Is there a selected layer or not?

[oliverIntergrafika]

Hi all,

I need a little function which is telling me if there is a selected layer or not. Now I always get back the active layer even if it isn't selected with this AM Code:

getSelectedLayerId: function()
{
  var ref = new ActionReference();
  ref.putEnumerated( charIDToTypeID('Lyr '),charIDToTypeID('Ordn'),charIDToTypeID('Trgt') ); 
  return executeActionGet(ref).getInteger(stringIDToTypeID( "layerID" ));
},

Thank You in advance!

[SuperMerlin · Accepted solution]

I believe this has been fixed in the latest version of Photoshop, but I dont't have it so not sure.

Up to the latest you could use the following code as it checks to see if a single layer is selected by checking the layers visibility.

function getSelectedLayersIdx(){ 
      var selectedLayers = new Array(); 
      var backGroundCounter = 1;
            if(activeDocument.artLayers.length > 0){
            backGroundCounter = activeDocument.artLayers[activeDocument.artLayers.length - 1].isBackgroundLayer ? 0 : 1;
            }
      var ref = new ActionReference(); 
      ref.putProperty(charIDToTypeID("Prpr"), stringIDToTypeID("targetLayers"));
      ref.putEnumerated( charIDToTypeID("Dcmn"), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") ); 
      var desc = executeActionGet(ref); 
      if( desc.hasKey( stringIDToTypeID( "targetLayers" ) ) ){ 
         desc = desc.getList( stringIDToTypeID( "targetLayers" )); 
          var c = desc.count; 
          var selectedLayers = new Array(); 
          for(var i=0;i<c;i++){ 
               selectedLayers.push(  desc.getReference( i ).getIndex() +backGroundCounter ); 
          } 
      if(app.version.match(/^\d+/) > 15) return selectedLayers ;
       }else{ 
           if(app.version.match(/^\d+/) > 15) return selectedLayers ;
         var ref = new ActionReference(); 
         ref.putProperty( charIDToTypeID("Prpr") , charIDToTypeID( "ItmI" )); 
         ref.putEnumerated( charIDToTypeID("Lyr "), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") ); 
         if(!backGroundCounter){
            selectedLayers.push( executeActionGet(ref).getInteger(charIDToTypeID( "ItmI" )) -1);
            }else{
                selectedLayers.push( executeActionGet(ref).getInteger(charIDToTypeID( "ItmI" )));
                }
     var vis = app.activeDocument.activeLayer.visible;
        if(vis == true) app.activeDocument.activeLayer.visible = false;
        var desc9 = new ActionDescriptor();
    var list9 = new ActionList();
    var ref9 = new ActionReference();
    ref9.putEnumerated( charIDToTypeID("Lyr "), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") );
    list9.putReference( ref9 );
    desc9.putList( charIDToTypeID("null"), list9 );
    executeAction( charIDToTypeID("Shw "), desc9, DialogModes.NO );
    if(app.activeDocument.activeLayer.visible == false) selectedLayers.shift();
        app.activeDocument.activeLayer.visible = vis;
      } 
      return selectedLayers; 
};

[oliverIntergrafika]

Thank You SuperMerlin! It is working well.

[Davide_Barranca]

SuperMerlin , it hasn't been fixed (at least not until CC 2017) – if you try with basic DOM code such as

app.activeDocument.activeLayer

it keeps pointing to a layer even if none is active.

Davide