added option *generateUserId* in abstract connector

README.md

@@ -151,6 +151,7 @@ Report _any_ issues to the [Github issue page](https://github.com/y-js/yjs/issue
   * All our connectors implement a `room` property. Clients that specify the same room share the same data.
   * 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.
 * options.sourceDir (browser only)
   * Path where all y-* modules are stored
@@ -273,4 +274,3 @@ I created this framework during my bachelor thesis at the chair of computer scie
 Yjs is licensed under the [MIT License](./LICENSE).
 
 <yjs@dbis.rwth-aachen.de>
-

src/Connector.js

@@ -59,6 +59,9 @@ module.exports = function (Y/* :any */) {
       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 === true) {
+        this.setUserId(Y.utils.generateGuid())
+      }
     }
     resetAuth (auth) {
       if (this.authInfo !== auth) {

src/Utils.js

@@ -752,4 +752,9 @@ module.exports = function (Y /* : any*/) {
     return SmallLookupBuffer
   }
   Y.utils.createSmallLookupBuffer = createSmallLookupBuffer
+
+  // Generates a unique id, for use as a user id.
+  // Thx to @jed for this script https://gist.github.com/jed/982883
+  function generateGuid(a){return a?(a^Math.random()*16>>a/4).toString(16):([1e7]+-1e3+-4e3+-8e3+-1e11).replace(/[018]/g,generateGuid)} // eslint-disable-line
+  Y.utils.generateGuid = generateGuid
 }