gio/auto/

mount.rs

// 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, Cancellable, Drive, File, Icon, MountMountFlags, MountOperation,
    MountUnmountFlags, Volume, ffi,
};
use glib::{
    object::ObjectType as _,
    prelude::*,
    signal::{SignalHandlerId, connect_raw},
    translate::*,
};
use std::{boxed::Box as Box_, pin::Pin};

glib::wrapper! {
    /// The `GMount` interface represents a user-visible mount, such as a mounted
    /// file system.
    ///
    /// `GMount` is a ‘mounted’ filesystem that you can access. Mounted is in
    /// quotes because it’s not the same as a UNIX mount, it might be a GVFS
    /// mount, but you can still access the files on it if you use GIO.
    ///
    /// A `GMount` might be associated with a [`Volume`][crate::Volume] (such as a USB flash
    /// drive) which hosts it.
    ///
    /// Unmounting a `GMount` instance is an asynchronous operation. For
    /// more information about asynchronous operations, see [`AsyncResult`][crate::AsyncResult]
    /// and [`Task`][crate::Task]. To unmount a `GMount` instance, first call
    /// [`MountExt::unmount_with_operation()`][crate::prelude::MountExt::unmount_with_operation()] with (at least) the `GMount`
    /// instance and a [type@Gio.AsyncReadyCallback].  The callback will be fired
    /// when the operation has resolved (either with success or failure), and a
    /// [`AsyncResult`][crate::AsyncResult] structure will be passed to the callback.  That
    /// callback should then call `Gio::Mount::unmount_with_operation_finish()`
    /// with the `GMount` and the [`AsyncResult`][crate::AsyncResult] data to see if the
    /// operation was completed successfully.  If an `error` is present when
    /// `Gio::Mount::unmount_with_operation_finish()` is called, then it will be
    /// filled with any error information.
    ///
    /// Note, when [porting from GnomeVFS](migrating-gnome-vfs.html), `GMount` is the
    /// moral equivalent of `GnomeVFSVolume`.
    ///
    /// ## Signals
    ///
    ///
    /// #### `changed`
    ///  Emitted when the mount has been changed.
    ///
    ///
    ///
    ///
    /// #### `pre-unmount`
    ///  This signal may be emitted when the #GMount is about to be
    /// unmounted.
    ///
    /// This signal depends on the backend and is only emitted if
    /// GIO was used to unmount.
    ///
    ///
    ///
    ///
    /// #### `unmounted`
    ///  This signal is emitted when the #GMount have been
    /// unmounted. If the recipient is holding references to the
    /// object they should release them so the object can be
    /// finalized.
    ///
    ///
    ///
    /// # Implements
    ///
    /// [`MountExt`][trait@crate::prelude::MountExt]
    #[doc(alias = "GMount")]
    pub struct Mount(Interface<ffi::GMount, ffi::GMountIface>);

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

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

/// Trait containing all [`struct@Mount`] methods.
///
/// # Implementors
///
/// [`Mount`][struct@crate::Mount]
pub trait MountExt: IsA<Mount> + 'static {
    /// Checks if @self can be ejected.
    ///
    /// # Returns
    ///
    /// [`true`] if the @self can be ejected.
    #[doc(alias = "g_mount_can_eject")]
    fn can_eject(&self) -> bool {
        unsafe { from_glib(ffi::g_mount_can_eject(self.as_ref().to_glib_none().0)) }
    }

    /// Checks if @self can be unmounted.
    ///
    /// # Returns
    ///
    /// [`true`] if the @self can be unmounted.
    #[doc(alias = "g_mount_can_unmount")]
    fn can_unmount(&self) -> bool {
        unsafe { from_glib(ffi::g_mount_can_unmount(self.as_ref().to_glib_none().0)) }
    }

