Auto-expand subdirectories (#110)

### nova-trame, 0.22.0

* DataSelector queries subdirectories on demand, which should improve performance for large directory trees (thanks to John Duggan).

### nova-trame, 0.21.0

* ProgressBar component now displays detailed job status (thanks to Sergey Yakubov).

[tool.poetry]

name = "nova-trame"

version = "0.21.0"

version = "0.22.0"

description = "A Python Package for injecting curated themes and custom components into Trame applications"

authors = ["Duggan, John <dugganjw@ornl.gov>"]

readme = "README.md"

import os

from pathlib import Path

from typing import Any, List, Optional

from typing import Any, Dict, List, Optional

from warnings import warn

from natsort import natsorted

        return natsorted(experiments)

    def sort_directories(self, directories: List[Any]) -> List[Any]:

    def sort_directories(self, directories: List[Dict[str, Any]]) -> List[Dict[str, Any]]:

        # Sort the current level of dictionaries

        sorted_dirs = natsorted(directories, key=lambda x: x["title"])

        return Path(self.state.custom_directory)

    def get_directories(self) -> List[str]:

    def get_directories(self, base_path: Optional[Path] = None) -> List[Dict[str, Any]]:

        using_custom_directory = self.state.facility == CUSTOM_DIRECTORIES_LABEL

        if using_custom_directory:

        if base_path:

            pass

        elif using_custom_directory:

            base_path = self.get_custom_directory_path()

        else:

            base_path = self.get_experiment_directory_path()

        directories = []

        try:

            if using_custom_directory:

                for entry in os.listdir(base_path):

                    path = base_path / entry

                    if os.path.isdir(path):

                        directories.append({"path": str(path), "title": entry})

            else:

                for dirpath, _, _ in os.walk(base_path):

            for dirpath, dirs, _ in os.walk(base_path):

                # Get the relative path from the start path

                path_parts = os.path.relpath(dirpath, base_path).split(os.sep)

                if len(path_parts) > 1:

                    dirs.clear()

                # Only create a new entry for top-level directories

                if len(path_parts) == 1 and path_parts[0] != ".":  # This indicates a top-level directory

                    current_dir = {"path": dirpath, "title": path_parts[0]}

                            activatable=True,

                            active_strategy="single-independent",

                            classes="flex-1-0 h-0 overflow-y-auto",

                            fluid=True,

                            item_value="path",

                            items=(self._directories_name,),

                            click_open=(self._vm.expand_directory, "[$event.path]"),

                            update_activated=(self._vm.set_directory, "$event"),

                        )

                        vuetify.VListItem("No directories found", classes="flex-0-1 text-center", v_else=True)

    white-space: pre-wrap;

}

.nova-data-selector {

    .v-list-group {

        .v-treeview-item {

            --indent-padding: 1em !important;

        }

    }

}

.nova-data-selector revo-grid {

    font-family: 'Roboto', sans-serif;

    font-size: 0.75rem !important;