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Merge branch 'joelrbrandt-new-web-worker-demo'

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Remy Sharp 2013-01-07 23:17:47 +00:00
parent 61fe0b95f6 f07a64c928
commit 4e0d1f7050
2 changed files with 45 additions and 44 deletions
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77
demos/worker.html
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@ -1,38 +1,39 @@
<html>
<head>
<title>Worker</title>
<style>
body {
font-family: sans-serif;
}
#status {
height: 200px;
max-height: 200px;
border: thin solid black;
overflow-y: scroll;
}
#square {
position: absolute;
left: 0px;
top: 0px;
width: 75px;
height: 75px;
background-color: rgba(0, 0, 220, 0.3);
z-index: -1;
}
</style>
</head>
<body>
<h1>Web Worker Demo</h1>
<p>Works in Chrome, Safari, and Firefox. Web worker portion works in Opera.</p>
<p>Use arrow keys to change the direction of the animated square. The square is animated with <em>requestAnimationFrame</em>.</p>
<p>Click the button below to start or stop the worker.</p>
<div><input type="button" value="start worker" id="toggleWorker" /></div>
<h2>Messages from Worker:</h2>
<div id="status"></div>
<div id="square"></div>
<script src="../js/worker-main.js"></script>
</body>
</html>
<title>Web Worker</title>
<style>
body {
font-family: sans-serif;
}
#status {
height: 200px;
max-height: 200px;
border: thin solid #aaa;
overflow-y: scroll;
}
#animationWrapper {
position: relative;
height: 50px;
}
#square {
position: absolute;
left: 0px;
top: 0px;
width: 50px;
height: 50px;
background-color: rgba(0, 0, 220, 0.3);
}
</style>
<article>
<p>This demo shows how main window animation isn't interrupted by Web Workers. <small>Note that the animation does not work in Opera (due to lack of requestAnimationFrame support).</small></p>
<p>Use arrow keys to change the direction of the animated square. The square is animated with <em>requestAnimationFrame</em>.</p>
<div id="animationWrapper">
<div id="square"></div>
</div>
<p>Click the button below to start or stop the worker.</p>
<div><input type="button" value="start worker" id="toggleWorker" /></div>
<h2>Messages from Worker:</h2>
<div id="status"></div>
<script src="/js/worker-main.js"></script>
</article>

12
js/worker-main.js
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@ -4,7 +4,7 @@
(function () {
"use strict";
var SQUARE_SIZE = 75;
var SQUARE_SIZE = 50;
var MOVEMENT_STEP = 3;
var requestAnimationFrame = window.requestAnimationFrame || window.mozRequestAnimationFrame ||
@ -52,26 +52,26 @@
var top = parseInt(square.style.top, 10);
var right = left + SQUARE_SIZE;
var bottom = top + SQUARE_SIZE;
switch (direction) {
case 37: // left
if (left > 0) {
square.style.left = left - MOVEMENT_STEP;
square.style.left = left - MOVEMENT_STEP + 'px';
}
break;
case 38: // up
if (top > 0) {
square.style.top = top - MOVEMENT_STEP;
square.style.top = top - MOVEMENT_STEP + 'px';
}
break;
case 39: //right
if (right < document.documentElement.clientWidth) {
square.style.left = left + MOVEMENT_STEP;
square.style.left = left + MOVEMENT_STEP + 'px';
}
break;
case 40: // down
if (bottom < document.documentElement.clientHeight) {
square.style.top = top + MOVEMENT_STEP;
square.style.top = top + MOVEMENT_STEP + 'px';
}
break;
default: