roundabout,
created on Sunday, 17 August 2025, 20:31:04 (1755462664),
received on Sunday, 17 August 2025, 20:31:34 (1755462694)
Author identity: Vlad <vlad.muntoiu@gmail.com>
999274bbebf9fe9571eb5dfff72859e7df0f4ebb
applets/notifier/__init__.py
@@ -0,0 +1,144 @@
"""
D-Bus notifier applet for the Panorama panel.
Copyright 2025, roundabout-host.com <vlad@roundabout-host.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public Licence as published by
the Free Software Foundation, either version 3 of the Licence, 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 Licence for more details.
You should have received a copy of the GNU General Public Licence
along with this program. If not, see <https://www.gnu.org/licenses/>.
"""
from __future__ import annotations
import panorama_panel
import locale
from pathlib import Path
from pydbus import SessionBus
import gi
gi.require_version("Gtk", "4.0")
from gi.repository import Gtk, Gdk, GLib
module_directory = Path(__file__).resolve().parent
locale.bindtextdomain("panorama-app-menu", module_directory / "locale")
_ = lambda x: locale.dgettext("panorama-app-menu", x)
custom_css = """
.notification-button {
padding: 0;
}
"""
css_provider = Gtk.CssProvider()
css_provider.load_from_data(custom_css)
Gtk.StyleContext.add_provider_for_display(
Gdk.Display.get_default(),
css_provider,
Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION
)
class NotificationsService:
"""
<node>
<interface name="org.freedesktop.Notifications">
<method name="GetCapabilities">
<arg type="as" name="caps" direction="out"/>
</method>
<method name="GetServerInformation">
<arg type="s" name="name" direction="out"/>
<arg type="s" name="vendor" direction="out"/>
<arg type="s" name="version" direction="out"/>
<arg type="s" name="spec_version" direction="out"/>
</method>
<method name="Notify">
<arg type="s" name="app_name" direction="in"/>
<arg type="u" name="replaces_id" direction="in"/>
<arg type="s" name="app_icon" direction="in"/>
<arg type="s" name="summary" direction="in"/>
<arg type="s" name="body" direction="in"/>
<arg type="as" name="actions" direction="in"/>
<arg type="a{sv}" name="hints" direction="in"/>
<arg type="i" name="expire_timeout" direction="in"/>
<arg type="u" name="id" direction="out"/>
</method>
</interface>
</node>
"""
def __init__(self, applet: NotifierApplet):
self._next_id = 1
self.applet = applet
def GetCapabilities(self):
return ["body"]
def GetServerInformation(self):
# name, vendor, version, spec_version
return "panorama-panel", "panorama", "0.1", "1.2"
def Notify(self, *args):
notification_id = self._next_id
self._next_id += 1
self.applet.push_notification(*args)
return notification_id
class NotifierApplet(panorama_panel.Applet):
name = _("Notification centre")
description = _("Get desktop notifications")
def __init__(self, orientation=Gtk.Orientation.HORIZONTAL, config=None):
super().__init__(orientation=orientation, config=config)
if config is None:
config = {}
self.button = Gtk.MenuButton()
self.button.set_has_frame(False)
self.button.add_css_class("notification-button")
self.stack = Gtk.Stack()
self.button.set_child(self.stack)
self.notification_indicator = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL)
self.notification_indicator.append(Gtk.Image.new_from_icon_name(""))
self.stack.add_child(self.notification_indicator)
self.stack.set_transition_type(Gtk.StackTransitionType.SLIDE_UP_DOWN)
self.stack.set_transition_duration(500)
# TODO: support the other parameters; add a popover with a history
self.append(self.button)
self.service = NotificationsService(self)
bus = SessionBus()
self.publishing = bus.publish("org.freedesktop.Notifications", self.service)
def push_notification(self, app_name, replaces_id, app_icon, summary, body, actions, hints, expire_timeout):
new_child = Gtk.Label.new(_(summary))
self.stack.add_child(new_child)
self.stack.set_visible_child(new_child)
def remove_notification():
self.stack.set_visible_child(self.stack.get_visible_child().get_prev_sibling())
def remove_child():
self.stack.remove(new_child)
GLib.timeout_add(self.stack.get_transition_duration(), remove_child)
return False
if expire_timeout <= 0:
expire_timeout = 2500
GLib.timeout_add(expire_timeout, remove_notification)
# TODO: notify that it was closed
def get_config(self):
return {}
def shutdown(self):
self.publishing.unpublish()