Release v11.2.6 (hot fix for #54)

.babelrc

@@ -1,12 +0,0 @@
-{
-  "presets": [
-    ["latest", {
-      "es2015": {
-        "modules": false
-      }
-    }]
-  ],
-  "plugins": [
-    "external-helpers"
-  ]
-}

.gitignore

@@ -1,4 +1,15 @@
 node_modules
 bower_components
-/y.*
+build
-/examples/yjs-dist.js*
+build_test
+.directory
+.codio
+.settings
+.jshintignore
+.jshintrc
+.validate.json
+/y.js
+/y.js.map
+/y-*
+.vscode
+jsconfig.json

.gitmodules

@@ -0,0 +1,4 @@
+[submodule "dist"]
+	path = dist
+	url = https://github.com/y-js/yjs.git
+	branch = dist

README.md

@@ -1,216 +1,133 @@
 
 # ![Yjs](http://y-js.org/images/yjs.png)
 
-Yjs is a framework for offline-first p2p shared editing on structured data like
+Yjs is a framework for optimistic concurrency control and automatic conflict resolution on shared data.
-text, richtext, json, or XML. It is fairly easy to get started, as Yjs hides
+The framework provides similar functionality as [ShareJs] and [OpenCoweb], but supports peer-to-peer
-most of the complexity of concurrent editing. For additional information, demos,
+communication protocols by default. Yjs was designed to handle concurrent actions on arbitrary data
-and tutorials visit [y-js.org](http://y-js.org/).
+like Text, Json, and XML. We also provide support for storing and manipulating your shared data offline.
+For more information and demo applications visit our [homepage](http://y-js.org/).
 
-### Extensions
+You can create you own shared types easily.
-Yjs only knows how to resolve conflicts on shared data. You have to choose a ..
+Therefore, you can design the structure of your custom type,
-* *Connector* - a communication protocol that propagates changes to the clients
+and ensure data validity, while Yjs ensures data consistency (everyone will eventually end up with the same data).
-* *Database* - a database to store your changes
+We already provide abstract data types for
-* one or more *Types* - that represent the shared data
-
-Connectors, Databases, and Types are available as modules that extend Yjs. Here
-is a list of the modules we know of:
-
-##### Connectors
-
-|Name            | Description               |
-|----------------|-----------------------------------|
-|[webrtc](https://github.com/y-js/y-webrtc) | Propagate updates Browser2Browser via WebRTC|
-|[websockets](https://github.com/y-js/y-websockets-client) | Set up [a central server](https://github.com/y-js/y-websockets-client), and connect to it via websockets |
-|[xmpp](https://github.com/y-js/y-xmpp) | Propagate updates in a XMPP multi-user-chat room ([XEP-0045](http://xmpp.org/extensions/xep-0045.html))|
-|[ipfs](https://github.com/ipfs-labs/y-ipfs-connector) | Connector for the [Interplanetary File System](https://ipfs.io/)!|
-|[test](https://github.com/y-js/y-test) | A Connector for testing purposes. It is designed to simulate delays that happen in worst case scenarios|
-
-##### Database adapters
-
-|Name            | Description               |
-|----------------|-----------------------------------|
-|[memory](https://github.com/y-js/y-memory) | In-memory storage. |
-|[indexeddb](https://github.com/y-js/y-indexeddb) | Offline storage for the browser |
-|[leveldb](https://github.com/y-js/y-leveldb) | Persistent storage for node apps |
-
-
-##### Types
 
 | Name     | Description       |
 |----------|-------------------|
 |[map](https://github.com/y-js/y-map) | A shared Map implementation. Maps from text to any stringify-able object |
 |[array](https://github.com/y-js/y-array) | A shared Array implementation |
 |[xml](https://github.com/y-js/y-xml) | An implementation of the DOM. You can create a two way binding to Browser DOM objects |
-|[text](https://github.com/y-js/y-text) | Collaborate on text. Supports two way binding to the [Ace Editor](https://ace.c9.io), [CodeMirror](https://codemirror.net/), [Monaco](https://github.com/Microsoft/monaco-editor), textareas, input elements, and HTML elements (e.g. <*h1*>, or <*p*>) |
+|[text](https://github.com/y-js/y-text) | Collaborate on text. Supports two way binding to textareas, input elements, or HTML elements (e.g. <*h1*>, or <*p*>). Also supports the [Ace Editor](https://ace.c9.io) |
 |[richtext](https://github.com/y-js/y-richtext) | Collaborate on rich text. Supports two way binding to the [Quill Rich Text Editor](http://quilljs.com/)|
 
-##### Other
+Yjs supports P2P message propagation, and is not bound to a specific communication protocol. Therefore, Yjs is extremely scalable and can be used in a wide range of application scenarios.
+
+We support several communication protocols as so called *Connectors*.
+You can create your own connector too - read [this wiki page](https://github.com/y-js/yjs/wiki/Custom-Connectors).
+Currently, we support the following communication protocols:
 
 |Name            | Description               |
-|-----------|-------------------|
+|----------------|-----------------------------------|
-|[y-element](http://y-js.org/y-element/) | Yjs Polymer Element |
+|[xmpp](https://github.com/y-js/y-xmpp) | Propagate updates in a XMPP multi-user-chat room ([XEP-0045](http://xmpp.org/extensions/xep-0045.html))|
+|[webrtc](https://github.com/y-js/y-webrtc) | Propagate updates Browser2Browser via WebRTC|
+|[websockets](https://github.com/y-js/y-websockets-client) | Exchange updates efficiently in the classical client-server model |
+|[test](https://github.com/y-js/y-test) | A Connector for testing purposes. It is designed to simulate delays that happen in worst case scenarios|
+
+You are not limited to use a specific database to store the shared data. We provide the following database adapters:
+
+|Name            | Description               |
+|----------------|-----------------------------------|
+|[memory](https://github.com/y-js/y-memory) | In-memory storage. |
+|[indexeddb](https://github.com/y-js/y-indexeddb) | Offline storage for the browser |
+
+The advantages over similar frameworks are support for
+* .. P2P message propagation and arbitrary communication protocols
+* .. share any type of data. The types provide a convenient interface
+* .. offline support: Changes are stored persistently and only relevant changes are propagated on rejoin
+* .. Intention Preservation: When working on Text, the intention of your changes are preserved. This is particularily important when working offline. Every type has a notion on how we define Intention Preservation on it.
 
 ## Use it!
-Install Yjs, and its modules with [bower](http://bower.io/), or
+Install yjs and its modules with [bower](http://bower.io/), or with [npm](https://www.npmjs.org/package/yjs).
-[npm](https://www.npmjs.org/package/yjs).
 
 ### Bower
 ```
-bower install --save yjs y-array % add all y-* modules you want to use
+bower install yjs --save
 ```
-You only need to include the `y.js` file. Yjs is able to automatically require
+Then you include the libraries directly from the installation folder.
-missing modules.  
 ```
 <script src="./bower_components/yjs/y.js"></script>
 ```
 
 ### Npm
 ```
-npm install --save yjs % add all y-* modules you want to use
+npm install yjs --save
 ```
 
-If you don't include via script tag, you have to explicitly include all modules!
+And use it like this with *npm*:
-(Same goes for other module systems)
 ```
-var Y = require('yjs')
+Y = require("yjs");
-require('y-array')(Y) // add the y-array type to Yjs
-require('y-websockets-client')(Y)
-require('y-memory')(Y)
-require('y-array')(Y)
-require('y-map')(Y)
-require('y-text')(Y)
-// ..
-// do the same for all modules you want to use
-```
-
-### ES6 Syntax
-```
-import Y from 'yjs'
-import yArray from 'y-array'
-import yWebsocketsClient from 'y-webrtc'
-import yMemory from 'y-memory'
-import yArray from 'y-array'
-import yMap from 'y-map'
-import yText from 'y-text'
-// ..
-Y.extend(yArray, yWebsocketsClient, yMemory, yArray, yMap, yText /*, .. */)
 ```
 
 # Text editing example
-Install dependencies
 ```
-bower i yjs y-memory y-webrtc y-array y-text
-```
-
-Here is a simple example of a shared textarea
-```HTML
-  <!DOCTYPE html>
-  <html>
-    <body>
-      <script src="./bower_components/yjs/y.js"></script>
-      <!-- Yjs automatically includes all missing dependencies (browser only) -->
-      <script>
 Y({
   db: {
-            name: 'memory' // use memory database adapter.
+    name: 'memory' // store in memory.
-            // name: 'indexeddb' // use indexeddb database adapter instead for offline apps
+    // name: 'indexeddb'
   },
   connector: {
-            name: 'webrtc', // use webrtc connector
+    name: 'websockets-client', // choose the websockets connector
-            // name: 'websockets-client'
+    // name: 'webrtc'
     // name: 'xmpp'
-            room: 'my-room' // clients connecting to the same room share data
+    room: 'Textarea-example-dev'
   },
-          sourceDir: '/bower_components', // location of the y-* modules (browser only)
+  sourceDir: '/bower_components', // location of the y-* modules
   share: {
-            textarea: 'Text' // y.share.textarea is of type y-text
+    textarea: 'Text' // y.share.textarea is of type Y.Text
   }
+  // types: ['Richtext', 'Array'] // optional list of types you want to import
 }).then(function (y) {
-          // The Yjs instance `y` is available
+  // bind the textarea to a shared text element
-          // y.share.* contains the shared types
+  y.share.textarea.bind(document.getElementById('textfield'))
-
+}
-          // Bind `y.share.textarea` to `<textarea/>`
-          y.share.textarea.bind(document.querySelector('textarea'))
-        })
-      </script>
-      <textarea></textarea>
-    </body>
-  </html>
 ```
 
-## Get Help & Give Help
+# Api
-There are some friendly people on [![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/y-js/yjs?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge) who are eager to help, and answer questions. Please join!
-
-Report _any_ issues to the
-[Github issue page](https://github.com/y-js/yjs/issues)! I try to fix them very
-soon, if possible.
-
-# API
 
 ### Y(options)
-* Y.extend(module1, module2, ..)
-  * Add extensions to Y
-  * `Y.extend(require('y-webrtc'))` has the same semantics as
-    `require('y-webrtc')(Y)`
 * options.db
-  * Will be forwarded to the database adapter. Specify the database adaper on
+  * Will be forwarded to the database adapter. Specify the database adaper on `options.db.name`.
-    `options.db.name`.
+  * Have a look at the used database adapter repository to see all available options.
-  * Have a look at the used database adapter repository to see all available
-    options.
 * options.connector
-  * Will be forwarded to the connector adapter. Specify the connector adaper on
+  * Will be forwarded to the connector adapter. Specify the connector adaper on `options.connector.name`.
-    `options.connector.name`.
+  * All our connectors implement a `room` property. Clients that specify the same room share the same data.
-  * All our connectors implement a `room` property. Clients that specify the
+  * All of our connectors specify an `url` property that defines the connection endpoint of the used connector.
-    same room share the same data.
+    * All of our connectors also have a default connection endpoint that you can use for development. 
-  * All of our connectors specify an `url` property that defines the connection
-    endpoint of the used connector.
-    * All of our connectors also have a default connection endpoint that you can
-      use for development.
-  * Set `options.connector.generateUserId = true` in order to genenerate a
-    userid, instead of receiving one from the server. This way the `Y(..)` is
-    immediately going to be resolved, without waiting for any confirmation from
-    the server. Use with caution.
   * Have a look at the used connector repository to see all available options.
-  * *Only if you know what you are doing:* Set
+* options.sourceDir
-    `options.connector.preferUntransformed = true` in order receive the shared
+  * Path where all y-* modules are stored.
-    data untransformed. This is very efficient as the database content is simply
-    copied to this client. This does only work if this client receives content
-    from only one client.
-* options.sourceDir (browser only)
-  * Path where all y-* modules are stored
   * Defaults to `/bower_components`
   * Not required when running on `nodejs` / `iojs`
-  * When using nodejs you need to manually extend Yjs:
+  * When using browserify you can specify all used modules like this:
 ```
 var Y = require('yjs')
-// you have to require a db, connector, and *all* types you use!
+// you need to require the db, connector, and *all* types you use! 
 require('y-memory')(Y)
 require('y-webrtc')(Y)
 require('y-map')(Y)
 // ..
 ``` 
 * options.share
-  * Specify on `options.share[arbitraryName]` types that are shared among all
+  * Specify on `options.share[arbitraryName]` types that are shared among all users.
-    users.
+  * E.g. Specify `options.share[arbitraryName] = 'Array'` to require y-array and create an Y.Array type on `y.share[arbitraryName]`.
-  * E.g. Specify `options.share[arbitraryName] = 'Array'` to require y-array and
+  * If userA doesn't specify `options.share[arbitraryName]`, it won't be available for userA.
-    create an y-array type on `y.share[arbitraryName]`.
+  * If userB specifies `options.share[arbitraryName]`, it still won't be available for userA. But all the updates are send from userB to userA.
-  * If userA doesn't specify `options.share[arbitraryName]`, it won't be
+  * In contrast to Y.Map, types on `y.share.*` cannot be overwritten or deleted. Instead, they are merged among all users. This feature is only available on `y.share.*`
-    available for userA.
+  * Weird behavior: It is supported that two users specify different types with the same property name.
-  * If userB specifies `options.share[arbitraryName]`, it still won't be
+     E.g. userA specifies `options.share.x = 'Array'`, and userB specifies `options.share.x = 'Text'`. But they'll only share data if they specified the same type with the same property name
-    available for userA. But all the updates are send from userB to userA.
+* options.type
-  * In contrast to y-map, types on `y.share.*` cannot be overwritten or deleted.
+  * Array of modules that Yjs needs to require, before instantiating a shared type.
-    Instead, they are merged among all users. This feature is only available on
+  * By default Yjs requires the specified database adapter, the specified connector, and all modules that are used in `options.share.*`
-    `y.share.*`
-  * Weird behavior: It is supported that two users specify different types with
-    the same property name.
-     E.g. userA specifies `options.share.x = 'Array'`, and userB specifies
-     `options.share.x = 'Text'`. But they only share data if they specified the
-     same type with the same property name
-* options.type (browser only)
-  * Array of modules that Yjs needs to require, before instantiating a shared
-    type.
-  * By default Yjs requires the specified database adapter, the specified
-    connector, and all modules that are used in `options.share.*`
   * Put all types here that you intend to use, but are not used in y.share.*
 
 ### Instantiated Y object (y)
@@ -220,8 +137,7 @@ require('y-map')(Y)
   * The specified database adapter is loaded
   * The specified connector is loaded
   * All types are included
-* The connector is initialized, and a unique user id is set (received from the
+* The connector is initialized, and a unique user id is set (received from the server)
-  server)
   * Note: When using y-indexeddb, a retrieved user id is stored on `localStorage`
 
 The promise returns an instance of Y. We denote it with a lower case `y`.
@@ -239,57 +155,70 @@ The promise returns an instance of Y. We denote it with a lower case `y`.
 * y.connector.disconnect()
   * Force to disconnect this instance from the other instances
 * y.connector.reconnect()
-  * Try to reconnect to the other instances (needs to be supported by the
+  * Try to reconnect to the other instances (needs to be supported by the connector)
-    connector)
   * Not supported by y-xmpp 
-* y.close()
+* y.destroy()
   * Destroy this object.
   * Destroys all types (they will throw weird errors if you still use them)
   * Disconnects from the other instances (via connector)
-  * Returns a promise
-* y.destroy()
-  * calls y.close()
   * Removes all data from the database
-  * Returns a promise
 * y.db.stopGarbageCollector()
-  * Stop the garbage collector. Call y.db.garbageCollect() to continue garbage
+  * Stop the garbage collector. Call y.db.garbageCollect() to continue garbage collection
-    collection
-* y.db.gc :: Boolean
-  * Whether gc is turned on
 * y.db.gcTimeout :: Number (defaults to 50000 ms)
   * Time interval between two garbage collect cycles
-  * It is required that all instances exchanged all messages after two garbage
+  * It is required that all instances exchanged all messages after two garbage collect cycles (after 100000 ms per default)
-    collect cycles (after 100000 ms per default)
 * y.db.userId :: String
   * The used user id for this client. **Never overwrite this**
 
-### Logging
+## Get help
-Yjs uses [debug](https://github.com/visionmedia/debug) for logging. The flag
+There are some friendly people on [![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/y-js/yjs?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge) who may help you with your problem, and answer your questions.
-`y*` enables logging for all y-* components. You can selectively remove
-components you are not interested in: E.g. The flag `y*,-y:connector-message`
-will not log the long `y:connector-message` messages.
 
-##### Enable logging in Node.js
+Please report _any_ issues to the [Github issue page](https://github.com/y-js/yjs/issues)! I try to fix them very soon, if possible.
-```sh
+If you want to see an issue fixed, please subscribe to the thread (or remind me via gitter).
-DEBUG=y* node app.js
-```
 
-Remove the colors in order to log to a file:
-```sh
-DEBUG_COLORS=0 DEBUG=y* node app.js > log
-```
 
-##### Enable logging in the browser
+## Changelog
-```js
+
-localStorage.debug = 'y*'
+### 11.0.0
-```
+
+* **All types now return a single event instead of list of events**
+  * Insert events contain a list of values
+* Improved performance for large insertions & deletions
+* Several bugfixes (offline editing related)
+* Native support for node 4 (see #49)
+
+### 10.0.0
+
+* Support for more complex types (a type can be a composition of several types)
+* Fixes several memory leaks
+
+### 9.0.0
+There were several rolling updates from 0.6 to 0.8. We consider Yjs stable since a long time, 
+and intend to continue stable releases. From this release forward y-* modules will implement peer-dependencies for npm, and dependencies for bower.
+Furthermore, incompatible yjs instances will now throw errors when syncing - this feature was influenced by #48. The versioning jump was influenced by react (see [here](https://facebook.github.io/react/blog/2016/02/19/new-versioning-scheme.html))
+
+
+### 0.6.0
+This is a complete rewrite of the 0.5 version of Yjs. Since Yjs 0.6.0 it is possible to work asynchronously on a persistent database, which enables offline support.
+* Switched to semver versioning
+* Requires a promise implementation in environment (es6 promises suffice, included in all the major browsers). Otherwise you have to include a polyfill
+* Y.Object has been renamed to Y.Map
+* Y.Map exchanges `.val(name [, value])` in favor of `.set(name, value)` and `.get(name)`
+* Y.Map `.get(name)` returns a promise, if the value is a custom type
+* The Connector definition slightly changed (I'll update the wiki)
+* The Type definitions completely changed, so you have to rewrite them (I'll rewrite the article in the wiki)
+* Support for several packaging systems
+* Flowtype
+
 
 ## Contribution
-I created this framework during my bachelor thesis at the chair of computer
+I created this framework during my bachelor thesis at the chair of computer science 5 [(i5)](http://dbis.rwth-aachen.de/cms), RWTH University. Since December 2014 I'm working on Yjs as a part of my student worker job at the i5.
-science 5 [(i5)](http://dbis.rwth-aachen.de/cms), RWTH University. Since
-December 2014 I'm working on Yjs as a part of my student worker job at the i5.
 
 ## License
-Yjs is licensed under the [MIT License](./LICENSE).
+Yjs is licensed under the [MIT License](./LICENSE.txt).
 
 <yjs@dbis.rwth-aachen.de>
+
+[ShareJs]: https://github.com/share/ShareJS
+[OpenCoweb]: https://github.com/opencoweb/coweb/wiki
+

declarations/Structs.js

@@ -0,0 +1,72 @@
+/* @flow */
+
+type UserId = string
+type Id = [UserId, number|string]
+
+/*
+type Struct = {
+  id: Id,
+  left?: Id,
+  right?: Id,
+  target?: Id,
+  struct: 'Insert' | 'Delete'
+}*/
+
+type Struct = Insertion | Deletion
+type Operation = Struct
+
+type Insertion = {
+  id: Id,
+  left: ?Id,
+  origin: ?Id,
+  right: ?Id,
+  parent: Id,
+  parentSub: ?Id,
+  opContent: ?Id,
+  content: ?any,
+  struct: 'Insert'
+}
+
+type Deletion = {
+  target: Id,
+  struct: 'Delete'
+}
+
+type MapStruct = {
+  id: Id,
+  type: TypeNames,
+  map: any
+}
+
+type ListStruct = {
+  id: Id,
+  type: TypeNames,
+  start: Id,
+  end: Id
+}
+
+
+type MessageSyncStep1 = {
+  type: 'sync step 1',
+  deleteSet: any,
+  stateSet: any
+}
+
+type MessageSyncStep2 = {
+  type: 'sync step 2',
+  os: Array<Operation>,
+  deleteSet: any,
+  stateSet: any
+}
+
+type MessageUpdate = {
+  type: 'update',
+  ops: Array<Operation>
+}
+
+type MessageSyncDone = {
+  type: 'sync done'
+}
+
+type Message = MessageSyncStep1 | MessageSyncStep2 | MessageUpdate | MessageSyncDone
+

declarations/Y.js

@@ -0,0 +1,34 @@
+/* @flow */
+
+type YGlobal = {
+	utils: Object,
+	Struct: any,
+	AbstractDatabase: any,
+	AbstractConnector: any,
+	Transaction: any
+}
+
+type YConfig = {
+	db: Object,
+	connector: Object,
+	root: Object
+}
+
+type TypeName = 'array' | 'map' | 'text'
+
+declare var YConcurrency_TestingMode : boolean
+
+type Transaction<A> = Generator<any, A, any>
+
+type SyncRole = 'master' | 'slave'
+
+declare class Store {
+	find: (id:Id) => Transaction<any>;
+	put: (n:any) => Transaction<void>;
+	delete: (id:Id) => Transaction<void>;
+	findWithLowerBound: (start:Id) => Transaction<any>;
+	findWithUpperBound: (end:Id) => Transaction<any>;
+	findNext: (id:Id) => Transaction<any>;
+	findPrev: (id:Id) => Transaction<any>;
+	iterate: (t:any,start:?Id,end:?Id,gen:any) => Transaction<any>;
+}

examples/ace/index.html

@@ -1,32 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <style type="text/css" media="screen">
-    #aceContainer {
-        position: absolute;
-        top: 0;
-        right: 0;
-        bottom: 0;
-        left: 0;
-    }
-    .inserted {
-      position:absolute;
-      z-index:20;
-      background-color: #FFC107;
-    }
-    .deleted {
-      position:absolute;
-      z-index:20;
-      background-color: #FFC107;
-    }
-    </style>
-  </head>
-  <body>
-
-    <div id="aceContainer"></div>
-    <script src="../bower_components/yjs/y.js"></script>
-    <script src="../bower_components/ace-builds/src/ace.js"></script>
-
-    <script src="./index.js"></script>
-  </body>
-</html>

examples/ace/index.js

@@ -1,24 +0,0 @@
-/* global Y, ace */
-
-Y({
-  db: {
-    name: 'memory'
-  },
-  connector: {
-    name: 'websockets-client',
-    room: 'ace-example'
-  },
-  sourceDir: '/bower_components',
-  share: {
-    ace: 'Text' // y.share.textarea is of type Y.Text
-  }
-}).then(function (y) {
-  window.yAce = y
-
-  // bind the textarea to a shared text element
-  var editor = ace.edit('aceContainer')
-  editor.setTheme('ace/theme/chrome')
-  editor.getSession().setMode('ace/mode/javascript')
-
-  y.share.ace.bindAce(editor)
-})

examples/bower.json

@@ -1,19 +0,0 @@
-{
-  "name": "yjs-examples",
-  "version": "0.0.0",
-  "homepage": "y-js.org",
-  "authors": [
-    "Kevin Jahns <kevin.jahns@rwth-aachen.de>"
-  ],
-  "description": "Examples for Yjs",
-  "license": "MIT",
-  "ignore": [],
-  "dependencies": {
-    "quill": "^1.0.0-rc.2",
-    "ace": "~1.2.3",
-    "ace-builds": "~1.2.3",
-    "jquery": "~2.2.2",
-    "d3": "^3.5.16",
-    "codemirror": "^5.25.0"
-  }
-}

examples/chat/index.html

@@ -1,23 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <body>
-    <style>
-      #chat p span {
-        color: blue;
-      }
-    </style>
-    <div id="chat"></div>
-    <form id="chatform">
-      <input name="username" type="text" style="width:15%;">
-      <input name="message" type="text" style="width:60%;">
-      <input type="submit" value="Send">
-    </form>
-    <script src="../../y.js"></script>
-    <script src="../../../y-array/y-array.js"></script>
-    <script src="../../../y-map/dist/y-map.js"></script>
-    <script src="../../../y-text/dist/y-text.js"></script>
-    <script src="../../../y-memory/y-memory.js"></script>
-    <script src="../../../y-websockets-client/dist/y-websockets-client.js"></script>
-    <script src="./index.js"></script>
-  </body>
-</html>

examples/chat/index.js

@@ -1,73 +0,0 @@
-/* global Y, chat */
-
-// initialize a shared object. This function call returns a promise!
-Y({
-  db: {
-    name: 'memory'
-  },
-  connector: {
-    name: 'websockets-client',
-    room: 'chat-example'
-  },
-  sourceDir: '/bower_components',
-  share: {
-    chat: 'Array'
-  }
-}).then(function (y) {
-  window.yChat = y
-  // This functions inserts a message at the specified position in the DOM
-  function appendMessage (message, position) {
-    var p = document.createElement('p')
-    var uname = document.createElement('span')
-    uname.appendChild(document.createTextNode(message.username + ': '))
-    p.appendChild(uname)
-    p.appendChild(document.createTextNode(message.message))
-    document.querySelector('#chat').insertBefore(p, chat.children[position] || null)
-  }
-  // This function makes sure that only 7 messages exist in the chat history.
-  // The rest is deleted
-  function cleanupChat () {
-    if (y.share.chat.length > 7) {
-      y.share.chat.delete(0, y.chat.length - 7)
-    }
-  }
-  // Insert the initial content
-  y.share.chat.toArray().forEach(appendMessage)
-  cleanupChat()
-
-  // whenever content changes, make sure to reflect the changes in the DOM
-  y.share.chat.observe(function (event) {
-    if (event.type === 'insert') {
-      for (let i = 0; i < event.length; i++) {
-        appendMessage(event.values[i], event.index + i)
-      }
-    } else if (event.type === 'delete') {
-      for (let i = 0; i < event.length; i++) {
-        chat.children[event.index].remove()
-      }
-    }
-    // concurrent insertions may result in a history > 7, so cleanup here
-    cleanupChat()
-  })
-  document.querySelector('#chatform').onsubmit = function (event) {
-    // the form is submitted
-    var message = {
-      username: this.querySelector('[name=username]').value,
-      message: this.querySelector('[name=message]').value
-    }
-    if (message.username.length > 0 && message.message.length > 0) {
-      if (y.share.chat.length > 6) {
-        // If we are goint to insert the 8th element, make sure to delete first.
-        y.share.chat.delete(0)
-      }
-      // Here we insert a message in the shared chat type.
-      // This will call the observe function (see line 40)
-      // and reflect the change in the DOM
-      y.share.chat.push([message])
-      this.querySelector('[name=message]').value = ''
-    }
-    // Do not send this form!
-    event.preventDefault()
-    return false
-  }
-})

examples/codemirror/index.html

@@ -1,23 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-  </head>
-  <body>
-    <div id="codeMirrorContainer"></div>
-
-    <script src="../bower_components/yjs/y.js"></script>
-    <script src="../bower_components/codemirror/lib/codemirror.js"></script>
-    <script src="../bower_components/codemirror/mode/javascript/javascript.js"></script>
-    <link rel="stylesheet" href="../bower_components/codemirror/lib/codemirror.css">
-    <style>
-      .CodeMirror {
-        position: fixed;
-        top: 0;
-        left: 0;
-        height: 100%;
-        width: 100%;
-      }
-    </style>
-    <script src="./index.js"></script>
-  </body>
-</html>

examples/codemirror/index.js

@@ -1,24 +0,0 @@
-/* global Y, CodeMirror */
-
-// initialize a shared object. This function call returns a promise!
-Y({
-  db: {
-    name: 'memory'
-  },
-  connector: {
-    name: 'websockets-client',
-    room: 'codemirror-example'
-  },
-  sourceDir: '/bower_components',
-  share: {
-    codemirror: 'Text' // y.share.codemirror is of type Y.Text
-  }
-}).then(function (y) {
-  window.yCodeMirror = y
-
-  var editor = CodeMirror(document.querySelector('#codeMirrorContainer'), {
-    mode: 'javascript',
-    lineNumbers: true
-  })
-  y.share.codemirror.bindCodeMirror(editor)
-})

examples/drawing/index.html

@@ -1,23 +0,0 @@
-<!DOCTYPE html>
-<html>
-<body>
-  <style>
-    path {
-      fill: none;
-      stroke: blue;
-      stroke-width: 1px;
-      stroke-linejoin: round;
-      stroke-linecap: round;
-    }
-  </style>
-  <button type="button" id="clearDrawingCanvas">Clear Drawing</button>
-  <svg id="drawingCanvas" viewbox="0 0 100 100" width="100%"></svg>
-  <script src="../../y.js"></script>
-  <script src="../../../y-array/y-array.js"></script>
-  <script src="../../../y-map/dist/y-map.js"></script>
-  <script src="../../../y-memory/y-memory.js"></script>
-  <script src="../../../y-websockets-client/y-websockets-client.js"></script>
-  <script src="../bower_components/d3/d3.js"></script>
-  <script src="./index.js"></script>
-</body>
-</html>

