StackRouter.js
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'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
var _pathToRegexp = require('path-to-regexp');
var _pathToRegexp2 = _interopRequireDefault(_pathToRegexp);
var _NavigationActions = require('../NavigationActions');
var _NavigationActions2 = _interopRequireDefault(_NavigationActions);
var _createConfigGetter = require('./createConfigGetter');
var _createConfigGetter2 = _interopRequireDefault(_createConfigGetter);
var _getScreenForRouteName = require('./getScreenForRouteName');
var _getScreenForRouteName2 = _interopRequireDefault(_getScreenForRouteName);
var _StateUtils = require('../StateUtils');
var _StateUtils2 = _interopRequireDefault(_StateUtils);
var _validateRouteConfigMap = require('./validateRouteConfigMap');
var _validateRouteConfigMap2 = _interopRequireDefault(_validateRouteConfigMap);
var _getScreenConfigDeprecated = require('./getScreenConfigDeprecated');
var _getScreenConfigDeprecated2 = _interopRequireDefault(_getScreenConfigDeprecated);
var _invariant = require('../utils/invariant');
var _invariant2 = _interopRequireDefault(_invariant);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
var uniqueBaseId = 'id-' + Date.now();
var uuidCount = 0;
function _getUuid() {
return uniqueBaseId + '-' + uuidCount++;
}
function isEmpty(obj) {
if (!obj) return true;
for (var key in obj) {
return false;
}
return true;
}
exports.default = function (routeConfigs) {
var stackConfig = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
// Fail fast on invalid route definitions
(0, _validateRouteConfigMap2.default)(routeConfigs);
var childRouters = {};
var routeNames = Object.keys(routeConfigs);
// Loop through routes and find child routers
routeNames.forEach(function (routeName) {
var screen = (0, _getScreenForRouteName2.default)(routeConfigs, routeName);
if (screen && screen.router) {
// If it has a router it's a navigator.
childRouters[routeName] = screen.router;
} else {
// If it doesn't have router it's an ordinary React component.
childRouters[routeName] = null;
}
});
var initialRouteParams = stackConfig.initialRouteParams;
var initialRouteName = stackConfig.initialRouteName || routeNames[0];
var initialChildRouter = childRouters[initialRouteName];
var paths = stackConfig.paths || {};
// Build paths for each route
routeNames.forEach(function (routeName) {
var pathPattern = paths[routeName] || routeConfigs[routeName].path;
var matchExact = !!pathPattern && !childRouters[routeName];
if (typeof pathPattern !== 'string') {
pathPattern = routeName;
}
var keys = [];
var re = (0, _pathToRegexp2.default)(pathPattern, keys);
if (!matchExact) {
var wildcardRe = (0, _pathToRegexp2.default)(pathPattern + '/*', keys);
re = new RegExp('(?:' + re.source + ')|(?:' + wildcardRe.source + ')');
}
/* $FlowFixMe */
paths[routeName] = { re: re, keys: keys, toPath: _pathToRegexp2.default.compile(pathPattern) };
});
return {
getComponentForState: function getComponentForState(state) {
var activeChildRoute = state.routes[state.index];
var routeName = activeChildRoute.routeName;
if (childRouters[routeName]) {
return childRouters[routeName].getComponentForState(activeChildRoute);
}
return (0, _getScreenForRouteName2.default)(routeConfigs, routeName);
},
getComponentForRouteName: function getComponentForRouteName(routeName) {
return (0, _getScreenForRouteName2.default)(routeConfigs, routeName);
},
getStateForAction: function getStateForAction(action, state) {
// Set up the initial state if needed
if (!state) {
var route = {};
if (action.type === _NavigationActions2.default.NAVIGATE && childRouters[action.routeName] !== undefined) {
return {
index: 0,
routes: [_extends({}, action, {
type: undefined,
key: 'Init-' + _getUuid()
})]
};
}
if (initialChildRouter) {
route = initialChildRouter.getStateForAction(_NavigationActions2.default.navigate({
routeName: initialRouteName,
params: initialRouteParams
}));
}
var params = (route.params || action.params || initialRouteParams) && _extends({}, route.params || {}, action.params || {}, initialRouteParams || {});
route = _extends({}, route, {
routeName: initialRouteName,
key: 'Init-' + _getUuid()
}, params ? { params: params } : {});
// eslint-disable-next-line no-param-reassign
state = {
index: 0,
routes: [route]
};
}
// Check if a child scene wants to handle the action as long as it is not a reset to the root stack
