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NinjaCheetah
109e3dc25a
This functions essentially the same as the language selector. The language selector now also checks the currently set option on launch, and both the language and theme selectors spawn a popup prompting the user to restart NUSGet after selecting a new value.
101 lines
3.4 KiB
Python
101 lines
3.4 KiB
Python
# "modules/theme.py", licensed under the MIT license
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# Copyright 2024-2025 NinjaCheetah & Contributors
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import os
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import platform
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import subprocess
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from modules.config import update_setting
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def is_dark_theme_windows():
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# This has to be here so that Python doesn't try to import it on non-Windows.
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import winreg
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try:
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registry = winreg.ConnectRegistry(None, winreg.HKEY_CURRENT_USER)
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key = winreg.OpenKey(registry, r"Software\Microsoft\Windows\CurrentVersion\Themes\Personalize")
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# This value is "AppsUseLightTheme" so a "1" is light and a "0" is dark. Side note: I hate the Windows registry.
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value, _ = winreg.QueryValueEx(key, "AppsUseLightTheme")
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return value == 0
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except Exception:
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return False
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def is_dark_theme_macos():
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# macOS is weird. If the dark theme is on, then `defaults read -g AppleInterfaceStyle` returns "Dark". If the light
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# theme is on, then trying to read this key fails and returns an error instead.
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try:
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result = subprocess.run(
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["defaults", "read", "-g", "AppleInterfaceStyle"],
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capture_output=True, text=True
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)
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return "Dark" in result.stdout
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except Exception:
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return False
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def is_dark_theme_linux():
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try:
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import subprocess
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result = subprocess.run(
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["gsettings", "get", "org.gnome.desktop.interface", "gtk-theme"],
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capture_output=True, text=True
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)
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# Looking for *not* "Light", because I want any theme that isn't light to be dark. An example of this is my own
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# KDE Plasma setup on my desktop, where I use the "Breeze" GTK theme and want dark NUSGet to be used in that
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# case.
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return not "light" in result.stdout.lower()
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except Exception:
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return False
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def is_dark_theme(config_data: dict):
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# Theming priority order:
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# 1. `THEME` environment variable
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# 2. Theme saved in config.json
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# 3. The system theme
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# 4. Light, if all else fails (though personally I'd prefer dark)
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#
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# First, check for an environment variable overriding the theme, and use that if it exists.
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try:
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if os.environ["THEME"].lower() == "light":
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return False
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elif os.environ["THEME"].lower() == "dark":
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return True
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else:
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print(f"Unknown theme specified: \"{os.environ['THEME']}\"")
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except KeyError:
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pass
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# If the theme wasn't overridden, read the user's preference in config.json.
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try:
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match config_data["theme"]:
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case "light":
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return False
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case "dark":
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return True
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case _:
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pass
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except KeyError:
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pass
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# If a theme wasn't set (or the theme is "system"), then check for the system theme.
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system = platform.system()
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if system == "Windows":
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return is_dark_theme_windows()
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elif system == "Darwin":
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return is_dark_theme_macos()
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else:
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return is_dark_theme_linux()
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def set_theme(config_data: dict, theme: str) -> None:
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match theme:
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case "light":
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print("setting theme to light")
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update_setting(config_data, "theme", "light")
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case "dark":
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print("setting theme to dark")
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update_setting(config_data, "theme", "dark")
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case _:
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print("setting theme to system (default)")
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update_setting(config_data, "theme", "")
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