@curi/react-dom/dist/curi-react-dom.umd.js

(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('react')) :
    typeof define === 'function' && define.amd ? define(['exports', 'react'], factory) :
    (global = global || self, factory(global.CuriReactDOM = {}, global.React));
}(this, function (exports, React) { 'use strict';

    React = React && React.hasOwnProperty('default') ? React['default'] : React;

    function find(name, children) {
        return children.some(function (node) {
            if (node.name === name) {
                return true;
            }
            else if (node.children) {
                return find(name, node.children);
            }
            return false;
        });
    }
    function active(route, response, options) {
        if (options === void 0) { options = {}; }
        if (response.name !== route.name &&
            (!options.partial || !find(response.name, route.children))) {
            return false;
        }
        var keys = route.keys;
        if (keys.length) {
            if (!options.params) {
                return false;
            }
            for (var r = 0, length = keys.length; r < length; r++) {
                var key = keys[r];
                var param = options.params[key];
                if (!param || param !== response.params[key]) {
                    return false;
                }
            }
        }
        if (options.components) {
            return options.components(response.location);
        }
        return true;
    }

    var key = {
        response: null,
        navigation: null
    };
    var responseContext = React.createContext(key);
    var ResponseProvider = responseContext.Provider, ResponseConsumer = responseContext.Consumer;
    var routerContext = React.createContext(null);
    var RouterProvider = routerContext.Provider, RouterConsumer = routerContext.Consumer;

    function createRouterComponent(router) {
        function initialState() {
            return router.current();
        }
        return function Router(props) {
            var _a = React.useState(initialState), response = _a[0], setResponse = _a[1];
            React.useEffect(function () {
                var removed = false;
                var stop = router.observe(function (_a) {
                    var response = _a.response, navigation = _a.navigation;
                    if (!removed) {
                        setResponse({ response: response, navigation: navigation });
                    }
                }, { initial: false });
                return function () {
                    removed = true;
                    stop();
                };
            }, []);
            return (React.createElement(RouterProvider, { value: router },
                React.createElement(ResponseProvider, { value: response }, props.children)));
        };
    }

    function useRouter() {
        return React.useContext(routerContext);
    }

    function useResponse() {
        return React.useContext(responseContext);
    }

    function useActive(props) {
        var router = useRouter();
        var response = useResponse().response;
        var route = router.route(props.name);
        if (!route) {
            return false;
        }
        return active(route, response, {
            params: props.params,
            partial: props.partial,
            components: props.components
        });
    }

    function useURL(props) {
        var router = useRouter();
        return router.url(props);
    }

    function useNavigating() {
        var router = useRouter();
        var _a = React.useState(undefined), cancel = _a[0], setCancel = _a[1];
        React.useEffect(function () {
            var removed = false;
            var stop = router.cancel(function (callback) {
                if (!removed) {
                    setCancel(function () { return callback; });
                }
            });
            return function () {
                removed = true;
                stop();
            };
        }, []);
        return cancel;
    }

    function defaultCanNavigate() {
        return true;
    }
    function useNavigationHandler(props) {
        var url = props.url, onNav = props.onNav, method = props.method, target = props.target, state = props.state, _a = props.canNavigate, canNavigate = _a === void 0 ? defaultCanNavigate : _a;
        var router = useRouter();
        var eventHandler = React.useCallback(function eventHandler(event) {
            if (onNav) {
                onNav(event);
            }
            if (canNavigate(event, target)) {
                event.preventDefault();
                router.navigate({ url: url, state: state, method: method });
            }
        }, [url, method, state, onNav, target]);
        return {
            url: url,
            eventHandler: eventHandler
        };
    }
    function useStatefulNavigationHandler(props) {
        var url = props.url, onNav = props.onNav, method = props.method, target = props.target, state = props.state, _a = props.canNavigate, canNavigate = _a === void 0 ? defaultCanNavigate : _a;
        var router = useRouter();
        var removeCallbacks = React.useRef(undefined);
        var _b = React.useState(false), navigating = _b[0], setNavigating = _b[1];
        React.useEffect(function () {
            return function () {
                if (removeCallbacks.current) {
                    removeCallbacks.current();
                }
            };
        }, []);
        var eventHandler = React.useCallback(function eventHandler(event) {
            if (onNav) {
                onNav(event);
            }
            if (canNavigate(event, target)) {
                event.preventDefault();
                var done = function () {
                    removeCallbacks.current = undefined;
                    setNavigating(false);
                };
                setNavigating(true);
                removeCallbacks.current = router.navigate({
                    url: url,
                    state: state,
                    method: method,
                    cancelled: done,
                    finished: done
                });
            }
        }, [url, method, state, onNav, target]);
        return {
            url: url,
            eventHandler: eventHandler,
            navigating: navigating
        };
    }

