84 lines
3.3 KiB
Python
84 lines
3.3 KiB
Python
# https://github.com/zauberzeug/nicegui/blob/main/examples/local_file_picker/local_file_picker.py
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import platform
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from pathlib import Path
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from nicegui import events, ui
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class local_file_picker(ui.dialog):
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def __init__(self, directory: str, *,
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upper_limit: str | None = ..., multiple: bool = False, show_hidden_files: bool = False) -> None:
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"""Local File Picker
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This is a simple file picker that allows you to select a file from the local filesystem where NiceGUI is running.
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:param directory: The directory to start in.
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:param upper_limit: The directory to stop at (None: no limit, default: same as the starting directory).
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:param multiple: Whether to allow multiple files to be selected.
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:param show_hidden_files: Whether to show hidden files.
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"""
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super().__init__()
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self.path = Path(directory).expanduser()
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if upper_limit is None:
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self.upper_limit = None
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else:
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self.upper_limit = Path(directory if upper_limit == ... else upper_limit).expanduser()
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self.show_hidden_files = show_hidden_files
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with self, ui.card():
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self.add_drives_toggle()
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self.grid = ui.aggrid({
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'columnDefs': [{'field': 'name', 'headerName': 'File'}],
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'rowSelection': {'mode': 'multiRow' if multiple else 'singleRow'},
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}, html_columns=[0]).classes('w-96').on('cellDoubleClicked', self.handle_double_click)
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with ui.row().classes('w-full justify-end'):
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ui.button('Cancel', on_click=self.close).props('outline')
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ui.button('Ok', on_click=self._handle_ok)
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self.update_grid()
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def add_drives_toggle(self):
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if platform.system() == 'Windows':
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import win32api
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drives = win32api.GetLogicalDriveStrings().split('\000')[:-1]
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self.drives_toggle = ui.toggle(drives, value=drives[0], on_change=self.update_drive)
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def update_drive(self):
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self.path = Path(self.drives_toggle.value).expanduser()
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self.update_grid()
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def update_grid(self) -> None:
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paths = list(self.path.glob('*'))
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if not self.show_hidden_files:
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paths = [p for p in paths if not p.name.startswith('.')]
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paths.sort(key=lambda p: p.name.lower())
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paths.sort(key=lambda p: not p.is_dir())
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self.grid.options['rowData'] = [
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{
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'name': f'📁 <strong>{p.name}</strong>' if p.is_dir() else p.name,
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'path': str(p),
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}
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for p in paths
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]
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if (self.upper_limit is None and self.path != self.path.parent) or \
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(self.upper_limit is not None and self.path != self.upper_limit):
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self.grid.options['rowData'].insert(0, {
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'name': '📁 <strong>..</strong>',
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'path': str(self.path.parent),
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})
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self.grid.update()
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def handle_double_click(self, e: events.GenericEventArguments) -> None:
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self.path = Path(e.args['data']['path'])
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if self.path.is_dir():
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self.update_grid()
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else:
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self.submit([str(self.path)])
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async def _handle_ok(self):
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rows = await self.grid.get_selected_rows()
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self.submit([r['path'] for r in rows])
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