[GTK4] How to show window above tray menu when clicked?

[eminfedar]

I want to develop an application which stays on dash as icon.

When a user click on the icon, I want to show a custom window but not just a menu.

For example Time & Weather app on dash is similiar to what I want, it has custom widgets in it:

How can I do this? How can I put an icon to dash and what is the correct way to design a window to popup on it? Thanks!

( I tried deprecated tray menu icons but it is deprecated and requires an extension to work. Also I want to show the app above the icon, but this cannot be achieved on Wayland because can’t set the coordinates of the window from GTK)

[mazharhussain]

The windows shown in the screenshots are not apps. They are part of GNOME Shell itself.

If you want to add something new to the panel, you’ll have to write a shell extension.