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May 16, 2012 15:45
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Using Twitter Bootstrap NavBars with Backbone.js
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| //This is the Backbone controller that manages the content of the app | |
| var Content = Backbone.View.extend({ | |
| initialize:function(options){ | |
| Backbone.history.on('route',function(source, path){ | |
| this.render(path); | |
| }, this); | |
| }, | |
| //This object defines the content for each of the routes in the application | |
| content:{ | |
| "":_.template(document.getElementById("root").innerHTML), | |
| "adventure":_.template(document.getElementById("adventure").innerHTML), | |
| "contact":_.template(document.getElementById("contact").innerHTML) | |
| }, | |
| render:function(route){ | |
| //Simply sets the content as appropriate | |
| this.$el.html(this.content[route]); | |
| } | |
| }); | |
| //This is the Backbone controller that manages the Nav Bar | |
| var NavBar = Backbone.View.extend({ | |
| initialize:function(options){ | |
| Backbone.history.on('route',function(source, path){ | |
| this.render(path); | |
| }, this); | |
| }, | |
| //This is a collection of possible routes and their accompanying | |
| //user-friendly titles | |
| titles: { | |
| "":"Home", | |
| "adventure":"Adventure", | |
| "contact":"Contact" | |
| }, | |
| events:{ | |
| 'click a':function(source) { | |
| var hrefRslt = source.target.getAttribute('href'); | |
| Backbone.history.navigate(hrefRslt, {trigger:true}); | |
| //Cancel the regular event handling so that we won't actual change URLs | |
| //We are letting Backbone handle routing | |
| return false; | |
| } | |
| }, | |
| //Each time the routes change, we refresh the navigation | |
| //items. | |
| render:function(route){ | |
| this.$el.empty(); | |
| var template = _.template("<li class='<%=active%>'><a href='<%=url%>'><%=visible%></a></li>"); | |
| for (var key in this.titles) | |
| { | |
| this.$el.append(template({url:key,visible:this.titles[key],active:route === key ? 'active' : ''})); | |
| } | |
| } | |
| }); | |
| //Every time a Router is instantiated, the route is added | |
| //to a global Backbone.history object. Thus, this is just a | |
| //nice way of defining possible application states | |
| new (Backbone.Router.extend({ | |
| routes: { | |
| "": "", | |
| "adventure": "adventure", | |
| "contact":"contact" | |
| } | |
| })); | |
| //Attach Backbone Views to existing HTML elements | |
| new NavBar({el:document.getElementById('nav-item-container')}); | |
| new Content({el:document.getElementById('container')}); | |
| //Start the app by setting kicking off the history behaviour. | |
| //We will get a routing event with the initial URL fragment | |
| Backbone.history.start(); |
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <title>Testing</title> | |
| <link href="bootstrap.min.css" rel="stylesheet"> | |
| </head> | |
| <body style="padding-top:40px;"> | |
| <!-- CONTENT TEMPLATES --> | |
| <script type="text/html" id="root"> | |
| <div>MAIN</div> | |
| </script> | |
| <script type="text/html" id="adventure"> | |
| <div>ADVENTURE</div> | |
| </script> | |
| <script type="text/html" id="contact"> | |
| <div>CONTACTS</div> | |
| </script> | |
| <div class="navbar navbar-fixed-top"> | |
| <div class="navbar-inner"> | |
| <div class="container"> | |
| <a class="btn btn-navbar" data-toggle="collapse" data-target=".nav-collapse"> | |
| <span class="icon-bar"></span> | |
| <span class="icon-bar"></span> | |
| <span class="icon-bar"></span> | |
| </a> | |
| <a class="brand" href="#">Testing</a> | |
| <div class="nav-collapse collapse"> | |
| <!-- NAV BAR ITEM AREA --> | |
| <ul id="nav-item-container" class="nav"></ul> | |
| </div> | |
| </div> | |
| </div> | |
| </div> | |
| <!-- MAIN CONTENT AREA --> | |
| <div id="container" class="container"> | |
| </div> | |
| <script type='text/javascript' src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script> | |
| <script type='text/javascript' src="bootstrap.min.js"></script> | |
| <script type="text/javascript" src="underscore.min.js"></script> | |
| <script type="text/javascript" src="backbone.min.js"></script> | |
| <script type='text/javascript' src="app.js"></script> | |
| </body> | |
| </html> |
Please provide code for dropdown nav bar... This example contains only main menu. No submenu is provided.
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Also, why are you using
to handle routing instead of defining an application router?