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index-08.html
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index-08.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>php|tek 2012 - Writing bad JavaScript with Mario!</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="author" content="ryan@knplabs.com">
<!-- Le styles -->
<link href="css/bootstrap.css" rel="stylesheet">
<style type="text/css">
body {
padding-top: 60px;
padding-bottom: 40px;
}
</style>
<link href="css/bootstrap-responsive.css" rel="stylesheet">
<link href="css/style.css" rel="stylesheet">
<!-- Le HTML5 shim, for IE6-8 support of HTML5 elements -->
<!--[if lt IE 9]>
<script src="js/html5.js"></script>
<![endif]-->
</head>
<body>
<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="#">php|tek JavaScript Playground</a>
<div class="nav-collapse">
<ul class="nav">
<li><a href="index.html">Home</a></li>
<li><a href="http://knpuniversity.com">KnpUniversity.com (shameless plug)</a></li>
</ul>
</div><!--/.nav-collapse -->
</div>
</div>
</div>
<div class="container">
<div class="row">
<div class="span12">
<h1>8 - A Backbone View</h1>
<div class="mario-world row-fluid">
<div class="span8">
<div class="mario box">
.mario
<div class="luigi box">
.luigi
<div class="kick-butt">
<img src="images/luigi.gif" alt="Luigi, kicking ass" class="luigi-himself" />
<img src="images/fireball.gif" alt="fireball!" class="fireball" />
<img src="images/goomba.gif" alt="Enemy" class="enemy" />
<img src="images/bam.gif" alt="BAM!" class="bam-explode" />
</div>
<a href="#" class="peach box">
.peach
</a>
</div>
</div>
</div>
<div class="span4 log"></div>
</div>
<a href="#" class="add-more-luigis btn"><i class="icon-plus"></i>Add more Luigis!</a>
</div>
</div>
<div class="alert alert-info">
<i class="icon-info-sign"></i>
Find the code! View source or go to:
<a href="https://github.com/weaverryan/php-js-playground/tree/08-backbone-view">https://github.com/weaverryan/php-js-playground/tree/08-backbone-view</a>
</div>
<div class="pagination">
<ul>
<li><a href="index-07.html">Prev</a></li>
</ul>
</div>
</div> <!-- /container -->
<a href="https://github.com/weaverryan/php-js-playground"><img style="position: absolute; top: 0; right: 0; border: 0; z-index: 1050;" src="https://s3.amazonaws.com/github/ribbons/forkme_right_green_007200.png" alt="Fork me on GitHub"></a>
<!-- Le javascript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="js/jquery.js"></script>
<script src="js/underscore.js"></script>
<script src="js/backbone.js"></script>
<script type="text/javascript">
/* this is a self-executing JavaScript block
* the purpose is for it to do some sort of logic or setup, but completely
* inside this bubble. We don't care at all what goes on inside, and we
* event pass the jQuery object into this function (see end of the block).
*
* The internal block returns the finished object, and that's all we care about
* The zombie apocalypse could have broken out inside, and we really wouldn't care
*/
window.MagicBoxes = (function($) {
return Backbone.View.extend({
logCount: 0,
// specify events you want right here, backbone handles applying these using "delegate" events
events: {
'click .luigi': '_handleLuigiClick',
'click': '_handleEventLogging'
},
/*
* This method is automatically called by backbone
*/
initialize: function(options) {
/*
* Underscore's bindAll method accomplishes the same thing
* as jQuery.proxy: to ensure that when these methods are
* called, "this" really means this object.
*
* In PHP, this would be as if we could call a function on an object,
* but force $this to be something different inside that method:
*
* $foo = new Foo();
* $bar = new Bar();
*
* // this is totally made-up, just for analogy
* // call $foo->doThings(), but make $this actually be $bar in that method
* call_user_function_array(array($foo, 'doThings'), array(), $bar));
*/
_.bindAll(this, '_handleLuigiClick', '_handleEventLogging')
},
makeLuigiFight: function($luigi) {
// alternatively, we could say
// var $luigi = $(event.currentTarget);
$luigi.addClass('active');
var $fireball = $luigi.find('.fireball');
var $enemy = $luigi.find('.enemy');
var $bam = $luigi.find('.bam-explode');
$fireball.animate({
left: '+=320'
}, 1000, function() {
$fireball.hide();
$enemy.hide();
$bam.show();
setTimeout(function() {
$luigi.removeClass('active');
$fireball.css({left: '70px'});
$fireball.show();
$enemy.show();
$bam.hide();
}, 1000);
});
},
_handleLuigiClick: function(event) {
// *almost* the same as returning false, but better, for one,
// because it does not stop event propagation
event.preventDefault();
// use currentTarget, because it's the element that was actually attached to this event
this.makeLuigiFight($(event.currentTarget));
this.logEvent(event, 'Luigi click');
},
_handleEventLogging: function(event) {
// handles the click on the whole wrapper to log events
event.preventDefault();
this.logEvent(event, 'Generic box click');
},
/*
* Re-usable function to log details about an event
*/
logEvent: function(event, label) {
// print out some details about the event
var $log = this.$el.find('.log');
// the logCount is temporarily broken! See my note below
var html = '<span class="badge badge-info">'+this.logCount+'</span>';
html += '<h4>'+label+'</h4>'
html += '<span class="label">target:</span> .' + $(event.target).attr('class') + '<br/>';
html += '<span class="label">currentTarget:</span> .' + $(event.currentTarget).attr('class') + '<br/>';
html += '<span class="label">delegateTarget:</span> .' + $(event.delegateTarget).attr('class');
$log.prepend('<div class="log-row">'+html+'</div>');
// increase the local logCount variable
this.logCount++;
}
});
})(jQuery);
jQuery(document).ready(function() {
// initialize our little application
var magicBoxApp = new MagicBoxes({
// in a backbone view, pass the "el" as one of the options
el: $('.mario-world')
});
// add a whole other luigi block
$('.add-more-luigis').on('click', function(event) {
event.preventDefault();
var $luigi = $('.mario-world .luigi:first');
var $newLuigi = $luigi.clone();
$luigi.after($newLuigi);
});
});
</script>
</body>
</html>