Changed tweets, added eca

devjan_static/lib/events.js

@@ -0,0 +1,38 @@
+/*
+Event stream handling.
+
+See https://developer.mozilla.org/en-US/docs/Web/API/EventSource for a more
+comprehensive explanation.
+*/
+
+events = {};
+
+(function($, exports) {
+    var e = new EventSource('/events');
+
+    exports.connect = function(name, elements) {
+        // wrap to allow selector, jQuery object and DOM nodes
+        var $elements = $(elements);
+
+        // add listener that triggers events in DOM
+        this.listen(name, function(message) {
+            $elements.trigger('server-event', [message]);
+        });
+    };
+
+    exports.listen = function(name, callback) {
+        // add event listener to event stream
+        e.addEventListener(name, function(m) {
+            try {
+                var message = JSON.parse(m.data);
+            } catch(err) {
+                console.exception("Received malformed message: ",err);
+                return;
+            }
+
+            callback(message);
+        });
+    };
+})(jQuery, events);
+
+