Lightning Launcher

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====== About the script ======
  * Purpose : This script will make your Panel scroll automatically, like a slideshow
  * Author : F43nd1r
  * Idea : Pierre Hébert
  * Current Version : 3.0
  * Link : https://plus.google.com/115366157037831519359/posts/84DvszxGQXA
  * Video : https://plus.google.com/115366157037831519359/posts/9eUTw8cCCpi

====== Changelog ====== 
  * Version 1.0 (1/4/2014): initial release in wiki
  * Version 2.0 (27/7/2014): complete new coded, only one Script
  * Version 3.0 (7/9/2014): added vertical support, added desktop support, switched from panelID to itemID

====== How to use the script ======
  * set up the configuration at the beginning of the script. 
  * if you want the slideshow to start automatically, set the script in the resumed and the paused event of the container
  * if you want to start and stop it manually create a shortcut to the spcript  or set it to other events
  * every time you perform that action, the slideshow will be toggled
  * watch it sliding! 

====== Issues and hints ======
  * if something goes wrong,  first to try is restart launcher 

//please report all bugs in the g+ community//

====== Script code ======
<sxh javascript;>//config
var waitingTime=3000;//time between page switches, in ms, not exact
var itemID=0x000001;//if you take the ID from hierachy, put a '0x' in front of it, the ID of any item in the container
var notify=false;//mainly for debug, creates toasts with status
var vertical=false;//false for horizontal, true for vertical
//endconfig

//start
if((typeof running==='undefined'||!running))
{
	var c=LL.getItemById(itemID).getParent();
	if(c==null)
	{
		if(notify)Android.makeNewToast("Failed to load panel",true).show();
		return;
	}
	running=true;
	start();
}
//stop
else
{
	running=false;
}

function start()
{
	if(!vertical)
	{
		w=c.getWidth();
		if(w==0)
		{
			setTimeout(start,50);
			return;
		}
		box=c.getBoundingBox();
		l=box.getLeft();
		d=box.getRight()-l;
		y=c.getPositionY();
	}
	else
	{
		h=c.getHeight();
		if(h==0)
		{
			setTimeout(start,50);
			return;
		}
		box=c.getBoundingBox();
		t=box.getTop();
		b=box.getBottom()-t;
		x=c.getPositionX();
	}
	if(notify)Android.makeNewToast("Slideshow started",true).show();
	step();
}

function step()
{
	if(!running)
	{
		if(notify)Android.makeNewToast("Slideshow stopped",true).show();
		return;
	}
	if(typeof a==='undefined')a=0;
	a+=2;
	if(a>=waitingTime)
	{
		var goTo=(!vertical?((Math.floor(c.getPositionX()/w)*w-l+w)%d+l):((Math.floor(c.getPositionY()/h)*h-t+h)%b+t));
		c.setPosition(vertical?x:goTo,!vertical?y:goTo);
		a=0;
	}
	setTimeout(step,1);
}
</sxh>
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