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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::ActionGroup;
use crate::ActionMap;
use crate::ApplicationCommandLine;
use crate::ApplicationFlags;
use crate::Cancellable;
use crate::DBusConnection;
use crate::File;
use crate::Notification;
use glib::object::Cast;
use glib::object::IsA;
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;
use std::ptr;

glib::wrapper! {
    /// A [`Application`][crate::Application] is the foundation of an application. It wraps some
    /// low-level platform-specific services and is intended to act as the
    /// foundation for higher-level application classes such as
    /// `GtkApplication` or `MxApplication`. In general, you should not use
    /// this class outside of a higher level framework.
    ///
    /// GApplication provides convenient life cycle management by maintaining
    /// a "use count" for the primary application instance. The use count can
    /// be changed using [`ApplicationExt::hold()`][crate::prelude::ApplicationExt::hold()] and [`ApplicationExt::release()`][crate::prelude::ApplicationExt::release()]. If
    /// it drops to zero, the application exits. Higher-level classes such as
    /// `GtkApplication` employ the use count to ensure that the application
    /// stays alive as long as it has any opened windows.
    ///
    /// Another feature that GApplication (optionally) provides is process
    /// uniqueness. Applications can make use of this functionality by
    /// providing a unique application ID. If given, only one application
    /// with this ID can be running at a time per session. The session
    /// concept is platform-dependent, but corresponds roughly to a graphical
    /// desktop login. When your application is launched again, its
    /// arguments are passed through platform communication to the already
    /// running program. The already running instance of the program is
    /// called the "primary instance"; for non-unique applications this is
    /// always the current instance. On Linux, the D-Bus session bus
    /// is used for communication.
    ///
    /// The use of [`Application`][crate::Application] differs from some other commonly-used
    /// uniqueness libraries (such as libunique) in important ways. The
    /// application is not expected to manually register itself and check
    /// if it is the primary instance. Instead, the `main()` function of a
    /// [`Application`][crate::Application] should do very little more than instantiating the
    /// application instance, possibly connecting signal handlers, then
    /// calling [`ApplicationExtManual::run()`][crate::prelude::ApplicationExtManual::run()]. All checks for uniqueness are done
    /// internally. If the application is the primary instance then the
    /// startup signal is emitted and the mainloop runs. If the application
    /// is not the primary instance then a signal is sent to the primary
    /// instance and [`ApplicationExtManual::run()`][crate::prelude::ApplicationExtManual::run()] promptly returns. See the code
    /// examples below.
    ///
    /// If used, the expected form of an application identifier is the same as
    /// that of of a
    /// [D-Bus well-known bus name](https://dbus.freedesktop.org/doc/dbus-specification.html`message`-protocol-names-bus).
    /// Examples include: `com.example.MyApp`, `org.example.internal_apps.Calculator`,
    /// `org._7_zip.Archiver`.
    /// For details on valid application identifiers, see [`id_is_valid()`][Self::id_is_valid()].
    ///
    /// On Linux, the application identifier is claimed as a well-known bus name
    /// on the user's session bus. This means that the uniqueness of your
    /// application is scoped to the current session. It also means that your
    /// application may provide additional services (through registration of other
    /// object paths) at that bus name. The registration of these object paths
    /// should be done with the shared GDBus session bus. Note that due to the
    /// internal architecture of GDBus, method calls can be dispatched at any time
    /// (even if a main loop is not running). For this reason, you must ensure that
    /// any object paths that you wish to register are registered before [`Application`][crate::Application]
    /// attempts to acquire the bus name of your application (which happens in
    /// [`ApplicationExt::register()`][crate::prelude::ApplicationExt::register()]). Unfortunately, this means that you cannot use
    /// [`ApplicationExt::is_remote()`][crate::prelude::ApplicationExt::is_remote()] to decide if you want to register object paths.
    ///
    /// GApplication also implements the [`ActionGroup`][crate::ActionGroup] and [`ActionMap`][crate::ActionMap]
    /// interfaces and lets you easily export actions by adding them with
    /// [`ActionMapExt::add_action()`][crate::prelude::ActionMapExt::add_action()]. When invoking an action by calling
    /// [`ActionGroupExt::activate_action()`][crate::prelude::ActionGroupExt::activate_action()] on the application, it is always
    /// invoked in the primary instance. The actions are also exported on
    /// the session bus, and GIO provides the [`DBusActionGroup`][crate::DBusActionGroup] wrapper to
    /// conveniently access them remotely. GIO provides a [`DBusMenuModel`][crate::DBusMenuModel] wrapper
    /// for remote access to exported `GMenuModels`.
    ///
    /// There is a number of different entry points into a GApplication:
    ///
    /// - via 'Activate' (i.e. just starting the application)
    ///
    /// - via 'Open' (i.e. opening some files)
    ///
    /// - by handling a command-line
    ///
    /// - via activating an action
    ///
    /// The `signal::Application::startup` signal lets you handle the application
    /// initialization for all of these in a single place.
    ///
    /// Regardless of which of these entry points is used to start the
    /// application, GApplication passes some ‘platform data’ from the
    /// launching instance to the primary instance, in the form of a
    /// [`glib::Variant`][struct@crate::glib::Variant] dictionary mapping strings to variants. To use platform
    /// data, override the `before_emit` or `after_emit` virtual functions
    /// in your [`Application`][crate::Application] subclass. When dealing with
    /// [`ApplicationCommandLine`][crate::ApplicationCommandLine] objects, the platform data is
    /// directly available via [`ApplicationCommandLineExt::cwd()`][crate::prelude::ApplicationCommandLineExt::cwd()],
    /// [`ApplicationCommandLineExt::environ()`][crate::prelude::ApplicationCommandLineExt::environ()] and
    /// [`ApplicationCommandLineExt::platform_data()`][crate::prelude::ApplicationCommandLineExt::platform_data()].
    ///
    /// As the name indicates, the platform data may vary depending on the
    /// operating system, but it always includes the current directory (key
    /// "cwd"), and optionally the environment (ie the set of environment
    /// variables and their values) of the calling process (key "environ").
    /// The environment is only added to the platform data if the
    /// [`ApplicationFlags::SEND_ENVIRONMENT`][crate::ApplicationFlags::SEND_ENVIRONMENT] flag is set. [`Application`][crate::Application] subclasses
    /// can add their own platform data by overriding the `add_platform_data`
    /// virtual function. For instance, `GtkApplication` adds startup notification
    /// data in this way.
    ///
    /// To parse commandline arguments you may handle the
    /// `signal::Application::command-line` signal or override the `local_command_line()`
    /// vfunc, to parse them in either the primary instance or the local instance,
    /// respectively.
    ///
    /// For an example of opening files with a GApplication, see
    /// [gapplication-example-open.c](https://gitlab.gnome.org/GNOME/glib/-/blob/HEAD/gio/tests/gapplication-example-open.c).
    ///
    /// For an example of using actions with GApplication, see
    /// [gapplication-example-actions.c](https://gitlab.gnome.org/GNOME/glib/-/blob/HEAD/gio/tests/gapplication-example-actions.c).
    ///
    /// For an example of using extra D-Bus hooks with GApplication, see
    /// [gapplication-example-dbushooks.c](https://gitlab.gnome.org/GNOME/glib/-/blob/HEAD/gio/tests/gapplication-example-dbushooks.c).
    ///
    /// # Implements
    ///
    /// [`ApplicationExt`][trait@crate::prelude::ApplicationExt], [`trait@glib::ObjectExt`], [`ActionGroupExt`][trait@crate::prelude::ActionGroupExt], [`ActionMapExt`][trait@crate::prelude::ActionMapExt], [`ApplicationExtManual`][trait@crate::prelude::ApplicationExtManual]
    #[doc(alias = "GApplication")]
    pub struct Application(Object<ffi::GApplication, ffi::GApplicationClass>) @implements ActionGroup, ActionMap;

