// 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::{DeviceTool, Display, InputSource, ModifierType, Seat, Surface};
use glib::{
    prelude::*,
    signal::{connect_raw, SignalHandlerId},
    translate::*,
};
use std::{boxed::Box as Box_, fmt, mem, mem::transmute};

glib::wrapper! {
    /// The [`Device`][crate::Device] object represents an input device, such
    /// as a keyboard, a mouse, or a touchpad.
    ///
    /// See the [`Seat`][crate::Seat] documentation for more information
    /// about the various kinds of devices, and their relationships.
    ///
    /// This is an Abstract Base Class, you cannot instantiate it.
    ///
    /// ## Properties
    ///
    ///
    /// #### `caps-lock-state`
    ///  Whether Caps Lock is on.
    ///
    /// This is only relevant for keyboard devices.
    ///
    /// Readable
    ///
    ///
    /// #### `direction`
    ///  The direction of the current layout.
    ///
    /// This is only relevant for keyboard devices.
    ///
    /// Readable
    ///
    ///
    /// #### `display`
    ///  The [`Display`][crate::Display] the [`Device`][crate::Device] pertains to.
    ///
    /// Readable | Writeable | Construct Only
    ///
    ///
    /// #### `has-bidi-layouts`
    ///  Whether the device has both right-to-left and left-to-right layouts.
    ///
    /// This is only relevant for keyboard devices.
    ///
    /// Readable
    ///
    ///
    /// #### `has-cursor`
    ///  Whether the device is represented by a cursor on the screen.
    ///
    /// Readable | Writeable | Construct Only
    ///
    ///
    /// #### `modifier-state`
    ///  The current modifier state of the device.
    ///
    /// This is only relevant for keyboard devices.
    ///
    /// Readable
    ///
    ///
    /// #### `n-axes`
    ///  Number of axes in the device.
    ///
    /// Readable
    ///
    ///
    /// #### `name`
    ///  The device name.
    ///
    /// Readable | Writeable | Construct Only
    ///
    ///
    /// #### `num-lock-state`
    ///  Whether Num Lock is on.
    ///
    /// This is only relevant for keyboard devices.
    ///
    /// Readable
    ///
    ///
    /// #### `num-touches`
    ///  The maximal number of concurrent touches on a touch device.
    ///
    /// Will be 0 if the device is not a touch device or if the number
    /// of touches is unknown.
    ///
    /// Readable | Writeable | Construct Only
    ///
    ///
    /// #### `product-id`
    ///  Product ID of this device.
    ///
    /// See [`DeviceExt::product_id()`][crate::prelude::DeviceExt::product_id()].
    ///
    /// Readable | Writeable | Construct Only
    ///
    ///
    /// #### `scroll-lock-state`
    ///  Whether Scroll Lock is on.
    ///
    /// This is only relevant for keyboard devices.
    ///
    /// Readable
    ///
    ///
    /// #### `seat`
    ///  [`Seat`][crate::Seat] of this device.
    ///
    /// Readable | Writeable
    ///
    ///
    /// #### `source`
    ///  Source type for the device.
    ///
    /// Readable | Writeable | Construct Only
    ///
    ///
    /// #### `tool`
    ///  The [`DeviceTool`][crate::DeviceTool] that is currently used with this device.
    ///
    /// Readable
    ///
    ///
    /// #### `vendor-id`
    ///  Vendor ID of this device.
    ///
    /// See [`DeviceExt::vendor_id()`][crate::prelude::DeviceExt::vendor_id()].
    ///
    /// Readable | Writeable | Construct Only
    ///
    /// ## Signals
    ///
    ///
    /// #### `changed`
    ///  Emitted either when the number of either axes or keys changes.
    ///
    /// On X11 this will normally happen when the physical device
    /// routing events through the logical device changes (for
    /// example, user switches from the USB mouse to a tablet); in
    /// that case the logical device will change to reflect the axes
    /// and keys on the new physical device.
    ///
    ///
    ///
    ///
    /// #### `tool-changed`
    ///  Emitted on pen/eraser devices whenever tools enter or leave proximity.
    ///
    ///
    ///
    /// # Implements
    ///
    /// [`DeviceExt`][trait@crate::prelude::DeviceExt]
    #[doc(alias = "GdkDevice")]
    pub struct Device(Object<ffi::GdkDevice>);

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

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

impl fmt::Display for Device {
    #[inline]
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        f.write_str(&DeviceExt::name(self))
    }
}

mod sealed {
    pub trait Sealed {}
    impl<T: super::IsA<super::Device>> Sealed for T {}
}

