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// Take a look at the license at the top of the repository in the LICENSE file.

use crate::ShortcutTrigger;
use gdk::Key;
use glib::translate::*;
use std::fmt;

glib::wrapper! {
    /// A [`ShortcutTrigger`][crate::ShortcutTrigger] that triggers when a specific mnemonic is pressed.
    ///
    /// Mnemonics require a *mnemonic modifier* (typically <kbd>Alt</kbd>) to be
    /// pressed together with the mnemonic key.
    ///
    /// ## Properties
    ///
    ///
    /// #### `keyval`
    ///  The key value for the trigger.
    ///
    /// Readable | Writeable | Construct Only
    ///
    /// # Implements
    ///
    /// [`ShortcutTriggerExt`][trait@crate::prelude::ShortcutTriggerExt], [`trait@glib::ObjectExt`], [`ShortcutTriggerExtManual`][trait@crate::prelude::ShortcutTriggerExtManual]
    pub struct MnemonicTrigger(Object<ffi::GtkMnemonicTrigger, ffi::GtkMnemonicTriggerClass>) @extends ShortcutTrigger;

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

impl MnemonicTrigger {
    /// Creates a [`ShortcutTrigger`][crate::ShortcutTrigger] that will trigger whenever the key with
    /// the given @keyval is pressed and mnemonics have been activated.
    ///
    /// Mnemonics are activated by calling code when a key event with the right
    /// modifiers is detected.
    /// ## `keyval`
    /// The keyval to trigger for
    ///
    /// # Returns
    ///
    /// A new [`ShortcutTrigger`][crate::ShortcutTrigger]
    #[doc(alias = "gtk_mnemonic_trigger_new")]
    pub fn new(keyval: Key) -> Self {
        assert_initialized_main_thread!();
        unsafe { from_glib_full(ffi::gtk_mnemonic_trigger_new(keyval.into_glib())) }
    }

    /// Gets the keyval that must be pressed to succeed triggering @self.
    ///
    /// # Returns
    ///
    /// the keyval
    #[doc(alias = "gtk_mnemonic_trigger_get_keyval")]
    #[doc(alias = "get_keyval")]
    pub fn keyval(&self) -> Key {
        unsafe { from_glib(ffi::gtk_mnemonic_trigger_get_keyval(self.to_glib_none().0)) }
    }
}

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