lsmith’s gists

lsmith / gist:5344236

Created April 9, 2013 09:08

Eventx design review, status update agenda

Intro, history
Goals

Performance
Memory usage
Size
Build to customize

General design overview

Events are stateless, nameless
Publish events statically or on an instance
Subscriptions are managed on the target

lsmith / example.html

Last active December 15, 2015 16:39

WIP IO implementation using transports with send(requestObj, callback(err, data)) and a generic io(requestObj[, callback]) that returns promises.

	<!doctype html>
	<html>
	<head>
	<title>IO with transports and promises</title>
	</head>
	<body>
	<script src="http://yui.yahooapis.com/3.9.1/build/yui/yui.js"></script>
	<script>
	// sm-io is an alias for sm-io-core and sm-io-xhr. The two modules don't require one another.
	YUI({ filter: 'raw' }).use('sm-io', function (Y) {

lsmith / gist:5271961

Last active December 15, 2015 14:09

	var dataPromise = new Y.Promise(function (resolve, reject) {
	var data = [];

	function getData(offset) {
	return new Y.Promise(function (dataResolve, dataReject) {
	Y.io('getdata.php?offset=' + offset, {
	on: {
	success: function (id, response) {
	var dataset = Y.JSON.parse(response.responseText);

lsmith / gist:5117861

Last active December 14, 2015 16:49

Getting an idea of what the expectation of behavior between on() and after() phase of a stopped event is.

	var child = new Y.EventTarget({ emitFacade: true }),
	parent = new Y.EventTarget({ emitFacade: true }),
	grandparent = new Y.EventTarget({ emitFacade: true });

	child.addTarget(parent);
	parent.addTarget(grandparent);

	child.publish('foo', {
	defaultFn: function () { console.log("default function"); }
	});

lsmith / gist:5106331

Created March 7, 2013 08:02

Publish a custom event that respects promises returned from the defaultFn.

	function promiseFire(data) {
	var event = this,
	target = this.host;

	event._firing = event._firing.then(function () {
	return new Y.Promise(function (resolve, reject) {
	// Execute on() subscribers
	var e = Y.merge({
	preventDefault: function () {
	this.prevented = true;

lsmith / gist:4403715

Created December 29, 2012 01:14

YUI 3 data binding. First pass. Supports lots of stuff that I don't have time to document at this very moment. Maybe you can figure it out from the code?

	YUI.add('data-bind', function (Y) {

	Y.DataBind = function (config) {
	if (!Y.Base \|\| !(this instanceof Y.Base)) {
	// Being used as a standalone class
	this.initializer(config);
	// alias instance.destroy() to destructor for convenience
	this.destroy = this.destructor;
	}
	};

lsmith / gist:4272500

Created December 12, 2012 23:04

Potential patch for 'tap' synthetic event's notifier custom event to allow e.preventDefault() or e.stopPropagation() to have that effect on the subsequent 'click' event.

	notifier.handle.evt.fire = function (e) {
	var subs = this._subscribers.concat(this._afters),
	args = Y.Array(arguments, 0, true),
	i, len, halt;

	for (i = 0, len = subs.length; i < len; ++i) {
	halt = subs[i].notify(args, this);

	// stopImmediatePropagation
	if (halt === false \|\| e.stopped > 1) {

lsmith / gist:3124468

Created July 16, 2012 19:17

Patch for 3.6.0pr2 and pr3 DataTable

	Y.DataTable.BodyView.prototype._afterModelListChange = function (e) {
	var handles = this._eventHandles;

	if (handles.dataChange) {
	handles.dataChange.detach();
	delete handles.dataChange; // <-- this line is missing in the core code
	this.bindUI();
	}

	if (this.tbodyNode) {

lsmith / gist:2872732

Created June 5, 2012 04:56

	columns: [
	'item',
	'cost',
	{
	key: 'price',
	allowHTML: true,
	formatter: function (o) {
	var words = o.value.split(/\s+/),
	i = words.length,
	word;

lsmith / gist:2784650

Created May 24, 2012 22:39

	var suite = new Y.Test.Suite("yo yo ma");

	suite.add(new Y.Test.Case({
	"foo should bar": function () {
	var test = this,
	node = Y.one('#foo');

	node.on('focus', function () {
	test.resume(function () {
	// Assertions go here

Luke Smith lsmith