examples/drawing/index.js

@@ -1,84 +0,0 @@
-/* globals Y, d3 */
-'strict mode'
-
-Y({
-  db: {
-    name: 'memory'
-  },
-  connector: {
-    name: 'websockets-client',
-    room: 'drawing-example',
-    url: 'localhost:1234'
-  },
-  sourceDir: '/bower_components',
-  share: {
-    drawing: 'Array'
-  }
-}).then(function (y) {
-  window.yDrawing = y
-  var drawing = y.share.drawing
-  var renderPath = d3.svg.line()
-    .x(function (d) { return d[0] })
-    .y(function (d) { return d[1] })
-    .interpolate('basis')
-
-  var svg = d3.select('#drawingCanvas')
-    .call(d3.behavior.drag()
-      .on('dragstart', dragstart)
-      .on('drag', drag)
-      .on('dragend', dragend))
-
-  // create line from a shared array object and update the line when the array changes
-  function drawLine (yarray) {
-    var line = svg.append('path').datum(yarray.toArray())
-    line.attr('d', renderPath)
-    yarray.observe(function (event) {
-      // we only implement insert events that are appended to the end of the array
-      event.values.forEach(function (value) {
-        line.datum().push(value)
-      })
-      line.attr('d', renderPath)
-    })
-  }
-  // call drawLine every time an array is appended
-  y.share.drawing.observe(function (event) {
-    if (event.type === 'insert') {
-      event.values.forEach(drawLine)
-    } else {
-      // just remove all elements (thats what we do anyway)
-      svg.selectAll('path').remove()
-    }
-  })
-  // draw all existing content
-  for (var i = 0; i < drawing.length; i++) {
-    drawLine(drawing.get(i))
-  }
-
-  // clear canvas on request
-  document.querySelector('#clearDrawingCanvas').onclick = function () {
-    drawing.delete(0, drawing.length)
-  }
-
-  var sharedLine = null
-  function dragstart () {
-    drawing.insert(drawing.length, [Y.Array])
-    sharedLine = drawing.get(drawing.length - 1)
-  }
-
-  // After one dragged event is recognized, we ignore them for 33ms.
-  var ignoreDrag = null
-  function drag () {
-    if (sharedLine != null && ignoreDrag == null) {
-      ignoreDrag = window.setTimeout(function () {
-        ignoreDrag = null
-      }, 33)
-      sharedLine.push([d3.mouse(this)])
-    }
-  }
-
-  function dragend () {
-    sharedLine = null
-    window.clearTimeout(ignoreDrag)
-    ignoreDrag = null
-  }
-})

examples/html-editor/index.html

@@ -1,11 +0,0 @@
-<!DOCTYPE html>
-<html>
-</head>
-  <!-- jquery is not required for y-xml. It is just here for convenience, and to test batch operations. -->
-  <script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
-  <script src="../yjs-dist.js"></script>
-  <script src="./index.js"></script>
-</head>
-<body contenteditable="true">
-</body>
-</html>

examples/html-editor/index.js

@@ -1,21 +0,0 @@
-/* global Y */
-
-// initialize a shared object. This function call returns a promise!
-Y({
-  db: {
-    name: 'memory'
-  },
-  connector: {
-    name: 'websockets-client',
-    // url: 'http://127.0.0.1:1234',
-    url: 'http://192.168.178.81:1234',
-    room: 'html-editor-example6'
-  },
-  share: {
-    xml: 'XmlFragment()' // y.share.xml is of type Y.Xml with tagname "p"
-  }
-}).then(function (y) {
-  window.yXml = y
-  // Bind children of XmlFragment to the document.body
-  window.yXml.share.xml.bindToDom(document.body)
-})

examples/infiniteyjs/index.html

@@ -1,58 +0,0 @@
-<!DOCTYPE html>
-<html>
-<body>
-  <style>
-    .wrapper {
-      display: grid;
-      grid-template-columns: repeat(3, 1fr);
-      grid-gap: 7px;
-    }
-    .one {
-      grid-column: 1 ;
-    }
-    .two { 
-      grid-column: 2;
-    }
-    .three {
-      grid-column: 3;
-    }
-    textarea {
-      width: calc(100% - 10px)
-    }
-    .editor-container {
-      background-color: #4caf50;
-      padding: 4px 5px 10px 5px;
-      border-radius: 11px;
-    }
-    .editor-container[disconnected] {
-      background-color: red;
-    }
-    .disconnected-info {
-      display: none;
-    }
-    .editor-container[disconnected] .disconnected-info {
-      display: inline;
-    }
-  </style>
-  <div class="wrapper">
-    <div id="container1" class="one editor-container">
-      <h1>Server 1 <span class="disconnected-info">(disconnected)</span></h1>
-      <textarea id="textarea1" rows=40 autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"></textarea>
-    </div>
-    <div id="container2" class="two editor-container">
-      <h1>Server 2 <span class="disconnected-info">(disconnected)</span></h1>
-      <textarea id="textarea2" rows=40 autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"></textarea>
-    </div>
-    <div id="container3" class="three editor-container">
-      <h1>Server 3 <span class="disconnected-info">(disconnected)</span></h1>
-      <textarea id="textarea3" rows=40 autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"></textarea>
-    </div>
-  </div>
-  <script src="../../y.js"></script>
-  <script src="../../../y-array/y-array.js"></script>
-  <script src="../../../y-text/dist/y-text.js"></script>
-  <script src="../../../y-memory/y-memory.js"></script>
-  <script src="../../../y-websockets-client/y-websockets-client.js"></script>
-  <script src="./index.js"></script>
-</body>
-</html>

examples/infiniteyjs/index.js

@@ -1,64 +0,0 @@
-/* global Y */
-
-Y({
-  db: {
-    name: 'memory'
-  },
-  connector: {
-    name: 'websockets-client',
-    room: 'Textarea-example',
-    url: 'https://yjs-v13.herokuapp.com/'
-  },
-  share: {
-    textarea: 'Text'
-  }
-}).then(function (y) {
-  window.y1 = y
-  y.share.textarea.bind(document.getElementById('textarea1'))
-})
-
-Y({
-  db: {
-    name: 'memory'
-  },
-  connector: {
-    name: 'websockets-client',
-    room: 'Textarea-example',
-    url: 'https://yjs-v13-second.herokuapp.com/'
-  },
-  share: {
-    textarea: 'Text'
-  }
-}).then(function (y) {
-  window.y2 = y
-  y.share.textarea.bind(document.getElementById('textarea2'))
-  y.connector.socket.on('connection', function () {
-    document.getElementById('container2').removeAttribute('disconnected')
-  })
-  y.connector.socket.on('disconnect', function () {
-    document.getElementById('container2').setAttribute('disconnected', true)
-  })
-})
-
-Y({
-  db: {
-    name: 'memory'
-  },
-  connector: {
-    name: 'websockets-client',
-    room: 'Textarea-example',
-    url: 'https://yjs-v13-third.herokuapp.com/'
-  },
-  share: {
-    textarea: 'Text'
-  }
-}).then(function (y) {
-  window.y3 = y
-  y.share.textarea.bind(document.getElementById('textarea3'))
-  y.connector.socket.on('connection', function () {
-    document.getElementById('container3').removeAttribute('disconnected')
-  })
-  y.connector.socket.on('disconnect', function () {
-    document.getElementById('container3').setAttribute('disconnected', true)
-  })
-})

examples/jigsaw/index.html

@@ -1,26 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <style type="text/css">
-    .draggable {
-      cursor: move;
-    }
-  </style>
-</head>
-<body>
-  <svg id="puzzle-example" width="100%" viewBox="0 0 800 800">
-    <g>
-      <path d="M 311.76636,154.23389 C 312.14136,171.85693 318.14087,184.97998 336.13843,184.23047 C 354.13647,183.48047 351.88647,180.48096 354.88599,178.98096 C 357.8855,177.48096 368.38452,170.35693 380.00806,169.98193 C 424.61841,168.54297 419.78296,223.6001 382.25757,223.6001 C 377.75806,223.6001 363.51001,219.10107 356.38599,211.97656 C 349.26196,204.85254 310.64185,207.10254 314.76636,236.34863 C 316.34888,247.5708 324.08374,267.90723 324.84595,286.23486 C 325.29321,296.99414 323.17603,307.00635 321.58911,315.6377 C 360.11353,305.4585 367.73462,304.30518 404.00513,312.83936 C 410.37915,314.33887 436.62573,310.21436 421.25269,290.3418 C 405.87964,270.46924 406.25464,248.34717 417.12817,240.84814 C 428.00171,233.34912 446.74976,228.84961 457.99829,234.09912 C 469.24683,239.34814 484.61987,255.84619 475.24585,271.59424 C 465.87231,287.34229 452.74878,290.7168 456.49829,303.84033 C 460.2478,316.96387 479.74536,320.33838 500.74292,321.83789 C 509.70142,322.47803 527.97192,323.28467 542.10864,320.12939 C 549.91821,318.38672 556.92212,315.89502 562.46753,313.56396 C 561.40796,277.80664 560.84888,245.71729 560.3606,241.97314 C 558.85278,230.41455 542.49536,217.28564 525.86499,223.2251 C 520.61548,225.1001 519.86548,231.84912 505.24243,232.59912 C 444.92798,235.69238 462.06958,143.26709 525.86499,180.48096 C 539.52759,188.45068 575.19409,190.7583 570.10913,156.85889 C 567.85962,141.86035 553.98608,102.86523 553.98608,102.86523 C 553.98608,102.86523 477.23755,111.82227 451.99878,91.991699 C 441.50024,83.74292 444.87476,69.494629 449.37427,61.245605 C 453.87378,52.996582 465.12231,46.622559 464.74731,36.123779 C 463.02563,-12.086426 392.96704,-10.902832 396.5061,36.873535 C 397.25562,46.997314 406.62964,52.621582 410.75415,60.495605 C 420.00757,78.161377 405.50024,96.073486 384.50757,99.490723 C 377.36206,100.65381 349.17505,102.65332 320.39429,102.23486 C 319.677,102.22461 318.95923,102.21143 318.24194,102.19775 C 315.08423,120.9751 311.55688,144.39697 311.76636,154.23389 z " style="fill:#f2c569;stroke:#000000" id="path2502"/>
-      <path d="M 500.74292,321.83789 C 479.74536,320.33838 460.2478,316.96387 456.49829,303.84033 C 452.74878,290.7168 465.87231,287.34229 475.24585,271.59424 C 484.61987,255.84619 469.24683,239.34814 457.99829,234.09912 C 446.74976,228.84961 428.00171,233.34912 417.12817,240.84814 C 406.25464,248.34717 405.87964,270.46924 421.25269,290.3418 C 436.62573,310.21436 410.37915,314.33887 404.00513,312.83936 C 367.73462,304.30518 360.11353,305.4585 321.58911,315.6377 C 320.56372,321.21484 319.75854,326.2207 320.01538,330.46191 C 320.76538,342.83545 329.3894,385.95508 327.8894,392.7041 C 326.3894,399.45312 313.64136,418.20117 297.89331,407.32715 C 282.14526,396.45361 276.52075,393.4541 265.27222,394.5791 C 254.02368,395.70361 239.77563,402.07812 239.77563,419.32568 C 239.77563,436.57373 250.27417,449.69727 268.64673,447.82227 C 287.36353,445.9126 317.92163,423.11035 325.63989,452.69678 C 330.1394,469.94434 330.51392,487.19238 330.1394,498.44092 C 329.95825,503.87646 326.09985,518.06592 322.16089,531.28125 C 353.2854,532.73682 386.47095,531.26611 394.2561,529.93701 C 430.30933,523.78174 429.31909,496.09766 412.62866,477.44385 C 406.25464,470.31934 401.75513,455.32129 405.87964,444.82275 C 414.07056,423.97314 458.8064,422.17773 473.37134,438.82324 C 483.86987,450.82178 475.99585,477.44385 468.49683,482.69287 C 453.52222,493.17529 457.22485,516.83008 473.37134,528.06201 C 504.79126,549.91943 572.35913,535.56152 572.35913,535.56152 C 572.35913,535.56152 567.85962,498.06592 567.48462,471.81934 C 567.10962,445.57275 589.60669,450.07227 593.3562,450.07227 C 597.10571,450.07227 604.22974,455.32129 609.47925,459.4458 C 614.72876,463.57031 618.85327,469.94434 630.85181,470.69434 C 677.43726,473.60596 674.58813,420.7373 631.97632,413.32666 C 623.35229,411.82666 614.72876,416.32617 603.10522,424.57519 C 591.48169,432.82422 577.23315,425.32519 570.10913,417.45117 C 566.07788,412.99561 563.8479,360.16406 562.46753,313.56396 C 556.92212,315.89502 549.91821,318.38672 542.10864,320.12939 C 527.97192,323.28467 509.70142,322.47803 500.74292,321.83789 z " style="fill:#f3f3d6;stroke:#000000" id="path2504"/>
-      <path d="M 240.52563,141.86035 C 257.60327,159.6499 243.94507,188.68799 214.65356,190.22949 C 185.09448,191.78516 164.66675,157.17822 190.28589,136.61621 C 200.49585,128.42139 198.05786,114.12158 179.78296,106.98975 C 154.4187,97.091553 90.54419,107.73975 90.54419,107.73975 C 90.54419,107.73975 100.88794,135.11328 101.41772,168.48242 C 101.79272,192.104 68.796875,189.47949 63.172607,186.85498 C 57.54834,184.23047 45.924805,173.73145 37.675781,173.73145 C -14.411865,173.73145 -10.013184,245.84375 39.925537,232.22412 C 48.174316,229.97461 56.42334,220.97559 68.796875,222.47559 C 81.17041,223.9751 87.544434,232.59912 87.544434,246.09766 C 87.544434,252.51709 87.0354,281.24268 86.340576,312.87012 C 119.15894,313.67676 160.60962,314.46582 170.03442,313.58887 C 186.15698,312.08936 195.90601,301.59033 188.40698,293.3418 C 180.90796,285.09277 156.16089,256.59619 179.03296,239.34814 C 201.90503,222.10059 235.65112,231.84912 239.77563,247.22217 C 243.90015,262.59521 240.52563,273.46924 234.90112,279.09326 C 229.27661,284.71777 210.52905,298.96582 221.40259,308.71484 C 232.27661,318.46338 263.77222,330.83691 302.39282,320.71338 C 309.58862,318.82715 315.92114,317.13525 321.58911,315.6377 C 323.17603,307.00635 325.29321,296.99414 324.84595,286.23486 C 324.08374,267.90723 316.34888,247.5708 314.76636,236.34863 C 310.64185,207.10254 349.26196,204.85254 356.38599,211.97656 C 363.51001,219.10107 377.75806,223.6001 382.25757,223.6001 C 419.78296,223.6001 424.61841,168.54297 380.00806,169.98193 C 368.38452,170.35693 357.8855,177.48096 354.88599,178.98096 C 351.88647,180.48096 354.13647,183.48047 336.13843,184.23047 C 318.14087,184.97998 312.14136,171.85693 311.76636,154.23389 C 311.55688,144.39697 315.08423,120.9751 318.24194,102.19775 C 290.37524,101.67725 262.46069,98.968262 254.39868,97.991211 C 233.38013,95.443359 217.17456,117.53662 240.52563,141.86035 z " style="fill:#bebcdb;stroke:#000000" id="path2506"/>
-      <path d="M 325.63989,452.69678 C 317.92163,423.11035 287.36353,445.9126 268.64673,447.82227 C 250.27417,449.69727 239.77563,436.57373 239.77563,419.32568 C 239.77563,402.07812 254.02368,395.70361 265.27222,394.5791 C 276.52075,393.4541 282.14526,396.45361 297.89331,407.32715 C 313.64136,418.20117 326.3894,399.45313 327.8894,392.7041 C 329.3894,385.95508 320.76538,342.83545 320.01538,330.46191 C 319.75855,326.2207 320.56372,321.21484 321.58911,315.6377 C 315.92114,317.13525 309.58862,318.82715 302.39282,320.71338 C 263.77222,330.83691 232.27661,318.46338 221.40259,308.71484 C 210.52905,298.96582 229.27661,284.71777 234.90112,279.09326 C 240.52563,273.46924 243.90015,262.59521 239.77563,247.22217 C 235.65112,231.84912 201.90503,222.10059 179.03296,239.34814 C 156.16089,256.59619 180.90796,285.09277 188.40698,293.3418 C 195.90601,301.59033 186.15698,312.08936 170.03442,313.58887 C 160.60962,314.46582 119.15894,313.67676 86.340576,312.87012 C 85.573975,347.74561 84.581299,386.15088 83.794922,402.07812 C 82.295166,432.44922 109.29175,422.32568 115.66577,420.82568 C 122.04028,419.32568 126.16479,409.57715 143.03735,408.45215 C 185.9231,405.59326 186.09985,466.69629 144.16235,467.69482 C 128.41431,468.06982 113.79126,451.19678 108.16675,447.44727 C 102.54272,443.69775 87.919433,442.94775 83.794922,457.9458 C 82.01709,464.41113 78.118652,481.65137 78.098144,496.18994 C 78.071045,515.38037 82.295166,531.81201 82.295166,531.81201 C 82.295166,531.81201 105.54224,526.5625 149.41187,526.5625 C 193.28149,526.5625 199.65552,547.93506 194.78101,558.80859 C 189.90649,569.68213 181.28296,568.93213 179.40796,583.18066 C 172.7063,634.11133 253.34106,631.08203 249.14917,584.68018 C 247.96948,571.62354 237.16528,571.66699 232.27661,557.68359 C 222.17944,528.80273 244.64966,523.56299 257.39819,524.68799 C 263.59351,525.23437 290.95679,529.73389 320.75757,531.21582 C 321.22437,531.23877 321.69312,531.25928 322.16089,531.28125 C 326.09985,518.06592 329.95825,503.87646 330.1394,498.44092 C 330.51392,487.19238 330.1394,469.94434 325.63989,452.69678 z " style="fill:#d3ea9d;stroke:#000000" id="path2508"/>
-		</g>
-  </svg>
-  <script src="../../y.js"></script>
-  <script src="../../../y-map/dist/y-map.js"></script>
-  <script src="../../../y-memory/y-memory.js"></script>
-  <script src="../../../y-websockets-client/y-websockets-client.js"></script>
-  <script src="../bower_components/d3/d3.js"></script>
-  <script src="./index.js"></script>
-</body>
-</html>

examples/jigsaw/index.js

@@ -1,74 +0,0 @@
-/* @flow */
-/* global Y, d3 */
-
-// initialize a shared object. This function call returns a promise!
-Y({
-  db: {
-    name: 'memory'
-  },
-  connector: {
-    name: 'websockets-client',
-    room: 'Puzzle-example',
-    url: 'http://localhost:1234'
-  },
-  share: {
-    piece1: 'Map',
-    piece2: 'Map',
-    piece3: 'Map',
-    piece4: 'Map'
-  }
-}).then(function (y) {
-  window.yJigsaw = y
-  var origin // mouse start position - translation of piece
-  var drag = d3.behavior.drag()
-    .on('dragstart', function (params) {
-      // get the translation of the element
-      var translation = d3
-        .select(this)
-        .attr('transform')
-        .slice(10, -1)
-        .split(',')
-        .map(Number)
-      // mouse coordinates
-      var mouse = d3.mouse(this.parentNode)
-      origin = {
-        x: mouse[0] - translation[0],
-        y: mouse[1] - translation[1]
-      }
-    })
-    .on('drag', function () {
-      var mouse = d3.mouse(this.parentNode)
-      var x = mouse[0] - origin.x // =^= mouse - mouse at dragstart + translation at dragstart
-      var y = mouse[1] - origin.y
-      d3.select(this).attr('transform', 'translate(' + x + ',' + y + ')')
-    })
-    .on('dragend', function (piece, i) {
-      // save the current translation of the puzzle piece
-      var mouse = d3.mouse(this.parentNode)
-      var x = mouse[0] - origin.x
-      var y = mouse[1] - origin.y
-      piece.set('translation', {x: x, y: y})
-    })
-
-  var data = [y.share.piece1, y.share.piece2, y.share.piece3, y.share.piece4]
-  var pieces = d3.select(document.querySelector('#puzzle-example')).selectAll('path').data(data)
-
-  pieces
-    .classed('draggable', true)
-    .attr('transform', function (piece) {
-      var translation = piece.get('translation') || {x: 0, y: 0}
-      return 'translate(' + translation.x + ',' + translation.y + ')'
-    }).call(drag)
-
-  data.forEach(function (piece) {
-    piece.observe(function () {
-      // whenever a property of a piece changes, update the translation of the pieces
-      pieces
-        .transition()
-        .attr('transform', function (piece) {
-          var translation = piece.get('translation') || {x: 0, y: 0}
-          return 'translate(' + translation.x + ',' + translation.y + ')'
-        })
-    })
-  })
-})

examples/monaco/index.html

@@ -1,24 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-  </head>
-  <body>
-    <div id="monacoContainer"></div>
-    <style>
-      #monacoContainer {
-        position: fixed;
-        top: 0;
-        left: 0;
-        height: 100%;
-        width: 100%;
-      }
-    </style>
-    <script src="../bower_components/yjs/y.js"></script>
-    <script src="../bower_components/y-array/y-array.js"></script>
-    <script src="../bower_components/y-text/y-text.js"></script>
-    <script src="../bower_components/y-websockets-client/y-websockets-client.js"></script>
-    <script src="../bower_components/y-memory/y-memory.js"></script>
-    <script src="../node_modules/monaco-editor/min/vs/loader.js"></script>
-    <script src="./index.js"></script>
-  </body>
-</html>

examples/monaco/index.js

@@ -1,30 +0,0 @@
-/* global Y, monaco */
-
-require.config({ paths: { 'vs': '../node_modules/monaco-editor/min/vs' } })
-
-require(['vs/editor/editor.main'], function () {
-  // Initialize a shared object. This function call returns a promise!
-  Y({
-    db: {
-      name: 'memory'
-    },
-    connector: {
-      name: 'websockets-client',
-      room: 'monaco-example'
-    },
-    sourceDir: '/bower_components',
-    share: {
-      monaco: 'Text' // y.share.monaco is of type Y.Text
-    }
-  }).then(function (y) {
-    window.yMonaco = y
-
-    // Create Monaco editor
-    var editor = monaco.editor.create(document.getElementById('monacoContainer'), {
-      language: 'javascript'
-    })
-
-    // Bind to y.share.monaco
-    y.share.monaco.bindMonaco(editor)
-  })
-})

examples/package.json

@@ -1,20 +0,0 @@
-{
-  "name": "examples",
-  "version": "0.0.0",
-  "description": "",
-  "scripts": {
-    "dist": "rollup -c",
-    "watch": "rollup -cw"
-  },
-  "author": "Kevin Jahns",
-  "license": "MIT",
-  "dependencies": {
-    "monaco-editor": "^0.8.3"
-  },
-  "devDependencies": {
-    "standard": "^10.0.2"
-  },
-  "standard": {
-    "ignore": ["bower_components"]
-  }
-}

examples/quill/index.html

@@ -1,35 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <!-- quill does not include dist files! We are using the hosted version instead -->
-  <!--link rel="stylesheet" href="../bower_components/quill/dist/quill.snow.css" /-->
-  <link href="https://cdn.quilljs.com/1.0.4/quill.snow.css" rel="stylesheet">
-  <link href="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.5.1/katex.min.css" rel="stylesheet">
-  <link href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.2.0/styles/monokai-sublime.min.css" rel="stylesheet">
-  <style>
-    #quill-container {
-      border: 1px solid gray;
-      box-shadow: 0px 0px 10px gray;
-    }
-  </style>
-</head>
-<body>
-  <div id="quill-container">
-    <div id="quill">
-    </div>
-  </div>
-
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.5.1/katex.min.js" type="text/javascript"></script>
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.2.0/highlight.min.js" type="text/javascript"></script>
-  <script src="https://cdn.quilljs.com/1.0.4/quill.js"></script>
-  <!-- quill does not include dist files! We are using the hosted version instead (see above)
-  <script src="../bower_components/quill/dist/quill.js"></script>
-  -->
-  <script src="../../y.js"></script>
-  <script src="../../../y-array/y-array.js"></script>
-  <script src="../../../y-richtext/dist/y-richtext.js"></script>
-  <script src="../../../y-memory/y-memory.js"></script>
-  <script src="../../../y-websockets-client/y-websockets-client.js"></script>
-  <script src="./index.js"></script>
-</body>
-</html>

examples/quill/index.js

@@ -1,40 +0,0 @@
-/* global Y, Quill */
-
-// initialize a shared object. This function call returns a promise!
-
-Y({
-  db: {
-    name: 'memory'
-  },
-  connector: {
-    name: 'websockets-client',
-    room: 'richtext-example-quill-1.0-test',
-    url: 'http://localhost:1234'
-  },
-  sourceDir: '/bower_components',
-  share: {
-    richtext: 'Richtext' // y.share.richtext is of type Y.Richtext
-  }
-}).then(function (y) {
-  window.yQuill = y
-
-  // create quill element
-  window.quill = new Quill('#quill', {
-    modules: {
-      formula: true,
-      syntax: true,
-      toolbar: [
-        [{ size: ['small', false, 'large', 'huge'] }],
-        ['bold', 'italic', 'underline'],
-        [{ color: [] }, { background: [] }],    // Snow theme fills in values
-        [{ script: 'sub' }, { script: 'super' }],
-        ['link', 'image'],
-        ['link', 'code-block'],
-        [{ list: 'ordered' }]
-      ]
-    },
-    theme: 'snow'
-  })
-  // bind quill to richtext type
-  y.share.richtext.bind(window.quill)
-})

examples/rollup.config.js

@@ -1,27 +0,0 @@
-import nodeResolve from 'rollup-plugin-node-resolve'
-import commonjs from 'rollup-plugin-commonjs'
-
-var pkg = require('./package.json')
-
-export default {
-  entry: 'yjs-dist.esm',
-  dest: 'yjs-dist.js',
-  moduleName: 'Y',
-  format: 'umd',
-  plugins: [
-    nodeResolve({
-      main: true,
-      module: true,
-      browser: true
-    }),
-    commonjs()
-  ],
-  sourceMap: true,
-  banner: `
-/**
- * ${pkg.name} - ${pkg.description}
- * @version v${pkg.version}
- * @license ${pkg.license}
- */
-`
-}

examples/serviceworker/index.html

@@ -1,31 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <!-- quill does not include dist files! We are using the hosted version instead -->
-  <!--link rel="stylesheet" href="../bower_components/quill/dist/quill.snow.css" /-->
-  <link href="https://cdn.quilljs.com/1.0.4/quill.snow.css" rel="stylesheet">
-  <link href="//cdnjs.cloudflare.com/ajax/libs/KaTeX/0.5.1/katex.min.css" rel="stylesheet">
-  <link href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.2.0/styles/monokai-sublime.min.css" rel="stylesheet">
-  <style>
-    #quill-container {
-      border: 1px solid gray;
-      box-shadow: 0px 0px 10px gray;
-    }
-  </style>
-</head>
-<body>
-  <div id="quill-container">
-    <div id="quill">
-    </div>
-  </div>
-
-  <script src="//cdnjs.cloudflare.com/ajax/libs/KaTeX/0.5.1/katex.min.js" type="text/javascript"></script>
-  <script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.2.0/highlight.min.js" type="text/javascript"></script>
-  <script src="https://cdn.quilljs.com/1.0.4/quill.js"></script>
-  <!-- quill does not include dist files! We are using the hosted version instead (see above)
-  <script src="../bower_components/quill/dist/quill.js"></script>
-  -->
-  <script src="../bower_components/yjs/y.js"></script>
-  <script src="./index.js"></script>
-</body>
-</html>

examples/serviceworker/index.js

@@ -1,49 +0,0 @@
-/* global Y, Quill */
-
-// register yjs service worker
-if ('serviceWorker' in navigator) {
-  // Register service worker
-  // it is important to copy yjs-sw-template to the root directory!
-  navigator.serviceWorker.register('./yjs-sw-template.js').then(function (reg) {
-    console.log('Yjs service worker registration succeeded. Scope is ' + reg.scope)
-  }).catch(function (err) {
-    console.error('Yjs service worker registration failed with error ' + err)
-  })
-}
-
-// initialize a shared object. This function call returns a promise!
-Y({
-  db: {
-    name: 'memory'
-  },
-  connector: {
-    name: 'serviceworker',
-    room: 'ServiceWorkerExample2'
-  },
-  sourceDir: '/bower_components',
-  share: {
-    richtext: 'Richtext' // y.share.richtext is of type Y.Richtext
-  }
-}).then(function (y) {
-  window.yServiceWorker = y
-
-  // create quill element
-  window.quill = new Quill('#quill', {
-    modules: {
-      formula: true,
-      syntax: true,
-      toolbar: [
-        [{ size: ['small', false, 'large', 'huge'] }],
-        ['bold', 'italic', 'underline'],
-        [{ color: [] }, { background: [] }],    // Snow theme fills in values
-        [{ script: 'sub' }, { script: 'super' }],
-        ['link', 'image'],
-        ['link', 'code-block'],
-        [{ list: 'ordered' }]
-      ]
-    },
-    theme: 'snow'
-  })
-  // bind quill to richtext type
-  y.share.richtext.bind(window.quill)
-})

examples/serviceworker/yjs-sw-template.js

@@ -1,22 +0,0 @@
-/* eslint-env worker */
-
-// copy and modify this file
-
-self.DBConfig = {
-  name: 'indexeddb'
-}
-self.ConnectorConfig = {
-  name: 'websockets-client',
-  // url: '..',
-  options: {
-    jsonp: false
-  }
-}
-
-importScripts(
-  '/bower_components/yjs/y.js',
-  '/bower_components/y-memory/y-memory.js',
-  '/bower_components/y-indexeddb/y-indexeddb.js',
-  '/bower_components/y-websockets-client/y-websockets-client.js',
-  '/bower_components/y-serviceworker/yjs-sw-include.js'
-)

examples/textarea/index.html

@@ -1,12 +0,0 @@
-<!DOCTYPE html>
-<html>
-<body>
-  <textarea style="width:80%;" rows=40 id="textfield" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"></textarea>
-  <script src="../../y.js"></script>
-  <script src="../../../y-array/y-array.js"></script>
-  <script src="../../../y-text/dist/y-text.js"></script>
-  <script src="../../../y-memory/y-memory.js"></script>
-  <script src="../../../y-websockets-client/y-websockets-client.js"></script>
-  <script src="./index.js"></script>
-</body>
-</html>

