empty selection

[christianbrugeron]

Hi everyone,

How to test if a selection is empty?

If I try to access the bounds, the object does not exist, if I test the selection object it seems fine.

Thanks

Christian

[Chuck Uebele]

You can use a try/catch block with copy to see if it errors"

#target photoshop
var doc = activeDocument;
try{
     doc.selection.copy()
     //code here if there is something in the selection
     }
catch(e){
     //code here for if the selection is empty
     }

[christianbrugeron]

Thank you, but I would have liked a test without the try/catch, which works, I confirm.

cb

[Chuck Uebele · Accepted solution]

There may not be a way to do this without the try/catch block.

[SuperMerlin]

This function is from xbytor.

function hasSelection (doc) { 
if(doc == undefined) doc = activeDocument;
  var res = false; 
  var as = doc.activeHistoryState; 
  doc.selection.deselect(); 
  if (as != doc.activeHistoryState) { 
    res = true; 
    doc.activeHistoryState = as; 
  } 
  return res; 
};

[JJMack]

If the object that may or may not exists it one its own layer you could test that layer bounds to see if it empty,  I wrote script and tested the layers boundry of an empty layer not a selection  bounds for a selection on an enpty will have a bounds but the lauyer's bound seems to be all zeros.