# main.py
#
# Change the look of Adwaita, with ease
# Copyright (C) 2022 Gradience Team
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see .
import sys
import json
import os
from gi.repository import Gtk, Gdk, Gio, Adw, GLib, Xdp, XdpGtk4
from material_color_utilities_python import *
from .settings_schema import settings_schema
from .window import GradienceMainWindow
from .app_type_dialog import GradienceAppTypeDialog
from .custom_css_group import GradienceCustomCSSGroup
from .constants import (
rootdir,
app_id,
rel_ver,
version,
bugtracker_url,
help_url,
project_url,
)
from .modules.css import load_preset_from_css
from .welcome import GradienceWelcomeWindow
from .preferences import GradiencePreferencesWindow
from .modules.utils import to_slug_case, buglog
from .plugins_list import GradiencePluginsList
class GradienceApplication(Adw.Application):
"""The main application singleton class."""
__gtype_name__ = "GradienceApplication"
settings = Gio.Settings.new(app_id)
def __init__(self):
super().__init__(application_id=app_id, flags=Gio.ApplicationFlags.FLAGS_NONE)
self.set_resource_base_path(rootdir)
self.portal = Xdp.Portal()
self.preset_name = ""
self.is_dirty = False
self.variables = {}
self.pref_variables = {}
self.palette = {}
self.pref_palette_shades = {}
self.custom_css = {}
self.custom_css_group = None
self.custom_presets = {}
self.global_errors = []
self.current_css_provider = None
self.is_ready = False
self.first_run = self.settings.get_boolean("first-run")
self.style_manager = Adw.StyleManager.get_default()
def do_activate(self):
"""Called when the application is activated.
We raise the application's main window, creating it if
necessary.
"""
self.win = self.props.active_window
if not self.win:
self.win = GradienceMainWindow(application=self)
self.plugins_list = GradiencePluginsList(self.win)
self.setup_plugins()
self.create_action("open_preset_directory", self.open_preset_directory)
self.create_stateful_action(
"load_preset",
GLib.VariantType.new("s"),
GLib.Variant("s", "adwaita"),
self.load_preset_action,
)
self.create_action("apply_color_scheme",
self.show_apply_color_scheme_dialog)
self.create_action("show_adwaita_demo", self.show_adwaita_demo)
self.create_action("show_gtk4_widget_factory",
self.show_gtk4_widget_factory)
self.create_action("show_gtk4_demo", self.show_gtk4_demo)
self.create_action(
"restore_color_scheme", self.show_restore_color_scheme_dialog
)
self.create_action("reset_color_scheme",
self.show_reset_color_scheme_dialog)
self.create_action("preferences", self.show_preferences)
self.create_action("save_preset", self.show_save_preset_dialog)
self.create_action("about", self.show_about_window)
self.load_preset_from_css()
if self.first_run:
buglog("first run")
welcome = GradienceWelcomeWindow(self.win)
welcome.present()
else:
buglog("normal run")
self.win.present()
def load_preset_from_css(self):
try:
variables, palette, custom_css = load_preset_from_css(
os.path.join(
os.environ.get("XDG_CONFIG_HOME",
os.environ["HOME"] + "/.config"),
"gtk-4.0",
"gtk.css",
)
)
preset = {
"name": "User",
"variables": variables,
"palette": palette,
"custom_css": {"gtk4": custom_css},
}
self.load_preset_variables(preset)
except OSError: # fallback to adwaita
if self.style_manager.get_dark():
self.load_preset_from_resource(
f"{rootdir}/presets/adwaita-dark.json")
else:
self.load_preset_from_resource(
f"{rootdir}/presets/adwaita.json")
def open_preset_directory(self, *_args):
parent = XdpGtk4.parent_new_gtk(self.props.active_window)
def open_dir_callback(_, result):
self.portal.open_uri_finish(result)
self.portal.open_uri(
parent,
"file://"
+ os.path.join(
os.environ.get("XDG_CONFIG_HOME",
os.environ["HOME"] + "/.config"),
"presets",
),
Xdp.OpenUriFlags.NONE,
None,
open_dir_callback,
)
def load_preset_from_file(self, preset_path):
buglog(f"load preset from file {preset_path}")
preset_text = ""
with open(preset_path, "r", encoding="utf-8") as file:
preset_text = file.read()
self.load_preset_variables(json.loads(preset_text))
def load_preset_from_resource(self, preset_path):
preset_text = Gio.resources_lookup_data(
preset_path, 0).get_data().decode()
self.load_preset_variables(json.loads(preset_text))
def load_preset_variables(self, preset):
self.is_ready = False
self.preset_name = preset["name"]
self.variables = preset["variables"]
self.palette = preset["palette"]
if "custom_css" in preset:
self.custom_css = preset["custom_css"]
else:
for app_type in settings_schema["custom_css_app_types"]:
self.custom_css[app_type] = ""
for key in self.variables.keys():
if key in self.pref_variables:
self.pref_variables[key].update_value(self.variables[key])
for key in self.palette.keys():
if key in self.pref_palette_shades:
self.pref_palette_shades[key].update_shades(self.palette[key])
self.custom_css_group.load_custom_css(self.custom_css)
self.clear_dirty()
self.reload_variables()
@staticmethod
def rgba_from_argb(argb, alpha=None) -> str:
base = "rgba({}, {}, {}, {})"
red = redFromArgb(argb)
green = greenFromArgb(argb)
blue = blueFromArgb(argb)
if not alpha:
alpha = alphaFromArgb(argb)
return base.format(red, green, blue, alpha)
def update_theme_from_monet(self, theme, tone, monet_theme):
palettes = theme["palettes"]
monet_theme = monet_theme.get_string().lower() # dark / light
palette = {}
i = 0
for color in palettes.values():
i += 1
palette[str(i)] = hexFromArgb(color.tone(int(tone.get_string())))
self.pref_palette_shades["monet"].update_shades(palette)
if monet_theme == "auto":
if self.style_manager.get_dark():
monet_theme = "dark"
else:
monet_theme = "light"
if monet_theme == "dark":
dark_theme = theme["schemes"]["dark"]
variable = {
"accent_color": self.rgba_from_argb(dark_theme.primary),
"accent_bg_color": self.rgba_from_argb(dark_theme.primaryContainer),
"accent_fg_color": self.rgba_from_argb(dark_theme.onPrimaryContainer),
"destructive_color": self.rgba_from_argb(dark_theme.error),
"destructive_bg_color": self.rgba_from_argb(dark_theme.errorContainer),
"destructive_fg_color": self.rgba_from_argb(dark_theme.onError),
"success_color": self.rgba_from_argb(dark_theme.tertiary),
"success_bg_color": self.rgba_from_argb(dark_theme.onTertiary),
"success_fg_color": self.rgba_from_argb(dark_theme.tertiaryContainer),
"warning_color": self.rgba_from_argb(dark_theme.secondaryContainer),
"warning_bg_color": self.rgba_from_argb(dark_theme.inversePrimary),
"warning_fg_color": self.rgba_from_argb(dark_theme.primary, "0.8"),
"error_color": self.rgba_from_argb(dark_theme.error),
"error_bg_color": self.rgba_from_argb(dark_theme.errorContainer),
"error_fg_color": self.rgba_from_argb(dark_theme.onError),
"window_bg_color": self.rgba_from_argb(dark_theme.surface),
"window_fg_color": self.rgba_from_argb(dark_theme.onSurface),
"view_bg_color": self.rgba_from_argb(dark_theme.surface),
"view_fg_color": self.rgba_from_argb(dark_theme.onSurface),
"headerbar_bg_color": self.rgba_from_argb(dark_theme.surface),
"headerbar_fg_color": self.rgba_from_argb(dark_theme.onSurface),
"headerbar_border_color": self.rgba_from_argb(
dark_theme.primary, "0.8"
