132 lines
5.7 KiB
Python
132 lines
5.7 KiB
Python
import os
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import tkinter as tk
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from typing import Optional, TYPE_CHECKING
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from .cfd_app_config import LocaleStrings
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if TYPE_CHECKING:
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from custom_file_dialog import CustomFileDialog
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class NavigationManager:
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"""Manages directory navigation, history, and path handling."""
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def __init__(self, dialog: 'CustomFileDialog') -> None:
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"""
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Initializes the NavigationManager.
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Args:
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dialog: The main CustomFileDialog instance.
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"""
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self.dialog = dialog
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def handle_path_entry_return(self, event: tk.Event) -> None:
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"""
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Handles the Return key press in the path entry field.
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It attempts to navigate to the entered path. If the path is a file,
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it navigates to the containing directory and selects the file.
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Args:
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event: The tkinter event that triggered this handler.
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"""
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path_text = self.dialog.widget_manager.path_entry.get().strip()
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potential_path = os.path.realpath(os.path.expanduser(path_text))
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if os.path.isdir(potential_path):
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self.navigate_to(potential_path)
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elif os.path.isfile(potential_path):
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directory = os.path.dirname(potential_path)
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filename = os.path.basename(potential_path)
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self.navigate_to(directory, file_to_select=filename)
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else:
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self.dialog.widget_manager.search_status_label.config(
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text=f"{LocaleStrings.CFD['path_not_found']}: {self.dialog.shorten_text(path_text, 50)}")
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def navigate_to(self, path: str, file_to_select: Optional[str] = None) -> None:
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"""
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Navigates to a specified directory path.
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This is the core navigation method. It validates the path, checks for
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read permissions, updates the dialog's current directory, manages the
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navigation history, and refreshes the file view.
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Args:
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path (str): The absolute path to navigate to.
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file_to_select (str, optional): If provided, this filename will be
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selected after navigation. Defaults to None.
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"""
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try:
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real_path = os.path.realpath(
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os.path.abspath(os.path.expanduser(path)))
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if not os.path.isdir(real_path):
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self.dialog.widget_manager.search_status_label.config(
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text=f"{LocaleStrings.CFD['error_title']}: {LocaleStrings.CFD['directory']} '{os.path.basename(path)}' {LocaleStrings.CFD['not_found']}")
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return
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if not os.access(real_path, os.R_OK):
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self.dialog.widget_manager.search_status_label.config(
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text=f"{LocaleStrings.CFD['access_to']} '{os.path.basename(path)}' {LocaleStrings.CFD['denied']}")
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return
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self.dialog.current_dir = real_path
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if self.dialog.history_pos < len(self.dialog.history) - 1:
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self.dialog.history = self.dialog.history[:self.dialog.history_pos + 1]
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if not self.dialog.history or self.dialog.history[-1] != self.dialog.current_dir:
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self.dialog.history.append(self.dialog.current_dir)
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self.dialog.history_pos = len(self.dialog.history) - 1
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self.dialog.widget_manager.search_animation.stop()
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# Clear previous selection state before populating new view
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self.dialog.selected_item_frames.clear()
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self.dialog.result = None
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self.dialog.view_manager.populate_files(
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item_to_select=file_to_select)
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self.update_nav_buttons()
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self.dialog.update_selection_info() # Use the new central update method
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self.dialog.update_action_buttons_state()
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except Exception as e:
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self.dialog.widget_manager.search_status_label.config(
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text=f"{LocaleStrings.CFD['error_title']}: {e}")
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def go_back(self) -> None:
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"""Navigates to the previous directory in the history."""
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if self.dialog.history_pos > 0:
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self.dialog.history_pos -= 1
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self.dialog.current_dir = self.dialog.history[self.dialog.history_pos]
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self._update_ui_after_navigation()
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def go_forward(self) -> None:
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"""Navigates to the next directory in the history."""
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if self.dialog.history_pos < len(self.dialog.history) - 1:
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self.dialog.history_pos += 1
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self.dialog.current_dir = self.dialog.history[self.dialog.history_pos]
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self._update_ui_after_navigation()
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def go_up_level(self) -> None:
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"""Navigates to the parent directory of the current directory."""
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if self.dialog.current_fs_type == "sftp":
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if self.dialog.current_dir and self.dialog.current_dir != "/":
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new_path = self.dialog.current_dir.rsplit('/', 1)[0]
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if not new_path:
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new_path = "/"
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self.navigate_to(new_path)
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else:
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new_path = os.path.dirname(self.dialog.current_dir)
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if new_path != self.dialog.current_dir:
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self.navigate_to(new_path)
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def _update_ui_after_navigation(self) -> None:
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"""Updates all necessary UI components after a navigation action."""
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self.dialog.view_manager.populate_files()
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self.update_nav_buttons()
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self.dialog.update_selection_info()
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self.dialog.update_action_buttons_state()
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def update_nav_buttons(self) -> None:
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"""Updates the state of the back and forward navigation buttons."""
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self.dialog.widget_manager.back_button.config(
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state=tk.NORMAL if self.dialog.history_pos > 0 else tk.DISABLED)
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self.dialog.widget_manager.forward_button.config(state=tk.NORMAL if self.dialog.history_pos < len(
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self.dialog.history) - 1 else tk.DISABLED)
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