/// <summary>
/// Default entry into managed code.
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public async Task <object> Invoke(object input)
{
if (console == null)
{
console = await WebSharpJs.NodeJS.Console.Instance();
}
try
{
Func <object, Task <object> > listener1 = (async(commands) =>
{
console.Log($"Listener 1 executed");
return(null);
});
var eventEmitter = await EventEmitter.Create();
eventEmitter.AddListener("connection", listener1);
eventEmitter.AddListener("connection", (async(commands) =>
{
console.Log($"Listener 2 executed.");
return(null);
}));
console.Log($"# of 'connection' listeners {await eventEmitter.ListenerCount("connection")}");
console.Log($"emitted {await eventEmitter.Emit("connection")}");
console.Log("Removing all listeners");
eventEmitter.RemoveAllListeners("connection");
console.Log($"# of 'connection' listeners {await eventEmitter.ListenerCount("connection")}");
eventEmitter.Once("foo", (async(x) =>
{
console.Log("a");
return(null);
}));
eventEmitter.PrependOnceListener("foo", (async(x) =>
{
console.Log("b");
return(null);
}));
eventEmitter.Emit("foo"); // Should be logged first b then a
eventEmitter.Emit("foo"); // Listeners will not be called again.
}
catch (Exception exc) { console.Log($"extension exception: {exc.Message}"); }
return(null);
}
