cosmic-applets/cosmic-applet-audio/src/main.rs
2022-12-23 16:14:55 -05:00

373 lines
12 KiB
Rust

use cosmic::iced::wayland::SurfaceIdWrapper;
use cosmic::iced::widget;
use iced::widget::Space;
use cosmic::widget::{icon, toggler, horizontal_rule};
use cosmic::applet::CosmicAppletHelper;
use cosmic::Renderer;
use cosmic::iced_native::window::Settings;
use cosmic::iced_style::application::{self, Appearance};
use cosmic::iced_style::svg;
use cosmic::theme::{self, Svg};
use cosmic::{iced_style, settings, Element, Theme};
use cosmic::iced::{
self,
executor,
widget::{button, column, row, text, slider},
window, Alignment, Application, Command, Length, Subscription,
};
use iced::wayland::popup::{destroy_popup, get_popup};
use iced::Color;
use iced::widget::container;
mod pulse;
use crate::pulse::DeviceInfo;
use libpulse_binding::volume::{Volume, VolumeLinear};
pub fn main() -> cosmic::iced::Result {
let helper = CosmicAppletHelper::default();
Audio::run(helper.window_settings())
}
#[derive(Default)]
struct Audio {
is_open: IsOpen,
current_output: Option<DeviceInfo>,
current_input: Option<DeviceInfo>,
outputs: Vec<DeviceInfo>,
inputs: Vec<DeviceInfo>,
pulse_state: PulseState,
applet_helper: CosmicAppletHelper,
icon_name: String,
theme: Theme,
popup: Option<window::Id>,
id_ctr: u32,
}
#[derive(Debug, PartialEq, Eq)]
enum IsOpen {
None,
Output,
Input,
}
#[derive(Debug, Clone)]
enum Message {
SetOutputVolume(f64),
SetInputVolume(f64),
OutputToggle,
InputToggle,
OutputChanged(String),
InputChanged(String),
Pulse(pulse::Event),
Ignore,
TogglePopup,
}
impl Application for Audio {
type Message = Message;
type Theme = Theme;
type Executor = executor::Default;
type Flags = ();
fn new(_flags: ()) -> (Audio, Command<Message>) {
(
Audio {
is_open: IsOpen::None,
current_output: None,
current_input: None,
outputs: vec![],
inputs: vec![],
pulse_state: PulseState::Disconnected,
icon_name: "audio-volume-high-symbolic".to_string(),
..Default::default()
},
Command::none(),
)
}
fn title(&self) -> String {
String::from("Audio")
}
fn theme(&self) -> Theme {
self.theme
}
fn close_requested(&self, _id: SurfaceIdWrapper) -> Self::Message {
Message::Ignore
}
fn style(&self) -> <Self::Theme as application::StyleSheet>::Style {
<Self::Theme as application::StyleSheet>::Style::Custom(|theme| Appearance {
background_color: Color::from_rgba(0.0, 0.0, 0.0, 0.0),
text_color: theme.cosmic().on_bg_color().into(),
})
}
fn update(&mut self, message: Message) -> Command<Message> {
match message {
Message::TogglePopup => {
if let Some(p) = self.popup.take() {
return destroy_popup(p);
} else {
self.id_ctr += 1;
let new_id = window::Id::new(self.id_ctr);
self.popup.replace(new_id);
let popup_settings =
self.applet_helper.get_popup_settings(window::Id::new(0), new_id, (400, 300), None, None);
return get_popup(popup_settings);
}
}
Message::SetOutputVolume(vol) => {
self.current_output.as_mut().map(|o| {
o.volume
.set(o.volume.len(), VolumeLinear(vol / 100.0).into())
});
if let PulseState::Connected(connection) = &mut self.pulse_state {
if let Some(device) = &self.current_output {
if let Some(name) = &device.name {
connection.send(pulse::Message::SetSinkVolumeByName(
name.clone().to_string(),
device.volume,
))
}
}
}
}
Message::SetInputVolume(vol) => {
self.current_input.as_mut().map(|i| {
i.volume
.set(i.volume.len(), VolumeLinear(vol / 100.0).into())
});
if let PulseState::Connected(connection) = &mut self.pulse_state {
if let Some(device) = &self.current_input {
if let Some(name) = &device.name {
println!("increasing volume of {}", name);
connection.send(pulse::Message::SetSourceVolumeByName(
name.clone().to_string(),
device.volume,
))
}
}
}
}
Message::OutputChanged(val) => println!("changed output {}", val),
Message::InputChanged(val) => println!("changed input {}", val),
Message::OutputToggle => {
self.is_open = if self.is_open == IsOpen::Output {
IsOpen::None
} else {
IsOpen::Output
}
}
Message::InputToggle => {
self.is_open = if self.is_open == IsOpen::Input {
IsOpen::None
} else {
IsOpen::Input
}
}
Message::Pulse(event) => match event {
pulse::Event::Connected(mut connection) => {
connection.send(pulse::Message::GetSinks);
connection.send(pulse::Message::GetSources);
connection.send(pulse::Message::GetDefaultSink);
connection.send(pulse::Message::GetDefaultSource);
self.pulse_state = PulseState::Connected(connection);
}
pulse::Event::MessageReceived(msg) => {
match msg {
// This is where we match messages from the subscription to app state
pulse::Message::SetSinks(sinks) => self.outputs = sinks,
pulse::Message::SetSources(sources) => {
self.inputs = sources
.into_iter()
.filter(|source| {
!source
.name
.as_ref()
.unwrap_or(&String::from("Generic"))
.contains("monitor")
})
.collect()
}
pulse::Message::SetDefaultSink(sink) => {
self.current_output = Some(sink);
}
pulse::Message::SetDefaultSource(source) => {
self.current_input = Some(source)
}
pulse::Message::Disconnected => {
panic!("Subscriton error handling is bad. This should never happen.")
