OnMessageExternalEvent class

Constructors

OnMessageExternalEvent({required Object? message, required MessageSender sender, required JSFunction sendResponse})

Properties

hashCode → int

The hash code for this object.

no setter, inherited

message → Object?

The message sent by the calling script.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

sender → MessageSender

final

sendResponse → JSFunction

Function to call (at most once) when you have a response. The argument should be any JSON-ifiable object. If you have more than one onMessage listener in the same document, then only one may send a response. This function becomes invalid when the event listener returns, unless you return true from the event listener to indicate you wish to send a response asynchronously (this will keep the message channel open to the other end until sendResponse is called).

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited