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// 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::Window;
use glib::{prelude::*, translate::*};
use std::fmt;

glib::wrapper! {
    /// [`WindowGroup`][crate::WindowGroup] makes group of windows behave like separate applications.
    ///
    /// It achieves this by limiting the effect of GTK grabs and modality
    /// to windows in the same group.
    ///
    /// A window can be a member in at most one window group at a time.
    /// Windows that have not been explicitly assigned to a group are
    /// implicitly treated like windows of the default window group.
    ///
    /// [`WindowGroup`][crate::WindowGroup] objects are referenced by each window in the group,
    /// so once you have added all windows to a [`WindowGroup`][crate::WindowGroup], you can drop
    /// the initial reference to the window group with g_object_unref(). If the
    /// windows in the window group are subsequently destroyed, then they will
    /// be removed from the window group and drop their references on the window
    /// group; when all window have been removed, the window group will be
    /// freed.
    ///
    /// # Implements
    ///
    /// [`WindowGroupExt`][trait@crate::prelude::WindowGroupExt], [`trait@glib::ObjectExt`]
    #[doc(alias = "GtkWindowGroup")]
    pub struct WindowGroup(Object<ffi::GtkWindowGroup, ffi::GtkWindowGroupClass>);

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

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

    /// Creates a new [`WindowGroup`][crate::WindowGroup] object.
    ///
    /// Modality of windows only affects windows
    /// within the same [`WindowGroup`][crate::WindowGroup].
    ///
    /// # Returns
    ///
    /// a new [`WindowGroup`][crate::WindowGroup].
    #[doc(alias = "gtk_window_group_new")]
    pub fn new() -> WindowGroup {
        assert_initialized_main_thread!();
        unsafe { from_glib_full(ffi::gtk_window_group_new()) }
    }
}

impl Default for WindowGroup {
    fn default() -> Self {
        Self::new()
    }
}

/// Trait containing all [`struct@WindowGroup`] methods.
///
/// # Implementors
///
/// [`WindowGroup`][struct@crate::WindowGroup]
pub trait WindowGroupExt: 'static {
    /// Adds a window to a [`WindowGroup`][crate::WindowGroup].
    /// ## `window`
    /// the [`Window`][crate::Window] to add
    #[doc(alias = "gtk_window_group_add_window")]
    fn add_window(&self, window: &impl IsA<Window>);

    /// Returns a list of the `GtkWindows` that belong to @self.
    ///
    /// # Returns
    ///
    /// A
    ///   newly-allocated list of windows inside the group.
    #[doc(alias = "gtk_window_group_list_windows")]
    fn list_windows(&self) -> Vec<Window>;

    /// Removes a window from a [`WindowGroup`][crate::WindowGroup].
    /// ## `window`
    /// the [`Window`][crate::Window] to remove
    #[doc(alias = "gtk_window_group_remove_window")]
    fn remove_window(&self, window: &impl IsA<Window>);
}

impl<O: IsA<WindowGroup>> WindowGroupExt for O {
    fn add_window(&self, window: &impl IsA<Window>) {
        unsafe {
            ffi::gtk_window_group_add_window(
                self.as_ref().to_glib_none().0,
                window.as_ref().to_glib_none().0,
            );
        }
    }

    fn list_windows(&self) -> Vec<Window> {
        unsafe {
            FromGlibPtrContainer::from_glib_container(ffi::gtk_window_group_list_windows(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn remove_window(&self, window: &impl IsA<Window>) {
        unsafe {
            ffi::gtk_window_group_remove_window(
                self.as_ref().to_glib_none().0,
                window.as_ref().to_glib_none().0,
            );
        }
    }
}

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