feat: add mpris2-zbus for org.mpris.MediaPlayer2

mpris2/src/error.rs

@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: MPL-2.0
+
+#[derive(Debug, thiserror::Error)]
+pub enum Error {
+	/// Invalid enum variant when converting from String.
+	#[error("Invalid enum variant: {got}, expected something in {expected:?}")]
+	InvalidEnum {
+		got: String,
+		expected: &'static [&'static str],
+	},
+
+	#[error("Tried to extract a {wanted}, but it was actually {actual}")]
+	IncorrectVariant {
+		wanted: &'static str,
+		actual: &'static str,
+	},
+
+	#[error("Tried to convert Value::{wanted}, but it was got {actual:?}")]
+	IncorrectValue {
+		wanted: &'static str,
+		actual: zvariant::OwnedValue,
+	},
+
+	/// A zbus error.
+	#[error("zbus error: {0}")]
+	Zbus(zbus::Error),
+
+	/// A zbus::fdo error.
+	#[error("zbus fdo error: {0}")]
+	Fdo(zbus::fdo::Error),
+}
+
+impl From<zbus::fdo::Error> for Error {
+	fn from(err: zbus::fdo::Error) -> Self {
+		match err {
+			zbus::fdo::Error::ZBus(err) => Self::Zbus(err),
+			_ => Self::Fdo(err),
+		}
+	}
+}
+
+impl From<zbus::Error> for Error {
+	fn from(err: zbus::Error) -> Self {
+		match err {
+			zbus::Error::FDO(err) => Self::Fdo(*err),
+			_ => Self::Zbus(err),
+		}
+	}
+}
+
+pub type Result<T> = std::result::Result<T, Error>;