AngularJS Framework

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AngularJS - CloudVis Technology
AngularJS Framework
Tăng Phú
phutang@cloudvis.vn
Technical Leader @ CloudVis Technology

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Agenda
Introduction to AngularJS
Anatomy of an AngularJS application
Communicating with Servers
Custom Directives (advanced)

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Angular Team @ Google

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Experiences from building large web applications
like Gmail, Maps, Canlendar …
Open Source Javascript Framework
Use
MVC architecture
Data binding
Client side templates
Dependency injection

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hello-world.html
hello_controller.js

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Result Hello, World
A few interesting things
Bind with no classes, no IDs in HTML
No register events
hello_controller.js is plain JavaScript class
Auto inject $scope
Auto init HelloController

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Data Binding

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Result
Type: Hi

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Structure – Basic workflow

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● Line 2: define a part of DOM which is managed by Angular
● Line 5, 6: import library and your code
● Line 9: define scope (what's scope?) and bind with
HelloController, ng-controller attribute
● Line 10: define data with ng-model attribute
● Line 11: display text with {{ }}
● Line 12: behavior with ng-click attribute

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Basic startup flow
User requests a first page
Load a index.html page with template
Wait for the page fullly loaded, and looks ng-app
Scan binding and directives (what's directive?)
Connect to server to load additional data (call ajax to get
data)

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Basic startup flow
Images from http://docs.angularjs.org/guide/concepts

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What's Directive?
Kinds of Directive
E - Element name: <my-directive></my-directive>
A - Attribute: <div my-directive="exp"> </div>
C - Class: <div class="my-directive: exp;"></div>
M - Comment: 
Built-in Directive
ng-app (A)
ng-controller (A, C)
ng-model (A, C)
ng-change (E, A)
ng-click (A, C)
ng-repeat (A, C)
….
Ref: http://docs.angularjs.org/api/

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Directive Example
<p ng-bind="greeting"></p>
<form ng-controller="SomeController">
<input type="checkbox" ng-model="youCheckedIt">
</form>
<form ng-submit="requestFunding()"
ng-controller="StartUpController">
Starting: <input ng-change="computeNeeded()"
ng-model="startingEstimate">
Recommendation: {{needed}}
<button>Fund my startup!</button>
<button ng-click="reset()">Reset</button>
</form>

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What's Scope?
Scope as Data-Model
The glue between application controller and the view
Both controllers and directives have reference to the scope,
but not to each other.

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What's Controller?
A controller is a JavaScript function that is used to augment
instances of angular Scope
Use controllers to
Set up the initial state of a scope object.
Add behavior to the scope object.

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What's View?
To generate the View (render a DOM), AngularJS gathers
information from Template, applies Controller functions, link
Model properties

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Integration

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Data Binding
In the Angular implementation of MVC, the view has
knowledge of both the model and the controller.
The view knows about the model where two-way data-binding
occurs
Images from http://docs.angularjs.org/guide/dev_guide.templates.databinding
Classical Template Systems Angular Templates

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AngularJS support
$http
General usage
Shortcut methods
$http.get() $http.head() $http.post() $http.put()
$http.delete() $http.jsonp()

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$resource (Dependencies on $http)

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var data = Data.get({id:123}, function() {
data.isDefault = true;
data.$save();
});
{ 'get': {method:'GET'},
'save': {method:'POST'},
'query': {method:'GET', isArray:true},
'remove': {method:'DELETE'},
'delete': {method:'DELETE'} };
$resource (Dependencies on $http)

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Custom Directives (advanced)
E - Element name: <my-directive></my-directive>
A - Attribute: <div my-directive="exp"> </div>
C - Class: <div class="my-directive: exp;"></div>
M - Comment:

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Writing directives

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Wrapper DataTables
DataTables
(plug-in for jQuery)

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Wrapper DataTables
DataTables (plug-in for jQuery)
Import DataTables jQuery
<script
type="text/javascript"
src="jquery.dataTables.js">
</script>
In Template
<cv-table
ajax-url="/data/users"
page-size="50">
</cv-table>

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References
http://angularjs.org/
Ebook: AngularJS, Oreilly, Apr 2013

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Thank you

AngularJS Framework

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