Progressive enhancement example

by davidsulc

HTML

<script src="http://documentcloud.github.com/underscore/underscore-min.js"></script>
<script src="http://documentcloud.github.com/backbone/backbone-min.js"></script>
<script src="https://raw.github.com/derickbailey/backbone.marionette/master/lib/backbone.marionette.js"></script>
<script type="text/template" id="angry_cats-template">
  <thead>
    <tr class='header'>
      <th>Name</th>
    </tr>
  </thead>
  <tbody>
  </tbody>
</script>

<script type="text/template" id="angry_cat-template">
  <td><%= name %></td>
</script>

<div id="content">
</div>

CSS

/*!
 * Bootstrap v2.0.2
 *
 * Copyright 2012 Twitter, Inc
 * Licensed under the Apache License v2.0
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Designed and built with all the love in the world @twitter by @mdo and @fat.
 */
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
nav,
section {
  display: block;
}
audio,
canvas,
video {
  display: inline-block;
  *display: inline;
  *zoom: 1;
}
audio:not([controls]) {
  display: none;
}
html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}
a:focus {
  outline: thin dotted #333;
  outline: 5px auto -webkit-focus-ring-color;
  outline-offset: -2px;
}
a:hover,
a:active {
  outline: 0;
}
sub,
sup {
  position: relative;
  font-size: 75%;
  line-height: 0;
  vertical-align: baseline;
}
sup {
  top: -0.5em;
}
sub {
  bottom: -0.25em;
}
img {
  height: auto;
  border: 0;
  -ms-interpolation-mode: bicubic;
  vertical-align: middle;
}
button,
input,
select,
textarea {
  margin: 0;
  font-size: 100%;
  vertical-align: middle;
}
button,
input {
  *overflow: visible;
  line-height: normal;
}
button::-moz-focus-inner,
input::-moz-focus-inner {
  padding: 0;
  border: 0;
}
button,
input[type="button"],
input[type="reset"],
input[type="submit"] {
  cursor: pointer;
  -webkit-appearance: button;
}
input[type="search"] {
  -webkit-appearance: textfield;
  -webkit-box-sizing: content-box;
  -moz-box-sizing: content-box;
  box-sizing: content-box;
}
input[type="search"]::-webkit-search-decoration,
input[type="search"]::-webkit-search-cancel-button {
  -webkit-appearance: none;
}
textarea {
  overflow: auto;
  vertical-align: top;
}
.clearfix {
  *zoom: 1;
}
.clearfix:before,
.clearfix:after {
  display: table;
  content: "";
}
.clearfix:after {
  clear: both;
}
.hide-text {
  overflow: hidden;
  text-indent: 100%;
  white-space: nowrap;
}
.input-block-level {
  display: block;
  width: 100%;
  min-height: 28px;
  /* Make inputs at least the height of their button...

JavaScript

MyApp = new Backbone.Marionette.Application();

MyApp.addRegions({
    mainRegion: "#content"
});

AngryCat = Backbone.Model.extend({});

AngryCats = Backbone.Collection.extend({
    model: AngryCat
});

AngryCatView = Backbone.Marionette.ItemView.extend({
    template: "#angry_cat-template",
    tagName: 'tr',
    className: 'angry_cat'
});

AngryCatsView = Backbone.Marionette.CompositeView.extend({
  tagName: "table",
  id: "angry_cats",
  className: "table-striped table-bordered",
  template: "#angry_cats-template",
  itemView: AngryCatView,
  
  appendHtml: function(collectionView, itemView){
    collectionView.$("tbody").append(itemView.el);
  }
});



MyApp.addInitializer(function(options) {
    var view;
    if(options.view){
        console.log("Prebuilt view");
        view = options.view;
    }
    else if(options.cats){
        console.log("Building new view");
        view = new AngryCatsView({
            collection: options.cats
        });
    }
    else{
        alert("No view to display");
    }
    MyApp.mainRegion.show(view);
});

$(document).ready(function() {
    // Here we create a bunch of models at the same time as the collection.
    var cats = new AngryCats([
        new AngryCat({
        name: 'Wet Cat'
    }),
        new AngryCat({
        name: 'Bitey Cat'
    }),
        new AngryCat({
        name: 'Surprised Cat'
    })
        ]);

    var view = new AngryCatsView({collection: cats});

    MyApp.start({
      //cats: cats //use collection to build the view that will be displayed
      view: view //display a prebuilt view, which would typically be used in a case of progressive enhancement
    });
});