    /// Ejects a mount. This is an asynchronous operation, and is
    /// finished by calling g_mount_eject_with_operation_finish() with the @self
    /// and #GAsyncResult data returned in the @callback.
    /// ## `flags`
    /// flags affecting the unmount if required for eject
    /// ## `mount_operation`
    /// a #GMountOperation or [`None`] to avoid
    ///     user interaction.
    /// ## `cancellable`
    /// optional #GCancellable object, [`None`] to ignore.
    /// ## `callback`
    /// a #GAsyncReadyCallback, or [`None`].
    #[doc(alias = "g_mount_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,
    ) {
        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,
        ) {
            unsafe {
                let mut error = std::ptr::null_mut();
                ffi::g_mount_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_mount_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);
                    },
                );
            },
        ))
    }

    /// Gets the default location of @self. The default location of the given
    /// @self is a path that reflects the main entry point for the user (e.g.
    /// the home directory, or the root of the volume).
    ///
    /// # Returns
    ///
    /// a #GFile.
    ///      The returned object should be unreffed with
    ///      g_object_unref() when no longer needed.
    #[doc(alias = "g_mount_get_default_location")]
    #[doc(alias = "get_default_location")]
    fn default_location(&self) -> File {
        unsafe {
            from_glib_full(ffi::g_mount_get_default_location(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Gets the drive for the @self.
    ///
    /// This is a convenience method for getting the #GVolume and then
    /// using that object to get the #GDrive.
    ///
    /// # Returns
    ///
    /// a #GDrive or [`None`] if @self is not
    ///      associated with a volume or a drive.
    ///      The returned object should be unreffed with
    ///      g_object_unref() when no longer needed.
    #[doc(alias = "g_mount_get_drive")]
    #[doc(alias = "get_drive")]
    fn drive(&self) -> Option<Drive> {
        unsafe { from_glib_full(ffi::g_mount_get_drive(self.as_ref().to_glib_none().0)) }
    }

    /// Gets the icon for @self.
    ///
    /// # Returns
    ///
    /// a #GIcon.
    ///      The returned object should be unreffed with
    ///      g_object_unref() when no longer needed.
    #[doc(alias = "g_mount_get_icon")]
    #[doc(alias = "get_icon")]
    fn icon(&self) -> Icon {
        unsafe { from_glib_full(ffi::g_mount_get_icon(self.as_ref().to_glib_none().0)) }
    }

    /// Gets the name of @self.
    ///
    /// # Returns
    ///
    /// the name for the given @self.
    ///     The returned string should be freed with g_free()
    ///     when no longer needed.
    #[doc(alias = "g_mount_get_name")]
    #[doc(alias = "get_name")]
    fn name(&self) -> glib::GString {
        unsafe { from_glib_full(ffi::g_mount_get_name(self.as_ref().to_glib_none().0)) }
    }

    /// Gets the root directory on @self.
    ///
    /// # Returns
    ///
    /// a #GFile.
    ///      The returned object should be unreffed with
    ///      g_object_unref() when no longer needed.
    #[doc(alias = "g_mount_get_root")]
    #[doc(alias = "get_root")]
    fn root(&self) -> File {
        unsafe { from_glib_full(ffi::g_mount_get_root(self.as_ref().to_glib_none().0)) }
    }

    /// Gets the sort key for @self, if any.
    ///
    /// # Returns
    ///
    /// Sorting key for @self or [`None`] if no such key is available.
    #[doc(alias = "g_mount_get_sort_key")]
    #[doc(alias = "get_sort_key")]
    fn sort_key(&self) -> Option<glib::GString> {
        unsafe { from_glib_none(ffi::g_mount_get_sort_key(self.as_ref().to_glib_none().0)) }
    }