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

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

    /// Creates a new [`Application`][crate::Application] instance.
    ///
    /// If non-[`None`], the application id must be valid. See
    /// [`id_is_valid()`][Self::id_is_valid()].
    ///
    /// If no application ID is given then some features of [`Application`][crate::Application]
    /// (most notably application uniqueness) will be disabled.
    /// ## `application_id`
    /// the application id
    /// ## `flags`
    /// the application flags
    ///
    /// # Returns
    ///
    /// a new [`Application`][crate::Application] instance
    #[doc(alias = "g_application_new")]
    pub fn new(application_id: Option<&str>, flags: ApplicationFlags) -> Application {
        unsafe {
            from_glib_full(ffi::g_application_new(
                application_id.to_glib_none().0,
                flags.into_glib(),
            ))
        }
    }

    // rustdoc-stripper-ignore-next
    /// Creates a new builder-pattern struct instance to construct [`Application`] objects.
    ///
    /// This method returns an instance of [`ApplicationBuilder`](crate::builders::ApplicationBuilder) which can be used to create [`Application`] objects.
    pub fn builder() -> ApplicationBuilder {
        ApplicationBuilder::default()
    }

    /// Returns the default [`Application`][crate::Application] instance for this process.
    ///
    /// Normally there is only one [`Application`][crate::Application] per process and it becomes
    /// the default when it is created. You can exercise more control over
    /// this by using [`ApplicationExt::set_default()`][crate::prelude::ApplicationExt::set_default()].
    ///
    /// If there is no default application then [`None`] is returned.
    ///
    /// # Returns
    ///
    /// the default application for this process, or [`None`]
    #[doc(alias = "g_application_get_default")]
    #[doc(alias = "get_default")]
    pub fn default() -> Option<Application> {
        unsafe { from_glib_none(ffi::g_application_get_default()) }
    }

    /// Checks if `application_id` is a valid application identifier.
    ///
    /// A valid ID is required for calls to [`new()`][Self::new()] and
    /// [`ApplicationExt::set_application_id()`][crate::prelude::ApplicationExt::set_application_id()].
    ///
    /// Application identifiers follow the same format as
    /// [D-Bus well-known bus names](https://dbus.freedesktop.org/doc/dbus-specification.html`message`-protocol-names-bus).
    /// For convenience, the restrictions on application identifiers are
    /// reproduced here:
    ///
    /// - Application identifiers are composed of 1 or more elements separated by a
    ///  period (`.`) character. All elements must contain at least one character.
    ///
    /// - Each element must only contain the ASCII characters `[A-Z][a-z][0-9]_-`,
    ///  with `-` discouraged in new application identifiers. Each element must not
    ///  begin with a digit.
    ///
    /// - Application identifiers must contain at least one `.` (period) character
    ///  (and thus at least two elements).
    ///
    /// - Application identifiers must not begin with a `.` (period) character.
    ///
    /// - Application identifiers must not exceed 255 characters.
    ///
    /// Note that the hyphen (`-`) character is allowed in application identifiers,
    /// but is problematic or not allowed in various specifications and APIs that
    /// refer to D-Bus, such as
    /// [Flatpak application IDs](http://docs.flatpak.org/en/latest/introduction.html`identifiers`),
    /// the
    /// [`DBusActivatable` interface in the Desktop Entry Specification](https://specifications.freedesktop.org/desktop-entry-spec/desktop-entry-spec-latest.html`dbus`),
    /// and the convention that an application's "main" interface and object path
    /// resemble its application identifier and bus name. To avoid situations that
    /// require special-case handling, it is recommended that new application
    /// identifiers consistently replace hyphens with underscores.
    ///
    /// Like D-Bus interface names, application identifiers should start with the
    /// reversed DNS domain name of the author of the interface (in lower-case), and
    /// it is conventional for the rest of the application identifier to consist of
    /// words run together, with initial capital letters.
    ///
    /// As with D-Bus interface names, if the author's DNS domain name contains
    /// hyphen/minus characters they should be replaced by underscores, and if it
    /// contains leading digits they should be escaped by prepending an underscore.
    /// For example, if the owner of 7-zip.org used an application identifier for an
    /// archiving application, it might be named `org._7_zip.Archiver`.
    /// ## `application_id`
    /// a potential application identifier
    ///
    /// # Returns
    ///
    /// [`true`] if `application_id` is valid
    #[doc(alias = "g_application_id_is_valid")]
    pub fn id_is_valid(application_id: &str) -> bool {
        unsafe {
            from_glib(ffi::g_application_id_is_valid(
                application_id.to_glib_none().0,
            ))
        }
    }
}

impl Default for Application {
    fn default() -> Self {
        glib::object::Object::new::<Self>(&[])
            .expect("Can't construct Application object with default parameters")
    }
}

#[derive(Clone, Default)]
// rustdoc-stripper-ignore-next
/// A [builder-pattern] type to construct [`Application`] objects.
///
/// [builder-pattern]: https://doc.rust-lang.org/1.0.0/style/ownership/builders.html
#[must_use = "The builder must be built to be used"]
pub struct ApplicationBuilder {
    action_group: Option<ActionGroup>,
    application_id: Option<String>,
    flags: Option<ApplicationFlags>,
    inactivity_timeout: Option<u32>,
    resource_base_path: Option<String>,
}

impl ApplicationBuilder {
    // rustdoc-stripper-ignore-next
    /// Create a new [`ApplicationBuilder`].
    pub fn new() -> Self {
        Self::default()
    }

    // rustdoc-stripper-ignore-next
    /// Build the [`Application`].
    #[must_use = "Building the object from the builder is usually expensive and is not expected to have side effects"]
    pub fn build(self) -> Application {
        let mut properties: Vec<(&str, &dyn ToValue)> = vec![];
        if let Some(ref action_group) = self.action_group {
            properties.push(("action-group", action_group));
        }
        if let Some(ref application_id) = self.application_id {
            properties.push(("application-id", application_id));
        }
        if let Some(ref flags) = self.flags {
            properties.push(("flags", flags));
        }
        if let Some(ref inactivity_timeout) = self.inactivity_timeout {
            properties.push(("inactivity-timeout", inactivity_timeout));
        }
        if let Some(ref resource_base_path) = self.resource_base_path {
            properties.push(("resource-base-path", resource_base_path));
        }
        glib::Object::new::<Application>(&properties)
            .expect("Failed to create an instance of Application")
    }

    pub fn action_group(mut self, action_group: &impl IsA<ActionGroup>) -> Self {
        self.action_group = Some(action_group.clone().upcast());
        self
    }

    pub fn application_id(mut self, application_id: &str) -> Self {
        self.application_id = Some(application_id.to_string());
        self
    }

    pub fn flags(mut self, flags: ApplicationFlags) -> Self {
        self.flags = Some(flags);
        self
    }

    pub fn inactivity_timeout(mut self, inactivity_timeout: u32) -> Self {
        self.inactivity_timeout = Some(inactivity_timeout);
        self
    }

    pub fn resource_base_path(mut self, resource_base_path: &str) -> Self {
        self.resource_base_path = Some(resource_base_path.to_string());
        self
    }
}

/// Trait containing all [`struct@Application`] methods.
///
/// # Implementors
///
/// [`Application`][struct@crate::Application]
pub trait ApplicationExt: 'static {
    /// Activates the application.
    ///
    /// In essence, this results in the `signal::Application::activate` signal being
    /// emitted in the primary instance.
    ///
    /// The application must be registered before calling this function.
    #[doc(alias = "g_application_activate")]
    fn activate(&self);

    /// Add an option to be handled by `self`.
    ///
    /// Calling this function is the equivalent of calling
    /// `g_application_add_main_option_entries()` with a single `GOptionEntry`
    /// that has its arg_data member set to [`None`].
    ///
    /// The parsed arguments will be packed into a [`glib::VariantDict`][crate::glib::VariantDict] which
    /// is passed to `signal::Application::handle-local-options`. If
    /// [`ApplicationFlags::HANDLES_COMMAND_LINE`][crate::ApplicationFlags::HANDLES_COMMAND_LINE] is set, then it will also
    /// be sent to the primary instance. See
    /// `g_application_add_main_option_entries()` for more details.
    ///
    /// See `GOptionEntry` for more documentation of the arguments.
    /// ## `long_name`
    /// the long name of an option used to specify it in a commandline
    /// ## `short_name`
    /// the short name of an option
    /// ## `flags`
    /// flags from [`glib::OptionFlags`][crate::glib::OptionFlags]
    /// ## `arg`
    /// the type of the option, as a [`glib::OptionArg`][crate::glib::OptionArg]
    /// ## `description`
    /// the description for the option in `--help` output
    /// ## `arg_description`
    /// the placeholder to use for the extra argument
    ///  parsed by the option in `--help` output
    #[doc(alias = "g_application_add_main_option")]
    fn add_main_option(
        &self,
        long_name: &str,
        short_name: glib::Char,
        flags: glib::OptionFlags,
        arg: glib::OptionArg,
        description: &str,
        arg_description: Option<&str>,
    );

    //#[doc(alias = "g_application_add_main_option_entries")]
    //fn add_main_option_entries(&self, entries: /*Ignored*/&[glib::OptionEntry]);

    //#[doc(alias = "g_application_add_option_group")]
    //fn add_option_group(&self, group: /*Ignored*/&glib::OptionGroup);

    /// Marks `self` as busy (see [`mark_busy()`][Self::mark_busy()]) while
    /// `property` on `object` is [`true`].
    ///
    /// The binding holds a reference to `self` while it is active, but
    /// not to `object`. Instead, the binding is destroyed when `object` is
    /// finalized.
    /// ## `object`
    /// a [`glib::Object`][crate::glib::Object]
    /// ## `property`
    /// the name of a boolean property of `object`
    #[doc(alias = "g_application_bind_busy_property")]
    fn bind_busy_property(&self, object: &impl IsA<glib::Object>, property: &str);

    /// Gets the unique identifier for `self`.
    ///
    /// # Returns
    ///
    /// the identifier for `self`, owned by `self`
    #[doc(alias = "g_application_get_application_id")]
    #[doc(alias = "get_application_id")]
    fn application_id(&self) -> Option<glib::GString>;

    /// Gets the [`DBusConnection`][crate::DBusConnection] being used by the application, or [`None`].
    ///
    /// If [`Application`][crate::Application] is using its D-Bus backend then this function will
    /// return the [`DBusConnection`][crate::DBusConnection] being used for uniqueness and
    /// communication with the desktop environment and other instances of the
    /// application.
    ///
    /// If [`Application`][crate::Application] is not using D-Bus then this function will return
    /// [`None`]. This includes the situation where the D-Bus backend would
    /// normally be in use but we were unable to connect to the bus.
    ///
    /// This function must not be called before the application has been
    /// registered. See [`is_registered()`][Self::is_registered()].
    ///
    /// # Returns
    ///
    /// a [`DBusConnection`][crate::DBusConnection], or [`None`]
    #[doc(alias = "g_application_get_dbus_connection")]
    #[doc(alias = "get_dbus_connection")]
    fn dbus_connection(&self) -> Option<DBusConnection>;

