rui-react/dist/components/AutoComplete/autoComplete.js

React UI library

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);
};
var __rest = (this && this.__rest) || function (s, e) {
    var t = {};
    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
        t[p] = s[p];
    if (s != null && typeof Object.getOwnPropertySymbols === "function")
        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
                t[p[i]] = s[p[i]];
        }
    return t;
};
import Input from "../Input/input";
import React, { useEffect, useRef, useState, } from "react";
import { scopedClass } from "../../helpers/utils";
import classNames from "classnames";
import useDebounce from "../../hooks/useDebounce";
import useClickOutside from "../../hooks/useClickOutside";
import { OptionList } from "./optionList";
var AutoComplete = function (props) {
    var _a;
    var fetchSuggestion = props.fetchSuggestion, onSelect = props.onSelect, delay = props.delay, size = props.size, restProps = __rest(props, ["fetchSuggestion", "onSelect", "delay", "size"]);
    var _b = useState([]), suggestions = _b[0], setSuggestions = _b[1];
    var _c = useState(false), optionListVisible = _c[0], setOptionListVisible = _c[1];
    var _d = useState(""), value = _d[0], setValue = _d[1];
    var debouncedValue = useDebounce(value, delay);
    var triggerSuggestions = useRef(false);
    var _e = useState(false), isLoading = _e[0], setIsLoading = _e[1];
    var _f = useState(-1), candidateIndex = _f[0], setCandidateIndex = _f[1];
    var optionListRef = useRef(null);
    var inputWrapperRef = useRef(null);
    var componentRef = useRef(null);
    var clearSuggestions = function () { return setSuggestions([]); };
    useEffect(function () {
        if (!triggerSuggestions.current)
            return;
        var results = fetchSuggestion(debouncedValue);
        if (results instanceof Promise) {
            setIsLoading(true);
            results
                .then(function (data) {
                if (data.length) {
                    setSuggestions(data);
                }
                else {
                    setOptionListVisible(false);
                }
                setIsLoading(false);
            })
                .catch(function (error) {
                setIsLoading(false);
                setOptionListVisible(false);
            });
        }
        else {
            if (results.length) {
                setSuggestions(results);
            }
            else {
                setOptionListVisible(false);
            }
        }
    }, [debouncedValue, fetchSuggestion]);
    useClickOutside(componentRef, function () { return setOptionListVisible(false); });
    var handleChange = function (e) {
        setValue(e.target.value);
        setOptionListVisible(true);
        triggerSuggestions.current = true;
    };
    var handleSelect = function (selectedValue) {
        setValue(selectedValue);
        if (onSelect)
            onSelect(selectedValue);
        setOptionListVisible(false);
        triggerSuggestions.current = false;
    };
    var handleKeyDown = function (e) {
        if (optionListRef.current === null || inputWrapperRef.current === null)
            return;
        var listHeight = optionListRef.current.clientHeight;
        var itemHeight = inputWrapperRef.current.clientHeight;
        switch (e.key) {
            case "ArrowUp":
                e.preventDefault();
                if (candidateIndex < 0)
                    return;
                if ((candidateIndex + 1) * itemHeight > listHeight)
                    optionListRef.current.scrollTop -= itemHeight;
                setCandidateIndex(function (index) { return index - 1; });
                break;
            case "ArrowDown":
                e.preventDefault();
                if (candidateIndex >= suggestions.length - 1)
                    return;
                if ((candidateIndex + 2) * itemHeight > listHeight)
                    optionListRef.current.scrollTop += itemHeight;
                setCandidateIndex(function (index) { return index + 1; });
                break;
            case "Enter":
                if (candidateIndex < 0)
                    return;
                handleSelect(suggestions[candidateIndex]);
                setCandidateIndex(-1);
                break;
            case "Escape":
                setOptionListVisible(false);
                setCandidateIndex(-1);
                break;
            default:
                break;
        }
    };
    var sc = scopedClass("autoComplete");
    var classes_list = classNames(sc("list"), (_a = {},
        _a[sc("list", size)] = size,
        _a));
    return (React.createElement("div", { ref: componentRef, className: sc("wrapper") },
        React.createElement(Input, __assign({}, restProps, { size: size, value: value, onChange: handleChange, onKeyDown: handleKeyDown, ref: inputWrapperRef })),
        React.createElement(OptionList, { visible: optionListVisible, clearSuggestions: clearSuggestions, isLoading: isLoading, className: classes_list, suggestions: suggestions, candidateIndex: candidateIndex, handleSelect: handleSelect, ref: optionListRef })));
};
AutoComplete.defaultProps = {
    delay: 300,
};
export default AutoComplete;