Is there any way to get active layer comp in JSX?

[olivu1568674]

I want go get currently active layer comp.

Is there any way to that?

[SuperMerlin]

This will give the first selected Layer Comp, it does not check if more than one comp is selected!

#target photoshop;
main();
function main(){
var sourceDoc = app.activeDocument;
for( var c = 0; c < sourceDoc.layerComps.length; c++ ){
     if( sourceDoc.layerComps.selected == true ){
         // do whatever get name etc.
         alert(sourceDoc.layerComps.name + " is selected");
         return;
         }}
     alert("No layer comp selected");
};

[Jarda Bereza]

Selected layer comp is not active layer comp.

Activation has its own state button.

I tried to solve this and only thing that worked for me was getting data via generator plugin.

[r-bin · Accepted solution]

Probably so. Works in CC2018 (verified)

aaa()

function aaa()
    {
    try
        {
        var r = new ActionReference();
        r.putProperty( charIDToTypeID( "Prpr" ), stringIDToTypeID( "json" ) );
        r.putEnumerated( charIDToTypeID("Dcmn"), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") );

        var ret = executeActionGet(r); 

        var json = ret.getString(stringIDToTypeID("json"));

        eval("var obj= " + json);

        var ok = false;

        for (var i = 0; i < obj.comps.length; i++)
            {
            if (obj.comps[i].applied)
                 {
                 var idx = get_comp_idx(obj.comps[i].id);

                 alert ( obj.comps[i].name + "\n\n" + "index: " + (idx-1) + "\n\n" + "id:" + obj.comps[i].id + "\n\n" +
                        "app.activeDocument.layerComps["+(idx-1)+"].name = " + app.activeDocument.layerComps[idx-1].name, "Applied comp");

                 ok = true;
                 break;
                 }
            }

        if (!ok) alert ("No applied comp found");

        function get_comp_idx(id)
            {
            try
                {
                var r = new ActionReference();
                r.putProperty( charIDToTypeID( "Prpr" ), stringIDToTypeID("compsList"));
                r.putEnumerated( charIDToTypeID("Dcmn"), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") );
   
                var comps = executeActionGet(r).getList(stringIDToTypeID("compsList")); 

                for (var i = 0; i < comps.count; i++)
                    if (comps.getObjectValue(i).getInteger(stringIDToTypeID("ID")) == id)
                        return comps.getObjectValue(i).getInteger(stringIDToTypeID("itemIndex"));
       
                return -1;
                }
            catch (e) { alert(e); }
            }

        }
    catch (e) { alert(e)  }
    }

[Jarda Bereza]

This is interesting. I thought that JSON property returns all properties accessible with document reference without property. But this is exactly same content as from Generator plugin 🙂

[Pixelsplasher]

Thank you, r-bin! I've been figuring this problem out all day.

LayerComp only has the "selected" property. There is no property for an active or applied layer comp. A selected layer comp does not mean that it is the active layer comp. There can even be several selected layer comps and the active one may not even be selected.

I have simplified your code and it works in Adobe Photoshop 2020, too:

var doc = activeDocument;

function getActiveLayerComp(){
	var r = new ActionReference();
	r.putProperty( charIDToTypeID( "Prpr" ), stringIDToTypeID( "json" ) );
	r.putEnumerated( charIDToTypeID( "Dcmn" ), charIDToTypeID( "Ordn" ), charIDToTypeID( "Trgt" ) );
	
	var ret = executeActionGet( r );  
	var json = ret.getString( stringIDToTypeID( "json" ) );
    eval( "var obj= " + json );
	
	for ( i = 0; i < doc.layerComps.length; i++ ){
		var compRef = doc.layerComps[ i ];
		if( obj.comps[ i ].applied )
			return compRef;
	}
}