activeLayer returns a layer when no layer is selected

[JojjeS]

Hello,

I'm having a problem with activeLayer, even when i have no layer selected in photoshop it returns my most recently selected layer, how do i know if the user has selected a layer or not?

[Geppetto Luis]

I hope I understand correctly

this script enables last level at the top.

var newLayer = app.activeDocument.artLayers.add();  
newLayer.remove();

[JojjeS]

No that was not quite what i was looking for.

The issue i'm having is that i want to know if the user has selected a layer or not, but activeLayer always returns a layer even if the user has no layer selected.

How do i know if the user has no layer selected?

[r-bin · Accepted solution]

In CC2018 you can use

var r = new ActionReference();
r.putProperty(stringIDToTypeID("property"), stringIDToTypeID("targetLayers"));
r.putEnumerated(stringIDToTypeID("document"), stringIDToTypeID("ordinal"), stringIDToTypeID("targetEnum"));
if (!executeActionGet(r).hasKey(stringIDToTypeID("targetLayers"))) alert("No Layer selected")

[JojjeS]

Thanks, that did show me if the user had any layers selected or not.

Would this be possible in DOM code aswell?

[r-bin]

I think NO.

[r-bin]

By the way, to activate the activeLayer, you can use

try { activeDocument.activeLayer.link(activeDocument.activeLayer) } catch(e) { /*happens when the background is a single layer*/ }