pax
5812f54877
_use_gtk() created a fresh Database instance on every file dialog open just to read one setting. Now caches the result at module level after first check. reset_gtk_cache() clears it when the setting changes.
112 lines
2.9 KiB
Python
112 lines
2.9 KiB
Python
"""Native file dialog wrappers. Uses zenity on Linux when GTK dialogs are preferred."""
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from __future__ import annotations
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import subprocess
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from PySide6.QtWidgets import QFileDialog, QWidget
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from ..core.config import IS_WINDOWS
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_gtk_cached: bool | None = None
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def _use_gtk() -> bool:
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global _gtk_cached
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if IS_WINDOWS:
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return False
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if _gtk_cached is not None:
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return _gtk_cached
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try:
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from ..core.db import Database
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db = Database()
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val = db.get_setting("file_dialog_platform")
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db.close()
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_gtk_cached = val == "gtk"
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except Exception:
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_gtk_cached = False
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return _gtk_cached
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def reset_gtk_cache() -> None:
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"""Called after settings change so the next dialog picks up the new value."""
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global _gtk_cached
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_gtk_cached = None
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def save_file(
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parent: QWidget | None,
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title: str,
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default_name: str,
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filter_str: str,
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) -> str | None:
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"""Show a save file dialog. Returns path or None."""
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if _use_gtk():
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try:
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result = subprocess.run(
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[
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"zenity", "--file-selection", "--save",
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"--title", title,
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"--filename", default_name,
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"--confirm-overwrite",
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],
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capture_output=True, text=True,
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)
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if result.returncode == 0:
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return result.stdout.strip()
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return None
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except FileNotFoundError:
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pass # zenity not installed, fall through to Qt
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path, _ = QFileDialog.getSaveFileName(parent, title, default_name, filter_str)
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return path or None
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def open_file(
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parent: QWidget | None,
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title: str,
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filter_str: str,
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) -> str | None:
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"""Show an open file dialog. Returns path or None."""
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if _use_gtk():
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try:
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result = subprocess.run(
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[
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"zenity", "--file-selection",
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"--title", title,
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],
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capture_output=True, text=True,
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)
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if result.returncode == 0:
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return result.stdout.strip()
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return None
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except FileNotFoundError:
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pass
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path, _ = QFileDialog.getOpenFileName(parent, title, "", filter_str)
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return path or None
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def select_directory(
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parent: QWidget | None,
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title: str,
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) -> str | None:
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"""Show a directory picker. Returns path or None."""
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if _use_gtk():
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try:
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result = subprocess.run(
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[
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"zenity", "--file-selection", "--directory",
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"--title", title,
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],
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capture_output=True, text=True,
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)
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if result.returncode == 0:
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return result.stdout.strip()
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return None
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except FileNotFoundError:
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pass
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path = QFileDialog.getExistingDirectory(parent, title)
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return path or None
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