cosmic-applets/src/status_menu.rs
2022-01-21 16:38:58 -05:00

354 lines
11 KiB
Rust

use cascade::cascade;
use futures::StreamExt;
use gtk4::{
gdk_pixbuf,
glib::{self, clone},
prelude::*,
subclass::prelude::*,
};
use std::{cell::RefCell, collections::HashMap, io};
use zbus::dbus_proxy;
use zvariant::OwnedValue;
use crate::deref_cell::DerefCell;
use crate::popover_container::PopoverContainer;
struct Menu {
box_: gtk4::Box,
children: Vec<i32>,
}
#[derive(Default)]
pub struct StatusMenuInner {
button: DerefCell<gtk4::ToggleButton>,
popover_container: DerefCell<PopoverContainer>,
vbox: DerefCell<gtk4::Box>,
item: DerefCell<StatusNotifierItemProxy<'static>>,
dbus_menu: DerefCell<DBusMenuProxy<'static>>,
menus: RefCell<HashMap<i32, Menu>>,
}
#[glib::object_subclass]
impl ObjectSubclass for StatusMenuInner {
const NAME: &'static str = "S76StatusMenu";
type ParentType = gtk4::Widget;
type Type = StatusMenu;
fn class_init(klass: &mut Self::Class) {
klass.set_layout_manager_type::<gtk4::BinLayout>();
}
}
impl ObjectImpl for StatusMenuInner {
fn constructed(&self, obj: &StatusMenu) {
let vbox = cascade! {
gtk4::Box::new(gtk4::Orientation::Vertical, 0);
};
let button = cascade! {
gtk4::ToggleButton::new();
..set_has_frame(false);
};
let popover_container = cascade! {
PopoverContainer::new(&button);
..set_parent(obj);
..popover().set_child(Some(&vbox));
..popover().bind_property("visible", &button, "active").flags(glib::BindingFlags::BIDIRECTIONAL).build();
};
self.button.set(button);
self.popover_container.set(popover_container);
self.vbox.set(vbox);
}
fn dispose(&self, _obj: &StatusMenu) {
self.button.unparent();
}
}
impl WidgetImpl for StatusMenuInner {}
glib::wrapper! {
pub struct StatusMenu(ObjectSubclass<StatusMenuInner>)
@extends gtk4::Widget;
}
impl StatusMenu {
pub async fn new(name: &str) -> zbus::Result<Self> {
let (dest, path) = if let Some(idx) = name.find('/') {
(&name[..idx], &name[idx..])
} else {
(name, "/StatusNotifierItem")
};
let connection = zbus::Connection::session().await?;
let item = StatusNotifierItemProxy::builder(&connection)
.destination(dest.to_string())?
.path(path.to_string())?
.build()
.await?;
let obj = glib::Object::new::<Self>(&[]).unwrap();
let icon_name = item.icon_name().await?;
obj.inner().button.set_icon_name(&icon_name);
let menu = item.menu().await?;
let menu = DBusMenuProxy::builder(&connection)
.destination(dest.to_string())?
.path(menu)?
.build()
.await?;
let layout = menu.get_layout(0, -1, &[]).await?.1;
let mut layout_updated_stream = menu.receive_layout_updated().await?;
glib::MainContext::default().spawn_local(clone!(@strong obj => async move {
while let Some(evt) = layout_updated_stream.next().await {
let args = match evt.args() {
Ok(args) => args,
Err(_) => { continue; },
};
obj.layout_updated(args.revision, args.parent);
}
}));
obj.inner().item.set(item);
obj.inner().dbus_menu.set(menu);
println!("{:#?}", layout);
obj.populate_menu(&obj.inner().vbox, &layout);
Ok(obj)
}
fn inner(&self) -> &StatusMenuInner {
StatusMenuInner::from_instance(self)
}
fn layout_updated(&self, _revision: u32, parent: i32) {
let mut menus = self.inner().menus.borrow_mut();
if let Some(Menu { box_, children }) = menus.remove(&parent) {
let mut next_child = box_.first_child();
while let Some(child) = next_child {
next_child = child.next_sibling();
box_.remove(&child);
}
fn remove_child_menus(menus: &mut HashMap<i32, Menu>, children: Vec<i32>) {
for i in children {
if let Some(menu) = menus.remove(&i) {
remove_child_menus(menus, menu.children);
}
}
}
remove_child_menus(&mut menus, children);
glib::MainContext::default().spawn_local(clone!(@weak self as self_ => async move {
match self_.inner().dbus_menu.get_layout(parent, -1, &[]).await {
Ok((_, layout)) => self_.populate_menu(&box_, &layout),
Err(err) => eprintln!("Failed to call 'GetLayout': {}", err),
}
}));
}
}
fn populate_menu(&self, box_: &gtk4::Box, layout: &Layout) {
let mut children = Vec::new();
for i in layout.children() {
children.push(i.id());
if i.type_().as_deref() == Some("separator") {
let separator = cascade! {
gtk4::Separator::new(gtk4::Orientation::Horizontal);
..set_visible(i.visible());
};
box_.append(&separator);
