fix reload GTK23 themes with theme manager
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556d92134e
commit
74323a6bab
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@ -0,0 +1,159 @@
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#!/usr/bin/env python3
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#
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# bl-reload-gtk23: Make GTK2/3 reload settings file changes
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# Copyright (C) 2020 2ion <twoion@bunsenlabs.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from argparse import ArgumentParser, Namespace
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import Xlib.display # type: ignore
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import Xlib.protocol # type: ignore
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import logging
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import os
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import psutil # type: ignore
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import shutil
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import signal
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import subprocess
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import sys
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DESCRIPTION = ("""
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After changing GTK2 and GTK3 configuration files, notify running GTK2 and GTK3
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clients to apply those changes. The notification mechanism used by GTK3 requires
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that xsettingsd is running. If it is installed and not running, the program will
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launch it. Note that xsettingsd does not read settings from GTK3's settings.ini
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- if information is changed, it must be changed in xsettingsd config files as well.
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EXIT CODES:
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0 - both gtk2 and gtk3 clients notified successfully
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1 - failed to notify gtk2 clients
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2 - failed to notify gtk3 clients
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3 - failed to notify gtk2 and gtk3 clients
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""")
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LOG_FORMAT = "%(asctime)s %(levelname)s %(module)s %(funcName)s() : %(message)s"
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def getopts() -> Namespace:
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ap = ArgumentParser(description=DESCRIPTION)
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ap.add_argument("-d", "--debug", action="store_true", default=False, help="print debug information")
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ap.add_argument("-f", "--force", action="store_true", default=False, help="ignore all errors")
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opts = ap.parse_args()
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if opts.debug:
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logging.basicConfig(level=logging.DEBUG, format=LOG_FORMAT)
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else:
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logging.basicConfig(level=logging.WARN, format=LOG_FORMAT)
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return opts
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def sync_gtk2() -> None:
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""" Tell GTK2 X11 clients to reload the GTK RC files and update their
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appearance/settings if required. This implements this process without GTK/GDK
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in order to be able to drop the dependency on the obsolete pygtk library.
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GTK3/pygobject does not support GTK2.
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This function will always fail on non-X11 platforms as the GTK2 client
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notification mechanism is based on X.
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This implementation is based on the following resources:
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* From libgtk2 2.24.18:
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* gdk_event_send_client_message_to_all_recurse()
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* gdk_screen_broadcast_client_message()
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* From kde-gtk-config https://github.com/KDE/kde-gtk-config/blob/a5d4ddb3b1a27ec2ee4e1b6957a98a57ad56d39c/gtkproxies/reload.c
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"""
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display = Xlib.display.Display(display=os.getenv("DISPLAY"))
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wm_state_atom = display.intern_atom("WM_STATE", False)
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gtkrc_atom = display.intern_atom("_GTK_READ_RCFILES", False)
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def send_event(window) -> bool:
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""" Send a _GTK_READ_RCFILES client message to the given X window.
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Returns true unless an exception occurs. """
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window.send_event(
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Xlib.protocol.event.ClientMessage(
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window = window,
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client_type = gtkrc_atom,
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data = (8, b"\0" * 20),
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),
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propagate = 0,
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event_mask = 0
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)
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return True
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def recurse_windows(window, parents) -> bool:
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""" Given a X window, recurse over all its children and selectively
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apply the send_event function to them. Returns true if an event got sent
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to at least one window equal or below the given one. """
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sent = False
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wm_state = window.get_property(wm_state_atom, wm_state_atom, 0, 0)
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name = window.get_wm_name()
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level = len(parents)
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if wm_state is not None:
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sent = send_event(window)
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else:
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tree = window.query_tree()
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for child in tree.children:
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if not recurse_windows(child, parents + [window.id]) and level == 1:
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sent = send_event(window)
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logging.debug("%10s %s %s [%24s] [%s]",
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hex(window.id),
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"W" if not not wm_state else " ",
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"S" if sent else " ",
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name[:24] if name else "",
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",".join(map(hex, parents)))
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return sent
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for sno in range(0, display.screen_count()):
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screen = display.screen(sno)
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recurse_windows(screen.root, [])
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def sync_gtk3():
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""" GTK3 applications can be notified of changes to their theming via
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xsettingsd. This requires that the GTK3 theming information has been updated
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in settings.ini as well as the gsettings schema, managed either by a
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standalone xettingsd implementation or the gnome-settings-daemon. As for now,
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we only support reloading `xsettingsd`: Send SIGHUP if we find it running, or
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start it if it is installed and not running.
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* https://github.com/swaywm/sway/wiki/GTK-3-settings-on-Wayland
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* https://github.com/KDE/kde-gtk-config/blob/a5d4ddb3b1a27ec2ee4e1b6957a98a57ad56d39c/kded/configeditor.cpp#L285
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"""
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found = False
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for proc in psutil.process_iter():
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if proc.name() == "xsettingsd":
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proc.send_signal(signal.SIGHUP)
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found = True
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logging.debug("Found xsettingsd process and sent SIGHUP: PID %d", proc.pid)
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break
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if not found:
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xsettingsd_binary = shutil.which("xsettingsd")
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if xsettingsd_binary is not None:
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proc = subprocess.Popen([xsettingsd_binary], cwd="/", start_new_session=True)
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logging.debug("xsettingsd not running; started from %s; PID: %d", xsettingsd_binary, proc.pid)
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else:
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raise RuntimeError("xsettingsd not running and not in PATH, no settings changes propagated")
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def main() -> int:
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opts = getopts()
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ret = 0
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try:
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sync_gtk2()
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except Exception as err:
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logging.warning("Failed to reload GTK2 settings: %s", err)
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ret |= 1<<0
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try:
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sync_gtk3()
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except Exception as err:
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logging.warning("Failed to reload GTK3 settings: %s", err)
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ret |= 1<<1
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return 0 if opts.force else ret
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if __name__ == "__main__":
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sys.exit(main())
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@ -617,6 +617,19 @@ function getMenuPanel() {
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echo "configdir: $CONFIGDIR"
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cp "$HOME"/.config/mabox/mabox.conf "$CONFIGDIR"/
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}
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function setXsettingsd() {
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mkdir -p $HOME/.config/xsettingsd
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gtk_theme="$(grep "^[^#]*gtk-theme-name" "${HOME}/.config/gtk-3.0/settings.ini")"
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gtk_theme="${gtk_theme/gtk-theme-name*=}"
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echo "Net/ThemeName \"$gtk_theme\"" >> "$HOME/.config/xsettingsd/xsettingsd.conf"
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gtk_theme_icons="$(grep "^[^#]*gtk-icon-theme-name" "${HOME}/.config/gtk-3.0/settings.ini")"
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gtk_theme_icons="${gtk_theme_icons/gtk-icon-theme-name*=}"
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echo "Net/IconThemeName \"$gtk_theme_icons\"" > "$HOME/.config/xsettingsd/xsettingsd.conf"
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bl-reload-gtk23
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}
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function checkTint2(){ # kill or restart tint2s for screenshot, if necessary
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if [[ $1 = stop ]];then
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if ! cat "$SETTINGS" | grep "TINT2" &>/dev/null;then
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@ -1100,6 +1113,7 @@ function restoreSettings(){
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#mb-regenerate-menu
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restoreMenuPanel "$FPATH"
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restoreSettings
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setXsettingsd
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}
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### END FUNCTIONS ######################################################
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