/// Trait containing all [`struct@Device`] methods.
///
/// # Implementors
///
/// [`DevicePad`][struct@crate::DevicePad], [`Device`][struct@crate::Device]
pub trait DeviceExt: IsA<Device> + sealed::Sealed + 'static {
    /// Retrieves whether the Caps Lock modifier of the keyboard is locked.
    ///
    /// This is only relevant for keyboard devices.
    ///
    /// # Returns
    ///
    /// [`true`] if Caps Lock is on for @self
    #[doc(alias = "gdk_device_get_caps_lock_state")]
    #[doc(alias = "get_caps_lock_state")]
    fn is_caps_locked(&self) -> bool {
        unsafe {
            from_glib(ffi::gdk_device_get_caps_lock_state(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Retrieves the current tool for @self.
    ///
    /// # Returns
    ///
    /// the [`DeviceTool`][crate::DeviceTool]
    #[doc(alias = "gdk_device_get_device_tool")]
    #[doc(alias = "get_device_tool")]
    fn device_tool(&self) -> Option<DeviceTool> {
        unsafe {
            from_glib_none(ffi::gdk_device_get_device_tool(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the direction of effective layout of the keyboard.
    ///
    /// This is only relevant for keyboard devices.
    ///
    /// The direction of a layout is the direction of the majority
    /// of its symbols. See `unichar_direction()`.
    ///
    /// # Returns
    ///
    /// [`pango::Direction::Ltr`][crate::pango::Direction::Ltr] or [`pango::Direction::Rtl`][crate::pango::Direction::Rtl]
    ///   if it can determine the direction. [`pango::Direction::Neutral`][crate::pango::Direction::Neutral]
    ///   otherwise
    #[doc(alias = "gdk_device_get_direction")]
    #[doc(alias = "get_direction")]
    fn direction(&self) -> pango::Direction {
        unsafe {
            from_glib(ffi::gdk_device_get_direction(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the [`Display`][crate::Display] to which @self pertains.
    ///
    /// # Returns
    ///
    /// a [`Display`][crate::Display]
    #[doc(alias = "gdk_device_get_display")]
    #[doc(alias = "get_display")]
    fn display(&self) -> Display {
        unsafe { from_glib_none(ffi::gdk_device_get_display(self.as_ref().to_glib_none().0)) }
    }

    /// Determines whether the pointer follows device motion.
    ///
    /// This is not meaningful for keyboard devices, which
    /// don't have a pointer.
    ///
    /// # Returns
    ///
    /// [`true`] if the pointer follows device motion
    #[doc(alias = "gdk_device_get_has_cursor")]
    #[doc(alias = "get_has_cursor")]
    fn has_cursor(&self) -> bool {
        unsafe {
            from_glib(ffi::gdk_device_get_has_cursor(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Retrieves the current modifier state of the keyboard.
    ///
    /// This is only relevant for keyboard devices.
    ///
    /// # Returns
    ///
    /// the current modifier state
    #[doc(alias = "gdk_device_get_modifier_state")]
    #[doc(alias = "get_modifier_state")]
    fn modifier_state(&self) -> ModifierType {
        unsafe {
            from_glib(ffi::gdk_device_get_modifier_state(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// The name of the device, suitable for showing in a user interface.
    ///
    /// # Returns
    ///
    /// a name
    #[doc(alias = "gdk_device_get_name")]
    #[doc(alias = "get_name")]
    fn name(&self) -> glib::GString {
        unsafe { from_glib_none(ffi::gdk_device_get_name(self.as_ref().to_glib_none().0)) }
    }

    /// Retrieves whether the Num Lock modifier of the keyboard is locked.
    ///
    /// This is only relevant for keyboard devices.
    ///
    /// # Returns
    ///
    /// [`true`] if Num Lock is on for @self
    #[doc(alias = "gdk_device_get_num_lock_state")]
    #[doc(alias = "get_num_lock_state")]
    fn is_num_locked(&self) -> bool {
        unsafe {
            from_glib(ffi::gdk_device_get_num_lock_state(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Retrieves the number of touch points associated to @self.
    ///
    /// # Returns
    ///
    /// the number of touch points
    #[doc(alias = "gdk_device_get_num_touches")]
    #[doc(alias = "get_num_touches")]
    fn num_touches(&self) -> u32 {
        unsafe { ffi::gdk_device_get_num_touches(self.as_ref().to_glib_none().0) }
    }

