fix(uiView): Fixed infinite loop when is called .go() from a controller. Closes #1194

Author: christopherthielen

src/viewDirective.js

@@ -203,10 +203,11 @@ function $ViewDirective(   $state,   $injector,   $uiViewScroll) {
 
         function updateView(firstTime) {
           var newScope        = scope.$new(),
-              name            = currentEl && currentEl.data('$uiViewName'),
+              name            = getUiViewName(attrs, $element.inheritedData('$uiView')),
               previousLocals  = name && $state.$current && $state.$current.locals[name];
 
           if (!firstTime && previousLocals === latestLocals) return; // nothing to do
+          latestLocals = $state.$current.locals[name];
 
           var clone = $transclude(newScope, function(clone) {
             renderer.enter(clone, $element, function onUiViewEnter() {
@@ -217,8 +218,6 @@ function $ViewDirective(   $state,   $injector,   $uiViewScroll) {
             cleanupLastView();
           });
 
-          latestLocals = $state.$current.locals[clone.data('$uiViewName')];
-
           currentEl = clone;
           currentScope = newScope;
           /**
@@ -249,16 +248,8 @@ function $ViewDirectiveFill ($compile, $controller, $state) {
     compile: function (tElement) {
       var initial = tElement.html();
       return function (scope, $element, attrs) {
-        var name      = attrs.uiView || attrs.name || '',
-            inherited = $element.inheritedData('$uiView');
-
-        if (name.indexOf('@') < 0) {
-          name = name + '@' + (inherited ? inherited.state.name : '');
-        }
-
-        $element.data('$uiViewName', name);
-
         var current = $state.$current,
+            name = getUiViewName(attrs, $element.inheritedData('$uiView')),
             locals  = current && current.locals[name];
 
         if (! locals) {
@@ -286,5 +277,14 @@ function $ViewDirectiveFill ($compile, $controller, $state) {
   };
 }
 
+/**
+ * Shared ui-view code for both directives:
+ * Given attributes and inherited $uiView data, return the view's name
+ */
+function getUiViewName(attrs, inherited) {
+  var name = attrs.uiView || attrs.name || '';
+  return name.indexOf('@') >= 0 ?  name :  (name + '@' + (inherited ? inherited.state.name : ''));
+}
+
 angular.module('ui.router.state').directive('uiView', $ViewDirective);
 angular.module('ui.router.state').directive('uiView', $ViewDirectiveFill);

test/stateDirectivesSpec.js

@@ -447,3 +447,50 @@ describe('uiSrefActive', function() {
     expect(angular.element(template[0].querySelector('a')).attr('class')).toBe('ng-scope');
   }));
 });
+
+describe('uiView controllers or onEnter handlers', function() {
+  var el, template, scope, document, count;
+
+  beforeEach(module('ui.router'));
+
+  beforeEach(module(function($stateProvider) {
+    count = 0;
+    $stateProvider
+      .state('aside',         { url: '/aside', template: '<div class="aside"></div>' })
+      .state('A',           { url: '/A', template: '<div class="A" ui-view="fwd"></div>' })
+      .state('A.fwd', {
+        url: '/fwd', views: { 'fwd@A': {
+          template: '<div class="fwd" ui-view>',
+          controller: function($state) { if (count++ < 20 && $state.current.name == 'A.fwd') $state.go(".nest"); }
+        }}
+      })
+      .state('A.fwd.nest',  { url: '/nest', template: '<div class="nest"></div>' });
+  }));
+
+  beforeEach(inject(function($document) {
+    document = $document[0];
+  }));
+
+  it('should not go into an infinite loop when controller uses $state.go', inject(function($rootScope, $q, $compile, $state) {
+    el = angular.element('<div><ui-view></ui-view></div>');
+    template = $compile(el)($rootScope);
+    $rootScope.$digest();
+
+    $state.transitionTo('aside');
+    $q.flush();
+    expect(template[0].querySelector('.aside')).toBeDefined();
+    expect(template[0].querySelector('.fwd')).toBeNull();
+
+    $state.transitionTo('A');
+    $q.flush();
+    expect(template[0].querySelector('.A')).not.toBeNull();
+    expect(template[0].querySelector('.fwd')).toBeNull();
+
+    $state.transitionTo('A.fwd');
+    $q.flush();
+    expect(template[0].querySelector('.A')).not.toBeNull();
+    expect(template[0].querySelector('.fwd')).not.toBeNull();
+    expect(template[0].querySelector('.nest')).not.toBeNull();
+    expect(count).toBe(1);
+  }));
+});