// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT

use crate::AsyncResult;
use crate::Cancellable;
use crate::DriveStartFlags;
use crate::DriveStartStopType;
use crate::Icon;
use crate::MountOperation;
use crate::MountUnmountFlags;
use crate::Volume;
use glib::object::Cast;
use glib::object::IsA;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use std::boxed::Box as Box_;
use std::fmt;
use std::mem::transmute;
use std::pin::Pin;
use std::ptr;

glib::wrapper! {
    /// [`Drive`][crate::Drive] - this represent a piece of hardware connected to the machine.
    /// It's generally only created for removable hardware or hardware with
    /// removable media.
    ///
    /// [`Drive`][crate::Drive] is a container class for [`Volume`][crate::Volume] objects that stem from
    /// the same piece of media. As such, [`Drive`][crate::Drive] abstracts a drive with
    /// (or without) removable media and provides operations for querying
    /// whether media is available, determining whether media change is
    /// automatically detected and ejecting the media.
    ///
    /// If the [`Drive`][crate::Drive] reports that media isn't automatically detected, one
    /// can poll for media; typically one should not do this periodically
    /// as a poll for media operation is potentially expensive and may
    /// spin up the drive creating noise.
    ///
    /// [`Drive`][crate::Drive] supports starting and stopping drives with authentication
    /// support for the former. This can be used to support a diverse set
    /// of use cases including connecting/disconnecting iSCSI devices,
    /// powering down external disk enclosures and starting/stopping
    /// multi-disk devices such as RAID devices. Note that the actual
    /// semantics and side-effects of starting/stopping a [`Drive`][crate::Drive] may vary
    /// according to implementation. To choose the correct verbs in e.g. a
    /// file manager, use [`DriveExt::start_stop_type()`][crate::prelude::DriveExt::start_stop_type()].
    ///
    /// For porting from GnomeVFS note that there is no equivalent of
    /// [`Drive`][crate::Drive] in that API.
    ///
    /// # Implements
    ///
    /// [`DriveExt`][trait@crate::prelude::DriveExt]
    #[doc(alias = "GDrive")]
    pub struct Drive(Interface<ffi::GDrive, ffi::GDriveIface>);

    match fn {
        type_ => || ffi::g_drive_get_type(),
    }
}

impl Drive {
    pub const NONE: Option<&'static Drive> = None;
}

/// Trait containing all [`struct@Drive`] methods.
///
/// # Implementors
///
/// [`Drive`][struct@crate::Drive]
pub trait DriveExt: 'static {
    /// Checks if a drive can be ejected.
    ///
    /// # Returns
    ///
    /// [`true`] if the `self` can be ejected, [`false`] otherwise.
    #[doc(alias = "g_drive_can_eject")]
    fn can_eject(&self) -> bool;

    /// Checks if a drive can be polled for media changes.
    ///
    /// # Returns
    ///
    /// [`true`] if the `self` can be polled for media changes,
    ///  [`false`] otherwise.
    #[doc(alias = "g_drive_can_poll_for_media")]
    fn can_poll_for_media(&self) -> bool;

    /// Checks if a drive can be started.
    ///
    /// # Returns
    ///
    /// [`true`] if the `self` can be started, [`false`] otherwise.
    #[doc(alias = "g_drive_can_start")]
    fn can_start(&self) -> bool;

    /// Checks if a drive can be started degraded.
    ///
    /// # Returns
    ///
    /// [`true`] if the `self` can be started degraded, [`false`] otherwise.
    #[doc(alias = "g_drive_can_start_degraded")]
    fn can_start_degraded(&self) -> bool;

    /// Checks if a drive can be stopped.
    ///
    /// # Returns
    ///
    /// [`true`] if the `self` can be stopped, [`false`] otherwise.
    #[doc(alias = "g_drive_can_stop")]
    fn can_stop(&self) -> bool;

