JavaScript Data Binding mit jQuery Mobile - Mobile Developer Conference 2012 - OPITZ CONSULTING - Stefan Scheidt

1. Stefan Scheidt OPITZ CONSULTING GmbH JavaScript Data Binding mit jQuery Mobile /mdc_conference | #mdc12 www.mobile-developer-conference.de

2. Wer bin ich? [email protected] (@stefanscheidt)

3. Mission Märkte Wir entwickeln gemeinsam mit allen  Branchenübergreifend Branchen Lösungen, die dazu führen, dass  Über 600 Kunden sich diese Organisationen besser entwickeln 29% als ihr Wettbewerb. 29% Handel / Logistik / Dienstleistungen Industrie / Versorger / Unsere Dienstleistung erfolgt Telekommunikation partnerschaftlich und ist auf eine langjährige 42% Zusammenarbeit angelegt. Öffentliche Auftraggeber / Banken und Versicherungen / Vereine und Verbände Leistungsangebot Eckdaten  Business IT Alignment  Gründung 1990  Business Information Management  400 Mitarbeiter  Business Process Management  8 Standorte  Anwendungsentwicklung  SOA und System-Integration  IT-Infrastruktur-Management © OPITZ CONSULTING GmbH 2012 Seite 3

4. Wer sind Sie?

5. In diesem Vortrag geht‘s um ... ... die Entwicklung testbarer und wartbarer mobiler JavaScript Web-Apps

8. Unser Beispiel

9. Architektur

10. "Multi Page Web App" Browser Server HTML-Page Controller Data Backend UI Values

11. "AJAX Web App" Browser Server Change AJAX- Controller Ba Data Engine Events

12. "Single Page Web App" Browser Server Controller Data Backend

13. Komponenten-Bibliotheken

14. jQuery Mobile http://jquerymobile.com/

15. Unser Beispiel

16. <div id="main" data-role="page"> <div data-role="header"> <h1>Todos</h1> <a href="">Save</a> <a href="#settings">Settings</a> </div> <div data-role="content"> <div data-role="fieldcontain"> <form data-ajax="false"> <input type="text"> </form> </div> <fieldset data-role="controlgroup"> <input type="checkbox" id="todo1"/> <label for="todo1">create a mobile todo app</label> </fieldset> </div> </div> jQuery Mobile Markup

21. DOM-Transformation durch jQuery-Mobile

22. <input type="checkbox" id="todo1"/> <label for="todo1">create a mobile todo app</label> <div class="ui-checkbox"> <input type="checkbox" name="todo.done" id="todo1"> <label class="ui-btn ui-btn-up-c ui-btn-icon-left ui-btn-corner-all ui-checkbox-off" for="todo1" data-theme="c"> <span class="ui-btn-inner ui-btn-corner-all"> <span class="ui-btn-text">create a mobile todo app</span> <span class="ui-icon ui-icon-checkbox-off ui-icon-shadow"></span> </span> </label> </div> jQuery Mobile Markup Transformation

23. <input type="checkbox" id="todo1"/> <label for="todo1">create a mobile todo app</label> <div class="ui-checkbox"> <input type="checkbox" name="todo.done" id="todo1"> <label class="ui-btn ui-btn-up-c ui-btn-icon-left ui-btn-corner-all ui-checkbox-off" for="todo1" data-theme="c"> <span class="ui-btn-inner ui-btn-corner-all"> <span class="ui-btn-text">create a mobile todo app</span> <span class="ui-icon ui-icon-checkbox-off ui-icon-shadow"></span> </span> </label> </div> jQuery Mobile Markup Transformation

24. Two Way Data Binding

25. Manuelles Binding

26. $('#addTodo').submit(function(event) { addTodo(); event.preventDefault(); }); function addTodo() { var inputText = $('#inputText').val(); var list = $('#todos'); var entryCount = list.find('input').length; list.append(entryTemplate(entryCount, inputText)); list.trigger('create'); $('#inputText').val(''); } function entryTemplate(index, name) { var id = 'todo' + index; return '<input type="checkbox" id="' + id + '"/>' + '<label for="' + id + '">' + name + '</label>'; }

34. Das Ziel ist aber: function TodoController() { this.todos = []; this.inputText = ''; } TodoController.prototype.addTodo = function() { this.todos.push({ name: this.inputText, done: false }); this.inputText = ''; }

35. Angular JS Declarative MVC with UI Templates Dependency Injection Two-Way Framework Data Binding http://angularjs.org/#/