examples/textarea/index.js

@@ -1,30 +0,0 @@
-/* global Y */
-
-// eslint-disable-next-line
-let search = new URLSearchParams(location.search)
-
-// initialize a shared object. This function call returns a promise!
-Y({
-  db: {
-    name: 'memory'
-  },
-  connector: {
-    name: 'websockets-client',
-    room: 'Textarea-example',
-    // url: '//localhost:1234',
-    url: 'https://yjs-v13.herokuapp.com/'
-    // options: { transports: ['websocket'], upgrade: false }
-  },
-  share: {
-    textarea: 'Text'
-  },
-  timeout: 5000 // reject if no connection was established within 5 seconds
-}).then(function (y) {
-  window.yTextarea = y
-
-  // bind the textarea to a shared text element
-  y.share.textarea.bind(document.getElementById('textfield'))
-  // thats it..
-}).catch(() => {
-  console.log('Something went wrong while creating the instance..')
-})

examples/xml/index.html

@@ -1,40 +0,0 @@
-<!DOCTYPE html>
-<html>
-</head>
-  <!-- jquery is not required for y-xml. It is just here for convenience, and to test batch operations. -->
-  <script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
-  <script src="../yjs-dist.js"></script>
-  <script src="./index.js"></script>
-</head>
-<body>
-  <h1> Shared DOM Example </h1>
-  <p> Use native DOM function or jQuery to manipulate the shared DOM (window.sharedDom). </p>
-  <div class="command">
-    <button type="button">Execute</button>
-    <input type="text" value='$(sharedDom).append("<h3>Appended headline</h3>")' size="40"/>
-  </div>
-  <div class="command">
-    <button type="button">Execute</button>
-    <input type="text" value='$(sharedDom).attr("align","right")' size="40"/>
-  </div>
-  <div class="command">
-    <button type="button">Execute</button>
-    <input type="text" value='$(sharedDom).attr("style","color:blue;")' size="40"/>
-  </div>
-
-  <script>
-    var commands = document.querySelectorAll(".command");
-    Array.prototype.forEach.call(document.querySelectorAll('.command'), function (command) {
-      var execute = function(){
-        eval(command.querySelector("input").value);
-      }
-      command.querySelector("button").onclick = execute
-      $(command.querySelector("input")).keyup(function (e) {
-        if (e.keyCode == 13) {
-          execute()
-        }
-      })
-    })
-  </script>
-</body>
-</html>

examples/xml/index.js

@@ -1,23 +0,0 @@
-/* global Y */
-
-// initialize a shared object. This function call returns a promise!
-Y({
-  db: {
-    name: 'memory'
-  },
-  connector: {
-    name: 'websockets-client',
-    // url: 'http://127.0.0.1:1234',
-    url: 'http://192.168.178.81:1234',
-    room: 'Xml-example'
-  },
-  sourceDir: '/bower_components',
-  share: {
-    xml: 'Xml("p")' // y.share.xml is of type Y.Xml with tagname "p"
-  }
-}).then(function (y) {
-  window.yXml = y
-  // bind xml type to a dom, and put it in body
-  window.sharedDom = y.share.xml.getDom()
-  document.body.appendChild(window.sharedDom)
-})

examples/yjs-dist.esm

@@ -1,12 +0,0 @@
-
-import Y from '../src/y.js'
-import yArray from '../../y-array/src/y-array.js'
-import yMap from '../../y-map/src/Map.js'
-import yText from '../../y-text/src/Text.js'
-import yXml from '../../y-xml/src/y-xml.js'
-import yMemory from '../../y-memory/src/y-memory.js'
-import yWebsocketsClient from '../../y-websockets-client/src/y-websockets-client.js'
-
-Y.extend(yArray, yMap, yText, yXml, yMemory, yWebsocketsClient)
-
-export default Y

gulpfile.helper.js

@@ -0,0 +1,202 @@
+
+var $ = require('gulp-load-plugins')()
+var minimist = require('minimist')
+var browserify = require('browserify')
+var source = require('vinyl-source-stream')
+var buffer = require('vinyl-buffer')
+
+module.exports = function (gulp, helperOptions) {
+  var runSequence = require('run-sequence').use(gulp)
+  var options = minimist(process.argv.slice(2), {
+    string: ['modulename', 'export', 'name', 'port', 'testfiles', 'es6'],
+    default: {
+      modulename: helperOptions.moduleName,
+      targetName: helperOptions.targetName,
+      export: 'ignore',
+      port: '8888',
+      testfiles: '**/*.spec.js',
+      es6: false,
+      browserify: helperOptions.browserify != null ? helperOptions.browserify : false,
+      includeRuntime: helperOptions.includeRuntime || false,
+      debug: false
+    }
+  })
+  if (options.es6 !== false) {
+    options.es6 = true
+  }
+  var files = {
+    dist: helperOptions.entry,
+    specs: helperOptions.specs,
+    src: './src/**/*.js'
+  }
+
+  if (options.includeRuntime) {
+    files.distEs5 = ['node_modules/regenerator/runtime.js', files.dist]
+  } else {
+    files.distEs5 = [files.dist]
+  }
+
+  gulp.task('dist:es5', function () {
+    var babelOptions = {
+      presets: ['es2015']
+    }
+    return (browserify({
+      entries: files.distEs5,
+      debug: true
+    }).transform('babelify', babelOptions)
+      .bundle()
+      .pipe(source(options.targetName))
+      .pipe(buffer())
+      .pipe($.sourcemaps.init({loadMaps: true}))
+      .pipe($.if(!options.debug, $.uglify().on('error', function (e) {
+        console.log('\x07', e.message, JSON.stringify(e)); return this.end()
+      })))
+      .pipe($.sourcemaps.write('.'))
+      .pipe(gulp.dest('./dist/')))
+  })
+
+  gulp.task('dist:es6', function () {
+    return (browserify({
+      entries: files.dist,
+      debug: true
+    }).bundle()
+      .pipe(source(options.targetName))
+      .pipe(buffer())
+      .pipe($.sourcemaps.init({loadMaps: true}))
+      // .pipe($.uglify()) -- generators not yet supported see #448
+      .pipe($.rename({
+        extname: '.es6'
+      }))
+      .pipe($.sourcemaps.write('.'))
+
+      .pipe(gulp.dest('./dist/')))
+  })
+
+  gulp.task('dist', ['dist:es6', 'dist:es5'])
+
+  gulp.task('watch:dist', function (cb) {
+    options.debug = true
+    gulp.src(['./README.md'])
+      .pipe($.watch('./README.md'))
+      .pipe(gulp.dest('./dist/'))
+    runSequence('dist', function () {
+      gulp.watch(files.src.concat('./README.md'), ['dist'])
+      cb()
+    })
+  })
+
+  gulp.task('dev:node', ['test'], function () {
+    gulp.watch(files.src, ['test'])
+  })
+
+  gulp.task('spec-build', function () {
+    var browserify = require('browserify')
+    var source = require('vinyl-source-stream')
+    var buffer = require('vinyl-buffer')
+
+    return browserify({
+      entries: files.specs, // .concat(files.distEs5),
+      debug: true
+    })// .transform('babelify', { presets: ['es2015'] })
+      .bundle()
+      .pipe(source('specs.js'))
+      .pipe(buffer())
+      // .pipe($.sourcemaps.init({loadMaps: true}))
+      // .pipe($.sourcemaps.write('.'))
+      .pipe(gulp.dest('./build/'))
+  })
+
+  gulp.task('dev:browser', ['spec-build'], function () {
+    gulp.watch(files.src, ['spec-build'])
+    return gulp.src('./build/specs.js')
+      .pipe($.jasmineBrowser.specRunner())
+      .pipe($.jasmineBrowser.server({port: options.port}))
+  })
+
+  gulp.task('test', function () {
+    return gulp.src(files.specs)
+      .pipe($.jasmine({
+        verbose: true,
+        includeStuckTrace: true
+      }))
+  })
+
+  gulp.task('updateSubmodule', function () {
+    return gulp.src('./package.json', {read: false})
+      .pipe($.shell([
+        'git submodule update --init',
+        'cd dist && git pull origin dist'
+      ]))
+  })
+
+  gulp.task('bump', function (cb) {
+    gulp.src(['./package.json', './bower.json', './dist/bower.json'], {base: '.'})
+      .pipe($.prompt.prompt({
+        type: 'checkbox',
+        name: 'bump',
+        message: 'What type of bump would you like to do?',
+        choices: ['patch', 'minor', 'major']
+      }, function (res) {
+        if (res.bump.length === 0) {
+          console.info('You have to select a bump type. Now I\'m going to use "patch" as bump type..')
+        }
+        var bumptype = res.bump[0]
+        if (bumptype === 'major') {
+          runSequence('bump_major', cb)
+        } else if (bumptype === 'minor') {
+          runSequence('bump_minor', cb)
+        } else {
+          runSequence('bump_patch', cb)
+        }
+      }))
+  })
+  gulp.task('bump_patch', function () {
+    return gulp.src(['./package.json', './bower.json', './dist/bower.json'], {base: '.'})
+      .pipe($.bump({type: 'patch'}))
+      .pipe(gulp.dest('./'))
+  })
+  gulp.task('bump_minor', function () {
+    return gulp.src(['./package.json', './bower.json', './dist/bower.json'], {base: '.'})
+      .pipe($.bump({type: 'minor'}))
+      .pipe(gulp.dest('./'))
+  })
+  gulp.task('bump_major', function () {
+    return gulp.src(['./package.json', './bower.json', './dist/bower.json'], {base: '.'})
+      .pipe($.bump({type: 'major'}))
+      .pipe(gulp.dest('./'))
+  })
+
+  gulp.task('publish_commits', function () {
+    return gulp.src('./package.json')
+        .pipe($.prompt.confirm({
+          message: 'Are you sure you want to publish this release?',
+          default: false
+        }))
+        .pipe($.shell([
+          'cp README.md dist',
+          'standard',
+          'echo "Deploying version <%= getVersion(file.path) %>"',
+          'git pull',
+          'cd ./dist/ && git add -A',
+          'cd ./dist/ && git commit -am "Deploy <%= getVersion(file.path) %>" -n',
+          'cd ./dist/ && git push origin HEAD:dist',
+          'cd ./dist/ && git tag -a v<%= getVersion(file.path) %> -m "Release <%= getVersion(file.path) %>"',
+          'cd ./dist/ && git push origin --tags',
+          'git commit -am "Release <%= getVersion(file.path) %>" -n',
+          'git push',
+          'npm publish',
+          'echo Finished'
+        ], {
+          templateData: {
+            getVersion: function () {
+              return JSON.parse(String.fromCharCode.apply(null, this.file._contents)).version
+            }
+          }
+        }))
+  })
+
+  gulp.task('publish', function (cb) {
+    /* TODO: include 'test',*/
+    runSequence('updateSubmodule', 'bump', 'dist', 'publish_commits', cb)
+  })
+}

gulpfile.js

@@ -0,0 +1,104 @@
+/* eslint-env node */
+
+/** Gulp Commands
+
+  gulp command*
+    [--export ModuleType]
+    [--name ModuleName]
+    [--testport TestPort]
+    [--testfiles TestFiles]
+
+  Module name (ModuleName):
+    Compile this to "y.js" (default)
+
+  Supported module types (ModuleType):
+    - amd
+    - amdStrict
+    - common
+    - commonStrict
+    - ignore (default)
+    - system
+    - umd
+    - umdStrict
+
+  Test port (TestPort):
+    Serve the specs on port 8888 (default)
+
+  Test files (TestFiles):
+    Specify which specs to use!
+
+  Commands:
+    - build:deploy
+        Build this library for deployment (es6->es5, minified)
+    - dev:browser
+        Watch the ./src directory.
+        Builds the library on changes.
+        Starts an http-server and serves the test suite on http://127.0.0.1:8888.
+    - dev:node
+        Watch the ./src directory.
+        Builds and specs the library on changes.
+        Usefull to run with node-inspector.
+        `node-debug $(which gulp) dev:node
+    - test:
+        Test this library
+*/
+
+var gulp = require('gulp')
+var $ = require('gulp-load-plugins')()
+var runSequence = require('run-sequence').use(gulp)
+
+require('./gulpfile.helper.js')(gulp, {
+  polyfills: [],
+  entry: './src/y.js',
+  targetName: 'y.js',
+  moduleName: 'yjs',
+  includeRuntime: true,
+  specs: [
+    './src/Database.spec.js',
+    '../y-array/src/Array.spec.js',
+    '../y-map/src/Map.spec.js'
+  ]
+})
+
+gulp.task('dev:examples', ['watch:dist'], function () {
+  // watch all distfiles and copy them to bower_components
+  var distfiles = ['./dist/*.{js,es6}', './dist/*.{js,es6}.map', '../y-*/dist/*.{js,es6}', '../y-*/dist/*.{js,es6}.map']
+  gulp.src(distfiles)
+    .pipe($.watch(distfiles))
+    .pipe($.rename(function (path) {
+      var dir = path.dirname.split(/[\\\/]/)[0]
+      console.log(JSON.stringify(path))
+      path.dirname = dir === '.' ? 'yjs' : dir
+    }))
+    .pipe(gulp.dest('./dist/Examples/bower_components/'))
+
+  return $.serve('dist/Examples/')()
+})
+
+gulp.task('default', ['updateSubmodule'], function (cb) {
+  gulp.src('package.json')
+    .pipe($.prompt.prompt({
+      type: 'checkbox',
+      name: 'tasks',
+      message: 'Which tasks would you like to run?',
+      choices: [
+        'test                    Test this project',
+        'dev:examples            Serve the examples directory in ./dist/',
+        'dev:browser             Watch files & serve the testsuite for the browser',
+        'dev:nodejs              Watch filse & test this project with nodejs',
+        'bump                    Bump the current state of the project',
+        'publish                 Publish this project. Creates a github tag',
+        'dist                    Build the distribution files'
+      ]
+    }, function (res) {
+      var tasks = res.tasks.map(function (task) {
+        return task.split(' ')[0]
+      })
+      if (tasks.length > 0) {
+        console.info('gulp ' + tasks.join(' '))
+        runSequence(tasks, cb)
+      } else {
+        console.info('Ok, .. goodbye')
+      }
+    }))
+})

package.json

@@ -1,26 +1,24 @@
 {
   "name": "yjs",
-  "version": "13.0.0-16",
+  "version": "11.2.6",
-  "description": "A framework for real-time p2p shared editing on any data",
+  "description": "A framework for real-time p2p shared editing on arbitrary complex data types",
-  "main": "./y.node.js",
+  "main": "./src/y.js",
-  "browser": "./y.js",
-  "module": "./src/y.js",
   "scripts": {
-    "test": "npm run lint",
+    "test": "node --harmony ./node_modules/.bin/gulp test",
-    "debug": "concurrently 'rollup -wc rollup.test.js' 'cutest-serve y.test.js -o'",
+    "lint": "./node_modules/.bin/standard"
-    "lint": "standard",
-    "dist": "rollup -c rollup.browser.js; rollup -c rollup.node.js",
-    "watch": "concurrently 'rollup -wc rollup.browser.js' 'rollup -wc rollup.node.js'",
-    "postversion": "npm run dist",
-    "postpublish": "tag-dist-files --overwrite-existing-tag"
   },
-  "files": [
+  "pre-commit": [
-    "y.*"
+    "lint",
+    "test"
   ],
   "standard": {
+    "parser": "babel-eslint",
     "ignore": [
-      "/y.js",
+      "build/**",
-      "/y.js.map"
+      "dist/**",
+      "declarations/**",
+      "./y.js",
+      "./y.js.map"
     ]
   },
   "repository": {
@@ -44,27 +42,38 @@
   },
   "homepage": "http://y-js.org",
   "devDependencies": {
-    "babel-cli": "^6.24.1",
+    "babel-eslint": "^5.0.0-beta6",
-    "babel-plugin-external-helpers": "^6.22.0",
+    "babel-plugin-transform-runtime": "^6.1.18",
-    "babel-plugin-transform-regenerator": "^6.24.1",
+    "babel-preset-es2015": "^6.1.18",
-    "babel-plugin-transform-runtime": "^6.23.0",
+    "babelify": "^7.2.0",
-    "babel-preset-latest": "^6.24.1",
+    "browserify": "^12.0.1",
-    "chance": "^1.0.9",
+    "eslint": "^1.10.2",
-    "concurrently": "^3.4.0",
+    "gulp": "^3.9.0",
-    "cutest": "^0.1.9",
+    "gulp-bump": "^1.0.0",
-    "rollup-plugin-babel": "^2.7.1",
+    "gulp-concat": "^2.6.0",
-    "rollup-plugin-commonjs": "^8.0.2",
+    "gulp-filter": "^3.0.1",
-    "rollup-plugin-inject": "^2.0.0",
+    "gulp-git": "^1.6.0",
-    "rollup-plugin-multi-entry": "^2.0.1",
+    "gulp-if": "^2.0.0",
-    "rollup-plugin-node-resolve": "^3.0.0",
+    "gulp-jasmine": "^2.0.1",
-    "rollup-plugin-uglify": "^1.0.2",
+    "gulp-jasmine-browser": "^0.2.3",
-    "rollup-regenerator-runtime": "^6.23.1",
+    "gulp-load-plugins": "^1.0.0",
-    "rollup-watch": "^3.2.2",
+    "gulp-prompt": "^0.1.2",
-    "standard": "^10.0.2",
+    "gulp-rename": "^1.2.2",
-    "tag-dist-files": "^0.1.6"
+    "gulp-serve": "^1.2.0",
+    "gulp-shell": "^0.5.1",
+    "gulp-sourcemaps": "^1.5.2",
+    "gulp-tag-version": "^1.3.0",
+    "gulp-uglify": "1.4.*",
+    "gulp-util": "^3.0.6",
+    "gulp-watch": "^4.3.5",
+    "minimist": "^1.2.0",
+    "pre-commit": "^1.1.1",
+    "regenerator": "^0.8.42",
+    "run-sequence": "^1.1.4",
+    "seedrandom": "^2.4.2",
+    "standard": "^5.2.2",
+    "vinyl-buffer": "^1.0.0",
+    "vinyl-source-stream": "^1.1.0"
   },
-  "dependencies": {
+  "dependencies": {}
-    "debug": "^2.6.8",
-    "utf-8": "^1.0.0"
-  }
 }

rollup.browser.js

@@ -1,47 +0,0 @@
-import inject from 'rollup-plugin-inject'
-import babel from 'rollup-plugin-babel'
-import uglify from 'rollup-plugin-uglify'
-import nodeResolve from 'rollup-plugin-node-resolve'
-import commonjs from 'rollup-plugin-commonjs'
-var pkg = require('./package.json')
-
-export default {
-  entry: 'src/y.js',
-  moduleName: 'Y',
-  format: 'umd',
-  plugins: [
-    nodeResolve({
-      main: true,
-      module: true,
-      browser: true
-    }),
-    commonjs(),
-    babel({
-      runtimeHelpers: true
-    }),
-    inject({
-      regeneratorRuntime: 'regenerator-runtime'
-    }),
-    uglify({
-      output: {
-        comments: function (node, comment) {
-          var text = comment.value
-          var type = comment.type
-          if (type === 'comment2') {
-            // multiline comment
-            return /@license/i.test(text)
-          }
-        }
-      }
-    })
-  ],
-  dest: 'y.js',
-  sourceMap: true,
-  banner: `
-/**
- * ${pkg.name} - ${pkg.description}
- * @version v${pkg.version}
- * @license ${pkg.license}
- */
-`
-}

rollup.node.js

@@ -1,26 +0,0 @@
-import nodeResolve from 'rollup-plugin-node-resolve'
-import commonjs from 'rollup-plugin-commonjs'
-var pkg = require('./package.json')
-
-export default {
-  entry: 'src/y.js',
-  moduleName: 'Y',
-  format: 'umd',
-  plugins: [
-    nodeResolve({
-      main: true,
-      module: true,
-      browser: true
-    }),
-    commonjs()
-  ],
-  dest: 'y.node.js',
-  sourceMap: true,
-  banner: `
-/**
- * ${pkg.name} - ${pkg.description}
- * @version v${pkg.version}
- * @license ${pkg.license}
- */
-`
-}

rollup.test.js

@@ -1,20 +0,0 @@
-import nodeResolve from 'rollup-plugin-node-resolve'
-import commonjs from 'rollup-plugin-commonjs'
-import multiEntry from 'rollup-plugin-multi-entry'
-
-export default {
-  entry: 'test/y-xml.tests.js',
-  moduleName: 'y-tests',
-  format: 'umd',
-  plugins: [
-    nodeResolve({
-      main: true,
-      module: true,
-      browser: true
-    }),
-    commonjs(),
-    multiEntry()
-  ],
-  dest: 'y.test.js',
-  sourceMap: true
-}

src/Connector.js

@@ -1,23 +1,38 @@
-import { BinaryEncoder, BinaryDecoder } from './Encoding.js'
+/* @flow */
-import { sendSyncStep1, computeMessageSyncStep1, computeMessageSyncStep2, computeMessageUpdate } from './MessageHandler.js'
+'use strict'
 
-export default function extendConnector (Y/* :any */) {
+module.exports = function (Y/* :any */) {
   class AbstractConnector {
+    /* ::
+    y: YConfig;
+    role: SyncRole;
+    connections: Object;
+    isSynced: boolean;
+    userEventListeners: Array<Function>;
+    whenSyncedListeners: Array<Function>;
+    currentSyncTarget: ?UserId;
+    syncingClients: Array<UserId>;
+    forwardToSyncingClients: boolean;
+    debug: boolean;
+    broadcastedHB: boolean;
+    syncStep2: Promise;
+    userId: UserId;
+    send: Function;
+    broadcast: Function;
+    broadcastOpBuffer: Array<Operation>;
+    protocolVersion: number;
+    */
     /*
       opts contains the following information:
        role : String Role of this client ("master" or "slave")
+       userId : String Uniquely defines the user.
+       debug: Boolean Whether to print debug messages (optional)
     */
     constructor (y, opts) {
       this.y = y
       if (opts == null) {
         opts = {}
       }
-      this.opts = opts
-      // Prefer to receive untransformed operations. This does only work if
-      // this client receives operations from only one other client.
-      // In particular, this does not work with y-webrtc.
-      // It will work with y-websockets-client
-      this.preferUntransformed = opts.preferUntransformed || false
       if (opts.role == null || opts.role === 'master') {
         this.role = 'master'
       } else if (opts.role === 'slave') {
@@ -25,78 +40,63 @@ export default function extendConnector (Y/* :any */) {
       } else {
         throw new Error("Role must be either 'master' or 'slave'!")
       }
-      this.log = Y.debug('y:connector')
-      this.logMessage = Y.debug('y:connector-message')
       this.y.db.forwardAppliedOperations = opts.forwardAppliedOperations || false
       this.role = opts.role
-      this.connections = new Map()
+      this.connections = {}
       this.isSynced = false
       this.userEventListeners = []
       this.whenSyncedListeners = []
       this.currentSyncTarget = null
+      this.syncingClients = []
+      this.forwardToSyncingClients = opts.forwardToSyncingClients !== false
       this.debug = opts.debug === true
+      this.broadcastedHB = false
+      this.syncStep2 = Promise.resolve()
       this.broadcastOpBuffer = []
       this.protocolVersion = 11
-      this.authInfo = opts.auth || null
-      this.checkAuth = opts.checkAuth || function () { return Promise.resolve('write') } // default is everyone has write access
-      if (opts.generateUserId !== false) {
-        this.setUserId(Y.utils.generateUserId())
     }
-    }
-
     reconnect () {
-      this.log('reconnecting..')
-      return this.y.db.startGarbageCollector()
     }
-
     disconnect () {
-      this.log('discronnecting..')
+      this.connections = {}
-      this.connections = new Map()
       this.isSynced = false
       this.currentSyncTarget = null
+      this.broadcastedHB = false
+      this.syncingClients = []
       this.whenSyncedListeners = []
-      this.y.db.stopGarbageCollector()
+      return 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')
+      console.info('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.isSynced = false
+      for (var name in this.connections) {
-      this.connections.forEach((user, userId) => {
+        this.connections[name].isSynced = false
-        user.isSynced = false
+      }
-        this._syncWithUser(userId)
+      this.isSynced = false
-      })
+      this.currentSyncTarget = null
+      this.broadcastedHB = false
+      this.findNextSyncTarget()
     }
-
     setUserId (userId) {
       if (this.userId == null) {
-        if (!Number.isInteger(userId)) {
-          let err = new Error('UserId must be an integer!')
-          this.y.emit('error', err)
-          throw err
-        }
-        this.log('Set userId to "%s"', userId)
         this.userId = userId
         return this.y.db.setUserId(userId)
       } else {
         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)) {
+      if (this.connections[user] != null) {
-        this.log('%s: User left %s', this.userId, user)
+        delete this.connections[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()
+        }
+        this.syncingClients = this.syncingClients.filter(function (cli) {
+          return cli !== user
+        })
         for (var f of this.userEventListeners) {
           f({
             action: 'userLeft',
@@ -105,25 +105,17 @@ export default function extendConnector (Y/* :any */) {
         }
       }
     }
-    userJoined (user, role, auth) {
+    userJoined (user, role) {
       if (role == null) {
         throw new Error('You must specify the role of the joined user!')
       }
-      if (this.connections.has(user)) {
+      if (this.connections[user] != null) {
         throw new Error('This user already joined!')
       }
-      this.log('%s: User joined %s', this.userId, user)
+      this.connections[user] = {
-      this.connections.set(user, {
-        uid: user,
         isSynced: false,
-        role: role,
+        role: role
-        processAfterAuth: [],
+      }
-        auth: auth || null,
-        receivedSyncStep2: false
-      })
-      let defer = {}
-      defer.promise = new Promise(function (resolve) { defer.resolve = resolve })
-      this.connections.get(user).syncStep2 = defer
       for (var f of this.userEventListeners) {
         f({
           action: 'userJoined',
@@ -131,7 +123,9 @@ export default function extendConnector (Y/* :any */) {
           role: role
         })
       }
-      this._syncWithUser(user)
+      if (this.currentSyncTarget == null) {
+        this.findNextSyncTarget()
+      }
     }
     // Execute a function _when_ we are connected.
     // If not connected, wait until connected
@@ -142,39 +136,53 @@ export default function extendConnector (Y/* :any */) {
         this.whenSyncedListeners.push(f)
       }
     }
-    _syncWithUser (userid) {
+    /*
-      if (this.role === 'slave') {
+
-        return // "The current sync has not finished or this is controlled by a master!"
+     returns false, if there is no sync target
+     true otherwise
+    */
+    findNextSyncTarget () {
+      if (this.currentSyncTarget != null || this.isSynced) {
+        return // "The current sync has not finished!"
       }
-      sendSyncStep1(this, userid)
+
+      var syncUser = null
+      for (var uid in this.connections) {
+        if (!this.connections[uid].isSynced) {
+          syncUser = uid
+          break
         }
-    _fireIsSyncedListeners () {
+      }
-      this.y.db.whenTransactionsFinished().then(() => {
+      var conn = this
-        if (!this.isSynced) {
+      if (syncUser != null) {
-          this.isSynced = true
+        this.currentSyncTarget = syncUser
-          // It is safer to remove this!
+        this.y.db.requestTransaction(function *() {
-          // TODO: remove: yield * this.garbageCollectAfterSync()
+          var stateSet = yield* this.getStateSet()
+          var deleteSet = yield* this.getDeleteSet()
+          conn.send(syncUser, {
+            type: 'sync step 1',
+            stateSet: stateSet,
+            deleteSet: deleteSet,
+            protocolVersion: conn.protocolVersion
+          })
+        })
+      } else {
+        this.y.db.requestTransaction(function *() {
+          // it is crucial that isSynced is set at the time garbageCollectAfterSync is called
+          conn.isSynced = true
+          yield* this.garbageCollectAfterSync()
           // call whensynced listeners
-          for (var f of this.whenSyncedListeners) {
+          for (var f of conn.whenSyncedListeners) {
             f()
           }
-          this.whenSyncedListeners = []
+          conn.whenSyncedListeners = []
-        }
         })
       }
-    send (uid, buffer) {
-      if (!(buffer instanceof ArrayBuffer || buffer instanceof Uint8Array)) {
-        throw new Error('Expected Message to be an ArrayBuffer or Uint8Array - please don\'t use this method to send custom messages')
     }
-      this.log('%s: Send \'%y\' to %s', this.userId, buffer, uid)
+    send (uid, message) {
-      this.logMessage('Message: %Y', buffer)
+      if (this.debug) {
+        console.log(`send ${this.userId} -> ${uid}: ${message.type}`, message) // eslint-disable-line
       }
-    broadcast (buffer) {
-      if (!(buffer instanceof ArrayBuffer || buffer instanceof Uint8Array)) {
-        throw new Error('Expected Message to be an ArrayBuffer or Uint8Array - please don\'t use this method to send custom messages')
-      }
-      this.log('%s: Broadcast \'%y\'', this.userId, buffer)
-      this.logMessage('Message: %Y', buffer)
     }
     /*
       Buffer operations, and broadcast them when ready.
@@ -186,23 +194,20 @@ export default function extendConnector (Y/* :any */) {
       var self = this
       function broadcastOperations () {
         if (self.broadcastOpBuffer.length > 0) {
-          let encoder = new BinaryEncoder()
+          self.broadcast({
-          encoder.writeVarString(self.opts.room)
+            type: 'update',
-          encoder.writeVarString('update')
+            ops: self.broadcastOpBuffer
-          let ops = self.broadcastOpBuffer
+          })
           self.broadcastOpBuffer = []
-          let length = ops.length
-          encoder.writeUint32(length)
-          for (var i = 0; i < length; i++) {
-            let op = ops[i]
-            Y.Struct[op.struct].binaryEncode(encoder, op)
-          }
-          self.broadcast(encoder.createBuffer())
         }
       }
       if (this.broadcastOpBuffer.length === 0) {
         this.broadcastOpBuffer = ops
+        if (this.y.db.transactionInProgress) {
           this.y.db.whenTransactionsFinished().then(broadcastOperations)
+        } else {
+          setTimeout(broadcastOperations, 0)
+        }
       } else {
         this.broadcastOpBuffer = this.broadcastOpBuffer.concat(ops)
       }
@@ -210,81 +215,120 @@ export default function extendConnector (Y/* :any */) {
     /*
       You received a raw message, and you know that it is intended for Yjs. Then call this function.
     */
-    receiveMessage (sender, buffer, skipAuth) {
+    receiveMessage (sender/* :UserId */, message/* :Message */) {
-      skipAuth = skipAuth || false
-      if (!(buffer instanceof ArrayBuffer || buffer instanceof Uint8Array)) {
-        return Promise.reject(new Error('Expected Message to be an ArrayBuffer or Uint8Array!'))
-      }
       if (sender === this.userId) {
-        return Promise.resolve()
+        return
       }
-      let decoder = new BinaryDecoder(buffer)
+      if (this.debug) {
-      let encoder = new BinaryEncoder()
+        console.log(`receive ${sender} -> ${this.userId}: ${message.type}`, JSON.parse(JSON.stringify(message))) // eslint-disable-line
-      let roomname = decoder.readVarString() // read room name
-      encoder.writeVarString(roomname)
-      let messageType = decoder.readVarString()
-      let senderConn = this.connections.get(sender)
-
-      this.log('%s: Receive \'%s\' from %s', this.userId, messageType, sender)
-      this.logMessage('Message: %Y', buffer)
-
-      if (senderConn == null && !skipAuth) {
-        throw new Error('Received message from unknown peer!')
       }
+      if (message.protocolVersion != null && message.protocolVersion !== this.protocolVersion) {
+        console.error(
+          `You tried to sync with a yjs instance that has a different protocol version
+          (You: ${this.protocolVersion}, Client: ${message.protocolVersion}).
+          The sync was stopped. You need to upgrade your dependencies (especially Yjs & the Connector)!
+          `)
+        this.send(sender, {
+          type: 'sync stop',
+          protocolVersion: this.protocolVersion
+        })
+        return
+      }
+      if (message.type === 'sync step 1') {
+        let conn = this
+        let m = message
+        this.y.db.requestTransaction(function *() {
+          var currentStateSet = yield* this.getStateSet()
+          yield* this.applyDeleteSet(m.deleteSet)
 
