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index.html
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<!DOCTYPE html>
<html>
<head>
<title>PNG Crush</title>
<style>
@import url(http://fonts.googleapis.com/css?family=Lobster);
* {
margin: 0;
padding: 0;
line-height: 1;
}
body {
background: #FFF url(bg.png) repeat-x;
font-family: Arial;
}
h1 {
font-family: 'Lobster', cursive;
font-size: 48px;
text-shadow: 1px 1px 0px #BF305C, 1px 2px 0px #BF305C, 2px 3px 0px #BF305C, 2px 4px 0px #BF305C, 3px 5px 0px #80203D, 3px 5px 5px #80203D;
text-align: center;
color: #FE729D;
padding: 30px;
}
h1 span {
color: #AD98FE;
text-shadow: 1px 1px 0px #7360BF, 1px 2px 0px #7360BF, 2px 3px 0px #7360BF, 2px 4px 0px #7360BF, 3px 5px 0px #55468C, 3px 5px 5px #55468C;
}
a {
text-decoration: none;
}
#dropbox {
width: 320px;
height: 200px;
margin: 0 auto;
margin-bottom: 30px;
border: solid 1px #CCC;
border-bottom: none;
background: #FFFF5E;
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#FFFCCB', endColorstr='#FFFF5E');
background-image: linear-gradient(bottom, #FFFF5E 0%, #FFFCCB 67%);
background-image: -o-linear-gradient(bottom, #FFFF5E 0%, #FFFCCB 67%);
background-image: -moz-linear-gradient(bottom, #FFFF5E 0%, #FFFCCB 67%);
background-image: -webkit-linear-gradient(bottom, #FFFF5E 0%, #FFFCCB 67%);
background-image: -ms-linear-gradient(bottom, #FFFF5E 0%, #FFFCCB 67%);
background-image: -webkit-gradient(
linear,
left bottom,
left top,
color-stop(0, #FFFF5E),
color-stop(0.67, #FFFCCB)
);
border-radius: 10px;
box-shadow: 0 3px 2px rgba(0, 0, 0, 0.5), inset 0 0 12px rgba(0, 0, 0, 0.25);
transition: opacity 0.25s linear;
-moz-transition: opacity 0.25s linear;
-webkit-transition: opacity 0.25s linear;
}
#dropbox.disabled {
opacity: 0.25;
}
#dropbox span {
display: block;
font-family: 'Lobster', cursive;
color: #858507;
font-size: 24px;
text-align: center;
line-height: 200px;
text-shadow: 1px 1px 0 #F0FF8F, 2px 2px 2px rgba(0, 0, 0, 0.5);
font-size: 38px;
}
#console {
background: #301D10;
color: #FFFFE5;
padding: 10px;
border-radius: 10px;
box-shadow: 0 3px 2px rgba(0, 0, 0, 0.5), inset 0 0 40px rgba(0, 0, 0, 0.25);
text-shadow: 0 1px 0 #000, 0 2px 0 #000;
margin-bottom: 10px;
width: 700px;
margin: 0 auto;
margin-bottom: 30px;
word-wrap: break-word;
line-height: 1.2em;
overflow: hidden;
}
#output {
margin: 0 auto;
margin-bottom: 60px;
text-align: center;
background: url(checkerboard.gif);
width: 250px;
border-radius: 10px;
box-shadow: 0 3px 2px rgba(0, 0, 0, 0.5);
overflow: hidden;
}
#output .inner {
display: table-cell;
vertical-align: middle;
width: 250px;
height: 250px;
}
#output img {
margin: 0 auto;
display: block;
max-width: 250px;
max-height: 250px;
}
.download {
position: fixed;
bottom: 0;
right: 0;
margin: 20px;
font-family: 'Lobster', cursive;
background: #FE729D;
font-weight: bold;
color: #FFF;
text-shadow: 0 1px 0 rgba(0, 0, 0, 0.75);
padding: 10px;
border-radius: 10px;
box-shadow: 0 3px 2px rgba(0, 0, 0, 0.5), inset -2px -2px 5px rgba(0, 0, 0, 0.125);
display: inline-block;
}
footer {
position: fixed;
bottom: 0;
left: 0;
background: rgba(0, 0, 0, 0.5);
padding: 10px;
color: #FFF;
box-shadow: 0 0 2px rgba(0, 0, 0, 0.5);
border-radius: 0 10px 0 0;
font-size: 11px;
}
footer a {
color: #FFF;
font-weight: bold;
}
footer a:hover {
text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}
</style>
<script>
