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19 lines
1.0 KiB
TypeScript
19 lines
1.0 KiB
TypeScript
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import { CellValue } from "app/common/DocActions";
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import { FilterState, makeFilterState } from "app/common/FilterState";
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export type ColumnFilterFunc = (value: CellValue) => boolean;
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// Returns a filter function for a particular column: the function takes a cell value and returns
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// whether it's accepted according to the given FilterState.
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export function makeFilterFunc({ include, values }: FilterState): ColumnFilterFunc {
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// NOTE: This logic results in complex values and their stringified JSON representations as equivalent.
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// For example, a TypeError in the formula column and the string '["E","TypeError"]' would be seen as the same.
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// TODO: This narrow corner case seems acceptable for now, but may be worth revisiting.
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return (val: CellValue) => (values.has(Array.isArray(val) ? JSON.stringify(val) : val) === include);
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}
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// Given a JSON string, returns a ColumnFilterFunc
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export function buildColFilter(filterJson: string | undefined): ColumnFilterFunc | null {
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return filterJson ? makeFilterFunc(makeFilterState(filterJson)) : null;
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}
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