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all: bring back xdg portals

This commit is contained in:
kossLAN 2026-06-06 19:16:45 -04:00
parent d920e554cf
commit e61f042d8b
No known key found for this signature in database
107 changed files with 14293 additions and 55 deletions

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@ -16,12 +16,13 @@ use {
},
ahash::AHashMap,
std::{
borrow::Cow,
borrow::{Borrow, Cow},
cell::{Cell, RefCell},
fmt::Debug,
future::Future,
marker::PhantomData,
mem,
ops::Deref,
pin::Pin,
rc::Rc,
task::{Context, Poll, Waker},
@ -174,6 +175,24 @@ pub struct DbusSocket {
headers: RefCell<VecStorage<(u8, Variant<'static>)>>,
run_toplevel: Rc<RunToplevel>,
signal_handlers: RefCell<AHashMap<(&'static str, &'static str), InterfaceSignalHandlers>>,
objects: CopyHashMap<Cow<'static, str>, Rc<DbusObjectData>>,
}
#[derive(Hash, Eq, PartialEq)]
struct MemberHandlerOwnedKey {
key: MemberHandlerKey<'static>,
}
#[derive(Hash, Eq, PartialEq)]
struct MemberHandlerKey<'a> {
interface: &'a str,
member: &'a str,
}
impl<'a> Borrow<MemberHandlerKey<'a>> for MemberHandlerOwnedKey {
fn borrow(&self) -> &MemberHandlerKey<'a> {
&self.key
}
}
const HDR_PATH: u8 = 1;
@ -197,6 +216,20 @@ const NO_AUTO_START: u8 = 0x2;
#[expect(dead_code)]
const ALLOW_INTERACTIVE_AUTHORIZATION: u8 = 0x4;
#[expect(dead_code)]
pub const DBUS_NAME_FLAG_ALLOW_REPLACEMENT: u32 = 0x1;
#[expect(dead_code)]
pub const DBUS_NAME_FLAG_REPLACE_EXISTING: u32 = 0x2;
pub const DBUS_NAME_FLAG_DO_NOT_QUEUE: u32 = 0x4;
pub const DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER: u32 = 1;
#[expect(dead_code)]
pub const DBUS_REQUEST_NAME_REPLY_IN_QUEUE: u32 = 2;
#[expect(dead_code)]
pub const DBUS_REQUEST_NAME_REPLY_EXISTS: u32 = 3;
#[expect(dead_code)]
pub const DBUS_REQUEST_NAME_REPLY_ALREADY_OWNER: u32 = 4;
pub const BUS_DEST: &str = "org.freedesktop.DBus";
pub const BUS_PATH: &str = "/org/freedesktop/DBus";
@ -399,3 +432,308 @@ struct InterfaceSignalHandlers {
unconditional: Option<Rc<dyn SignalHandlerApi>>,
conditional: AHashMap<String, Rc<dyn SignalHandlerApi>>,
}
struct DbusObjectData {
path: Cow<'static, str>,
methods: CopyHashMap<MemberHandlerOwnedKey, Rc<dyn MethodHandlerApi>>,
properties: CopyHashMap<MemberHandlerOwnedKey, Rc<dyn PropertyHandlerApi>>,
}
pub struct DbusObject {
socket: Rc<DbusSocket>,
data: Rc<DbusObjectData>,
}
impl Drop for DbusObject {
fn drop(&mut self) {
self.socket.objects.remove(&self.data.path);
}
}
impl DbusObject {
pub fn add_method<T, F>(&self, handler: F)
where
T: MethodCall<'static>,
F: for<'a> Fn(T::Generic<'a>, PendingReply<T::Reply>) + 'static,
{
let rhd = Rc::new(MethodHandlerData {
handler,
_phantom: Default::default(),
});
let key = MemberHandlerOwnedKey {
key: MemberHandlerKey {
interface: T::INTERFACE,
member: T::MEMBER,
},
};
self.data.methods.set(key, rhd);
}
pub fn set_property<T>(&self, value: Variant<'static>)
where
T: Property + 'static,
{
self.emit_signal(
&crate::wire_dbus::org::freedesktop::dbus::properties::PropertiesChanged {
interface_name: T::INTERFACE.into(),
changed_properties: Cow::Borrowed(&[DictEntry {
key: T::PROPERTY.into(),
value: borrow_variant(&value),
}]),
invalidated_properties: Default::default(),
},
);
let phd = Rc::new(PropertyHandlerData::<T> {
data: value,
_phantom: Default::default(),
});
let key = MemberHandlerOwnedKey {
key: MemberHandlerKey {
interface: T::INTERFACE,
member: T::PROPERTY,
},
};
self.data.properties.set(key, phd);
}
pub fn emit_signal<'a, T: Signal<'a>>(&self, signal: &T) {
self.socket.emit_signal(&self.data.path, signal);
}
pub fn path(&self) -> &str {
&self.data.path
}
}
trait PropertyHandlerApi {
fn interface(&self) -> &'static str;
fn member(&self) -> &'static str;
fn value<'a>(&'a self) -> Variant<'a>;
}
struct PropertyHandlerData<T> {
data: Variant<'static>,
_phantom: PhantomData<T>,
}
impl<T> PropertyHandlerApi for PropertyHandlerData<T>
where
T: Property,
{
fn interface(&self) -> &'static str {
T::INTERFACE
}
fn member(&self) -> &'static str {
T::PROPERTY
}
fn value<'a>(&'a self) -> Variant<'a> {
borrow_variant(&self.data)
}
}
fn borrow_variant<'a>(value: &'a Variant<'static>) -> Variant<'a> {
match value {
Variant::U8(v) => Variant::U8(*v),
Variant::Bool(v) => Variant::Bool(*v),
Variant::I16(v) => Variant::I16(*v),
Variant::U16(v) => Variant::U16(*v),
Variant::I32(v) => Variant::I32(*v),
