43 lines
2.4 KiB
JavaScript
43 lines
2.4 KiB
JavaScript
// TODO: We should only have to export `normalizeFlightData`, however because the initial flight data
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// that gets passed to `createInitialRouterState` doesn't conform to the `FlightDataPath` type (it's missing the root segment)
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// we're currently exporting it so we can use it directly. This should be fixed as part of the unification of
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// the different ways we express `FlightSegmentPath`.
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export function getFlightDataPartsFromPath(flightDataPath) {
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// Pick the last 4 items from the `FlightDataPath` to get the [tree, seedData, viewport, isHeadPartial].
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const flightDataPathLength = 4;
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// tree, seedData, and head are *always* the last three items in the `FlightDataPath`.
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const [tree, seedData, head, isHeadPartial] = flightDataPath.slice(-flightDataPathLength);
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// The `FlightSegmentPath` is everything except the last three items. For a root render, it won't be present.
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const segmentPath = flightDataPath.slice(0, -flightDataPathLength);
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var _segmentPath_;
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return {
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// TODO: Unify these two segment path helpers. We are inconsistently pushing an empty segment ("")
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// to the start of the segment path in some places which makes it hard to use solely the segment path.
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// Look for "// TODO-APP: remove ''" in the codebase.
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pathToSegment: segmentPath.slice(0, -1),
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segmentPath,
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// if the `FlightDataPath` corresponds with the root, there'll be no segment path,
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// in which case we default to ''.
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segment: (_segmentPath_ = segmentPath[segmentPath.length - 1]) != null ? _segmentPath_ : '',
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tree,
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seedData,
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head,
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isHeadPartial,
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isRootRender: flightDataPath.length === flightDataPathLength
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};
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}
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export function getNextFlightSegmentPath(flightSegmentPath) {
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// Since `FlightSegmentPath` is a repeated tuple of `Segment` and `ParallelRouteKey`, we slice off two items
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// to get the next segment path.
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return flightSegmentPath.slice(2);
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}
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export function normalizeFlightData(flightData) {
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// FlightData can be a string when the server didn't respond with a proper flight response,
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// or when a redirect happens, to signal to the client that it needs to perform an MPA navigation.
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if (typeof flightData === 'string') {
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return flightData;
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}
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return flightData.map(getFlightDataPartsFromPath);
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}
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//# sourceMappingURL=flight-data-helpers.js.map
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