-      if (messageType === 'sync step 1' || messageType === 'sync step 2') {
+          var ds = yield* this.getDeleteSet()
-        let auth = decoder.readVarUint()
+          var ops = yield* this.getOperations(m.stateSet)
-        if (senderConn.auth == null) {
+          conn.send(sender, {
-          senderConn.processAfterAuth.push([messageType, senderConn, decoder, encoder, sender])
+            type: 'sync step 2',
-          // check auth
+            os: ops,
-          return this.checkAuth(auth, this.y, sender).then(authPermissions => {
+            stateSet: currentStateSet,
-            if (senderConn.auth == null) {
+            deleteSet: ds,
-              senderConn.auth = authPermissions
+            protocolVersion: this.protocolVersion
-              this.y.emit('userAuthenticated', {
+          })
-                user: senderConn.uid,
+          if (this.forwardToSyncingClients) {
-                auth: authPermissions
+            conn.syncingClients.push(sender)
+            setTimeout(function () {
+              conn.syncingClients = conn.syncingClients.filter(function (cli) {
+                return cli !== sender
+              })
+              conn.send(sender, {
+                type: 'sync done'
+              })
+            }, 5000) // TODO: conn.syncingClientDuration)
+          } else {
+            conn.send(sender, {
+              type: 'sync done'
             })
           }
-            let messages = senderConn.processAfterAuth
+          conn._setSyncedWith(sender)
-            senderConn.processAfterAuth = []
+        })
-
+      } else if (message.type === 'sync step 2') {
-            return messages.reduce((p, m) =>
+        let conn = this
-              p.then(() => this.computeMessage(m[0], m[1], m[2], m[3], m[4]))
+        var broadcastHB = !this.broadcastedHB
-            , Promise.resolve())
+        this.broadcastedHB = true
+        var db = this.y.db
+        var defer = {}
+        defer.promise = new Promise(function (resolve) {
+          defer.resolve = resolve
+        })
+        this.syncStep2 = defer.promise
+        let m /* :MessageSyncStep2 */ = message
+        db.requestTransaction(function * () {
+          yield* this.applyDeleteSet(m.deleteSet)
+          this.store.apply(m.os)
+          db.requestTransaction(function * () {
+            var ops = yield* this.getOperations(m.stateSet)
+            if (ops.length > 0) {
+              if (!broadcastHB) { // TODO: consider to broadcast here..
+                conn.send(sender, {
+                  type: 'update',
+                  ops: ops
                 })
-        }
-      }
-      if (skipAuth || senderConn.auth != null) {
-        return this.computeMessage(messageType, senderConn, decoder, encoder, sender, skipAuth)
               } else {
-        senderConn.processAfterAuth.push([messageType, senderConn, decoder, encoder, sender, false])
+                // broadcast only once!
+                conn.broadcastOps(ops)
               }
             }
-
+            defer.resolve()
-    computeMessage (messageType, senderConn, decoder, encoder, sender, skipAuth) {
+          })
-      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)
+      } else if (message.type === 'sync done') {
-        computeMessageSyncStep1(decoder, encoder, this, senderConn, sender)
+        var self = this
-        return this.y.db.whenTransactionsFinished()
+        this.syncStep2.then(function () {
-      } else if (messageType === 'sync step 2' && senderConn.auth === 'write') {
+          self._setSyncedWith(sender)
-        return computeMessageSyncStep2(decoder, encoder, this, senderConn, sender)
+        })
-      } else if (messageType === 'update' && (skipAuth || senderConn.auth === 'write')) {
+      } else if (message.type === 'update') {
-        return computeMessageUpdate(decoder, encoder, this, senderConn, sender)
+        if (this.forwardToSyncingClients) {
-      } else {
+          for (var client of this.syncingClients) {
-        return Promise.reject(new Error('Unable to receive message'))
+            this.send(client, message)
+          }
+        }
+        if (this.y.db.forwardAppliedOperations) {
+          var delops = message.ops.filter(function (o) {
+            return o.struct === 'Delete'
+          })
+          if (delops.length > 0) {
+            this.broadcastOps(delops)
+          }
+        }
+        this.y.db.apply(message.ops)
       }
     }
-
     _setSyncedWith (user) {
-      if (user != null) {
+      var conn = this.connections[user]
-        this.connections.get(user).isSynced = true
+      if (conn != null) {
+        conn.isSynced = true
       }
-      let conns = Array.from(this.connections.values())
+      if (user === this.currentSyncTarget) {
-      if (conns.length > 0 && conns.every(u => u.isSynced)) {
+        this.currentSyncTarget = null
-        this._fireIsSyncedListeners()
+        this.findNextSyncTarget()
       }
     }
-
     /*
       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/Connectors/Test.js

@@ -0,0 +1,165 @@
+/* global getRandom, async */
+'use strict'
+
+module.exports = function (Y) {
+  var globalRoom = {
+    users: {},
+    buffers: {},
+    removeUser: function (user) {
+      for (var i in this.users) {
+        this.users[i].userLeft(user)
+      }
+      delete this.users[user]
+      delete this.buffers[user]
+    },
+    addUser: function (connector) {
+      this.users[connector.userId] = connector
+      this.buffers[connector.userId] = {}
+      for (var uname in this.users) {
+        if (uname !== connector.userId) {
+          var u = this.users[uname]
+          u.userJoined(connector.userId, 'master')
+          connector.userJoined(u.userId, 'master')
+        }
+      }
+    },
+    whenTransactionsFinished: function () {
+      var ps = []
+      for (var name in this.users) {
+        ps.push(this.users[name].y.db.whenTransactionsFinished())
+      }
+      return Promise.all(ps)
+    },
+    flushOne: function flushOne () {
+      var bufs = []
+      for (var receiver in globalRoom.buffers) {
+        let buff = globalRoom.buffers[receiver]
+        var push = false
+        for (let sender in buff) {
+          if (buff[sender].length > 0) {
+            push = true
+            break
+          }
+        }
+        if (push) {
+          bufs.push(receiver)
+        }
+      }
+      if (bufs.length > 0) {
+        var userId = getRandom(bufs)
+        let buff = globalRoom.buffers[userId]
+        let sender = getRandom(Object.keys(buff))
+        var m = buff[sender].shift()
+        if (buff[sender].length === 0) {
+          delete buff[sender]
+        }
+        var user = globalRoom.users[userId]
+        user.receiveMessage(m[0], m[1])
+        return user.y.db.whenTransactionsFinished()
+      } else {
+        return false
+      }
+    },
+    flushAll: function () {
+      return new Promise(function (resolve) {
+        // flushes may result in more created operations,
+        // flush until there is nothing more to flush
+        function nextFlush () {
+          var c = globalRoom.flushOne()
+          if (c) {
+            while (c) {
+              c = globalRoom.flushOne()
+            }
+            globalRoom.whenTransactionsFinished().then(nextFlush)
+          } else {
+            setTimeout(function () {
+              var c = globalRoom.flushOne()
+              if (c) {
+                c.then(function () {
+                  globalRoom.whenTransactionsFinished().then(nextFlush)
+                })
+              } else {
+                resolve()
+              }
+            }, 0)
+          }
+        }
+        globalRoom.whenTransactionsFinished().then(nextFlush)
+      })
+    }
+  }
+  Y.utils.globalRoom = globalRoom
+
+  var userIdCounter = 0
+
+  class Test extends Y.AbstractConnector {
+    constructor (y, options) {
+      if (options === undefined) {
+        throw new Error('Options must not be undefined!')
+      }
+      options.role = 'master'
+      options.forwardToSyncingClients = false
+      super(y, options)
+      this.setUserId((userIdCounter++) + '').then(() => {
+        globalRoom.addUser(this)
+      })
+      this.globalRoom = globalRoom
+      this.syncingClientDuration = 0
+    }
+    receiveMessage (sender, m) {
+      super.receiveMessage(sender, JSON.parse(JSON.stringify(m)))
+    }
+    send (userId, message) {
+      var buffer = globalRoom.buffers[userId]
+      if (buffer != null) {
+        if (buffer[this.userId] == null) {
+          buffer[this.userId] = []
+        }
+        buffer[this.userId].push(JSON.parse(JSON.stringify([this.userId, message])))
+      }
+    }
+    broadcast (message) {
+      for (var key in globalRoom.buffers) {
+        var buff = globalRoom.buffers[key]
+        if (buff[this.userId] == null) {
+          buff[this.userId] = []
+        }
+        buff[this.userId].push(JSON.parse(JSON.stringify([this.userId, message])))
+      }
+    }
+    isDisconnected () {
+      return globalRoom.users[this.userId] == null
+    }
+    reconnect () {
+      if (this.isDisconnected()) {
+        globalRoom.addUser(this)
+        super.reconnect()
+      }
+      return Y.utils.globalRoom.flushAll()
+    }
+    disconnect () {
+      if (!this.isDisconnected()) {
+        globalRoom.removeUser(this.userId)
+        super.disconnect()
+      }
+      return this.y.db.whenTransactionsFinished()
+    }
+    flush () {
+      var self = this
+      return async(function * () {
+        var buff = globalRoom.buffers[self.userId]
+        while (Object.keys(buff).length > 0) {
+          var sender = getRandom(Object.keys(buff))
+          var m = buff[sender].shift()
+          if (buff[sender].length === 0) {
+            delete buff[sender]
+          }
+          this.receiveMessage(m[0], m[1])
+        }
+        yield self.whenTransactionsFinished()
+      })
+    }
+  }
+
+  Y.Test = Test
+}

src/Database.js

@@ -1,7 +1,7 @@
 /* @flow */
 'use strict'
 
-export default function extendDatabase (Y /* :any */) {
+module.exports = function (Y /* :any */) {
   /*
     Partial definition of an OperationStore.
     TODO: name it Database, operation store only holds operations.
@@ -39,15 +39,13 @@ export default function extendDatabase (Y /* :any */) {
     */
     constructor (y, opts) {
       this.y = y
-      opts.gc = opts.gc === true
-      this.dbOpts = opts
       var os = this
       this.userId = null
-      var resolve_
+      var resolve
-      this.userIdPromise = new Promise(function (resolve) {
+      this.userIdPromise = new Promise(function (r) {
-        resolve_ = resolve
+        resolve = r
       })
-      this.userIdPromise.resolve = resolve_
+      this.userIdPromise.resolve = resolve
       // whether to broadcast all applied operations (insert & delete hook)
       this.forwardAppliedOperations = false
       // E.g. this.listenersById[id] : Array<Listener>
@@ -72,17 +70,17 @@ export default function extendDatabase (Y /* :any */) {
       this.waitingTransactions = []
       this.transactionInProgress = false
       this.transactionIsFlushed = false
-      if (typeof YConcurrencyTestingMode !== 'undefined') {
+      if (typeof YConcurrency_TestingMode !== 'undefined') {
         this.executeOrder = []
       }
       this.gc1 = [] // first stage
       this.gc2 = [] // second stage -> after that, remove the op
-
+      this.gcTimeout = !opts.gcTimeout ? 50000 : opts.gcTimeouts
       function garbageCollect () {
         return os.whenTransactionsFinished().then(function () {
-          if (os.gcTimeout > 0 && (os.gc1.length > 0 || os.gc2.length > 0)) {
+          if (os.gc1.length > 0 || os.gc2.length > 0) {
-            if (!os.y.connector.isSynced) {
+            if (!os.y.isConnected()) {
-              console.warn('gc should be empty when not synced!')
+              console.warn('gc should be empty when disconnected!')
             }
             return new Promise((resolve) => {
               os.requestTransaction(function * () {
@@ -111,23 +109,13 @@ export default function extendDatabase (Y /* :any */) {
         })
       }
       this.garbageCollect = garbageCollect
-      this.startGarbageCollector()
+      if (this.gcTimeout > 0) {
-
+        garbageCollect()
+      }
       this.repairCheckInterval = !opts.repairCheckInterval ? 6000 : opts.repairCheckInterval
       this.opsReceivedTimestamp = new Date()
       this.startRepairCheck()
     }
-    startGarbageCollector () {
-      this.gc = this.dbOpts.gc
-      if (this.gc) {
-        this.gcTimeout = !this.dbOpts.gcTimeout ? 30000 : this.dbOpts.gcTimeout
-      } else {
-        this.gcTimeout = -1
-      }
-      if (this.gcTimeout > 0) {
-        this.garbageCollect()
-      }
-    }
     startRepairCheck () {
       var os = this
       if (this.repairCheckInterval > 0) {
@@ -161,7 +149,7 @@ export default function extendDatabase (Y /* :any */) {
       clearInterval(this.repairCheckIntervalHandler)
     }
     queueGarbageCollector (id) {
-      if (this.y.connector.isSynced && this.gc) {
+      if (this.y.isConnected()) {
         this.gc1.push(id)
       }
     }
@@ -178,7 +166,7 @@ export default function extendDatabase (Y /* :any */) {
       })
     }
     addToDebug () {
-      if (typeof YConcurrencyTestingMode !== 'undefined') {
+      if (typeof YConcurrency_TestingMode !== 'undefined') {
         var command /* :string */ = Array.prototype.map.call(arguments, function (s) {
           if (typeof s === 'string') {
             return s
@@ -194,8 +182,6 @@ export default function extendDatabase (Y /* :any */) {
     }
     stopGarbageCollector () {
       var self = this
-      this.gc = false
-      this.gcTimeout = -1
       return new Promise(function (resolve) {
         self.requestTransaction(function * () {
           var ungc /* :Array<Struct> */ = self.gc1.concat(self.gc2)
@@ -218,7 +204,7 @@ export default function extendDatabase (Y /* :any */) {
       TODO: rename this function
 
       Rulez:
-      * Only gc if this user is online & gc turned on
+      * Only gc if this user is online
       * The most left element in a list must not be gc'd.
         => There is at least one element in the list
 
@@ -227,9 +213,7 @@ export default function extendDatabase (Y /* :any */) {
     * addToGarbageCollector (op, left) {
       if (
         op.gc == null &&
-        op.deleted === true &&
+        op.deleted === true
-        this.store.gc &&
-        this.store.y.connector.isSynced
       ) {
         var gc = false
         if (left != null && left.deleted === true) {
@@ -255,7 +239,10 @@ export default function extendDatabase (Y /* :any */) {
       this.gc2 = this.gc2.filter(filter)
       delete op.gc
     }
-    destroyTypes () {
+    * destroy () {
+      clearInterval(this.gcInterval)
+      this.gcInterval = null
+      this.stopRepairCheck()
       for (var key in this.initializedTypes) {
         var type = this.initializedTypes[key]
         if (type._destroy != null) {
@@ -265,11 +252,6 @@ export default function extendDatabase (Y /* :any */) {
         }
       }
     }
-    * destroy () {
-      clearTimeout(this.gcInterval)
-      this.gcInterval = null
-      this.stopRepairCheck()
-    }
     setUserId (userId) {
       if (!this.userIdPromise.inProgress) {
         this.userIdPromise.inProgress = true
@@ -306,12 +288,10 @@ export default function extendDatabase (Y /* :any */) {
       * check if it is an expected op (otherwise wait for it)
       * check if was deleted, apply a delete operation after op was applied
     */
-    applyOperations (decoder) {
+    apply (ops) {
       this.opsReceivedTimestamp = new Date()
-      let length = decoder.readUint32()
+      for (var i = 0; i < ops.length; i++) {
-
+        var o = ops[i]
-      for (var i = 0; i < length; i++) {
-        let o = Y.Struct.binaryDecodeOperation(decoder)
         if (o.id == null || o.id[0] !== this.y.connector.userId) {
           var required = Y.Struct[o.struct].requiredOps(o)
           if (o.requires != null) {
@@ -454,7 +434,8 @@ export default function extendDatabase (Y /* :any */) {
      */
     * operationAdded (transaction, op) {
       if (op.struct === 'Delete') {
-        var type = this.initializedTypes[JSON.stringify(op.targetParent)]
+        var target = yield* transaction.getInsertion(op.target)
+        var type = this.initializedTypes[JSON.stringify(target.parent)]
         if (type != null) {
           yield* type._changed(transaction, op)
         }
@@ -514,16 +495,18 @@ export default function extendDatabase (Y /* :any */) {
     whenTransactionsFinished () {
       if (this.transactionInProgress) {
         if (this.transactionsFinished == null) {
-          var resolve_
+          var resolve
-          var promise = new Promise(function (resolve) {
+          var promise = new Promise(function (r) {
-            resolve_ = resolve
+            resolve = r
           })
           this.transactionsFinished = {
-            resolve: resolve_,
+            resolve: resolve,
             promise: promise
           }
-        }
+          return promise
+        } else {
           return this.transactionsFinished.promise
+        }
       } else {
         return Promise.resolve()
       }
@@ -560,48 +543,6 @@ export default function extendDatabase (Y /* :any */) {
         }, 0)
       }
     }
-    /*
-      Get a created/initialized type.
-    */
-    getType (id) {
-      return this.initializedTypes[JSON.stringify(id)]
-    }
-    /*
-      Init type. This is called when a remote operation is retrieved, and transformed to a type
-      TODO: delete type from store.initializedTypes[id] when corresponding id was deleted!
-    */
-    * initType (id, args) {
-      var sid = JSON.stringify(id)
-      var t = this.store.initializedTypes[sid]
-      if (t == null) {
-        var op/* :MapStruct | ListStruct */ = yield * this.getOperation(id)
-        if (op != null) {
-          t = yield * Y[op.type].typeDefinition.initType.call(this, this.store, op, args)
-          this.store.initializedTypes[sid] = t
-        }
-      }
-      return t
-    }
-    /*
-     Create type. This is called when the local user creates a type (which is a synchronous action)
-    */
-    createType (typedefinition, id) {
-      var structname = typedefinition[0].struct
-      id = id || this.getNextOpId(1)
-      var op = Y.Struct[structname].create(id, typedefinition[1])
-      op.type = typedefinition[0].name
-
-      this.requestTransaction(function * () {
-        if (op.id[0] === 0xFFFFFF) {
-          yield * this.setOperation(op)
-        } else {
-          yield * this.applyCreatedOperations([op])
-        }
-      })
-      var t = Y[op.type].typeDefinition.createType(this, op, typedefinition[1])
-      this.initializedTypes[JSON.stringify(op.id)] = t
-      return t
-    }
   }
   Y.AbstractDatabase = AbstractDatabase
 }

src/Encoding.js

@@ -1,152 +0,0 @@
-import utf8 from 'utf-8'
-
-const bits7 = 0b1111111
-const bits8 = 0b11111111
-
-export class BinaryEncoder {
-  constructor () {
-    this.data = []
-  }
-
-  get pos () {
-    return this.data.length
-  }
-
-  createBuffer () {
-    return Uint8Array.from(this.data).buffer
-  }
-
-  writeUint8 (num) {
-    this.data.push(num & bits8)
-  }
-
-  setUint8 (pos, num) {
-    this.data[pos] = num & bits8
-  }
-
-  writeUint16 (num) {
-    this.data.push(num & bits8, (num >>> 8) & bits8)
-  }
-
-  setUint16 (pos, num) {
-    this.data[pos] = num & bits8
-    this.data[pos + 1] = (num >>> 8) & bits8
-  }
-
-  writeUint32 (num) {
-    for (let i = 0; i < 4; i++) {
-      this.data.push(num & bits8)
-      num >>>= 8
-    }
-  }
-
-  setUint32 (pos, num) {
-    for (let i = 0; i < 4; i++) {
-      this.data[pos + i] = num & bits8
-      num >>>= 8
-    }
-  }
-
-  writeVarUint (num) {
-    while (num >= 0b10000000) {
-      this.data.push(0b10000000 | (bits7 & num))
-      num >>>= 7
-    }
-    this.data.push(bits7 & num)
-  }
-
-  writeVarString (str) {
-    let bytes = utf8.setBytesFromString(str)
-    let len = bytes.length
-    this.writeVarUint(len)
-    for (let i = 0; i < len; i++) {
-      this.data.push(bytes[i])
-    }
-  }
-
-  writeOpID (id) {
-    let user = id[0]
-    this.writeVarUint(user)
-    if (user !== 0xFFFFFF) {
-      this.writeVarUint(id[1])
-    } else {
-      this.writeVarString(id[1])
-    }
-  }
-}
-
-export class BinaryDecoder {
-  constructor (buffer) {
-    if (buffer instanceof ArrayBuffer) {
-      this.uint8arr = new Uint8Array(buffer)
-    } else if (buffer instanceof Uint8Array || (typeof Buffer !== 'undefined' && buffer instanceof Buffer)) {
-      this.uint8arr = buffer
-    } else {
-      throw new Error('Expected an ArrayBuffer or Uint8Array!')
-    }
-    this.pos = 0
-  }
-
-  skip8 () {
-    this.pos++
-  }
-
-  readUint8 () {
-    return this.uint8arr[this.pos++]
-  }
-
-  readUint32 () {
-    let uint =
-      this.uint8arr[this.pos] +
-      (this.uint8arr[this.pos + 1] << 8) +
-      (this.uint8arr[this.pos + 2] << 16) +
-      (this.uint8arr[this.pos + 3] << 24)
-    this.pos += 4
-    return uint
-  }
-
-  peekUint8 () {
-    return this.uint8arr[this.pos]
-  }
-
-  readVarUint () {
-    let num = 0
-    let len = 0
-    while (true) {
-      let r = this.uint8arr[this.pos++]
-      num = num | ((r & bits7) << len)
-      len += 7
-      if (r < 1 << 7) {
-        return num >>> 0 // return unsigned number!
-      }
-      if (len > 35) {
-        throw new Error('Integer out of range!')
-      }
-    }
-  }
-
-  readVarString () {
-    let len = this.readVarUint()
-    let bytes = new Array(len)
-    for (let i = 0; i < len; i++) {
-      bytes[i] = this.uint8arr[this.pos++]
-    }
-    return utf8.getStringFromBytes(bytes)
-  }
-
-  peekVarString () {
-    let pos = this.pos
-    let s = this.readVarString()
-    this.pos = pos
-    return s
-  }
-
-  readOpID () {
-    let user = this.readVarUint()
-    if (user !== 0xFFFFFF) {
-      return [user, this.readVarUint()]
-    } else {
-      return [user, this.readVarString()]
-    }
-  }
-}

src/MessageHandler.js

@@ -1,193 +0,0 @@
-
-import Y from './y.js'
-import { BinaryDecoder, BinaryEncoder } from './Encoding.js'
-
-export function formatYjsMessage (buffer) {
-  let decoder = new BinaryDecoder(buffer)
-  decoder.readVarString() // read roomname
-  let type = decoder.readVarString()
-  let strBuilder = []
-  strBuilder.push('\n === ' + type + ' ===\n')
-  if (type === 'update') {
-    logMessageUpdate(decoder, strBuilder)
-  } else if (type === 'sync step 1') {
-    logMessageSyncStep1(decoder, strBuilder)
-  } else if (type === 'sync step 2') {
-    logMessageSyncStep2(decoder, strBuilder)
-  } else {
-    strBuilder.push('-- Unknown message type - probably an encoding issue!!!')
-  }
-  return strBuilder.join('')
-}
-
-export function formatYjsMessageType (buffer) {
-  let decoder = new BinaryDecoder(buffer)
-  decoder.readVarString() // roomname
-  return decoder.readVarString()
-}
-
-export function logMessageUpdate (decoder, strBuilder) {
-  let len = decoder.readUint32()
-  for (let i = 0; i < len; i++) {
-    strBuilder.push(JSON.stringify(Y.Struct.binaryDecodeOperation(decoder)) + '\n')
-  }
-}
-
-export function computeMessageUpdate (decoder, encoder, conn) {
-  if (conn.y.db.forwardAppliedOperations || conn.y.persistence != null) {
-    let messagePosition = decoder.pos
-    let len = decoder.readUint32()
-    let delops = []
-    for (let i = 0; i < len; i++) {
-      let op = Y.Struct.binaryDecodeOperation(decoder)
-      if (op.struct === 'Delete') {
-        delops.push(op)
-      }
-    }
-    if (delops.length > 0) {
-      if (conn.y.db.forwardAppliedOperations) {
-        conn.broadcastOps(delops)
-      }
-      if (conn.y.persistence) {
-        conn.y.persistence.saveOperations(delops)
-      }
-    }
-    decoder.pos = messagePosition
-  }
-  conn.y.db.applyOperations(decoder)
-}
-
-export function sendSyncStep1 (conn, syncUser) {
-  conn.y.db.requestTransaction(function * () {
-    let encoder = new BinaryEncoder()
-    encoder.writeVarString(conn.opts.room || '')
-    encoder.writeVarString('sync step 1')
-    encoder.writeVarString(conn.authInfo || '')
-    encoder.writeVarUint(conn.protocolVersion)
-    let preferUntransformed = conn.preferUntransformed && this.os.length === 0 // TODO: length may not be defined
-    encoder.writeUint8(preferUntransformed ? 1 : 0)
-    yield * this.writeStateSet(encoder)
-    conn.send(syncUser, encoder.createBuffer())
-  })
-}
-
-export function logMessageSyncStep1 (decoder, strBuilder) {
-  let auth = decoder.readVarString()
-  let protocolVersion = decoder.readVarUint()
-  let preferUntransformed = decoder.readUint8() === 1
-  strBuilder.push(`
-  - auth: "${auth}"
-  - protocolVersion: ${protocolVersion}
-  - preferUntransformed: ${preferUntransformed}
-`)
-  logSS(decoder, strBuilder)
-}
-
-export function computeMessageSyncStep1 (decoder, encoder, conn, senderConn, sender) {
-  let protocolVersion = decoder.readVarUint()
-  let preferUntransformed = decoder.readUint8() === 1
-
-  // check protocol version
-  if (protocolVersion !== conn.protocolVersion) {
-    console.warn(
-      `You tried to sync with a yjs instance that has a different protocol version
-      (You: ${protocolVersion}, Client: ${protocolVersion}).
-      The sync was stopped. You need to upgrade your dependencies (especially Yjs & the Connector)!
-      `)
-    conn.y.destroy()
-  }
-
-  return conn.y.db.whenTransactionsFinished().then(() => {
-    // send sync step 2
-    conn.y.db.requestTransaction(function * () {
-      encoder.writeVarString('sync step 2')
-      encoder.writeVarString(conn.authInfo || '')
-
-      if (preferUntransformed) {
-        encoder.writeUint8(1)
-        yield * this.writeOperationsUntransformed(encoder)
-      } else {
-        encoder.writeUint8(0)
-        yield * this.writeOperations(encoder, decoder)
-      }
-
-      yield * this.writeDeleteSet(encoder)
-      conn.send(senderConn.uid, encoder.createBuffer())
-      senderConn.receivedSyncStep2 = true
-    })
-    return conn.y.db.whenTransactionsFinished().then(() => {
-      if (conn.role === 'slave') {
-        sendSyncStep1(conn, sender)
-      }
-    })
-  })
-}
-
-export function logSS (decoder, strBuilder) {
-  strBuilder.push('  == SS: \n')
-  let len = decoder.readUint32()
-  for (let i = 0; i < len; i++) {
-    let user = decoder.readVarUint()
-    let clock = decoder.readVarUint()
-    strBuilder.push(`     ${user}: ${clock}\n`)
-  }
-}
-
-export function logOS (decoder, strBuilder) {
-  strBuilder.push('  == OS: \n')
-  let len = decoder.readUint32()
-  for (let i = 0; i < len; i++) {
-    let op = Y.Struct.binaryDecodeOperation(decoder)
-    strBuilder.push(JSON.stringify(op) + '\n')
-  }
-}
-
-export function logDS (decoder, strBuilder) {
-  strBuilder.push('  == DS: \n')
-  let len = decoder.readUint32()
-  for (let i = 0; i < len; i++) {
-    let user = decoder.readVarUint()
-    strBuilder.push(`    User: ${user}: `)
-    let len2 = decoder.readVarUint()
-    for (let j = 0; j < len2; j++) {
-      let from = decoder.readVarUint()
-      let to = decoder.readVarUint()
-      let gc = decoder.readUint8() === 1
-      strBuilder.push(`[${from}, ${to}, ${gc}]`)
-    }
-  }
-}
-
-export function logMessageSyncStep2 (decoder, strBuilder) {
-  strBuilder.push('     - auth: ' + decoder.readVarString() + '\n')
-  let osTransformed = decoder.readUint8() === 1
-  strBuilder.push('     - osUntransformed: ' + osTransformed + '\n')
-  logOS(decoder, strBuilder)
-  if (osTransformed) {
-    logSS(decoder, strBuilder)
-  }
-  logDS(decoder, strBuilder)
-}
-
-export function computeMessageSyncStep2 (decoder, encoder, conn, senderConn, sender) {
-  var db = conn.y.db
-  let defer = senderConn.syncStep2
-
-  // apply operations first
-  db.requestTransaction(function * () {
-    let osUntransformed = decoder.readUint8()
-    if (osUntransformed === 1) {
-      yield * this.applyOperationsUntransformed(decoder)
-    } else {
-      this.store.applyOperations(decoder)
-    }
-  })
-  // then apply ds
-  db.requestTransaction(function * () {
-    yield * this.applyDeleteSet(decoder)
-  })
-  return db.whenTransactionsFinished().then(() => {
-    conn._setSyncedWith(sender)
-    defer.resolve()
-  })
-}

