WIP

www/common/common-realtime.js

@@ -0,0 +1,42 @@
+define([
+    '/customize/application_config.js',
+    '/customize/messages.js',
+], function (AppConfig, Messages) {
+    var common = {};
+
+    common.infiniteSpinnerDetected = false;
+    var BAD_STATE_TIMEOUT = typeof(AppConfig.badStateTimeout) === 'number'?
+        AppConfig.badStateTimeout: 30000;
+
+    /*
+        TODO make this not blow up when disconnected or lagging...
+    */
+    common.whenRealtimeSyncs = function (realtime, cb) {
+        realtime.sync();
+
+        window.setTimeout(function () {
+            if (realtime.getAuthDoc() === realtime.getUserDoc()) {
+                return void cb();
+            }
+
+            var to = setTimeout(function () {
+                realtime.abort();
+                // don't launch more than one popup
+                if (common.infiniteSpinnerDetected) { return; }
+
+                // inform the user their session is in a bad state
+                common.confirm(Messages.realtime_unrecoverableError, function (yes) {
+                    if (!yes) { return; }
+                    window.location.reload();
+                });
+                common.infiniteSpinnerDetected = true;
+            }, BAD_STATE_TIMEOUT);
+            realtime.onSettle(function () {
+                clearTimeout(to);
+                cb();
+            });
+        }, 0);
+    };
+
+    return common;
+});