}
_ => {
println!("Received misc message")
}
}
}
// TODO: view() should gray out buttons/slider when state is disconnected
pulse::Event::Disconnected => {
println!("setting state to disconnected");
self.pulse_state = PulseState::Disconnected
}
},
Message::Ignore => {},
};
Command::none()
}
fn subscription(&self) -> Subscription<Message> {
pulse::connect().map(Message::Pulse)
}
fn view(&self, id: SurfaceIdWrapper) -> Element<Message> {
match id {
SurfaceIdWrapper::LayerSurface(_) => unimplemented!(),
SurfaceIdWrapper::Window(_) => self.applet_helper.icon_button(
&self.icon_name,
)
.on_press(Message::TogglePopup)
.into(),
SurfaceIdWrapper::Popup(_) => {
let out_f64 = VolumeLinear::from(
self.current_output
.as_ref()
.map(|o| o.volume.avg())
.unwrap_or(Volume::default()),
)
.0 * 100.0;
let in_f64 = VolumeLinear::from(
self.current_input
.as_ref()
.map(|o| o.volume.avg())
.unwrap_or(Volume::default()),
)
.0 * 100.0;
let sink = row![
icon("status/audio-volume-high-symbolic", 24),
slider(0.0..=100.0, out_f64, Message::SetOutputVolume),
text(format!("{}%", out_f64.round()))
]
.spacing(10)
.padding(10);
let source = row![
icon("devices/audio-input-microphone-symbolic", 24),
slider(0.0..=100.0, in_f64, Message::SetInputVolume),
text(format!("{}%", in_f64.round()))
]
.spacing(10)
.padding(10);
// TODO change these from helper functions to iced components for improved reusability
let output_drop = revealer(
self.is_open == IsOpen::Output,
"Output",
match &self.current_output {
Some(output) => pretty_name(output.description.clone()),
None => String::from("No device selected"),
},
self.outputs
.clone()
.into_iter()
.map(|output| pretty_name(output.description))
.collect(),
Message::OutputToggle,
Message::OutputChanged(String::from("test")),
);
let input_drop = revealer(
self.is_open == IsOpen::Input,
"Input",
match &self.current_input {
Some(input) => pretty_name(input.description.clone()),
None => String::from("No device selected"),
},
self.inputs
.clone()
.into_iter()
.map(|input| pretty_name(input.description))
.collect(),
Message::InputToggle,
Message::InputChanged(String::from("test")),
);
let content = column![]
.align_items(Alignment::Start)
.spacing(20)
.push(sink)
.push(source)
.push(spacer())
.push(output_drop)
.push(input_drop);
self.applet_helper.popup_container(
container(content)
).into()
}
}
}
}
// TODO: Make this a themeable widget like the mock-ups
fn spacer() -> iced::widget::Space {
Space::with_width(Length::Fill)
}
fn revealer<'a>(
open: bool,
title: &'a str,
selected: String,
options: Vec<String>,
toggle: Message,
_change: Message,
) -> widget::Column<'a, Message, Renderer> {
if open {
options.iter().fold(
column![revealer_head(open, title, selected, toggle)].width(Length::Fill),
|col, device| col.push(text(device)),
)
} else {
column![revealer_head(open, title, selected, toggle)]
}
}
fn revealer_head<'a>(
_open: bool,
title: &'a str,
selected: String,
toggle: Message,
) -> widget::Button<Message, Renderer> {
button(row![row![title].width(Length::Fill), text(selected)])
.width(Length::Fill)
.on_press(toggle)
}
fn pretty_name(name: Option<String>) -> String {
match name {
Some(n) => n,
None => String::from("Generic"),
}
}
enum PulseState {
Disconnected,
Connected(pulse::Connection),
}
impl Default for PulseState {
fn default() -> Self {
Self::Disconnected
}
}
impl Default for IsOpen {
fn default() -> Self {
IsOpen::None
}
}