src/Persistence.js

@@ -1,43 +0,0 @@
-import { BinaryEncoder } from './Encoding.js'
-
-export default function extendPersistence (Y) {
-  class AbstractPersistence {
-    constructor (y, opts) {
-      this.y = y
-      this.opts = opts
-      this.saveOperationsBuffer = []
-      this.log = Y.debug('y:persistence')
-    }
-    saveToMessageQueue (binary) {
-      this.log('Room %s: Save message to message queue', this.y.options.connector.room)
-    }
-    saveOperations (ops) {
-      ops = ops.map(function (op) {
-        return Y.Struct[op.struct].encode(op)
-      })
-      const saveOperations = () => {
-        if (this.saveOperationsBuffer.length > 0) {
-          let encoder = new BinaryEncoder()
-          encoder.writeVarString(this.opts.room)
-          encoder.writeVarString('update')
-          let ops = this.saveOperationsBuffer
-          this.saveOperationsBuffer = []
-          let length = ops.length
-          encoder.writeUint32(length)
-          for (var i = 0; i < length; i++) {
-            let op = ops[i]
-            Y.Struct[op.struct].binaryEncode(encoder, op)
-          }
-          this.saveToMessageQueue(encoder.createBuffer())
-        }
-      }
-      if (this.saveOperationsBuffer.length === 0) {
-        this.saveOperationsBuffer = ops
-        this.y.db.whenTransactionsFinished().then(saveOperations)
-      } else {
-        this.saveOperationsBuffer = this.saveOperationsBuffer.concat(ops)
-      }
-    }
-  }
-  Y.AbstractPersistence = AbstractPersistence
-}

src/SpecHelper.js

@@ -0,0 +1,385 @@
+/* eslint-env browser, jasmine */
+
+/*
+  This is just a compilation of functions that help to test this library!
+*/
+
+// When testing, you store everything on the global object. We call it g
+
+var Y = require('./y.js')
+require('../../y-memory/src/Memory.js')(Y)
+require('../../y-array/src/Array.js')(Y)
+require('../../y-map/src/Map.js')(Y)
+require('../../y-indexeddb/src/IndexedDB.js')(Y)
+if (typeof window === 'undefined') {
+  require('../../y-leveldb/src/LevelDB.js')(Y)
+}
+module.exports = Y
+
+var g
+if (typeof global !== 'undefined') {
+  g = global
+} else if (typeof window !== 'undefined') {
+  g = window
+} else {
+  throw new Error('No global object?')
+}
+g.g = g
+
+// Helper methods for the random number generator
+Math.seedrandom = require('seedrandom')
+
+g.generateRandomSeed = function generateRandomSeed () {
+  var seed
+  if (typeof window !== 'undefined' && window.location.hash.length > 1) {
+    seed = window.location.hash.slice(1) // first character is the hash!
+    console.warn('Using random seed that was specified in the url!')
+  } else {
+    seed = JSON.stringify(Math.random())
+  }
+  console.info('Using random seed: ' + seed)
+  g.setRandomSeed(seed)
+}
+
+g.setRandomSeed = function setRandomSeed (seed) {
+  Math.seedrandom.currentSeed = seed
+  Math.seedrandom(Math.seedrandom.currentSeed, { global: true })
+}
+
+g.generateRandomSeed()
+
+g.YConcurrency_TestingMode = true
+
+jasmine.DEFAULT_TIMEOUT_INTERVAL = 200000
+
+g.describeManyTimes = function describeManyTimes (times, name, f) {
+  for (var i = 0; i < times; i++) {
+    describe(name, f)
+  }
+}
+
+/*
+  Wait for a specified amount of time (in ms). defaults to 5ms
+*/
+function wait (t) {
+  if (t == null) {
+    t = 0
+  }
+  return new Promise(function (resolve) {
+    setTimeout(function () {
+      resolve()
+    }, t)
+  })
+}
+g.wait = wait
+
+g.databases = ['memory']
+if (typeof window !== 'undefined') {
+  g.databases.push('indexeddb')
+} else {
+  g.databases.push('leveldb')
+}
+/*
+  returns a random element of o.
+  works on Object, and Array
+*/
+function getRandom (o) {
+  if (o instanceof Array) {
+    return o[Math.floor(Math.random() * o.length)]
+  } else if (o.constructor === Object) {
+    return o[getRandom(Object.keys(o))]
+  }
+}
+g.getRandom = getRandom
+
+function getRandomNumber (n) {
+  if (n == null) {
+    n = 9999
+  }
+  return Math.floor(Math.random() * n)
+}
+g.getRandomNumber = getRandomNumber
+
+function getRandomString () {
+  var chars = 'abcdefghijklmnopqrstuvwxyzäüöABCDEFGHIJKLMNOPQRSTUVWXYZÄÜÖ'
+  var char = chars[getRandomNumber(chars.length)] // ü\n\n\n\n\n\n\n'
+  var length = getRandomNumber(7)
+  var string = ''
+  for (var i = 0; i < length; i++) {
+    string += char
+  }
+  return string
+}
+g.getRandomString = getRandomString
+
+function * applyTransactions (relAmount, numberOfTransactions, objects, users, transactions, noReconnect) {
+  g.generateRandomSeed() // create a new seed, so we can re-create the behavior
+  for (var i = 0; i < numberOfTransactions * relAmount + 1; i++) {
+    var r = Math.random()
+    if (r > 0.95) {
+      // 10% chance of toggling concurrent user interactions.
+      // There will be an artificial delay until ops can be executed by the type,
+      // therefore, operations of the database will be (pre)transformed until user operations arrive
+      yield (function simulateConcurrentUserInteractions (type) {
+        if (type.eventHandler.awaiting === 0 && type.eventHandler._debuggingAwaiting !== true) {
+          type.eventHandler.awaiting = 1
+          type.eventHandler._debuggingAwaiting = true
+        } else {
+          // fixAwaitingInType will handle _debuggingAwaiting
+          return fixAwaitingInType(type)
+        }
+      })(getRandom(objects))
+    } else if (r >= 0.5) {
+      // 40% chance to flush
+      yield Y.utils.globalRoom.flushOne() // flushes for some user.. (not necessarily 0)
+    } else if (noReconnect || r >= 0.05) {
+      // 45% chance to create operation
+      var done = getRandom(transactions)(getRandom(objects))
+      if (done != null) {
+        yield done
+      } else {
+        yield wait()
+      }
+      yield Y.utils.globalRoom.whenTransactionsFinished()
+    } else {
+      // 5% chance to disconnect/reconnect
+      var u = getRandom(users)
+      yield Promise.all(objects.map(fixAwaitingInType))
+      if (u.connector.isDisconnected()) {
+        yield u.reconnect()
+      } else {
+        yield u.disconnect()
+      }
+      yield Promise.all(objects.map(fixAwaitingInType))
+    }
+  }
+}
+
+function fixAwaitingInType (type) {
+  return new Promise(function (resolve) {
+    type.os.whenTransactionsFinished().then(function () {
+      // _debuggingAwaiting artificially increases the awaiting property. We need to make sure that we only do that once / reverse the effect once
+      type.os.requestTransaction(function * () {
+        if (type.eventHandler.awaiting > 0 && type.eventHandler._debuggingAwaiting === true) {
+          type.eventHandler._debuggingAwaiting = false
+          yield* type.eventHandler.awaitOps(this, function * () { /* mock function */ })
+        }
+        wait(50).then(type.os.whenTransactionsFinished()).then(wait(50)).then(resolve)
+      })
+    })
+  })
+}
+g.fixAwaitingInType = fixAwaitingInType
+
+g.applyRandomTransactionsNoGCNoDisconnect = async(function * applyRandomTransactions (users, objects, transactions, numberOfTransactions) {
+  yield* applyTransactions(1, numberOfTransactions, objects, users, transactions, true)
+  yield Y.utils.globalRoom.flushAll()
+  yield Promise.all(objects.map(fixAwaitingInType))
+})
+
+g.applyRandomTransactionsAllRejoinNoGC = async(function * applyRandomTransactions (users, objects, transactions, numberOfTransactions) {
+  yield* applyTransactions(1, numberOfTransactions, objects, users, transactions)
+  yield Promise.all(objects.map(fixAwaitingInType))
+  yield Y.utils.globalRoom.flushAll()
+  yield Promise.all(objects.map(fixAwaitingInType))
+  for (var u in users) {
+    yield Promise.all(objects.map(fixAwaitingInType))
+    yield users[u].reconnect()
+    yield Promise.all(objects.map(fixAwaitingInType))
+  }
+  yield Promise.all(objects.map(fixAwaitingInType))
+  yield Y.utils.globalRoom.flushAll()
+  yield Promise.all(objects.map(fixAwaitingInType))
+  yield g.garbageCollectAllUsers(users)
+})
+
+g.applyRandomTransactionsWithGC = async(function * applyRandomTransactions (users, objects, transactions, numberOfTransactions) {
+  yield* applyTransactions(1, numberOfTransactions, objects, users.slice(1), transactions)
+  yield Y.utils.globalRoom.flushAll()
+  yield Promise.all(objects.map(fixAwaitingInType))
+  for (var u in users) {
+    // TODO: here, we enforce that two users never sync at the same time with u[0]
+    //       enforce that in the connector itself!
+    yield users[u].reconnect()
+  }
+  yield Y.utils.globalRoom.flushAll()
+  yield Promise.all(objects.map(fixAwaitingInType))
+  yield g.garbageCollectAllUsers(users)
+})
+
+g.garbageCollectAllUsers = async(function * garbageCollectAllUsers (users) {
+  yield Y.utils.globalRoom.flushAll()
+  for (var i in users) {
+    yield users[i].db.emptyGarbageCollector()
+  }
+})
+
+g.compareAllUsers = async(function * compareAllUsers (users) {
+  var s1, s2 // state sets
+  var ds1, ds2 // delete sets
+  var allDels1, allDels2 // all deletions
+  var db1 = [] // operation store of user1
+
+  // t1 and t2 basically do the same. They define t[1,2], ds[1,2], and allDels[1,2]
+  function * t1 () {
+    s1 = yield* this.getStateSet()
+    ds1 = yield* this.getDeleteSet()
+    allDels1 = []
+    yield* this.ds.iterate(this, null, null, function * (d) {
+      allDels1.push(d)
+    })
+  }
+  function * t2 () {
+    s2 = yield* this.getStateSet()
+    ds2 = yield* this.getDeleteSet()
+    allDels2 = []
+    yield* this.ds.iterate(this, null, null, function * (d) {
+      allDels2.push(d)
+    })
+  }
+  yield Y.utils.globalRoom.flushAll()
+  yield g.garbageCollectAllUsers(users)
+  yield Y.utils.globalRoom.flushAll()
+  var buffer = Y.utils.globalRoom.buffers
+  for (var name in buffer) {
+    if (buffer[name].length > 0) {
+      // not all ops were transmitted..
+      debugger // eslint-disable-line
+    }
+  }
+
+  for (var uid = 0; uid < users.length; uid++) {
+    var u = users[uid]
+    u.db.requestTransaction(function * () {
+      var sv = yield* this.getStateVector()
+      for (var s of sv) {
+        yield* this.updateState(s.user)
+      }
+      // compare deleted ops against deleteStore
+      yield* this.os.iterate(this, null, null, function * (o) {
+        if (o.deleted === true) {
+          expect(yield* this.isDeleted(o.id)).toBeTruthy()
+        }
+      })
+      // compare deleteStore against deleted ops
+      var ds = []
+      yield* this.ds.iterate(this, null, null, function * (d) {
+        ds.push(d)
+      })
+      for (var j in ds) {
+        var d = ds[j]
+        for (var i = 0; i < d.len; i++) {
+          var o = yield* this.getInsertion([d.id[0], d.id[1] + i])
+          // gc'd or deleted
+          if (d.gc) {
+            expect(o).toBeFalsy()
+          } else {
+            expect(o.deleted).toBeTruthy()
+          }
+        }
+      }
+    })
+    // compare allDels tree
+    if (s1 == null) {
+      u.db.requestTransaction(function * () {
+        yield* t1.call(this)
+        yield* this.os.iterate(this, null, null, function * (o) {
+          o = Y.utils.copyObject(o)
+          delete o.origin
+          delete o.originOf
+          db1.push(o)
+        })
+      })
+    } else {
+      u.db.requestTransaction(function * () {
+        yield* t2.call(this)
+        var db2 = []
+        yield* this.os.iterate(this, null, null, function * (o) {
+          o = Y.utils.copyObject(o)
+          delete o.origin
+          delete o.originOf
+          db2.push(o)
+        })
+        expect(s1).toEqual(s2)
+        expect(allDels1).toEqual(allDels2) // inner structure
+        expect(ds1).toEqual(ds2) // exported structure
+        db2.forEach((o, i) => {
+          expect(db1[i]).toEqual(o)
+        })
+      })
+    }
+    yield u.db.whenTransactionsFinished()
+  }
+})
+
+g.createUsers = async(function * createUsers (self, numberOfUsers, database, initType) {
+  if (Y.utils.globalRoom.users[0] != null) {
+    yield Y.utils.globalRoom.flushAll()
+  }
+  // destroy old users
+  for (var u in Y.utils.globalRoom.users) {
+    Y.utils.globalRoom.users[u].y.destroy()
+  }
+  self.users = null
+
+  var promises = []
+  for (var i = 0; i < numberOfUsers; i++) {
+    promises.push(Y({
+      db: {
+        name: database,
+        namespace: 'User ' + i,
+        cleanStart: true,
+        gcTimeout: -1,
+        repairCheckInterval: -1
+      },
+      connector: {
+        name: 'Test',
+        debug: false
+      },
+      share: {
+        root: initType || 'Map'
+      }
+    }))
+  }
+  self.users = yield Promise.all(promises)
+  self.types = self.users.map(function (u) { return u.share.root })
+  return self.users
+})
+
+/*
+  Until async/await arrives in js, we use this function to wait for promises
+  by yielding them.
+*/
+function async (makeGenerator) {
+  return function (arg) {
+    var generator = makeGenerator.apply(this, arguments)
+
+    function handle (result) {
+      if (result.done) return Promise.resolve(result.value)
+
+      return Promise.resolve(result.value).then(function (res) {
+        return handle(generator.next(res))
+      }, function (err) {
+        return handle(generator.throw(err))
+      })
+    }
+    try {
+      return handle(generator.next())
+    } catch (ex) {
+      generator.throw(ex)
+      // return Promise.reject(ex)
+    }
+  }
+}
+g.async = async
+
+function logUsers (self) {
+  if (self.constructor === Array) {
+    self = {users: self}
+  }
+  self.users[0].db.logTable()
+  self.users[1].db.logTable()
+  self.users[2].db.logTable()
+}
+
+g.logUsers = logUsers

src/Struct.js

@@ -1,8 +1,5 @@
-const CDELETE = 0
+/* @flow */
-const CINSERT = 1
+'use strict'
-const CLIST = 2
-const CMAP = 3
-const CXML = 4
 
 /*
  An operation also defines the structure of a type. This is why operation and
@@ -22,26 +19,8 @@ const CXML = 4
  * requiredOps
      - Operations that are required to execute this operation.
 */
-export default function extendStruct (Y) {
+module.exports = function (Y/* :any */) {
-  let Struct = {}
+  var Struct = {
-  Y.Struct = Struct
-  Struct.binaryDecodeOperation = function (decoder) {
-    let code = decoder.peekUint8()
-    if (code === CDELETE) {
-      return Struct.Delete.binaryDecode(decoder)
-    } else if (code === CINSERT) {
-      return Struct.Insert.binaryDecode(decoder)
-    } else if (code === CLIST) {
-      return Struct.List.binaryDecode(decoder)
-    } else if (code === CMAP) {
-      return Struct.Map.binaryDecode(decoder)
-    } else if (code === CXML) {
-      return Struct.Xml.binaryDecode(decoder)
-    } else {
-      throw new Error('Unable to decode operation!')
-    }
-  }
-
     /* This is the only operation that is actually not a structure, because
     it is not stored in the OS. This is why it _does not_ have an id
 
@@ -49,26 +28,9 @@ export default function extendStruct (Y) {
       target: Id
     }
     */
-  Struct.Delete = {
+    Delete: {
       encode: function (op) {
-      return {
+        return op
-        target: op.target,
-        length: op.length || 0,
-        struct: 'Delete'
-      }
-    },
-    binaryEncode: function (encoder, op) {
-      encoder.writeUint8(CDELETE)
-      encoder.writeOpID(op.target)
-      encoder.writeVarUint(op.length || 0)
-    },
-    binaryDecode: function (decoder) {
-      decoder.skip8()
-      return {
-        target: decoder.readOpID(),
-        length: decoder.readVarUint(),
-        struct: 'Delete'
-      }
       },
       requiredOps: function (op) {
         return [] // [op.target]
@@ -76,8 +38,8 @@ export default function extendStruct (Y) {
       execute: function * (op) {
         return yield* this.deleteOperation(op.target, op.length || 1)
       }
-  }
+    },
-
+    Insert: {
       /* {
           content: [any],
           opContent: Id,
@@ -89,7 +51,6 @@ export default function extendStruct (Y) {
           parentSub: string (optional), // child of Map type
         }
       */
-  Struct.Insert = {
       encode: function (op/* :Insertion */) /* :Insertion */ {
         // TODO: you could not send the "left" property, then you also have to
         // "op.left = null" in $execute or $decode
@@ -112,91 +73,6 @@ export default function extendStruct (Y) {
 
         return e
       },
-    binaryEncode: function (encoder, op) {
-      encoder.writeUint8(CINSERT)
-      // compute info property
-      let contentIsText = op.content != null && op.content.every(c => typeof c === 'string' && c.length === 1)
-      let originIsLeft = Y.utils.compareIds(op.left, op.origin)
-      let info =
-        (op.parentSub != null ? 1 : 0) |
-        (op.opContent != null ? 2 : 0) |
-        (contentIsText ? 4 : 0) |
-        (originIsLeft ? 8 : 0) |
-        (op.left != null ? 16 : 0) |
-        (op.right != null ? 32 : 0) |
-        (op.origin != null ? 64 : 0)
-      encoder.writeUint8(info)
-      encoder.writeOpID(op.id)
-      encoder.writeOpID(op.parent)
-      if (info & 16) {
-        encoder.writeOpID(op.left)
-      }
-      if (info & 32) {
-        encoder.writeOpID(op.right)
-      }
-      if (!originIsLeft && info & 64) {
-        encoder.writeOpID(op.origin)
-      }
-      if (info & 1) {
-        // write parentSub
-        encoder.writeVarString(op.parentSub)
-      }
-      if (info & 2) {
-        // write opContent
-        encoder.writeOpID(op.opContent)
-      } else if (info & 4) {
-        // write text
-        encoder.writeVarString(op.content.join(''))
-      } else {
-        // convert to JSON and write
-        encoder.writeVarString(JSON.stringify(op.content))
-      }
-    },
-    binaryDecode: function (decoder) {
-      let op = {
-        struct: 'Insert'
-      }
-      decoder.skip8()
-      // get info property
-      let info = decoder.readUint8()
-
-      op.id = decoder.readOpID()
-      op.parent = decoder.readOpID()
-      if (info & 16) {
-        op.left = decoder.readOpID()
-      } else {
-        op.left = null
-      }
-      if (info & 32) {
-        op.right = decoder.readOpID()
-      } else {
-        op.right = null
-      }
-      if (info & 8) {
-        // origin is left
-        op.origin = op.left
-      } else if (info & 64) {
-        op.origin = decoder.readOpID()
-      } else {
-        op.origin = null
-      }
-      if (info & 1) {
-        // has parentSub
-        op.parentSub = decoder.readVarString()
-      }
-      if (info & 2) {
-        // has opContent
-        op.opContent = decoder.readOpID()
-      } else if (info & 4) {
-        // has pure text content
-        op.content = decoder.readVarString().split('')
-      } else {
-        // has mixed content
-        let s = decoder.readVarString()
-        op.content = JSON.parse(s)
-      }
-      return op
-    },
       requiredOps: function (op) {
         var ids = []
         if (op.left != null) {
@@ -389,13 +265,13 @@ export default function extendStruct (Y) {
         }
 
         // try to merge original op.left and op.origin
-      for (i = 0; i < tryToRemergeLater.length; i++) {
+        for (let i = 0; i < tryToRemergeLater.length; i++) {
           var m = yield* this.getOperation(tryToRemergeLater[i])
           yield* this.tryCombineWithLeft(m)
         }
       }
-  }
+    },
-
+    List: {
       /*
       {
         start: null,
@@ -405,7 +281,6 @@ export default function extendStruct (Y) {
         id: this.os.getNextOpId(1)
       }
       */
-  Struct.List = {
       create: function (id) {
         return {
           start: null,
@@ -420,23 +295,13 @@ export default function extendStruct (Y) {
           id: op.id,
           type: op.type
         }
-      return e
+        if (op.requires != null) {
-    },
+          e.requires = op.requires
-    binaryEncode: function (encoder, op) {
-      encoder.writeUint8(CLIST)
-      encoder.writeOpID(op.id)
-      encoder.writeVarString(op.type)
-    },
-    binaryDecode: function (decoder) {
-      decoder.skip8()
-      let op = {
-        id: decoder.readOpID(),
-        type: decoder.readVarString(),
-        struct: 'List',
-        start: null,
-        end: null
         }
-      return op
+        if (op.info != null) {
+          e.info = op.info
+        }
+        return e
       },
       requiredOps: function () {
         /*
@@ -487,8 +352,8 @@ export default function extendStruct (Y) {
         }
         return res
       }
-  }
+    },
-
+    Map: {
       /*
         {
           map: {},
@@ -497,7 +362,6 @@ export default function extendStruct (Y) {
           id: this.os.getNextOpId(1)
         }
       */
-  Struct.Map = {
       create: function (id) {
         return {
           id: id,
@@ -512,30 +376,18 @@ export default function extendStruct (Y) {
           id: op.id,
           map: {} // overwrite map!!
         }
-      return e
+        if (op.requires != null) {
-    },
+          e.requires = op.requires
-    binaryEncode: function (encoder, op) {
-      encoder.writeUint8(CMAP)
-      encoder.writeOpID(op.id)
-      encoder.writeVarString(op.type)
-    },
-    binaryDecode: function (decoder) {
-      decoder.skip8()
-      let op = {
-        id: decoder.readOpID(),
-        type: decoder.readVarString(),
-        struct: 'Map',
-        map: {}
         }
-      return op
+        if (op.info != null) {
+          e.info = op.info
+        }
+        return e
       },
       requiredOps: function () {
         return []
       },
-    execute: function * (op) {
+      execute: function * () {},
-      op.start = null
-      op.end = null
-    },
       /*
         Get a property by name
       */
@@ -553,67 +405,6 @@ export default function extendStruct (Y) {
         }
       }
     }
-
-  /*
-    {
-      map: {},
-      start: null,
-      end: null,
-      struct: "Xml",
-      type: "",
-      id: this.os.getNextOpId(1)
-    }
-  */
-  Struct.Xml = {
-    create: function (id, args) {
-      let nodeName = args != null ? args.nodeName : null
-      return {
-        id: id,
-        map: {},
-        start: null,
-        end: null,
-        struct: 'Xml',
-        nodeName
-      }
-    },
-    encode: function (op) {
-      var e = {
-        struct: 'Xml',
-        type: op.type,
-        id: op.id,
-        map: {},
-        nodeName: op.nodeName
-      }
-      return e
-    },
-    binaryEncode: function (encoder, op) {
-      encoder.writeUint8(CXML)
-      encoder.writeOpID(op.id)
-      encoder.writeVarString(op.type)
-      encoder.writeVarString(op.nodeName)
-    },
-    binaryDecode: function (decoder) {
-      decoder.skip8()
-      let op = {
-        id: decoder.readOpID(),
-        type: decoder.readVarString(),
-        struct: 'Xml',
-        map: {},
-        start: null,
-        end: null,
-        nodeName: decoder.readVarString()
-      }
-      return op
-    },
-    requiredOps: function () {
-      return []
-    },
-    execute: function * () {},
-    ref: Struct.List.ref,
-    map: Struct.List.map,
-    /*
-      Get a property by name
-    */
-    get: Struct.Map.get
   }
+  Y.Struct = Struct
 }

src/Transaction.js

@@ -1,4 +1,5 @@
-import { BinaryEncoder, BinaryDecoder } from './Encoding.js'
+/* @flow */
+'use strict'
 
 /*
   Partial definition of a transaction
@@ -73,7 +74,7 @@ import { BinaryEncoder, BinaryDecoder } from './Encoding.js'
      - this is called only by `getOperations(startSS)`. It makes an operation
        applyable on a given SS.
 */
-export default function extendTransaction (Y) {
+module.exports = function (Y/* :any */) {
   class TransactionInterface {
     /* ::
     store: Y.AbstractDatabase;
@@ -81,6 +82,57 @@ export default function extendTransaction (Y) {
     os: Store;
     ss: Store;
     */
+    /*
+      Get a type based on the id of its model.
+      If it does not exist yes, create it.
+      TODO: delete type from store.initializedTypes[id] when corresponding id was deleted!
+    */
+    * getType (id, args) {
+      var sid = JSON.stringify(id)
+      var t = this.store.initializedTypes[sid]
+      if (t == null) {
+        var op/* :MapStruct | ListStruct */ = yield* this.getOperation(id)
+        if (op != null) {
+          t = yield* Y[op.type].typeDefinition.initType.call(this, this.store, op, args)
+          this.store.initializedTypes[sid] = t
+        }
+      }
+      return t
+    }
+    * createType (typedefinition, id) {
+      var structname = typedefinition[0].struct
+      id = id || this.store.getNextOpId(1)
+      var op
+      if (id[0] === '_') {
+        op = yield* this.getOperation(id)
+      } else {
+        op = Y.Struct[structname].create(id)
+        op.type = typedefinition[0].name
+      }
+      if (typedefinition[0].appendAdditionalInfo != null) {
+        yield* typedefinition[0].appendAdditionalInfo.call(this, op, typedefinition[1])
+      }
+      if (op[0] === '_') {
+        yield* this.setOperation(op)
+      } else {
+        yield* this.applyCreatedOperations([op])
+      }
+      return yield* this.getType(id, typedefinition[1])
+    }
+    /* createType (typedefinition, id) {
+      var structname = typedefinition[0].struct
+      id = id || this.store.getNextOpId(1)
+      var op = Y.Struct[structname].create(id)
+      op.type = typedefinition[0].name
+      if (typedefinition[0].appendAdditionalInfo != null) {
+        yield* typedefinition[0].appendAdditionalInfo.call(this, op, typedefinition[1])
+      }
+      // yield* this.applyCreatedOperations([op])
+      yield* Y.Struct[op.struct].execute.call(this, op)
+      yield* this.addOperation(op)
+      yield* this.store.operationAdded(this, op)
+      return yield* this.getType(id, typedefinition[1])
+    }*/
     /*
       Apply operations that this user created (no remote ones!)
         * does not check for Struct.*.requiredOps()
@@ -95,12 +147,9 @@ export default function extendTransaction (Y) {
           send.push(Y.Struct[op.struct].encode(op))
         }
       }
-      if (send.length > 0) { // TODO: && !this.store.forwardAppliedOperations (but then i don't send delete ops)
+      if (!this.store.y.connector.isDisconnected() && send.length > 0) { // TODO: && !this.store.forwardAppliedOperations (but then i don't send delete ops)
         // is connected, and this is not going to be send in addOperation
         this.store.y.connector.broadcastOps(send)
-        if (this.store.y.persistence != null) {
-          this.store.y.persistence.saveOperations(send)
-        }
       }
     }
 
@@ -208,8 +257,7 @@ export default function extendTransaction (Y) {
             yield* this.store.operationAdded(this, {
               struct: 'Delete',
               target: target.id,
-              length: targetLength,
+              length: targetLength
-              targetParent: target.parent
             })
           }
           // need to gc in the end!
@@ -296,9 +344,8 @@ export default function extendTransaction (Y) {
                 yield* this.ds.put(n)
               } else {
                 // already gc'd
-                throw new Error(
+                throw new Error('Cannot happen! (it dit though.. :()')
-                  'DS reached an inconsistent state. Please report this issue!'
+                // return n
-                )
               }
             }
           } else {
@@ -369,13 +416,9 @@ export default function extendTransaction (Y) {
       operations that can be gc'd and add them to the garbage collector.
     */
     * garbageCollectAfterSync () {
-      // debugger
       if (this.store.gc1.length > 0 || this.store.gc2.length > 0) {
         console.warn('gc should be empty after sync')
       }
-      if (!this.store.gc) {
-        return
-      }
       yield* this.os.iterate(this, null, null, function * (op) {
         if (op.gc) {
           delete op.gc
@@ -463,8 +506,16 @@ export default function extendTransaction (Y) {
 
           if (o.originOf != null && o.originOf.length > 0) {
             // find new origin of right ops
-            // origin is the first left operation
+            // origin is the first left deleted operation
             var neworigin = o.left
+            var neworigin_ = null
+            while (neworigin != null) {
+              neworigin_ = yield* this.getInsertion(neworigin)
+              if (neworigin_.deleted) {
+                break
+              }
+              neworigin = neworigin_.left
+            }
 
