fix: don't change folder when new folder is parent of root.

sepal_ui/sepalwidgets/inputs.py

@@ -52,7 +52,6 @@
     reason="Empty v_model will be treated as empty string: :code:`v_model=''`.",
 )
 class DatePicker(v.Layout, SepalWidget):
-
     menu: Optional[v.Menu] = None
     "the menu widget to display the datepicker"
 
@@ -178,13 +177,15 @@ def is_valid_date(date: str) -> bool:
 
 
 class FileInput(v.Flex, SepalWidget):
-
     extensions: List[str] = []
     "list: the extensions list"
 
     folder: Path = Path.home()
     "the current folder"
 
+    initial_folder: Path = Path.home()
+    "the starting point of the file input"
+
     file: t.Unicode = t.Unicode("").tag(sync=True)
     "the current file"
 
@@ -223,6 +224,7 @@ def __init__(
         v_model: str = "",
         clearable: bool = False,
         root: Union[str, Path] = "",
+        cache=False,
         **kwargs,
     ) -> None:
         """Custom input field to select a file in the sepal folders.
@@ -237,8 +239,10 @@ def __init__(
             kwargs: any parameter from a v.Flex abject. If set, 'children' will be overwritten.
         """
         self.extensions = extensions
+        self.initial_folder = folder
         self.folder = Path(folder)
         self.root = str(root) if isinstance(root, Path) else root
+        self.cache_dirs = {}
 
         self.selected_file = v.TextField(
             readonly=True,
@@ -330,9 +334,8 @@ def reset(self, *args) -> Self:
         # do nothing if nothing is set to avoids extremely long waiting
         # time when multiple fileInput are reset at the same time as in the aoiView
         if self.v_model is not None:
-
             # move to root
-            self._on_file_select({"new": Path.home()})
+            self._on_file_select({"new": self.initial_folder})
 
             # remove v_model
             self.v_model = ""
@@ -369,7 +372,10 @@ def _on_file_select(self, change: dict) -> Self:
 
         if new_value.is_dir():
             self.folder = new_value
-            self._change_folder()
+
+            # don't change folder if the folder is the parent of the root
+            if not self.folder == Path(self.root).parent:
+                self._change_folder()
 
         elif new_value.is_file():
             self.file = str(new_value)
@@ -406,11 +412,14 @@ def _get_items(self) -> List[v.ListItem]:
                 el for el in list_dir if el.is_dir() or el.suffix in self.extensions
             ]
 
+        if folder in self.cache_dirs:
+            if self.cache_dirs[folder]["files"] == list_dir:
+                return self.cache_dirs[folder]["items"]
+
         folder_list = []
         file_list = []
 
         for el in list_dir:
-
             if el.is_dir():
                 icon = self.ICON_STYLE[""]["icon"]
                 color = self.ICON_STYLE[""]["color"][v.theme.dark]
@@ -439,10 +448,7 @@ def _get_items(self) -> List[v.ListItem]:
 
         folder_list = humansorted(folder_list, key=lambda x: x.value)
         file_list = humansorted(file_list, key=lambda x: x.value)
-        folder_list.extend(file_list)
 
-        # add the parent item if root is set and is not reached yet
-        # if root is not set then we always display it
         parent_item = v.ListItem(
             value=str(folder.parent),
             children=[
@@ -459,16 +465,17 @@ def _get_items(self) -> List[v.ListItem]:
                 ),
             ],
         )
-        root_folder = Path(self.root)
-        if self.root == "":
-            folder_list.insert(0, parent_item)
-        elif root_folder in folder.parents:
-            folder_list.insert(0, parent_item)
+
+        folder_list.extend(file_list)
+        folder_list.insert(0, parent_item)
+
+        self.cache_dirs.setdefault(folder, {})
+        self.cache_dirs[folder]["files"] = list_dir
+        self.cache_dirs[folder]["items"] = folder_list
 
         return folder_list
 
     def _on_reload(self, *args) -> None:
-
         # force the update of the current folder
         self._change_folder()
 
@@ -484,7 +491,6 @@ def close_menu(self, change: dict) -> None:
 
 
 class LoadTableField(v.Col, SepalWidget):
-
     fileInput: Optional[FileInput] = None
     "The file input to select the .csv or .txt file"
 
@@ -638,7 +644,6 @@ def _set_v_model(self, key: str, value: Any) -> None:
 
 
 class AssetSelect(v.Combobox, SepalWidget):
-
     TYPES: dict = {
         "IMAGE": ms.widgets.asset_select.types[0],
         "TABLE": ms.widgets.asset_select.types[1],
@@ -723,7 +728,6 @@ def _validate(self, change: dict) -> None:
             self.v_model = self.v_model.strip()
 
         if change["new"]:
-
             # check that the asset can be accessed
             try:
                 self.asset_info = ee.data.getAsset(self.v_model)
@@ -735,7 +739,6 @@ def _validate(self, change: dict) -> None:
                     )
 
             except Exception:
-
                 self.error_messages = ms.widgets.asset_select.no_access
 
             self.valid = self.error_messages is None
@@ -745,13 +748,11 @@ def _validate(self, change: dict) -> None:
 
     @sd.switch("loading", "disabled")
     def _get_items(self, *args) -> Self:
-
         # init the item list
         items = []
 
         # add the default values if needed
         if self.default_asset:
-
             if isinstance(self.default_asset, str):
                 self.default_asset = [self.default_asset]
 
@@ -828,7 +829,6 @@ def _toggle_pwd(self, *args) -> None:
 
 
 class NumberField(v.TextField, SepalWidget):
-
     max_: t.Int = t.Int(10).tag(sync=True)
     "Maximum selectable number."
 
@@ -879,7 +879,6 @@ def decrement(self, *args) -> None:
 
 
 class VectorField(v.Col, SepalWidget):
-
     original_gdf: Optional[gpd.GeoDataFrame] = None
     "The originally selected dataframe"
 

tests/test_sepalwidgets/test_FileInput.py

@@ -3,7 +3,6 @@
 from pathlib import Path
 from typing import List
 
-import ipyvuetify as v
 import pytest
 from traitlets import Any
 
@@ -170,9 +169,18 @@ def test_root(file_input: sw.FileInput, root_dir: Path) -> None:
     # set the root to the current folder and reload
     file_input.root = str(root_dir)
     file_input._on_reload()
-    first_title_item = file_input.get_children(klass=v.ListItemTitle)[0]
 
-    assert ".. /" not in first_title_item.children[0]
+    current_items = file_input.file_list
+
+    # Try to go to the parent root folder
+    root_parent = Path(file_input.root).parent
+
+    file_input._on_file_select({"new": root_parent})
+
+    new_items = file_input.file_list
+
+    # Assert that trying to go to the parent root folder does not work
+    assert current_items == new_items
 
     return