Adobe AfterEffects Script (JSX): Isolate selected Layers

Isolate_selected_layers_v20150721.jsx

/*
Adobe AfterEffects Script (JSX)
	Isolate selected Layers v20150721
	
//1:Push "Isolate"button,shy unselected layers and isolate selected layers.
//2:Push "End Isolate"button, return shy.

//changelog
*/

////////////////////////////////variable declaration////////////////////////////////
var thisComp,selectedLays,unselectedLays,tmpLays,checkFlg;
var thisLayer = null;
var temp = null;
var dlg,w,btnSelShy;
var btnSelShyMode = 0;


////////////////////////////////body////////////////////////////////

dlg = new showDialog;
        
////////////////////////////////functions////////////////////////////////
// 01:create palette
function showDialog()
{
	w = new Window("palette","Isolate",undefined,{resizeable:true,orientation:"row"});
	w.center();
	btnSelShy = w.add("button",[10,70,180,106],"Isolate");
	btnSelShy.onClick = function (){
		btnSelShyMode = toggle(btnSelShyMode);
		if (btnSelShyMode){
			thisComp = app.project.activeItem;
			if(thisComp instanceof CompItem){
				pickSelectedLays ();
				if(selectedLays.length > 0){
					pickUnselctedLays ();
					changeShyMode(selectedLays,false);
					changeShyMode(unselectedLays,true);
					btnSelShy.text = "End Isolate";
				};
			};
		}else{
			changeShyMode(selectedLays,undefined);
			changeShyMode(unselectedLays,undefined);
			selectedLays= null;
			unselectedLays= null;
			btnSelShy.text = "Isolate";
		};
	};
	if(w.show()<2){w.show()};
};
// 02:toggle (true/false)
function toggle (value){
	if(value == 1){return 0}else{return 1};
};
//03:collect selected Layers
function pickSelectedLays (){
	tmpLays = null;
	tmpLays = thisComp.selectedLayers;
	selectedLays= new Array();
	if(tmpLays.length > 0){
		for (i = 0; i < tmpLays.length;i ++){
			selectedLays.push([tmpLays[i],tmpLays[i].shy]);
		};
	};
};
//04:collect unselected Layers
function pickUnselctedLays (){
	tmpLays = null;
	tmpLays = thisComp.layers;
	unselectedLays = new Array();
	for (i = 1; i <= tmpLays.length; i++){
		checkFlg = 0;
		for (j = 0; j < selectedLays.length;j ++){
			if (tmpLays[i] == selectedLays[j][0]){
				checkFlg = toggle (checkFlg);
			};
		};
		if (checkFlg == 0){
			unselectedLays.push([tmpLays[i],tmpLays[i].shy]);
		};
	};
};
//04:changeShyMode
function changeShyMode(Lays,mode){
	if (mode == undefined){
		for (i = 0; i < Lays.length; i++){
			Lays[i][0].shy = Lays[i][1];
		};
	}else{
		for (i = 0; i < Lays.length; i++){
			Lays[i][0].shy = mode;
		};
	};
};