    /// Gets the D-Bus object path being used by the application, or [`None`].
    ///
    /// If [`Application`][crate::Application] is using its D-Bus backend then this function will
    /// return the D-Bus object path that [`Application`][crate::Application] is using. If the
    /// application is the primary instance then there is an object published
    /// at this path. If the application is not the primary instance then
    /// the result of this function is undefined.
    ///
    /// If [`Application`][crate::Application] is not using D-Bus then this function will return
    /// [`None`]. This includes the situation where the D-Bus backend would
    /// normally be in use but we were unable to connect to the bus.
    ///
    /// This function must not be called before the application has been
    /// registered. See [`is_registered()`][Self::is_registered()].
    ///
    /// # Returns
    ///
    /// the object path, or [`None`]
    #[doc(alias = "g_application_get_dbus_object_path")]
    #[doc(alias = "get_dbus_object_path")]
    fn dbus_object_path(&self) -> Option<glib::GString>;

    /// Gets the flags for `self`.
    ///
    /// See [`ApplicationFlags`][crate::ApplicationFlags].
    ///
    /// # Returns
    ///
    /// the flags for `self`
    #[doc(alias = "g_application_get_flags")]
    #[doc(alias = "get_flags")]
    fn flags(&self) -> ApplicationFlags;

    /// Gets the current inactivity timeout for the application.
    ///
    /// This is the amount of time (in milliseconds) after the last call to
    /// [`release()`][Self::release()] before the application stops running.
    ///
    /// # Returns
    ///
    /// the timeout, in milliseconds
    #[doc(alias = "g_application_get_inactivity_timeout")]
    #[doc(alias = "get_inactivity_timeout")]
    fn inactivity_timeout(&self) -> u32;

    /// Gets the application's current busy state, as set through
    /// [`mark_busy()`][Self::mark_busy()] or [`bind_busy_property()`][Self::bind_busy_property()].
    ///
    /// # Returns
    ///
    /// [`true`] if `self` is currently marked as busy
    #[doc(alias = "g_application_get_is_busy")]
    #[doc(alias = "get_is_busy")]
    fn is_busy(&self) -> bool;

    /// Checks if `self` is registered.
    ///
    /// An application is registered if [`register()`][Self::register()] has been
    /// successfully called.
    ///
    /// # Returns
    ///
    /// [`true`] if `self` is registered
    #[doc(alias = "g_application_get_is_registered")]
    #[doc(alias = "get_is_registered")]
    fn is_registered(&self) -> bool;

    /// Checks if `self` is remote.
    ///
    /// If `self` is remote then it means that another instance of
    /// application already exists (the 'primary' instance). Calls to
    /// perform actions on `self` will result in the actions being
    /// performed by the primary instance.
    ///
    /// The value of this property cannot be accessed before
    /// [`register()`][Self::register()] has been called. See
    /// [`is_registered()`][Self::is_registered()].
    ///
    /// # Returns
    ///
    /// [`true`] if `self` is remote
    #[doc(alias = "g_application_get_is_remote")]
    #[doc(alias = "get_is_remote")]
    fn is_remote(&self) -> bool;

    /// Gets the resource base path of `self`.
    ///
    /// See [`set_resource_base_path()`][Self::set_resource_base_path()] for more information.
    ///
    /// # Returns
    ///
    /// the base resource path, if one is set
    #[doc(alias = "g_application_get_resource_base_path")]
    #[doc(alias = "get_resource_base_path")]
    fn resource_base_path(&self) -> Option<glib::GString>;

    /// Increases the use count of `self`.
    ///
    /// Use this function to indicate that the application has a reason to
    /// continue to run. For example, [`hold()`][Self::hold()] is called by GTK+
    /// when a toplevel window is on the screen.
    ///
    /// To cancel the hold, call [`release()`][Self::release()].
    #[doc(alias = "g_application_hold")]
    fn hold(&self);

    /// Increases the busy count of `self`.
    ///
    /// Use this function to indicate that the application is busy, for instance
    /// while a long running operation is pending.
    ///
    /// The busy state will be exposed to other processes, so a session shell will
    /// use that information to indicate the state to the user (e.g. with a
    /// spinner).
    ///
    /// To cancel the busy indication, use [`unmark_busy()`][Self::unmark_busy()].
    ///
    /// The application must be registered before calling this function.
    #[doc(alias = "g_application_mark_busy")]
    fn mark_busy(&self);

    /// Opens the given files.
    ///
    /// In essence, this results in the `signal::Application::open` signal being emitted
    /// in the primary instance.
    ///
    /// `n_files` must be greater than zero.
    ///
    /// `hint` is simply passed through to the ::open signal. It is
    /// intended to be used by applications that have multiple modes for
    /// opening files (eg: "view" vs "edit", etc). Unless you have a need
    /// for this functionality, you should use "".
    ///
    /// The application must be registered before calling this function
    /// and it must have the [`ApplicationFlags::HANDLES_OPEN`][crate::ApplicationFlags::HANDLES_OPEN] flag set.
    /// ## `files`
    /// an array of `GFiles` to open
    /// ## `hint`
    /// a hint (or ""), but never [`None`]
    #[doc(alias = "g_application_open")]
    fn open(&self, files: &[File], hint: &str);

    /// Immediately quits the application.
    ///
    /// Upon return to the mainloop, [`ApplicationExtManual::run()`][crate::prelude::ApplicationExtManual::run()] will return,
    /// calling only the 'shutdown' function before doing so.
    ///
    /// The hold count is ignored.
    /// Take care if your code has called [`hold()`][Self::hold()] on the application and
    /// is therefore still expecting it to exist.
    /// (Note that you may have called [`hold()`][Self::hold()] indirectly, for example
    /// through `gtk_application_add_window()`.)
    ///
    /// The result of calling [`ApplicationExtManual::run()`][crate::prelude::ApplicationExtManual::run()] again after it returns is
    /// unspecified.
    #[doc(alias = "g_application_quit")]
    fn quit(&self);

