Handle infinite-spinner errors and properly inform the user

www/common/common-realtime.js

@@ -9,23 +9,33 @@ define([
         AppConfig.badStateTimeout: 30000;
 
     var connected = false;
+    var intr;
+    var infiniteSpinnerHandlers = [];
 
     /*
         TODO make this not blow up when disconnected or lagging...
     */
     common.whenRealtimeSyncs = function (Cryptpad, realtime, cb) {
-        realtime.sync();
-
         window.setTimeout(function () {
             if (realtime.getAuthDoc() === realtime.getUserDoc()) {
                 return void cb();
+            } else {
+                realtime.onSettle(cb);
             }
 
-            var to = setTimeout(function () {
-                if (!connected) { return; }
+            if (intr) { return; }
+            intr = window.setInterval(function () {
+                var l;
+                try {
+                    l = realtime.getLag();
+                } catch (e) {
+                    throw new Error("ChainPad.getLag() does not exist, please `bower update`");
+                }
+                if (l.lag < BAD_STATE_TIMEOUT || !connected) { return; }
                 realtime.abort();
                 // don't launch more than one popup
                 if (common.infiniteSpinnerDetected) { return; }
+                infiniteSpinnerHandlers.forEach(function (ish) { ish(); });
 
                 // inform the user their session is in a bad state
                 Cryptpad.confirm(Messages.realtime_unrecoverableError, function (yes) {
@@ -33,14 +43,12 @@ define([
                     window.location.reload();
                 });
                 common.infiniteSpinnerDetected = true;
-            }, BAD_STATE_TIMEOUT);
-            realtime.onSettle(function () {
-                clearTimeout(to);
-                cb();
-            });
+            }, 2000);
         }, 0);
     };
 
+    common.onInfiniteSpinner = function (f) { infiniteSpinnerHandlers.push(f); };
+
     common.setConnectionState = function (bool) {
         if (typeof(bool) !== 'boolean') { return; }
         connected = bool;

www/common/sframe-chainpad-netflux-inner.js

@@ -67,9 +67,7 @@ define([
                 logLevel: logLevel
             });
             chainpad.onMessage(function(message, cb) {
-                sframeChan.query('Q_RT_MESSAGE', message, function (ret) {
-                    if (ret === 'OK') { cb(); }
-                });
+                sframeChan.query('Q_RT_MESSAGE', message, cb);
             });
             chainpad.onPatch(function () {
                 onRemote({ realtime: chainpad });

www/common/sframe-chainpad-netflux-outer.js

@@ -155,13 +155,14 @@ define([], function () {
                         // want to keep the same chainpad (realtime) object
                         try {
                             wcObject.wc.bcast(message).then(function() {
-                                cb('OK');
+                                cb();
                             }, function(err) {
                                 // The message has not been sent, display the error.
                                 console.error(err);
                             });
                         } catch (e) {
-                            cb('ERROR');
+                            console.log(e);
+                            // Just skip calling back and it will fail on the inside.
                         }
                     }
                 };
@@ -214,6 +215,7 @@ define([], function () {
         };
 
         network.on('disconnect', function (reason) {
+            console.log('disconnect');
             if (isIntentionallyLeaving) { return; }
             if (reason === "network.disconnect() called") { return; }
             sframeChan.event('EV_RT_DISCONNECT');

www/common/sframe-common.js

@@ -10,9 +10,10 @@ define([
     '/common/metadata-manager.js',
 
     '/customize/application_config.js',
-    '/common/cryptpad-common.js'
+    '/common/cryptpad-common.js',
+    '/common/common-realtime.js'
 ], function ($, nThen, Messages, CpNfInner, SFrameChannel, Title, UI, History, MetadataMgr,
-    AppConfig, Cryptpad) {
+    AppConfig, Cryptpad, CommonRealtime) {
 
     // Chainpad Netflux Inner
     var funcs = {};
@@ -292,6 +293,10 @@ define([
                     if (titleUpdated) { titleUpdated(undefined, title); }
                 });
             });
+
+            ctx.sframeChan.on('EV_RT_CONNECT', function () { CommonRealtime.setConnectionState(true); });
+            ctx.sframeChan.on('EV_RT_DISCONNECT', function () { CommonRealtime.setConnectionState(false); });
+
             cb(funcs);
         });
     } };

www/pad2/main.js

@@ -33,6 +33,7 @@ define([
     '/bower_components/nthen/index.js',
     '/common/sframe-common.js',
     '/api/config',
+    '/common/common-realtime.js',
 
     '/bower_components/file-saver/FileSaver.min.js',
     '/bower_components/diff-dom/diffDOM.js',
@@ -41,8 +42,24 @@ define([
     'css!/bower_components/components-font-awesome/css/font-awesome.min.css',
     'less!/customize/src/less/cryptpad.less',
     'less!/customize/src/less/toolbar.less'
-], function ($, Crypto, Hyperjson,
-    Toolbar, Cursor, JsonOT, TypingTest, JSONSortify, TextPatcher, Cryptpad, Cryptget, Links, nThen, SFCommon, ApiConfig) {
+], function (
+    $,
+    Crypto,
+    Hyperjson,
+    Toolbar,
+    Cursor,
+    JsonOT,
+    TypingTest,
+    JSONSortify,
+    TextPatcher,
+    Cryptpad,
+    Cryptget,
+    Links,
+    nThen,
+    SFCommon,
+    ApiConfig,
+    CommonRealtime)
+{
     var saveAs = window.saveAs;
     var Messages = Cryptpad.Messages;
     var DiffDom = window.diffDOM;
@@ -322,6 +339,8 @@ define([
             }
         };
 
+        CommonRealtime.onInfiniteSpinner(function () { setEditable(false); });
+
         // don't let the user edit until the pad is ready
         setEditable(false);