Layer Set Groups

[Paul MR]

Photoshop CS4 or better

This script will allow you to save selected layers so that they may be recalled/selected
You can have as many sets as you like.
Removal of set is supported.
Layers can be moved and they will still be selected if part of a set.
All the information is held within the documents metadata.

[Jeremy Knudsen]

Interesting usage of per layer XMP metadata. I did find a minor bug when you define a Preset that contains the Background layer having been selected. When using the Preset it doesn't set the selection of the background layer (an alert pops up saying the layer is not found--at least the background layer exception is handled).

[Paul MR]

Nice catch, to fix that problem change line 148

from:

Code: Select all

if(result != true){

to

Code: Select all

if(result > 0){

[Jeremy Knudsen]

Hi Paul,

I think I found one more bug in your code.

If the layer in the layer set is not found, instead of returning true...

Code: Select all

function getLayerItemIndexByLayerID(id) {
    var ref = new ActionReference();
    ref.putProperty( charIDToTypeID("Prpr") , charIDToTypeID( "ItmI" ));
    ref.putIdentifier( charIDToTypeID( "Lyr " ), id );
   try{
    return executeActionGet(ref).getInteger(charIDToTypeID( "ItmI" ));
   }catch(e){return true;}
};


...I think you want to return false:

Code: Select all

function getLayerItemIndexByLayerID(id) {
    var ref = new ActionReference();
    ref.putProperty( charIDToTypeID("Prpr") , charIDToTypeID( "ItmI" ));
    ref.putIdentifier( charIDToTypeID( "Lyr " ), id );
   try{
    return executeActionGet(ref).getInteger(charIDToTypeID( "ItmI" ));
   }catch(e){return false;}
};


This way, the selLayer method that calls the method above will display the 'Layer does not exist' message:

Code: Select all

function selLayer(layerID,add) {
var result = getLayerItemIndexByLayerID(layerID);
if (result > 0) {
    try{
        activeDocument.backgroundLayer;
        var bkGround = 1;
    } catch(e) {var bkGround = 0;}
        selectLayerByIndex(result - bkGround ,add);
   } else {
        alert("Layer does not exist");      
    }
};