Do you imagine how fast we can implement drag an image from your desktop to your browser by using HTML 5?
I found a demo that very useful.
Review the below code:-
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset=utf-8 />
<meta name="viewport" content="width=620" />
<title>HTML5 Demo: File API</title>
<link rel="stylesheet" href="/css/html5demos.css" type="text/css" />
<script src="/js/h5utils.js"></script></head>
<body>
<section id="wrapper">
<header>
<h1>File API</h1>
</header>
<style>
#holder { border: 10px dashed #ccc; width: 300px; height: 300px; margin: 20px auto;}
#holder.hover { border: 10px dashed #333; }
</style>
<article>
<div id="holder"></div>
<p id="status">File API & FileReader API not supported</p>
<p>Drag an image from your desktop on to the drop zone above to see the browser read the contents of the file and use it as the background - without uploading the file to any servers.</p>
</article>
<script>
var holder = document.getElementById('holder'),
state = document.getElementById('status');
if (typeof window.FileReader === 'undefined') {
state.className = 'fail';
} else {
state.className = 'success';
state.innerHTML = 'File API & FileReader available';
}
holder.ondragover = function () { this.className = 'hover'; return false; };
holder.ondragend = function () { this.className = ''; return false; };
holder.ondrop = function (e) {
this.className = '';
e.preventDefault();
var file = e.dataTransfer.files[0],
reader = new FileReader();
reader.onload = function (event) {
holder.style.background = 'url(' + event.target.result + ') no-repeat center';
};
reader.readAsDataURL(file);
return false;
};
</script> <footer><a href="/">HTML5 demos</a>/<a id="built" href="http://twitter.com/rem">@rem built this</a>/<a href="#view-source">view source</a></footer>
</section>
<a href="http://github.com/remy/html5demos"><img style="position: absolute; top: 0; left: 0; border: 0;" src="http://s3.amazonaws.com/github/ribbons/forkme_left_darkblue_121621.png" alt="Fork me on GitHub" /></a>
<script src="/js/prettify.packed.js"></script>
<script>
var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
</script>
<script>
try {
var pageTracker = _gat._getTracker("UA-1656750-18");
pageTracker._trackPageview();
} catch(err) {}</script>
</body>
</html>
Thanks to remy for his demo site.
