[feat] Set GTK Application ID

[codifryed]

Description:

I noticed a few strange quirks with my application and tracked it down to the fact that the Tao library sets the application ID always to None for the GTK implementation and therefor ends up defaulting to the executable's name. (can be verified with wayland_debug=client and changing the binary name). Code reference example:

tao/src/platform_impl/linux/event_loop.rs

Line 193 in 9ecac81

let app = gtk::Application::new(None, gio::ApplicationFlags::empty());

That sometimes works out, but not always and can lead to conflicts. Additionally the application_id is used for several things depending your one's DE, and as such is recommended to be set per best practice specification:

Gnome/GTK: https://teams.pages.gitlab.gnome.org/Websites/developer.gnome.org/documentation/tutorials/application-id.html#application-id
Wayland: https://wayland.app/protocols/xdg-shell#xdg_toplevel:request:set_app_id
KDE reference: https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/1317

The GTK rust crate also sets the application_id in it's examples.

Admittedly there may be a good reason Tao does this, but it would be beneficial and helpful to be able to set a proper value.

Solution I'd like:

I would like to be able to set the GTK Application ID. For example perhaps as a new field in the tauri.conf.json or programmatically when instantiating the application, i.e.: app.set_app_id("org.gnome.ThisApp")

[amrbashir]

Thanks for bringing this to our attention, I will open a PR to expose an API in tao but tauri will probably just set it to the identifier defined in tauri.conf.json without exposing the API.

[codifryed]

Thanks @amrbashir!

Using the defined identifier in the conf I think is fine. I wasn't originally sure of that option because that's part of the BundleConfig and would then affect a non-bundle setting. Semantics. 😄
Happy to see this set in any regard.

[amrbashir]

Using the defined identifier in the conf I think is fine. I wasn't originally sure of that option because that's part of the BundleConfig and would then affect a non-bundle setting. Semantics. 😄 Happy to see this set in any regard.

In v2, the identifier was moved to the root of the tauri.conf.json because of things like this.

[codifryed]

Aha! 👍🏼 nice.