// 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 gio_sys;
use glib;
use glib::object::Cast;
use glib::object::IsA;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use glib_sys;
use gobject_sys;
use std::boxed::Box as Box_;
use std::fmt;
use std::mem::transmute;
use std::pin::Pin;
use std::ptr;
use Cancellable;

glib_wrapper! {
    /// A `Permission` represents the status of the caller's permission to
    /// perform a certain action.
    ///
    /// You can query if the action is currently allowed and if it is
    /// possible to acquire the permission so that the action will be allowed
    /// in the future.
    ///
    /// There is also an API to actually acquire the permission and one to
    /// release it.
    ///
    /// As an example, a `Permission` might represent the ability for the
    /// user to write to a `Settings` object. This `Permission` object could
    /// then be used to decide if it is appropriate to show a "Click here to
    /// unlock" button in a dialog and to provide the mechanism to invoke
    /// when that button is clicked.
    ///
    /// # Implements
    ///
    /// [`PermissionExt`](trait.PermissionExt.html), [`glib::object::ObjectExt`](../glib/object/trait.ObjectExt.html)
    pub struct Permission(Object<gio_sys::GPermission, gio_sys::GPermissionClass, PermissionClass>);

    match fn {
        get_type => || gio_sys::g_permission_get_type(),
    }
}

pub const NONE_PERMISSION: Option<&Permission> = None;

/// Trait containing all `Permission` methods.
///
/// # Implementors
///
/// [`Permission`](struct.Permission.html), [`SimplePermission`](struct.SimplePermission.html)
pub trait PermissionExt: 'static {
    /// Attempts to acquire the permission represented by `self`.
    ///
    /// The precise method by which this happens depends on the permission
    /// and the underlying authentication mechanism. A simple example is
    /// that a dialog may appear asking the user to enter their password.
    ///
    /// You should check with `PermissionExt::get_can_acquire` before calling
    /// this function.
    ///
    /// If the permission is acquired then `true` is returned. Otherwise,
    /// `false` is returned and `error` is set appropriately.
    ///
    /// This call is blocking, likely for a very long time (in the case that
    /// user interaction is required). See `PermissionExt::acquire_async` for
    /// the non-blocking version.
    /// ## `cancellable`
    /// a `Cancellable`, or `None`
    ///
    /// # Returns
    ///
    /// `true` if the permission was successfully acquired
    fn acquire<P: IsA<Cancellable>>(&self, cancellable: Option<&P>) -> Result<(), glib::Error>;

    /// Attempts to acquire the permission represented by `self`.
    ///
    /// This is the first half of the asynchronous version of
    /// `PermissionExt::acquire`.
    /// ## `cancellable`
    /// a `Cancellable`, or `None`
    /// ## `callback`
    /// the `GAsyncReadyCallback` to call when done
    /// ## `user_data`
    /// the user data to pass to `callback`
    fn acquire_async<P: IsA<Cancellable>, Q: FnOnce(Result<(), glib::Error>) + Send + 'static>(
        &self,
        cancellable: Option<&P>,
        callback: Q,
    );

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

    /// Gets the value of the 'allowed' property. This property is `true` if
    /// the caller currently has permission to perform the action that
    /// `self` represents the permission to perform.
    ///
    /// # Returns
    ///
    /// the value of the 'allowed' property
    fn get_allowed(&self) -> bool;

    /// Gets the value of the 'can-acquire' property. This property is `true`
    /// if it is generally possible to acquire the permission by calling
    /// `PermissionExt::acquire`.
    ///
    /// # Returns
    ///
    /// the value of the 'can-acquire' property
    fn get_can_acquire(&self) -> bool;

    /// Gets the value of the 'can-release' property. This property is `true`
    /// if it is generally possible to release the permission by calling
    /// `PermissionExt::release`.
    ///
    /// # Returns
    ///
    /// the value of the 'can-release' property
    fn get_can_release(&self) -> bool;

    /// This function is called by the `Permission` implementation to update
    /// the properties of the permission. You should never call this
    /// function except from a `Permission` implementation.
    ///
    /// GObject notify signals are generated, as appropriate.
    /// ## `allowed`
    /// the new value for the 'allowed' property
    /// ## `can_acquire`
    /// the new value for the 'can-acquire' property
    /// ## `can_release`
    /// the new value for the 'can-release' property
    fn impl_update(&self, allowed: bool, can_acquire: bool, can_release: bool);

    /// Attempts to release the permission represented by `self`.
    ///
    /// The precise method by which this happens depends on the permission
    /// and the underlying authentication mechanism. In most cases the
    /// permission will be dropped immediately without further action.
    ///
    /// You should check with `PermissionExt::get_can_release` before calling
    /// this function.
    ///
    /// If the permission is released then `true` is returned. Otherwise,
    /// `false` is returned and `error` is set appropriately.
    ///
    /// This call is blocking, likely for a very long time (in the case that
    /// user interaction is required). See `PermissionExt::release_async` for
    /// the non-blocking version.
    /// ## `cancellable`
    /// a `Cancellable`, or `None`
    ///
    /// # Returns
    ///
    /// `true` if the permission was successfully released
    fn release<P: IsA<Cancellable>>(&self, cancellable: Option<&P>) -> Result<(), glib::Error>;

    /// Attempts to release the permission represented by `self`.
    ///
    /// This is the first half of the asynchronous version of
    /// `PermissionExt::release`.
    /// ## `cancellable`
    /// a `Cancellable`, or `None`
    /// ## `callback`
    /// the `GAsyncReadyCallback` to call when done
    /// ## `user_data`
    /// the user data to pass to `callback`
    fn release_async<P: IsA<Cancellable>, Q: FnOnce(Result<(), glib::Error>) + Send + 'static>(
        &self,
        cancellable: Option<&P>,
        callback: Q,
    );

