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#![allow(unused_macros)]
use glib::translate::*;
use libc::c_void;
use std::{fmt, mem, ptr};
// use AxisUse;
use crate::{EventSequence, EventType, InputDevice, ModifierType};
glib_wrapper! {
/// A generic Clutter event.
#[derive(PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct Event(Boxed<ffi::ClutterEvent>);
match fn {
copy => |ptr| ffi::clutter_event_copy(ptr),
free => |ptr| ffi::clutter_event_free(ptr),
get_type => || ffi::clutter_event_get_type(),
}
}
event_wrapper!(Event, ClutterAnyEvent);
impl Event {
/// Creates a new event.
pub fn new(type_: EventType) -> Event {
assert_initialized_main_thread!();
unsafe { from_glib_none(ffi::clutter_event_new(type_.to_glib())) }
}
pub fn get() -> Option<Event> {
assert_initialized_main_thread!();
unsafe { from_glib_none(ffi::clutter_event_get()) }
}
pub fn put(&self) {
unsafe { ffi::clutter_event_put(self.to_glib_none().0) }
}
// /// Set the event handler.
// ///
// /// The callback `handler` is called for each event. If `None`, event
// /// handling is disabled.
// pub fn set_handler<F: Fn(&mut Event) + 'static>(handler: Option<F>) {
// assert_initialized_main_thread!();
// unsafe extern "C" fn event_handler_trampoline<F: Fn(&mut Event) + 'static>(
// event: *mut ffi::ClutterEvent,
// ptr: glib_sys::gpointer,
// ) {
// if ptr != ptr::null_mut() {
// let f: &F = &*(ptr as *mut _);
// let mut event = from_glib_none(event);
// f(&mut event)
// }
// }
// unsafe extern "C" fn event_handler_destroy<F: Fn(&mut Event) + 'static>(
// ptr: glib_sys::gpointer,
// ) {
// if ptr != ptr::null_mut() {
// // convert back to Box and free
// let _boxed: Box<F> = Box::from_raw(ptr as *mut _);
// }
// }
// if let Some(handler) = handler {
// // allocate and convert to target type
// // double box to reduce a fat pointer to a simple pointer
// let boxed: Box<F> = Box::new(handler);
// let ptr: *mut c_void = Box::into_raw(boxed) as *mut _;
// unsafe {
// ffi::clutter_event_handler_set(
// Some(event_handler_trampoline::<F>),
// ptr,
// Some(event_handler_destroy::<F>),
// )
// }
// } else {
// unsafe { ffi::gdk_event_handler_set(None, ptr::null_mut(), None) }
// }
// }
// pub fn get_axis(&self, axis_use: AxisUse) -> Option<f64> {
// let mut value = 0f64;
// if unsafe {
// from_glib(ffi::gdk_event_get_axis(
// self.to_glib_none().0,
// axis_use.to_glib(),
// &mut value,
// ))
// } {
// Some(value)
// } else {
// None
// }
// }
// pub fn get_button(&self) -> Option<u32> {
// let mut button = 0u32;
// if unsafe {
// from_glib(ffi::clutter_event_get_button(
// self.to_glib_none().0,
// &mut button,
// ))
// } {
// Some(button)
// } else {
// None
// }
// }
// pub fn get_click_count(&self) -> Option<u32> {
// let mut click_count = 0u32;
// if unsafe {
// from_glib(ffi::clutter_event_get_click_count(
// self.to_glib_none().0,
// &mut click_count,
// ))
// } {
// Some(click_count)
// } else {
// None
// }
// }
// pub fn get_coords(&self) -> Option<(f32, f32)> {
// let mut x_win = 0_f32;
// let mut y_win = 0_f32;
// if unsafe {
// from_glib(ffi::clutter_event_get_coords(
// self.to_glib_none().0,
// &mut x_win,
// &mut y_win,
// ))
// } {
// Some((x_win, y_win))
// } else {
// None
// }
// }
// pub fn get_keycode(&self) -> Option<u16> {
// let mut keycode = 0u16;
// if unsafe {
// from_glib(ffi::clutter_event_get_keycode(
// self.to_glib_none().0,
// &mut keycode,
// ))
// } {
// Some(keycode)
// } else {
// None
// }
// }
// pub fn get_keyval(&self) -> Option<u32> {
// let mut keyval = 0u32;
// if unsafe {
// from_glib(ffi::clutter_event_get_keyval(
// self.to_glib_none().0,
// &mut keyval,
// ))
// } {
// Some(keyval)
// } else {
// None
// }
// }
// pub fn get_root_coords(&self) -> Option<(f32, f32)> {
// let mut x_root = 0_f32;
// let mut y_root = 0_f32;
// if unsafe {
// from_glib(ffi::clutter_event_get_coords(
// self.to_glib_none().0,
// &mut x_root,
// &mut y_root,
// ))
// } {
// Some((x_root, y_root))
// } else {
// None
// }
// }
// pub fn get_scroll_direction(&self) -> Option<ScrollDirection> {
// unsafe {
// let mut direction = mem::MaybeUninit::uninit();
// if from_glib(ffi::clutter_event_get_scroll_direction(
// self.to_glib_none().0,
// direction.as_mut_ptr(),
// )) {
// Some(from_glib(direction.assume_init()))
// } else {
// None
// }
// }
// }
// pub fn get_scroll_deltas(&self) -> Option<(f64, f64)> {
// let mut delta_x = 0_f64;
// let mut delta_y = 0_f64;
// if unsafe {
// from_glib(ffi::clutter_event_get_scroll_delta(
// self.to_glib_none().0,
// &mut delta_x,
// &mut delta_y,
// ))
// } {
// Some((delta_x, delta_y))
// } else {
// None
// }
// }
// pub fn is_scroll_stop_event(&self) -> bool {
// unsafe {
// from_glib(ffi::gdk_event_is_scroll_stop_event(
// self.to_glib_none().0,
// ))
// }
// }
// pub fn get_state(&self) -> Option<ModifierType> {
// unsafe {
// let mut state = mem::MaybeUninit::uninit();
// if from_glib(ffi::clutter_event_get_scroll_direction(
// self.to_glib_none().0,
// state.as_mut_ptr(),
// )) {
// Some(from_glib(state.assume_init() as u32))
// } else {
// None
// }
// }
// }
pub fn get_time(&self) -> u32 {
unsafe { ffi::clutter_event_get_time(self.to_glib_none().0) }
}
/// Returns the associated `Window` if applicable.
