Created
December 26, 2013 17:12
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A more complex Backbone.Tree example to show: redefinition of template methods using a Mixin, and use of composite views with the action property
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| <DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset=utf-8 /> | |
| <title>Tree examples</title> | |
| <meta name="viewport" content="width=device-width"> | |
| </head> | |
| <body> | |
| <div class="main-wrapper"></div> | |
| <script id="joke-tpl" type="text/x-handlebars-template"> | |
| <p>{{value.joke}}</p> | |
| </script> | |
| <script id="layout-tpl" type="text/x-handlebars-template"> | |
| <section> | |
| <div class="jokes"></div> | |
| <button>Refresh!</button> | |
| </section> | |
| </script> | |
| <script id="spinner-tpl" type="text/x-handlebars-template"> | |
| <p>Loading...</p> | |
| </script> | |
| <script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script> | |
| <script src="http://documentcloud.github.io/underscore/underscore-min.js"></script> | |
| <script src="http://documentcloud.github.io/backbone/backbone-min.js"> </script> | |
| <script src="//cdnjs.cloudflare.com/ajax/libs/handlebars.js/1.1.2/handlebars.min.js"></script> | |
| <script src="dist/tree.js"></script> | |
| <script> | |
| //A model to fetch jokes from a web service | |
| var JokeModel = Backbone.Model.extend({ | |
| url: 'http://api.icndb.com/jokes/random' | |
| }); | |
| //Override BaseView fetchTemplate, and compileTemplate | |
| //using a mixin in order to maintain the logic localized | |
| var HandlebarsMixin = { | |
| compileTemplate: function(template) { | |
| return Handlebars.compile(template); | |
| }, | |
| fetchTemplate: function(templateId) { | |
| return $(templateId).html(); | |
| } | |
| }; | |
| //Override BaseView compileTemplate, and fetchTemplate | |
| //this change will affect all objects that extends from | |
| //BaseView's prototype including ContainerView | |
| _.extend(Tree.BaseView.prototype, HandlebarsMixin); | |
| //Jokes view instance | |
| var jokeView = new Tree.BaseView({ | |
| name: 'JokeView', | |
| loadingTemplate: '#spinner-tpl', | |
| template: '#joke-tpl', | |
| action: 'load', | |
| model: new JokeModel() | |
| }); | |
| //The container view | |
| var MainView = Tree.ContainerView.extend({ | |
| name: 'MainView', | |
| template: '#layout-tpl', | |
| events: { | |
| 'click button': 'onButtonClick' | |
| }, | |
| onButtonClick: function(e) { | |
| jokeView.load(); | |
| } | |
| }); | |
| var mainView = new MainView({ | |
| el: '.main-wrapper' | |
| }); | |
| //Add the jokes view into its own region | |
| //and then render | |
| mainView.addView('.jokes', jokeView); | |
| mainView.render(); | |
| </script> | |
| </body> | |
| </html> |
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