    /// Attempts registration of the application.
    ///
    /// This is the point at which the application discovers if it is the
    /// primary instance or merely acting as a remote for an already-existing
    /// primary instance. This is implemented by attempting to acquire the
    /// application identifier as a unique bus name on the session bus using
    /// GDBus.
    ///
    /// If there is no application ID or if [`ApplicationFlags::NON_UNIQUE`][crate::ApplicationFlags::NON_UNIQUE] was
    /// given, then this process will always become the primary instance.
    ///
    /// Due to the internal architecture of GDBus, method calls can be
    /// dispatched at any time (even if a main loop is not running). For
    /// this reason, you must ensure that any object paths that you wish to
    /// register are registered before calling this function.
    ///
    /// If the application has already been registered then [`true`] is
    /// returned with no work performed.
    ///
    /// The `signal::Application::startup` signal is emitted if registration succeeds
    /// and `self` is the primary instance (including the non-unique
    /// case).
    ///
    /// In the event of an error (such as `cancellable` being cancelled, or a
    /// failure to connect to the session bus), [`false`] is returned and `error`
    /// is set appropriately.
    ///
    /// Note: the return value of this function is not an indicator that this
    /// instance is or is not the primary instance of the application. See
    /// [`is_remote()`][Self::is_remote()] for that.
    /// ## `cancellable`
    /// a [`Cancellable`][crate::Cancellable], or [`None`]
    ///
    /// # Returns
    ///
    /// [`true`] if registration succeeded
    #[doc(alias = "g_application_register")]
    fn register(&self, cancellable: Option<&impl IsA<Cancellable>>) -> Result<(), glib::Error>;

    /// Decrease the use count of `self`.
    ///
    /// When the use count reaches zero, the application will stop running.
    ///
    /// Never call this function except to cancel the effect of a previous
    /// call to [`hold()`][Self::hold()].
    #[doc(alias = "g_application_release")]
    fn release(&self);

    /// Sends a notification on behalf of `self` to the desktop shell.
    /// There is no guarantee that the notification is displayed immediately,
    /// or even at all.
    ///
    /// Notifications may persist after the application exits. It will be
    /// D-Bus-activated when the notification or one of its actions is
    /// activated.
    ///
    /// Modifying `notification` after this call has no effect. However, the
    /// object can be reused for a later call to this function.
    ///
    /// `id` may be any string that uniquely identifies the event for the
    /// application. It does not need to be in any special format. For
    /// example, "new-message" might be appropriate for a notification about
    /// new messages.
    ///
    /// If a previous notification was sent with the same `id`, it will be
    /// replaced with `notification` and shown again as if it was a new
    /// notification. This works even for notifications sent from a previous
    /// execution of the application, as long as `id` is the same string.
    ///
    /// `id` may be [`None`], but it is impossible to replace or withdraw
    /// notifications without an id.
    ///
    /// If `notification` is no longer relevant, it can be withdrawn with
    /// [`withdraw_notification()`][Self::withdraw_notification()].
    /// ## `id`
    /// id of the notification, or [`None`]
    /// ## `notification`
    /// the [`Notification`][crate::Notification] to send
    #[doc(alias = "g_application_send_notification")]
    fn send_notification(&self, id: Option<&str>, notification: &Notification);

    /// Sets the unique identifier for `self`.
    ///
    /// The application id can only be modified if `self` has not yet
    /// been registered.
    ///
    /// If non-[`None`], the application id must be valid. See
    /// [`Application::id_is_valid()`][crate::Application::id_is_valid()].
    /// ## `application_id`
    /// the identifier for `self`
    #[doc(alias = "g_application_set_application_id")]
    fn set_application_id(&self, application_id: Option<&str>);

    /// Sets or unsets the default application for the process, as returned
    /// by [`Application::default()`][crate::Application::default()].
    ///
    /// This function does not take its own reference on `self`. If
    /// `self` is destroyed then the default application will revert
    /// back to [`None`].
    #[doc(alias = "g_application_set_default")]
    fn set_default(&self);

    /// Sets the flags for `self`.
    ///
    /// The flags can only be modified if `self` has not yet been
    /// registered.
    ///
    /// See [`ApplicationFlags`][crate::ApplicationFlags].
    /// ## `flags`
    /// the flags for `self`
    #[doc(alias = "g_application_set_flags")]
    fn set_flags(&self, flags: ApplicationFlags);

    /// Sets the current inactivity timeout for the application.
    ///
    /// This is the amount of time (in milliseconds) after the last call to
    /// [`release()`][Self::release()] before the application stops running.
    ///
    /// This call has no side effects of its own. The value set here is only
    /// used for next time [`release()`][Self::release()] drops the use count to
    /// zero. Any timeouts currently in progress are not impacted.
    /// ## `inactivity_timeout`
    /// the timeout, in milliseconds
    #[doc(alias = "g_application_set_inactivity_timeout")]
    fn set_inactivity_timeout(&self, inactivity_timeout: u32);

    /// Adds a description to the `self` option context.
    ///
    /// See `g_option_context_set_description()` for more information.
    /// ## `description`
    /// a string to be shown in `--help` output
    ///  after the list of options, or [`None`]
    #[cfg(any(feature = "v2_56", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v2_56")))]
    #[doc(alias = "g_application_set_option_context_description")]
    fn set_option_context_description(&self, description: Option<&str>);

    /// Sets the parameter string to be used by the commandline handling of `self`.
    ///
    /// This function registers the argument to be passed to `g_option_context_new()`
    /// when the internal `GOptionContext` of `self` is created.
    ///
    /// See `g_option_context_new()` for more information about `parameter_string`.
    /// ## `parameter_string`
    /// a string which is displayed
    ///  in the first line of `--help` output, after the usage summary `programname [OPTION...]`.
    #[cfg(any(feature = "v2_56", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v2_56")))]
    #[doc(alias = "g_application_set_option_context_parameter_string")]
    fn set_option_context_parameter_string(&self, parameter_string: Option<&str>);

    /// Adds a summary to the `self` option context.
    ///
    /// See `g_option_context_set_summary()` for more information.
    /// ## `summary`
    /// a string to be shown in `--help` output
    ///  before the list of options, or [`None`]
    #[cfg(any(feature = "v2_56", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v2_56")))]
    #[doc(alias = "g_application_set_option_context_summary")]
    fn set_option_context_summary(&self, summary: Option<&str>);

