This is the settings app for Pop!_OS's new COSMIC desktop.

Pop!_OS

Last update: Dec 11, 2022

Related tags

Web programming cosmic-settings

Overview

cosmic-settings

This is the settings app for Pop!_OS's new COSMIC desktop. It is currently WIP and not ready for use, although if you want to run it and play around with the GUI, feel free!

Building

COSMIC Settings is built using Rust. It targets the latest stable version of Rust, and requires that GTK 4 be installed.

Install Pre-Requisites

# Install build tools and GTK-4
$ sudo apt install -y build-essential libgtk-4-dev
# Install Rust toolchain manager and Rust
# Note: you should always use rustup, as your package manager likely packages an older version!
$ curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
# Make the Rust toolchain available in the current environment
$ source $HOME/.cargo/env

Build

For a quick build, use cargo build (or cargo run to go straight to running it).

For an optimized release build, use cargo build --release (or cargo run --release to go straight to running it).

App Styling

Currently, the settings app is styled using SCSS files, as seen in the scss directory.

All .scss files in the directory (excluding those that start with _) are combined and compiled using the grass crate at build-time, and the resulting CSS is used to style the app.

License

COSMIC Settings is free software: you can redistribute it and/or modify it under the terms of version 3 of the GNU General Public License as published by the Free Software Foundation.

COSMIC Settings 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 https://www.gnu.org/licenses/.

Comments

Use the view macro for better readability
Out of curiosity, I had a look at the code and noticed a lot of the code like this: https://github.com/pop-os/cosmic-settings/blob/master/src/ui/section.rs#L17

Even when using cascade it doesn't look very nice (at least to me) and the structure of the UI is somewhat hidden. With Relm4's view macro (that's even independent from Relm4 itself with the upcoming release), the code I've linked (line 17 to 37) would look roughly like this:

view! { row = ListBoxSelectionRow::new(S::NAME.into()) { add_css_class: "nav-element", set_margin_all: 8, set_child: entry_box = Some(&gtk4::Box) { set_orientation: Orientation::Horizontal, set_spacing: 8, set_margin_all: 10, append: icon = &Image::from_icon_name(Some(S::ICON)) {}, append: label = Label { set_label: S::NAME } } } }
opened by AaronErhardt 5
Reduced search bar motion. Search button focuses cursor.
Search button no longer shifts to the right when clicked

Navigation bar is slightly taller, no longer changing height when the search bar is hidden/revealed.

Clicking the search button now focuses the cursor in the text box, saving precious milliseconds.
opened by rosettet 1
WiFi scanning improvements
Something like this should work effectively for handling GTK events in Rust without the need for much reference counting.

Uses an event loop in a glib::MainContext::default() spawned local future for handling events to the WiFi widget and managing all WiFi-related state.

Sends events using a tokio::sync::mpsc::UnboundedSender so it doesn't block widget signals

AP info stored in a SlotMap so they can be referenced by an ID across events.

Added dummy dialog to respond to configure signals

Convenience function task::spawn_local for spawning tasks locally on GLib.

task::spawn for spawning tasks in the background on Tokio.

enhancement
opened by mmstick 0
Is the use of `css-classes` intentional?

https://github.com/pop-os/cosmic-settings/blob/b3ebe0f61b4095dfb8e75c52d0feffb3c6da636d/src/widgets/search_bar.rs#L63

In GTK4, css-classes wipes out all other CSS classes on a widget when set, including the default ones. Depending on the widget this can completely break styling unless your styling substitutes it properly. Is this intentional?

If not, you should be using add_css_class()/remove_css_class().

opened by BrainBlasted 1
Cosmic Settings External Plugins
There should be some way to load external settings menus and such for the settings menus.

Several possible approaches:

embedded compositor. most complex option, but also the most versatile - each settings menu could be an individual executable, similar to the applets

shared library - could just dlopen+dlsym (libloading) a function that returns a GtkBox or something and some metadata about like where it goes in the menu and stuff. (see: abi_stable)

just build modules into the executable itself? least flexible, but the most "Rust-y" option.
opened by Absolucy 0

Owner

Pop!_OS

An Operating System by System76

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