Lightning Launcher

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====== About the script ======
  * Purpose : Uses a gif file to make an animated icon
  * Author : [[https://plus.google.com/u/1/105066926163073195690|TrianguloY]]
  * Link: https://plus.google.com/u/1/105066926163073195690/posts/1GpeJs5Ar22

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

Currently the script can only use .gif files, but if you know any icon pack with animated icons that are not gifs, tell me and I'll try with that. Also if you know an icon pack of gif files tell us in comments, as I could only find this one: https://web.archive.org/web/20150320083052/http://www.redworks.com/en/free-flat-animated-icons (NOTE: the site seems to be now a different one. For this reason the link is from the web archive)

The instructions are easy: run the script from the icon, choose a gif file, and accept if you want it to be automatically animated (otherwise you'll need to set the script to an event). If your want to change to another gif file, just run the script again.

Important: the launcher keeps the reference of the gif file. If you remove it or change it's path it will prompt an error.

Note: the more animated icons you have, the slower they all will become. You can change the fps in the script if necessary.
{In the video there are 13 animated icons simultaneously, and they still play at a good rate.}


Technical details:
A Movie file is created with the path chosen as parameter.
Successive timeouts are fired which draws that Movie in the live image of the icon.

====== Script code ======
<sxh javascript>
var fps=60;//frames per second



//classes
LL.bindClass("android.graphics.Movie");
LL.bindClass("android.content.ContentResolver");
LL.bindClass("android.provider.MediaStore");

//tags
var tagpath="anicon";
var tagid="aniconid";

//global vars
var thisscript=LL.getCurrentScript();
var item=null;
var source="";

//when used startActivityForResult
if(typeof resultCode!='undefined'){
if(!filechosen()) return;
}else{
//when launched from event
item=LL.getEvent().getItem();
source=LL.getEvent().getSource();
}

if(item==null) return; 

if(source=="I_PAUSED"){
stop();
return;
}


//file
var path=item.getTag(tagpath);

if(path==null||source=="MENU_ITEM"){
choosefile();
return;
}









//start token

var gif=Movie.decodeFile(path);//gif movie
if(gif == null){
if(confirm("The gif file couldn't be found. Did you removed it or renamed a parent folder?\n(saved path: '"+path+"')\n Do you want to choose another one?"))choosefile();
return;
}

var t=gif.duration()*Math.random();//the current time of the movie, random start
fps=1000/fps;

var im=item.getImage();
var size=[im.getWidth(),im.getHeight()];//size of the live image

var oldid=item.getTag(tagid);
var id;
do{id=Math.random();}while(id==oldid);
item.setTag(tagid,id);//unique token


//start of the animation loop
update();






function stop(){
item.setTag(tagid,"-1");//stop animation
}





function update(){

if(LL.isPaused()){
//launcher paused
stop();
return;
}
if(id!=item.getTag(tagid)){
//another instance of this script is fired
return;
}

var nim=LL.createImage(size[0],size[1]);

//var nim=i.getImage();
var nc=nim.draw();
nc.scale(nim.getWidth()/gif.width(),nim.getHeight()/gif.height());
gif.setTime(t)
gif.draw(nc,0,0);//draws the corresponding image

nim.update();

item.setImage(nim);


t=(t+fps)%gif.duration();

setTimeout(update,fps);//repeat

}



function choosefile(){
var intent =new Intent();
intent.setComponent(ComponentName.unflattenFromString("net.pierrox.lightning_launcher_extreme/net.pierrox.lightning_launcher.activities.FilePicker"));//file picker activity
intent['putExtra(java.lang.String,java.lang.String[])']("e",["gif"]);//list of extensions to show
if(thisscript.getTag()!=null)intent.putExtra("p",thisscript.getTag());//path where to start

LL.startActivityForResult(intent,thisscript,item.getId());

}


function filechosen(){

if(data==null){
Android.makeNewToast("Cancelled",true).show();
return false
}

var dp=data.getExtra("p");//last path opened
var df=data.getExtra("f");//file chosen

if(dp!=null)thisscript.setTag(data.getExtra("p"));//so next time it will open in the previous path

if(df==null){
Android.makeNewToast("No file picked",true).show();
return false
}

//otherwise gif chosen

item=LL.getItemById(token);

item.setTag(tagpath,df);//saved path
item.setCustomIcon(LL.createImage(df));//this makes the item to have a custom icon related to the animated one

if(confirm("Do you want it to be automatically animated?\n(script in the resumed/paused event)")){
//it make this for you
item.getProperties().edit()
.setEventHandler("i.resumed",EventHandler.RUN_SCRIPT,thisscript.getId())
.setEventHandler("i.paused",EventHandler.RUN_SCRIPT, thisscript.getId())
.commit();

}
return true;
}
</sxh>
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