events_emitter 0.4.0

An intuitive Event-based system, inspired by NodeJS's Event Emitter. Allows for multiple data types with type safety events. Based on JavaScript and suitable for Dart and Flutter.

0.4.0

Added:

• EventListener properties once and protected added.
• EventListener callbacks onAdd, onRemove and onCancel.
• EventListener handles custom events, they can also act like normal events. This is used to add context to an event if needed.
• EventEmitter .on() can catch the data as well as the Event<T> of the data.

[!] Changed:

• EventStreamEmitter was renamed to StreamEventEmitter.
• Event property topic renamed to type, to match JavaScript events.
• Event property message renamed to data.
• StreamEventEmitter's stream controller is now public.

[!] Removed:

• EventEmitter sync.
• EventListener property stream, subscription and messageType.

Massive BREAKING CHANGES:

• EventEmitter was refactored to not depend on Streams, which means it now manages the callbacks itself. The emitter can have more complex listener logic. Before it would depend on StreamEventEmitter.

• File structure was changed to be more organized. This means you might need to update your imports.

• Sync is no longer a thing in the EventEmitter, it's a StreamEventEmitter only thing now.

• Other changes: [!]

0.3.1

Added:

• shield.io badges

Changed:

• ChangeLog's format

0.3.0

Changed:

• .onAny in EventEmitter now returns an EventListener

Fixed:

• In some cases, canceled listeners didn't get removed, now it's more accurate

0.2.1

Fixed:

• Make package only dart dependant

0.2.0

Added:

• .emitEvent() emits an existing event, without having to create a new one

0.1.0

Added:

• rxdart package dependency, for better-implemented streams

Fixed:

• Cast with dynamic type would break unexpectedly

0.0.7

Fixed:

• .onAny return type (Still has errors)

0.0.6

Changed:

• Filter .onAny<T>() by type

Fixed:

• pubspec.yaml clean up
• Example with final

0.0.5+2

Changed:

• Package description and documentation for type safety promotion

0.0.5+1

Added:

• More documentation (Why is this package different?)

Fixed:

• Documentation typos

0.0.5

Changed:

• once in EventEmitter now returns a Future with the message, allowing to await (still needs a callback)
• Separated EventEmitter and EventStreamEmitter classes into different files
• Internal variable names for simplification

Removed:

• send for simplification, the same could be achieved with emit

0.0.4

Removed:

• Package dependency flutter_lints

0.0.3

Fixed:

• StreamSubscription, cancel instances

0.0.2

Changed:

• on to return an EventListener, instead of a StreamSubscription

Fixed:

• Package description (was too long)

0.0.1

Initial release: EventEmitter