399 lines
10 KiB
JavaScript
399 lines
10 KiB
JavaScript
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function _extends() {
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_extends = Object.assign || function (target) {
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for (var i = 1; i < arguments.length; i++) {
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var source = arguments[i];
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for (var key in source) {
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if (Object.prototype.hasOwnProperty.call(source, key)) {
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target[key] = source[key];
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}
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}
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}
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return target;
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};
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return _extends.apply(this, arguments);
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}
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/**
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* Actions represent the type of change to a location value.
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*
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* @see https://github.com/remix-run/history/tree/main/docs/api-reference.md#action
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*/
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var Action;
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(function (Action) {
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/**
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* A POP indicates a change to an arbitrary index in the history stack, such
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* as a back or forward navigation. It does not describe the direction of the
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* navigation, only that the current index changed.
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*
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* Note: This is the default action for newly created history objects.
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*/
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Action["Pop"] = "POP";
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/**
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* A PUSH indicates a new entry being added to the history stack, such as when
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* a link is clicked and a new page loads. When this happens, all subsequent
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* entries in the stack are lost.
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*/
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Action["Push"] = "PUSH";
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/**
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* A REPLACE indicates the entry at the current index in the history stack
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* being replaced by a new one.
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*/
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Action["Replace"] = "REPLACE";
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})(Action || (Action = {}));
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var readOnly = process.env.NODE_ENV !== "production" ? function (obj) {
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return Object.freeze(obj);
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} : function (obj) {
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return obj;
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};
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function warning(cond, message) {
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if (!cond) {
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// eslint-disable-next-line no-console
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if (typeof console !== 'undefined') console.warn(message);
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try {
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// Welcome to debugging history!
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//
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// This error is thrown as a convenience so you can more easily
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// find the source for a warning that appears in the console by
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// enabling "pause on exceptions" in your JavaScript debugger.
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throw new Error(message); // eslint-disable-next-line no-empty
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} catch (e) {}
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}
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}
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var BeforeUnloadEventType = 'beforeunload';
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var PopStateEventType = 'popstate';
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/**
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* Browser history stores the location in regular URLs. This is the standard for
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* most web apps, but it requires some configuration on the server to ensure you
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* serve the same app at multiple URLs.
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*
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* @see https://github.com/remix-run/history/tree/main/docs/api-reference.md#createbrowserhistory
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*/
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function createBrowserHistory(options) {
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if (options === void 0) {
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options = {};
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}
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var _options = options,
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_options$window = _options.window,
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window = _options$window === void 0 ? document.defaultView : _options$window;
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var globalHistory = window.history;
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function getIndexAndLocation() {
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var _window$location = window.location,
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pathname = _window$location.pathname,
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search = _window$location.search,
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hash = _window$location.hash;
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var state = globalHistory.state || {};
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return [state.idx, readOnly({
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pathname: pathname,
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search: search,
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hash: hash,
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state: state.usr || null,
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key: state.key || 'default'
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})];
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}
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var blockedPopTx = null;
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function handlePop() {
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if (blockedPopTx) {
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blockers.call(blockedPopTx);
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blockedPopTx = null;
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} else {
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var nextAction = Action.Pop;
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var _getIndexAndLocation = getIndexAndLocation(),
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nextIndex = _getIndexAndLocation[0],
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nextLocation = _getIndexAndLocation[1];
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if (blockers.length) {
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if (nextIndex != null) {
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var delta = index - nextIndex;
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if (delta) {
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// Revert the POP
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blockedPopTx = {
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action: nextAction,
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location: nextLocation,
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retry: function retry() {
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go(delta * -1);
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}
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};
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go(delta);
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}
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} else {
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// Trying to POP to a location with no index. We did not create
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// this location, so we can't effectively block the navigation.
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process.env.NODE_ENV !== "production" ? warning(false, // TODO: Write up a doc that explains our blocking strategy in
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// detail and link to it here so people can understand better what
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// is going on and how to avoid it.
