Lightning Launcher

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====== About the script ======
  * Purpose : Animate panels to look like the Reddit app menu animation
  * Author : [[http://www.google.com/+BogdanTautuTBog|TBog]]
  * Link: [[https://plus.google.com/113849548683946155652/posts/b7kH4ryEkvH|requested post]]

====== How to use the script ======

This is how the panels should look (vertical position and height are not important).
[[https://lh5.googleusercontent.com/-vouYHHAtZhs/UzwNHyUvpHI/AAAAAAAARSk/2MWUSg_ANOA/w1078-h854-no/2014-04-02+15.32.00.png|Screen]]

  * Left and right panels must not be on grid but must have the width of the screen minus one cell
  * Center panel must be on top and have a opaque background to hide the other two panels
  * Stop points should have the following options set:
    - left stop point
        * Behavior: Barrier, Snapping
        * Direction: Left to right, Right to left
        * Match edges: Left
    - center stop point
        * Behavior: Stop scroll, Stop drag, Snapping
        * Direction: Left to right, Right to left
        * Match edges: Left
    - right stop point
        * Behavior: Barrier, Snapping
        * Direction: Left to right, Right to left
        * Match edges: Left
  * Set the script on the Position changed event of the desktop

**Important!**
Replace 0x40004 and 0x40005 from the script with the ids of your panels.
====== Script code ======
<code>
var c = LL.getCurrentDesktop();
var cell = c.getCellWidth();
/* left panel */
var pLeft = c.getItemById(0x40005);
/* right panel */
var pRight = c.getItemById(0x40004);
/* i assume that one cell of the main desktop page will still be visible after stop point reached */
var w = c.getWidth();
var ww = w-cell;
var x = c.getPositionX()/ww;
ww = ww/2;

if (x <= 0)
	pLeft.setPosition(-ww + x*ww, pLeft.getPositionY());

if (x >= 0)
	pRight.setPosition(cell + ww + x*ww, pRight.getPositionY());
</code>
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