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From the Creator of SproutCore and CEO of Sproutit

Charles Jolley

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Top Stories by Charles Jolley

The next release candidate for 1.11.0 will be out very shortly, but I thought it best to post a brief update on the past week’s work as this week saw a concentrated effort on core optimization. First we took another look at the use of arguments lists throughout the framework and found several more occurrences of it being accessed in an inefficient manner. Depending on the browser, accessing arguments in such a way that causes it to be allocated can be up to 80% slower and so it’s really good to have these all fixed. The other piece of optimization work undertaken has been much more difficult. We’ve been looking into high frequency event handling, such as during touch dragging or mouse moving, with an eye towards managing memory better. Since SproutCore already does as much as possible to avoid touching the DOM, the largest issue that affects the “fluidity” of the us... (more)

Aspect-Oriented Programming and You

One of the coolest parts of the new SproutCore View layer is its ability to use aspect-based programming to add behaviors to views. Aspect-based programming is built on the premise that often objects that don’t follow from the same class hierarchy may in fact need similar behaviors. This is especially true in GUI programming when designers come to you and say something like “I came up with this new widget - it looks kind of like a progress bar but it acts like a button when you click on it”. In SproutCore, you capture these common behaviors in a “mixin”.  A mixin is just a colle... (more)

This is pretty cool.  Juan Pinzon has been working hard on our...

This is pretty cool.  Juan Pinzon has been working hard on our IE support for SproutCore. Basically he does the dirty work in IE so you don’t have to. Today he posted a short video where he loads and runs the SproutCore Sample Controls app in 6 major browsers - including an unsupported one - in under a minute. Sample Controls involves building a UI client-side with over 200 controls all at once.  It’s a real stress test.  The fact that the app loads fast enough he can navigate in one minute is really amazing. Great work Juan! ... (more)

Get Time Tracker Source Code in SproutCore

SOA & WOA Magazine Bruz Marzolf is writing a series of blog posts implementing a simple time tracking app in various client-side rich web app frameworks. He just finished his example in SproutCore and including some source code. Here’s what he had to say: SproutCore provides a higher level abstraction that manages when objects are changed and need to be updated, and when they’re busy and shouldn’t be modified, for instance. Bruz’ code is a good example of a basic starter app that’s a little more complex than our todos demo. I’m looking forward to his additional entries in this s... (more)

Introducing the SproutCore Showcase

As you may have noticed above, there is a new section to the sproutcore.com website, Showcase.  This page is meant to act as your one-stop reference for all of SproutCore’s Views and Controls. Previously, you would have had to install SproutCore and run it locally to view the Test Controls app and would have had to search the source code of that app to figure out how the Controls were configured.  Now you can visit http://showcase.sproutcore.com at any time and copy code snippets directly from within the page.  Even better, we’ve expanded the examples significantly to include al... (more)