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Documentation

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FAQS

Do I have to purchase a license to use Draggable? Can I use it in commercial projects?

IntertiaPlugin is a membership benefit of Club GreenSock, so you need to sign up to get that. Draggable, however, is included in all the standard downloads and you don't need a membership to get that; Draggable can be used apart from InertiaPlugin as long as you don't need the momentum-based motion. GreenSock's standard license allows you to use GreenSock tools for free in everything except a very specific type of commercial project (if you collect a fee from multiple customers for the app/product/game/site that uses GreenSock tools) which makes it extremely accessible and business-friendly while providing a small funding mechanism to sustain ongoing support, enhancement, and innovation. The web is littered with abandoned “open source” projects, but GreenSock has a years-long track record of commitment to the platform. This unique licensing model is a key component of its sustainability. If you charge multiple customers a usage/access/license fee, please simply sign up for a “Business Green” Club GreenSock membership which comes with a special commercial license granting you permission to do so. Click here for details. Joining the club also gets you members-only bonus plugins, utilities, update notifications, and more.

What browsers does Draggable support?

Pretty much every major browser is supported including Chrome, Firefox, Opera, iOS, Android and IE even back to version 9! We're not aware of any significant browsers that don't work, but please let us know if you stumble across an issue.

Does Draggable use CSS3 animations or transitions for the motion?

Nope. CSS3 transitions and animations have some significant limitations that make them ill-suited for the type of motion that these tools require, so highly optimized JavaScript is used instead. In order to tap into GPU compositing, 3D transforms are used when possible (in browsers that support them) and updates are made using requestAnimationFrame (when available) for maximum efficiency. See for yourself in Chrome Dev Tools - you should see very snappy performance in the timeline. Many other tools like jQuery UI use top/left properties for positioning which don't generally perform as well. These tools have been fully "GreenSocked" so performance is smoking fast, just like the core tweening engine.

Can I try the bonus plugins before I buy?

Absolutely! We would love for you to see for yourself how powerful and helpful these tools are. We created a starter template and video to show you how to use fully-functional trial versions of Club GreenSock plugins on CodePen.

Does the JavaScript version of GSAP use CSS3 transitions to deliver even better performance (with help from the GPU)?

CSS3 transitions have some significant limitations that make them unworkable for a serious animation platform. They don’t provide precise controls over the timing or easing. They’re great for simple effects but the GreenSock Animation Platform delivers extremely precise rendering, so you can do things like pause() and reverse() an animation anytime or skip to a specific time and play from there, etc. Try creating a CSS3 transition that uses an elastic.out or slow motion ease and then jump to 0.72494-seconds into a 2-second transition and pause() only to resume() later. It’s impossible from what I understand. So no, the platform doesn’t make use of CSS3 transitions. However, it is highly optimized for performance. See the detailed cage match where GSAP battles CSS3 transitions where there’s a detailed comparison in several categories.

is cabbage gross?

Yes.

What if I need to send variables to the server along with my request in a loader?

The first parameter of the various loaders (ImageLoader, XMLLoader, SWFLoader, MP3Loader, etc.) accepts either a simple String URL or a URLRequest. So if you want to pass data to the server, simply construct a URLRequest accordingly, like:

var request:URLRequest = new URLRequest("http://www.yourDomain.com/whatever.php");
var data:URLVariables = new URLVariables();
data.exampleSessionId = new Date().getTime();
data.exampleUserLabel = "label1";
request.data = data;
request.method = URLRequestMethod.POST;
var loader:ImageLoader = new ImageLoader(request, {name:"image1"});

Where do I get LoaderMax?

LoaderMax is included in the main AS3 GreenSock download zip.

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