// 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::EventController;
use crate::Gesture;
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;

glib::wrapper! {
    /// [`GestureSingle`][crate::GestureSingle] is a subclass of [`Gesture`][crate::Gesture], optimized (although
    /// not restricted) for dealing with mouse and single-touch gestures. Under
    /// interaction, these gestures stick to the first interacting sequence, which
    /// is accessible through [`GestureSingleExt::current_sequence()`][crate::prelude::GestureSingleExt::current_sequence()] while the
    /// gesture is being interacted with.
    ///
    /// By default gestures react to both `GDK_BUTTON_PRIMARY` and touch
    /// events, [`GestureSingleExt::set_touch_only()`][crate::prelude::GestureSingleExt::set_touch_only()] can be used to change the
    /// touch behavior. Callers may also specify a different mouse button number
    /// to interact with through [`GestureSingleExt::set_button()`][crate::prelude::GestureSingleExt::set_button()], or react to any
    /// mouse button by setting 0. While the gesture is active, the button being
    /// currently pressed can be known through [`GestureSingleExt::current_button()`][crate::prelude::GestureSingleExt::current_button()].
    ///
    /// # Implements
    ///
    /// [`GestureSingleExt`][trait@crate::prelude::GestureSingleExt], [`GestureExt`][trait@crate::prelude::GestureExt], [`EventControllerExt`][trait@crate::prelude::EventControllerExt], [`trait@glib::ObjectExt`]
    #[doc(alias = "GtkGestureSingle")]
    pub struct GestureSingle(Object<ffi::GtkGestureSingle, ffi::GtkGestureSingleClass>) @extends Gesture, EventController;

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

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

/// Trait containing all [`struct@GestureSingle`] methods.
///
/// # Implementors
///
/// [`GestureDrag`][struct@crate::GestureDrag], [`GestureLongPress`][struct@crate::GestureLongPress], [`GestureMultiPress`][struct@crate::GestureMultiPress], [`GestureSingle`][struct@crate::GestureSingle], [`GestureStylus`][struct@crate::GestureStylus], [`GestureSwipe`][struct@crate::GestureSwipe]
pub trait GestureSingleExt: 'static {
    /// Returns the button number `self` listens for, or 0 if `self`
    /// reacts to any button press.
    ///
    /// # Returns
    ///
    /// The button number, or 0 for any button
    #[doc(alias = "gtk_gesture_single_get_button")]
    #[doc(alias = "get_button")]
    fn button(&self) -> u32;

    /// Returns the button number currently interacting with `self`, or 0 if there
    /// is none.
    ///
    /// # Returns
    ///
    /// The current button number
    #[doc(alias = "gtk_gesture_single_get_current_button")]
    #[doc(alias = "get_current_button")]
    fn current_button(&self) -> u32;

    /// Returns the event sequence currently interacting with `self`.
    /// This is only meaningful if [`GestureExt::is_active()`][crate::prelude::GestureExt::is_active()] returns [`true`].
    ///
    /// # Returns
    ///
    /// the current sequence
    #[doc(alias = "gtk_gesture_single_get_current_sequence")]
    #[doc(alias = "get_current_sequence")]
    fn current_sequence(&self) -> Option<gdk::EventSequence>;

    /// Gets whether a gesture is exclusive. For more information, see
    /// [`set_exclusive()`][Self::set_exclusive()].
    ///
    /// # Returns
    ///
    /// Whether the gesture is exclusive
    #[doc(alias = "gtk_gesture_single_get_exclusive")]
    #[doc(alias = "get_exclusive")]
    fn is_exclusive(&self) -> bool;

    /// Returns [`true`] if the gesture is only triggered by touch events.
    ///
    /// # Returns
    ///
    /// [`true`] if the gesture only handles touch events
    #[doc(alias = "gtk_gesture_single_get_touch_only")]
    #[doc(alias = "get_touch_only")]
    fn is_touch_only(&self) -> bool;

    /// Sets the button number `self` listens to. If non-0, every
    /// button press from a different button number will be ignored.
    /// Touch events implicitly match with button 1.
    /// ## `button`
    /// button number to listen to, or 0 for any button
    #[doc(alias = "gtk_gesture_single_set_button")]
    fn set_button(&self, button: u32);

    /// Sets whether `self` is exclusive. An exclusive gesture will
    /// only handle pointer and "pointer emulated" touch events, so at
    /// any given time, there is only one sequence able to interact with
    /// those.
    /// ## `exclusive`
    /// [`true`] to make `self` exclusive
    #[doc(alias = "gtk_gesture_single_set_exclusive")]
    fn set_exclusive(&self, exclusive: bool);

    /// If `touch_only` is [`true`], `self` will only handle events of type
    /// `GDK_TOUCH_BEGIN`, `GDK_TOUCH_UPDATE` or `GDK_TOUCH_END`. If [`false`],
    /// mouse events will be handled too.
    /// ## `touch_only`
    /// whether `self` handles only touch events
    #[doc(alias = "gtk_gesture_single_set_touch_only")]
    fn set_touch_only(&self, touch_only: bool);

    #[doc(alias = "button")]
    fn connect_button_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "exclusive")]
    fn connect_exclusive_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "touch-only")]
    fn connect_touch_only_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
}

impl<O: IsA<GestureSingle>> GestureSingleExt for O {
    fn button(&self) -> u32 {
        unsafe { ffi::gtk_gesture_single_get_button(self.as_ref().to_glib_none().0) }
    }

    fn current_button(&self) -> u32 {
        unsafe { ffi::gtk_gesture_single_get_current_button(self.as_ref().to_glib_none().0) }
    }

    fn current_sequence(&self) -> Option<gdk::EventSequence> {
        unsafe {
            from_glib_full(ffi::gtk_gesture_single_get_current_sequence(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

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

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

    fn set_button(&self, button: u32) {
        unsafe {
            ffi::gtk_gesture_single_set_button(self.as_ref().to_glib_none().0, button);
        }
    }

    fn set_exclusive(&self, exclusive: bool) {
        unsafe {
            ffi::gtk_gesture_single_set_exclusive(
                self.as_ref().to_glib_none().0,
                exclusive.into_glib(),
            );
        }
    }

    fn set_touch_only(&self, touch_only: bool) {
        unsafe {
            ffi::gtk_gesture_single_set_touch_only(
                self.as_ref().to_glib_none().0,
                touch_only.into_glib(),
            );
        }
    }

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

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

    fn connect_touch_only_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_touch_only_trampoline<
            P: IsA<GestureSingle>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GtkGestureSingle,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(GestureSingle::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::touch-only\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_touch_only_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

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