),
"headerbar_backdrop_color": "@window_bg_color",
"headerbar_shade_color": self.rgba_from_argb(dark_theme.shadow),
"card_bg_color": self.rgba_from_argb(dark_theme.primary, "0.05"),
"card_fg_color": self.rgba_from_argb(dark_theme.onSecondaryContainer),
"card_shade_color": self.rgba_from_argb(dark_theme.shadow),
"dialog_bg_color": self.rgba_from_argb(dark_theme.secondaryContainer),
"dialog_fg_color": self.rgba_from_argb(dark_theme.onSecondaryContainer),
"popover_bg_color": self.rgba_from_argb(dark_theme.secondaryContainer),
"popover_fg_color": self.rgba_from_argb(
dark_theme.onSecondaryContainer
),
"shade_color": self.rgba_from_argb(dark_theme.shadow),
"scrollbar_outline_color": self.rgba_from_argb(dark_theme.outline),
}
else: # light
light_theme = theme["schemes"]["light"]
variable = {
"accent_color": self.rgba_from_argb(light_theme.primary),
"accent_bg_color": self.rgba_from_argb(light_theme.primary),
"accent_fg_color": self.rgba_from_argb(light_theme.onPrimaryContainer),
"destructive_color": self.rgba_from_argb(light_theme.error),
"destructive_bg_color": self.rgba_from_argb(light_theme.errorContainer),
"destructive_fg_color": self.rgba_from_argb(light_theme.onError),
"success_color": self.rgba_from_argb(light_theme.tertiary),
"success_bg_color": self.rgba_from_argb(light_theme.onTertiary),
"success_fg_color": self.rgba_from_argb(light_theme.tertiaryContainer),
"warning_color": self.rgba_from_argb(light_theme.inversePrimary),
"warning_bg_color": self.rgba_from_argb(light_theme.inversePrimary),
"warning_fg_color": self.rgba_from_argb(light_theme.primary, "0.8"),
"error_color": self.rgba_from_argb(light_theme.error),
"error_bg_color": self.rgba_from_argb(light_theme.errorContainer),
"error_fg_color": self.rgba_from_argb(light_theme.onError),
"window_bg_color": self.rgba_from_argb(light_theme.secondaryContainer),
"window_fg_color": self.rgba_from_argb(light_theme.onSurface),
"view_bg_color": self.rgba_from_argb(light_theme.secondaryContainer),
"view_fg_color": self.rgba_from_argb(light_theme.onSurface),
"headerbar_bg_color": self.rgba_from_argb(
light_theme.secondaryContainer
),
"headerbar_fg_color": self.rgba_from_argb(light_theme.onSurface),
"headerbar_border_color": self.rgba_from_argb(
light_theme.primary, "0.8"
),
"headerbar_backdrop_color": "@window_bg_color",
"headerbar_shade_color": self.rgba_from_argb(
light_theme.secondaryContainer
),
"card_bg_color": self.rgba_from_argb(light_theme.primary, "0.05"),
"card_fg_color": self.rgba_from_argb(light_theme.onSecondaryContainer),
"card_shade_color": self.rgba_from_argb(light_theme.shadow),
"dialog_bg_color": self.rgba_from_argb(light_theme.secondaryContainer),
"dialog_fg_color": self.rgba_from_argb(
light_theme.onSecondaryContainer
),
"popover_bg_color": self.rgba_from_argb(light_theme.secondaryContainer),
"popover_fg_color": self.rgba_from_argb(
light_theme.onSecondaryContainer
),
"shade_color": self.rgba_from_argb(light_theme.shadow),
"scrollbar_outline_color": self.rgba_from_argb(light_theme.outline),
}
for key in variable:
if key in self.pref_variables:
self.pref_variables[key].update_value(variable[key])
self.reload_variables()
def generate_gtk_css(self, app_type):
final_css = ""
for key in self.variables.keys():
final_css += f"@define-color {key} {self.variables[key]};\n"
for prefix_key in self.palette.keys():
for key in self.palette[prefix_key].keys():
final_css += f"@define-color {prefix_key + key} {self.palette[prefix_key][key]};\n"
final_css += self.custom_css.get(app_type, "")
