AngularJS Essentials

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Chapter 2 The next properties that we are going to study are considered more complex and reserved for advanced components. They are required every time we need to deal with the DOM or interact with other directives. These properties are link, require, controller, and compile. link Another important feature while creating directives is the ability to access the DOM in order to interact with its elements. To achieve this mission, we need to implement a function called link in our directive. The link function is invoked after the framework is compiled, and it is recommended that you add behavior to the directive. It takes five arguments as follows: • scope: This is the scope object of the directive • element: This is the element instance of directive • attrs: This is the list of attributes declared within the directive's element • ctrl: This is the controller of the require directive, and it will be available only if it is used with the require property • transcludeFn: This is the transclude function The following code shows the accordion directive using the link function: index.html White - 10/10/2002 10:00 Black - 10/10/2002 10:36 [ 43 ] www.it-ebooks.info
Creating Reusable Components with Directives Blue - 10/10/2002 11:10 directives.html parking.directive("accordionItem", function () { return { templateUrl: "accordionItem.html", restrict: "E", scope: { title: "@" }, transclude: true, link: function (scope, element, attrs, ctrl, transcludeFn) { element.bind("click", function () { scope.$apply(function () { scope.active = !scope.active; }); }); } }; }); accordionItem.html {{title}} require The require property is used to inject another directive controller as the fourth parameter of the link function. It means that using this property, we are able to communicate with the other directives. Some of the parameters are shown in the following table: [ 44 ] www.it-ebooks.info
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AngularJS Essentials Copyright © 2
Page 5 and 6: About the Author Rodrigo Branas is
Page 7 and 8: About the Reviewers Andrei M. Eichl
Page 9 and 10: www.it-ebooks.info
Page 11 and 12: Table of Contents The ngIf directiv
Page 13 and 14: Table of Contents Chapter 7: Unit T
Page 15 and 16: Preface Only 2 months later, I laun
Page 17 and 18: Preface A block of code is set as f
Page 19 and 20: Preface Piracy Piracy of copyright
Page 21 and 22: Getting Started with AngularJS This
Page 23 and 24: Getting Started with AngularJS The
Page 25 and 26: Getting Started with AngularJS
Page 27 and 28: Getting Started with AngularJS app.
Page 31 and 32: Creating Reusable Components with D
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Page 67 and 68: Data Handling The following code is
Page 69 and 70: Data Handling Now, the output will
Page 71 and 72: Data Handling The expected result i
Page 73 and 74: Data Handling Color Entrance
Page 75 and 76: Data Handling Now, let's introduce
Page 77 and 78: Data Handling To finish, we can add
Page 79 and 80: Data Handling The plate must start
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Dependency Injection and Services T
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Dependency Injection and Services L
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Dependency Injection and Services r
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Dependency Injection and Services T
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Scope What happens when we change t
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Scope if (newValue == oldValue) ret
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Scope ng-model="username" placehold
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Scope Consider the following code s
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Scope Now, we need to start tickGen
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Modules The UI module The UI module
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Modules }, template: "" + "{{title}
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Modules A major part
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Unit Testing The topics that we'll
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Unit Testing car.entrance = new Dat
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Unit Testing parkingService = _park
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Unit Testing Filters Next, we are g
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Unit Testing Creating the element w
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Unit Testing '' + '' + 'Please info
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Unit Testing $httpBackend.flush();
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Unit Testing var _saveCar = functio
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Unit Testing At the moment, we have
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Unit Testing R
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Unit Testing 'src/parkingCtrl.js',
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Automating the Workflow Installatio
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Automating the Workflow grunt.initC
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Automating the Workflow } }); dist:
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Automating the Workflow } }, lib: {
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Automating the Workflow Cache The r
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directives 129 filters 128 service
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installation, Grunt 146 installatio
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two-way data binding $apply functio
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Dependency Injection with AngularJS
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AngularJS Essentials

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