feat: `MessageChannel` and `MessagePort` (#11051)

This commit introduces support for MessageChannel and MessagePort.
MessagePorts can be transfered across other MessagePorts.

1 files changed, 1 insertions, 38 deletions

diff --git a/extensions/web/03_abort_signal.js b/extensions/web/03_abort_signal.js
index 6551380da..54a485dab 100644
--- a/extensions/web/03_abort_signal.js
+++ b/extensions/web/03_abort_signal.js
@@ -3,7 +3,7 @@
 
 ((window) => {
   const webidl = window.__bootstrap.webidl;
-  const { setIsTrusted } = window.__bootstrap.event;
+  const { setIsTrusted, defineEventHandler } = window.__bootstrap.event;
 
   const add = Symbol("add");
   const signalAbort = Symbol("signalAbort");
@@ -81,43 +81,6 @@
 
   webidl.configurePrototype(AbortController);
 
-  const handlerSymbol = Symbol("eventHandlers");
-
-  function makeWrappedHandler(handler) {
-    function wrappedHandler(...args) {
-      if (typeof wrappedHandler.handler !== "function") {
-        return;
-      }
-      return wrappedHandler.handler.call(this, ...args);
-    }
-    wrappedHandler.handler = handler;
-    return wrappedHandler;
-  }
-  // TODO(benjamingr) reuse this here and websocket where possible
-  function defineEventHandler(emitter, name) {
-    // HTML specification section 8.1.5.1
-    Object.defineProperty(emitter, `on${name}`, {
-      get() {
-        return this[handlerSymbol]?.get(name)?.handler;
-      },
-      set(value) {
-        if (!this[handlerSymbol]) {
-          this[handlerSymbol] = new Map();
-        }
-        let handlerWrapper = this[handlerSymbol]?.get(name);
-        if (handlerWrapper) {
-          handlerWrapper.handler = value;
-        } else {
-          handlerWrapper = makeWrappedHandler(value);
-          this.addEventListener(name, handlerWrapper);
-        }
-        this[handlerSymbol].set(name, handlerWrapper);
-      },
-      configurable: true,
-      enumerable: true,
-    });
-  }
-
   webidl.converters["AbortSignal"] = webidl.createInterfaceConverter(
     "AbortSignal",
     AbortSignal,