             // reset origin of all right ops (except first right - duh!),
 
@@ -509,7 +560,6 @@ export default function extendTransaction (Y) {
               }
             }
             if (neworigin != null) {
-              var neworigin_ = yield * this.getInsertion(neworigin)
               if (neworigin_.originOf == null) {
                 neworigin_.originOf = o.originOf
               } else {
@@ -590,20 +640,11 @@ export default function extendTransaction (Y) {
       apply a delete set in order to get
       the state of the supplied ds
     */
-    * applyDeleteSet (decoder) {
+    * applyDeleteSet (ds) {
       var deletions = []
 
-      let dsLength = decoder.readUint32()
+      for (var user in ds) {
-      for (let i = 0; i < dsLength; i++) {
+        var dv = ds[user]
-        let user = decoder.readVarUint()
-        let dv = []
-        let dvLength = decoder.readVarUint()
-        for (let j = 0; j < dvLength; j++) {
-          let from = decoder.readVarUint()
-          let len = decoder.readVarUint()
-          let gc = decoder.readUint8() === 1
-          dv.push([from, len, gc])
-        }
         var pos = 0
         var d = dv[pos]
         yield* this.ds.iterate(this, [user, 0], [user, Number.MAX_VALUE], function * (n) {
@@ -683,16 +724,11 @@ export default function extendTransaction (Y) {
             yield* this.garbageCollectOperation(o.id)
           }
         }
-        if (this.store.forwardAppliedOperations || this.store.y.persistence != null) {
-          var ops = []
-          ops.push({struct: 'Delete', target: [del[0], del[1]], length: del[2]})
         if (this.store.forwardAppliedOperations) {
+          var ops = []
+          ops.push({struct: 'Delete', target: [d[0], d[1]], length: del[2]})
           this.store.y.connector.broadcastOps(ops)
         }
-          if (this.store.y.persistence != null) {
-            this.store.y.persistence.saveOperations(ops)
-          }
-        }
       }
     }
     * isGarbageCollected (id) {
@@ -702,34 +738,21 @@ export default function extendTransaction (Y) {
     /*
       A DeleteSet (ds) describes all the deleted ops in the OS
     */
-    * writeDeleteSet (encoder) {
+    * getDeleteSet () {
-      var ds = new Map()
+      var ds = {}
       yield* this.ds.iterate(this, null, null, function * (n) {
         var user = n.id[0]
         var counter = n.id[1]
         var len = n.len
         var gc = n.gc
-        var dv = ds.get(user)
+        var dv = ds[user]
         if (dv === void 0) {
           dv = []
-          ds.set(user, dv)
+          ds[user] = dv
         }
         dv.push([counter, len, gc])
       })
-      let keys = Array.from(ds.keys())
+      return ds
-      encoder.writeUint32(keys.length)
-      for (var i = 0; i < keys.length; i++) {
-        let user = keys[i]
-        let deletions = ds.get(user)
-        encoder.writeVarUint(user)
-        encoder.writeVarUint(deletions.length)
-        for (var j = 0; j < deletions.length; j++) {
-          let del = deletions[j]
-          encoder.writeVarUint(del[0])
-          encoder.writeVarUint(del[1])
-          encoder.writeUint8(del[2] ? 1 : 0)
-        }
-      }
     }
     * isDeleted (id) {
       var n = yield* this.ds.findWithUpperBound(id)
@@ -741,16 +764,10 @@ export default function extendTransaction (Y) {
     }
     * addOperation (op) {
       yield* this.os.put(op)
-      // case op is created by this user, op is already broadcasted in applyCreatedOperations
+      if (!this.store.y.connector.isDisconnected() && this.store.forwardAppliedOperations && typeof op.id[1] !== 'string') {
-      if (op.id[0] !== this.store.userId && typeof op.id[1] !== 'string') {
-        if (this.store.forwardAppliedOperations) {
         // is connected, and this is not going to be send in addOperation
         this.store.y.connector.broadcastOps([op])
       }
-        if (this.store.y.persistence != null) {
-          this.store.y.persistence.saveOperations([op])
-        }
-      }
     }
     // if insertion, try to combine with left insertion (if both have content property)
     * tryCombineWithLeft (op) {
@@ -856,27 +873,22 @@ export default function extendTransaction (Y) {
     }
     * getOperation (id/* :any */)/* :Transaction<any> */ {
       var o = yield* this.os.find(id)
-      if (id[0] !== 0xFFFFFF || o != null) {
+      if (id[0] !== '_' || o != null) {
         return o
       } else { // type is string
         // generate this operation?
         var comp = id[1].split('_')
         if (comp.length > 1) {
           var struct = comp[0]
-          let type = Y[comp[1]]
+          var op = Y.Struct[struct].create(id)
-          let args = null
-          if (type != null) {
-            args = Y.utils.parseTypeDefinition(type, comp[3])
-          }
-          var op = Y.Struct[struct].create(id, args)
           op.type = comp[1]
           yield* this.setOperation(op)
           return op
         } else {
-          throw new Error(
+          // won't be called. but just in case..
-            'Unexpected case. Operation cannot be generated correctly!' +
+          console.error('Unexpected case. How can this happen?')
-            'Incompatible Yjs version?'
+          debugger // eslint-disable-line
-          )
+          return null
         }
       }
     }
@@ -918,18 +930,6 @@ export default function extendTransaction (Y) {
       })
       return ss
     }
-    * writeStateSet (encoder) {
-      let lenPosition = encoder.pos
-      let len = 0
-      encoder.writeUint32(0)
-      yield * this.ss.iterate(this, null, null, function * (n) {
-        encoder.writeVarUint(n.id[0])
-        encoder.writeVarUint(n.clock)
-        len++
-      })
-      encoder.setUint32(lenPosition, len)
-      return len === 0
-    }
     /*
       Here, we make all missing operations executable for the receiving user.
 
@@ -979,71 +979,59 @@ export default function extendTransaction (Y) {
     * getOperations (startSS) {
       // TODO: use bounds here!
       if (startSS == null) {
-        startSS = new Map()
+        startSS = {}
       }
       var send = []
 
       var endSV = yield* this.getStateVector()
-      for (let endState of endSV) {
+      for (var endState of endSV) {
-        let user = endState.user
+        var user = endState.user
-        if (user === 0xFFFFFF) {
+        if (user === '_') {
           continue
         }
-        let startPos = startSS.get(user) || 0
+        var startPos = startSS[user] || 0
         if (startPos > 0) {
           // There is a change that [user, startPos] is in a composed Insertion (with a smaller counter)
           // find out if that is the case
-          let firstMissing = yield * this.getInsertion([user, startPos])
+          var firstMissing = yield* this.getInsertion([user, startPos])
           if (firstMissing != null) {
             // update startPos
             startPos = firstMissing.id[1]
+            startSS[user] = startPos
           }
         }
-        startSS.set(user, startPos)
-      }
-      for (let endState of endSV) {
-        let user = endState.user
-        let startPos = startSS.get(user)
-        if (user === 0xFFFFFF) {
-          continue
-        }
         yield* this.os.iterate(this, [user, startPos], [user, Number.MAX_VALUE], function * (op) {
           op = Y.Struct[op.struct].encode(op)
           if (op.struct !== 'Insert') {
             send.push(op)
-          } else if (op.right == null || op.right[1] < (startSS.get(op.right[0]) || 0)) {
+          } else if (op.right == null || op.right[1] < (startSS[op.right[0]] || 0)) {
             // case 1. op.right is known
-            // this case is only reached if op.right is known.
+            var o = op
-            // => this is not called for op.left, as op.right is unknown
-            let o = op
             // Remember: ?
             // -> set op.right
             //    1. to the first operation that is known (according to startSS)
             //    2. or to the first operation that has an origin that is not to the
             //      right of op.
             // For this we maintain a list of ops which origins are not found yet.
-            var missingOrigins = [op]
+            var missing_origins = [op]
             var newright = op.right
             while (true) {
               if (o.left == null) {
                 op.left = null
                 send.push(op)
-                /* not necessary, as o is already sent..
+                if (!Y.utils.compareIds(o.id, op.id)) {
-                if (!Y.utils.compareIds(o.id, op.id) && o.id[1] >= (startSS.get(o.id[0]) || 0)) {
-                  // o is not op && o is unknown
                   o = Y.Struct[op.struct].encode(o)
-                  o.right = missingOrigins[missingOrigins.length - 1].id
+                  o.right = missing_origins[missing_origins.length - 1].id
                   send.push(o)
                 }
-                */
                 break
               }
               o = yield* this.getInsertion(o.left)
-              // we set another o, check if we can reduce $missingOrigins
+              // we set another o, check if we can reduce $missing_origins
-              while (missingOrigins.length > 0 && Y.utils.matchesId(o, missingOrigins[missingOrigins.length - 1].origin)) {
+              while (missing_origins.length > 0 && Y.utils.matchesId(o, missing_origins[missing_origins.length - 1].origin)) {
-                missingOrigins.pop()
+                missing_origins.pop()
               }
-              if (o.id[1] < (startSS.get(o.id[0]) || 0)) {
+              if (o.id[1] < (startSS[o.id[0]] || 0)) {
                 // case 2. o is known
                 op.left = Y.utils.getLastId(o)
                 send.push(op)
@@ -1054,20 +1042,17 @@ export default function extendTransaction (Y) {
                 send.push(op)
                 op = Y.Struct[op.struct].encode(o)
                 op.right = newright
-                if (missingOrigins.length > 0) {
+                if (missing_origins.length > 0) {
-                  throw new Error(
+                  console.log('This should not happen .. :( please report this')
-                    'Reached inconsistent OS state.' +
-                    'Operations are not correctly connected.'
-                  )
                 }
-                missingOrigins = [op]
+                missing_origins = [op]
               } else {
                 // case 4. send o, continue to find op.origin
                 var s = Y.Struct[op.struct].encode(o)
-                s.right = missingOrigins[missingOrigins.length - 1].id
+                s.right = missing_origins[missing_origins.length - 1].id
                 s.left = s.origin
                 send.push(s)
-                missingOrigins.push(o)
+                missing_origins.push(o)
               }
             }
           }
@@ -1075,92 +1060,6 @@ export default function extendTransaction (Y) {
       }
       return send.reverse()
     }
-
-    * writeOperations (encoder, decoder) {
-      let ss = new Map()
-      let ssLength = decoder.readUint32()
-      for (let i = 0; i < ssLength; i++) {
-        let user = decoder.readVarUint()
-        let clock = decoder.readVarUint()
-        ss.set(user, clock)
-      }
-      let ops = yield * this.getOperations(ss)
-      encoder.writeUint32(ops.length)
-      for (let i = 0; i < ops.length; i++) {
-        let op = ops[i]
-        Y.Struct[op.struct].binaryEncode(encoder, Y.Struct[op.struct].encode(op))
-      }
-    }
-
-    * toBinary () {
-      let encoder = new BinaryEncoder()
-      yield * this.writeOperationsUntransformed(encoder)
-      yield * this.writeDeleteSet(encoder)
-      return encoder.createBuffer()
-    }
-
-    * fromBinary (buffer) {
-      let decoder = new BinaryDecoder(buffer)
-      yield * this.applyOperationsUntransformed(decoder)
-      yield * this.applyDeleteSet(decoder)
-    }
-
-    /*
-     * Get the plain untransformed operations from the database.
-     * You can apply these operations using .applyOperationsUntransformed(ops)
-     *
-     */
-    * writeOperationsUntransformed (encoder) {
-      let lenPosition = encoder.pos
-      let len = 0
-      encoder.writeUint32(0) // placeholder
-      yield * this.os.iterate(this, null, null, function * (op) {
-        if (op.id[0] !== 0xFFFFFF) {
-          len++
-          Y.Struct[op.struct].binaryEncode(encoder, Y.Struct[op.struct].encode(op))
-        }
-      })
-      encoder.setUint32(lenPosition, len)
-      yield * this.writeStateSet(encoder)
-    }
-    * applyOperationsUntransformed (decoder) {
-      let len = decoder.readUint32()
-      for (let i = 0; i < len; i++) {
-        let op = Y.Struct.binaryDecodeOperation(decoder)
-        yield * this.os.put(op)
-      }
-      yield * this.os.iterate(this, null, null, function * (op) {
-        if (op.parent != null) {
-          if (op.struct === 'Insert') {
-            // update parents .map/start/end properties
-            if (op.parentSub != null && op.left == null) {
-              // op is child of Map
-              let parent = yield * this.getOperation(op.parent)
-              parent.map[op.parentSub] = op.id
-              yield * this.setOperation(parent)
-            } else if (op.right == null || op.left == null) {
-              let parent = yield * this.getOperation(op.parent)
-              if (op.right == null) {
-                parent.end = Y.utils.getLastId(op)
-              }
-              if (op.left == null) {
-                parent.start = op.id
-              }
-              yield * this.setOperation(parent)
-            }
-          }
-        }
-      })
-      let stateSetLength = decoder.readUint32()
-      for (let i = 0; i < stateSetLength; i++) {
-        let user = decoder.readVarUint()
-        let clock = decoder.readVarUint()
-        yield * this.ss.put({
-          id: [user],
-          clock: clock
-        })
-      }
-    }
     /* this is what we used before.. use this as a reference..
     * makeOperationReady (startSS, op) {
       op = Y.Struct[op.struct].encode(op)

src/Utils.js

@@ -1,6 +1,5 @@
-/* globals crypto */
+/* @flow */
-
+'use strict'
-import { BinaryDecoder, BinaryEncoder } from './Encoding.js'
 
 /*
   EventHandler is an helper class for constructing custom types.
@@ -24,56 +23,8 @@ import { BinaryDecoder, BinaryEncoder } from './Encoding.js'
   database request to finish). EventHandler helps you to make your type
   synchronous.
 */
-
+module.exports = function (Y /* : any*/) {
-export default function Utils (Y) {
+  Y.utils = {}
-  Y.utils = {
-    BinaryDecoder: BinaryDecoder,
-    BinaryEncoder: BinaryEncoder
-  }
-
-  Y.utils.bubbleEvent = function (type, event) {
-    type.eventHandler.callEventListeners(event)
-    event.path = []
-    while (type != null && type._deepEventHandler != null) {
-      type._deepEventHandler.callEventListeners(event)
-      var parent = null
-      if (type._parent != null) {
-        parent = type.os.getType(type._parent)
-      }
-      if (parent != null && parent._getPathToChild != null) {
-        event.path = [parent._getPathToChild(type._model)].concat(event.path)
-        type = parent
-      } else {
-        type = null
-      }
-    }
-  }
-
-  class NamedEventHandler {
-    constructor () {
-      this._eventListener = {}
-    }
-    on (name, f) {
-      if (this._eventListener[name] == null) {
-        this._eventListener[name] = []
-      }
-      this._eventListener[name].push(f)
-    }
-    off (name, f) {
-      if (name == null || f == null) {
-        throw new Error('You must specify event name and function!')
-      }
-      let listener = this._eventListener[name] || []
-      this._eventListener[name] = listener.filter(e => e !== f)
-    }
-    emit (name, value) {
-      (this._eventListener[name] || []).forEach(l => l(value))
-    }
-    destroy () {
-      this._eventListener = null
-    }
-  }
-  Y.utils.NamedEventHandler = NamedEventHandler
 
   class EventListenerHandler {
     constructor () {
@@ -99,18 +50,9 @@ export default function Utils (Y) {
     callEventListeners (event) {
       for (var i = 0; i < this.eventListeners.length; i++) {
         try {
-          var _event = {}
+          this.eventListeners[i](event)
-          for (var name in event) {
-            _event[name] = event[name]
-          }
-          this.eventListeners[i](_event)
         } catch (e) {
-          /*
+          console.error('User events must not throw Errors!')
-            Your observer threw an error. This error was caught so that Yjs
-            can ensure data consistency! In order to debug this error you
-            have to check "Pause On Caught Exceptions" in developer tools.
-          */
-          console.error(e)
         }
       }
     }
@@ -140,6 +82,7 @@ export default function Utils (Y) {
     destroy () {
       super.destroy()
       this.waiting = null
+      this.awaiting = null
       this.onevent = null
     }
     /*
@@ -295,13 +238,7 @@ export default function Utils (Y) {
           // finished with remaining operations
           self.waiting.push(d)
         }
-        if (op.key == null) {
-          // deletes in list
         checkDelete(op)
-        } else {
-          // deletes in map
-          this.waiting.push(op)
-        }
       } else {
         this.waiting.push(op)
       }
@@ -350,11 +287,7 @@ export default function Utils (Y) {
           var o = this.waiting[i]
           if (o.struct === 'Insert') {
             var _o = yield* transaction.getInsertion(o.id)
-            if (_o.parentSub != null && _o.left != null) {
+            if (!Y.utils.compareIds(_o.id, o.id)) {
-              // if o is an insertion of a map struc (parentSub is defined), then it shouldn't be necessary to compute left
-              this.waiting.splice(i, 1)
-              i-- // update index
-            } else if (!Y.utils.compareIds(_o.id, o.id)) {
               // o got extended
               o.left = [o.id[0], o.id[1] - 1]
             } else if (_o.left == null) {
@@ -514,27 +447,6 @@ export default function Utils (Y) {
   }
   Y.utils.EventHandler = EventHandler
 
-  /*
-    Default class of custom types!
-  */
-  class CustomType {
-    getPath () {
-      var parent = null
-      if (this._parent != null) {
-        parent = this.os.getType(this._parent)
-      }
-      if (parent != null && parent._getPathToChild != null) {
-        var firstKey = parent._getPathToChild(this._model)
-        var parentKeys = parent.getPath()
-        parentKeys.push(firstKey)
-        return parentKeys
-      } else {
-        return []
-      }
-    }
-  }
-  Y.utils.CustomType = CustomType
-
   /*
     A wrapper for the definition of a custom type.
     Every custom type must have three properties:
@@ -546,7 +458,7 @@ export default function Utils (Y) {
     * class
       - the constructor of the custom type (e.g. in order to inherit from a type)
   */
-  class CustomTypeDefinition { // eslint-disable-line
+  class CustomType { // eslint-disable-line
     /* ::
     struct: any;
     initType: any;
@@ -557,14 +469,12 @@ export default function Utils (Y) {
       if (def.struct == null ||
         def.initType == null ||
         def.class == null ||
-        def.name == null ||
+        def.name == null
-        def.createType == null
       ) {
         throw new Error('Custom type was not initialized correctly!')
       }
       this.struct = def.struct
       this.initType = def.initType
-      this.createType = def.createType
       this.class = def.class
       this.name = def.name
       if (def.appendAdditionalInfo != null) {
@@ -576,13 +486,13 @@ export default function Utils (Y) {
       this.parseArguments.typeDefinition = this
     }
   }
-  Y.utils.CustomTypeDefinition = CustomTypeDefinition
+  Y.utils.CustomType = CustomType
 
   Y.utils.isTypeDefinition = function isTypeDefinition (v) {
     if (v != null) {
-      if (v instanceof Y.utils.CustomTypeDefinition) return [v]
+      if (v instanceof Y.utils.CustomType) return [v]
-      else if (v.constructor === Array && v[0] instanceof Y.utils.CustomTypeDefinition) return v
+      else if (v.constructor === Array && v[0] instanceof Y.utils.CustomType) return v
-      else if (v instanceof Function && v.typeDefinition instanceof Y.utils.CustomTypeDefinition) return [v.typeDefinition]
+      else if (v instanceof Function && v.typeDefinition instanceof Y.utils.CustomType) return [v.typeDefinition]
     }
     return false
   }
@@ -648,7 +558,6 @@ export default function Utils (Y) {
         }
       }
     }
-    return false
   }
   Y.utils.matchesId = matchesId
 
@@ -824,33 +733,4 @@ export default function Utils (Y) {
     return SmallLookupBuffer
   }
   Y.utils.createSmallLookupBuffer = createSmallLookupBuffer
-
-  function generateUserId () {
-    if (typeof crypto !== 'undefined' && crypto.getRandomValue != null) {
-      // browser
-      let arr = new Uint32Array(1)
-      crypto.getRandomValues(arr)
-      return arr[0]
-    } else if (typeof crypto !== 'undefined' && crypto.randomBytes != null) {
-      // node
-      let buf = crypto.randomBytes(4)
-      return new Uint32Array(buf.buffer)[0]
-    } else {
-      return Math.ceil(Math.random() * 0xFFFFFFFF)
-    }
-  }
-  Y.utils.generateUserId = generateUserId
-
-  Y.utils.parseTypeDefinition = function parseTypeDefinition (type, typeArgs) {
-    var args = []
-    try {
-      args = JSON.parse('[' + typeArgs + ']')
-    } catch (e) {
-      throw new Error('Was not able to parse type definition!')
-    }
-    if (type.typeDefinition.parseArguments != null) {
-      args = type.typeDefinition.parseArguments(args[0])[1]
-    }
-    return args
-  }
 }

src/y.js

@@ -1,30 +1,20 @@
-import extendConnector from './Connector.js'
+/* @flow */
-import extendPersistence from './Persistence.js'
+'use strict'
-import extendDatabase from './Database.js'
-import extendTransaction from './Transaction.js'
-import extendStruct from './Struct.js'
-import extendUtils from './Utils.js'
-import debug from 'debug'
-import { formatYjsMessage, formatYjsMessageType } from './MessageHandler.js'
 
-extendConnector(Y)
+require('./Connector.js')(Y)
-extendPersistence(Y)
+require('./Database.js')(Y)
-extendDatabase(Y)
+require('./Transaction.js')(Y)
-extendTransaction(Y)
+require('./Struct.js')(Y)
-extendStruct(Y)
+require('./Utils.js')(Y)
-extendUtils(Y)
+require('./Connectors/Test.js')(Y)
-
-Y.debug = debug
-debug.formatters.Y = formatYjsMessage
-debug.formatters.y = formatYjsMessageType
 
 var requiringModules = {}
 
+module.exports = Y
 Y.requiringModules = requiringModules
 
 Y.extend = function (name, value) {
-  if (arguments.length === 2 && typeof name === 'string') {
+  if (value instanceof Y.utils.CustomType) {
-    if (value instanceof Y.utils.CustomTypeDefinition) {
     Y[name] = value.parseArguments
   } else {
     Y[name] = value
@@ -33,26 +23,10 @@ Y.extend = function (name, value) {
     requiringModules[name].resolve()
     delete requiringModules[name]
   }
-  } else {
-    for (var i = 0; i < arguments.length; i++) {
-      var f = arguments[i]
-      if (typeof f === 'function') {
-        f(Y)
-      } else {
-        throw new Error('Expected function!')
-      }
-    }
-  }
 }
 
 Y.requestModules = requestModules
 function requestModules (modules) {
-  var sourceDir
-  if (Y.sourceDir === null) {
-    sourceDir = null
-  } else {
-    sourceDir = Y.sourceDir || '/bower_components'
-  }
   // determine if this module was compiled for es5 or es6 (y.js vs. y.es6)
   // if Insert.execute is a Function, then it isnt a generator..
   // then load the es5(.js) files..
@@ -65,11 +39,10 @@ function requestModules (modules) {
       if (requiringModules[module] == null) {
         // module does not exist
         if (typeof window !== 'undefined' && window.Y !== 'undefined') {
-          if (sourceDir != null) {
           var imported = document.createElement('script')
-            imported.src = sourceDir + '/' + modulename + '/' + modulename + extention
+          imported.src = Y.sourceDir + '/' + modulename + '/' + modulename + extention
           document.head.appendChild(imported)
-          }
+
           let requireModule = {}
           requiringModules[module] = requireModule
           requireModule.promise = new Promise(function (resolve) {
@@ -117,49 +90,36 @@ type YOptions = {
 }
 */
 
-export default function Y (opts/* :YOptions */) /* :Promise<YConfig> */ {
+function Y (opts/* :YOptions */) /* :Promise<YConfig> */ {
-  if (opts.hasOwnProperty('sourceDir')) {
-    Y.sourceDir = opts.sourceDir
-  }
   opts.types = opts.types != null ? opts.types : []
   var modules = [opts.db.name, opts.connector.name].concat(opts.types)
   for (var name in opts.share) {
     modules.push(opts.share[name])
   }
+  Y.sourceDir = opts.sourceDir
   return new Promise(function (resolve, reject) {
-    if (opts == null) reject(new Error('An options object is expected!'))
-    else if (opts.connector == null) reject(new Error('You must specify a connector! (missing connector property)'))
-    else if (opts.connector.name == null) reject(new Error('You must specify connector name! (missing connector.name property)'))
-    else if (opts.db == null) reject(new Error('You must specify a database! (missing db property)'))
-    else if (opts.connector.name == null) reject(new Error('You must specify db name! (missing db.name property)'))
-    else {
-      opts = Y.utils.copyObject(opts)
-      opts.connector = Y.utils.copyObject(opts.connector)
-      opts.db = Y.utils.copyObject(opts.db)
-      opts.share = Y.utils.copyObject(opts.share)
-      Y.requestModules(modules).then(function () {
-        var yconfig = new YConfig(opts)
-        let resolved = false
-        if (opts.timeout != null && opts.timeout >= 0) {
     setTimeout(function () {
-            if (!resolved) {
+      Y.requestModules(modules).then(function () {
-              reject(new Error('Yjs init timeout'))
+        if (opts == null) reject('An options object is expected! ')
-              yconfig.destroy()
+        else if (opts.connector == null) reject('You must specify a connector! (missing connector property)')
-            }
+        else if (opts.connector.name == null) reject('You must specify connector name! (missing connector.name property)')
-          }, opts.timeout)
+        else if (opts.db == null) reject('You must specify a database! (missing db property)')
-        }
+        else if (opts.connector.name == null) reject('You must specify db name! (missing db.name property)')
+        else if (opts.share == null) reject('You must specify a set of shared types!')
+        else {
+          var yconfig = new YConfig(opts)
           yconfig.db.whenUserIdSet(function () {
             yconfig.init(function () {
-            resolved = true
               resolve(yconfig)
-          }, reject)
             })
-      }).catch(reject)
+          })
         }
+      }).catch(reject)
+    }, 0)
   })
 }
 