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

    fn connect_property_allowed_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    fn connect_property_can_acquire_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    fn connect_property_can_release_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
}

impl<O: IsA<Permission>> PermissionExt for O {
    fn acquire<P: IsA<Cancellable>>(&self, cancellable: Option<&P>) -> Result<(), glib::Error> {
        unsafe {
            let mut error = ptr::null_mut();
            let _ = gio_sys::g_permission_acquire(
                self.as_ref().to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            if error.is_null() {
                Ok(())
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    fn acquire_async<P: IsA<Cancellable>, Q: FnOnce(Result<(), glib::Error>) + Send + 'static>(
        &self,
        cancellable: Option<&P>,
        callback: Q,
    ) {
        let user_data: Box_<Q> = Box_::new(callback);
        unsafe extern "C" fn acquire_async_trampoline<
            Q: FnOnce(Result<(), glib::Error>) + Send + 'static,
        >(
            _source_object: *mut gobject_sys::GObject,
            res: *mut gio_sys::GAsyncResult,
            user_data: glib_sys::gpointer,
        ) {
            let mut error = ptr::null_mut();
            let _ = gio_sys::g_permission_acquire_finish(_source_object as *mut _, res, &mut error);
            let result = if error.is_null() {
                Ok(())
            } else {
                Err(from_glib_full(error))
            };
            let callback: Box_<Q> = Box_::from_raw(user_data as *mut _);
            callback(result);
        }
        let callback = acquire_async_trampoline::<Q>;
        unsafe {
            gio_sys::g_permission_acquire_async(
                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 acquire_async_future(
        &self,
    ) -> Pin<Box_<dyn std::future::Future<Output = Result<(), glib::Error>> + 'static>> {
        Box_::pin(crate::GioFuture::new(self, move |obj, send| {
            let cancellable = Cancellable::new();
            obj.acquire_async(Some(&cancellable), move |res| {
                send.resolve(res);
            });

            cancellable
        }))
    }

    fn get_allowed(&self) -> bool {
        unsafe {
            from_glib(gio_sys::g_permission_get_allowed(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn get_can_acquire(&self) -> bool {
        unsafe {
            from_glib(gio_sys::g_permission_get_can_acquire(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn get_can_release(&self) -> bool {
        unsafe {
            from_glib(gio_sys::g_permission_get_can_release(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn impl_update(&self, allowed: bool, can_acquire: bool, can_release: bool) {
        unsafe {
            gio_sys::g_permission_impl_update(
                self.as_ref().to_glib_none().0,
                allowed.to_glib(),
                can_acquire.to_glib(),
                can_release.to_glib(),
            );
        }
    }

    fn release<P: IsA<Cancellable>>(&self, cancellable: Option<&P>) -> Result<(), glib::Error> {
        unsafe {
            let mut error = ptr::null_mut();
            let _ = gio_sys::g_permission_release(
                self.as_ref().to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            if error.is_null() {
                Ok(())
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    fn release_async<P: IsA<Cancellable>, Q: FnOnce(Result<(), glib::Error>) + Send + 'static>(
        &self,
        cancellable: Option<&P>,
        callback: Q,
    ) {
        let user_data: Box_<Q> = Box_::new(callback);
        unsafe extern "C" fn release_async_trampoline<
            Q: FnOnce(Result<(), glib::Error>) + Send + 'static,
        >(
            _source_object: *mut gobject_sys::GObject,
            res: *mut gio_sys::GAsyncResult,
            user_data: glib_sys::gpointer,
        ) {
            let mut error = ptr::null_mut();
            let _ = gio_sys::g_permission_release_finish(_source_object as *mut _, res, &mut error);
            let result = if error.is_null() {
                Ok(())
            } else {
                Err(from_glib_full(error))
            };
            let callback: Box_<Q> = Box_::from_raw(user_data as *mut _);
            callback(result);
        }
        let callback = release_async_trampoline::<Q>;
        unsafe {
            gio_sys::g_permission_release_async(
                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 release_async_future(
        &self,
    ) -> Pin<Box_<dyn std::future::Future<Output = Result<(), glib::Error>> + 'static>> {
        Box_::pin(crate::GioFuture::new(self, move |obj, send| {
            let cancellable = Cancellable::new();
            obj.release_async(Some(&cancellable), move |res| {
                send.resolve(res);
            });

            cancellable
        }))
    }

    fn connect_property_allowed_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_allowed_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gio_sys::GPermission,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<Permission>,
        {
            let f: &F = &*(f as *const F);
            f(&Permission::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::allowed\0".as_ptr() as *const _,
                Some(transmute(notify_allowed_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_can_acquire_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_can_acquire_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gio_sys::GPermission,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<Permission>,
        {
            let f: &F = &*(f as *const F);
            f(&Permission::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::can-acquire\0".as_ptr() as *const _,
                Some(transmute(notify_can_acquire_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_property_can_release_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_can_release_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gio_sys::GPermission,
            _param_spec: glib_sys::gpointer,
            f: glib_sys::gpointer,
        ) where
            P: IsA<Permission>,
        {
            let f: &F = &*(f as *const F);
            f(&Permission::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::can-release\0".as_ptr() as *const _,
                Some(transmute(notify_can_release_trampoline::<Self, F> as usize)),
                Box_::into_raw(f),
            )
        }
    }
}

impl fmt::Display for Permission {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "Permission")
    }
}