    /// Gets the symbolic icon for @self.
    ///
    /// # Returns
    ///
    /// a #GIcon.
    ///      The returned object should be unreffed with
    ///      g_object_unref() when no longer needed.
    #[doc(alias = "g_mount_get_symbolic_icon")]
    #[doc(alias = "get_symbolic_icon")]
    fn symbolic_icon(&self) -> Icon {
        unsafe {
            from_glib_full(ffi::g_mount_get_symbolic_icon(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Gets the UUID for the @self. The reference is typically based on
    /// the file system UUID for the mount in question and should be
    /// considered an opaque string. Returns [`None`] if there is no UUID
    /// available.
    ///
    /// # Returns
    ///
    /// the UUID for @self or [`None`] if no UUID
    ///     can be computed.
    ///     The returned string should be freed with g_free()
    ///     when no longer needed.
    #[doc(alias = "g_mount_get_uuid")]
    #[doc(alias = "get_uuid")]
    fn uuid(&self) -> Option<glib::GString> {
        unsafe { from_glib_full(ffi::g_mount_get_uuid(self.as_ref().to_glib_none().0)) }
    }

    /// Gets the volume for the @self.
    ///
    /// # Returns
    ///
    /// a #GVolume or [`None`] if @self is not
    ///      associated with a volume.
    ///      The returned object should be unreffed with
    ///      g_object_unref() when no longer needed.
    #[doc(alias = "g_mount_get_volume")]
    #[doc(alias = "get_volume")]
    fn volume(&self) -> Option<Volume> {
        unsafe { from_glib_full(ffi::g_mount_get_volume(self.as_ref().to_glib_none().0)) }
    }

    /// Tries to guess the type of content stored on @self. Returns one or
    /// more textual identifiers of well-known content types (typically
    /// prefixed with "x-content/"), e.g. x-content/image-dcf for camera
    /// memory cards. See the
    /// [shared-mime-info](http://www.freedesktop.org/wiki/Specifications/shared-mime-info-spec)
    /// specification for more on x-content types.
    ///
    /// This is an asynchronous operation (see
    /// g_mount_guess_content_type_sync() for the synchronous version), and
    /// is finished by calling g_mount_guess_content_type_finish() with the
    /// @self and #GAsyncResult data returned in the @callback.
    /// ## `force_rescan`
    /// Whether to force a rescan of the content.
    ///     Otherwise a cached result will be used if available
    /// ## `cancellable`
    /// optional #GCancellable object, [`None`] to ignore
    /// ## `callback`
    /// a #GAsyncReadyCallback
    #[doc(alias = "g_mount_guess_content_type")]
    fn guess_content_type<P: FnOnce(Result<Vec<glib::GString>, glib::Error>) + 'static>(
        &self,
        force_rescan: bool,
        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 guess_content_type_trampoline<
            P: FnOnce(Result<Vec<glib::GString>, glib::Error>) + 'static,
        >(
            _source_object: *mut glib::gobject_ffi::GObject,
            res: *mut crate::ffi::GAsyncResult,
            user_data: glib::ffi::gpointer,
        ) {
            unsafe {
                let mut error = std::ptr::null_mut();
                let ret = ffi::g_mount_guess_content_type_finish(
                    _source_object as *mut _,
                    res,
                    &mut error,
                );
                let result = if error.is_null() {
                    Ok(FromGlibPtrContainer::from_glib_full(ret))
                } 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 = guess_content_type_trampoline::<P>;
        unsafe {
            ffi::g_mount_guess_content_type(
                self.as_ref().to_glib_none().0,
                force_rescan.into_glib(),
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                Some(callback),
                Box_::into_raw(user_data) as *mut _,
            );
        }
    }

