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<!DOCTYPE html>
<html>
<!--
Copyright 2010 The Closure Library Authors. All Rights Reserved.
Use of this source code is governed by the Apache License, Version 2.0.
See the COPYING file for details.
-->
<head>
<title>goog.events.FileDropHandler Demo</title>
<script src="../base.js"></script>
<script>
goog.require('goog.debug.DivConsole');
goog.require('goog.debug.Logger');
goog.require('goog.dom');
goog.require('goog.events.FileDropHandler');
</script>
<link rel="stylesheet" href="css/demo.css">
</head>
<body>
<h2>Demo of goog.events.FileDropHandler</h2>
<fieldset>
<legend>Demo of the <strong>goog.events.FileDropHandler</strong>:</legend>
<label>goog.events.FileDropHandler detects file drag and drop events in
elements. Try dropping a file in the textarea below and watch the event
log at the bottom of the page. Try dropping some text too.<br></label>
<textarea id="drop-zone" rows="5" cols="50"></textarea>
</fieldset>
<fieldset class="goog-debug-panel">
<legend>Event Log</legend>
<div id="log" style="height: 400px;"></div>
</fieldset>
<script>
var dropZone = goog.dom.getElement('drop-zone');
var handler = new goog.events.FileDropHandler(dropZone, true);
var logger = goog.debug.Logger.getLogger('demo');
goog.events.listen(handler, goog.events.FileDropHandler.EventType.DROP,
function(e) {
logger.shout('DROP event detected!');
logger.info('dataTransfer:\n' +
goog.debug.deepExpose(e.getBrowserEvent().dataTransfer));
var files = e.getBrowserEvent().dataTransfer.files;
for (var i = 0; i < files.length; i++) {
// If you want to access the filename you should try both
// alternatives.
var file = files[i];
var fileName = file.name || file.fileName;
logger.info('File name: ' + fileName);
// Sample code to upload the dropped files (commented out).
// var xhr = new goog.net.XmlHttp();
// xhr.open('POST', 'http://www.myserver.com/upload');
// xhr.send(file);
}
});
goog.debug.LogManager.getRoot().setLevel(goog.debug.Logger.Level.FINER);
var logconsole = new goog.debug.DivConsole(goog.dom.getElement('log'));
logconsole.setCapturing(true);
</script>
</body>
</html>
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