return final_css
def mark_as_dirty(self):
self.is_dirty = True
self.props.active_window.save_preset_button.get_child().set_icon_name(
"drive-unsaved-symbolic"
)
self.props.active_window.save_preset_button.add_css_class("warning")
self.props.active_window.save_preset_button.get_child().set_tooltip_text(
_("Unsaved changes")
)
def clear_dirty(self):
self.is_dirty = False
self.props.active_window.save_preset_button.get_child().set_icon_name(
"drive-symbolic"
)
self.props.active_window.save_preset_button.remove_css_class("warning")
self.props.active_window.save_preset_button.get_child().set_label("")
self.props.active_window.save_preset_button.get_child().set_tooltip_text(
_("Save changes")
)
def reload_variables(self):
parsing_errors = []
gtk_css = self.generate_gtk_css("gtk4")
css_provider = Gtk.CssProvider()
def on_error(_, section, error):
start_location = section.get_start_location().chars
end_location = section.get_end_location().chars
line_number = section.get_end_location().lines
parsing_errors.append(
{
"error": error.message,
"element": gtk_css[start_location:end_location].strip(),
"line": gtk_css.splitlines()[line_number]
if line_number < len(gtk_css.splitlines())
else "",
}
)
css_provider.connect("parsing-error", on_error)
css_provider.load_from_data(gtk_css.encode())
self.props.active_window.update_errors(
self.global_errors + parsing_errors)
# loading with the priority above user to override the applied config
if self.current_css_provider is not None:
Gtk.StyleContext.remove_provider_for_display(
Gdk.Display.get_default(), self.current_css_provider
)
Gtk.StyleContext.add_provider_for_display(
Gdk.Display.get_default(),
css_provider,
Gtk.STYLE_PROVIDER_PRIORITY_USER + 1,
)
self.current_css_provider = css_provider
self.is_ready = True
def load_preset_action(self, _unused, *args):
if args[0].get_string().startswith("custom-"):
self.load_preset_from_file(
os.path.join(
os.environ.get("XDG_CONFIG_HOME",
os.environ["HOME"] + "/.config"),
"presets",
args[0].get_string().replace("custom-", "", 1) + ".json",
)
)
else:
self.load_preset_from_resource(
f"{rootdir}/presets/" + args[0].get_string() + ".json"
)
Gio.SimpleAction.set_state(self.lookup_action("load_preset"), args[0])
def show_apply_color_scheme_dialog(self, *_args):
dialog = GradienceAppTypeDialog(
_("Apply this color scheme?"),
_(
"Warning: any custom CSS files for those app types will be irreversibly overwritten!"
),
"apply",
_("Apply"),
Adw.ResponseAppearance.SUGGESTED,
transient_for=self.props.active_window,
)
dialog.connect("response", self.apply_color_scheme)
dialog.present()
def show_restore_color_scheme_dialog(self, *_args):
dialog = GradienceAppTypeDialog(
_("Restore applied color scheme?"),
_("Make sure you have the current settings saved as a preset."),
"restore",
_("Restore"),
Adw.ResponseAppearance.DESTRUCTIVE,
transient_for=self.props.active_window,
)
dialog.connect("response", self.restore_color_scheme)
dialog.present()
def show_reset_color_scheme_dialog(self, *_args):
dialog = GradienceAppTypeDialog(
_("Reset applied color scheme?"),
_("Make sure you have the current settings saved as a preset."),
"reset",
_("Reset"),
Adw.ResponseAppearance.DESTRUCTIVE,
transient_for=self.props.active_window,
)
dialog.connect("response", self.reset_color_scheme)
dialog.present()
def show_save_preset_dialog(self, *_args):
dialog = Adw.MessageDialog(
transient_for=self.props.active_window,
heading=_("Save preset as..."),
body=_(
"Saving preset to {0}. If that preset already exists, it will be overwritten!"