    /// Sets (or unsets) the base resource path of `self`.
    ///
    /// The path is used to automatically load various [application
    /// resources][gresource] such as menu layouts and action descriptions.
    /// The various types of resources will be found at fixed names relative
    /// to the given base path.
    ///
    /// By default, the resource base path is determined from the application
    /// ID by prefixing '/' and replacing each '.' with '/'. This is done at
    /// the time that the [`Application`][crate::Application] object is constructed. Changes to
    /// the application ID after that point will not have an impact on the
    /// resource base path.
    ///
    /// As an example, if the application has an ID of "org.example.app" then
    /// the default resource base path will be "/org/example/app". If this
    /// is a `GtkApplication` (and you have not manually changed the path)
    /// then Gtk will then search for the menus of the application at
    /// "/org/example/app/gtk/menus.ui".
    ///
    /// See [`Resource`][crate::Resource] for more information about adding resources to your
    /// application.
    ///
    /// You can disable automatic resource loading functionality by setting
    /// the path to [`None`].
    ///
    /// Changing the resource base path once the application is running is
    /// not recommended. The point at which the resource path is consulted
    /// for forming paths for various purposes is unspecified. When writing
    /// a sub-class of [`Application`][crate::Application] you should either set the
    /// `property::Application::resource-base-path` property at construction time, or call
    /// this function during the instance initialization. Alternatively, you
    /// can call this function in the `GApplicationClass.startup` virtual function,
    /// before chaining up to the parent implementation.
    /// ## `resource_path`
    /// the resource path to use
    #[doc(alias = "g_application_set_resource_base_path")]
    fn set_resource_base_path(&self, resource_path: Option<&str>);

    /// Destroys a binding between `property` and the busy state of
    /// `self` that was previously created with
    /// [`bind_busy_property()`][Self::bind_busy_property()].
    /// ## `object`
    /// a [`glib::Object`][crate::glib::Object]
    /// ## `property`
    /// the name of a boolean property of `object`
    #[doc(alias = "g_application_unbind_busy_property")]
    fn unbind_busy_property(&self, object: &impl IsA<glib::Object>, property: &str);

    /// Decreases the busy count of `self`.
    ///
    /// When the busy count reaches zero, the new state will be propagated
    /// to other processes.
    ///
    /// This function must only be called to cancel the effect of a previous
    /// call to [`mark_busy()`][Self::mark_busy()].
    #[doc(alias = "g_application_unmark_busy")]
    fn unmark_busy(&self);

    /// Withdraws a notification that was sent with
    /// [`send_notification()`][Self::send_notification()].
    ///
    /// This call does nothing if a notification with `id` doesn't exist or
    /// the notification was never sent.
    ///
    /// This function works even for notifications sent in previous
    /// executions of this application, as long `id` is the same as it was for
    /// the sent notification.
    ///
    /// Note that notifications are dismissed when the user clicks on one
    /// of the buttons in a notification or triggers its default action, so
    /// there is no need to explicitly withdraw the notification in that case.
    /// ## `id`
    /// id of a previously sent notification
    #[doc(alias = "g_application_withdraw_notification")]
    fn withdraw_notification(&self, id: &str);

    #[doc(alias = "action-group")]
    fn set_action_group<P: IsA<ActionGroup>>(&self, action_group: Option<&P>);

    /// The ::activate signal is emitted on the primary instance when an
    /// activation occurs. See [`activate()`][Self::activate()].
    #[doc(alias = "activate")]
    fn connect_activate<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    /// The ::command-line signal is emitted on the primary instance when
    /// a commandline is not handled locally. See [`ApplicationExtManual::run()`][crate::prelude::ApplicationExtManual::run()] and
    /// the [`ApplicationCommandLine`][crate::ApplicationCommandLine] documentation for more information.
    /// ## `command_line`
    /// a [`ApplicationCommandLine`][crate::ApplicationCommandLine] representing the
    ///  passed commandline
    ///
    /// # Returns
    ///
    /// An integer that is set as the exit status for the calling
    ///  process. See [`ApplicationCommandLineExt::set_exit_status()`][crate::prelude::ApplicationCommandLineExt::set_exit_status()].
    #[doc(alias = "command-line")]
    fn connect_command_line<F: Fn(&Self, &ApplicationCommandLine) -> i32 + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    /// The ::handle-local-options signal is emitted on the local instance
    /// after the parsing of the commandline options has occurred.
    ///
    /// You can add options to be recognised during commandline option
    /// parsing using `g_application_add_main_option_entries()` and
    /// `g_application_add_option_group()`.
    ///
    /// Signal handlers can inspect `options` (along with values pointed to
    /// from the `arg_data` of an installed `GOptionEntrys`) in order to
    /// decide to perform certain actions, including direct local handling
    /// (which may be useful for options like --version).
    ///
    /// In the event that the application is marked
    /// [`ApplicationFlags::HANDLES_COMMAND_LINE`][crate::ApplicationFlags::HANDLES_COMMAND_LINE] the "normal processing" will
    /// send the `options` dictionary to the primary instance where it can be
    /// read with [`ApplicationCommandLineExt::options_dict()`][crate::prelude::ApplicationCommandLineExt::options_dict()]. The signal
    /// handler can modify the dictionary before returning, and the
    /// modified dictionary will be sent.
    ///
    /// In the event that [`ApplicationFlags::HANDLES_COMMAND_LINE`][crate::ApplicationFlags::HANDLES_COMMAND_LINE] is not set,
    /// "normal processing" will treat the remaining uncollected command
    /// line arguments as filenames or URIs. If there are no arguments,
    /// the application is activated by [`activate()`][Self::activate()]. One or
    /// more arguments results in a call to [`open()`][Self::open()].
    ///
    /// If you want to handle the local commandline arguments for yourself
    /// by converting them to calls to [`open()`][Self::open()] or
    /// [`ActionGroupExt::activate_action()`][crate::prelude::ActionGroupExt::activate_action()] then you must be sure to register
    /// the application first. You should probably not call
    /// [`activate()`][Self::activate()] for yourself, however: just return -1 and
    /// allow the default handler to do it for you. This will ensure that
    /// the `--gapplication-service` switch works properly (i.e. no activation
    /// in that case).
    ///
    /// Note that this signal is emitted from the default implementation of
    /// `local_command_line()`. If you override that function and don't
    /// chain up then this signal will never be emitted.
    ///
    /// You can override `local_command_line()` if you need more powerful
    /// capabilities than what is provided here, but this should not
    /// normally be required.
    /// ## `options`
    /// the options dictionary
    ///
    /// # Returns
    ///
    /// an exit code. If you have handled your options and want
    /// to exit the process, return a non-negative option, 0 for success,
    /// and a positive value for failure. To continue, return -1 to let
    /// the default option processing continue.
    #[doc(alias = "handle-local-options")]
    fn connect_handle_local_options<F: Fn(&Self, &glib::VariantDict) -> i32 + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId;

    /// The ::name-lost signal is emitted only on the registered primary instance
    /// when a new instance has taken over. This can only happen if the application
    /// is using the [`ApplicationFlags::ALLOW_REPLACEMENT`][crate::ApplicationFlags::ALLOW_REPLACEMENT] flag.
    ///
    /// The default handler for this signal calls [`quit()`][Self::quit()].
    ///
    /// # Returns
    ///
    /// [`true`] if the signal has been handled
    #[cfg(any(feature = "v2_60", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v2_60")))]
    #[doc(alias = "name-lost")]
    fn connect_name_lost<F: Fn(&Self) -> bool + 'static>(&self, f: F) -> SignalHandlerId;

    /// The ::shutdown signal is emitted only on the registered primary instance
    /// immediately after the main loop terminates.
    #[doc(alias = "shutdown")]
    fn connect_shutdown<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    /// The ::startup signal is emitted on the primary instance immediately
    /// after registration. See [`register()`][Self::register()].
    #[doc(alias = "startup")]
    fn connect_startup<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "action-group")]
    fn connect_action_group_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "application-id")]
    fn connect_application_id_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "flags")]
    fn connect_flags_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "inactivity-timeout")]
    fn connect_inactivity_timeout_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "is-busy")]
    fn connect_is_busy_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "is-registered")]
    fn connect_is_registered_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "is-remote")]
    fn connect_is_remote_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;

    #[doc(alias = "resource-base-path")]
    fn connect_resource_base_path_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId;
}

impl<O: IsA<Application>> ApplicationExt for O {
    fn activate(&self) {
        unsafe {
            ffi::g_application_activate(self.as_ref().to_glib_none().0);
        }
    }

    fn add_main_option(
        &self,
        long_name: &str,
        short_name: glib::Char,
        flags: glib::OptionFlags,
        arg: glib::OptionArg,
        description: &str,
        arg_description: Option<&str>,
    ) {
        unsafe {
            ffi::g_application_add_main_option(
                self.as_ref().to_glib_none().0,
                long_name.to_glib_none().0,
                short_name.into_glib(),
                flags.into_glib(),
                arg.into_glib(),
                description.to_glib_none().0,
                arg_description.to_glib_none().0,
            );
        }
    }

    //fn add_main_option_entries(&self, entries: /*Ignored*/&[glib::OptionEntry]) {
    //    unsafe { TODO: call ffi:g_application_add_main_option_entries() }
    //}

    //fn add_option_group(&self, group: /*Ignored*/&glib::OptionGroup) {
    //    unsafe { TODO: call ffi:g_application_add_option_group() }
    //}

    fn bind_busy_property(&self, object: &impl IsA<glib::Object>, property: &str) {
        unsafe {
            ffi::g_application_bind_busy_property(
                self.as_ref().to_glib_none().0,
                object.as_ref().to_glib_none().0,
                property.to_glib_none().0,
            );
        }
    }

    fn application_id(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::g_application_get_application_id(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn dbus_connection(&self) -> Option<DBusConnection> {
        unsafe {
            from_glib_none(ffi::g_application_get_dbus_connection(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn dbus_object_path(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::g_application_get_dbus_object_path(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn flags(&self) -> ApplicationFlags {
        unsafe { from_glib(ffi::g_application_get_flags(self.as_ref().to_glib_none().0)) }
    }

    fn inactivity_timeout(&self) -> u32 {
        unsafe { ffi::g_application_get_inactivity_timeout(self.as_ref().to_glib_none().0) }
    }

    fn is_busy(&self) -> bool {
        unsafe {
            from_glib(ffi::g_application_get_is_busy(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn is_registered(&self) -> bool {
        unsafe {
            from_glib(ffi::g_application_get_is_registered(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn is_remote(&self) -> bool {
        unsafe {
            from_glib(ffi::g_application_get_is_remote(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn resource_base_path(&self) -> Option<glib::GString> {
        unsafe {
            from_glib_none(ffi::g_application_get_resource_base_path(
                self.as_ref().to_glib_none().0,
            ))
        }
    }

    fn hold(&self) {
        unsafe {
            ffi::g_application_hold(self.as_ref().to_glib_none().0);
        }
    }

    fn mark_busy(&self) {
        unsafe {
            ffi::g_application_mark_busy(self.as_ref().to_glib_none().0);
        }
    }

    fn open(&self, files: &[File], hint: &str) {
        let n_files = files.len() as i32;
        unsafe {
            ffi::g_application_open(
                self.as_ref().to_glib_none().0,
                files.to_glib_none().0,
                n_files,
                hint.to_glib_none().0,
            );
        }
    }

    fn quit(&self) {
        unsafe {
            ffi::g_application_quit(self.as_ref().to_glib_none().0);
        }
    }

    fn register(&self, cancellable: Option<&impl IsA<Cancellable>>) -> Result<(), glib::Error> {
        unsafe {
            let mut error = ptr::null_mut();
            let is_ok = ffi::g_application_register(
                self.as_ref().to_glib_none().0,
                cancellable.map(|p| p.as_ref()).to_glib_none().0,
                &mut error,
            );
            assert_eq!(is_ok == glib::ffi::GFALSE, !error.is_null());
            if error.is_null() {
                Ok(())
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    fn release(&self) {
        unsafe {
            ffi::g_application_release(self.as_ref().to_glib_none().0);
        }
    }

    fn send_notification(&self, id: Option<&str>, notification: &Notification) {
        unsafe {
            ffi::g_application_send_notification(
                self.as_ref().to_glib_none().0,
                id.to_glib_none().0,
                notification.to_glib_none().0,
            );
        }
    }

    fn set_application_id(&self, application_id: Option<&str>) {
        unsafe {
            ffi::g_application_set_application_id(
                self.as_ref().to_glib_none().0,
                application_id.to_glib_none().0,
            );
        }
    }

    fn set_default(&self) {
        unsafe {
            ffi::g_application_set_default(self.as_ref().to_glib_none().0);
        }
    }

    fn set_flags(&self, flags: ApplicationFlags) {
        unsafe {
            ffi::g_application_set_flags(self.as_ref().to_glib_none().0, flags.into_glib());
        }
    }

    fn set_inactivity_timeout(&self, inactivity_timeout: u32) {
        unsafe {
            ffi::g_application_set_inactivity_timeout(
                self.as_ref().to_glib_none().0,
                inactivity_timeout,
            );
        }
    }

