GT2/Ejectable/node_modules/@react-navigation/routers/lib/module/BaseRouter.js

61 lines
1.6 KiB
JavaScript

import { nanoid } from 'nanoid/non-secure';
/**
* Base router object that can be used when writing custom routers.
* This provides few helper methods to handle common actions such as `RESET`.
*/
const BaseRouter = {
getStateForAction(state, action) {
switch (action.type) {
case 'SET_PARAMS':
{
const index = action.source ? state.routes.findIndex(r => r.key === action.source) : state.index;
if (index === -1) {
return null;
}
return { ...state,
routes: state.routes.map((r, i) => i === index ? { ...r,
params: { ...r.params,
...action.payload.params
}
} : r)
};
}
case 'RESET':
{
const nextState = action.payload;
if (nextState.routes.length === 0 || nextState.routes.some(route => !state.routeNames.includes(route.name))) {
return null;
}
if (nextState.stale === false) {
if (state.routeNames.length !== nextState.routeNames.length || nextState.routeNames.some(name => !state.routeNames.includes(name))) {
return null;
}
return { ...nextState,
routes: nextState.routes.map(route => route.key ? route : { ...route,
key: "".concat(route.name, "-").concat(nanoid())
})
};
}
return nextState;
}
default:
return null;
}
},
shouldActionChangeFocus(action) {
return action.type === 'NAVIGATE';
}
};
export default BaseRouter;
//# sourceMappingURL=BaseRouter.js.map