✨ feat(examples/wasm): 在Cargo.toml中为button-driver添加wasm特性，简化lib.rs代码并修改Instant实现

Author: zhangzqs

examples/wasm/Cargo.lock

@@ -6,7 +6,7 @@ edition = "2021"
 [dependencies]
 wasm-bindgen = { version = "0.2" }
 web-sys = { version = "0.3.69", features = ["Window", "Document", "Element", "MouseEvent"] }
-button-driver = { path = "../../" }
+button-driver = { path = "../../", features = ["wasm"] }
 log = "0.4.22"
 wasm-logger = "0.2.0"
 

examples/wasm/Cargo.toml

@@ -1,42 +1,19 @@
 //! A WebAssembly example demonstrating button driver usage in the browser.
-//! This example shows how to implement a custom `Instant` provider using JavaScript's `Date.now()`.
 //!
 //! To run this example:
 //! 1. Install trunk: `cargo install trunk`
 //! 2. Run: `trunk serve`
 //! 3. Open your browser at `http://localhost:8080`
+//!
+//! Required features: `wasm` (which includes `std` and `js-sys`).
 
-use std::{cell::RefCell, ops::Sub, rc::Rc, time::Duration};
+use std::{cell::RefCell, rc::Rc};
 
-use button_driver::{Button, ButtonConfig, InstantProvider, Mode, PinWrapper};
+use button_driver::{Button, ButtonConfig, Mode, PinWrapper};
 use log::info;
 use wasm_bindgen::{closure::Closure, JsCast};
 use web_sys::{js_sys::Date, MouseEvent};
 
-#[derive(PartialEq, Clone)]
-struct WasmInstant(u64);
-
-impl WasmInstant {
-    fn now() -> WasmInstant {
-        WasmInstant(Date::now() as u64)
-    }
-}
-
-impl Sub for WasmInstant {
-    type Output = Duration;
-
-    fn sub(self, rhs: Self) -> Self::Output {
-        let delta_ms = self.0 - rhs.0;
-        return Duration::from_millis(delta_ms);
-    }
-}
-
-impl InstantProvider<Duration> for WasmInstant {
-    fn now() -> Self {
-        WasmInstant::now()
-    }
-}
-
 #[derive(Clone, Default)]
 struct ButtonInput(Rc<RefCell<bool>>);
 
@@ -77,7 +54,7 @@ pub fn main() {
         mouse_up_handler.forget();
     }
     {
-        let mut button = Button::<_, WasmInstant>::new(
+        let mut button = Button::<_, Date>::new(
             pin_state,
             ButtonConfig {
                 mode: Mode::PullDown,