Check the file type!

[Shulipa Bernad]

Hello everyone! Once I open a document, is there any way to check the file type such as: jpg, tiff, png ...?

Thank you!

[Kukurykus]

activeDocument.name.split(/\./)[1]

or for many dots:

activeDocument.name.match(/[^.]+$/)[0]

[Shulipa Bernad]

It was not quite that! Just an alert type message stating something like this: "This document is a jpg or tiff or png extension file ..." just show me its original format

[Kukurykus]

Then after opening command why don't you put one of proposed line surrounded by appropraite text to alert() ?

[Shulipa Bernad]

Could you show me an example? Please

[Kukurykus]

alert('File extension: ' + open(File(Folder.desktop + '/someFile.jpg')).name.match(/[^.]+$/)[0])

[SuperMerlin · Accepted solution]

#target photoshop;
if(documents.length) alert(fileType());
function fileType(){
var ref = new ActionReference();
ref.putEnumerated( charIDToTypeID("Dcmn"), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") ); 
var desc = executeActionGet(ref);
try{
return desc.getString(stringIDToTypeID("format"));
}catch(e){return "Unsaved File";}
};

[Shulipa Bernad]

Great job SuperMerlin! That's what I'm looking for. Thank you.

Kukurykus thanks for listening.

[Kukurykus]

Doesn't my code do the same, that you wanted?

[Shulipa Bernad]

Hi Kukurykus , sorry for the late reply, the SuperMerlin script works perfectly regardless of where the document originated. yet I am grateful for your help. Thank you.

[Kukurykus]

I ask, because when you use the code in the alert from my very first reply you're getting the same:

alert(activeDocument.name.match(/[^.]+$/)[0])

so regardless of its origin, or what else do you mean by that?

[Shulipa Bernad]

You really are right!

alert (activeDocument.name.match (/ [^.] + $ /) [0])

I confess I did not understand, so I get a lot easier.

Both of these situations worked, to whom do I owe the correct answer credits?

[Kukurykus]

I wanted to understand what you really needed, because I was sure you know how alert can be used, so in the first post I simply didn't use that what seemed to be obvious. You decide who deserves credits

[alexanderl16240166]

Old thread, but replying as this was the top result on google for me, so may prove useful to others. SuperMerlin's script works perfectly but is extremely slow on a larger PSB (4-5s for me). Pulling just the format instead of the whole document descriptor sped it up quite a bit:

function getFileFormatFast () {
    var s2t = stringIDToTypeID, c2t = charIDToTypeID;
    try {
        var ref = new ActionReference();
        // Ask ONLY for the 'format' property of the target document
        ref.putProperty(s2t('property'), s2t('format'));
        ref.putEnumerated(c2t('Dcmn'), s2t('ordinal'), s2t('targetEnum'));

        var desc = executeActionGet(ref);
        return desc.hasKey(s2t('format')) ? desc.getString(s2t('format')) : 'Unsaved File';
    } catch (e) {
        return 'Unsaved File';
    }
}

[D Fosse · Accepted solution]

This was a very strange thread. Why not just look at the title bar? Or turn on visible extensions in the operating system, so you know before even opening the file?

[alexanderl16240166]

Because if I'm scripting something on dozens of files and want it to handle things separately depending on if it's a layered PSD already or not, I don't want to have to tell it every time!

[D Fosse]

OK, got it 🙂

[Glenn 8675309]

 I always tell people to do it however they want, as long as they get an answer, it works for them, or the most important:  You like it.