    /// Ejects a drive. This is an asynchronous operation, and is
    /// finished by calling `g_drive_eject_with_operation_finish()` with the `self`
    /// and [`AsyncResult`][crate::AsyncResult] data returned in the `callback`.
    /// ## `flags`
    /// flags affecting the unmount if required for eject
    /// ## `mount_operation`
    /// a [`MountOperation`][crate::MountOperation] or [`None`] to avoid
    ///  user interaction.
    /// ## `cancellable`
    /// optional [`Cancellable`][crate::Cancellable] object, [`None`] to ignore.
    /// ## `callback`
    /// a `GAsyncReadyCallback`, or [`None`].
    #[doc(alias = "g_drive_eject_with_operation")]
    fn eject_with_operation<P: FnOnce(Result<(), glib::Error>) + 'static>(
        &self,
        flags: MountUnmountFlags,
        mount_operation: Option<&impl IsA<MountOperation>>,
        cancellable: Option<&impl IsA<Cancellable>>,
        callback: P,
    );

    fn eject_with_operation_future(
        &self,
        flags: MountUnmountFlags,
        mount_operation: Option<&(impl IsA<MountOperation> + Clone + 'static)>,
    ) -> Pin<Box_<dyn std::future::Future<Output = Result<(), glib::Error>> + 'static>>;

    /// Gets the kinds of identifiers that `self` has.
    /// Use [`identifier()`][Self::identifier()] to obtain the identifiers
    /// themselves.
    ///
    /// # Returns
    ///
    /// a [`None`]-terminated
    ///  array of strings containing kinds of identifiers. Use `g_strfreev()`
    ///  to free.
    #[doc(alias = "g_drive_enumerate_identifiers")]
    fn enumerate_identifiers(&self) -> Vec<glib::GString>;

    /// Gets the icon for `self`.
    ///
    /// # Returns
    ///
    /// [`Icon`][crate::Icon] for the `self`.
    ///  Free the returned object with `g_object_unref()`.
    #[doc(alias = "g_drive_get_icon")]
    #[doc(alias = "get_icon")]
    fn icon(&self) -> Icon;

    /// Gets the identifier of the given kind for `self`. The only
    /// identifier currently available is
    /// [`DRIVE_IDENTIFIER_KIND_UNIX_DEVICE`][crate::DRIVE_IDENTIFIER_KIND_UNIX_DEVICE].
    /// ## `kind`
    /// the kind of identifier to return
    ///
    /// # Returns
    ///
    /// a newly allocated string containing the
    ///  requested identifier, or [`None`] if the [`Drive`][crate::Drive]
    ///  doesn't have this kind of identifier.
    #[doc(alias = "g_drive_get_identifier")]
    #[doc(alias = "get_identifier")]
    fn identifier(&self, kind: &str) -> Option<glib::GString>;

    /// Gets the name of `self`.
    ///
    /// # Returns
    ///
    /// a string containing `self`'s name. The returned
    ///  string should be freed when no longer needed.
    #[doc(alias = "g_drive_get_name")]
    #[doc(alias = "get_name")]
    fn name(&self) -> glib::GString;

    /// Gets the sort key for `self`, if any.
    ///
    /// # Returns
    ///
    /// Sorting key for `self` or [`None`] if no such key is available.
    #[doc(alias = "g_drive_get_sort_key")]
    #[doc(alias = "get_sort_key")]
    fn sort_key(&self) -> Option<glib::GString>;

    /// Gets a hint about how a drive can be started/stopped.
    ///
    /// # Returns
    ///
    /// A value from the [`DriveStartStopType`][crate::DriveStartStopType] enumeration.
    #[doc(alias = "g_drive_get_start_stop_type")]
    #[doc(alias = "get_start_stop_type")]
    fn start_stop_type(&self) -> DriveStartStopType;

    /// Gets the icon for `self`.
    ///
    /// # Returns
    ///
    /// symbolic [`Icon`][crate::Icon] for the `self`.
    ///  Free the returned object with `g_object_unref()`.
    #[doc(alias = "g_drive_get_symbolic_icon")]
    #[doc(alias = "get_symbolic_icon")]
    fn symbolic_icon(&self) -> Icon;

