Function registerExternalUriOpener

registerExternalUriOpener(
    id: string,
    opener: ExternalUriOpener,
    metadata: ExternalUriOpenerMetadata,
): Disposable
Register a new ExternalUriOpener.

When a uri is about to be opened, an onOpenExternalUri:SCHEME activation event is fired.
Parameters
- id: string
  Unique id of the opener, such as myExtension.browserPreview. This is used in settings and commands to identify the opener.
- opener: ExternalUriOpener
  Opener to register.
- metadata: ExternalUriOpenerMetadata
  Additional information about the opener.
Returns Disposable
Disposable that unregisters the opener.
- Defined in packages/plugin/src/theia.proposed.externalUriOpener.d.ts:156