).format(
os.path.join(
os.environ.get("XDG_CONFIG_HOME",
os.environ["HOME"] + "/.config"),
"presets",
"user",
to_slug_case(self.preset_name) + ".json",
)
),
body_use_markup=True,
)
dialog.add_response("cancel", _("Cancel"))
dialog.add_response("save", _("Save"))
dialog.set_response_appearance(
"save", Adw.ResponseAppearance.SUGGESTED)
dialog.set_default_response("cancel")
dialog.set_close_response("cancel")
preset_entry = Gtk.Entry(placeholder_text="Preset Name")
preset_entry.set_text(self.preset_name)
def on_preset_entry_change(*_args):
if len(preset_entry.get_text()) == 0:
dialog.set_body(
_(
"Saving preset to {0}. If that preset already exists, it will be overwritten!"
).format(
os.path.join(
os.environ.get(
"XDG_CONFIG_HOME", os.environ["HOME"] +
"/.config"
),
"presets",
"user",
)
)
)
dialog.set_response_enabled("save", False)
else:
dialog.set_body(
_(
"Saving preset to {0}. If that preset already exists, it will be overwritten!"
).format(
os.path.join(
os.environ.get(
"XDG_CONFIG_HOME", os.environ["HOME"] +
"/.config"
),
"presets",
"user",
to_slug_case(preset_entry.get_text()) + ".json",
)
)
)
dialog.set_response_enabled("save", True)
preset_entry.connect("changed", on_preset_entry_change)
dialog.set_extra_child(preset_entry)
dialog.connect("response", self.save_preset, preset_entry)
dialog.present()
def save_preset(self, _unused, response, entry):
if response == "save":
if not os.path.exists(
os.path.join(
os.environ.get("XDG_CONFIG_HOME",
os.environ["HOME"] + "/.config"),
"presets",
"user",
)
):
os.makedirs(
os.path.join(
os.environ.get(
"XDG_CONFIG_HOME", os.environ["HOME"] + "/.config"
),
"presets",
"user",
)
)
with open(
os.path.join(
os.environ.get("XDG_CONFIG_HOME",
os.environ["HOME"] + "/.config"),
"presets",
"user",
to_slug_case(entry.get_text()) + ".json",
),
"w",
encoding="utf-8",
) as file:
object_to_write = {
"name": entry.get_text(),
"variables": self.variables,
"palette": self.palette,
"custom_css": self.custom_css,
"plugins": self.plugins_list.save(),
}
file.write(json.dumps(object_to_write, indent=4))
self.clear_dirty()
self.win.toast_overlay.add_toast(
Adw.Toast(title=_("Preset saved")))
def apply_color_scheme(self, widget, response):
if response == "apply":
if widget.get_app_types()["gtk4"]:
gtk4_dir = os.path.join(
os.environ.get("XDG_CONFIG_HOME",
os.environ["HOME"] + "/.config"),
"gtk-4.0",
)
if not os.path.exists(gtk4_dir):
os.makedirs(gtk4_dir)
gtk4_css = self.generate_gtk_css("gtk4")
contents = ""
try:
with open(
os.path.join(gtk4_dir, "gtk.css"), "r", encoding="utf-8"
) as file:
contents = file.read()
except FileNotFoundError: # first run
pass
else:
with open(
os.path.join(gtk4_dir, "gtk.css.bak"), "w", encoding="utf-8"
) as file:
file.write(contents)
finally:
with open(
os.path.join(gtk4_dir, "gtk.css"), "w", encoding="utf-8"
) as file:
file.write(gtk4_css)
if widget.get_app_types()["gtk3"]:
gtk3_dir = os.path.join(
os.environ.get("XDG_CONFIG_HOME",
os.environ["HOME"] + "/.config"),
"gtk-3.0",
)
if not os.path.exists(gtk3_dir):
os.makedirs(gtk3_dir)
gtk3_css = self.generate_gtk_css("gtk3")
contents = ""
try:
with open(
os.path.join(gtk3_dir, "gtk.css"), "r", encoding="utf-8"
) as file:
contents = file.read()
except FileNotFoundError: # first run
pass
else:
with open(
os.path.join(gtk3_dir, "gtk.css.bak"), "w", encoding="utf-8"