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"You are trying to block a POP navigation to a location that was not " + "created by the history library. The block will fail silently in " + "production, but in general you should do all navigation with the " + "history library (instead of using window.history.pushState directly) " + "to avoid this situation.") : void 0;
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}
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} else {
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applyTx(nextAction);
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}
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}
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}
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window.addEventListener(PopStateEventType, handlePop);
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var action = Action.Pop;
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var _getIndexAndLocation2 = getIndexAndLocation(),
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index = _getIndexAndLocation2[0],
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location = _getIndexAndLocation2[1];
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var listeners = createEvents();
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var blockers = createEvents();
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if (index == null) {
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index = 0;
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globalHistory.replaceState(_extends({}, globalHistory.state, {
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idx: index
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}), '');
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}
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function createHref(to) {
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return typeof to === 'string' ? to : createPath(to);
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} // state defaults to `null` because `window.history.state` does
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function getNextLocation(to, state) {
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if (state === void 0) {
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state = null;
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}
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return readOnly(_extends({
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pathname: location.pathname,
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hash: '',
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search: ''
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}, typeof to === 'string' ? parsePath(to) : to, {
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state: state,
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key: createKey()
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}));
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}
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function getHistoryStateAndUrl(nextLocation, index) {
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return [{
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usr: nextLocation.state,
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key: nextLocation.key,
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idx: index
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}, createHref(nextLocation)];
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}
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function allowTx(action, location, retry) {
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return !blockers.length || (blockers.call({
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action: action,
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location: location,
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retry: retry
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}), false);
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}
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function applyTx(nextAction) {
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action = nextAction;
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var _getIndexAndLocation3 = getIndexAndLocation();
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index = _getIndexAndLocation3[0];
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location = _getIndexAndLocation3[1];
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listeners.call({
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action: action,
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location: location
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});
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}
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function push(to, state) {
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var nextAction = Action.Push;
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var nextLocation = getNextLocation(to, state);
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function retry() {
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push(to, state);
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}
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if (allowTx(nextAction, nextLocation, retry)) {
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var _getHistoryStateAndUr = getHistoryStateAndUrl(nextLocation, index + 1),
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historyState = _getHistoryStateAndUr[0],
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url = _getHistoryStateAndUr[1]; // TODO: Support forced reloading
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// try...catch because iOS limits us to 100 pushState calls :/
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try {
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globalHistory.pushState(historyState, '', url);
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} catch (error) {
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// They are going to lose state here, but there is no real
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// way to warn them about it since the page will refresh...
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window.location.assign(url);
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}
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applyTx(nextAction);
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}
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}
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function replace(to, state) {
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var nextAction = Action.Replace;
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var nextLocation = getNextLocation(to, state);
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function retry() {
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replace(to, state);
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}
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if (allowTx(nextAction, nextLocation, retry)) {
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var _getHistoryStateAndUr2 = getHistoryStateAndUrl(nextLocation, index),
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historyState = _getHistoryStateAndUr2[0],
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url = _getHistoryStateAndUr2[1]; // TODO: Support forced reloading
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globalHistory.replaceState(historyState, '', url);
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applyTx(nextAction);
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}
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}
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function go(delta) {
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globalHistory.go(delta);
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}
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var history = {
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get action() {
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return action;
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},
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get location() {
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return location;
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},
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createHref: createHref,
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push: push,
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replace: replace,
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go: go,
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back: function back() {
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go(-1);
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},
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forward: function forward() {
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go(1);
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},
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listen: function listen(listener) {
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return listeners.push(listener);
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},
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block: function block(blocker) {
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var unblock = blockers.push(blocker);
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if (blockers.length === 1) {
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window.addEventListener(BeforeUnloadEventType, promptBeforeUnload);
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}
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return function () {
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unblock(); // Remove the beforeunload listener so the document may
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// still be salvageable in the pagehide event.
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// See https://html.spec.whatwg.org/#unloading-documents
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if (!blockers.length) {
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window.removeEventListener(BeforeUnloadEventType, promptBeforeUnload);
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}
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};
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}
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};
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return history;
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}
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function promptBeforeUnload(event) {
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// Cancel the event.
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event.preventDefault(); // Chrome (and legacy IE) requires returnValue to be set.
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event.returnValue = '';
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}
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function createEvents() {
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var handlers = [];
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return {
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get length() {
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return handlers.length;
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},
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push: function push(fn) {
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handlers.push(fn);
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return function () {
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handlers = handlers.filter(function (handler) {
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return handler !== fn;
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});
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};
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},
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call: function call(arg) {
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handlers.forEach(function (fn) {
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return fn && fn(arg);
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});
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}
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};
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}
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function createKey() {
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return Math.random().toString(36).substr(2, 8);
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}
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/**
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* Creates a string URL path from the given pathname, search, and hash components.
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*
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* @see https://github.com/remix-run/history/tree/main/docs/api-reference.md#createpath
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*/
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function createPath(_ref) {
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var _ref$pathname = _ref.pathname,
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pathname = _ref$pathname === void 0 ? '/' : _ref$pathname,
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_ref$search = _ref.search,
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search = _ref$search === void 0 ? '' : _ref$search,
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_ref$hash = _ref.hash,
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hash = _ref$hash === void 0 ? '' : _ref$hash;
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if (search && search !== '?') pathname += search.charAt(0) === '?' ? search : '?' + search;
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if (hash && hash !== '#') pathname += hash.charAt(0) === '#' ? hash : '#' + hash;
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return pathname;
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}
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/**
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* Parses a string URL path into its separate pathname, search, and hash components.
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*
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* @see https://github.com/remix-run/history/tree/main/docs/api-reference.md#parsepath
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*/
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function parsePath(path) {
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var parsedPath = {};
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if (path) {
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var hashIndex = path.indexOf('#');
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if (hashIndex >= 0) {
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parsedPath.hash = path.substr(hashIndex);
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path = path.substr(0, hashIndex);
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}
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var searchIndex = path.indexOf('?');
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if (searchIndex >= 0) {
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parsedPath.search = path.substr(searchIndex);
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path = path.substr(0, searchIndex);
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}
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if (path) {
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parsedPath.pathname = path;
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}
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}
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return parsedPath;
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}
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/**
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* Create a default instance for the current document.
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*/
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var browser = createBrowserHistory();
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export { browser as default };
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//# sourceMappingURL=browser.js.map
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