Mailspring/app/internal_packages/message-autoload-images/lib/main.es6

import { ComponentRegistry, ExtensionRegistry } from 'nylas-exports';

import AutoloadImagesExtension from './autoload-images-extension';
import AutoloadImagesHeader from './autoload-images-header';

/*
All packages must export a basic object that has at least the following 3
methods:

1. `activate` - Actions to take once the package gets turned on.
Pre-enabled packages get activated on N1 bootup. They can also be
activated manually by a user.

2. `deactivate` - Actions to take when a package gets turned off. This can
happen when a user manually disables a package.

3. `serialize` - A simple serializable object that gets saved to disk
before N1 quits. This gets passed back into `activate` next time N1 boots
up or your package is manually activated.
*/
export function activate() {
  // Register Message List Actions we provide globally
  ExtensionRegistry.MessageView.register(AutoloadImagesExtension);
  ComponentRegistry.register(AutoloadImagesHeader, {
    role: 'message:BodyHeader',
  });
}

export function serialize() {}

export function deactivate() {
  ExtensionRegistry.MessageView.unregister(AutoloadImagesExtension);
  ComponentRegistry.unregister(AutoloadImagesHeader);
}