) as file:
file.write(contents)
finally:
with open(
os.path.join(gtk3_dir, "gtk.css"), "w", encoding="utf-8"
) as file:
file.write(gtk3_css)
self.reload_plugins()
self.plugins_list.apply()
self.win.toast_overlay.add_toast(
Adw.Toast(title=_("Preset set sucessfully"))
)
def restore_color_scheme(self, widget, response):
if response == "restore":
if widget.get_app_types()["gtk4"]:
file = Gio.File.new_for_path(
os.path.join(
os.environ.get(
"XDG_CONFIG_HOME", os.environ["HOME"] + "/.config"
),
"gtk-4.0/gtk.css.bak",
)
)
try:
backup = open(
os.path.join(
os.environ.get(
"XDG_CONFIG_HOME", os.environ["HOME"] +
"/.config"
),
"gtk-4.0/gtk.css.bak",
),
"r",
encoding="utf-8",
)
contents = backup.read()
backup.close()
gtk4css = open(
os.path.join(
os.environ.get(
"XDG_CONFIG_HOME", os.environ["HOME"] +
"/.config"
),
"gtk-4.0/gtk.css",
),
"w",
encoding="utf-8",
)
gtk4css.write(contents)
gtk4css.close()
except FileNotFoundError:
self.win.toast_overlay.add_toast(
Adw.Toast(title=_("Could not restore GTK4 backup"))
)
def reset_color_scheme(self, widget, response):
if response == "reset":
if widget.get_app_types()["gtk4"]:
file = Gio.File.new_for_path(
os.path.join(
os.environ.get(
"XDG_CONFIG_HOME", os.environ["HOME"] + "/.config"
),
"gtk-4.0/gtk.css",
)
)
try:
file.delete()
except Exception:
pass
if widget.get_app_types()["gtk3"]:
file = Gio.File.new_for_path(
os.path.join(
os.environ.get(
"XDG_CONFIG_HOME", os.environ["HOME"] + "/.config"
),
"gtk-3.0/gtk.css",
)
)
try:
file.delete()
except Exception:
pass
self.win.toast_overlay.add_toast(
Adw.Toast(title=_("Preset reseted")))
def show_preferences(self, *_args):
prefs = GradiencePreferencesWindow(self.win)
prefs.set_transient_for(self.win)
prefs.present()
def show_about_window(self, *_args):
about = Adw.AboutWindow(
transient_for=self.props.active_window,
application_name=_("Gradience"),
application_icon=app_id,
developer_name=_("Gradience Team"),
website=project_url,
support_url=help_url,
issue_url=bugtracker_url,
developers=[
'Artyom "ArtyIF" Fomin https://github.com/ArtyIF',
"0xMRTT https://github.com/0xMRTT",
"Verantor https://github.com/Verantor",
],
artists=["David Lapshin https://github.com/daudix-UFO"],
designers=["David Lapshin https://github.com/daudix-UFO"],
# Translators: This is a place to put your credits (formats: "Name
# https://example.com" or "Name ", no quotes)
# and is not meant to be translated literally.
# TODO: Automate this process using CI, because not everyone knows
# about this
translator_credits="""Maxime V https://www.transifex.com/user/profile/Adaoh/
FineFindus https://github.com/FineFindus
Karol Lademan https://www.transifex.com/user/profile/karlod/
Monty Monteusz https://www.transifex.com/user/profile/MontyQIQI/
Renato Corrêa https://www.transifex.com/user/profile/renatocrrs/
Aggelos Tselios https://www.transifex.com/user/profile/AndroGR/
David Lapshin https://github.com/daudix-UFO
0xMRTT https://github.com/0xMRTT
tfuxu https://github.com/tfuxu
Juanjo Cillero https://www.transifex.com/user/profile/renux918/
Taylan Tatlı https://www.transifex.com/user/profile/TaylanTatli34/""",
copyright="© 2022 Gradience Team",
license_type=Gtk.License.GPL_3_0,
version=version,
release_notes_version=rel_ver,
release_notes=_(
"""
- Add AdwViewSwitcher in the header bar.
