mailiverse/web/client/Misc.js

function handleFileSelect(evt)
{
	var files = evt.target.files; // FileList object

	// Loop through the FileList and render image files as thumbnails.
	for ( var i = 0, f; f = files[i]; i++)
	{

		// Only process image files.
		if (!f.type.match('image.*'))
		{
			continue;
		}

		var reader = new FileReader();

		// Closure to capture the file information.
		reader.onload = (function(theFile)
		{
			return function(e)
			{
				// Render thumbnail.
				var span = document.createElement('span');
				span.innerHTML = [ '<img class="thumb" src="', e.target.result,
						'" title="', escape(theFile.name), '"/>' ].join('');
				document.getElementById('list').insertBefore(span, null);
			};
		})(f);

		// Read in the image file as a data URL.
		reader.readAsDataURL(f);
	}
}

//document.getElementById('files').addEventListener('change', handleFileSelect, false);