    /// Returns the product ID of this device.
    ///
    /// This ID is retrieved from the device, and does not change.
    /// See [`vendor_id()`][Self::vendor_id()] for more information.
    ///
    /// # Returns
    ///
    /// the product ID
    #[doc(alias = "gdk_device_get_product_id")]
    #[doc(alias = "get_product_id")]
    fn product_id(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::gdk_device_get_product_id(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Retrieves whether the Scroll Lock modifier of the keyboard is locked.
    ///
    /// This is only relevant for keyboard devices.
    ///
    /// # Returns
    ///
    /// [`true`] if Scroll Lock is on for @self
    #[doc(alias = "gdk_device_get_scroll_lock_state")]
    #[doc(alias = "get_scroll_lock_state")]
    fn is_scroll_locked(&self) -> bool {
        unsafe {
            from_glib(ffi::gdk_device_get_scroll_lock_state(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Returns the [`Seat`][crate::Seat] the device belongs to.
    ///
    /// # Returns
    ///
    /// a [`Seat`][crate::Seat]
    #[doc(alias = "gdk_device_get_seat")]
    #[doc(alias = "get_seat")]
    fn seat(&self) -> Seat {
        unsafe { from_glib_none(ffi::gdk_device_get_seat(self.as_ref().to_glib_none().0)) }
    }

    /// Determines the type of the device.
    ///
    /// # Returns
    ///
    /// a [`InputSource`][crate::InputSource]
    #[doc(alias = "gdk_device_get_source")]
    #[doc(alias = "get_source")]
    fn source(&self) -> InputSource {
        unsafe { from_glib(ffi::gdk_device_get_source(self.as_ref().to_glib_none().0)) }
    }

    /// Obtains the surface underneath @self, returning the location of the
    /// device in @win_x and @win_y.
    ///
    /// Returns [`None`] if the surface tree under @self is not known to GDK
    /// (for example, belongs to another application).
    ///
    /// # Returns
    ///
    /// the [`Surface`][crate::Surface] under the
    ///   device position
    ///
    /// ## `win_x`
    /// return location for the X coordinate
    ///   of the device location relative to the surface origin
    ///
    /// ## `win_y`
    /// return location for the Y coordinate
    ///   of the device location relative to the surface origin
    #[doc(alias = "gdk_device_get_surface_at_position")]
    #[doc(alias = "get_surface_at_position")]
    fn surface_at_position(&self) -> (Option<Surface>, f64, f64) {
        unsafe {
            let mut win_x = mem::MaybeUninit::uninit();
            let mut win_y = mem::MaybeUninit::uninit();
            let ret = from_glib_none(ffi::gdk_device_get_surface_at_position(
                self.as_ref().to_glib_none().0,
                win_x.as_mut_ptr(),
                win_y.as_mut_ptr(),
            ));
            (ret, win_x.assume_init(), win_y.assume_init())
        }
    }

    /// Returns the timestamp of the last activity for this device.
    ///
    /// In practice, this means the timestamp of the last event that was
    /// received from the OS for this device. (GTK may occasionally produce
    /// events for a device that are not received from the OS, and will not
    /// update the timestamp).
    ///
    /// # Returns
    ///
    /// the timestamp of the last activity for this device
    #[cfg(feature = "v4_2")]
    #[cfg_attr(docsrs, doc(cfg(feature = "v4_2")))]
    #[doc(alias = "gdk_device_get_timestamp")]
    #[doc(alias = "get_timestamp")]
    fn timestamp(&self) -> u32 {
        unsafe { ffi::gdk_device_get_timestamp(self.as_ref().to_glib_none().0) }
    }

