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index.html
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index.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<link rel="stylesheet" href="demo/bootstrap.css" />
<style type='text/css'>
html, body { background-color: #eee; }
body { padding-top: 15px; background: url(demo/light_toast.png); }
#sidebar
{
left:auto;
right:20px;
width:260px;
position:fixed;
min-height: 40px;
overflow-y: auto;
background: white;
top: -10px;
bottom: -10px;
margin: 0;
border: solid 2px #333;
box-shadow: 0 0 10px #999;
}
#sidebar.drag
{
background: #f9b660;
}
.offset1 {
margin-left: 60px;
}
.offset2 {
margin-left: 80px;
}
.container-fluid > .content{ margin-right:340px; margin-left:0;}
#dropzone { padding:20px; border: solid 3px #050; text-align: center;}
#dropzone.drag { border: solid 3px #0f0; }
#file-list + small { display:none; }
#file-list:not(:empty) + small { display:block; }
#file-list:empty:before { content: "Add a file using one of the methods to the left and it will show up here."; display:block; }
#file-list { margin: 2px; }
#file-list li { margin:10px 0; list-style: none; }
#file-list li > img { max-width: 30px; max-height: 20px; margin-right: 3px; }
#file-list li .modal img { max-width: 400px; max-height: 400px; }
#file-list li.error { color: red; }
#file-list li.error a.btn { display:none; }
#file-list .group { font-size:1.1em; color:#666; border-bottom: dashed 1px #999; }
#file-list pre { margin:20px 0; border: solid 2px #8d8; display:none; }
#file-list pre.done { border-color: #8d8; }
.arrow_box {
position: relative;
background: #ffffff;
border: 2px solid #333;
}
.arrow_box:after, .arrow_box:before {
left: 100%;
border: solid transparent;
content: " ";
height: 0;
width: 0;
position: absolute;
pointer-events: none;
}
.arrow_box:after {
border-left-color: #ffffff;
border-width: 30px;
top: 50%;
margin-top: -30px;
}
.arrow_box:before {
border-left-color: #333;
border-width: 33px;
top: 50%;
margin-top: -33px;
}
.row p {
margin-bottom: 12px;
}
.row h2 {
margin: 10px 0;
}
#demo {
list-style-type: none;
border-radius: 5px;
margin-right: -7px;
padding: 15px;
}
#sync + strong {
color: #dec857;
}
#async + strong {
color: #7bde57;
}
body:after {
content: "";
display:block;
position:fixed;
top: -50px;
padding: 2px;
border-radius: 50%;
right:-50px;
width: 100px;
height: 100px;
background: #7bde57;
}
body.sync:after {
background: #dec857;
}
.done .filename { color: #357048; }
.done .not-done { display:none; }
.on-done { display:none; }
.done .on-done { display: inline-block; }
</style>
</head>
<body>
<div class="container-fluid">
<div class="content">
<div class="page-header">
<h1><a href='http://bgrins.github.com/filereader.js/'>FileReader.js</a> <small> - Read Files with JavaScript!</small></h1>
</div>
<div class="row">
<div class="offset1">
<h2>Read Files In The Browser</h2>
<p>
FileReader.js is intended to make accessing files via the <a href='http://dev.w3.org/2006/webapi/FileAPI/#FileReader-interface'>FileReader interface</a> easier.
Read more about <a href='http://www.briangrinstead.com/blog/filereaderjs'>the motivation behind filereader.js</a>.
</p>
</div>
</div>
<div class="row">
<div class="offset1">
<h2>No Dependancies</h2>
<p>
FileReader.js does not require any other libraries. <strong>If</strong> you do use jQuery, there is a small plugin wrapping up the functionlity though!
</p>
</div>
</div>
<div class="row">
<div class="offset1">
<h2>Source Code</h2>
<p>
<a class='btn btn-large btn-primary' href='http://github.com/bgrins/filereader.js'>View Project On Github</a>
</p>
<p>
Or you can jump straight to the
<a href='https://raw.github.com/bgrins/filereader.js/master/filereader.js'>filereader.js</a> or
<a href='https://raw.github.com/bgrins/filereader.js/master/filereader.min.js'>filereader.min.js</a>
if you are in a hurry.
</p>
<p>
If you've got some time to look around, check out the <a href='docs/filereader.html' target="_blank">annotated source code</a>!