    /// Get a list of mountable volumes for `self`.
    ///
    /// The returned list should be freed with `g_list_free()`, after
    /// its elements have been unreffed with `g_object_unref()`.
    ///
    /// # Returns
    ///
    /// `GList` containing any [`Volume`][crate::Volume] objects on the given `self`.
    #[doc(alias = "g_drive_get_volumes")]
    #[doc(alias = "get_volumes")]
    fn volumes(&self) -> Vec<Volume>;

    /// Checks if the `self` has media. Note that the OS may not be polling
    /// the drive for media changes; see [`is_media_check_automatic()`][Self::is_media_check_automatic()]
    /// for more details.
    ///
    /// # Returns
    ///
    /// [`true`] if `self` has media, [`false`] otherwise.
    #[doc(alias = "g_drive_has_media")]
    fn has_media(&self) -> bool;

    /// Check if `self` has any mountable volumes.
    ///
    /// # Returns
    ///
    /// [`true`] if the `self` contains volumes, [`false`] otherwise.
    #[doc(alias = "g_drive_has_volumes")]
    fn has_volumes(&self) -> bool;

    /// Checks if `self` is capable of automatically detecting media changes.
    ///
    /// # Returns
    ///
    /// [`true`] if the `self` is capable of automatically detecting
    ///  media changes, [`false`] otherwise.
    #[doc(alias = "g_drive_is_media_check_automatic")]
    fn is_media_check_automatic(&self) -> bool;

    /// Checks if the `self` supports removable media.
    ///
    /// # Returns
    ///
    /// [`true`] if `self` supports removable media, [`false`] otherwise.
    #[doc(alias = "g_drive_is_media_removable")]
    fn is_media_removable(&self) -> bool;

    /// Checks if the [`Drive`][crate::Drive] and/or its media is considered removable by the user.
    /// See [`is_media_removable()`][Self::is_media_removable()].
    ///
    /// # Returns
    ///
    /// [`true`] if `self` and/or its media is considered removable, [`false`] otherwise.
    #[cfg(any(feature = "v2_50", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v2_50")))]
    #[doc(alias = "g_drive_is_removable")]
    fn is_removable(&self) -> bool;

    /// Asynchronously polls `self` to see if media has been inserted or removed.
    ///
    /// When the operation is finished, `callback` will be called.
    /// You can then call `g_drive_poll_for_media_finish()` to obtain the
    /// result of the operation.
    /// ## `cancellable`
    /// optional [`Cancellable`][crate::Cancellable] object, [`None`] to ignore.
    /// ## `callback`
    /// a `GAsyncReadyCallback`, or [`None`].
    #[doc(alias = "g_drive_poll_for_media")]
    fn poll_for_media<P: FnOnce(Result<(), glib::Error>) + 'static>(
        &self,
        cancellable: Option<&impl IsA<Cancellable>>,
        callback: P,
    );

    fn poll_for_media_future(
        &self,
    ) -> Pin<Box_<dyn std::future::Future<Output = Result<(), glib::Error>> + 'static>>;

    /// Asynchronously starts a drive.
    ///
    /// When the operation is finished, `callback` will be called.
    /// You can then call `g_drive_start_finish()` to obtain the
    /// result of the operation.
    /// ## `flags`
    /// flags affecting the start operation.
    /// ## `mount_operation`
    /// a [`MountOperation`][crate::MountOperation] or [`None`] to avoid
    ///  user interaction.
    /// ## `cancellable`
    /// optional [`Cancellable`][crate::Cancellable] object, [`None`] to ignore.
    /// ## `callback`
    /// a `GAsyncReadyCallback`, or [`None`].
    #[doc(alias = "g_drive_start")]
    fn start<P: FnOnce(Result<(), glib::Error>) + 'static>(
        &self,
        flags: DriveStartFlags,
        mount_operation: Option<&impl IsA<MountOperation>>,
        cancellable: Option<&impl IsA<Cancellable>>,
        callback: P,
    );

    fn start_future(
        &self,
        flags: DriveStartFlags,
        mount_operation: Option<&(impl IsA<MountOperation> + Clone + 'static)>,
    ) -> Pin<Box_<dyn std::future::Future<Output = Result<(), glib::Error>> + 'static>>;