    function useConfirm(fn) {
        var router = useRouter();
        React.useEffect(function () {
            router.history.confirm(fn);
            return function () {
                router.history.confirm();
            };
        }, [fn]);
    }

    function useNavigationFocus(ref, props) {
        if (props === void 0) { props = {}; }
        // The response isn't actually used, but the app should only
        // re-focus when the response changes. The preserve and preventScroll
        // values are used, but not used in the comparison array because
        // changing these values would steal the app's focus even though
        // the location hasn't changed.
        var response = useResponse().response;
        var preserve = props.preserve, _a = props.preventScroll, preventScroll = _a === void 0 ? false : _a;
        React.useEffect(function () {
            var ele = ref.current;
            if (ele === null) {
                {
                    console.warn("There is no element to focus. Did you forget to add the ref to an element?");
                }
                return;
            }
            if (preserve && ele.contains(document.activeElement)) {
                return;
            }
            {
                if (!ele.hasAttribute("tabIndex") && ele.tabIndex === -1) {
                    console.warn('The component that is passed the ref must have a "tabIndex" prop or be focusable by default in order to be focused. ' +
                        "Otherwise, the document's <body> will be focused instead.");
                }
            }
            // @ts-ignore
            ele.focus({ preventScroll: preventScroll });
        }, [response]);
    }

    /*! *****************************************************************************
    Copyright (c) Microsoft Corporation. All rights reserved.
    Licensed under the Apache License, Version 2.0 (the "License"); you may not use
    this file except in compliance with the License. You may obtain a copy of the
    License at http://www.apache.org/licenses/LICENSE-2.0

    THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
    WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
    MERCHANTABLITY OR NON-INFRINGEMENT.

    See the Apache Version 2.0 License for specific language governing permissions
    and limitations under the License.
    ***************************************************************************** */

    var __assign = function() {
        __assign = Object.assign || function __assign(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);
    };

    function __rest(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)
                t[p[i]] = s[p[i]];
        return t;
    }

    function canNavigate(event, target) {
        return (!event.defaultPrevented &&
            !target &&
            event.button === 0 &&
            !(event.metaKey || event.altKey || event.ctrlKey || event.shiftKey));
    }

    var Link = React.forwardRef(function (props, ref) {
        var _a;
        var 
        // url
        name = props.name, params = props.params, query = props.query, hash = props.hash, 
        // navigation
        state = props.state, onNav = props.onNav, method = props.method, 
        // props
        children = props.children, Anchor = (_a = props.anchor, _a === void 0 ? "a" : _a), rest = __rest(props, ["name", "params", "query", "hash", "state", "onNav", "method", "children", "anchor"]);
        var url = useURL({ name: name, params: params, query: query, hash: hash });
        var eventHandler = useNavigationHandler({
            url: url,
            state: state,
            onNav: onNav,
            method: method,
            canNavigate: canNavigate,
            target: rest.target
        }).eventHandler;
        return (React.createElement(Anchor, __assign({}, rest, { onClick: eventHandler, href: url, ref: ref }), children));
    });
    var AsyncLink = React.forwardRef(function (props, ref) {
        var _a, _b;
        var 
        // url
        name = props.name, params = props.params, query = props.query, hash = props.hash, 
        // navigation
        state = props.state, onNav = props.onNav, method = props.method, 
        // props
        children = props.children, Anchor = (_a = props.anchor, _a === void 0 ? "a" : _a), rest = __rest(props, ["name", "params", "query", "hash", "state", "onNav", "method", "children", "anchor"]);
        var url = useURL({ name: name, params: params, query: query, hash: hash });
        var eventHandler = (_b = useStatefulNavigationHandler({ url: url, state: state, onNav: onNav, method: method, canNavigate: canNavigate, target: rest.target }), _b.eventHandler), navigating = _b.navigating;
        return (React.createElement(Anchor, __assign({}, rest, { onClick: eventHandler, href: url, ref: ref }), children(navigating)));
    });

    exports.AsyncLink = AsyncLink;
    exports.Link = Link;
    exports.ResponseConsumer = ResponseConsumer;
    exports.RouterConsumer = RouterConsumer;
    exports.createRouterComponent = createRouterComponent;
    exports.useActive = useActive;
    exports.useConfirm = useConfirm;
    exports.useNavigating = useNavigating;
    exports.useNavigationFocus = useNavigationFocus;
    exports.useNavigationHandler = useNavigationHandler;
    exports.useResponse = useResponse;
    exports.useRouter = useRouter;
    exports.useStatefulNavigationHandler = useStatefulNavigationHandler;
    exports.useURL = useURL;

    Object.defineProperty(exports, '__esModule', { value: true });

}));