@dccs/react-datagrid-mui/lib/useDataState.js

A light datagrid build upon react-table-plain for React in a Material-UI theme.

"use strict";
var __assign = (this && this.__assign) || function () {
    __assign = Object.assign || function(t) {
        for (var s, i = 1, n = arguments.length; i < n; i++) {
            s = arguments[i];
            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
                t[p] = s[p];
        }
        return t;
    };
    return __assign.apply(this, arguments);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.useDataState = void 0;
var React = require("react");
function getStateFromStore(props) {
    if (props && props.persistState && props.persistState.uniqueID) {
        if (props.persistState.store === "localStorage") {
            var state = localStorage.getItem(props.persistState.uniqueID);
            if (state) {
                return JSON.parse(state);
            }
        }
        else if (props.persistState.store === "sessionStorage") {
            var state = sessionStorage.getItem(props.persistState.uniqueID);
            if (state) {
                return JSON.parse(state);
            }
        }
    }
    return undefined;
}
function useDataState(props) {
    var stateFromStore = getStateFromStore(props);
    var _a = React.useState((stateFromStore && stateFromStore.rowsPerPage) ||
        (props && props.initialRowsPerPage) ||
        10), rowsPerPage = _a[0], _setRowsPerPage = _a[1];
    var _b = React.useState((stateFromStore && stateFromStore.page) || (props && props.initialPage) || 0), page = _b[0], setPage = _b[1];
    var _c = React.useState((stateFromStore && stateFromStore.total) || 0), total = _c[0], setTotal = _c[1];
    var _d = React.useState((stateFromStore && stateFromStore.orderBy) ||
        (props && props.initialOrderBy)), orderBy = _d[0], setOrderBy = _d[1];
    var _e = React.useState((stateFromStore && stateFromStore.sort) || (props && props.initialSort)), sort = _e[0], setSort = _e[1];
    var _f = React.useState((stateFromStore && stateFromStore.filter) || props.initialFilter), filter = _f[0], setFilter = _f[1];
    // Always use initial here? not sure
    var _g = React.useState(!(props && props.initialLoad === false)), allowLoad = _g[0], setAllowLoad = _g[1];
    var _h = React.useState([]), data = _h[0], setData = _h[1];
    var _j = React.useState(false), loading = _j[0], setLoading = _j[1];
    var _k = React.useState(false), error = _k[0], setError = _k[1];
    var _l = React.useState(false), reloadDummy = _l[0], setReload = _l[1];
    var reload = function () {
        setReload(!reloadDummy);
    };
    function setFilterProp(key, value) {
        setFilter(function (f) {
            var _a;
            return (__assign(__assign({}, f), (_a = {}, _a[key] = value, _a)));
        });
    }
    function handleChangePage(p) {
        setPage(p);
    }
    function handleChangeRowsPerPage(rows) {
        setRowsPerPage(rows);
    }
    function handleChangeOrderBy(ob) {
        var s;
        if (orderBy && orderBy === ob) {
            s = sort === "desc" ? "asc" : "desc";
        }
        setOrderBy(ob);
        setSort(s);
    }
    function handleChangeFilter(ob, value) {
        setFilter(function (f) {
            var _a;
            return (__assign(__assign({}, f), (_a = {}, _a[ob] = value, _a)));
        });
    }
    function setRowsPerPage(count) {
        setPage(0); // reset to first page.
        _setRowsPerPage(count);
    }
    React.useEffect(function () {
        if (allowLoad) {
            load();
        }
        else {
            // allowLoad on second try.
            setAllowLoad(true);
        }
    }, [
        rowsPerPage,
        page,
        orderBy,
        sort === "desc",
        reloadDummy,
        // Why JSON.stringify?
        // The way the useEffect dependency array works is by checking for strict (===) equivalency between all of the items in the array from the previous render and the new render.
        // Example:  {}==={}                                   -> false -> different -> rerender
        // Example2: JSON.stringify({}) === JSON.stringify({}) -> true  -> same      -> no rerender
        JSON.stringify(filter),
    ]);
    function load() {
        if (props.onLoadData) {
            setLoading(true);
            setError(false);
            props
                .onLoadData(page + 1, rowsPerPage, orderBy, sort, filter)
                .then(function (_a) {
                var d = _a.data, t = _a.total;
                setTotal(t);
                setData(d);
                setLoading(false);
            })
                .catch(function () {
                setLoading(false);
                setError(true);
            });
        }
    }
    var state = {
        rowsPerPage: rowsPerPage,
        setRowsPerPage: setRowsPerPage,
        page: page,
        setPage: setPage,
        total: total,
        setTotal: setTotal,
        orderBy: orderBy,
        setOrderBy: setOrderBy,
        sort: sort,
        setSort: setSort,
        filter: filter,
        setFilter: setFilter,
        setFilterProp: setFilterProp,
        allowLoad: allowLoad,
        setAllowLoad: setAllowLoad,
        data: data,
        loading: loading,
        error: error,
        reload: reload,
        handleChangePage: handleChangePage,
        handleChangeRowsPerPage: handleChangeRowsPerPage,
        handleChangeOrderBy: handleChangeOrderBy,
        handleChangeFilter: handleChangeFilter,
        load: load,
    };
    React.useEffect(function () {
        if (props && props.persistState && props.persistState.uniqueID) {
            if (props.persistState.store === "localStorage") {
                localStorage.setItem(props.persistState.uniqueID, JSON.stringify(state));
            }
            else if (props.persistState.store === "sessionStorage") {
                sessionStorage.setItem(props.persistState.uniqueID, JSON.stringify(state));
            }
        }
    }, [state]);
    return state;
}
exports.useDataState = useDataState;