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

    /// Tries to guess the type of content stored on @self. Returns one or
    /// more textual identifiers of well-known content types (typically
    /// prefixed with "x-content/"), e.g. x-content/image-dcf for camera
    /// memory cards. See the
    /// [shared-mime-info](http://www.freedesktop.org/wiki/Specifications/shared-mime-info-spec)
    /// specification for more on x-content types.
    ///
    /// This is a synchronous operation and as such may block doing IO;
    /// see g_mount_guess_content_type() for the asynchronous version.
    /// ## `force_rescan`
    /// Whether to force a rescan of the content.
    ///     Otherwise a cached result will be used if available
    /// ## `cancellable`
    /// optional #GCancellable object, [`None`] to ignore
    ///
    /// # Returns
    ///
    /// a [`None`]-terminated array of content types or [`None`] on error.
    ///     Caller should free this array with g_strfreev() when done with it.
    #[doc(alias = "g_mount_guess_content_type_sync")]
    fn guess_content_type_sync(
        &self,
        force_rescan: bool,
        cancellable: Option<&impl IsA<Cancellable>>,
    ) -> Result<Vec<glib::GString>, glib::Error> {
        unsafe {
            let mut error = std::ptr::null_mut();
            let ret = ffi::g_mount_guess_content_type_sync(
                self.as_ref().to_glib_none().0,
                force_rescan.into_glib(),
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            if error.is_null() {
                Ok(FromGlibPtrContainer::from_glib_full(ret))
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    /// Determines if @self is shadowed. Applications or libraries should
    /// avoid displaying @self in the user interface if it is shadowed.
    ///
    /// A mount is said to be shadowed if there exists one or more user
    /// visible objects (currently #GMount objects) with a root that is
    /// inside the root of @self.
    ///
    /// One application of shadow mounts is when exposing a single file
    /// system that is used to address several logical volumes. In this
    /// situation, a #GVolumeMonitor implementation would create two
    /// #GVolume objects (for example, one for the camera functionality of
    /// the device and one for a SD card reader on the device) with
    /// activation URIs `gphoto2://[usb:001,002]/store1/`
    /// and `gphoto2://[usb:001,002]/store2/`. When the
    /// underlying mount (with root
    /// `gphoto2://[usb:001,002]/`) is mounted, said
    /// #GVolumeMonitor implementation would create two #GMount objects
    /// (each with their root matching the corresponding volume activation
    /// root) that would shadow the original mount.
    ///
    /// The proxy monitor in GVfs 2.26 and later, automatically creates and
    /// manage shadow mounts (and shadows the underlying mount) if the
    /// activation root on a #GVolume is set.
    ///
    /// # Returns
    ///
    /// [`true`] if @self is shadowed.
    #[doc(alias = "g_mount_is_shadowed")]
    fn is_shadowed(&self) -> bool {
        unsafe { from_glib(ffi::g_mount_is_shadowed(self.as_ref().to_glib_none().0)) }
    }

    /// Remounts a mount. This is an asynchronous operation, and is
    /// finished by calling g_mount_remount_finish() with the @self
    /// and #GAsyncResults data returned in the @callback.
    ///
    /// Remounting is useful when some setting affecting the operation
    /// of the volume has been changed, as these may need a remount to
    /// take affect. While this is semantically equivalent with unmounting
    /// and then remounting not all backends might need to actually be
    /// unmounted.
    /// ## `flags`
    /// flags affecting the operation
    /// ## `mount_operation`
    /// a #GMountOperation or [`None`] to avoid
    ///     user interaction.
    /// ## `cancellable`
    /// optional #GCancellable object, [`None`] to ignore.
    /// ## `callback`
    /// a #GAsyncReadyCallback, or [`None`].
    #[doc(alias = "g_mount_remount")]
    fn remount<P: FnOnce(Result<(), glib::Error>) + 'static>(
        &self,
        flags: MountMountFlags,
        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 remount_trampoline<P: FnOnce(Result<(), glib::Error>) + 'static>(
            _source_object: *mut glib::gobject_ffi::GObject,
            res: *mut crate::ffi::GAsyncResult,
            user_data: glib::ffi::gpointer,
        ) {
            unsafe {
                let mut error = std::ptr::null_mut();
                ffi::g_mount_remount_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 = remount_trampoline::<P>;
        unsafe {
            ffi::g_mount_remount(
                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 remount_future(
        &self,
        flags: MountMountFlags,
        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.remount(
                    flags,
                    mount_operation.as_ref().map(::std::borrow::Borrow::borrow),
                    Some(cancellable),
                    move |res| {
                        send.resolve(res);
                    },
                );
            },
        ))
    }

