Changed configuration to be done via the abstract setting. Added support for using function to specify child state.

Author: nonplus

README.md

@@ -24,13 +24,15 @@ var app = angular.module('myApp', ['ng', 'ui.router.default']);
 Defining Default Child State
 ----------------------------
 
-In you state definition for an abstract state, add a `default` string property with the (relative or absolute) name of a child state.  When a state transtion targets this abstract state, it will be redirected to the default child state instead.
+In your state definition for an abstract state, set the `abstract` property to the name of a child state (relative or absolute).
+The child state name can be provided statically as a string dynamically as a function callback.
+
+When a state transtion targets this abstract state, it will be redirected to the default child state instead.
 
 ```javascript
 $stateProvider
     .state('parent', {
-      abstract: true,
-      default: '.index',
+      abstract: '.index',
       template: '<ui-view/>'
     })
     .state('parent.index', {
@@ -39,6 +41,18 @@ $stateProvider
     .state('parent.page2', {
       ...
     })
+    .state('another', {
+      abstract: ['$rootScope', function($rootScope) {
+        return $rootScope.edit ? '.edit' : '.display';
+      }]
+    })
+    .state('another.display', {
+      ...
+    })
+    .state('another.edit', {
+      ...
+    })
+    )
 ```
 
 Using Default Child State

angular-ui-router-default.js

@@ -3,17 +3,21 @@
 	var max_redirects = 10;
 	angular.module('ui.router.default', ['ui.router'])
 		.config(['$provide', function($provide) {
-			$provide.decorator('$state', ['$delegate', function($delegate) {
+			$provide.decorator('$state', ['$delegate', '$injector', function($delegate, $injector) {
 				var transitionTo = $delegate.transitionTo;
 				$delegate.transitionTo = function(to, toParams, options) {
 					var numRedirects = 0;
 					while(numRedirects++ < max_redirects) {
 						var target = this.get(to, this.$current);
-						if(target.abstract && target.default) {
-							if(target.default[0] == '.') {
-								to += target.default;
+						if(target.abstract && target.abstract !== true) {
+							var childState = target.abstract;
+							if(!angular.isString(childState)) {
+								childState = $injector.invoke(childState);
+							}
+							if(childState[0] == '.') {
+								to += childState;
 							} else {
-								to = target.default;
+								to = childState;
 							}
 						} else {
 							break;
@@ -27,4 +31,4 @@
 				return $delegate;
 			}])
 		}]);
-})(window.angular);
+})(window.angular);