how to get the placed layer details

[Mahesh12]

i have psd file in that one of the layer i have attached placed which is .png file
how to get those details

 here in the above screenshot first layer contains the placed layer , when i double click one png file will open.
so how get that png file details, like width,height,name and image data.
and that placed layer details where they will save meaning in which block they will save the placed layer data.
thank you

[Stephen_A_Marsh]

Continued from this post:

https://community.adobe.com/t5/photoshop-ecosystem-discussions/how-to-get-the-smart-object-details/m...

[Stephen_A_Marsh]

@Mahesh12 

To edit/open a Photoshop-compatible raster Smart Object layer/file (assumed as placed or embedded):

if (app.activeDocument.activeLayer.kind == LayerKind.SMARTOBJECT) {
    app.runMenuItem(stringIDToTypeID('placedLayerEditContents'));
}

You can then use the document class properties:

https://theiviaxx.github.io/photoshop-docs/Photoshop/Document.html

alert("Doc width: " + app.activeDocument.width);

// or

alert("Doc width: " + app.activeDocument.width.value);

// or

var savedRuler = app.preferences.rulerUnits;
app.preferences.rulerUnits = Units.PIXELS;
alert("Doc height: " + app.activeDocument.height.value);
app.preferences.rulerUnits = savedRuler;

// or

alert("Doc height: " + app.activeDocument.height.as('px'));

I believe that the code from @c.pfaffenbichler directly retrieved the properties of the SO without opening it.

[Stephen_A_Marsh]

Document properties code example:

https://github.com/MarshySwamp/Photoshop-Document-Dimensions---MP-Value---Aspect-Ratio/blob/main/Pho...

Layer properties code example:

https://gist.github.com/MarshySwamp/ef345ef3dec60a843465347ee6fcae2f

[c.pfaffenbichler]

»here in the above screenshot first layer contains the placed layer , when i double click one png file will open.
so how get that png file details, like width,height,name and image data.«

What do you mean by »image data«? 

// based on code by michael l hale;
// 2024, use it at your own risk;
#target photoshop
if (app.documents.length > 0) {
var ref = new ActionReference();
ref.putEnumerated( charIDToTypeID("Lyr "), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") ); 
var layerDesc = executeActionGet(ref);
var soDesc = layerDesc.getObjectValue(stringIDToTypeID('smartObject'));
var soMoreDesc = layerDesc.getObjectValue(stringIDToTypeID('smartObjectMore'));
checkDesc2 (soMoreDesc.getObjectValue(stringIDToTypeID("size")));
};
////// based on code by michael l hale //////
function checkDesc2 (theDesc) {
var c = theDesc.count;
var str = '';
for(var i=0;i<c;i++){ //enumerate descriptor's keys
	str = str + 'Key '+i+' = '+typeIDToStringID(theDesc.getKey(i))+': '+theDesc.getType(theDesc.getKey(i))+'\n'+getValues (theDesc, i)+'\n';
	};
alert("desc\n\n"+str);
};
////// check //////
function getValues (theDesc, theNumber) {
switch (theDesc.getType(theDesc.getKey(theNumber))) {
case DescValueType.ALIASTYPE:
return theDesc.getPath(theDesc.getKey(theNumber));
break;
case DescValueType.BOOLEANTYPE:
return theDesc.getBoolean(theDesc.getKey(theNumber));
break;
case DescValueType.CLASSTYPE:
return theDesc.getClass(theDesc.getKey(theNumber));
break;
case DescValueType.DOUBLETYPE:
return theDesc.getDouble(theDesc.getKey(theNumber));
break;
case DescValueType.ENUMERATEDTYPE:
return (typeIDToStringID(theDesc.getEnumerationValue(theDesc.getKey(theNumber)))+"_"+typeIDToStringID(theDesc.getEnumerationType(theDesc.getKey(theNumber))));
break;
case DescValueType.INTEGERTYPE:
return theDesc.getInteger(theDesc.getKey(theNumber));
break;
case DescValueType.LISTTYPE:
return theDesc.getList(theDesc.getKey(theNumber));
break;
case DescValueType.OBJECTTYPE:
return (theDesc.getObjectValue(theDesc.getKey(theNumber))+"_"+typeIDToStringID(theDesc.getObjectType(theDesc.getKey(theNumber))));
break;
case DescValueType.REFERENCETYPE:
return theDesc.getReference(theDesc.getKey(theNumber));
break;
case DescValueType.STRINGTYPE:
return theDesc.getString(theDesc.getKey(theNumber));
break;
case DescValueType.UNITDOUBLE:
return (theDesc.getUnitDoubleValue(theDesc.getKey(theNumber))+"_"+typeIDToStringID(theDesc.getUnitDoubleType(theDesc.getKey(theNumber))));
break;
default: 
break;
};
};

[Mahesh12]

thanks @c.pfaffenbichler  

[c.pfaffenbichler]

As for the name: 

// based on code by michael l hale;
// 2024, use it at your own risk;
#target photoshop
if (app.documents.length > 0) {
var ref = new ActionReference();
ref.putEnumerated( charIDToTypeID("Lyr "), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") ); 
var layerDesc = executeActionGet(ref);
var soDesc = layerDesc.getObjectValue(stringIDToTypeID('smartObject'));
alert (soDesc.getString(stringIDToTypeID('fileReference')));
};

[Mahesh12]

@c.pfaffenbichler  thanks i'll  check this.

in the above screenshot  the placed layer details where it is saved.

for example in th second screenshot i have provided .  when i double click one jpeg file will open.and that jpeg file contains path.

the  third image is the path that jpeg file contains.
how to retrieve this path point and in the photoshop file format structure where that placed layer path point details are stored.

[c.pfaffenbichler]

I doubt that this is possible with ESTK Scripting without opening the Smart Object. 

[Mahesh12]

hi @c.pfaffenbichler  in photoshop file format in which section that placed layer data is saved.

[c.pfaffenbichler]

No idea. 

If you want to read the file data itself make sure the file is actually saved while »plain« ESTK Scripting will reflect the changes in open but unsaved images. 

[Stephen_A_Marsh]

@Mahesh12 

Your “Photoshop file structure" screenshot would appear to be something related to SDK or perhaps another non-scripting resource. I previously linked to one source of documentation on scripting DOM for an open document.

[Mahesh12]

@Stephen_A_Marsh  yes i just want know about that where exactly the placed layer path point details are saved according to that file structure

[Stephen_A_Marsh]

What are you planning on doing, a binary read of the PSD?

https://www.adobe.com/devnet-apps/photoshop/fileformatashtml/

https://www.fileformat.info/format/psd/egff.htm

[Mahesh12]

yes @Stephen_A_Marsh