GNOME 48 notification grouping support (unexpected behaviour)

[bl4ckswordsman]

Description

What is the bug?

Due to the current implementation of notifications sent when copying something, GNOME notification grouping doesn't work.

Problem Explanation

The lack of notification grouping support makes the process of dismissing the Pano notifications tedious, when Do Not Disturb mode is on.
From what I can see, this stems from the fact that in the current implementation in the ui.ts file, a new MessageTraySource is created every single time the notify function is called. To make use of GNOME 48's notification grouping, one would need to create a single MessageTraySource instance when the extension is enabled, and reuse it.

Expected Behavior

• Pano notifications should be grouped in one expandable group that allows you to dismiss all notifications at once, they shouldn't be separate

Reprodution

How one can find the bug?

Steps To Reproduce

1. In GNOME 48, enable Do Not Disturb
2. Copy a few pieces of text
3. Open the notification tray and see how the Pano notifications aren't grouped

Details

Mark with [ ] all that applies:

It happens with any application?

• Yes, it applies to any application.
• No. Only with the following applications:
  • VSCode
• It works with the following applications that I have tried:
  • Fill in a list with any application that applies

It happens only on one computer?

• I don't know.
• No. I have tried it on more than one computer.

It happens only with some specific gnome configuration?

• I don't think that the configuration matters.
• Yes. Only if the following config is set up:
  • Fill in a list with any configuration tha applies.

It happens only with some specific extension installed?

• I don't think that the installed extensions affect the bug/behavior.
• Yes. Only if the following gnome extension is installed:
  • Fill in a list with any extension tha applies.
  • Fill in also any detail about the extensions that applies.

Diagnostics

Under what conditions does it happen?

Fill in all information that applies:

Environment

• GNOME Shell version: 48
• Distro: Ubuntu
• Distro version: 25.04

Screenshots

If applicable, add screenshots to help explain your problem:

Application Details

What is pasted, if applicable

...

Application Version

Version: 1003 (v23alpha5)

Output and Logs

Gnome

Command: journalctl --since=now --follow /usr/bin/gnome-shell

$ journalctl --since=now --follow /usr/bin/gnome-shell
...

Pano Configuration

Command: dconf dump /org/gnome/shell/extensions/pano/

$ dconf dump /org/gnome/shell/extensions/pano/
...

[/]
global-shortcut=['v']
history-length=15
icon-pack=uint32 1
is-in-incognito=false

Enabled Extensions

Command: dconf read /org/gnome/shell/enabled-extensions | tr ' ' '\n'

$ dconf read /org/gnome/shell/enabled-extensions | tr ' ' '\n'
...