36. Two-Way Databinding read read write Data- write DOM Controller binding watch watch

37. Scopes Scope Expressions $get(<expr>) 'inputText' 'todos.length' $set(<expr>, <value>) Object ... $watch(<expr>, <callback>)

38. <div id="main" data-role="page"> <div data-role="header"> <h1>Todos</h1> <a href="">Save</a> <a href="#settings">Settings</a> </div> <div data-role="content"> <div data-role="fieldcontain"> <form data-ajax="false"> <input type="text"> </form> </div> <fieldset data-role="controlgroup"> <input type="checkbox" id="todo1"/> <label for="todo1">create a mobile todo app</label> </fieldset> </div> </div> Das DOM

39. function TodoController() { this.todos = []; this.inputText = ''; } TodoController.prototype.addTodo = function() { this.todos.push({ name: this.inputText, done: false }); this.inputText = ''; } Der Controller

40. <div data-role="page" TodoController-Scope ng:controller="TodoController"> inputText: 'new todo' erzeugt <input type="text" todos: [...] name="inputText" bindet bindet <div ng:repeat="todo in todos"> erzeugt Repeater Scope Repeater Scope Repeater Scope todo: { todo: todo: { { <input type="checkbox" name="todo.done"/> done: false done: false done: false bindet name: 'makemoney' name: 'makemoney' name: 'makemoney' <label> {{todo.name}} } </label> bindet }}

41. Damit ist das Ziel fast erreicht, aber...

42. jQuery Mobile und AngularJS Das Problem: Die DOM-Manipulationen von jQuery Mobile und AngularJS müssen koordiniert werden!

43. jQuery Mobile und AngularJS Die Lösung: jquery-mobile-angular-adapter

44. jQuery Mobile Angular Adapter Koordination von jQuery Mobile und AngularJS Erweiterungen für mobile Web-Apps Open Source unter https://github.com/tigbro/ jquery-mobile-angular-adapter

45. Dependency Injection

46. Beispiel: Backend-Anbindung var readUrl = 'https://secure.openkeyval.org/'; TodoController.prototype.refreshTodos() { var self = this; read(readUrl, function(response) { self.todos = response; }); }

47. Beispiel: Backend-Anbindung var readUrl = 'https://secure.openkeyval.org/'; TodoController.prototype.refreshTodos() { var self = this; read(readUrl, function(response) { self.todos = response; }); }

48. Beispiel: Backend-Anbindung var readUrl = 'https://secure.openkeyval.org/'; function read(key, success) { var url = readUrl + key; waitdialog.show(); jsonp(url, function(data) { success(data); waitdialog.hide(); }); }

51. Beispiel: Backend-Anbindung waitDialog key value todoController todoStore ... ... key value key value todoStore waitDialog jsonp jsonp key value ... ... created created by with "new" Factories

52. Beispiel: Backend-Anbindung waitDialog key value todoController todoStore ... ... key value key value todoStore waitDialog jsonp jsonp key value ... ... created by Dependency Injection

53. Services und DI mit Angular angular.service('jsonp', jsonpFactory); angular.service('waitdialog', waitdialogFactory);

54. Services und DI mit Angular angular.service('jsonp', jsonpFactory); angular.service('waitdialog', waitdialogFactory); function todoStoreFactory() { function read(key, success) { ... } // ... return { read: read // ... } }

55. Services und DI mit Angular angular.service('jsonp', jsonpFactory); angular.service('waitdialog', waitdialogFactory); function todoStoreFactory(jsonp, waitdialog) { function read(key, success) { ... } // ... return { read: read, // ... } } todoStoreFactory.$inject = ['jsonp', 'waitdialog'];

56. Services und DI mit Angular angular.service('jsonp', jsonpFactory); angular.service('waitdialog', waitdialogFactory); function todoStoreFactory(jsonp, waitdialog) { function read(key, success) { ... } // ... return { read: read // ... } } todoStoreFactory.$inject = ['jsonp', 'waitdialog']; angular.service('todoStore', todoStoreFactory);

57. DI für Controller // ... angular.service('todoStore', ...);

58. DI für Controller // ... angular.service('todoStore', ...); function TodoController(todoStore) { ... } TodoController.$inject = ['todoStore'];

59. jQuery Mobile Angular Adapter Koordination von jQuery Mobile und AngularJS Erweiterungen für mobile Web-Apps Open Source unter https://github.com/tigbro/ jquery-mobile-angular-adapter