    /// Asynchronously stops a drive.
    ///
    /// When the operation is finished, `callback` will be called.
    /// You can then call `g_drive_stop_finish()` to obtain the
    /// result of the operation.
    /// ## `flags`
    /// flags affecting the unmount if required for stopping.
    /// ## `mount_operation`
    /// a [`MountOperation`][crate::MountOperation] or [`None`] to avoid
    ///  user interaction.
    /// ## `cancellable`
    /// optional [`Cancellable`][crate::Cancellable] object, [`None`] to ignore.
    /// ## `callback`
    /// a `GAsyncReadyCallback`, or [`None`].
    #[doc(alias = "g_drive_stop")]
    fn stop<P: FnOnce(Result<(), glib::Error>) + 'static>(
        &self,
        flags: MountUnmountFlags,
        mount_operation: Option<&impl IsA<MountOperation>>,
        cancellable: Option<&impl IsA<Cancellable>>,
        callback: P,
    );

    fn stop_future(
        &self,
        flags: MountUnmountFlags,
        mount_operation: Option<&(impl IsA<MountOperation> + Clone + 'static)>,
    ) -> Pin<Box_<dyn std::future::Future<Output = Result<(), glib::Error>> + 'static>>;

    /// Emitted when the drive's state has changed.
    #[doc(alias = "changed")]
    fn connect_changed<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    /// This signal is emitted when the [`Drive`][crate::Drive] have been
    /// disconnected. If the recipient is holding references to the
    /// object they should release them so the object can be
    /// finalized.
    #[doc(alias = "disconnected")]
    fn connect_disconnected<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    /// Emitted when the physical eject button (if any) of a drive has
    /// been pressed.
    #[doc(alias = "eject-button")]
    fn connect_eject_button<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    /// Emitted when the physical stop button (if any) of a drive has
    /// been pressed.
    #[doc(alias = "stop-button")]
    fn connect_stop_button<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
}

impl<O: IsA<Drive>> DriveExt for O {
    fn can_eject(&self) -> bool {
        unsafe { from_glib(ffi::g_drive_can_eject(self.as_ref().to_glib_none().0)) }
    }

    fn can_poll_for_media(&self) -> bool {
        unsafe {
            from_glib(ffi::g_drive_can_poll_for_media(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn can_start(&self) -> bool {
        unsafe { from_glib(ffi::g_drive_can_start(self.as_ref().to_glib_none().0)) }
    }

    fn can_start_degraded(&self) -> bool {
        unsafe {
            from_glib(ffi::g_drive_can_start_degraded(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn can_stop(&self) -> bool {
        unsafe { from_glib(ffi::g_drive_can_stop(self.as_ref().to_glib_none().0)) }
    }

    fn eject_with_operation<P: FnOnce(Result<(), glib::Error>) + 'static>(
        &self,
        flags: MountUnmountFlags,
        mount_operation: Option<&impl IsA<MountOperation>>,
        cancellable: Option<&impl IsA<Cancellable>>,
        callback: P,
    ) {
        let main_context = glib::MainContext::ref_thread_default();
        let is_main_context_owner = main_context.is_owner();
        let has_acquired_main_context = (!is_main_context_owner)
            .then(|| main_context.acquire().ok())
            .flatten();
        assert!(
            is_main_context_owner || has_acquired_main_context.is_some(),
            "Async operations only allowed if the thread is owning the MainContext"
        );

