gtk4/auto/event_controller_focus.rs
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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::{ffi, EventController, PropagationLimit, PropagationPhase};
use glib::{
prelude::*,
signal::{connect_raw, SignalHandlerId},
translate::*,
};
use std::boxed::Box as Box_;
glib::wrapper! {
/// [`EventControllerFocus`][crate::EventControllerFocus] is an event controller to keep track of
/// keyboard focus.
///
/// The event controller offers [`enter`][struct@crate::EventControllerFocus#enter]
/// and [`leave`][struct@crate::EventControllerFocus#leave] signals, as well as
/// [`is-focus`][struct@crate::EventControllerFocus#is-focus] and
/// [`contains-focus`][struct@crate::EventControllerFocus#contains-focus] properties
/// which are updated to reflect focus changes inside the widget hierarchy
/// that is rooted at the controllers widget.
///
/// ## Properties
///
///
/// #### `contains-focus`
/// [`true`] if focus is contained in the controllers widget.
///
/// See [`is-focus`][struct@crate::EventControllerFocus#is-focus] for whether
/// the focus is in the widget itself or inside a descendent.
///
/// When handling focus events, this property is updated
/// before [`enter`][struct@crate::EventControllerFocus#enter] or
/// [`leave`][struct@crate::EventControllerFocus#leave] are emitted.
///
/// Readable
///
///
/// #### `is-focus`
/// [`true`] if focus is in the controllers widget itself,
/// as opposed to in a descendent widget.
///
/// See also [`contains-focus`][struct@crate::EventControllerFocus#contains-focus].
///
/// When handling focus events, this property is updated
/// before [`enter`][struct@crate::EventControllerFocus#enter] or
/// [`leave`][struct@crate::EventControllerFocus#leave] are emitted.
///
/// Readable
/// <details><summary><h4>EventController</h4></summary>
///
///
/// #### `name`
/// The name for this controller, typically used for debugging purposes.
///
/// Readable | Writeable
///
///
/// #### `propagation-limit`
/// The limit for which events this controller will handle.
///
/// Readable | Writeable
///
///
/// #### `propagation-phase`
/// The propagation phase at which this controller will handle events.
///
/// Readable | Writeable
///
///
/// #### `widget`
/// The widget receiving the `GdkEvents` that the controller will handle.
///
/// Readable
/// </details>
///
/// ## Signals
///
///
/// #### `enter`
/// Emitted whenever the focus enters into the widget or one
/// of its descendents.
///
/// Note that this means you may not get an ::enter signal
/// even though the widget becomes the focus location, in
/// certain cases (such as when the focus moves from a descendent
/// of the widget to the widget itself). If you are interested
/// in these cases, you can monitor the
/// [`is-focus`][struct@crate::EventControllerFocus#is-focus]
/// property for changes.
///
///
///
///
/// #### `leave`
/// Emitted whenever the focus leaves the widget hierarchy
/// that is rooted at the widget that the controller is attached to.
///
/// Note that this means you may not get a ::leave signal
/// even though the focus moves away from the widget, in
/// certain cases (such as when the focus moves from the widget
/// to a descendent). If you are interested in these cases, you
/// can monitor the [`is-focus`][struct@crate::EventControllerFocus#is-focus]
/// property for changes.
///
///
///
/// # Implements
///
/// [`EventControllerExt`][trait@crate::prelude::EventControllerExt], [`trait@glib::ObjectExt`]
#[doc(alias = "GtkEventControllerFocus")]
pub struct EventControllerFocus(Object<ffi::GtkEventControllerFocus, ffi::GtkEventControllerFocusClass>) @extends EventController;
match fn {
type_ => || ffi::gtk_event_controller_focus_get_type(),
}
}
impl EventControllerFocus {
/// Creates a new event controller that will handle focus events.
///
/// # Returns
///
/// a new [`EventControllerFocus`][crate::EventControllerFocus]
#[doc(alias = "gtk_event_controller_focus_new")]
pub fn new() -> EventControllerFocus {
assert_initialized_main_thread!();
unsafe {
EventController::from_glib_full(ffi::gtk_event_controller_focus_new()).unsafe_cast()
}
}
// rustdoc-stripper-ignore-next
/// Creates a new builder-pattern struct instance to construct [`EventControllerFocus`] objects.
///
/// This method returns an instance of [`EventControllerFocusBuilder`](crate::builders::EventControllerFocusBuilder) which can be used to create [`EventControllerFocus`] objects.
pub fn builder() -> EventControllerFocusBuilder {
EventControllerFocusBuilder::new()
}
/// Returns [`true`] if focus is within @self or one of its children.
///
/// # Returns
///
/// [`true`] if focus is within @self or one of its children
#[doc(alias = "gtk_event_controller_focus_contains_focus")]
#[doc(alias = "contains-focus")]
pub fn contains_focus(&self) -> bool {
unsafe {
from_glib(ffi::gtk_event_controller_focus_contains_focus(
self.to_glib_none().0,
))
}
}
/// Returns [`true`] if focus is within @self, but not one of its children.