60. jQuery Mobile Angular Adapter Mobile Events

61. <div id="main" data-role="page" ng:controller="TodoController" ngm:pagebeforeshow="refreshTodos()"> ... </div> Unterstütze Events: click swipe pagebeforeshow swiperight pageshow swipeleft pagebeforehide tap pagehide taphold

62. jQuery Mobile Angular Adapter Navigation

63. <a href="#welcomePage">

64. <a href="" ngm:click="$navigate('welcomePage')">

65. <a href="" ngm:click="$navigate(login(), 'success:welcomePage', 'failure:loginPage')">

66. <a href="" ngm:click="$navigate(login(), 'success:slide:welcomePage', 'failure:loginPage')">

67. jQuery Mobile Angular Adapter Shared Controller

68. LoginPage <div id="loginPage" Scope ng:controller="LoginController"> login <a ngm:click="login()">

69. LoginPage <div id="loginPage" Scope ng:controller="LoginController"> login <a ngm:click="login()"> <div id="welcomePage" WelcomePage ng:controller="WelcomeController"> Scope logout <a ngm:click="logout()">

70. LoginPage <div id="loginPage" Scope ngm:shared-controller= Authentication- "auth:AuthenticationController"> auth Controller Scope <a ngm:click="login()"> login logout <div id="welcomePage" WelcomePage ngm:shared-controller= Scope "auth:AuthenticationController"> auth <a ngm:click="logout()">

71. LoginPage <div id="loginPage" Scope ngm:shared-controller= Authentication- "auth:AuthenticationController"> auth Controller Scope <a ngm:click="auth.login()"> login logout <div id="welcomePage" WelcomePage ngm:shared-controller= Scope "auth:AuthenticationController"> auth <a ngm:click="auth.logout()">

72. jQuery Mobile Angular Adapter Wait Dialog

73. waitDialog.show('loading'); waitDialog.hide(); waitDialog.show('click to abort', onClickCallback);

74. One more thing...

75. Sencha Touch Angular Adapter Koordination von Sencha Touch und Angular JS Erweiterungen für mobile Web-Apps semantisches HTML Markup! Open Source unter https://github.com/tigbro/ sencha-touch-angular-adapter

76. Plain Sencha Touch <!DOCTYPE html> <html> <head> <title>TodoMobile</title> <link rel="stylesheet" href="lib/sencha-touch.css"/> <script src="lib/sencha-touch-1.1.0.js"></script> <script src="todo_sencha.js"></script> </head> <body> </body> </html>

77. new Ext.Application({launch: function() { new Ext.Carousel({ fullscreen: true, items: [{xtype: 'panel', scroll: true, dockedItems: [{xtype: 'toolbar', dock: 'top', title: 'Todos', items: [{xtype: 'button', text: 'Save'}, {xtype: 'spacer'}, {xtype: 'button', text: 'Settings'}]}], items: [{xtype: 'textfield', placeHolder: 'enter your todo here', listeners: {action: addTodo}}, todoPanel]} // Settings panel omitted ]}); }});

78. <st:carousel ng:controller="TodoController"> <st:panel id="todos"> <st:toolbar dock="top" title="Todos"> <st:button text="Save" st:event="{tap:'saveTodos()'}"/> </st:toolbar> <st:textfield name="inputText" st:event="{action:'addTodo()'}"/> <st:checkboxfield ng:repeat="todo in todos" name="todo.done" label="{{todo.name}}"/> </st:panel> </st:carousel>

79. Fazit Auch bei der Entwicklung von JavaScript Clients sollten geeignete Entwurfsmuster angewendet werden!

80. Fazit Bibliotheken und Frameworks helfen bei der Umsetzung!

81. In the hive 11: nectar and pollen by Max xx, http://www.flickr.com/photos/max_westby/4567762490 Books By Rodrigo Galindez, http://www.flickr.com/photos/rodrigogalindez/4637637337/ IMG_1300-Edit by Susan E Adams, http://www.flickr.com/photos/susanad813/3912914836/ Doble Via by amslerPIX, http://www.flickr.com/photos/amslerpix/6242266697/ Stubborn Last Drop by RogueSun Media, http://www.flickr.com/photos/shuttercat7/627798443/

82. Vielen Dank für Ihr Interesse! @stefanscheidt

JavaScript Data Binding mit jQuery Mobile - Mobile Developer Conference 2012 - OPITZ CONSULTING - Stefan Scheidt

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