fix(stateService): Process reload: in the StateService.target()

closes #2537

Author: christopherthielen

src/state/stateService.ts

@@ -227,6 +227,14 @@ export class StateService {
 
   /** Factory method for creating a TargetState */
   target(identifier: StateOrName, params: ParamsOrArray, options: TransitionOptions = {}): TargetState {
+    // If we're reloading, find the state object to reload from
+    if (isObject(options.reload) && !(<any>options.reload).name)
+      throw new Error('Invalid reload state object');
+    options.reloadState = options.reload === true ? this.stateRegistry.root() : this.stateRegistry.matcher.find(<any> options.reload, options.relative);
+
+    if (options.reload && !options.reloadState)
+      throw new Error(`No such reload state '${(isString(options.reload) ? options.reload : (<any>options.reload).name)}'`);
+
     let stateDefinition = this.stateRegistry.matcher.find(identifier, options.relative);
     return new TargetState(identifier, stateDefinition, params, options);
   };
@@ -274,14 +282,6 @@ export class StateService {
     options = defaults(options, defaultTransOpts);
     options = extend(options, { current: transQueue.peekTail.bind(transQueue)});
 
-    // If we're reloading, find the state object to reload from
-    if (isObject(options.reload) && !(<any>options.reload).name)
-      throw new Error('Invalid reload state object');
-    options.reloadState = options.reload === true ? this.$current.path[0] : this.stateRegistry.matcher.find(<any> options.reload, options.relative);
-
-    if (options.reload && !options.reloadState)
-      throw new Error(`No such reload state '${(isString(options.reload) ? options.reload : (<any>options.reload).name)}'`);
-
     let ref: TargetState = this.target(to, toParams, options);
     let latestTreeChanges: TreeChanges = treeChangesQueue.peekTail();
     const rootPath = () => PathFactory.bindTransNodesToPath([new Node(this.stateRegistry.root())]);

test/stateSpec.js

@@ -2096,13 +2096,20 @@ describe('otherwise and state redirects', function() {
 
 
 describe('hook redirects from .otherwise()', function() {
+  var log;
   beforeEach(module(function ($stateProvider, $urlRouterProvider) {
+    log = "";
     $urlRouterProvider.otherwise('/home');
     $stateProvider
-        .state('home', { url: '/home', template: 'home' })
+        .state('home', { url: '/home', template: 'home', controller: function() { log += "homeCtrl;"; } })
         .state('loginPage', { url: '/login', template: 'login' });
   }));
 
+  beforeEach(inject(function($compile, $rootScope) {
+    var $scope = $rootScope.$new();
+    $compile('<div><ui-view></ui-view></div>')($scope);
+  }));
+
   // Test for #2455
   it("should go to the redirect-to target state and url", inject(function($transitions, $q, $state, $location) {
     $transitions.onBefore({ to: 'home' }, function() {
@@ -2112,4 +2119,27 @@ describe('hook redirects from .otherwise()', function() {
     expect($state.current.name).toBe("loginPage");
     expect($location.path()).toBe('/login');
   }));
+
+  // Test for #2537
+  it("should be able to change option.reload", inject(function($transitions, $q, $state, $trace) {
+    var count = 0;
+    $q.flush();
+    expect($state.current.name).toBe("home");
+    expect(log).toBe("homeCtrl;");
+
+    $state.go('.'); $q.flush();
+    expect(log).toBe("homeCtrl;");
+
+    $transitions.onBefore({ to: 'home' }, function($state, $transition$) {
+      var options = $transition$.options();
+      if (!options.reload && count++ < 2) {
+        return $state.target($transition$.to(), $transition$.params("to"), extend({}, options, {reload: true}));
+      }
+    });
+
+    $state.go('.'); $q.flush();
+
+    expect($state.current.name).toBe("home");
+    expect(log).toBe("homeCtrl;homeCtrl;");
+  }));
 });