Function respondToRequest

packages/sanddance-embed/src/sanddance-embed.ts:53–96

(requestWithSource: MessageRequestWithSource)

    }

    export function respondToRequest(requestWithSource: MessageRequestWithSource) {
        requests.push(requestWithSource);
        const copy: MessageRequestWithSource = { ...requestWithSource };
        delete copy.source;
        const request: MessageRequest = { ...copy };
        let response: MessageResponse;
        switch (request.action) {
            case 'init': {
                response = {
                    request,
                };
                break;
            }
            case 'load': {
                const request_load = request as MessageRequest_Load;
                load(request_load.data, request_load.insight).then(() => {
                    response = {
                        request,
                    };
                    requestWithSource.source.postMessage(response, '*');
                });
                //don't keep a copy of the array
                delete request_load.data;
                break;
            }
            case 'getData': {
                response = <MessageResponse_GetData>{
                    request,
                    data: sandDanceExplorer.state.dataContent.data,
                };
                break;
            }
            case 'getInsight': {
                response = <MessageResponse_GetInsight>{
                    request,
                    insight: sandDanceExplorer.viewer.getInsight(),
                };
                break;
            }
        }
        if (response) {
            requestWithSource.source.postMessage(response, '*');
        }
    }

    window.addEventListener('message', e => {
        let payload: object[] | DataWithInsight | MessageRequest = e.data;