-class YConfig extends Y.utils.NamedEventHandler {
+class YConfig {
   /* ::
   db: Y.AbstractDatabase;
   connector: Y.AbstractConnector;
@@ -167,16 +127,9 @@ class YConfig extends Y.utils.NamedEventHandler {
   options: Object;
   */
   constructor (opts, callback) {
-    super()
     this.options = opts
     this.db = new Y[opts.db.name](this, opts.db)
     this.connector = new Y[opts.connector.name](this, opts.connector)
-    if (opts.persistence != null) {
-      this.persistence = new Y[opts.persistence.name](this, opts.persistence)
-    } else {
-      this.persistence = null
-    }
-    this.connected = true
   }
   init (callback) {
     var opts = this.options
@@ -186,74 +139,48 @@ class YConfig extends Y.utils.NamedEventHandler {
       // create shared object
       for (var propertyname in opts.share) {
         var typeConstructor = opts.share[propertyname].split('(')
-        let typeArgs = ''
-        if (typeConstructor.length === 2) {
-          typeArgs = typeConstructor[1].split(')')[0] || ''
-        }
         var typeName = typeConstructor.splice(0, 1)
+        var args = []
+        if (typeConstructor.length === 1) {
+          try {
+            args = JSON.parse('[' + typeConstructor[0].split(')')[0] + ']')
+          } catch (e) {
+            throw new Error('Was not able to parse type definition! (share.' + propertyname + ')')
+          }
+        }
         var type = Y[typeName]
         var typedef = type.typeDefinition
-        var id = [0xFFFFFF, typedef.struct + '_' + typeName + '_' + propertyname + '_' + typeArgs]
+        var id = ['_', typedef.struct + '_' + typeName + '_' + propertyname + '_' + typeConstructor]
-        let args = Y.utils.parseTypeDefinition(type, typeArgs)
+        share[propertyname] = yield* this.createType(type.apply(typedef, args), id)
-        share[propertyname] = yield * this.store.initType.call(this, id, args)
       }
+      this.store.whenTransactionsFinished()
+        .then(callback)
     })
-    if (this.persistence != null) {
-      this.persistence.retrieveContent()
-        .then(() => this.db.whenTransactionsFinished())
-        .then(callback)
-    } else {
-      this.db.whenTransactionsFinished()
-        .then(callback)
-    }
   }
   isConnected () {
     return this.connector.isSynced
   }
   disconnect () {
-    if (this.connected) {
-      this.connected = false
     return this.connector.disconnect()
-    } else {
-      return Promise.resolve()
-    }
   }
   reconnect () {
-    if (!this.connected) {
-      this.connected = true
     return this.connector.reconnect()
-    } else {
-      return Promise.resolve()
-    }
   }
   destroy () {
-    var self = this
-    return this.close().then(function () {
-      if (self.db.deleteDB != null) {
-        return self.db.deleteDB()
-      } else {
-        return Promise.resolve()
-      }
-    }).then(() => {
-      // remove existing event listener
-      super.destroy()
-    })
-  }
-  close () {
-    var self = this
-    this.share = null
     if (this.connector.destroy != null) {
       this.connector.destroy()
     } else {
       this.connector.disconnect()
     }
-    return this.db.whenTransactionsFinished().then(function () {
+    var self = this
-      self.db.destroyTypes()
+    this.db.requestTransaction(function * () {
-      // make sure to wait for all transactions before destroying the db
-      self.db.requestTransaction(function * () {
       yield* self.db.destroy()
-      })
+      self.connector = null
-      return self.db.whenTransactionsFinished()
+      self.db = null
     })
   }
 }
+
+if (typeof window !== 'undefined') {
+  window.Y = Y
+}

test/encode-decode.js

@@ -1,178 +0,0 @@
-import { test } from 'cutest'
-import Chance from 'chance'
-import Y from '../src/y.js'
-import { BinaryEncoder, BinaryDecoder } from '../src/Encoding.js'
-
-function testEncoding (t, write, read, val) {
-  let encoder = new BinaryEncoder()
-  write(encoder, val)
-  let reader = new BinaryDecoder(encoder.createBuffer())
-  let result = read(reader)
-  t.log(`string encode: ${JSON.stringify(val).length} bytes / binary encode: ${encoder.data.length} bytes`)
-  t.compare(val, result, 'Compare results')
-}
-
-const writeVarUint = (encoder, val) => encoder.writeVarUint(val)
-const readVarUint = decoder => decoder.readVarUint()
-
-test('varUint 1 byte', async function varUint1 (t) {
-  testEncoding(t, writeVarUint, readVarUint, 42)
-})
-
-test('varUint 2 bytes', async function varUint2 (t) {
-  testEncoding(t, writeVarUint, readVarUint, 1 << 9 | 3)
-  testEncoding(t, writeVarUint, readVarUint, 1 << 9 | 3)
-})
-test('varUint 3 bytes', async function varUint3 (t) {
-  testEncoding(t, writeVarUint, readVarUint, 1 << 17 | 1 << 9 | 3)
-})
-
-test('varUint 4 bytes', async function varUint4 (t) {
-  testEncoding(t, writeVarUint, readVarUint, 1 << 25 | 1 << 17 | 1 << 9 | 3)
-})
-
-test('varUint of 2839012934', async function varUint2839012934 (t) {
-  testEncoding(t, writeVarUint, readVarUint, 2839012934)
-})
-
-test('varUint random', async function varUintRandom (t) {
-  const chance = new Chance(t.getSeed() * Math.pow(Number.MAX_SAFE_INTEGER))
-  testEncoding(t, writeVarUint, readVarUint, chance.integer({min: 0, max: (1 << 28) - 1}))
-})
-
-test('varUint random user id', async function varUintRandomUserId (t) {
-  t.getSeed() // enforces that this test is repeated
-  testEncoding(t, writeVarUint, readVarUint, Y.utils.generateUserId())
-})
-
-const writeVarString = (encoder, val) => encoder.writeVarString(val)
-const readVarString = decoder => decoder.readVarString()
-
-test('varString', async function varString (t) {
-  testEncoding(t, writeVarString, readVarString, 'hello')
-  testEncoding(t, writeVarString, readVarString, 'test!')
-  testEncoding(t, writeVarString, readVarString, '☺☺☺')
-  testEncoding(t, writeVarString, readVarString, '1234')
-})
-
-test('varString random', async function varStringRandom (t) {
-  const chance = new Chance(t.getSeed() * 1000000000)
-  testEncoding(t, writeVarString, readVarString, chance.string())
-})
-
-const writeDelete = Y.Struct.Delete.binaryEncode
-const readDelete = Y.Struct.Delete.binaryDecode
-
-test('encode/decode Delete operation', async function binDelete (t) {
-  let op = {
-    target: [10, 3000],
-    length: 40000,
-    struct: 'Delete'
-  }
-  testEncoding(t, writeDelete, readDelete, op)
-})
-
-const writeInsert = Y.Struct.Insert.binaryEncode
-const readInsert = Y.Struct.Insert.binaryDecode
-
-test('encode/decode Insert operations', async function binInsert (t) {
-  testEncoding(t, writeInsert, readInsert, {
-    id: [1, 2],
-    right: [5, 6],
-    left: [3, 4],
-    origin: [7, 8],
-    parent: [9, 10],
-    struct: 'Insert',
-    content: ['a']
-  })
-
-  t.log('left === origin')
-  testEncoding(t, writeInsert, readInsert, {
-    id: [1, 2],
-    right: [5, 6],
-    left: [3, 4],
-    origin: [3, 4],
-    parent: [9, 10],
-    struct: 'Insert',
-    content: ['a']
-  })
-
-  t.log('parentsub')
-  testEncoding(t, writeInsert, readInsert, {
-    id: [1, 2],
-    right: [5, 6],
-    left: [3, 4],
-    origin: [3, 4],
-    parent: [9, 10],
-    parentSub: 'sub',
-    struct: 'Insert',
-    content: ['a']
-  })
-
-  t.log('opContent')
-  testEncoding(t, writeInsert, readInsert, {
-    id: [1, 2],
-    right: [5, 6],
-    left: [3, 4],
-    origin: [3, 4],
-    parent: [9, 10],
-    struct: 'Insert',
-    opContent: [1000, 10000]
-  })
-
-  t.log('mixed content')
-  testEncoding(t, writeInsert, readInsert, {
-    id: [1, 2],
-    right: [5, 6],
-    left: [3, 4],
-    origin: [3, 4],
-    parent: [9, 10],
-    struct: 'Insert',
-    content: ['a', 1]
-  })
-
-  t.log('origin is null')
-  testEncoding(t, writeInsert, readInsert, {
-    id: [1, 2],
-    right: [5, 6],
-    left: [3, 4],
-    origin: null,
-    parent: [9, 10],
-    struct: 'Insert',
-    content: ['a']
-  })
-
-  t.log('left = origin = right = null')
-  testEncoding(t, writeInsert, readInsert, {
-    id: [1, 2],
-    right: null,
-    left: null,
-    origin: null,
-    parent: [9, 10],
-    struct: 'Insert',
-    content: ['a']
-  })
-})
-
-const writeList = Y.Struct.List.binaryEncode
-const readList = Y.Struct.List.binaryDecode
-
-test('encode/decode List operations', async function binList (t) {
-  testEncoding(t, writeList, readList, {
-    struct: 'List',
-    id: [100, 33],
-    type: 'Array'
-  })
-})
-
-const writeMap = Y.Struct.Map.binaryEncode
-const readMap = Y.Struct.Map.binaryDecode
-
-test('encode/decode Map operations', async function binMap (t) {
-  testEncoding(t, writeMap, readMap, {
-    struct: 'Map',
-    id: [100, 33],
-    type: 'Map',
-    map: {}
-  })
-})

test/y-array.tests.js

@@ -1,374 +0,0 @@
-import { wait, initArrays, compareUsers, Y, flushAll, garbageCollectUsers, applyRandomTests } from '../tests-lib/helper.js'
-import { test, proxyConsole } from 'cutest'
-
-proxyConsole()
-
-test('basic spec', async function array0 (t) {
-  let { users, array0 } = await initArrays(t, { users: 2 })
-
-  array0.delete(0, 0)
-  t.assert(true, 'Does not throw when deleting zero elements with position 0')
-
-  let throwInvalidPosition = false
-  try {
-    array0.delete(1, 0)
-  } catch (e) {
-    throwInvalidPosition = true
-  }
-  t.assert(throwInvalidPosition, 'Throws when deleting zero elements with an invalid position')
-
-  array0.insert(0, ['A'])
-  array0.delete(1, 0)
-  t.assert(true, 'Does not throw when deleting zero elements with valid position 1')
-
-  await compareUsers(t, users)
-})
-
-test('insert three elements, try re-get property', async function array1 (t) {
-  var { users, array0, array1 } = await initArrays(t, { users: 2 })
-  array0.insert(0, [1, 2, 3])
-  t.compare(array0.toArray(), [1, 2, 3], '.toArray() works')
-  await flushAll(t, users)
-  t.compare(array1.toArray(), [1, 2, 3], '.toArray() works after sync')
-  await compareUsers(t, users)
-})
-
-test('concurrent insert (handle three conflicts)', async function array2 (t) {
-  var { users, array0, array1, array2 } = await initArrays(t, { users: 3 })
-  array0.insert(0, [0])
-  array1.insert(0, [1])
-  array2.insert(0, [2])
-
-  await compareUsers(t, users)
-})
-
-test('concurrent insert&delete (handle three conflicts)', async function array3 (t) {
-  var { users, array0, array1, array2 } = await initArrays(t, { users: 3 })
-  array0.insert(0, ['x', 'y', 'z'])
-  await flushAll(t, users)
-  array0.insert(1, [0])
-  array1.delete(0)
-  array1.delete(1, 1)
-  array2.insert(1, [2])
-
-  await compareUsers(t, users)
-})
-
-test('insertions work in late sync', async function array4 (t) {
-  var { users, array0, array1, array2 } = await initArrays(t, { users: 3 })
-  array0.insert(0, ['x', 'y'])
-  await flushAll(t, users)
-  users[1].disconnect()
-  users[2].disconnect()
-  array0.insert(1, ['user0'])
-  array1.insert(1, ['user1'])
-  array2.insert(1, ['user2'])
-  await users[1].reconnect()
-  await users[2].reconnect()
-  await compareUsers(t, users)
-})
-
-test('disconnect really prevents sending messages', async function array5 (t) {
-  var { users, array0, array1 } = await initArrays(t, { users: 3 })
-  array0.insert(0, ['x', 'y'])
-  await flushAll(t, users)
-  users[1].disconnect()
-  users[2].disconnect()
-  array0.insert(1, ['user0'])
-  array1.insert(1, ['user1'])
-  await wait(1000)
-  t.compare(array0.toArray(), ['x', 'user0', 'y'])
-  t.compare(array1.toArray(), ['x', 'user1', 'y'])
-  await users[1].reconnect()
-  await users[2].reconnect()
-  await compareUsers(t, users)
-})
-
-test('deletions in late sync', async function array6 (t) {
-  var { users, array0, array1 } = await initArrays(t, { users: 2 })
-  array0.insert(0, ['x', 'y'])
-  await flushAll(t, users)
-  await users[1].disconnect()
-  array1.delete(1, 1)
-  array0.delete(0, 2)
-  await wait()
-  await users[1].reconnect()
-  await compareUsers(t, users)
-})
-
-test('insert, then marge delete on sync', async function array7 (t) {
-  var { users, array0, array1 } = await initArrays(t, { users: 2 })
-  array0.insert(0, ['x', 'y', 'z'])
-  await flushAll(t, users)
-  await wait()
-  await users[0].disconnect()
-  array1.delete(0, 3)
-  await wait()
-  await users[0].reconnect()
-  await compareUsers(t, users)
-})
-
-function compareEvent (t, is, should) {
-  for (var key in should) {
-    t.assert(
-      should[key] === is[key] ||
-      JSON.stringify(should[key]) === JSON.stringify(is[key])
-    , 'event works as expected'
-    )
-  }
-}
-
-test('insert & delete events', async function array8 (t) {
-  var { array0, users } = await initArrays(t, { users: 2 })
-  var event
-  array0.observe(function (e) {
-    event = e
-  })
-  array0.insert(0, [0, 1, 2])
-  compareEvent(t, event, {
-    type: 'insert',
-    index: 0,
-    values: [0, 1, 2],
-    length: 3
-  })
-  array0.delete(0)
-  compareEvent(t, event, {
-    type: 'delete',
-    index: 0,
-    length: 1,
-    values: [0]
-  })
-  array0.delete(0, 2)
-  compareEvent(t, event, {
-    type: 'delete',
-    index: 0,
-    length: 2,
-    values: [1, 2]
-  })
-  await compareUsers(t, users)
-})
-
-test('insert & delete events for types', async function array9 (t) {
-  var { array0, users } = await initArrays(t, { users: 2 })
-  var event
-  array0.observe(function (e) {
-    event = e
-  })
-  array0.insert(0, [Y.Array])
-  compareEvent(t, event, {
-    type: 'insert',
-    object: array0,
-    index: 0,
-    length: 1
-  })
-  var type = array0.get(0)
-  t.assert(type._model != null, 'Model of type is defined')
-  array0.delete(0)
-  compareEvent(t, event, {
-    type: 'delete',
-    object: array0,
-    index: 0,
-    length: 1
-  })
-  await compareUsers(t, users)
-})
-
-test('insert & delete events for types (2)', async function array10 (t) {
-  var { array0, users } = await initArrays(t, { users: 2 })
-  var events = []
-  array0.observe(function (e) {
-    events.push(e)
-  })
-  array0.insert(0, ['hi', Y.Map])
-  compareEvent(t, events[0], {
-    type: 'insert',
-    object: array0,
-    index: 0,
-    length: 1,
-    values: ['hi']
-  })
-  compareEvent(t, events[1], {
-    type: 'insert',
-    object: array0,
-    index: 1,
-    length: 1
-  })
-  array0.delete(1)
-  compareEvent(t, events[2], {
-    type: 'delete',
-    object: array0,
-    index: 1,
-    length: 1
-  })
-  await compareUsers(t, users)
-})
-
-test('garbage collector', async function gc1 (t) {
-  var { users, array0 } = await initArrays(t, { users: 3 })
-
-  array0.insert(0, ['x', 'y', 'z'])
-  await flushAll(t, users)
-  users[0].disconnect()
-  array0.delete(0, 3)
-  await wait()
-  await users[0].reconnect()
-  await flushAll(t, users)
-  await garbageCollectUsers(t, users)
-  await compareUsers(t, users)
-})
-
-test('event has correct value when setting a primitive on a YArray (same user)', async function array11 (t) {
-  var { array0, users } = await initArrays(t, { users: 3 })
-
-  var event
-  array0.observe(function (e) {
-    event = e
-  })
-  array0.insert(0, ['stuff'])
-  t.assert(event.values[0] === event.object.get(0), 'compare value with get method')
-  t.assert(event.values[0] === 'stuff', 'check that value is actually present')
-  t.assert(event.values[0] === array0.toArray()[0], '.toArray works as expected')
-  await compareUsers(t, users)
-})
-
-test('event has correct value when setting a primitive on a YArray (received from another user)', async function array12 (t) {
-  var { users, array0, array1 } = await initArrays(t, { users: 3 })
-
-  var event
-  array0.observe(function (e) {
-    event = e
-  })
-  array1.insert(0, ['stuff'])
-  await flushAll(t, users)
-  t.assert(event.values[0] === event.object.get(0), 'compare value with get method')
-  t.assert(event.values[0] === 'stuff', 'check that value is actually present')
-  t.assert(event.values[0] === array0.toArray()[0], '.toArray works as expected')
-  await compareUsers(t, users)
-})
-
-test('event has correct value when setting a type on a YArray (same user)', async function array13 (t) {
-  var { array0, users } = await initArrays(t, { users: 3 })
-
-  var event
-  array0.observe(function (e) {
-    event = e
-  })
-  array0.insert(0, [Y.Array])
-  t.assert(event.values[0] === event.object.get(0), 'compare value with get method')
-  t.assert(event.values[0] != null, 'event.value exists')
-  t.assert(event.values[0] === array0.toArray()[0], '.toArray works as expected')
-  await compareUsers(t, users)
-})
-test('event has correct value when setting a type on a YArray (ops received from another user)', async function array14 (t) {
-  var { users, array0, array1 } = await initArrays(t, { users: 3 })
-
-  var event
-  array0.observe(function (e) {
-    event = e
-  })
-  array1.insert(0, [Y.Array])
-  await flushAll(t, users)
-  t.assert(event.values[0] === event.object.get(0), 'compare value with get method')
-  t.assert(event.values[0] != null, 'event.value exists')
-  t.assert(event.values[0] === array0.toArray()[0], '.toArray works as expected')
-  await compareUsers(t, users)
-})
-
-var _uniqueNumber = 0
-function getUniqueNumber () {
-  return _uniqueNumber++
-}
-
-var arrayTransactions = [
-  function insert (t, user, chance) {
-    var uniqueNumber = getUniqueNumber()
-    var content = []
-    var len = chance.integer({ min: 1, max: 4 })
-    for (var i = 0; i < len; i++) {
-      content.push(uniqueNumber)
-    }
-    var pos = chance.integer({ min: 0, max: user.share.array.length })
-    user.share.array.insert(pos, content)
-  },
-  function insertTypeArray (t, user, chance) {
-    var pos = chance.integer({ min: 0, max: user.share.array.length })
-    user.share.array.insert(pos, [Y.Array])
-    var array2 = user.share.array.get(pos)
-    array2.insert(0, [1, 2, 3, 4])
-  },
-  function insertTypeMap (t, user, chance) {
-    var pos = chance.integer({ min: 0, max: user.share.array.length })
-    user.share.array.insert(pos, [Y.Map])
-    var map = user.share.array.get(pos)
-    map.set('someprop', 42)
-    map.set('someprop', 43)
-    map.set('someprop', 44)
-  },
-  function _delete (t, user, chance) {
-    var length = user.share.array._content.length
-    if (length > 0) {
-      var pos = chance.integer({ min: 0, max: length - 1 })
-      var delLength = chance.integer({ min: 1, max: Math.min(2, length - pos) })
-      if (user.share.array._content[pos].type != null) {
-        if (chance.bool()) {
-          var type = user.share.array.get(pos)
-          if (type instanceof Y.Array.typeDefinition.class) {
-            if (type._content.length > 0) {
-              pos = chance.integer({ min: 0, max: type._content.length - 1 })
-              delLength = chance.integer({ min: 0, max: Math.min(2, type._content.length - pos) })
-              type.delete(pos, delLength)
-            }
-          } else {
-            type.delete('someprop')
-          }
-        } else {
-          user.share.array.delete(pos, delLength)
-        }
-      } else {
-        user.share.array.delete(pos, delLength)
-      }
-    }
-  }
-]
-
-test('y-array: Random tests (42)', async function randomArray42 (t) {
-  await applyRandomTests(t, arrayTransactions, 42)
-})
-
-test('y-array: Random tests (43)', async function randomArray43 (t) {
-  await applyRandomTests(t, arrayTransactions, 43)
-})
-
-test('y-array: Random tests (44)', async function randomArray44 (t) {
-  await applyRandomTests(t, arrayTransactions, 44)
-})
-
-test('y-array: Random tests (45)', async function randomArray45 (t) {
-  await applyRandomTests(t, arrayTransactions, 45)
-})
-
-test('y-array: Random tests (46)', async function randomArray46 (t) {
-  await applyRandomTests(t, arrayTransactions, 46)
-})
-
-test('y-array: Random tests (47)', async function randomArray47 (t) {
-  await applyRandomTests(t, arrayTransactions, 47)
-})
-
-/*
-test('y-array: Random tests (200)', async function randomArray200 (t) {
-  await applyRandomTests(t, arrayTransactions, 200)
-})
-
-test('y-array: Random tests (300)', async function randomArray300 (t) {
-  await applyRandomTests(t, arrayTransactions, 300)
-})
-
-test('y-array: Random tests (400)', async function randomArray400 (t) {
-  await applyRandomTests(t, arrayTransactions, 400)
-})
-
-test('y-array: Random tests (500)', async function randomArray500 (t) {
-  await applyRandomTests(t, arrayTransactions, 500)
-})
-*/

test/y-map.tests.js

@@ -1,371 +0,0 @@
-import { initArrays, compareUsers, Y, flushAll, applyRandomTests } from '../tests-lib/helper.js'
-import { test, proxyConsole } from 'cutest'
-
-proxyConsole()
-
-test('basic map tests', async function map0 (t) {
-  let { users, map0, map1, map2 } = await initArrays(t, { users: 3 })
-  users[2].disconnect()
-
-  map0.set('number', 1)
-  map0.set('string', 'hello Y')
-  map0.set('object', { key: { key2: 'value' } })
-  map0.set('y-map', Y.Map)
-  let map = map0.get('y-map')
-  map.set('y-array', Y.Array)
-  let array = map.get('y-array')
-  array.insert(0, [0])
-  array.insert(0, [-1])
-
-  t.assert(map0.get('number') === 1, 'client 0 computed the change (number)')
-  t.assert(map0.get('string') === 'hello Y', 'client 0 computed the change (string)')
-  t.compare(map0.get('object'), { key: { key2: 'value' } }, 'client 0 computed the change (object)')
-  t.assert(map0.get('y-map').get('y-array').get(0) === -1, 'client 0 computed the change (type)')
-
-  await users[2].reconnect()
-  await flushAll(t, users)
-
-  t.assert(map1.get('number') === 1, 'client 1 received the update (number)')
-  t.assert(map1.get('string') === 'hello Y', 'client 1 received the update (string)')
-  t.compare(map1.get('object'), { key: { key2: 'value' } }, 'client 1 received the update (object)')
-  t.assert(map1.get('y-map').get('y-array').get(0) === -1, 'client 1 received the update (type)')
-
-  // compare disconnected user
-  t.assert(map2.get('number') === 1, 'client 2 received the update (number) - was disconnected')
-  t.assert(map2.get('string') === 'hello Y', 'client 2 received the update (string) - was disconnected')
-  t.compare(map2.get('object'), { key: { key2: 'value' } }, 'client 2 received the update (object) - was disconnected')
-  t.assert(map2.get('y-map').get('y-array').get(0) === -1, 'client 2 received the update (type) - was disconnected')
-  await compareUsers(t, users)
-})
-
-test('Basic get&set of Map property (converge via sync)', async function map1 (t) {
-  let { users, map0 } = await initArrays(t, { users: 2 })
-  map0.set('stuff', 'stuffy')
-  t.compare(map0.get('stuff'), 'stuffy')
-
-  await flushAll(t, users)
-
-  for (let user of users) {
-    var u = user.share.map
-    t.compare(u.get('stuff'), 'stuffy')
-  }
-  await compareUsers(t, users)
-})
-
-test('Map can set custom types (Map)', async function map2 (t) {
-  let { users, map0 } = await initArrays(t, { users: 2 })
-  var map = map0.set('Map', Y.Map)
-  map.set('one', 1)
-  map = map0.get('Map')
-  t.compare(map.get('one'), 1)
-  await compareUsers(t, users)
-})
-
-test('Map can set custom types (Map) - get also returns the type', async function map3 (t) {
-  let { users, map0 } = await initArrays(t, { users: 2 })
-  map0.set('Map', Y.Map)
-  var map = map0.get('Map')
-  map.set('one', 1)
-  map = map0.get('Map')
-  t.compare(map.get('one'), 1)
-  await compareUsers(t, users)
-})
-
-test('Map can set custom types (Array)', async function map4 (t) {
-  let { users, map0 } = await initArrays(t, { users: 2 })
-  var array = map0.set('Array', Y.Array)
-  array.insert(0, [1, 2, 3])
-  array = map0.get('Array')
-  t.compare(array.toArray(), [1, 2, 3])
-  await compareUsers(t, users)
-})
-
-test('Basic get&set of Map property (converge via update)', async function map5 (t) {
-  let { users, map0 } = await initArrays(t, { users: 2 })
-  map0.set('stuff', 'stuffy')
-  t.compare(map0.get('stuff'), 'stuffy')
-
-  await flushAll(t, users)
-
-  for (let user of users) {
-    var u = user.share.map
-    t.compare(u.get('stuff'), 'stuffy')
-  }
-  await compareUsers(t, users)
-})
-
-test('Basic get&set of Map property (handle conflict)', async function map6 (t) {
-  let { users, map0, map1 } = await initArrays(t, { users: 3 })
-  map0.set('stuff', 'c0')
-  map1.set('stuff', 'c1')
-
-  await flushAll(t, users)
-
-  for (let user of users) {
-    var u = user.share.map
-    t.compare(u.get('stuff'), 'c0')
-  }
-  await compareUsers(t, users)
-})
-
-test('Basic get&set&delete of Map property (handle conflict)', async function map7 (t) {
-  let { users, map0, map1 } = await initArrays(t, { users: 3 })
-  map0.set('stuff', 'c0')
-  map0.delete('stuff')
-  map1.set('stuff', 'c1')
-  await flushAll(t, users)
-  for (let user of users) {
-    var u = user.share.map
-    t.assert(u.get('stuff') === undefined)
-  }
-  await compareUsers(t, users)
-})
-
-test('Basic get&set of Map property (handle three conflicts)', async function map8 (t) {
-  let { users, map0, map1, map2 } = await initArrays(t, { users: 3 })
-  map0.set('stuff', 'c0')
-  map1.set('stuff', 'c1')
-  map1.set('stuff', 'c2')
-  map2.set('stuff', 'c3')
-  await flushAll(t, users)
-  for (let user of users) {
-    var u = user.share.map
-    t.compare(u.get('stuff'), 'c0')
-  }
-  await compareUsers(t, users)
-})
-
-test('Basic get&set&delete of Map property (handle three conflicts)', async function map9 (t) {
-  let { users, map0, map1, map2, map3 } = await initArrays(t, { users: 4 })
-  map0.set('stuff', 'c0')
-  map1.set('stuff', 'c1')
-  map1.set('stuff', 'c2')
-  map2.set('stuff', 'c3')
-  await flushAll(t, users)
-  map0.set('stuff', 'deleteme')
-  map0.delete('stuff')
-  map1.set('stuff', 'c1')
-  map2.set('stuff', 'c2')
-  map3.set('stuff', 'c3')
-  await flushAll(t, users)
-  for (let user of users) {
-    var u = user.share.map
-    t.assert(u.get('stuff') === undefined)
-  }
-  await compareUsers(t, users)
-})
-
-test('observePath properties', async function map10 (t) {
-  let { users, map0, map1, map2 } = await initArrays(t, { users: 3 })
-  let map
-  map0.observePath(['map'], function (map) {
-    if (map != null) {
-      map.set('yay', 4)
-    }
-  })
-  map1.set('map', Y.Map)
-  await flushAll(t, users)
-  map = map2.get('map')
-  t.compare(map.get('yay'), 4)
-  await compareUsers(t, users)
-})
-
-test('observe deep properties', async function map11 (t) {
-  let { users, map1, map2, map3 } = await initArrays(t, { users: 4 })
-  var _map1 = map1.set('map', Y.Map)
-  var calls = 0
-  var dmapid
-  _map1.observe(function (event) {
-    calls++
-    t.compare(event.name, 'deepmap')
-    dmapid = event.object.opContents.deepmap
-  })
-  await flushAll(t, users)
-  var _map3 = map3.get('map')
-  _map3.set('deepmap', Y.Map)
-  await flushAll(t, users)
-  var _map2 = map2.get('map')
-  _map2.set('deepmap', Y.Map)
-  await flushAll(t, users)
-  var dmap1 = _map1.get('deepmap')
-  var dmap2 = _map2.get('deepmap')
-  var dmap3 = _map3.get('deepmap')
-  t.assert(calls > 0)
-  t.compare(dmap1._model, dmap2._model)
-  t.compare(dmap1._model, dmap3._model)
-  t.compare(dmap1._model, dmapid)
-  await compareUsers(t, users)
-})
-
-test('observes using observePath', async function map12 (t) {
-  let { users, map0 } = await initArrays(t, { users: 2 })
-  var pathes = []
-  var calls = 0
-  map0.observeDeep(function (event) {
-    pathes.push(event.path)
-    calls++
-  })
-  map0.set('map', Y.Map)
-  map0.get('map').set('array', Y.Array)
-  map0.get('map').get('array').insert(0, ['content'])
-  t.assert(calls === 3)
-  t.compare(pathes, [[], ['map'], ['map', 'array']])
-  await compareUsers(t, users)
-})
-
-function compareEvent (t, is, should) {
-  for (var key in should) {
-    t.assert(should[key] === is[key])
-  }
-}
-
-test('throws add & update & delete events (with type and primitive content)', async function map13 (t) {
-  let { users, map0 } = await initArrays(t, { users: 2 })
-  var event
-  await flushAll(t, users)
-  map0.observe(function (e) {
-    event = e // just put it on event, should be thrown synchronously anyway
-  })
-  map0.set('stuff', 4)
-  compareEvent(t, event, {
-    type: 'add',
-    object: map0,
-    name: 'stuff'
-  })
-  // update, oldValue is in contents
-  map0.set('stuff', Y.Array)
-  compareEvent(t, event, {
-    type: 'update',
-    object: map0,
-    name: 'stuff',
-    oldValue: 4
-  })
-  var replacedArray = map0.get('stuff')
-  // update, oldValue is in opContents
-  map0.set('stuff', 5)
-  var array = event.oldValue
-  t.compare(array._model, replacedArray._model)
-  // delete
-  map0.delete('stuff')
-  compareEvent(t, event, {
-    type: 'delete',
-    name: 'stuff',
-    object: map0,
-    oldValue: 5
-  })
-  await compareUsers(t, users)
-})
-
-test('event has correct value when setting a primitive on a YMap (same user)', async function map14 (t) {
-  let { users, map0 } = await initArrays(t, { users: 3 })
-  var event
-  await flushAll(t, users)
-  map0.observe(function (e) {
-    event = e
-  })
-  map0.set('stuff', 2)
-  t.compare(event.value, event.object.get(event.name))
-  await compareUsers(t, users)
-})
-
-test('event has correct value when setting a primitive on a YMap (received from another user)', async function map15 (t) {
-  let { users, map0, map1 } = await initArrays(t, { users: 3 })
-  var event
-  await flushAll(t, users)
-  map0.observe(function (e) {
-    event = e
-  })
-  map1.set('stuff', 2)
-  await flushAll(t, users)
-  t.compare(event.value, event.object.get(event.name))
-  await compareUsers(t, users)
-})
-
-test('event has correct value when setting a type on a YMap (same user)', async function map16 (t) {
-  let { users, map0 } = await initArrays(t, { users: 3 })
-  var event
-  await flushAll(t, users)
-  map0.observe(function (e) {
-    event = e
-  })
-  map0.set('stuff', Y.Map)
-  t.compare(event.value._model, event.object.get(event.name)._model)
-  await compareUsers(t, users)
-})
-
-test('event has correct value when setting a type on a YMap (ops received from another user)', async function map17 (t) {
-  let { users, map0, map1 } = await initArrays(t, { users: 3 })
-  var event
-  await flushAll(t, users)
-  map0.observe(function (e) {
-    event = e
-  })
-  map1.set('stuff', Y.Map)
-  await flushAll(t, users)
-  t.compare(event.value._model, event.object.get(event.name)._model)
-  await compareUsers(t, users)
-})
-
-var mapTransactions = [
-  function set (t, user, chance) {
-    let key = chance.pickone(['one', 'two'])
-    var value = chance.string()
-    user.share.map.set(key, value)
-  },
-  function setType (t, user, chance) {
-    let key = chance.pickone(['one', 'two'])
-    var value = chance.pickone([Y.Array, Y.Map])
-    let type = user.share.map.set(key, value)
-    if (value === Y.Array) {
-      type.insert(0, [1, 2, 3, 4])
-    } else {
-      type.set('deepkey', 'deepvalue')
-    }
-  },
-  function _delete (t, user, chance) {
-    let key = chance.pickone(['one', 'two'])
-    user.share.map.delete(key)
-  }
-]
-
-test('y-map: Random tests (42)', async function randomMap42 (t) {
-  await applyRandomTests(t, mapTransactions, 42)
-})
-
-test('y-map: Random tests (43)', async function randomMap43 (t) {
-  await applyRandomTests(t, mapTransactions, 43)
-})
-
-test('y-map: Random tests (44)', async function randomMap44 (t) {
-  await applyRandomTests(t, mapTransactions, 44)
-})
-
-test('y-map: Random tests (45)', async function randomMap45 (t) {
-  await applyRandomTests(t, mapTransactions, 45)
-})
-
-test('y-map: Random tests (46)', async function randomMap46 (t) {
-  await applyRandomTests(t, mapTransactions, 46)
-})
-
-test('y-map: Random tests (47)', async function randomMap47 (t) {
-  await applyRandomTests(t, mapTransactions, 47)
-})
-
-/*
-test('y-map: Random tests (200)', async function randomMap200 (t) {
-  await applyRandomTests(t, mapTransactions, 200)
-})
-
-test('y-map: Random tests (300)', async function randomMap300 (t) {
-  await applyRandomTests(t, mapTransactions, 300)
-})
-
-test('y-map: Random tests (400)', async function randomMap400 (t) {
-  await applyRandomTests(t, mapTransactions, 400)
-})
-
-test('y-map: Random tests (500)', async function randomMap500 (t) {
-  await applyRandomTests(t, mapTransactions, 500)
-})
-*/

