fix: implement clear_onstatechange and fix some event types

Author: b-ma

src/context/base.rs

@@ -309,7 +309,7 @@ pub trait BaseAudioContext {
     fn set_onstatechange<F: FnMut(Event) + Send + 'static>(&self, mut callback: F) {
         let callback = move |_| {
             callback(Event {
-                type_: "onstatechange",
+                type_: "statechange",
             })
         };
 
@@ -319,6 +319,10 @@ pub trait BaseAudioContext {
         );
     }
 
+    fn clear_onstatechange(&self) {
+        self.base().clear_event_handler(EventType::StateChange);
+    }
+
     #[cfg(test)]
     fn mock_registration(&self) -> AudioContextRegistration {
         AudioContextRegistration {

src/context/online.rs

@@ -329,7 +329,7 @@ impl AudioContext {
     pub fn set_onsinkchange<F: FnMut(Event) + Send + 'static>(&self, mut callback: F) {
         let callback = move |_| {
             callback(Event {
-                type_: "onsinkchange",
+                type_: "sinkchange",
             })
         };