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

use crate::Accessible;
use crate::AccessibleRole;
use glib::object::IsA;
use glib::object::ObjectType as ObjectType_;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use glib::StaticType;
use glib::ToValue;
use std::boxed::Box as Box_;
use std::fmt;
use std::mem::transmute;

glib::wrapper! {
    /// [`ATContext`][crate::ATContext] is an abstract class provided by GTK to communicate to
    /// platform-specific assistive technologies API.
    ///
    /// Each platform supported by GTK implements a [`ATContext`][crate::ATContext] subclass, and
    /// is responsible for updating the accessible state in response to state
    /// changes in [`Accessible`][crate::Accessible].
    ///
    /// This is an Abstract Base Class, you cannot instantiate it.
    ///
    /// # Implements
    ///
    /// [`trait@glib::ObjectExt`]
    #[doc(alias = "GtkATContext")]
    pub struct ATContext(Object<ffi::GtkATContext, ffi::GtkATContextClass>);

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

impl ATContext {
    /// Creates a new [`ATContext`][crate::ATContext] instance for the given accessible role,
    /// accessible instance, and display connection.
    ///
    /// The [`ATContext`][crate::ATContext] implementation being instantiated will depend on the
    /// platform.
    /// ## `accessible_role`
    /// the accessible role used by the [`ATContext`][crate::ATContext]
    /// ## `accessible`
    /// the [`Accessible`][crate::Accessible] implementation using the [`ATContext`][crate::ATContext]
    /// ## `display`
    /// the [`gdk::Display`][crate::gdk::Display] used by the [`ATContext`][crate::ATContext]
    ///
    /// # Returns
    ///
    /// the [`ATContext`][crate::ATContext]
    #[doc(alias = "gtk_at_context_create")]
    pub fn create(
        accessible_role: AccessibleRole,
        accessible: &impl IsA<Accessible>,
        display: &impl IsA<gdk::Display>,
    ) -> Option<ATContext> {
        skip_assert_initialized!();
        unsafe {
            from_glib_full(ffi::gtk_at_context_create(
                accessible_role.into_glib(),
                accessible.as_ref().to_glib_none().0,
                display.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Retrieves the [`Accessible`][crate::Accessible] using this context.
    ///
    /// # Returns
    ///
    /// a [`Accessible`][crate::Accessible]
    #[doc(alias = "gtk_at_context_get_accessible")]
    #[doc(alias = "get_accessible")]
    pub fn accessible(&self) -> Accessible {
        unsafe { from_glib_none(ffi::gtk_at_context_get_accessible(self.to_glib_none().0)) }
    }

    /// Retrieves the accessible role of this context.
    ///
    /// # Returns
    ///
    /// a [`AccessibleRole`][crate::AccessibleRole]
    #[doc(alias = "gtk_at_context_get_accessible_role")]
    #[doc(alias = "get_accessible_role")]
    pub fn accessible_role(&self) -> AccessibleRole {
        unsafe {
            from_glib(ffi::gtk_at_context_get_accessible_role(
                self.to_glib_none().0,
            ))
        }
    }

    /// The accessible role used by the AT context.
    ///
    /// Depending on the given role, different states and properties can be
    /// set or retrieved.
    #[doc(alias = "accessible-role")]
    pub fn set_accessible_role(&self, accessible_role: AccessibleRole) {
        glib::ObjectExt::set_property(self, "accessible-role", &accessible_role)
    }

    /// The [`gdk::Display`][crate::gdk::Display] for the [`ATContext`][crate::ATContext].
    pub fn display(&self) -> Option<gdk::Display> {
        glib::ObjectExt::property(self, "display")
    }

    /// The [`gdk::Display`][crate::gdk::Display] for the [`ATContext`][crate::ATContext].
    pub fn set_display<P: IsA<gdk::Display>>(&self, display: Option<&P>) {
        glib::ObjectExt::set_property(self, "display", &display)
    }

    /// Emitted when the attributes of the accessible for the
    /// [`ATContext`][crate::ATContext] instance change.
    #[doc(alias = "state-change")]
    pub fn connect_state_change<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn state_change_trampoline<F: Fn(&ATContext) + 'static>(
            this: *mut ffi::GtkATContext,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"state-change\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    state_change_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "accessible-role")]
    pub fn connect_accessible_role_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_accessible_role_trampoline<F: Fn(&ATContext) + 'static>(
            this: *mut ffi::GtkATContext,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::accessible-role\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_accessible_role_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[doc(alias = "display")]
    pub fn connect_display_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_display_trampoline<F: Fn(&ATContext) + 'static>(
            this: *mut ffi::GtkATContext,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(&from_glib_borrow(this))
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::display\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_display_trampoline::<F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

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