@awsui/components-react/autosuggest/controller.js

AWS UI is a collection of [React](https://reactjs.org/) components that help create intuitive, responsive, and accessible user experiences for web applications. It is developed by Amazon Web Services (AWS). This work is available under the terms of the [A

import { __assign, __rest, __spreadArrays } from "tslib";
import { useCallback, useMemo } from 'react';
import { fireNonCancelableEvent } from '../internal/events';
import { filterOptions } from './utils/utils';
import { KeyCode } from '../internal/keycode';
import { generateTestIndexes } from '../internal/components/options-list/utils/test-indexes';
var parentMap = new WeakMap();
export var getParentGroup = function (item) { return parentMap.get(item); };
export var useAutosuggestItems = function (options) {
    if (options === void 0) { options = []; }
    return useMemo(function () {
        return options.reduce(function (acc, option) {
            if ('options' in option) {
                var options_1 = option.options, rest = __rest(option, ["options"]);
                var groupHeader_1 = __assign(__assign({}, rest), { type: 'parent' });
                acc.push(groupHeader_1);
                var groupDisabled_1 = false;
                options_1.forEach(function (child) {
                    acc.push(__assign(__assign({ disabled: groupHeader_1.disabled }, child), { type: 'child' }));
                    parentMap.set(acc[acc.length - 1], option);
                    groupDisabled_1 = groupDisabled_1 || !!child.disabled;
                });
                if (groupDisabled_1) {
                    groupHeader_1.disabled = true;
                }
            }
            else {
                acc.push(__assign({}, option));
            }
            return acc;
        }, []);
    }, [options]);
};
export var useFilteredItems = function (autosuggestItems, value, filteringType, showAll) {
    return useMemo(function () {
        var filteredItems = filteringType === 'auto' && !showAll ? filterOptions(autosuggestItems, value) : __spreadArrays(autosuggestItems);
        if (value) {
            filteredItems.unshift({ value: value, type: 'use-entered' });
        }
        generateTestIndexes(filteredItems, getParentGroup);
        return filteredItems;
    }, [autosuggestItems, value, filteringType, showAll]);
};
export var useSelectOption = function (onChange, closeDropdown) {
    return useCallback(function (option) {
        fireNonCancelableEvent(onChange, { value: option.value || '' });
        closeDropdown();
    }, [onChange, closeDropdown]);
};
export var useSelectVisibleOption = function (filteredItems, selectOption, isInteractive) {
    return useCallback(function (index) {
        var option = filteredItems[index];
        if (option && isInteractive(option)) {
            selectOption(option);
        }
    }, [filteredItems, selectOption, isInteractive]);
};
export var useHighlightVisibleOption = function (filteredItems, setHighlightedIndex, isInteractive) {
    return useCallback(function (index) {
        var option = filteredItems[index];
        if (option && isInteractive(option)) {
            setHighlightedIndex(index);
        }
    }, [filteredItems, setHighlightedIndex, isInteractive]);
};
export var useKeyboardHandler = function (moveHighlight, openDropdown, selectHighlighted, usingMouse, onKeyDown) {
    return useCallback(function (e) {
        switch (e.detail.keyCode) {
            case KeyCode.down: {
                moveHighlight(1);
                openDropdown();
                usingMouse.current = false;
                e.preventDefault();
                break;
            }
            case KeyCode.up: {
                moveHighlight(-1);
                openDropdown();
                usingMouse.current = false;
                e.preventDefault();
                break;
            }
            case KeyCode.enter: {
                selectHighlighted();
                e.preventDefault();
                break;
            }
            default: {
                onKeyDown && onKeyDown(e);
            }
        }
    }, [moveHighlight, selectHighlighted, onKeyDown, usingMouse, openDropdown]);
};