if (user === this.currentSyncTarget) {
+      let conns = Array.from(this.connections.values())
-        this.currentSyncTarget = null
+      if (conns.length > 0 && conns.every(u => u.isSynced)) {
-        this.findNextSyncTarget()
-      }
-      if (this.role === 'slave' && conn.role === 'master') {
         this._fireIsSyncedListeners()
       }
     }
+
     /*
       Currently, the HB encodes operations as JSON. For the moment I want to keep it
       that way. Maybe we support encoding in the HB as XML in the future, but for now I don't want

src/MessageHandler.js

@@ -92,27 +92,30 @@ export function computeMessageSyncStep1 (decoder, encoder, conn, senderConn, sen
     conn.y.destroy()
   }
 
-  // send sync step 2
+  return conn.y.db.whenTransactionsFinished().then(() => {
-  conn.y.db.requestTransaction(function * () {
+    // send sync step 2
-    encoder.writeVarString('sync step 2')
+    conn.y.db.requestTransaction(function * () {
-    encoder.writeVarString(conn.authInfo || '')
+      encoder.writeVarString('sync step 2')
+      encoder.writeVarString(conn.authInfo || '')
 
-    if (preferUntransformed) {
+      if (preferUntransformed) {
-      encoder.writeUint8(1)
+        encoder.writeUint8(1)
-      yield * this.writeOperationsUntransformed(encoder)
+        yield * this.writeOperationsUntransformed(encoder)
-    } else {
+      } else {
-      encoder.writeUint8(0)
+        encoder.writeUint8(0)
-      yield * this.writeOperations(encoder, decoder)
+        yield * this.writeOperations(encoder, decoder)
-    }
+      }
 
-    yield * this.writeDeleteSet(encoder)
+      yield * this.writeDeleteSet(encoder)
-    conn.send(senderConn.uid, encoder.createBuffer())
+      conn.send(senderConn.uid, encoder.createBuffer())
-    senderConn.receivedSyncStep2 = true
+      senderConn.receivedSyncStep2 = true
+    })
+    return conn.y.db.whenTransactionsFinished().then(() => {
+      if (conn.role === 'slave') {
+        sendSyncStep1(conn, sender)
+      }
+    })
   })
-  if (conn.role === 'slave') {
-    sendSyncStep1(conn, sender)
-  }
-  return conn.y.db.whenTransactionsFinished()
 }
 
 export function logSS (decoder, strBuilder) {

tests-lib/helper.js

@@ -141,7 +141,7 @@ export async function initArrays (t, opts) {
     let connOpts
     if (i === 0) {
       // Only one instance can gc!
-      dbOpts = Object.assign({ gc: true }, opts.db)
+      dbOpts = Object.assign({ gc: false }, opts.db)
       connOpts = Object.assign({ role: 'master' }, connector)
     } else {
       dbOpts = Object.assign({ gc: false }, opts.db)

y.node.js

@@ -1,7 +1,7 @@
 
 /**
  * yjs - A framework for real-time p2p shared editing on any data
- * @version v13.0.0-10
+ * @version v13.0.0-12
  * @license MIT
  */
 
@@ -506,27 +506,30 @@ function computeMessageSyncStep1 (decoder, encoder, conn, senderConn, sender) {
     conn.y.destroy();
   }
 
-  // send sync step 2
+  return conn.y.db.whenTransactionsFinished().then(() => {
-  conn.y.db.requestTransaction(function * () {
+    // send sync step 2
-    encoder.writeVarString('sync step 2');
+    conn.y.db.requestTransaction(function * () {
-    encoder.writeVarString(conn.authInfo || '');
+      encoder.writeVarString('sync step 2');
+      encoder.writeVarString(conn.authInfo || '');
 
-    if (preferUntransformed) {
+      if (preferUntransformed) {
-      encoder.writeUint8(1);
+        encoder.writeUint8(1);
-      yield * this.writeOperationsUntransformed(encoder);
+        yield * this.writeOperationsUntransformed(encoder);
-    } else {
+      } else {
-      encoder.writeUint8(0);
+        encoder.writeUint8(0);
-      yield * this.writeOperations(encoder, decoder);
+        yield * this.writeOperations(encoder, decoder);
-    }
+      }
 
-    yield * this.writeDeleteSet(encoder);
+      yield * this.writeDeleteSet(encoder);
-    conn.send(senderConn.uid, encoder.createBuffer());
+      conn.send(senderConn.uid, encoder.createBuffer());
-    senderConn.receivedSyncStep2 = true;
+      senderConn.receivedSyncStep2 = true;
-  });
+    });
-  if (conn.role === 'slave') {
+    return conn.y.db.whenTransactionsFinished().then(() => {
-    sendSyncStep1(conn, sender);
+      if (conn.role === 'slave') {
-  }
+        sendSyncStep1(conn, sender);
-  return conn.y.db.whenTransactionsFinished()
+      }
+    })
+  })
 }
 