- Move CSS to the "Advanced" tab
- Move the rest to the "Colours" tab
- Add Monet tab which generates a theme from a background
- Add disk saved and disk unsaved icon in the header bar
- Update about dialog
- Change license to GNU GPLv3
- Begin plugin support
- Move preset selector to a drop-down called palette (icon palette)
- Add ability to apply the theme onlyfor dark theme or oy for light theme
- Automaticly use Adwaita-dark preset if the user prefered scheme is dark.
- Added Flatpak CI build
- Added issue template for bug and feature request
- `Main` branch is now protected by GitHub branch protection. The development is done on `next` branch
"""
),
comments=_(
"""
Gradience is a tool for customizing Libadwaita applications and the adw-gtk3 theme.
With Gradience you can:
- Change any color of Adwaita theme
- Apply Material 3 colors from wallaper
- Use other users presets
- Change advanced options with CSS
- Extend functionality using plugins
This app is written in Python and uses GTK 4 and libadwaita.
"""
),
)
about.present()
def update_custom_css_text(self, app_type, new_value):
self.custom_css[app_type] = new_value
self.reload_variables()
def create_action(self, name, callback, shortcuts=None):
"""Add an application action.
Args:
name: the name of the action
callback: the function to be called when the action is
activated
shortcuts: an optional list of accelerators
"""
action = Gio.SimpleAction.new(name, None)
action.connect("activate", callback)
self.add_action(action)
if shortcuts:
self.set_accels_for_action(f"app.{name}", shortcuts)
def create_stateful_action(
self, name, parameter_type, initial_state, callback, shortcuts=None
):
"""Add a stateful application action."""
action = Gio.SimpleAction.new_stateful(
name, parameter_type, initial_state)
action.connect("activate", callback)
self.add_action(action)
if shortcuts:
self.set_accels_for_action(f"app.{name}", shortcuts)
def setup_plugins(self):
buglog("setup plugins")
self.plugins_group = self.plugins_list.to_group()
self.win.content_plugins.add(self.plugins_group)
self.plugins_group = self.plugins_group
self.custom_css_group = GradienceCustomCSSGroup()
for app_type in settings_schema["custom_css_app_types"]:
self.custom_css[app_type] = ""
self.custom_css_group.load_custom_css(self.custom_css)
self.win.content_plugins.add(self.custom_css_group)
self.custom_css_group = self.custom_css_group
plugins_errors = self.plugins_list.validate()
self.props.active_window.update_errors(
self.global_errors + plugins_errors)
def reload_plugins(self):
self.plugins_list.reload()
buglog("reload plugins")
self.win.content_plugins.remove(self.plugins_group)
self.win.content_plugins.remove(self.custom_css_group)
self.plugins_group = self.plugins_list.to_group()
self.win.content_plugins.add(self.plugins_group)
self.plugins_group = self.plugins_group
self.custom_css_group = GradienceCustomCSSGroup()
for app_type in settings_schema["custom_css_app_types"]:
self.custom_css[app_type] = ""
self.custom_css_group.load_custom_css(self.custom_css)
self.win.content_plugins.add(self.custom_css_group)
self.custom_css_group = self.custom_css_group
plugins_errors = self.plugins_list.validate()
self.props.active_window.update_errors(
self.global_errors + plugins_errors)
@staticmethod
def show_adwaita_demo(*_args):
GLib.spawn_command_line_async(
'sh -c "/bin/adwaita-1-demo > /dev/null 2>&1"')
@staticmethod
def show_gtk4_demo(*_args):
GLib.spawn_command_line_async(
'sh -c "/bin/gtk4-demo > /dev/null 2>&1"')
@staticmethod
def show_gtk4_widget_factory(*_args):
GLib.spawn_command_line_async(
'sh -c "/bin/gtk4-widget-factory > /dev/null 2>&1"'
)
def main():
"""The application's entry point."""
app = GradienceApplication()
return app.run(sys.argv)