window.URL = window.URL || window.webkitURL;
var file;
var dropboxElement, consoleElement, outputElement;
var worker;
function initWorker() {
worker = new Worker("worker.js");
worker.onmessage = function(event) {
var message = event.data;
if(message.type == "stdout") {
consoleElement.innerHTML += message.line + '\n';
} else if(message.type == "start") {
consoleElement.innerHTML = '';
} else if(message.type == "done") {
//
consoleElement.innerHTML += "Done!";
//
var imageElement = getImage(message.data);
outputElement.appendChild(imageElement);
//
var downloadLinkElement = document.createElement('a');
downloadLinkElement.className = 'download';
downloadLinkElement.download = file.name;
downloadLinkElement.href = imageElement.src;
downloadLinkElement.innerHTML = 'Download';
document.body.appendChild(downloadLinkElement);
} else if (message.type == "ready") {
consoleElement.innerHTML = "I'm ready! ..."
}
};
};
function getImage(fileData) {
//
var blob = new Blob([fileData], {type: 'image/png'});
//
var src = window.URL.createObjectURL(blob);
//
var imageElement = document.createElement('img');
imageElement.src = src;
return imageElement;
};
document.addEventListener('DOMContentLoaded', function () {
//
dropboxElement = document.getElementById("dropbox");
consoleElement = document.getElementById("console");
outputElement = document.getElementById("output").children[0];
initWorker();
//
function noopHandler(event) {
event.preventDefault();
};
dropboxElement.addEventListener("dragenter", noopHandler, false);
dropboxElement.addEventListener("dragexit", noopHandler, false);
dropboxElement.addEventListener("dragover", function(event) {
event.preventDefault();
event.dataTransfer.dropEffect = 'copy';
}, false);
dropboxElement.addEventListener("drop", function(event) {
event.preventDefault();
if(dropboxElement.className == "disabled" || event.dataTransfer.files.length == 0) return; // TODO: Error message
var files = event.dataTransfer.files;
file = files[0];
if(file.type != "image/png") return; // TODO: Error message
//
dropboxElement.className = "disabled";
var fileReader = new FileReader();
function onloadend(event) {
//
var arrayBuffer = event.target.result;
var data = new Uint8Array(arrayBuffer);
worker.postMessage({
'type' : 'file',
'data' : data
});
//
worker.postMessage({
'type' : 'command',
'command' : 'go'
});
};
if(fileReader.addEventListener) {
fileReader.addEventListener('loadend', onloadend, false);
} else {
fileReader.onloadend = onloadend;
}
fileReader.readAsArrayBuffer(file);
}, false);
});
</script>
</head>
<body>
<header><h1>PNG<span>Crush</span></h1></header>
<a href="http://github.com/richardassar/pngcrush.js"><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://s3.amazonaws.com/github/ribbons/forkme_right_darkblue_121621.png" alt="Fork me on GitHub"></a>
<div id="dropbox"><span>Drop a PNG here</span></div>
<pre id="console">Loading, please wait ...</pre>
<div id="output"><div class="inner"></div></div>
<footer><p>Designed and developed by <a href="http://github.com/richardassar">richardassar</a> | Powered by <a href="https://github.com/kripken/emscripten">Emscripten</a></p></footer>
<script type="text/javascript">
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-3384663-9']);
_gaq.push(['_trackPageview']);
(function() {
var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
})();
</script>
</body>
</html>