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//! Request access to specific devices such as camera, speakers or microphone.
//!
//! **Note** This portal doesn't work for sandboxed applications.
//!
//! ### Examples
//!
//! Access a [`Device`]
//!
//! ```rust,no_run
//! use ashpd::desktop::device::{Device, DeviceProxy};
//!
//! async fn run() -> ashpd::Result<()> {
//! let proxy = DeviceProxy::new().await?;
//! proxy.access_device(6879, &[Device::Speakers]).await?;
//! Ok(())
//! }
//! ```
use std::{fmt, str::FromStr};
use serde::{Deserialize, Serialize};
use zbus::zvariant::{SerializeDict, Type};
use super::{HandleToken, Request};
use crate::{Error, Pid, proxy::Proxy};
#[derive(SerializeDict, Type, Debug, Default)]
/// Specified options for a [`DeviceProxy::access_device`] request.
#[zvariant(signature = "dict")]
struct AccessDeviceOptions {
/// A string that will be used as the last element of the handle.
handle_token: HandleToken,
}
#[cfg_attr(feature = "glib", derive(glib::Enum))]
#[cfg_attr(feature = "glib", enum_type(name = "AshpdDevice"))]
#[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq, Type)]
#[zvariant(signature = "s")]
#[serde(rename_all = "lowercase")]
/// The possible device to request access to.
pub enum Device {
/// A microphone.
Microphone,
/// Speakers.
Speakers,
/// A Camera.
Camera,
}
impl fmt::Display for Device {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Self::Microphone => write!(f, "Microphone"),
Self::Speakers => write!(f, "Speakers"),
Self::Camera => write!(f, "Camera"),
}
}
}
impl AsRef<str> for Device {
fn as_ref(&self) -> &str {
match self {
Self::Microphone => "Microphone",
Self::Speakers => "Speakers",
Self::Camera => "Camera",
}
}
}
impl From<Device> for &'static str {
fn from(d: Device) -> Self {
match d {
Device::Microphone => "Microphone",
Device::Speakers => "Speakers",
Device::Camera => "Camera",
}
}
}
impl FromStr for Device {
type Err = Error;
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"Microphone" | "microphone" => Ok(Device::Microphone),
"Speakers" | "speakers" => Ok(Device::Speakers),
"Camera" | "camera" => Ok(Device::Camera),
_ => Err(Error::ParseError("Failed to parse device, invalid value")),
}
}
}
/// The interface lets services ask if an application should get access to
/// devices such as microphones, speakers or cameras.
///
/// Not a portal in the strict sense, since the API is not directly
/// accessible to applications inside the sandbox.
///
/// Wrapper of the DBus interface:
/// [`org.freedesktop.portal.Device`](https://flatpak.github.io/xdg-desktop-portal/docs/doc-org.freedesktop.portal.Device.html).
#[derive(Debug)]
#[doc(alias = "org.freedesktop.portal.Device")]
pub struct DeviceProxy(Proxy<'static>);
impl DeviceProxy {
/// Create a new instance of [`DeviceProxy`].
pub async fn new() -> Result<Self, Error> {
let proxy = Proxy::new_desktop("org.freedesktop.portal.Device").await?;
Ok(Self(proxy))
}
/// Create a new instance of [`DeviceProxy`].
pub async fn with_connection(connection: zbus::Connection) -> Result<Self, Error> {
let proxy =
Proxy::new_desktop_with_connection(connection, "org.freedesktop.portal.Device").await?;
Ok(Self(proxy))
}
/// Asks for access to a device.
///
/// # Arguments
///
/// * `pid` - The pid of the application on whose behalf the request is
/// made.
/// * `devices` - A list of devices to request access to.
///
/// *Note* Asking for multiple devices at the same time may or may not be
/// supported
///
/// # Specifications
///
/// See also [`AccessDevice`](https://flatpak.github.io/xdg-desktop-portal/docs/doc-org.freedesktop.portal.Device.html#org-freedesktop-portal-device-accessdevice).
#[doc(alias = "AccessDevice")]
pub async fn access_device(&self, pid: Pid, devices: &[Device]) -> Result<Request<()>, Error> {
let options = AccessDeviceOptions::default();
self.0
.empty_request(
&options.handle_token,
"AccessDevice",
&(pid, devices, &options),
)
.await
}
}
impl std::ops::Deref for DeviceProxy {
type Target = zbus::Proxy<'static>;
fn deref(&self) -> &Self::Target {
&self.0
}
}