 function logSS (decoder, strBuilder) {
@@ -640,10 +643,12 @@ function extendConnector (Y/* :any */) {
         this.setUserId(Y.utils.generateUserId());
       }
     }
+
     reconnect () {
       this.log('reconnecting..');
       return this.y.db.startGarbageCollector()
     }
+
     disconnect () {
       this.log('discronnecting..');
       this.connections = new Map();
@@ -653,13 +658,16 @@ function extendConnector (Y/* :any */) {
       this.y.db.stopGarbageCollector();
       return this.y.db.whenTransactionsFinished()
     }
+
     repair () {
       this.log('Repairing the state of Yjs. This can happen if messages get lost, and Yjs detects that something is wrong. If this happens often, please report an issue here: https://github.com/y-js/yjs/issues');
-      this.connections.forEach(user => { user.isSynced = false; });
       this.isSynced = false;
-      this.currentSyncTarget = null;
+      this.connections.forEach((user, userId) => {
-      this.findNextSyncTarget();
+        user.isSynced = false;
+        this._syncWithUser(userId);
+      });
     }
+
     setUserId (userId) {
       if (this.userId == null) {
         if (!Number.isInteger(userId)) {
@@ -674,20 +682,21 @@ function extendConnector (Y/* :any */) {
         return null
       }
     }
+
     onUserEvent (f) {
       this.userEventListeners.push(f);
     }
+
     removeUserEventListener (f) {
       this.userEventListeners = this.userEventListeners.filter(g => f !== g);
     }
+
     userLeft (user) {
       if (this.connections.has(user)) {
         this.log('%s: User left %s', this.userId, user);
         this.connections.delete(user);
-        if (user === this.currentSyncTarget) {
+        // check if isSynced event can be sent now
-          this.currentSyncTarget = null;
+        this._setSyncedWith(null);
-          this.findNextSyncTarget();
-        }
         for (var f of this.userEventListeners) {
           f({
             action: 'userLeft',
@@ -696,7 +705,7 @@ function extendConnector (Y/* :any */) {
         }
       }
     }
-    userJoined (user, role) {
+    userJoined (user, role, auth) {
       if (role == null) {
         throw new Error('You must specify the role of the joined user!')
       }
@@ -709,7 +718,7 @@ function extendConnector (Y/* :any */) {
         isSynced: false,
         role: role,
         processAfterAuth: [],
-        auth: null,
+        auth: auth || null,
         receivedSyncStep2: false
       });
       let defer = {};
@@ -722,9 +731,7 @@ function extendConnector (Y/* :any */) {
           role: role
         });
       }
-      if (this.currentSyncTarget == null) {
+      this._syncWithUser(user);
-        this.findNextSyncTarget();
-      }
     }
     // Execute a function _when_ we are connected.
     // If not connected, wait until connected
@@ -735,27 +742,11 @@ function extendConnector (Y/* :any */) {
         this.whenSyncedListeners.push(f);
       }
     }
-    findNextSyncTarget () {
+    _syncWithUser (userid) {
-      if (this.currentSyncTarget != null || this.role === 'slave') {
+      if (this.role === 'slave') {
         return // "The current sync has not finished or this is controlled by a master!"
       }
-
+      sendSyncStep1(this, userid);
-      var syncUser = null;
-      for (var [uid, user] of this.connections) {
-        if (!user.isSynced) {
-          syncUser = uid;
-          break
-        }
-      }
-      var conn = this;
-      if (syncUser != null) {
-        this.currentSyncTarget = syncUser;
-        sendSyncStep1(this, syncUser);
-      } else {
-        if (!conn.isSynced) {
-          conn._fireIsSyncedListeners();
-        }
-      }
     }
     _fireIsSyncedListeners () {
       this.y.db.whenTransactionsFinished().then(() => {
@@ -868,6 +859,7 @@ function extendConnector (Y/* :any */) {
         senderConn.processAfterAuth.push([messageType, senderConn, decoder, encoder, sender]);
       }
     }
+
     computeMessage (messageType, senderConn, decoder, encoder, sender) {
       if (messageType === 'sync step 1' && (senderConn.auth === 'write' || senderConn.auth === 'read')) {
         // cannot wait for sync step 1 to finish, because we may wait for sync step 2 in sync step 1 (->lock)
@@ -881,19 +873,17 @@ function extendConnector (Y/* :any */) {
         return Promise.reject(new Error('Unable to receive message'))
       }
     }
+
     _setSyncedWith (user) {
-      var conn = this.connections.get(user);
+      if (user != null) {
-      if (conn != null) {
+        this.connections.get(user).isSynced = true;
-        conn.isSynced = true;
       }
-      if (user === this.currentSyncTarget) {
+      let conns = Array.from(this.connections.values());
-        this.currentSyncTarget = null;
+      if (conns.length > 0 && conns.every(u => u.isSynced)) {
-        this.findNextSyncTarget();
-      }
-      if (this.role === 'slave' && conn.role === 'master') {
         this._fireIsSyncedListeners();
       }
     }
+
     /*
       Currently, the HB encodes operations as JSON. For the moment I want to keep it
       that way. Maybe we support encoding in the HB as XML in the future, but for now I don't want