        let user_data: Box_<glib::thread_guard::ThreadGuard<P>> =
            Box_::new(glib::thread_guard::ThreadGuard::new(callback));
        unsafe extern "C" fn eject_with_operation_trampoline<
            P: FnOnce(Result<(), glib::Error>) + 'static,
        >(
            _source_object: *mut glib::gobject_ffi::GObject,
            res: *mut crate::ffi::GAsyncResult,
            user_data: glib::ffi::gpointer,
        ) {
            let mut error = ptr::null_mut();
            let _ =
                ffi::g_drive_eject_with_operation_finish(_source_object as *mut _, res, &mut error);
            let result = if error.is_null() {
                Ok(())
            } else {
                Err(from_glib_full(error))
            };
            let callback: Box_<glib::thread_guard::ThreadGuard<P>> =
                Box_::from_raw(user_data as *mut _);
            let callback: P = callback.into_inner();
            callback(result);
        }
        let callback = eject_with_operation_trampoline::<P>;
        unsafe {
            ffi::g_drive_eject_with_operation(
                self.as_ref().to_glib_none().0,
                flags.into_glib(),
                mount_operation.map(|p| p.as_ref()).to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                Some(callback),
                Box_::into_raw(user_data) as *mut _,
            );
        }
    }

    fn eject_with_operation_future(
        &self,
        flags: MountUnmountFlags,
        mount_operation: Option<&(impl IsA<MountOperation> + Clone + 'static)>,
    ) -> Pin<Box_<dyn std::future::Future<Output = Result<(), glib::Error>> + 'static>> {
        let mount_operation = mount_operation.map(ToOwned::to_owned);
        Box_::pin(crate::GioFuture::new(
            self,
            move |obj, cancellable, send| {
                obj.eject_with_operation(
                    flags,
                    mount_operation.as_ref().map(::std::borrow::Borrow::borrow),
                    Some(cancellable),
                    move |res| {
                        send.resolve(res);
                    },
                );
            },
        ))
    }

    fn enumerate_identifiers(&self) -> Vec<glib::GString> {
        unsafe {
            FromGlibPtrContainer::from_glib_full(ffi::g_drive_enumerate_identifiers(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn icon(&self) -> Icon {
        unsafe { from_glib_full(ffi::g_drive_get_icon(self.as_ref().to_glib_none().0)) }
    }

    fn identifier(&self, kind: &str) -> Option<glib::GString> {
        unsafe {
            from_glib_full(ffi::g_drive_get_identifier(
                self.as_ref().to_glib_none().0,
                kind.to_glib_none().0,
            ))
        }
    }

    fn name(&self) -> glib::GString {
        unsafe { from_glib_full(ffi::g_drive_get_name(self.as_ref().to_glib_none().0)) }
    }

    fn sort_key(&self) -> Option<glib::GString> {
        unsafe { from_glib_none(ffi::g_drive_get_sort_key(self.as_ref().to_glib_none().0)) }
    }

    fn start_stop_type(&self) -> DriveStartStopType {
        unsafe {
            from_glib(ffi::g_drive_get_start_stop_type(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn symbolic_icon(&self) -> Icon {
        unsafe {
            from_glib_full(ffi::g_drive_get_symbolic_icon(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn volumes(&self) -> Vec<Volume> {
        unsafe {
            FromGlibPtrContainer::from_glib_full(ffi::g_drive_get_volumes(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn has_media(&self) -> bool {
        unsafe { from_glib(ffi::g_drive_has_media(self.as_ref().to_glib_none().0)) }
    }

    fn has_volumes(&self) -> bool {
        unsafe { from_glib(ffi::g_drive_has_volumes(self.as_ref().to_glib_none().0)) }
    }

    fn is_media_check_automatic(&self) -> bool {
        unsafe {
            from_glib(ffi::g_drive_is_media_check_automatic(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn is_media_removable(&self) -> bool {
        unsafe {
            from_glib(ffi::g_drive_is_media_removable(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    #[cfg(any(feature = "v2_50", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v2_50")))]
    fn is_removable(&self) -> bool {
        unsafe { from_glib(ffi::g_drive_is_removable(self.as_ref().to_glib_none().0)) }
    }