} else if let Some(label) = i.label() {
let mut label = label.to_string();
if let Some(toggle_state) = i.toggle_state() {
if toggle_state != 0 {
label = format!("{}", label);
}
}
let label_widget = cascade! {
gtk4::Label::new(Some(&label));
..set_halign(gtk4::Align::Start);
..set_hexpand(true);
..set_use_underline(true);
};
let hbox = cascade! {
gtk4::Box::new(gtk4::Orientation::Horizontal, 0);
..append(&label_widget);
};
if let Some(icon_data) = i.icon_data() {
let icon_data = io::Cursor::new(icon_data.to_vec());
let pixbuf = gdk_pixbuf::Pixbuf::from_read(icon_data).unwrap(); // XXX unwrap
let image = cascade! {
gtk4::Image::from_pixbuf(Some(&pixbuf));
..set_halign(gtk4::Align::End);
};
hbox.append(&image);
}
let id = i.id();
let close_on_click = i.children_display().as_deref() != Some("submenu");
let button = cascade! {
gtk4::Button::new();
..set_child(Some(&hbox));
..style_context().add_class("flat");
..set_visible(i.visible());
..set_sensitive(i.enabled());
..connect_clicked(clone!(@weak self as self_ => move |_| {
// XXX data, timestamp
if close_on_click {
self_.inner().popover_container.popdown();
}
glib::MainContext::default().spawn_local(clone!(@strong self_ => async move {
let _ = self_.inner().dbus_menu.event(id, "clicked", &0.into(), 0).await;
}));
}));
};
box_.append(&button);
if i.children_display().as_deref() == Some("submenu") {
let vbox = cascade! {
gtk4::Box::new(gtk4::Orientation::Vertical, 0);
};
let revealer = cascade! {
gtk4::Revealer::new();
..set_child(Some(&vbox));
};
self.populate_menu(&vbox, &i);
box_.append(&revealer);
button.connect_clicked(move |_| {
revealer.set_reveal_child(!revealer.reveals_child());
});
}
}
}
self.inner().menus.borrow_mut().insert(
layout.id(),
Menu {
box_: box_.clone(),
children,
},
);
}
}
#[dbus_proxy(interface = "org.kde.StatusNotifierItem")]
trait StatusNotifierItem {
#[dbus_proxy(property)]
fn icon_name(&self) -> zbus::Result<String>;
#[dbus_proxy(property)]
fn menu(&self) -> zbus::Result<zvariant::OwnedObjectPath>;
}
#[derive(Debug)]
pub struct Layout(i32, LayoutProps, Vec<Layout>);
impl<'a> serde::Deserialize<'a> for Layout {
fn deserialize<D: serde::Deserializer<'a>>(deserializer: D) -> Result<Self, D::Error> {
let (id, props, children) =
<(i32, LayoutProps, Vec<(zvariant::Signature<'_>, Self)>)>::deserialize(deserializer)?;
Ok(Self(id, props, children.into_iter().map(|x| x.1).collect()))
}
}
impl zvariant::Type for Layout {
fn signature() -> zvariant::Signature<'static> {
zvariant::Signature::try_from("(ia{sv}av)").unwrap()
}
}
#[derive(Debug, zvariant::DeserializeDict, zvariant::Type)]
pub struct LayoutProps {
#[zvariant(rename = "accessible-desc")]
accessible_desc: Option<String>,
#[zvariant(rename = "children-display")]
children_display: Option<String>,
label: Option<String>,
enabled: Option<bool>,
visible: Option<bool>,
#[zvariant(rename = "type")]
type_: Option<String>,
#[zvariant(rename = "toggle-type")]
toggle_type: Option<String>,
#[zvariant(rename = "toggle-state")]
toggle_state: Option<i32>,
#[zvariant(rename = "icon-data")]
icon_data: Option<Vec<u8>>,
}
#[allow(dead_code)]
impl Layout {
fn id(&self) -> i32 {
self.0
}
fn children(&self) -> &[Self] {
&self.2
}
fn accessible_desc(&self) -> Option<&str> {
self.1.accessible_desc.as_deref()
}
fn children_display(&self) -> Option<&str> {
self.1.children_display.as_deref()
}
fn label(&self) -> Option<&str> {
self.1.label.as_deref()
}
fn enabled(&self) -> bool {
self.1.enabled.unwrap_or(true)
}
fn visible(&self) -> bool {
self.1.visible.unwrap_or(true)
}
fn type_(&self) -> Option<&str> {
self.1.type_.as_deref()
}
fn toggle_type(&self) -> Option<&str> {
self.1.toggle_type.as_deref()
}
fn toggle_state(&self) -> Option<i32> {
self.1.toggle_state
}
fn icon_data(&self) -> Option<&[u8]> {
self.1.icon_data.as_deref()
}
}
#[dbus_proxy(interface = "com.canonical.dbusmenu")]
trait DBusMenu {
fn get_layout(
&self,
parent_id: i32,
recursion_depth: i32,
property_names: &[&str],
) -> zbus::Result<(u32, Layout)>;
fn event(&self, id: i32, event_id: &str, data: &OwnedValue, timestamp: u32)
-> zbus::Result<()>;
#[dbus_proxy(signal)]
fn layout_updated(&self, revision: u32, parent: i32) -> zbus::Result<()>;
}