| 22 | } |
| 23 | |
| 24 | export function createBridge(contentWindow: any, wall?: Wall): FrontendBridge { |
| 25 | if (wall == null) { |
| 26 | wall = { |
| 27 | listen(fn) { |
| 28 | // $FlowFixMe[missing-local-annot] |
| 29 | const onMessage = ({data}) => { |
| 30 | fn(data); |
| 31 | }; |
| 32 | window.addEventListener('message', onMessage); |
| 33 | return () => { |
| 34 | window.removeEventListener('message', onMessage); |
| 35 | }; |
| 36 | }, |
| 37 | send(event: string, payload: any, transferable?: Array<any>) { |
| 38 | contentWindow.postMessage({event, payload}, '*', transferable); |
| 39 | }, |
| 40 | }; |
| 41 | } |
| 42 | |
| 43 | return (new Bridge(wall): FrontendBridge); |
| 44 | } |
| 45 | |
| 46 | export function initialize( |
| 47 | contentWindow: any, |