playtpus_ui/hooks/pagination.js

React Component Libary

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var react_1 = require("react");
var usePagination = function (len, max) {
    var _a = react_1.useState(len), length = _a[0], setLength = _a[1];
    var _b = react_1.useState(0), page = _b[0], setPage = _b[1];
    var maxPage = Math.ceil(length / max);
    var canGoBack = page > 0;
    var canGoForward = page < (maxPage - 1);
    var backward = function () { return canGoBack && setPage(page - 1); };
    var forward = function () { return canGoForward && setPage(page + 1); };
    react_1.useEffect(function () { return setLength(len); }, [len]);
    return {
        page: page,
        needsPagination: maxPage > 1,
        canGoBack: canGoBack,
        canGoForward: canGoForward,
        actions: {
            forward: forward, backward: backward
        }
    };
};
exports.default = usePagination;
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