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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 gio_sys;
use glib::object::Cast;
use glib::object::IsA;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use glib::GString;
use glib_sys;
use std::boxed::Box as Box_;
use std::fmt;
use std::mem::transmute;

glib_wrapper! {
    /// Completes partial file and directory names given a partial string by
    /// looking in the file system for clues. Can return a list of possible
    /// completion strings for widget implementations.
    ///
    /// # Implements
    ///
    /// [`FilenameCompleterExt`](trait.FilenameCompleterExt.html), [`glib::object::ObjectExt`](../glib/object/trait.ObjectExt.html)
    pub struct FilenameCompleter(Object<gio_sys::GFilenameCompleter, gio_sys::GFilenameCompleterClass, FilenameCompleterClass>);

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

impl FilenameCompleter {
    /// Creates a new filename completer.
    ///
    /// # Returns
    ///
    /// a `FilenameCompleter`.
    pub fn new() -> FilenameCompleter {
        unsafe { from_glib_full(gio_sys::g_filename_completer_new()) }
    }
}

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

pub const NONE_FILENAME_COMPLETER: Option<&FilenameCompleter> = None;

/// Trait containing all `FilenameCompleter` methods.
///
/// # Implementors
///
/// [`FilenameCompleter`](struct.FilenameCompleter.html)
pub trait FilenameCompleterExt: 'static {
    /// Obtains a completion for `initial_text` from `self`.
    /// ## `initial_text`
    /// text to be completed.
    ///
    /// # Returns
    ///
    /// a completed string, or `None` if no completion exists.
    ///  This string is not owned by GIO, so remember to `g_free` it
    ///  when finished.
    fn get_completion_suffix(&self, initial_text: &str) -> Option<GString>;

    /// Gets an array of completion strings for a given initial text.
    /// ## `initial_text`
    /// text to be completed.
    ///
    /// # Returns
    ///
    /// array of strings with possible completions for `initial_text`.
    /// This array must be freed by `g_strfreev` when finished.
    fn get_completions(&self, initial_text: &str) -> Vec<GString>;

    /// If `dirs_only` is `true`, `self` will only
    /// complete directory names, and not file names.
    /// ## `dirs_only`
    /// a `gboolean`.
    fn set_dirs_only(&self, dirs_only: bool);

    /// Emitted when the file name completion information comes available.
    fn connect_got_completion_data<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
}

impl<O: IsA<FilenameCompleter>> FilenameCompleterExt for O {
    fn get_completion_suffix(&self, initial_text: &str) -> Option<GString> {
        unsafe {
            from_glib_full(gio_sys::g_filename_completer_get_completion_suffix(
                self.as_ref().to_glib_none().0,
                initial_text.to_glib_none().0,
            ))
        }
    }

    fn get_completions(&self, initial_text: &str) -> Vec<GString> {
        unsafe {
            FromGlibPtrContainer::from_glib_full(gio_sys::g_filename_completer_get_completions(
                self.as_ref().to_glib_none().0,
                initial_text.to_glib_none().0,
            ))
        }
    }

    fn set_dirs_only(&self, dirs_only: bool) {
        unsafe {
            gio_sys::g_filename_completer_set_dirs_only(
                self.as_ref().to_glib_none().0,
                dirs_only.to_glib(),
            );
        }
    }

    fn connect_got_completion_data<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn got_completion_data_trampoline<P, F: Fn(&P) + 'static>(
            this: *mut gio_sys::GFilenameCompleter,
            f: glib_sys::gpointer,
        ) where
            P: IsA<FilenameCompleter>,
        {
            let f: &F = &*(f as *const F);
            f(&FilenameCompleter::from_glib_borrow(this).unsafe_cast())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"got-completion-data\0".as_ptr() as *const _,
                Some(transmute(
                    got_completion_data_trampoline::<Self, F> as usize,
                )),
                Box_::into_raw(f),
            )
        }
    }
}

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