Photoshop script select all layers with same name as current layer

[jack284003085p35]

I need a photoshop script that selects all layers with the same name as the currently selected layer. The following code does the job:

// based on code by paul riggott and mike hale;

// 2013, use it at your own risk;

if (app.documents.length > 0) {

activeDocument.suspendHistory('stuff', 'main()');

function main(){

if(!documents.length) return;

var myDoc = app.activeDocument;

var theName = myDoc.activeLayer.name;

var theResults = new Array;

selectAllLayers();

var selectedLayers = getSelectedLayersIdx();

for(var a = 0; a < selectedLayers.length; a++){

var thisName = layerName(Number(selectedLayers[a]));

if (thisName == theName) {

          theResults.push(Number(selectedLayers[a]))

          };

};

selectLayerByIndex(theResults[0], false);

for (var m = 1; m < theResults.length; m++) {

selectLayerByIndex(theResults[m], true);

};

}

};

function getSelectedLayersIdx(){

           var selectedLayers = new Array;

           var ref = new ActionReference();

           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++){

                               try{

                                         activeDocument.backgroundLayer;

                                         selectedLayers.push(  desc.getReference( i ).getIndex() );

                               }catch(e){

                                         selectedLayers.push(  desc.getReference( i ).getIndex()+1 );

                               }

                      }

            }else{

                     var ref = new ActionReference();

                     ref.putProperty( charIDToTypeID("Prpr") , charIDToTypeID( "ItmI" ));

                     ref.putEnumerated( charIDToTypeID("Lyr "), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") );

                     try{

                               activeDocument.backgroundLayer;

                               selectedLayers.push( executeActionGet(ref).getInteger(charIDToTypeID( "ItmI" ))-1);

                     }catch(e){

                               selectedLayers.push( executeActionGet(ref).getInteger(charIDToTypeID( "ItmI" )));

                     }

           }

           return selectedLayers;

};

function selectAllLayers() {

var desc29 = new ActionDescriptor();

          var ref23 = new ActionReference();

          ref23.putEnumerated( charIDToTypeID('Lyr '), charIDToTypeID('Ordn'), charIDToTypeID('Trgt') );

desc29.putReference( charIDToTypeID('null'), ref23 );

executeAction( stringIDToTypeID('selectAllLayers'), desc29, DialogModes.NO );

};

function layerName(idx){

var ref = new ActionReference();

ref.putIndex( charIDToTypeID( "Lyr " ), idx);

var desc = executeActionGet(ref);

return desc.getString(stringIDToTypeID("name"));

};

function selectLayerByIndex(index,add){

add = undefined ? add = false:add

var ref = new ActionReference();

    ref.putIndex(charIDToTypeID("Lyr "), index);

    var desc = new ActionDescriptor();

    desc.putReference(charIDToTypeID("null"), ref );

       if(add) desc.putEnumerated( stringIDToTypeID( "selectionModifier" ), stringIDToTypeID( "selectionModifierType" ), stringIDToTypeID( "addToSelection" ) );

      desc.putBoolean( charIDToTypeID( "MkVs" ), false );

   try{

    executeAction(charIDToTypeID("slct"), desc, DialogModes.NO );

}catch(e){

alert(e.message);

}

};

 BUT, there is one problem, my files have a ton of layers and so it appears that this code must iterate through them all, as such each time i need to run this script it takes 7minutes to execute. Is there a way to optimize this such that it will be faster even in files with VERY HIGH layer counts? Thanks

[c.pfaffenbichler · Accepted solution]

Is this faster? 

// 2023, use it at your own risk;
if (app.documents.length > 0) {
    var thisName = activeDocument.activeLayer.name;
    var theLayers = collectLayersByName(thisName);
    alert (theLayers.length+" layers of the name »"+thisName+"«\n\n"+theLayers.join("\n"))
    };
////// collect layers with certain name //////
function collectLayersByName (aName) {
// get number of layers;
    var ref = new ActionReference();
    ref.putProperty(stringIDToTypeID('property'), stringIDToTypeID('numberOfLayers'));
    ref.putEnumerated( charIDToTypeID("Dcmn"), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") ); 
    var applicationDesc = executeActionGet(ref);
    var theNumber = applicationDesc.getInteger(stringIDToTypeID("numberOfLayers"));
// process the layers;
    var theLayers = new Array;
    for (var m = 0; m <= theNumber; m++) {
    try {
    var ref = new ActionReference();
    ref.putIndex( charIDToTypeID( "Lyr " ), m);
    var layerDesc = executeActionGet(ref);
    var layerSet = typeIDToStringID(layerDesc.getEnumerationValue(stringIDToTypeID("layerSection")));
//    var isBackground = layerDesc.getBoolean(stringIDToTypeID("background"));
// if group collect values;
    if (layerSet != "layerSectionEnd" /*&& layerSet != "layerSectionStart" && isBackground != true*/) {
    var theName = layerDesc.getString(stringIDToTypeID('name'));
    var theID = layerDesc.getInteger(stringIDToTypeID('layerID'));
    if (theName == aName) {
        theLayers.push([theName, theID]);
        selectLayerByID(theID, true)
    }
    };
    }
    catch (e) {};
    };
    return theLayers
    };
// based on code by mike hale, via paul riggott;
function selectLayerByID(id,add){ 
    add = undefined ? add = false:add 
    var ref = new ActionReference();
        ref.putIdentifier(charIDToTypeID("Lyr "), id);
        var desc = new ActionDescriptor();
        desc.putReference(charIDToTypeID("null"), ref );
           if(add) desc.putEnumerated( stringIDToTypeID( "selectionModifier" ), stringIDToTypeID( "selectionModifierType" ), stringIDToTypeID( "addToSelection" ) ); 
          desc.putBoolean( charIDToTypeID( "MkVs" ), false ); 
       try{
        executeAction(charIDToTypeID("slct"), desc, DialogModes.NO );
    }catch(e){
    alert(e.message); 
    }
    };