    /// Returns the vendor ID of this device.
    ///
    /// This ID is retrieved from the device, and does not change.
    ///
    /// This function, together with [`product_id()`][Self::product_id()],
    /// can be used to eg. compose `GSettings` paths to store settings
    /// for this device.
    ///
    /// **⚠️ The following code is in c ⚠️**
    ///
    /// ```c
    ///  static GSettings *
    ///  get_device_settings (GdkDevice *device)
    ///  {
    ///    const char *vendor, *product;
    ///    GSettings *settings;
    ///    GdkDevice *device;
    ///    char *path;
    ///
    ///    vendor = gdk_device_get_vendor_id (device);
    ///    product = gdk_device_get_product_id (device);
    ///
    ///    path = g_strdup_printf ("/org/example/app/devices/%s:%s/", vendor, product);
    ///    settings = g_settings_new_with_path (DEVICE_SCHEMA, path);
    ///    g_free (path);
    ///
    ///    return settings;
    ///  }
    /// ```
    ///
    /// # Returns
    ///
    /// the vendor ID
    #[doc(alias = "gdk_device_get_vendor_id")]
    #[doc(alias = "get_vendor_id")]
    fn vendor_id(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::gdk_device_get_vendor_id(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Determines if layouts for both right-to-left and
    /// left-to-right languages are in use on the keyboard.
    ///
    /// This is only relevant for keyboard devices.
    ///
    /// # Returns
    ///
    /// [`true`] if there are layouts with both directions, [`false`] otherwise
    #[doc(alias = "gdk_device_has_bidi_layouts")]
    fn has_bidi_layouts(&self) -> bool {
        unsafe {
            from_glib(ffi::gdk_device_has_bidi_layouts(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Number of axes in the device.
    #[doc(alias = "n-axes")]
    fn n_axes(&self) -> u32 {
        ObjectExt::property(self.as_ref(), "n-axes")
    }

    /// [`Seat`][crate::Seat] of this device.
    fn set_seat<P: IsA<Seat>>(&self, seat: Option<&P>) {
        ObjectExt::set_property(self.as_ref(), "seat", seat)
    }

    /// Emitted either when the number of either axes or keys changes.
    ///
    /// On X11 this will normally happen when the physical device
    /// routing events through the logical device changes (for
    /// example, user switches from the USB mouse to a tablet); in
    /// that case the logical device will change to reflect the axes
    /// and keys on the new physical device.
    #[doc(alias = "changed")]
    fn connect_changed<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn changed_trampoline<P: IsA<Device>, F: Fn(&P) + 'static>(
            this: *mut ffi::GdkDevice,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Device::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),
            )
        }
    }

    /// Emitted on pen/eraser devices whenever tools enter or leave proximity.
    /// ## `tool`
    /// The new current tool
    #[doc(alias = "tool-changed")]
    fn connect_tool_changed<F: Fn(&Self, &DeviceTool) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn tool_changed_trampoline<
            P: IsA<Device>,
            F: Fn(&P, &DeviceTool) + 'static,
        >(
            this: *mut ffi::GdkDevice,
            tool: *mut ffi::GdkDeviceTool,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(
                Device::from_glib_borrow(this).unsafe_cast_ref(),
                &from_glib_borrow(tool),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"tool-changed\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    tool_changed_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "caps-lock-state")]
    fn connect_caps_lock_state_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_caps_lock_state_trampoline<
            P: IsA<Device>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GdkDevice,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Device::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::caps-lock-state\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_caps_lock_state_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "direction")]
    fn connect_direction_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_direction_trampoline<P: IsA<Device>, F: Fn(&P) + 'static>(
            this: *mut ffi::GdkDevice,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Device::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::direction\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_direction_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "has-bidi-layouts")]
    fn connect_has_bidi_layouts_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_has_bidi_layouts_trampoline<
            P: IsA<Device>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GdkDevice,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Device::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::has-bidi-layouts\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_has_bidi_layouts_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "modifier-state")]
    fn connect_modifier_state_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_modifier_state_trampoline<
            P: IsA<Device>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GdkDevice,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Device::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::modifier-state\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_modifier_state_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "n-axes")]
    fn connect_n_axes_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_n_axes_trampoline<P: IsA<Device>, F: Fn(&P) + 'static>(
            this: *mut ffi::GdkDevice,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Device::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::n-axes\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_n_axes_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "num-lock-state")]
    fn connect_num_lock_state_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_num_lock_state_trampoline<
            P: IsA<Device>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GdkDevice,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Device::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::num-lock-state\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_num_lock_state_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "scroll-lock-state")]
    fn connect_scroll_lock_state_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_scroll_lock_state_trampoline<
            P: IsA<Device>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GdkDevice,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Device::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::scroll-lock-state\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_scroll_lock_state_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "seat")]
    fn connect_seat_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_seat_trampoline<P: IsA<Device>, F: Fn(&P) + 'static>(
            this: *mut ffi::GdkDevice,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Device::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::seat\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_seat_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "tool")]
    fn connect_tool_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_tool_trampoline<P: IsA<Device>, F: Fn(&P) + 'static>(
            this: *mut ffi::GdkDevice,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Device::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::tool\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_tool_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

impl<O: IsA<Device>> DeviceExt for O {}