Package Exports

@storybook/channels

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@storybook/channels) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

Storybook Channel

Storybook Channel is similar to an EventEmitter. Channels are used with Storybook implementations to send/receive events between the Storybook Manager and the Storybook Renderer.

class Channel {
  addListener(type, listener) {}
  addPeerListener(type, listener) {} // ignore events from itself
  emit(type, ...args) {}
  eventNames() {}
  listenerCount(type) {}
  listeners(type) {}
  on(type, listener) {}
  once(type, listener) {}
  prependListener(type, listener) {}
  prependOnceListener(type, listener) {}
  removeAllListeners(type) {}
  removeListener(type, listener) {}
}

The channel takes a Transport object as a parameter which will be used to send/receive messages. The transport object should implement this interface.

class Transport {
  send(event) {}
  setHandler(handler) {}
}

Currently, channels are baked into storybook implementations and therefore this module is not designed to be used directly by addon developers. When developing addons, use the getChannel method exported by @storybook/addons module. For this to work, Storybook implementations should use the setChannel method before loading addons.

import addons from '@storybook/addons';

const channel = addons.getChannel();

For more information visit: storybook.js.org