Folding elements

Folding is a neat effect that gives the appearance that the element it's applied to is being folded up like a piece of paper. It achieves this by moving the bottom edge of the specified element up to 15 pixels from the top, then moving the right edge completely over towards the left edge.

The distance from the top that the element is shrunk to in the first part of this effect is exposed as a configurable property by the effect's API. So, this is something that we can adjust to suit the needs of our implementation. This property is an integer.

We can see this effect in action by modifying the dialog example once again. In effectClip.html, change the effect source file for clip to fold:

<script src="development-bundle/ui/jquery.ui.effect-fold.js"></script>

Then change the hide event callback to the following:

hide: {
  effect: "fold",
  size: 200,
  duration: 1000
}

Save this as effectFold.html. This time we make use of the size configuration option to make the effect...