if (action.type !== _NavigationActions2.default.RESET || action.key !== null) {
var keyIndex = action.key ? _StateUtils2.default.indexOf(state, action.key) : -1;
var childIndex = keyIndex >= 0 ? keyIndex : state.index;
var childRoute = state.routes[childIndex];
(0, _invariant2.default)(childRoute, 'StateUtils erroneously thought index ' + childIndex + ' exists');
var childRouter = childRouters[childRoute.routeName];
if (childRouter) {
var _route = childRouter.getStateForAction(action, childRoute);
if (_route === null) {
return state;
}
if (_route && _route !== childRoute) {
return _StateUtils2.default.replaceAt(state, childRoute.key, _route);
}
}
}
// Handle explicit push navigation action
if (action.type === _NavigationActions2.default.NAVIGATE && childRouters[action.routeName] !== undefined) {
var _childRouter = childRouters[action.routeName];
var _route2 = void 0;
if (_childRouter) {
var childAction = action.action || _NavigationActions2.default.init({ params: action.params });
_route2 = _extends({
params: action.params
}, _childRouter.getStateForAction(childAction), {
key: _getUuid(),
routeName: action.routeName
});
} else {
_route2 = {
params: action.params,
key: _getUuid(),
routeName: action.routeName
};
}
return _StateUtils2.default.push(state, _route2);
}
// Handle navigation to other child routers that are not yet pushed
if (action.type === _NavigationActions2.default.NAVIGATE) {
var childRouterNames = Object.keys(childRouters);
for (var i = 0; i < childRouterNames.length; i++) {
var childRouterName = childRouterNames[i];
var _childRouter2 = childRouters[childRouterName];
if (_childRouter2) {
// For each child router, start with a blank state
var initChildRoute = _childRouter2.getStateForAction(_NavigationActions2.default.init());
// Then check to see if the router handles our navigate action
var navigatedChildRoute = _childRouter2.getStateForAction(action, initChildRoute);
var routeToPush = null;
if (navigatedChildRoute === null) {
// Push the route if the router has 'handled' the action and returned null
routeToPush = initChildRoute;
} else if (navigatedChildRoute !== initChildRoute) {
// Push the route if the state has changed in response to this navigation
routeToPush = navigatedChildRoute;
}
if (routeToPush) {
return _StateUtils2.default.push(state, _extends({}, routeToPush, {
key: _getUuid(),
routeName: childRouterName
}));
}
}
}
}
if (action.type === _NavigationActions2.default.SET_PARAMS) {
var key = action.key;
var lastRoute = state.routes.find(function (route) {
return route.key === key;
});
if (lastRoute) {
var _params = _extends({}, lastRoute.params, action.params);
var routes = [].concat(_toConsumableArray(state.routes));
routes[state.routes.indexOf(lastRoute)] = _extends({}, lastRoute, {
params: _params
});
return _extends({}, state, {
routes: routes
});
}
}
if (action.type === _NavigationActions2.default.RESET) {
var resetAction = action;
return _extends({}, state, {
routes: resetAction.actions.map(function (childAction) {
var router = childRouters[childAction.routeName];
if (router) {
return _extends({}, childAction, router.getStateForAction(childAction), {
routeName: childAction.routeName,
key: _getUuid()
});
}
var route = _extends({}, childAction, {
key: _getUuid()
});
delete route.type;
return route;
}),
index: action.index
});
}
if (action.type === _NavigationActions2.default.BACK) {
var _key = action.key;
var backRouteIndex = null;
if (_key) {
var backRoute = state.routes.find(function (route) {
return route.key === _key;
});
/* $FlowFixMe */
backRouteIndex = state.routes.indexOf(backRoute);
}
if (backRouteIndex == null) {
return _StateUtils2.default.pop(state);
}
if (backRouteIndex > 0) {
return _extends({}, state, {
routes: state.routes.slice(0, backRouteIndex),
index: backRouteIndex - 1
});
}
}
return state;
},
getPathAndParamsForState: function getPathAndParamsForState(state) {
var route = state.routes[state.index];
var routeName = route.routeName;
var screen = (0, _getScreenForRouteName2.default)(routeConfigs, routeName);
/* $FlowFixMe */
var subPath = paths[routeName].toPath(route.params);
var path = subPath;
var params = route.params;
if (screen && screen.router) {
// $FlowFixMe there's no way type the specific shape of the nav state
var stateRoute = route;
// If it has a router it's a navigator.