</p>
</div>
</div>
<div class="row">
<div class="offset1">
<h2>Demonstration</h2>
<p>There are <strong>three ways</strong> to accept input - you can pick and choose any of these.</p>
</div>
</div>
<div class="row">
<ul id='demo' class='offset2 arrow_box'>
<li class=''>
<h3>File Input</h3>
<p>You can access files that users select via an input[type=file]. Try it out below:</p>
<form id='file-form' method="post" enctype="multipart/form-data">
<input type="hidden" name="extra-data" multiple />
<input type="file" id="file-input" name="file-input" multiple />
</form>
</li>
<li class="">
<h3>Drop Zone</h3>
<p id='dropzone'>
Drag and drop files from your desktop here (or select them from the input above).<br />
They will be read in browser.<br />
<img src='demo/arrow.png' width='50' /><br />
</p>
</li>
<li class="">
<h3>Clipboard</h3>
<p>
In some browsers, you can paste images onto a page. Go ahead and 'print screen' then press Ctrl+V to try that out!
</p>
</li>
</ul>
</div>
<div class="row">
<div class="offset1">
<h2>Usage</h2>
<p>
<strong>There is no jQuery or any other library dependancy for FileReader.js</strong>. It will work with a simple call to
<pre class="prettyprint">
<script type='text/javascript' src='filereader.js'></script>
</pre>
<pre class="prettyprint">
var opts = {
dragClass: "drag",
accept: false,
readAsMap: {
'image/*': 'DataURL',
'text/*' : 'Text'
},
readAsDefault: 'BinaryString',
on: {,
beforestart: function(e, file) {
// return false if you want to skip this file
},
loadstart: function(e, file) {
// Native ProgressEvent
},
progress: function(e, file) {
// Native ProgressEvent
},
load: function(e, file) {
// Native ProgressEvent
},
error: function(e, file) {
// Native ProgressEvent
},
loadend: function(e, file) {
// Native ProgressEvent
},
abort: function(e, file) {
// Native ProgressEvent
},
skip: function(e, file) {
// Called when a file is skipped. This happens when:
// 1) A file doesn't match the accept option
// 2) false is returned in the beforestart callback
},
groupstart: function(group) {
},
groupend: function(group) {
}
}
};
</pre>
<pre class="prettyprint">
FileReaderJS.setupInput(document.getElementById('file-input'), opts);
FileReaderJS.setupDrop(document.getElementById('dropzone'), opts);
FileReaderJS.setupClipboard(document.body, opts);
</pre>
</p>
<p>
If you do use jQuery, you could use it as such:
</p>
<pre class="prettyprint">
$("#file-input, #dropzone").fileReaderJS(opts);
$("body").fileClipboard(opts);
</pre>
</div>
</div>
<div class="row">
<div class="offset1">
<h2>Browser Support</h2>
<p>
<ul>
<li>Internet Explorer: <span class='label label-success'>10+</span></li>
<li>Firefox: <span class='label label-success'>10+</span></li>
<li>Chrome: <span class='label label-success'>13+</span></li>
<li>Opera: <span class='label label-success'>12+</span></li>
<li>Safari: <span class='label label-warning'>partial</span></li>
</ul>
For more information, see the <a href='http://caniuse.com/#feat=fileapi'>Full Browser Support Graph for File API</a>
</p>
</div>
</div>
<div class="row">
<div class="offset1">
<h2>Samples</h2>
<p>
Some sites have already implemented FileReader.js - check out their code to get an idea of how it is being used!
<ul>
<li>
<a href='http://mothereffinganimatedgif.com/'>mothereffinganimatedgif</a> - <a href='https://github.com/h5bp/mothereffinganimatedgif/'>source code</a>.
</li>
<li>
<a href='http://instantsprite.com/'>Instant Sprite CSS Sprite Generator</a> - <a href='https://github.com/bgrins/InstantSprite'>source code</a>.
