Support ipywidgets 8.x

aiidalab_widgets_base/computational_resources.py

@@ -483,12 +483,16 @@ def _on_setup_ssh_button_pressed(self, _=None):
                 self.message = wrap_message(message, MessageLevel.ERROR)
                 return
 
-            filename = Path(private_key_fname).name
-
-            # if the private key filename is exist, generate random string and append to filename subfix
+            # if the private key filename exists, generate random string and append to filename subfix
             # then override current name.
-            if filename in [str(p.name) for p in Path(self._ssh_folder).iterdir()]:
-                private_key_fpath = self._ssh_folder / f"{filename}-{shortuuid.uuid()}"
+            if private_key_fname in [
+                str(p.name) for p in Path(self._ssh_folder).iterdir()
+            ]:
+                private_key_fpath = (
+                    self._ssh_folder / f"{private_key_fname}-{shortuuid.uuid()}"
+                )
+            else:
+                private_key_fpath = self._ssh_folder / private_key_fname
 
             self._add_private_key(private_key_fpath, private_key_content)
 
@@ -615,10 +619,18 @@ def _on_verification_mode_change(self, change):
     def _private_key(self) -> tuple[str | None, bytes | None]:
         """Unwrap private key file and setting filename and file content."""
         if self._inp_private_key.value:
-            (fname, _value), *_ = self._inp_private_key.value.items()
-            content = copy.copy(_value["content"])
-            self._inp_private_key.value.clear()
-            self._inp_private_key._counter = 0  # pylint: disable=protected-access
+            try:
+                (fname, value), *_ = (
+                    (fname, item["content"])
+                    for fname, item in self._inp_private_key.value.items()
+                )  # ipywidgets 7.x
+                value = value["content"]
+            except AttributeError:
+                (fname, value), *_ = (
+                    (f["name"], f.content.tobytes())
+                    for f in self._inp_private_key.value
+                )  # ipywidgets 8.x
+            content = copy.copy(value)
             return fname, content
         return None, None
 

aiidalab_widgets_base/structures.py

@@ -412,10 +412,20 @@ def _validate_and_fix_ase_cell(self, ase_structure, vacuum_ang=10.0):
 
     def _on_file_upload(self, change=None):
         """When file upload button is pressed."""
-        for fname, item in change["new"].items():
-            self.structure = self._read_structure(fname, item["content"])
-            self.file_upload.value.clear()
-            break
+
+        def get_unified_representation(value):
+            """This function ensures backwards compatibility w.r.t. ipywidgets 7.x"""
+            try:
+                return [
+                    (fname, item["content"]) for fname, item in value.items()
+                ]  # ipywidgets 7.x
+            except AttributeError:
+                return [
+                    (f["name"], f.content.tobytes()) for f in value
+                ]  # ipywidgets 8.x
+
+        fname, item = get_unified_representation(change["new"])[0]
+        self.structure = self._read_structure(fname, item)
 
     def _read_structure(self, fname, content):
         suffix = "".join(pathlib.Path(fname).suffixes)

aiidalab_widgets_base/wizard.py

@@ -102,7 +102,6 @@ def __init__(self, steps, show_header=True, **kwargs):
         # Initialize the accordion with the widgets ...
         self.accordion = ipw.Accordion(children=widgets)
         self._update_titles()
-        ipw.link((self.accordion, "selected_index"), (self, "selected_index"))
 
         # Watch for changes to each step's state
         for widget in widgets:
@@ -148,6 +147,7 @@ def __init__(self, steps, show_header=True, **kwargs):
         self.show_header = show_header
 
         super().__init__(children=[self.header, self.accordion], **kwargs)
+        ipw.link((self.accordion, "selected_index"), (self, "selected_index"))
 
     @property
     def show_header(self):

setup.cfg

@@ -28,8 +28,7 @@ install_requires =
     humanfriendly~=10.0
     ipytree~=0.2
     traitlets~=5.4
-    ipywidgets~=7.7
-    widgetsnbextension<3.6.3
+    ipywidgets>=7,<9
     pymysql~=0.9
     nglview~=3.0
     spglib>=1.14,<3
@@ -51,7 +50,7 @@ dev =
     pytest-timeout~=2.3.0
     selenium~=4.23.0
 optimade =
-    ipyoptimade~=0.1
+    ipyoptimade==1.0.0
 eln =
     aiidalab-eln>=0.1.2,~=0.1
     requests-cache~=1.0