///
/// # Returns
///
/// [`true`] if focus is within @self, but not one of its children
#[doc(alias = "gtk_event_controller_focus_is_focus")]
#[doc(alias = "is-focus")]
pub fn is_focus(&self) -> bool {
unsafe {
from_glib(ffi::gtk_event_controller_focus_is_focus(
self.to_glib_none().0,
))
}
}
/// Emitted whenever the focus enters into the widget or one
/// of its descendents.
///
/// Note that this means you may not get an ::enter signal
/// even though the widget becomes the focus location, in
/// certain cases (such as when the focus moves from a descendent
/// of the widget to the widget itself). If you are interested
/// in these cases, you can monitor the
/// [`is-focus`][struct@crate::EventControllerFocus#is-focus]
/// property for changes.
#[doc(alias = "enter")]
pub fn connect_enter<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
unsafe extern "C" fn enter_trampoline<F: Fn(&EventControllerFocus) + 'static>(
this: *mut ffi::GtkEventControllerFocus,
f: glib::ffi::gpointer,
) {
let f: &F = &*(f as *const F);
f(&from_glib_borrow(this))
}
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
c"enter".as_ptr() as *const _,
Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
enter_trampoline::<F> as *const (),
)),
Box_::into_raw(f),
)
}
}
/// Emitted whenever the focus leaves the widget hierarchy
/// that is rooted at the widget that the controller is attached to.
///
/// Note that this means you may not get a ::leave signal
/// even though the focus moves away from the widget, in
/// certain cases (such as when the focus moves from the widget
/// to a descendent). If you are interested in these cases, you
/// can monitor the [`is-focus`][struct@crate::EventControllerFocus#is-focus]
/// property for changes.
#[doc(alias = "leave")]
pub fn connect_leave<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
unsafe extern "C" fn leave_trampoline<F: Fn(&EventControllerFocus) + 'static>(
this: *mut ffi::GtkEventControllerFocus,
f: glib::ffi::gpointer,
) {
let f: &F = &*(f as *const F);
f(&from_glib_borrow(this))
}
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
c"leave".as_ptr() as *const _,
Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
leave_trampoline::<F> as *const (),
)),
Box_::into_raw(f),
)
}
}
#[doc(alias = "contains-focus")]
pub fn connect_contains_focus_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
unsafe extern "C" fn notify_contains_focus_trampoline<
F: Fn(&EventControllerFocus) + 'static,
>(
this: *mut ffi::GtkEventControllerFocus,
_param_spec: glib::ffi::gpointer,
f: glib::ffi::gpointer,
) {
let f: &F = &*(f as *const F);
f(&from_glib_borrow(this))
}
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
c"notify::contains-focus".as_ptr() as *const _,
Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
notify_contains_focus_trampoline::<F> as *const (),
)),
Box_::into_raw(f),
)
}
}
#[doc(alias = "is-focus")]
pub fn connect_is_focus_notify<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
unsafe extern "C" fn notify_is_focus_trampoline<F: Fn(&EventControllerFocus) + 'static>(
this: *mut ffi::GtkEventControllerFocus,
_param_spec: glib::ffi::gpointer,
f: glib::ffi::gpointer,
) {
let f: &F = &*(f as *const F);
f(&from_glib_borrow(this))
}
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
c"notify::is-focus".as_ptr() as *const _,
Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
notify_is_focus_trampoline::<F> as *const (),
)),
Box_::into_raw(f),
)
}
}
}
impl Default for EventControllerFocus {
fn default() -> Self {
Self::new()
}
}
// rustdoc-stripper-ignore-next
/// A [builder-pattern] type to construct [`EventControllerFocus`] 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 EventControllerFocusBuilder {
builder: glib::object::ObjectBuilder<'static, EventControllerFocus>,
}
impl EventControllerFocusBuilder {
fn new() -> Self {
Self {
builder: glib::object::Object::builder(),
}
}
/// The name for this controller, typically used for debugging purposes.
pub fn name(self, name: impl Into<glib::GString>) -> Self {
Self {
builder: self.builder.property("name", name.into()),
}
}
/// The limit for which events this controller will handle.
pub fn propagation_limit(self, propagation_limit: PropagationLimit) -> Self {
Self {
builder: self
.builder
.property("propagation-limit", propagation_limit),
}
}
/// The propagation phase at which this controller will handle events.
pub fn propagation_phase(self, propagation_phase: PropagationPhase) -> Self {
Self {
builder: self
.builder
.property("propagation-phase", propagation_phase),
}
}
// rustdoc-stripper-ignore-next
/// Build the [`EventControllerFocus`].
#[must_use = "Building the object from the builder is usually expensive and is not expected to have side effects"]
pub fn build(self) -> EventControllerFocus {
assert_initialized_main_thread!();
self.builder.build()
}
}