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"""Set the wallpaper."""
import ctypes
import logging
import os
import shutil
import subprocess
import urllib.parse
from .settings import CACHE_DIR, HOME, OS
from . import util
def get_desktop_env():
"""Identify the current running desktop environment."""
desktop = os.environ.get("XDG_CURRENT_DESKTOP")
if desktop:
return desktop
desktop = os.environ.get("DESKTOP_SESSION")
if desktop:
return desktop
desktop = os.environ.get("GNOME_DESKTOP_SESSION_ID")
if desktop:
return "GNOME"
desktop = os.environ.get("MATE_DESKTOP_SESSION_ID")
if desktop:
return "MATE"
desktop = os.environ.get("SWAYSOCK")
if desktop:
return "SWAY"
return None
def xfconf(path, img):
"""Call xfconf to set the wallpaper on XFCE."""
util.disown(["xfconf-query", "--channel", "xfce4-desktop",
"--property", path, "--set", img])
def set_wm_wallpaper(img):
"""Set the wallpaper for non desktop environments."""
if shutil.which("feh"):
util.disown(["feh", "--bg-fill", img])
elif shutil.which("nitrogen"):
util.disown(["nitrogen", "--set-zoom-fill", img])
elif shutil.which("bgs"):
util.disown(["bgs", "-z", img])
elif shutil.which("hsetroot"):
util.disown(["hsetroot", "-fill", img])
elif shutil.which("habak"):
util.disown(["habak", "-mS", img])
elif shutil.which("display"):
util.disown(["display", "-backdrop", "-window", "root", img])
else:
logging.error("No wallpaper setter found.")
return
def set_desktop_wallpaper(desktop, img):
"""Set the wallpaper for the desktop environment."""
desktop = str(desktop).lower()
if "xfce" in desktop or "xubuntu" in desktop:
# XFCE requires two commands since they differ between versions.
xfconf("/backdrop/screen0/monitor0/image-path", img)
xfconf("/backdrop/screen0/monitor0/workspace0/last-image", img)
elif "muffin" in desktop or "cinnamon" in desktop:
util.disown(["gsettings", "set",
"org.cinnamon.desktop.background",
"picture-uri", "file://" + urllib.parse.quote(img)])
elif "gnome" in desktop or "unity" in desktop:
util.disown(["gsettings", "set",
"org.gnome.desktop.background",
"picture-uri", "file://" + urllib.parse.quote(img)])
elif "mate" in desktop:
util.disown(["gsettings", "set", "org.mate.background",
"picture-filename", img])
elif "sway" in desktop:
util.disown(["swaymsg", "output", "*", "bg", img, "fill"])
else:
set_wm_wallpaper(img)
def set_mac_wallpaper(img):
"""Set the wallpaper on macOS."""
db_file = "Library/Application Support/Dock/desktoppicture.db"
db_path = os.path.join(HOME, db_file)
subprocess.call(["sqlite3", db_path, "update data set value = '%s'" % img])
# Kill the dock to fix issues with cached wallpapers.
# macOS caches wallpapers and if a wallpaper is set that shares
# the filename with a cached wallpaper, the cached wallpaper is
# used instead.
subprocess.call(["killall", "Dock"])
def set_win_wallpaper(img):
"""Set the wallpaper on Windows."""
# There's a different command depending on the architecture
# of Windows. We check the PROGRAMFILES envar since using
# platform is unreliable.
if "x86" in os.environ["PROGRAMFILES"]:
ctypes.windll.user32.SystemParametersInfoW(20, 0, img, 3)
else:
ctypes.windll.user32.SystemParametersInfoA(20, 0, img, 3)
def change(img):
"""Set the wallpaper."""
if not os.path.isfile(img):
return
desktop = get_desktop_env()
if OS == "Darwin":
set_mac_wallpaper(img)
elif OS == "Windows":
set_win_wallpaper(img)
else:
set_desktop_wallpaper(desktop, img)
logging.info("Set the new wallpaper.")
def get(cache_dir=CACHE_DIR):
"""Get the current wallpaper."""
current_wall = os.path.join(cache_dir, "wal")
if os.path.isfile(current_wall):
return util.read_file(current_wall)[0]
return "None"
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