can
Version:
MIT-licensed, client-side, JavaScript framework that makes building rich web applications easy.
117 lines (92 loc) • 2.22 kB
HTML
<html>
<head>
<style>
p {
font: 12px/16px Arial;
margin: 10px 10px 15px;
}
button {
font: bold 14px/14px Arial;
margin-left: 10px;
}
#grid {
margin: 10px;
}
#timing {
clear: both;
padding-top: 10px;
}
.box-view {
width: 20px; height: 20px;
float: left;
position: relative;
margin: 8px;
}
.box {
border-radius: 100px;
width: 20px; height: 10px;
padding: 5px 0;
color: #fff;
font: 10px/10px Arial;
text-align: center;
position: absolute;
}
</style>
</head>
<body>
<button id='start'>Start</button>
<button id='stop'>Stop</button>
<script type="text/javascript" src="../../node_modules/steal/steal.js" main="@empty"></script>
<script type="text/javascript">
steal("can/view/mustache", function(){
var template = can.view.mustache(
"{{#each boxes}}"+
"<div class='box-view'>"+
"<div class='box' id='box-{{number}}' style='top: {{top}}px; left: {{left}}px; background: rgb(0,0,{{color}});'>"+
"{{content}}"+
"</div>"+
"</div>"+
"{{/each}}");
var boxes = [],
Box = can.Map.extend({
count: 0,
content: 0,
tick: function(){
var count = this.attr("count")+1
this.attr({
count: count,
left: Math.cos(count / 10) * 10,
top: Math.sin(count / 10) * 10,
color: count % 255,
content: count
})
}
});
for(var i =0; i < 100; i++) {
boxes.push( new Box({ number: i }) );
}
var frag = template({boxes: boxes});
var div = document.createElement("div")
document.body.appendChild(div)
div.appendChild(frag)
var count = 0;
$("#start").click(function(){
var start = new Date();
setTimeout(function(){
count++
for(var n = 0 ; n < boxes.length; n++) {
boxes[n].tick();
}
if(count < 100) {
setTimeout(arguments.callee, 0);
} else {
console.log("100 spinning boxes spinning 100 times", new Date - start)
count = 0;
}
},0)
})
})
</script>
</body>
</html>