assign a new hash to url when doing ajax submit form

Gruntfile.js

@@ -28,7 +28,8 @@ module.exports = function(grunt) {
             'lib/base.js',
             'lib/util.js',
             'lib/view.js',
-            'lib/route.js'
+            'lib/route.js',
+            'vendor/sha1.js'
         ],
         dest: 'dist/<%= pkg.name %>'
       }

lib/route.js

@@ -49,6 +49,8 @@ APP.facadeURI_ = function(url) {
 };
 
 function route_() {
+    if (/^!(\d|\w)+/.test(window.location.hash)) return;
+
     var params;
     try {
         params = APP.routeParams_(window.location.hash);

lib/util.js

@@ -1,3 +1,5 @@
+/*global jsSHA */
+
 var _ = {};
 
 _.has = function(a, b) {
@@ -16,3 +18,11 @@ _.isEmpty = function(a) {
         return !a;
     }
 };
+
+_.getHash = function(a) {
+    if (typeof a === 'object') {
+        a = JSON.stringify(a);
+    }
+    var str = 'blob ' + a.length + '\0' + a;
+    return (new jsSHA(str, 'TEXT')).getHash('SHA-1', 'HEX');
+};

lib/view.js

@@ -38,17 +38,20 @@ function interceptFormSubmit_(event, form) {
     var container = APP.container_;
     event.stopImmediatePropagation();
     event.preventDefault();
+    var formSubmitParams = null;
     var xhr = jQuery(form).ajaxSubmit({
         url: form.action,
         beforeSubmit: function(formData, context, options) {
             APP.componentWillSubmitForm(formData, form, options);
+            formSubmitParams = jQuery.extend({}, formData);
         }
     }).data('jqxhr');
     xhr.done(function(resp) {
         container.empty();
         APP.componentWillUpdate_(container, resp);
         container.html(resp);
         APP.componentDidUpdate_(container, resp);
+        APP.goURI('!' + _.getHash(formSubmitParams));
     });
     return false;
 }