Fixes #1456. Enhances Backbone.Events to support jQuery-style event maps, in 'on' and 'off'.

backbone.js

@@ -81,6 +81,13 @@
     // Bind one or more space separated events, `events`, to a `callback`
     // function. Passing `"all"` will bind the callback to all events fired.
     on: function(events, callback, context) {
+      if (_.isObject(events)) {
+        for (key in events) {
+          this.on(key, events[key], callback);
+        }
+        return this;
+      }
+
       var calls, event, list;
       if (!callback) return this;
 
@@ -99,6 +106,13 @@
     // with that function. If `callback` is null, removes all callbacks for the
     // event. If `events` is null, removes all bound callbacks for all events.
     off: function(events, callback, context) {
+      if (_.isObject(events)) {
+        for (key in events) {
+          this.off(key, events[key], callback);
+        }
+        return this;
+      }
+
       var event, calls, list, i;
 
       // No events, or removing *all* events.

test/events.js

@@ -17,7 +17,7 @@ $(document).ready(function() {
 
   test("binding and triggering multiple events", 4, function() {
     var obj = { counter: 0 };
-    _.extend(obj,Backbone.Events);
+    _.extend(obj, Backbone.Events);
 
     obj.on('a b c', function() { obj.counter += 1; });
 
@@ -35,6 +35,38 @@ $(document).ready(function() {
     equal(obj.counter, 5);
   });
 
+  test("binding and triggering with event maps", function() {
+    var obj = { counter: 0 };
+    _.extend(obj, Backbone.Events);
+
+    var increment = function() {
+      this.counter += 1;
+    };
+
+    obj.on({
+      a: increment,
+      b: increment,
+      c: increment
+    }, obj);
+
+    obj.trigger('a');
+    equal(obj.counter, 1);
+
+    obj.trigger('a b');
+    equal(obj.counter, 3);
+
+    obj.trigger('c');
+    equal(obj.counter, 4);
+
+    obj.off({
+      a: increment,
+      c: increment
+    }, obj);
+    obj.trigger('a b c');
+    equal(obj.counter, 5);
+  });
+
+
   test("trigger all for each event", 3, function() {
     var a, b, obj = { counter: 0 };
     _.extend(obj, Backbone.Events);