50 lines
2.6 KiB
JavaScript
50 lines
2.6 KiB
JavaScript
import { computeChangedPath } from './compute-changed-path';
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function isNotUndefined(value) {
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return typeof value !== 'undefined';
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}
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export function handleMutable(state, mutable) {
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// shouldScroll is true by default, can override to false.
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const shouldScroll = mutable.shouldScroll ?? true;
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let previousNextUrl = state.previousNextUrl;
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let nextUrl = state.nextUrl;
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if (isNotUndefined(mutable.patchedTree)) {
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// If we received a patched tree, we need to compute the changed path.
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const changedPath = computeChangedPath(state.tree, mutable.patchedTree);
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if (changedPath) {
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// If the tree changed, we need to update the nextUrl
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previousNextUrl = nextUrl;
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nextUrl = changedPath;
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} else if (!nextUrl) {
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// if the tree ends up being the same (ie, no changed path), and we don't have a nextUrl, then we should use the canonicalUrl
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nextUrl = state.canonicalUrl;
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}
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// otherwise this will be a no-op and continue to use the existing nextUrl
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}
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return {
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// Set href.
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canonicalUrl: mutable.canonicalUrl ?? state.canonicalUrl,
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renderedSearch: mutable.renderedSearch ?? state.renderedSearch,
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pushRef: {
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pendingPush: isNotUndefined(mutable.pendingPush) ? mutable.pendingPush : state.pushRef.pendingPush,
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mpaNavigation: isNotUndefined(mutable.mpaNavigation) ? mutable.mpaNavigation : state.pushRef.mpaNavigation,
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preserveCustomHistoryState: isNotUndefined(mutable.preserveCustomHistoryState) ? mutable.preserveCustomHistoryState : state.pushRef.preserveCustomHistoryState
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},
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// All navigation requires scroll and focus management to trigger.
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focusAndScrollRef: {
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apply: shouldScroll ? isNotUndefined(mutable?.scrollableSegments) ? true : state.focusAndScrollRef.apply : false,
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onlyHashChange: mutable.onlyHashChange || false,
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hashFragment: shouldScroll ? // #top is handled in layout-router.
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mutable.hashFragment && mutable.hashFragment !== '' ? decodeURIComponent(mutable.hashFragment.slice(1)) : state.focusAndScrollRef.hashFragment : null,
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segmentPaths: shouldScroll ? mutable?.scrollableSegments ?? state.focusAndScrollRef.segmentPaths : []
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},
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// Apply cache.
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cache: mutable.cache ? mutable.cache : state.cache,
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// Apply patched router state.
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tree: isNotUndefined(mutable.patchedTree) ? mutable.patchedTree : state.tree,
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nextUrl,
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previousNextUrl: previousNextUrl,
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debugInfo: mutable.collectedDebugInfo ?? null
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};
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}
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//# sourceMappingURL=handle-mutable.js.map
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