// pub fn get_window(&self) -> Option<Window> {
// unsafe { from_glib_none(ffi::clutter_event_get_window(self.to_glib_none().0)) }
// }
pub fn get_event_sequence(&self) -> Option<EventSequence> {
unsafe { from_glib_none(ffi::clutter_event_get_event_sequence(self.to_glib_none().0)) }
}
// pub fn triggers_context_menu(&self) -> bool {
// unsafe {
// from_glib(ffi::clutter_event_triggers_context_menu(
// self.to_glib_none().0,
// ))
// }
// }
// pub fn get_seat(&self) -> Option<Seat> {
// unsafe { from_glib_none(ffi::clutter_event_get_seat(self.to_glib_none().0)) }
// }
// pub fn get_scancode(&mut self) -> i32 {
// unsafe { ffi::clutter_event_get_scancode(self.to_glib_none_mut().0) }
// }
// pub fn get_pointer_emulated(&mut self) -> bool {
// unsafe {
// from_glib(ffi::clutter_event_is_pointer_emulated(
// self.to_glib_none_mut().0,
// ))
// }
// }
// pub fn set_screen(&mut self, screen: Option<&Screen>) {
// unsafe {
// ffi::gdk_event_set_screen(self.to_glib_none_mut().0, screen.to_glib_none().0)
// }
// }
// pub fn get_screen(&self) -> Option<Screen> {
// unsafe { from_glib_none(ffi::clutter_event_get_screen(self.to_glib_none().0)) }
// }
pub fn set_device(&mut self, device: Option<&InputDevice>) {
unsafe { ffi::clutter_event_set_device(self.to_glib_none_mut().0, device.to_glib_none().0) }
}
pub fn get_device(&self) -> Option<InputDevice> {
unsafe { from_glib_none(ffi::clutter_event_get_device(self.to_glib_none().0)) }
}
pub fn set_source_device(&mut self, device: Option<&InputDevice>) {
unsafe {
ffi::clutter_event_set_source_device(self.to_glib_none_mut().0, device.to_glib_none().0)
}
}
pub fn get_source_device(&self) -> Option<InputDevice> {
unsafe { from_glib_none(ffi::clutter_event_get_source_device(self.to_glib_none().0)) }
}
// pub fn set_device_tool(&mut self, device: Option<&DeviceTool>) {
// unsafe {
// ffi::clutter_event_set_device_tool(self.to_glib_none_mut().0, device.to_glib_none().0)
// }
// }
// pub fn get_device_tool(&self) -> Option<DeviceTool> {
// unsafe {
// from_glib_none(ffi::clutter_event_get_device_tool(
// self.to_glib_none().0,
// ))
// }
// }
// /// Returns the event type.
// pub fn get_event_type(&self) -> EventType {
// from_glib(self.as_ref().type_)
// }
// /// Returns whether the event was sent explicitly.
// #[cfg_attr(feature = "cargo-clippy", allow(cast_lossless))]
// pub fn get_send_event(&self) -> bool {
// from_glib(self.as_ref().send_event as i32)
// }
/// Returns `true` if the event type matches `T`.
pub fn is<T: FromEvent>(&self) -> bool {
T::is(self)
}
/// Tries to downcast to a specific event type.
pub fn downcast<T: FromEvent>(self) -> Result<T, Self> {
T::from(self)
}
/// Tries to downcast to a specific event type.
pub fn downcast_ref<T: FromEvent>(&self) -> Option<&T> {
if T::is(self) {
unsafe { Some(&*(self as *const _ as *const _)) }
} else {
None
}
}
/// Tries to downcast to a specific event type.
pub fn downcast_mut<T: FromEvent>(&mut self) -> Option<&mut T> {
if T::is(self) {
unsafe { Some(&mut *(self as *mut _ as *mut _)) }
} else {
None
}
}
}
impl fmt::Debug for Event {
fn fmt(&self, fmt: &mut fmt::Formatter) -> Result<(), fmt::Error> {
fmt.debug_struct("Event")
.field("inner", &self.0)
// .field("type", &self.get_event_type())
.finish()
}
}
/// A helper trait implemented by all event subtypes.
pub trait FromEvent: Sized {
fn is(ev: &Event) -> bool;
fn from(ev: Event) -> Result<Self, Event>;
}
impl FromEvent for Event {
#[inline]
fn is(_ev: &Event) -> bool {
skip_assert_initialized!();
true
}
#[inline]
fn from(ev: Event) -> Result<Self, Event> {
skip_assert_initialized!();
Ok(ev)
}
}