Multiple linked smart object layers selected and update all of them to a new linked source, whether or not they all share the same original linked source? I have added my vote. Until such a thing exists, I'll put up a script to do so.
Try this script, it will relink multiple selected linked and embedded SO layers to linked (further code would need to be added to only replace linked SO layers):
/*
Relink Multiple Selected Smart Object Layers.jsx
v1.0, 14th October 2022, Stephen Marsh
https://community.adobe.com/t5/photoshop-ecosystem-ideas/relink-multiple-layers/idi-p/14155577
*/
#target photoshop
function main() {
// Capture the initial layer visibility and layer selection
var currentLayersState = getLayersVisiblity();
// Replacement file selection
var selectFile = File.openDialog("Please select the replacement linked smart object file:");
///// Process selected layers - from jazz-y /////
var s2t = stringIDToTypeID;
(r = new ActionReference()).putProperty(s2t('property'), p = s2t('targetLayersIDs'));
r.putEnumerated(s2t('document'), s2t('ordinal'), s2t('targetEnum'));
var lrs = executeActionGet(r).getList(p),
sel = new ActionReference();
// Loop over the selected layers
for (var i = 0; i < lrs.count; i++) {
sel.putIdentifier(s2t('layer'), p = lrs.getReference(i).getIdentifier(s2t('layerID')));
(r = new ActionReference()).putIdentifier(s2t('layer'), p);
(d = new ActionDescriptor()).putReference(s2t("target"), r);
executeAction(s2t('select'), d, DialogModes.NO);
// Replace the smart object
if (activeDocument.activeLayer.kind === LayerKind.SMARTOBJECT) {
function s2t(s) {
return app.stringIDToTypeID(s);
}
var descriptor = new ActionDescriptor();
descriptor.putPath(s2t("null"), new File(selectFile));
executeAction(s2t("placedLayerRelinkToFile"), descriptor, DialogModes.NO);
}
}
// Restore the initial layer visibility and selection
setLayersVisiblity(currentLayersState);
}
app.activeDocument.suspendHistory("Relink Multiple Selected Smart Object Layers", "main()");
//// Functions - from jazz-y ////
function getLayersVisiblity() {
var s2t = stringIDToTypeID,
t2s = typeIDToStringID;
(r = new ActionReference()).putProperty(s2t('property'), p = s2t('targetLayersIDs'));
r.putEnumerated(s2t('document'), s2t('ordinal'), s2t('targetEnum'));
var targetLayers = executeActionGet(r).getList(p),
seletion = [],
visiblity = {};
for (var i = 0; i < targetLayers.count; i++) seletion.push(targetLayers.getReference(i).getIdentifier());
(r = new ActionReference()).putProperty(s2t('property'), p = s2t('numberOfLayers'));
r.putEnumerated(s2t('document'), s2t('ordinal'), s2t('targetEnum'));
var len = executeActionGet(r).getInteger(p);
for (var i = 1; i <= len; i++) {
(r = new ActionReference()).putProperty(s2t('property'), p = s2t('layerSection'));
r.putIndex(s2t('layer'), i);
if (t2s(executeActionGet(r).getEnumerationValue(p)) == 'layerSectionEnd') continue;
(r = new ActionReference()).putProperty(s2t('property'), p = s2t('layerID'));
r.putIndex(s2t('layer'), i);
var id = executeActionGet(r).getInteger(p);
(r = new ActionReference()).putProperty(s2t('property'), p = s2t('visible'));
r.putIndex(s2t('layer'), i);
var visible = executeActionGet(r).getBoolean(p);
visiblity[id] = visible;
}
return {
selection: seletion,
visiblity: visiblity
};
}
function setLayersVisiblity(layersStateObject) {
var s2t = stringIDToTypeID;
for (var a in layersStateObject.visiblity) {
makeVisible = layersStateObject.visiblity[a] ? "show" : "hide";
(r = new ActionReference()).putIdentifier(s2t('layer'), a);
(d = new ActionDescriptor()).putReference(s2t('target'), r);
executeAction(s2t(makeVisible), d, DialogModes.NO);
}
if (layersStateObject.selection.length) {
var r = new ActionReference();
for (var i = 0; i < layersStateObject.selection.length; i++)
r.putIdentifier(s2t("layer"), layersStateObject.selection[i]);
(d = new ActionDescriptor()).putReference(s2t("target"), r);
d.putBoolean(s2t("makeVisible"), false);
executeAction(s2t("select"), d, DialogModes.NO);
} else {
(r = new ActionReference()).putEnumerated(s2t("layer"), s2t('ordinal'), s2t('targetEnum'));
(d = new ActionDescriptor()).putReference(s2t('target'), r);
executeAction(s2t('selectNoLayers'), d, DialogModes.NO);
}
}
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