test/y-xml.tests.js

@@ -1,288 +0,0 @@
-import { wait, initArrays, compareUsers, Y, flushAll, applyRandomTests } from '../../yjs/tests-lib/helper.js'
-import { test } from 'cutest'
-
-test('set property', async function xml0 (t) {
-  var { users, xml0, xml1 } = await initArrays(t, { users: 2 })
-  xml0.setAttribute('height', 10)
-  t.assert(xml0.getAttribute('height') === 10, 'Simple set+get works')
-  await flushAll(t, users)
-  t.assert(xml1.getAttribute('height') === 10, 'Simple set+get works (remote)')
-  await compareUsers(t, users)
-})
-
-test('events', async function xml1 (t) {
-  var { users, xml0, xml1 } = await initArrays(t, { users: 2 })
-  var event
-  var remoteEvent
-  let expectedEvent
-  xml0.observe(function (e) {
-    delete e._content
-    delete e.nodes
-    delete e.values
-    event = e
-  })
-  xml1.observe(function (e) {
-    delete e._content
-    delete e.nodes
-    delete e.values
-    remoteEvent = e
-  })
-  xml0.setAttribute('key', 'value')
-  expectedEvent = {
-    type: 'attributeChanged',
-    value: 'value',
-    name: 'key'
-  }
-  t.compare(event, expectedEvent, 'attribute changed event')
-  await flushAll(t, users)
-  t.compare(remoteEvent, expectedEvent, 'attribute changed event (remote)')
-  // check attributeRemoved
-  xml0.removeAttribute('key')
-  expectedEvent = {
-    type: 'attributeRemoved',
-    name: 'key'
-  }
-  t.compare(event, expectedEvent, 'attribute deleted event')
-  await flushAll(t, users)
-  t.compare(remoteEvent, expectedEvent, 'attribute deleted event (remote)')
-  // test childInserted event
-  expectedEvent = {
-    type: 'childInserted',
-    index: 0
-  }
-  xml0.insert(0, [Y.XmlText('some text')])
-  t.compare(event, expectedEvent, 'child inserted event')
-  await flushAll(t, users)
-  t.compare(remoteEvent, expectedEvent, 'child inserted event (remote)')
-  // test childRemoved
-  xml0.delete(0)
-  expectedEvent = {
-    type: 'childRemoved',
-    index: 0
-  }
-  t.compare(event, expectedEvent, 'child deleted event')
-  await flushAll(t, users)
-  t.compare(remoteEvent, expectedEvent, 'child deleted event (remote)')
-  await compareUsers(t, users)
-})
-
-test('attribute modifications (y -> dom)', async function xml2 (t) {
-  var { users, xml0 } = await initArrays(t, { users: 3 })
-  let dom0 = xml0.getDom()
-  xml0.setAttribute('height', '100px')
-  await wait()
-  t.assert(dom0.getAttribute('height') === '100px', 'setAttribute')
-  xml0.removeAttribute('height')
-  await wait()
-  t.assert(dom0.getAttribute('height') == null, 'removeAttribute')
-  xml0.setAttribute('class', 'stuffy stuff')
-  await wait()
-  t.assert(dom0.getAttribute('class') === 'stuffy stuff', 'set class attribute')
-  await compareUsers(t, users)
-})
-
-test('attribute modifications (dom -> y)', async function xml3 (t) {
-  var { users, xml0 } = await initArrays(t, { users: 3 })
-  let dom0 = xml0.getDom()
-  dom0.setAttribute('height', '100px')
-  await wait()
-  t.assert(xml0.getAttribute('height') === '100px', 'setAttribute')
-  dom0.removeAttribute('height')
-  await wait()
-  t.assert(xml0.getAttribute('height') == null, 'removeAttribute')
-  dom0.setAttribute('class', 'stuffy stuff')
-  await wait()
-  t.assert(xml0.getAttribute('class') === 'stuffy stuff', 'set class attribute')
-  await compareUsers(t, users)
-})
-
-test('element insert (dom -> y)', async function xml4 (t) {
-  var { users, xml0 } = await initArrays(t, { users: 3 })
-  let dom0 = xml0.getDom()
-  dom0.insertBefore(document.createTextNode('some text'), null)
-  dom0.insertBefore(document.createElement('p'), null)
-  await wait()
-  t.assert(xml0.get(0).toString() === 'some text', 'Retrieve Text Node')
-  t.assert(xml0.get(1).nodeName === 'P', 'Retrieve Element node')
-  await compareUsers(t, users)
-})
-
-test('element insert (y -> dom)', async function xml5 (t) {
-  var { users, xml0 } = await initArrays(t, { users: 3 })
-  let dom0 = xml0.getDom()
-  xml0.insert(0, [Y.XmlText('some text')])
-  xml0.insert(1, [Y.XmlElement('p')])
-  t.assert(dom0.childNodes[0].textContent === 'some text', 'Retrieve Text node')
-  t.assert(dom0.childNodes[1].nodeName === 'P', 'Retrieve Element node')
-  await compareUsers(t, users)
-})
-
-test('y on insert, then delete (dom -> y)', async function xml6 (t) {
-  var { users, xml0 } = await initArrays(t, { users: 3 })
-  let dom0 = xml0.getDom()
-  dom0.insertBefore(document.createElement('p'), null)
-  await wait()
-  t.assert(xml0.length === 1, 'one node present')
-  dom0.childNodes[0].remove()
-  await wait()
-  t.assert(xml0.length === 0, 'no node present after delete')
-  await compareUsers(t, users)
-})
-
-test('y on insert, then delete (y -> dom)', async function xml7 (t) {
-  var { users, xml0 } = await initArrays(t, { users: 3 })
-  let dom0 = xml0.getDom()
-  xml0.insert(0, [Y.XmlElement('p')])
-  t.assert(dom0.childNodes[0].nodeName === 'P', 'Get inserted element from dom')
-  xml0.delete(0, 1)
-  t.assert(dom0.childNodes.length === 0, '#childNodes is empty after delete')
-  await compareUsers(t, users)
-})
-
-test('delete consecutive (1) (Text)', async function xml8 (t) {
-  var { users, xml0 } = await initArrays(t, { users: 3 })
-  let dom0 = xml0.getDom()
-  xml0.insert(0, ['1', '2', '3'].map(Y.XmlText))
-  await wait()
-  xml0.delete(1, 2)
-  await wait()
-  t.assert(xml0.length === 1, 'check length (y)')
-  t.assert(dom0.childNodes.length === 1, 'check length (dom)')
-  t.assert(dom0.childNodes[0].textContent === '1', 'check content')
-  await compareUsers(t, users)
-})
-
-test('delete consecutive (2) (Text)', async function xml9 (t) {
-  var { users, xml0 } = await initArrays(t, { users: 3 })
-  let dom0 = xml0.getDom()
-  xml0.insert(0, ['1', '2', '3'].map(Y.XmlText))
-  await wait()
-  xml0.delete(0, 1)
-  xml0.delete(1, 1)
-  await wait()
-  t.assert(xml0.length === 1, 'check length (y)')
-  t.assert(dom0.childNodes.length === 1, 'check length (dom)')
-  t.assert(dom0.childNodes[0].textContent === '2', 'check content')
-  await compareUsers(t, users)
-})
-
-test('delete consecutive (1) (Element)', async function xml10 (t) {
-  var { users, xml0 } = await initArrays(t, { users: 3 })
-  let dom0 = xml0.getDom()
-  xml0.insert(0, [Y.XmlElement('A'), Y.XmlElement('B'), Y.XmlElement('C')])
-  await wait()
-  xml0.delete(1, 2)
-  await wait()
-  t.assert(xml0.length === 1, 'check length (y)')
-  t.assert(dom0.childNodes.length === 1, 'check length (dom)')
-  t.assert(dom0.childNodes[0].nodeName === 'A', 'check content')
-  await compareUsers(t, users)
-})
-
-test('delete consecutive (2) (Element)', async function xml11 (t) {
-  var { users, xml0 } = await initArrays(t, { users: 3 })
-  let dom0 = xml0.getDom()
-  xml0.insert(0, [Y.XmlElement('A'), Y.XmlElement('B'), Y.XmlElement('C')])
-  await wait()
-  xml0.delete(0, 1)
-  xml0.delete(1, 1)
-  await wait()
-  t.assert(xml0.length === 1, 'check length (y)')
-  t.assert(dom0.childNodes.length === 1, 'check length (dom)')
-  t.assert(dom0.childNodes[0].nodeName === 'B', 'check content')
-  await compareUsers(t, users)
-})
-
-test('Receive a bunch of elements (with disconnect)', async function xml12 (t) {
-  var { users, xml0, xml1 } = await initArrays(t, { users: 3 })
-  let dom0 = xml0.getDom()
-  let dom1 = xml1.getDom()
-  users[1].disconnect()
-  xml0.insert(0, [Y.XmlElement('A'), Y.XmlElement('B'), Y.XmlElement('C')])
-  xml0.insert(0, [Y.XmlElement('X'), Y.XmlElement('Y'), Y.XmlElement('Z')])
-  await users[1].reconnect()
-  await flushAll(t, users)
-  t.assert(xml0.length === 6, 'check length (y)')
-  t.assert(xml1.length === 6, 'check length (y) (reconnected user)')
-  t.assert(dom0.childNodes.length === 6, 'check length (dom)')
-  t.assert(dom1.childNodes.length === 6, 'check length (dom) (reconnected user)')
-  await compareUsers(t, users)
-})
-
-// TODO: move elements
-var xmlTransactions = [
-  function attributeChange (t, user, chance) {
-    user.share.xml.getDom().setAttribute(chance.word(), chance.word())
-  },
-  function insertText (t, user, chance) {
-    let dom = user.share.xml.getDom()
-    var succ = dom.children.length > 0 ? chance.pickone(dom.children) : null
-    dom.insertBefore(document.createTextNode(chance.word()), succ)
-  },
-  function insertDom (t, user, chance) {
-    let dom = user.share.xml.getDom()
-    var succ = dom.children.length > 0 ? chance.pickone(dom.children) : null
-    dom.insertBefore(document.createElement(chance.word()), succ)
-  },
-  function deleteChild (t, user, chance) {
-    let dom = user.share.xml.getDom()
-    if (dom.childNodes.length > 0) {
-      var d = chance.pickone(dom.childNodes)
-      d.remove()
-    }
-  },
-  function insertTextSecondLayer (t, user, chance) {
-    let dom = user.share.xml.getDom()
-    if (dom.children.length > 0) {
-      let dom2 = chance.pickone(dom.children)
-      let succ = dom2.childNodes.length > 0 ? chance.pickone(dom2.childNodes) : null
-      dom2.insertBefore(document.createTextNode(chance.word()), succ)
-    }
-  },
-  function insertDomSecondLayer (t, user, chance) {
-    let dom = user.share.xml.getDom()
-    if (dom.children.length > 0) {
-      let dom2 = chance.pickone(dom.children)
-      let succ = dom2.childNodes.length > 0 ? chance.pickone(dom2.childNodes) : null
-      dom2.insertBefore(document.createElement(chance.word()), succ)
-    }
-  },
-  function deleteChildSecondLayer (t, user, chance) {
-    let dom = user.share.xml.getDom()
-    if (dom.children.length > 0) {
-      let dom2 = chance.pickone(dom.children)
-      if (dom2.childNodes.length > 0) {
-        let d = chance.pickone(dom2.childNodes)
-        d.remove()
-      }
-    }
-  }
-]
-
-test('y-xml: Random tests (10)', async function randomXml10 (t) {
-  await applyRandomTests(t, xmlTransactions, 10)
-})
-
-test('y-xml: Random tests (42)', async function randomXml42 (t) {
-  await applyRandomTests(t, xmlTransactions, 42)
-})
-
-test('y-xml: Random tests (43)', async function randomXml43 (t) {
-  await applyRandomTests(t, xmlTransactions, 43)
-})
-
-test('y-xml: Random tests (44)', async function randomXml44 (t) {
-  await applyRandomTests(t, xmlTransactions, 44)
-})
-
-test('y-xml: Random tests (45)', async function randomXml45 (t) {
-  await applyRandomTests(t, xmlTransactions, 45)
-})
-
-test('y-xml: Random tests (46)', async function randomXml46 (t) {
-  await applyRandomTests(t, xmlTransactions, 46)
-})
-
-test('y-xml: Random tests (47)', async function randomXml47 (t) {
-  await applyRandomTests(t, xmlTransactions, 47)
-})

tests-lib/helper.js

@@ -1,310 +0,0 @@
-
-import _Y from '../../yjs/src/y.js'
-
-import yMemory from '../../y-memory/src/y-memory.js'
-import yArray from '../../y-array/src/y-array.js'
-import yText from '../../y-text/src/Text.js'
-import yMap from '../../y-map/src/Map.js'
-import yXml from '../../y-xml/src/y-xml.js'
-import yTest from './test-connector.js'
-
-import Chance from 'chance'
-
-export let Y = _Y
-
-Y.extend(yMemory, yArray, yText, yMap, yTest, yXml)
-
-export var database = { name: 'memory' }
-export var connector = { name: 'test', url: 'http://localhost:1234' }
-
-function * getStateSet () {
-  var ss = {}
-  yield * this.ss.iterate(this, null, null, function * (n) {
-    var user = n.id[0]
-    var clock = n.clock
-    ss[user] = clock
-  })
-  return ss
-}
-
-function * getDeleteSet () {
-  var ds = {}
-  yield * this.ds.iterate(this, null, null, function * (n) {
-    var user = n.id[0]
-    var counter = n.id[1]
-    var len = n.len
-    var gc = n.gc
-    var dv = ds[user]
-    if (dv === void 0) {
-      dv = []
-      ds[user] = dv
-    }
-    dv.push([counter, len, gc])
-  })
-  return ds
-}
-
-export async function garbageCollectUsers (t, users) {
-  await flushAll(t, users)
-  await Promise.all(users.map(u => u.db.emptyGarbageCollector()))
-}
-
-export function attrsToObject (attrs) {
-  let obj = {}
-  for (var i = 0; i < attrs.length; i++) {
-    let attr = attrs[i]
-    obj[attr.name] = attr.value
-  }
-  return obj
-}
-
-export function domToJson (dom) {
-  if (dom.nodeType === document.TEXT_NODE) {
-    return dom.textContent
-  } else if (dom.nodeType === document.ELEMENT_NODE) {
-    let attributes = attrsToObject(dom.attributes)
-    let children = Array.from(dom.childNodes.values()).map(domToJson)
-    return {
-      name: dom.nodeName,
-      children: children,
-      attributes: attributes
-    }
-  } else {
-    throw new Error('Unsupported node type')
-  }
-}
-
-/*
- * 1. reconnect and flush all
- * 2. user 0 gc
- * 3. get type content
- * 4. disconnect & reconnect all (so gc is propagated)
- * 5. compare os, ds, ss
- */
-export async function compareUsers (t, users) {
-  await Promise.all(users.map(u => u.reconnect()))
-  if (users[0].connector.testRoom == null) {
-    await wait(100)
-  }
-  await flushAll(t, users)
-  await wait()
-  await flushAll(t, users)
-
-  var userArrayValues = users.map(u => u.share.array._content.map(c => c.val || JSON.stringify(c.type)))
-  function valueToComparable (v) {
-    if (v != null && v._model != null) {
-      return v._model
-    } else {
-      return v || null
-    }
-  }
-  var userMapOneValues = users.map(u => u.share.map.get('one')).map(valueToComparable)
-  var userMapTwoValues = users.map(u => u.share.map.get('two')).map(valueToComparable)
-  var userXmlValues = users.map(u => u.share.xml.getDom()).map(domToJson)
-
-  await users[0].db.garbageCollect()
-  await users[0].db.garbageCollect()
-
-  // disconnect all except user 0
-  await Promise.all(users.slice(1).map(async u =>
-    u.disconnect()
-  ))
-  if (users[0].connector.testRoom == null) {
-    await wait(100)
-  }
-  // reconnect all
-  await Promise.all(users.map(u => u.reconnect()))
-  if (users[0].connector.testRoom == null) {
-    await wait(100)
-  }
-  await users[0].connector.testRoom.flushAll(users)
-  await Promise.all(users.map(u =>
-    new Promise(function (resolve) {
-      u.connector.whenSynced(resolve)
-    })
-  ))
-  let filterDeletedOps = users.every(u => u.db.gc === false)
-  var data = await Promise.all(users.map(async (u) => {
-    var data = {}
-    u.db.requestTransaction(function * () {
-      let ops = []
-      yield * this.os.iterate(this, null, null, function * (op) {
-        ops.push(Y.Struct[op.struct].encode(op))
-      })
-
-      data.os = {}
-      for (let i = 0; i < ops.length; i++) {
-        let op = ops[i]
-        op = Y.Struct[op.struct].encode(op)
-        delete op.origin
-        /*
-          If gc = false, it is necessary to filter deleted ops
-          as they might have been split up differently..
-         */
-        if (filterDeletedOps) {
-          let opIsDeleted = yield * this.isDeleted(op.id)
-          if (!opIsDeleted) {
-            data.os[JSON.stringify(op.id)] = op
-          }
-        } else {
-          data.os[JSON.stringify(op.id)] = op
-        }
-      }
-      data.ds = yield * getDeleteSet.apply(this)
-      data.ss = yield * getStateSet.apply(this)
-    })
-    await u.db.whenTransactionsFinished()
-    return data
-  }))
-  for (var i = 0; i < data.length - 1; i++) {
-    await t.asyncGroup(async () => {
-      t.compare(userArrayValues[i], userArrayValues[i + 1], 'array types')
-      t.compare(userMapOneValues[i], userMapOneValues[i + 1], 'map types (propery "one")')
-      t.compare(userMapTwoValues[i], userMapTwoValues[i + 1], 'map types (propery "two")')
-      t.compare(userXmlValues[i], userXmlValues[i + 1], 'xml types')
-      t.compare(data[i].os, data[i + 1].os, 'os')
-      t.compare(data[i].ds, data[i + 1].ds, 'ds')
-      t.compare(data[i].ss, data[i + 1].ss, 'ss')
-    }, `Compare user${i} with user${i + 1}`)
-  }
-  await Promise.all(users.map(async (u) => {
-    await u.close()
-  }))
-}
-
-export async function initArrays (t, opts) {
-  var result = {
-    users: []
-  }
-  var share = Object.assign({ flushHelper: 'Map', array: 'Array', map: 'Map', xml: 'XmlElement("div")' }, opts.share)
-  var chance = opts.chance || new Chance(t.getSeed() * 1000000000)
-  var conn = Object.assign({ room: 'debugging_' + t.name, generateUserId: false, testContext: t, chance }, connector)
-  for (let i = 0; i < opts.users; i++) {
-    let dbOpts
-    let connOpts
-    if (i === 0) {
-      // Only one instance can gc!
-      dbOpts = Object.assign({ gc: false }, database)
-      connOpts = Object.assign({ role: 'master' }, conn)
-    } else {
-      dbOpts = Object.assign({ gc: false }, database)
-      connOpts = Object.assign({ role: 'slave' }, conn)
-    }
-    let y = await Y({
-      connector: connOpts,
-      db: dbOpts,
-      share: share
-    })
-    result.users.push(y)
-    for (let name in share) {
-      result[name + i] = y.share[name]
-    }
-  }
-  result.array0.delete(0, result.array0.length)
-  if (result.users[0].connector.testRoom != null) {
-    // flush for sync if test-connector
-    await result.users[0].connector.testRoom.flushAll(result.users)
-  }
-  await Promise.all(result.users.map(u => {
-    return new Promise(function (resolve) {
-      u.connector.whenSynced(resolve)
-    })
-  }))
-  await flushAll(t, result.users)
-  return result
-}
-
-export async function flushAll (t, users) {
-  // users = users.filter(u => u.connector.isSynced)
-  if (users.length === 0) {
-    return
-  }
-  await wait(0)
-  if (users[0].connector.testRoom != null) {
-    // use flushAll method specified in Test Connector
-    await users[0].connector.testRoom.flushAll(users)
-  } else {
-    // flush for any connector
-    await Promise.all(users.map(u => { return u.db.whenTransactionsFinished() }))
-
-    var flushCounter = users[0].share.flushHelper.get('0') || 0
-    flushCounter++
-    await Promise.all(users.map(async (u, i) => {
-      // wait for all users to set the flush counter to the same value
-      await new Promise(resolve => {
-        function observer () {
-          var allUsersReceivedUpdate = true
-          for (var i = 0; i < users.length; i++) {
-            if (u.share.flushHelper.get(i + '') !== flushCounter) {
-              allUsersReceivedUpdate = false
-              break
-            }
-          }
-          if (allUsersReceivedUpdate) {
-            resolve()
-          }
-        }
-        u.share.flushHelper.observe(observer)
-        u.share.flushHelper.set(i + '', flushCounter)
-      })
-    }))
-  }
-}
-
-export async function flushSome (t, users) {
-  if (users[0].connector.testRoom == null) {
-    // if not test-connector, wait for some time for operations to arrive
-    await wait(100)
-  }
-}
-
-export function wait (t) {
-  return new Promise(function (resolve) {
-    setTimeout(resolve, t != null ? t : 100)
-  })
-}
-
-export async function applyRandomTests (t, mods, iterations) {
-  const chance = new Chance(t.getSeed() * 1000000000)
-  var initInformation = await initArrays(t, { users: 5, chance: chance })
-  let { users } = initInformation
-  for (var i = 0; i < iterations; i++) {
-    if (chance.bool({likelihood: 10})) {
-      // 10% chance to disconnect/reconnect a user
-      // we make sure that the first users always is connected
-      let user = chance.pickone(users.slice(1))
-      if (user.connector.isSynced) {
-        if (users.filter(u => u.connector.isSynced).length > 1) {
-          // make sure that at least one user remains in the room
-          await user.disconnect()
-          if (users[0].connector.testRoom == null) {
-            await wait(100)
-          }
-        }
-      } else {
-        await user.reconnect()
-        if (users[0].connector.testRoom == null) {
-          await wait(100)
-        }
-        await new Promise(function (resolve) {
-          user.connector.whenSynced(resolve)
-        })
-      }
-    } else if (chance.bool({likelihood: 5})) {
-      // 20%*!prev chance to flush all & garbagecollect
-      // TODO: We do not gc all users as this does not work yet
-      // await garbageCollectUsers(t, users)
-      await flushAll(t, users)
-      await users[0].db.emptyGarbageCollector()
-      await flushAll(t, users)
-    } else if (chance.bool({likelihood: 10})) {
-      // 20%*!prev chance to flush some operations
-      await flushSome(t, users)
-    }
-    let user = chance.pickone(users)
-    var test = chance.pickone(mods)
-    test(t, user, chance)
-  }
-  await compareUsers(t, users)
-  return initInformation
-}

tests-lib/test-connector.js

@@ -1,166 +0,0 @@
-/* global Y */
-import { wait } from './helper.js'
-import { formatYjsMessage } from '../src/MessageHandler.js'
-
-var rooms = {}
-
-export class TestRoom {
-  constructor (roomname) {
-    this.room = roomname
-    this.users = new Map()
-    this.nextUserId = 0
-  }
-  join (connector) {
-    if (connector.userId == null) {
-      connector.setUserId(this.nextUserId++)
-    }
-    this.users.forEach((user, uid) => {
-      if (user.role === 'master' || connector.role === 'master') {
-        this.users.get(uid).userJoined(connector.userId, connector.role)
-        connector.userJoined(uid, this.users.get(uid).role)
-      }
-    })
-    this.users.set(connector.userId, connector)
-  }
-  leave (connector) {
-    this.users.delete(connector.userId)
-    this.users.forEach(user => {
-      user.userLeft(connector.userId)
-    })
-  }
-  send (sender, receiver, m) {
-    var user = this.users.get(receiver)
-    if (user != null) {
-      user.receiveMessage(sender, m)
-    }
-  }
-  broadcast (sender, m) {
-    this.users.forEach((user, receiver) => {
-      this.send(sender, receiver, m)
-    })
-  }
-  async flushAll (users) {
-    let flushing = true
-    let allUserIds = Array.from(this.users.keys())
-    if (users == null) {
-      users = allUserIds.map(id => this.users.get(id).y)
-    }
-    while (flushing) {
-      await wait(10)
-      let res = await Promise.all(allUserIds.map(id => this.users.get(id)._flushAll(users)))
-      flushing = res.some(status => status === 'flushing')
-    }
-  }
-}
-
-function getTestRoom (roomname) {
-  if (rooms[roomname] == null) {
-    rooms[roomname] = new TestRoom(roomname)
-  }
-  return rooms[roomname]
-}
-
-export default function extendTestConnector (Y) {
-  class TestConnector extends Y.AbstractConnector {
-    constructor (y, options) {
-      if (options === undefined) {
-        throw new Error('Options must not be undefined!')
-      }
-      if (options.room == null) {
-        throw new Error('You must define a room name!')
-      }
-      options.forwardAppliedOperations = options.role === 'master'
-      super(y, options)
-      this.options = options
-      this.room = options.room
-      this.chance = options.chance
-      this.testRoom = getTestRoom(this.room)
-      this.testRoom.join(this)
-    }
-    disconnect () {
-      this.testRoom.leave(this)
-      return super.disconnect()
-    }
-    logBufferParsed () {
-      console.log(' === Logging buffer of user ' + this.userId + ' === ')
-      for (let [user, conn] of this.connections) {
-        console.log(` ${user}:`)
-        for (let i = 0; i < conn.buffer.length; i++) {
-          console.log(formatYjsMessage(conn.buffer[i]))
-        }
-      }
-    }
-    reconnect () {
-      this.testRoom.join(this)
-      return super.reconnect()
-    }
-    send (uid, message) {
-      super.send(uid, message)
-      this.testRoom.send(this.userId, uid, message)
-    }
-    broadcast (message) {
-      super.broadcast(message)
-      this.testRoom.broadcast(this.userId, message)
-    }
-    async whenSynced (f) {
-      var synced = false
-      var periodicFlushTillSync = () => {
-        if (synced) {
-          f()
-        } else {
-          this.testRoom.flushAll([this.y]).then(function () {
-            setTimeout(periodicFlushTillSync, 10)
-          })
-        }
-      }
-      periodicFlushTillSync()
-      return super.whenSynced(function () {
-        synced = true
-      })
-    }
-    receiveMessage (sender, m) {
-      if (this.userId !== sender && this.connections.has(sender)) {
-        var buffer = this.connections.get(sender).buffer
-        if (buffer == null) {
-          buffer = this.connections.get(sender).buffer = []
-        }
-        buffer.push(m)
-        if (this.chance.bool({likelihood: 30})) {
-          // flush 1/2 with 30% chance
-          var flushLength = Math.round(buffer.length / 2)
-          buffer.splice(0, flushLength).forEach(m => {
-            super.receiveMessage(sender, m)
-          })
-        }
-      }
-    }
-    async _flushAll (flushUsers) {
-      if (flushUsers.some(u => u.connector.userId === this.userId)) {
-        // this one needs to sync with every other user
-        flushUsers = Array.from(this.connections.keys()).map(uid => this.testRoom.users.get(uid).y)
-      }
-      var finished = []
-      for (let i = 0; i < flushUsers.length; i++) {
-        let userId = flushUsers[i].connector.userId
-        if (userId !== this.userId && this.connections.has(userId)) {
-          let buffer = this.connections.get(userId).buffer
-          if (buffer != null) {
-            var messages = buffer.splice(0)
-            for (let j = 0; j < messages.length; j++) {
-              let p = super.receiveMessage(userId, messages[j])
-              finished.push(p)
-            }
-          }
-        }
-      }
-      await Promise.all(finished)
-      await this.y.db.whenTransactionsFinished()
-      return finished.length > 0 ? 'flushing' : 'done'
-    }
-  }
-  Y.extend('test', TestConnector)
-}
-
-if (typeof Y !== 'undefined') {
-  extendTestConnector(Y)
-}