    /// Increments the shadow count on @self. Usually used by
    /// #GVolumeMonitor implementations when creating a shadow mount for
    /// @self, see g_mount_is_shadowed() for more information. The caller
    /// will need to emit the #GMount::changed signal on @self manually.
    #[doc(alias = "g_mount_shadow")]
    fn shadow(&self) {
        unsafe {
            ffi::g_mount_shadow(self.as_ref().to_glib_none().0);
        }
    }

    /// Unmounts a mount. This is an asynchronous operation, and is
    /// finished by calling g_mount_unmount_with_operation_finish() with the @self
    /// and #GAsyncResult data returned in the @callback.
    /// ## `flags`
    /// flags affecting the operation
    /// ## `mount_operation`
    /// a #GMountOperation or [`None`] to avoid
    ///     user interaction.
    /// ## `cancellable`
    /// optional #GCancellable object, [`None`] to ignore.
    /// ## `callback`
    /// a #GAsyncReadyCallback, or [`None`].
    #[doc(alias = "g_mount_unmount_with_operation")]
    fn unmount_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 unmount_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,
        ) {
            unsafe {
                let mut error = std::ptr::null_mut();
                ffi::g_mount_unmount_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 = unmount_with_operation_trampoline::<P>;
        unsafe {
            ffi::g_mount_unmount_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 unmount_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.unmount_with_operation(
                    flags,
                    mount_operation.as_ref().map(::std::borrow::Borrow::borrow),
                    Some(cancellable),
                    move |res| {
                        send.resolve(res);
                    },
                );
            },
        ))
    }

    /// Decrements the shadow count on @self. Usually used by
    /// #GVolumeMonitor implementations when destroying a shadow mount for
    /// @self, see g_mount_is_shadowed() for more information. The caller
    /// will need to emit the #GMount::changed signal on @self manually.
    #[doc(alias = "g_mount_unshadow")]
    fn unshadow(&self) {
        unsafe {
            ffi::g_mount_unshadow(self.as_ref().to_glib_none().0);
        }
    }

    /// Emitted when the mount has been changed.
    #[doc(alias = "changed")]
    fn connect_changed<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn changed_trampoline<P: IsA<Mount>, F: Fn(&P) + 'static>(
            this: *mut ffi::GMount,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(Mount::from_glib_borrow(this).unsafe_cast_ref())
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"changed".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    changed_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    /// This signal may be emitted when the #GMount is about to be
    /// unmounted.
    ///
    /// This signal depends on the backend and is only emitted if
    /// GIO was used to unmount.
    #[doc(alias = "pre-unmount")]
    fn connect_pre_unmount<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn pre_unmount_trampoline<P: IsA<Mount>, F: Fn(&P) + 'static>(
            this: *mut ffi::GMount,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(Mount::from_glib_borrow(this).unsafe_cast_ref())
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"pre-unmount".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    pre_unmount_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    /// This signal is emitted when the #GMount have been
    /// unmounted. If the recipient is holding references to the
    /// object they should release them so the object can be
    /// finalized.
    #[doc(alias = "unmounted")]
    fn connect_unmounted<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn unmounted_trampoline<P: IsA<Mount>, F: Fn(&P) + 'static>(
            this: *mut ffi::GMount,
            f: glib::ffi::gpointer,
        ) {
            unsafe {
                let f: &F = &*(f as *const F);
                f(Mount::from_glib_borrow(this).unsafe_cast_ref())
            }
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                c"unmounted".as_ptr() as *const _,
                Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
                    unmounted_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl<O: IsA<Mount>> MountExt for O {}