feat: add ng-controller directive

Author: vojtajina

lib/angular.dart

@@ -13,6 +13,7 @@ part 'block_type.dart';
 part 'compiler.dart';
 part 'directive.dart';
 part 'directives/ng_bind.dart';
+part 'directives/ng_controller.dart';
 part 'directives/ng_mustache.dart';
 part 'directives/ng_repeat.dart';
 part 'dom_utilities.dart';
@@ -123,4 +124,5 @@ angularModule(AngularModule module) {
 
   module.directive(NgBindAttrDirective);
   module.directive(NgRepeatAttrDirective);
+  module.directive(NgControllerAttrDirective);
 }

lib/directives/ng_controller.dart

@@ -0,0 +1,35 @@
+part of angular;
+
+class NgControllerAttrDirective {
+  static String $transclude = 'element';
+  static RegExp CTRL_REGEXP = new RegExp(r'^(\S+)(\s+as\s+(\w+))?$');
+
+  Symbol ctrlSymbol;
+  String alias;
+  Injector injector;
+  BlockList blockList;
+
+  NgControllerAttrDirective(DirectiveValue value, Injector this.injector, BlockList this.blockList) {
+    var match = CTRL_REGEXP.firstMatch(value.value);
+
+    ctrlSymbol = new Symbol(match.group(1) + 'Controller');
+    alias = match.group(3);
+  }
+
+  attach(Scope scope) {
+    var childScope = scope.$new();
+    var module = new Module();
+    module.value(Scope, childScope);
+
+    // attach the child scope
+    blockList.newBlock()..attach(childScope)..insertAfter(blockList);
+
+    // instantiate the controller
+    var controller = injector.createChild([module], [ctrlSymbol]).getBySymbol(ctrlSymbol);
+
+    // publish the controller into the scope
+    if (alias != null) {
+      childScope[alias] = controller;
+    }
+  }
+}

test/directives/ng_controller_spec.dart

@@ -0,0 +1,51 @@
+import '../_specs.dart';
+
+
+class MainController {
+  Scope _scope;
+  String name = 'name on controller';
+
+  MainController(Scope this._scope) {
+    _scope['name'] = 'Vojta';
+  }
+}
+
+
+main() {
+  beforeEach(module(angularModule));
+
+  describe('NgController', () {
+    var compile, element, rootScope;
+
+    beforeEach(inject((Scope scope, Compiler compiler) {
+      compile = (html, [applyFn]) {
+        element = $(html);
+        rootScope = scope;
+        compiler(element)(element).attach(scope);
+        scope.$apply(applyFn);
+      };
+    }));
+
+
+    it('should instantiate controller', () {
+      compile('<div><div ng-controller="Main" class="controller">Hi {{name}}</div></div>');
+      expect(element.find('.controller').text()).toEqual('Hi Vojta');
+    });
+
+
+    it('should create a new scope', () {
+      compile('<div><div ng-controller="Main" class="controller">Hi {{name}}</div><div class="siblink">{{name}}</div></div>', () {
+        rootScope['name'] = 'parent';
+      });
+
+      expect(element.find('.controller').text()).toEqual('Hi Vojta');
+      expect(element.find('.siblink').text()).toEqual('parent');
+    });
+
+
+    it('should export controller', () {
+      compile('<div><div ng-controller="Main as main" class="controller">Hi {{main.name}}</div></div>');
+      expect(element.find('.controller').text()).toEqual('Hi name on controller');
+    });
+  });
+}