115 lines
3.1 KiB
Rust
115 lines
3.1 KiB
Rust
use crate::traits::StaticEvent;
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use wasm_bindgen::JsCast;
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use web_sys::{EventTarget, HtmlInputElement, HtmlTextAreaElement};
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macro_rules! make_event {
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($name:ident, $type:literal => $event:path) => {
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pub struct $name {
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event: $event,
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}
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impl StaticEvent for $name {
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const EVENT_TYPE: &'static str = $type;
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#[inline]
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fn unchecked_from_event(event: web_sys::Event) -> Self {
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Self {
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event: event.unchecked_into(),
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}
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}
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}
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impl $name {
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#[inline] pub fn prevent_default(&self) { self.event.prevent_default(); }
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#[inline] pub fn target(&self) -> Option<EventTarget> { self.event.target() }
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#[inline]
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pub fn dyn_target<A>(&self) -> Option<A> where A: JsCast {
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self.target()?.dyn_into().ok()
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}
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}
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};
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}
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macro_rules! make_mouse_event {
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($name:ident, $type:literal) => {
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make_event!($name, $type => web_sys::MouseEvent);
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impl $name {
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#[inline] pub fn x(&self) -> i32 { self.event.client_x() }
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#[inline] pub fn y(&self) -> i32 { self.event.client_y() }
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#[inline] pub fn screen_x(&self) -> i32 { self.event.screen_x() }
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#[inline] pub fn screen_y(&self) -> i32 { self.event.screen_y() }
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}
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};
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}
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macro_rules! make_keyboard_event {
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($name:ident, $type:literal) => {
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make_event!($name, $type => web_sys::KeyboardEvent);
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impl $name {
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// TODO return enum or something
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#[inline] pub fn key(&self) -> String { self.event.key() }
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}
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};
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}
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macro_rules! make_focus_event {
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($name:ident, $type:literal) => {
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make_event!($name, $type => web_sys::FocusEvent);
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};
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}
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make_mouse_event!(Click, "click");
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make_mouse_event!(MouseEnter, "mouseenter");
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make_mouse_event!(MouseLeave, "mouseleave");
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make_mouse_event!(DoubleClick, "dblclick");
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make_keyboard_event!(KeyDown, "keydown");
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make_keyboard_event!(KeyUp, "keyup");
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make_focus_event!(Focus, "focus");
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make_focus_event!(Blur, "blur");
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make_event!(Input, "input" => web_sys::InputEvent);
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impl Input {
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// TODO should this work on other types as well ?
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pub fn value(&self) -> Option<String> {
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let target = self.target()?;
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if let Some(target) = target.dyn_ref::<HtmlInputElement>() {
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// TODO check the <input> element's type ?
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Some(target.value())
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} else if let Some(target) = target.dyn_ref::<HtmlTextAreaElement>() {
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Some(target.value())
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} else {
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None
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}
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}
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}
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make_event!(Change, "change" => web_sys::Event);
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// TODO add in a value method as well, the same as Input::value
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impl Change {
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// https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement
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pub fn checked(&self) -> Option<bool> {
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let target = self.dyn_target::<HtmlInputElement>()?;
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match target.type_().as_str() {
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"checkbox" | "radio" => Some(target.checked()),
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_ => None,
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}
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}
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}
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