Add reset mechanism for pseudo filename widgets

src/aiidalab_qe/app/configuration/advanced/pseudos/model.py

@@ -109,6 +109,8 @@ class PseudosConfigurationSettingsModel(
 
     family_help_message = tl.Unicode(PSEUDO_HELP_WO_SOC)
 
+    pseudo_filename_reset_trigger = tl.Int(0)
+
     def update(self, specific=""):  # noqa: ARG002
         with self.hold_trait_notifications():
             if not self.has_structure:
@@ -272,6 +274,7 @@ def reset(self):
             self.family = self._get_default("family")
             self.family_help_message = self._get_default("family_help_message")
             self.status_message = self._get_default("status_message")
+            self.pseudo_filename_reset_trigger += 1
 
     def _get_default(self, trait):
         if trait == "dictionary":

src/aiidalab_qe/app/configuration/advanced/pseudos/pseudos.py

@@ -45,6 +45,10 @@ def __init__(self, model: PseudosConfigurationSettingsModel, **kwargs):
             self._on_family_change,
             "family",
         )
+        self._model.observe(
+            self._on_reset_trigger_change,
+            "pseudo_filename_reset_trigger",
+        )
 
         ipw.dlink(
             (self._model, "cutoffs"),
@@ -219,6 +223,13 @@ def _on_family_change(self, _):
         self._model.update_default_pseudos()
         self._model.update_default_cutoffs()
 
+    def _on_reset_trigger_change(self, _):
+        if not self.rendered:
+            return
+        upload_widget: PseudoUploadWidget
+        for upload_widget in self.setter_widget.children:
+            upload_widget.reset_pseudo_filename_widget()
+
     def _update(self, specific=""):
         if self.updated:
             return
@@ -366,6 +377,9 @@ def render(self):
 
         self.rendered = True
 
+    def reset_pseudo_filename_widget(self):
+        self.pseudo_text.value = self.pseudo.filename if self.pseudo else ""
+
     def _on_file_upload(self, change=None):
         """When file upload button is pressed."""
         filename, item = next(iter(change["new"].items()))