</li>
</ul>
</p>
</div>
</div>
<div class="row">
<div class="offset1">
<h2>Resources</h2>
<p>
I found a lot of information while implementing this plugin. Here are some resources that helped:
<ul>
<li>
<a href='http://www.w3.org/TR/FileAPI/#dfn-filereader'>FileReader specification</a>
</li>
<li>
<a href='http://www.w3.org/TR/FileAPI/#FileReaderSync'>FileReaderSync specification</a>
</li>
<li>
<a href='ttp://www.w3.org/TR/FileAPI/#event-handler-attributes-section'>File API Event Handler specification</a>
</li>
<li>
<a href='http://caniuse.com/#feat=fileapi'>Full Browser Support Graph for File API</a>
</li>
</ul>
</p>
</div>
</div>
</div>
<div class="sidebar well" id="sidebar">
<h4>Demo - Loaded Files </h4>
<hr />
<p>
<form class='form'>
<fieldset>
<div class='controls'>
<label class="radio"><input type='radio' name='load-type' id='sync' /> <strong>Sync</strong> - Using <a target='_blank' href='http://www.w3.org/TR/FileAPI/#FileReaderSync'>FileReaderSync</a></label>
<label class="radio"><input type='radio' name='load-type' id='async' checked='checked' /> <strong>Async</strong> - Using FileReader</label>
</div>
</fieldset>
</form>
</p>
<hr />
<ul id='file-list'></ul>
<small><a href='#' id='clear-list'>clear all items</a></small>
</div>
<footer>
<p></p>
</footer>
</div>
<script src="demo/jquery-1.7.1.js"></script>
<script type='text/javascript' src='filereader.js'></script>
<script src="demo/bootstrap.js"></script>
<script type='text/javascript'>
var filelist = document.getElementById("file-list");
function groupTemplate(groupID, files) {
var html = [];
for (var i = 0; i < files.length; i++) {
var file = files[i];
var id = "group_" + groupID + "_file_" + file.extra.fileID;
html.push(
"<li id='" + id + "' data-fileid='" + file.extra.fileID + "' data-groupid='"+ groupID +"'>" +
"<span class='filename'>" + file.name + "</span> " +
"<div><span class='not-done'><em>Loading...</em></span><span class='on-done'><span class='time-to-load'></span> ms</span></div>" +
"<span class='details'><a href='#' class='btn'>details</a></span> " +
"<div class='modal hide'>" + file.name + "<br />" + file.type + "<br /></div>" +
"<pre>" + JSON.stringify(file, null, '\t') + "</pre>" +
"</li>"
);
}
var start = "<li id='group_" + groupID + "' class='group'>Group: " + groupID + " (" + files.length + " files) </li>";
return start + html.join('');
}
var opts = {
on: {
load: function(e, file) {
var fileDiv = $("#group_" + file.extra.groupID + "_file_" + file.extra.fileID)
fileDiv.addClass("done");
var ms = file.extra.ended - file.extra.started;
fileDiv.find(".time-to-load").text(ms);
if (file.type.match(/image/)) {
// Create a thumbnail and add it to the output if it is an image
var img = new Image();
img.onload = function() {
fileDiv.find(".modal").append(img);
fileDiv.prepend($(img).clone());
};
img.src = e.target.result;
}
else {
//fileDiv.find(".modal").append($("<div />").text(e.target.result));
}
},
error: function(e, file) {
$("#group_" + file.extra.groupID + "_file_" + file.extra.fileID).addClass("error");
},
groupstart: function(group) {
$(filelist).append(groupTemplate(group.groupID, group.files));
$(filelist).find(".details a:not(.initialized)").click(function() {
$(this).closest("li").find(".modal").modal('show');
})
$(filelist).find(".modal:not(.initialized)").addClass("initialized").modal({ show: false }).on("show", function() {
});
},
groupend: function(group) {
$("#group_" + group.groupID).append(
"<div>(Time to load: " + (group.ended - group.started) + "ms)</div>"
);
}
}
};
FileReaderJS.setupInput(document.getElementById('file-input'), opts);
FileReaderJS.setupDrop(document.getElementById('dropzone'), opts);
FileReaderJS.setupDrop(document.getElementById('sidebar'), opts);
FileReaderJS.setupClipboard(document.body, opts);
$(function() {
$(".sidebar").on('click', 'input', function() {
FileReaderJS.sync = $("#sync").is(":checked");
$("body").toggleClass("sync", !!FileReaderJS.sync);
});
$("#clear-list").on("click", function() {
$("#file-list").empty();
return false;
});
$("body").toggleClass("disabled", !FileReaderJS.enabled);
});
</script>
</body>
</html>