    fn poll_for_media<P: FnOnce(Result<(), glib::Error>) + 'static>(
        &self,
        cancellable: Option<&impl IsA<Cancellable>>,
        callback: P,
    ) {
        let main_context = glib::MainContext::ref_thread_default();
        let is_main_context_owner = main_context.is_owner();
        let has_acquired_main_context = (!is_main_context_owner)
            .then(|| main_context.acquire().ok())
            .flatten();
        assert!(
            is_main_context_owner || has_acquired_main_context.is_some(),
            "Async operations only allowed if the thread is owning the MainContext"
        );

        let user_data: Box_<glib::thread_guard::ThreadGuard<P>> =
            Box_::new(glib::thread_guard::ThreadGuard::new(callback));
        unsafe extern "C" fn poll_for_media_trampoline<
            P: FnOnce(Result<(), glib::Error>) + 'static,
        >(
            _source_object: *mut glib::gobject_ffi::GObject,
            res: *mut crate::ffi::GAsyncResult,
            user_data: glib::ffi::gpointer,
        ) {
            let mut error = ptr::null_mut();
            let _ = ffi::g_drive_poll_for_media_finish(_source_object as *mut _, res, &mut error);
            let result = if error.is_null() {
                Ok(())
            } else {
                Err(from_glib_full(error))
            };
            let callback: Box_<glib::thread_guard::ThreadGuard<P>> =
                Box_::from_raw(user_data as *mut _);
            let callback: P = callback.into_inner();
            callback(result);
        }
        let callback = poll_for_media_trampoline::<P>;
        unsafe {
            ffi::g_drive_poll_for_media(
                self.as_ref().to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                Some(callback),
                Box_::into_raw(user_data) as *mut _,
            );
        }
    }

    fn poll_for_media_future(
        &self,
    ) -> Pin<Box_<dyn std::future::Future<Output = Result<(), glib::Error>> + 'static>> {
        Box_::pin(crate::GioFuture::new(
            self,
            move |obj, cancellable, send| {
                obj.poll_for_media(Some(cancellable), move |res| {
                    send.resolve(res);
                });
            },
        ))
    }

    fn start<P: FnOnce(Result<(), glib::Error>) + 'static>(
        &self,
        flags: DriveStartFlags,
        mount_operation: Option<&impl IsA<MountOperation>>,
        cancellable: Option<&impl IsA<Cancellable>>,
        callback: P,
    ) {
        let main_context = glib::MainContext::ref_thread_default();
        let is_main_context_owner = main_context.is_owner();
        let has_acquired_main_context = (!is_main_context_owner)
            .then(|| main_context.acquire().ok())
            .flatten();
        assert!(
            is_main_context_owner || has_acquired_main_context.is_some(),
            "Async operations only allowed if the thread is owning the MainContext"
        );

        let user_data: Box_<glib::thread_guard::ThreadGuard<P>> =
            Box_::new(glib::thread_guard::ThreadGuard::new(callback));
        unsafe extern "C" fn start_trampoline<P: FnOnce(Result<(), glib::Error>) + 'static>(
            _source_object: *mut glib::gobject_ffi::GObject,
            res: *mut crate::ffi::GAsyncResult,
            user_data: glib::ffi::gpointer,
        ) {
            let mut error = ptr::null_mut();
            let _ = ffi::g_drive_start_finish(_source_object as *mut _, res, &mut error);
            let result = if error.is_null() {
                Ok(())
            } else {
                Err(from_glib_full(error))
            };
            let callback: Box_<glib::thread_guard::ThreadGuard<P>> =
                Box_::from_raw(user_data as *mut _);
            let callback: P = callback.into_inner();
            callback(result);
        }
        let callback = start_trampoline::<P>;
        unsafe {
            ffi::g_drive_start(
                self.as_ref().to_glib_none().0,
                flags.into_glib(),
                mount_operation.map(|p| p.as_ref()).to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                Some(callback),
                Box_::into_raw(user_data) as *mut _,
            );
        }
    }

