Ti.UI.iOS.PreviewContext with depending data

test.js

var window = Ti.UI.createWindow();

var context = Ti.UI.iOS.createPreviewContext({
	contentHeight: 350,
	preview: createPreview()
});

var table = Ti.UI.createTableView({
	previewContext: context,
	data: [{title: "Test 1", data: 1},{title: "Test 2", data: null}]
});

window.add(table);
window.open();


table.addEventListener("touchstart", function(e) {
	Ti.API.warn("touchstart");
	Ti.API.warn(e);

	var row = e.source;

	if(row.data == null) {
		context.preview = null;
	} else {
		context.preview = createPreview();
	}
});

context.addEventListener("peek", function(e) {
	Ti.API.warn("peek");
	Ti.API.warn(e);
});

context.addEventListener("pop", function(e) {
	Ti.API.warn("pop");
	Ti.API.warn(e);
});

function createPreview() {
	return Ti.UI.createView({
		backgroundColor: "#f00"
	});
}