cosmic-applets/cosmic-panel-button/src/main.rs
2023-04-06 15:12:49 -04:00

123 lines
3.5 KiB
Rust

use cosmic::{
applet::CosmicAppletHelper,
iced::{
self,
wayland::InitialSurface,
Application,
},
iced_sctk::layout::Limits,
iced_style::application,
iced_native::window,
};
use freedesktop_desktop_entry::DesktopEntry;
use std::{env, fs, process::Command};
#[derive(Clone, Default)]
struct Desktop {
name: String,
icon: Option<String>,
exec: String,
}
struct Button {
desktop: Desktop,
}
#[derive(Debug, Clone)]
enum Msg {
Press,
}
impl iced::Application for Button {
type Message = Msg;
type Theme = cosmic::Theme;
type Executor = cosmic::SingleThreadExecutor;
type Flags = Desktop;
fn new(desktop: Desktop) -> (Self, iced::Command<Msg>) {
(Button { desktop }, iced::Command::none())
}
fn title(&self) -> String {
String::from("Button")
}
fn close_requested(&self, _id: window::Id) -> Msg {
unimplemented!()
}
fn style(&self) -> <Self::Theme as application::StyleSheet>::Style {
<Self::Theme as application::StyleSheet>::Style::Custom(|theme| application::Appearance {
background_color: iced::Color::from_rgba(0.0, 0.0, 0.0, 0.0),
text_color: theme.cosmic().on_bg_color().into(),
})
}
fn subscription(&self) -> iced::Subscription<Msg> {
iced::Subscription::none()
}
fn update(&mut self, message: Msg) -> iced::Command<Msg> {
match message {
Msg::Press => {
let _ = Command::new("sh").arg("-c").arg(&self.desktop.exec).spawn();
iced::Command::none()
}
}
}
fn view(&self, _id: window::Id) -> cosmic::Element<Msg> {
// TODO icon?
cosmic::widget::button(cosmic::theme::Button::Text)
.text(&self.desktop.name)
.on_press(Msg::Press)
.into()
}
}
pub fn main() -> iced::Result {
let id = env::args()
.skip(1)
.next()
.expect("Requires desktop file id as argument.");
let filename = format!("{id}.desktop");
let mut desktop = None;
for mut path in freedesktop_desktop_entry::default_paths() {
path.push(&filename);
if let Ok(bytes) = fs::read_to_string(&path) {
if let Ok(entry) = DesktopEntry::decode(&path, &bytes) {
desktop = Some(Desktop {
name: entry
.name(None)
.map(|x| x.to_string())
.expect(&format!("Desktop file '{filename}' doesn't have `Name`")),
icon: entry.icon().map(|x| x.to_string()),
exec: entry
.exec()
.map(|x| x.to_string())
.expect(&format!("Desktop file '{filename}' doesn't have `Exec`")),
});
break;
}
}
}
let desktop = desktop.expect(&format!(
"Failed to find valid desktop file '{filename}' in search paths"
));
let helper = CosmicAppletHelper::default();
let mut settings = iced::Settings {
flags: desktop,
..helper.window_settings()
};
match &mut settings.initial_surface {
InitialSurface::XdgWindow(s) => {
s.iced_settings.min_size = Some((1, 1));
s.iced_settings.max_size = None;
s.autosize = true;
s.size_limits = Limits::NONE.min_height(1).min_width(1);
}
_ => unreachable!(),
};
Button::run(settings)
}