    fn start_future(
        &self,
        flags: DriveStartFlags,
        mount_operation: Option<&(impl IsA<MountOperation> + Clone + 'static)>,
    ) -> Pin<Box_<dyn std::future::Future<Output = Result<(), glib::Error>> + 'static>> {
        let mount_operation = mount_operation.map(ToOwned::to_owned);
        Box_::pin(crate::GioFuture::new(
            self,
            move |obj, cancellable, send| {
                obj.start(
                    flags,
                    mount_operation.as_ref().map(::std::borrow::Borrow::borrow),
                    Some(cancellable),
                    move |res| {
                        send.resolve(res);
                    },
                );
            },
        ))
    }

    fn stop<P: FnOnce(Result<(), glib::Error>) + 'static>(
        &self,
        flags: MountUnmountFlags,
        mount_operation: Option<&impl IsA<MountOperation>>,
        cancellable: Option<&impl IsA<Cancellable>>,
        callback: P,
    ) {
        let main_context = glib::MainContext::ref_thread_default();
        let is_main_context_owner = main_context.is_owner();
        let has_acquired_main_context = (!is_main_context_owner)
            .then(|| main_context.acquire().ok())
            .flatten();
        assert!(
            is_main_context_owner || has_acquired_main_context.is_some(),
            "Async operations only allowed if the thread is owning the MainContext"
        );

        let user_data: Box_<glib::thread_guard::ThreadGuard<P>> =
            Box_::new(glib::thread_guard::ThreadGuard::new(callback));
        unsafe extern "C" fn stop_trampoline<P: FnOnce(Result<(), glib::Error>) + 'static>(
            _source_object: *mut glib::gobject_ffi::GObject,
            res: *mut crate::ffi::GAsyncResult,
            user_data: glib::ffi::gpointer,
        ) {
            let mut error = ptr::null_mut();
            let _ = ffi::g_drive_stop_finish(_source_object as *mut _, res, &mut error);
            let result = if error.is_null() {
                Ok(())
            } else {
                Err(from_glib_full(error))
            };
            let callback: Box_<glib::thread_guard::ThreadGuard<P>> =
                Box_::from_raw(user_data as *mut _);
            let callback: P = callback.into_inner();
            callback(result);
        }
        let callback = stop_trampoline::<P>;
        unsafe {
            ffi::g_drive_stop(
                self.as_ref().to_glib_none().0,
                flags.into_glib(),
                mount_operation.map(|p| p.as_ref()).to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                Some(callback),
                Box_::into_raw(user_data) as *mut _,
            );
        }
    }

    fn stop_future(
        &self,
        flags: MountUnmountFlags,
        mount_operation: Option<&(impl IsA<MountOperation> + Clone + 'static)>,
    ) -> Pin<Box_<dyn std::future::Future<Output = Result<(), glib::Error>> + 'static>> {
        let mount_operation = mount_operation.map(ToOwned::to_owned);
        Box_::pin(crate::GioFuture::new(
            self,
            move |obj, cancellable, send| {
                obj.stop(
                    flags,
                    mount_operation.as_ref().map(::std::borrow::Borrow::borrow),
                    Some(cancellable),
                    move |res| {
                        send.resolve(res);
                    },
                );
            },
        ))
    }

    fn connect_changed<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn changed_trampoline<P: IsA<Drive>, F: Fn(&P) + 'static>(
            this: *mut ffi::GDrive,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Drive::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"changed\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    changed_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_disconnected<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn disconnected_trampoline<P: IsA<Drive>, F: Fn(&P) + 'static>(
            this: *mut ffi::GDrive,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Drive::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"disconnected\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    disconnected_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_eject_button<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn eject_button_trampoline<P: IsA<Drive>, F: Fn(&P) + 'static>(
            this: *mut ffi::GDrive,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Drive::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"eject-button\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    eject_button_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_stop_button<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn stop_button_trampoline<P: IsA<Drive>, F: Fn(&P) + 'static>(
            this: *mut ffi::GDrive,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Drive::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"stop-button\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    stop_button_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl fmt::Display for Drive {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        f.write_str("Drive")
    }
}