[TIMOB-26550] Windows: Add support for file property to HTTPClient

function createButton(title, filename, url) {
	var b = Ti.UI.createButton({
		title : title
	});
 
	b.addEventListener("click", function() {
		var xhr = Titanium.Network.createHTTPClient();
		if (filename != null) {
			xhr.file = filename;
		}
		xhr.onload = function() {
			var responseFilePath = this.responseData.nativePath;
			alert("responseData.nativePath = " + responseFilePath);
			if (responseFilePath != null) {
				imageView.image = responseFilePath;
			} else {
				imageView.image = this.responseData;
			}
		};
		xhr.open('GET', url);
		xhr.send();
	});
	
	return b;
}
 
 
var win = Titanium.UI.createWindow({
	title: "The 'file' property for HTTPClient",
	layout: "vertical"
});
 
var imageView = Titanium.UI.createImageView({
	top : 5,
	height : 200,
	width : 300
});
 
win.add(createButton("Not setting 'file' (download a small image)", null, "http://developer.appcelerator.com/blog/wp-content/themes/newapp/images/appcelerator_avatar.png?s=48"));
win.add(createButton("Not setting 'file' (download a large image)", null, "http://2.bp.blogspot.com/-z-cZ7JirojQ/Tc8OMAAqbLI/AAAAAAAAAfc/slhGE764cyY/s1600/Cars+2.jpg"));
win.add(createButton("'file' is in tempDirectory", Ti.Filesystem.tempDirectory + "/sky.jpg", "http://www.forestwander.com/wp-content/original/2009_01/Sky-View.JPG"));
win.add(createButton("'file' is in applicationDataDirectory", Ti.Filesystem.applicationDataDirectory + "/flower.jpg", "http://flowerdeliverygo.com/wp-content/uploads/2014/05/flower-delivery.jpg"));
win.add(createButton("'file' is in externalStorageDirectory", Ti.Filesystem.externalStorageDirectory + "/fruit.jpg", "http://southernbite.com/wp-content/uploads/2012/05/SouthernBiteFruitSalad-2.jpg"));
 
win.add(imageView);
 
win.open();