    #[cfg(any(feature = "v2_56", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v2_56")))]
    fn set_option_context_description(&self, description: Option<&str>) {
        unsafe {
            ffi::g_application_set_option_context_description(
                self.as_ref().to_glib_none().0,
                description.to_glib_none().0,
            );
        }
    }

    #[cfg(any(feature = "v2_56", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v2_56")))]
    fn set_option_context_parameter_string(&self, parameter_string: Option<&str>) {
        unsafe {
            ffi::g_application_set_option_context_parameter_string(
                self.as_ref().to_glib_none().0,
                parameter_string.to_glib_none().0,
            );
        }
    }

    #[cfg(any(feature = "v2_56", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v2_56")))]
    fn set_option_context_summary(&self, summary: Option<&str>) {
        unsafe {
            ffi::g_application_set_option_context_summary(
                self.as_ref().to_glib_none().0,
                summary.to_glib_none().0,
            );
        }
    }

    fn set_resource_base_path(&self, resource_path: Option<&str>) {
        unsafe {
            ffi::g_application_set_resource_base_path(
                self.as_ref().to_glib_none().0,
                resource_path.to_glib_none().0,
            );
        }
    }

    fn unbind_busy_property(&self, object: &impl IsA<glib::Object>, property: &str) {
        unsafe {
            ffi::g_application_unbind_busy_property(
                self.as_ref().to_glib_none().0,
                object.as_ref().to_glib_none().0,
                property.to_glib_none().0,
            );
        }
    }

    fn unmark_busy(&self) {
        unsafe {
            ffi::g_application_unmark_busy(self.as_ref().to_glib_none().0);
        }
    }

    fn withdraw_notification(&self, id: &str) {
        unsafe {
            ffi::g_application_withdraw_notification(
                self.as_ref().to_glib_none().0,
                id.to_glib_none().0,
            );
        }
    }

    fn set_action_group<P: IsA<ActionGroup>>(&self, action_group: Option<&P>) {
        glib::ObjectExt::set_property(self.as_ref(), "action-group", &action_group)
    }

    fn connect_activate<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn activate_trampoline<P: IsA<Application>, F: Fn(&P) + 'static>(
            this: *mut ffi::GApplication,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Application::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"activate\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    activate_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_command_line<F: Fn(&Self, &ApplicationCommandLine) -> i32 + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn command_line_trampoline<
            P: IsA<Application>,
            F: Fn(&P, &ApplicationCommandLine) -> i32 + 'static,
        >(
            this: *mut ffi::GApplication,
            command_line: *mut ffi::GApplicationCommandLine,
            f: glib::ffi::gpointer,
        ) -> libc::c_int {
            let f: &F = &*(f as *const F);
            f(
                Application::from_glib_borrow(this).unsafe_cast_ref(),
                &from_glib_borrow(command_line),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"command-line\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    command_line_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_handle_local_options<F: Fn(&Self, &glib::VariantDict) -> i32 + 'static>(
        &self,
        f: F,
    ) -> SignalHandlerId {
        unsafe extern "C" fn handle_local_options_trampoline<
            P: IsA<Application>,
            F: Fn(&P, &glib::VariantDict) -> i32 + 'static,
        >(
            this: *mut ffi::GApplication,
            options: *mut glib::ffi::GVariantDict,
            f: glib::ffi::gpointer,
        ) -> libc::c_int {
            let f: &F = &*(f as *const F);
            f(
                Application::from_glib_borrow(this).unsafe_cast_ref(),
                &from_glib_borrow(options),
            )
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"handle-local-options\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    handle_local_options_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    #[cfg(any(feature = "v2_60", feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(feature = "v2_60")))]
    fn connect_name_lost<F: Fn(&Self) -> bool + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn name_lost_trampoline<
            P: IsA<Application>,
            F: Fn(&P) -> bool + 'static,
        >(
            this: *mut ffi::GApplication,
            f: glib::ffi::gpointer,
        ) -> glib::ffi::gboolean {
            let f: &F = &*(f as *const F);
            f(Application::from_glib_borrow(this).unsafe_cast_ref()).into_glib()
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"name-lost\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    name_lost_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_shutdown<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn shutdown_trampoline<P: IsA<Application>, F: Fn(&P) + 'static>(
            this: *mut ffi::GApplication,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Application::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"shutdown\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    shutdown_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_startup<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn startup_trampoline<P: IsA<Application>, F: Fn(&P) + 'static>(
            this: *mut ffi::GApplication,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Application::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"startup\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    startup_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_action_group_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_action_group_trampoline<
            P: IsA<Application>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GApplication,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Application::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::action-group\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_action_group_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_application_id_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_application_id_trampoline<
            P: IsA<Application>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GApplication,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Application::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::application-id\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_application_id_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_flags_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_flags_trampoline<P: IsA<Application>, F: Fn(&P) + 'static>(
            this: *mut ffi::GApplication,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Application::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::flags\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_flags_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_inactivity_timeout_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_inactivity_timeout_trampoline<
            P: IsA<Application>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GApplication,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Application::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::inactivity-timeout\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_inactivity_timeout_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_is_busy_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_is_busy_trampoline<P: IsA<Application>, F: Fn(&P) + 'static>(
            this: *mut ffi::GApplication,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Application::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::is-busy\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_is_busy_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_is_registered_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_is_registered_trampoline<
            P: IsA<Application>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GApplication,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Application::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::is-registered\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_is_registered_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_is_remote_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_is_remote_trampoline<
            P: IsA<Application>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GApplication,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Application::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::is-remote\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_is_remote_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }

    fn connect_resource_base_path_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
        unsafe extern "C" fn notify_resource_base_path_trampoline<
            P: IsA<Application>,
            F: Fn(&P) + 'static,
        >(
            this: *mut ffi::GApplication,
            _param_spec: glib::ffi::gpointer,
            f: glib::ffi::gpointer,
        ) {
            let f: &F = &*(f as *const F);
            f(Application::from_glib_borrow(this).unsafe_cast_ref())
        }
        unsafe {
            let f: Box_<F> = Box_::new(f);
            connect_raw(
                self.as_ptr() as *mut _,
                b"notify::resource-base-path\0".as_ptr() as *const _,
                Some(transmute::<_, unsafe extern "C" fn()>(
                    notify_resource_base_path_trampoline::<Self, F> as *const (),
                )),
                Box_::into_raw(f),
            )
        }
    }
}

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