Variant::U32(v) => Variant::U32(*v),
Variant::I64(v) => Variant::I64(*v),
Variant::U64(v) => Variant::U64(*v),
Variant::F64(v) => Variant::F64(*v),
Variant::String(v) => Variant::String(Cow::Borrowed(v.as_ref())),
Variant::ObjectPath(v) => Variant::ObjectPath(ObjectPath(Cow::Borrowed(v.0.as_ref()))),
Variant::Signature(v) => Variant::Signature(Signature(Cow::Borrowed(v.0.as_ref()))),
Variant::Variant(v) => Variant::Variant(Box::new(borrow_variant(v))),
Variant::Fd(v) => Variant::Fd(v.clone()),
Variant::Array(ty, values) => {
Variant::Array(ty.clone(), values.iter().map(borrow_variant).collect())
}
Variant::DictEntry(k, v) => {
Variant::DictEntry(Box::new(borrow_variant(k)), Box::new(borrow_variant(v)))
}
Variant::Struct(values) => Variant::Struct(values.iter().map(borrow_variant).collect()),
}
}
pub struct PendingReply<T> {
reply_expected: bool,
socket: Rc<DbusSocket>,
destination: String,
serial: u32,
_phantom: PhantomData<T>,
}
impl<T> PendingReply<T> {
#[expect(dead_code)]
pub fn reply_expected(&self) -> bool {
self.reply_expected
}
pub fn err(&self, msg: &str) {
if self.reply_expected {
self.socket.send_error(&self.destination, self.serial, msg);
}
}
}
impl<T> PendingReply<T>
where
T: Message<'static>,
{
pub fn ok<'a>(&self, msg: &T::Generic<'a>) {
if self.reply_expected {
self.socket.send_reply(&self.destination, self.serial, msg);
}
}
#[expect(dead_code)]
pub fn complete<'a>(&self, res: Result<&T::Generic<'a>, &str>) {
match res {
Ok(m) => self.ok(m),
Err(e) => self.err(e),
}
}
}
trait MethodHandlerApi {
fn signature(&self) -> &'static str;
fn handle(
&self,
object: &DbusObjectData,
socket: &Rc<DbusSocket>,
dest: &str,
serial: u32,
reply_expected: bool,
parser: &mut Parser,
) -> Result<(), DbusError>;
}
struct MethodHandlerData<T, F> {
handler: F,
_phantom: PhantomData<T>,
}
impl<T, F> MethodHandlerApi for MethodHandlerData<T, F>
where
T: MethodCall<'static>,
F: for<'a> Fn(T::Generic<'a>, PendingReply<T::Reply>) + 'static,
{
fn signature(&self) -> &'static str {
T::SIGNATURE
}
fn handle<'a>(
&self,
_object: &DbusObjectData,
socket: &Rc<DbusSocket>,
dest: &str,
serial: u32,
reply_expected: bool,
parser: &mut Parser<'a>,
) -> Result<(), DbusError> {
let msg = T::Generic::<'a>::unmarshal(parser)?;
let pr = PendingReply {
reply_expected,
socket: socket.clone(),
destination: dest.to_string(),
serial,
_phantom: Default::default(),
};
(self.handler)(msg, pr);
Ok(())
}
}
struct PropertyGetHandlerProxy;
impl MethodHandlerApi for PropertyGetHandlerProxy {
fn signature(&self) -> &'static str {
crate::wire_dbus::org::freedesktop::dbus::properties::Get::SIGNATURE
}
fn handle<'a>(
&self,
object: &DbusObjectData,
socket: &Rc<DbusSocket>,
dest: &str,
serial: u32,
reply_expected: bool,
parser: &mut Parser<'a>,
) -> Result<(), DbusError> {
if !reply_expected {
return Ok(());
}
let msg = crate::wire_dbus::org::freedesktop::dbus::properties::Get::unmarshal(parser)?;
let key = MemberHandlerKey {
interface: msg.interface_name.deref(),
member: msg.property_name.deref(),
};
match object.properties.get(&key) {
Some(h) => socket.send_reply(
dest,
serial,
&crate::wire_dbus::org::freedesktop::dbus::properties::GetReply {
value: h.value(),
},
),
_ => socket.send_error(dest, serial, "Property does not exist"),
};
Ok(())
}
}
struct PropertyGetAllHandlerProxy;
impl MethodHandlerApi for PropertyGetAllHandlerProxy {
fn signature(&self) -> &'static str {
crate::wire_dbus::org::freedesktop::dbus::properties::GetAll::SIGNATURE
}
fn handle<'a>(
&self,
object: &DbusObjectData,
socket: &Rc<DbusSocket>,
dest: &str,
serial: u32,
reply_expected: bool,
parser: &mut Parser<'a>,
) -> Result<(), DbusError> {
if !reply_expected {
return Ok(());
}
let msg = crate::wire_dbus::org::freedesktop::dbus::properties::GetAll::unmarshal(parser)?;
let all_props = object.properties.lock();
let mut props = vec![];
for property in all_props.values() {
if property.interface() == msg.interface_name {
props.push(DictEntry {
key: property.member().into(),
value: property.value(),
});
}
}
socket.send_reply(
dest,
serial,
&crate::wire_dbus::org::freedesktop::dbus::properties::GetAllReply {
props: props.into(),
},
);
Ok(())
}
}
pub mod prelude {
pub use {
super::{
DbusError, DbusType, Formatter, Message, MethodCall, Parser, Property, Signal,
types::{Bool, DictEntry, ObjectPath, Variant},
},
std::{borrow::Cow, rc::Rc},
uapi::OwnedFd,
};
}