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use seed::prelude::*;
use wasm_bindgen::JsCast;
pub struct Events<Msg> {
pub events: Vec<EventHandler<Msg>>,
}
impl<Msg> Clone for Events<Msg> {
fn clone(&self) -> Self {
Self {
events: self.events.clone(),
}
}
}
impl<Msg> Default for Events<Msg> {
fn default() -> Self {
Self { events: vec![] }
}
}
impl<Msg> UpdateEl<El<Msg>> for Events<Msg> {
fn update(self, el: &mut El<Msg>) {
self.events.update(el)
}
}
macro mouse_events( $( $event:ident: $ty:ty { $( $(#[$doc:meta])? $name:ident = $ev:expr $(,)? )* } $(,)? )* ) {
$(
impl<Msg> Events<Msg> {
$(
$( #[$doc] )?
pub fn $name(
&mut self,
handler: impl FnOnce($ty) -> Msg + 'static + Clone,
) -> &mut Self {
self.events.push($event($ev, handler));
self
}
)*
}
)*
}
mouse_events! {
ev: web_sys::Event {
load = Ev::Load,
unload = Ev::Unload,
abort = Ev::Abort,
error = Ev::Error,
select = Ev::Select,
}
focus_ev: web_sys::FocusEvent {
blur = Ev::Blur,
focus = Ev::Focus,
focus_in = Ev::from("focusin"),
focus_out = Ev::from("focusout"),
}
mouse_ev: web_sys::MouseEvent {
aux_click = Ev::AuxClick,
click = Ev::Click,
double_click = Ev::DblClick,
mouse_down = Ev::MouseDown,
mouse_enter = Ev::MouseEnter,
mouse_leave = Ev::MouseLeave,
mouse_move = Ev::MouseMove,
mouse_out = Ev::MouseOut,
mouse_over = Ev::MouseOver,
mouse_up = Ev::MouseUp,
}
pointer_ev: web_sys::PointerEvent {
pointer_cancel = Ev::PointerCancel,
pointer_down = Ev::PointerDown,
pointer_enter = Ev::PointerEnter,
pointer_leave = Ev::PointerLeave,
pointer_move = Ev::PointerMove,
pointer_out = Ev::PointerOut,
pointer_over = Ev::PointerOver,
pointer_up = Ev::PointerUp,
lost_pointer_capture = Ev::LostPointerCapture,
got_pointer_capture = Ev::GotPointerCapture,
}
wheel_ev: web_sys::WheelEvent {
wheel = Ev::Wheel,
}
input_ev: web_sys::InputEvent {
before_input = Ev::from("beforeinput")
input = Ev::Input,
}
keyboard_ev: web_sys::KeyboardEvent {
key_down = Ev::KeyDown,
key_up = Ev::KeyUp,
}
composition_ev: web_sys::CompositionEvent {
composition_start = Ev::CompositionStart,
composition_update = Ev::CompositionUpdate,
composition_end = Ev::CompositionEnd,
}
drag_ev: web_sys::DragEvent {
drag = Ev::Drag,
drag_end = Ev::DragEnd,
drag_enter = Ev::DragEnter,
drag_leave = Ev::DragLeave,
drag_over = Ev::DragOver,
drag_start = Ev::DragStart,
drop = Ev::Drop,
}
}
macro event_creator( $( $(#[$doc:meta])? $name:ident($ty:ty) $(,)? )* ) {
$(
$( #[$doc] )?
fn $name<Ms>(
trigger: impl Into<Ev>,
handler: impl FnOnce($ty) -> Ms + 'static + Clone,
) -> EventHandler<Ms> {
let closure_handler = move |event: web_sys::Event| {
(handler.clone())(event.dyn_ref::<$ty>().unwrap().clone())
};
EventHandler::new(trigger, closure_handler)
}
)*
}
event_creator! {
wheel_ev(web_sys::WheelEvent),
composition_ev(web_sys::CompositionEvent),
focus_ev(web_sys::FocusEvent),
drag_ev(web_sys::DragEvent),
input_ev(web_sys::InputEvent)
}