// If it doesn't have router it's an ordinary React component.
var child = screen.router.getPathAndParamsForState(stateRoute);
path = subPath ? subPath + '/' + child.path : child.path;
params = child.params ? _extends({}, params, child.params) : params;
}
return {
path: path,
params: params
};
},
getActionForPathAndParams: function getActionForPathAndParams(pathToResolve, inputParams) {
// If the path is empty (null or empty string)
// just return the initial route action
if (!pathToResolve) {
return _NavigationActions2.default.navigate({
routeName: initialRouteName
});
}
var _pathToResolve$split = pathToResolve.split('?'),
_pathToResolve$split2 = _slicedToArray(_pathToResolve$split, 2),
pathNameToResolve = _pathToResolve$split2[0],
queryString = _pathToResolve$split2[1];
// Attempt to match `pathNameToResolve` with a route in this router's
// routeConfigs
var matchedRouteName = void 0;
var pathMatch = void 0;
var pathMatchKeys = void 0;
// eslint-disable-next-line no-restricted-syntax
var _iteratorNormalCompletion = true;
var _didIteratorError = false;
var _iteratorError = undefined;
try {
for (var _iterator = Object.entries(paths)[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
var _step$value = _slicedToArray(_step.value, 2),
routeName = _step$value[0],
path = _step$value[1];
/* $FlowFixMe */
var re = path.re,
keys = path.keys;
pathMatch = re.exec(pathNameToResolve);
if (pathMatch && pathMatch.length) {
pathMatchKeys = keys;
matchedRouteName = routeName;
break;
}
}
// We didn't match -- return null
} catch (err) {
_didIteratorError = true;
_iteratorError = err;
} finally {
try {
if (!_iteratorNormalCompletion && _iterator.return) {
_iterator.return();
}
} finally {
if (_didIteratorError) {
throw _iteratorError;
}
}
}
if (!matchedRouteName) {
return null;
}
// Determine nested actions:
// If our matched route for this router is a child router,
// get the action for the path AFTER the matched path for this
// router
var nestedAction = void 0;
var nestedQueryString = queryString ? '?' + queryString : '';
if (childRouters[matchedRouteName]) {
nestedAction = childRouters[matchedRouteName].getActionForPathAndParams(
/* $FlowFixMe */
pathMatch.slice(pathMatchKeys.length).join('/') + nestedQueryString);
}
// reduce the items of the query string. any query params may
// be overridden by path params
var queryParams = !isEmpty(inputParams) ? inputParams : (queryString || '').split('&').reduce(function (result, item) {
if (item !== '') {
var nextResult = result || {};
var _item$split = item.split('='),
_item$split2 = _slicedToArray(_item$split, 2),
key = _item$split2[0],
value = _item$split2[1];
nextResult[key] = value;
return nextResult;
}
return result;
}, null);
// reduce the matched pieces of the path into the params
// of the route. `params` is null if there are no params.
/* $FlowFixMe */
var params = pathMatch.slice(1).reduce(function (result, matchResult, i) {
var key = pathMatchKeys[i];
if (key.asterisk || !key) {
return result;
}
var nextResult = result || {};
var paramName = key.name;
nextResult[paramName] = matchResult;
return nextResult;
}, queryParams);
return _NavigationActions2.default.navigate(_extends({
routeName: matchedRouteName
}, params ? { params: params } : {}, nestedAction ? { action: nestedAction } : {}));
},
getScreenOptions: (0, _createConfigGetter2.default)(routeConfigs, stackConfig.navigationOptions),
getScreenConfig: _getScreenConfigDeprecated2.default
};
};