Janne Mareike Koschinski
53 lines
1.8 KiB
TypeScript
53 lines
1.8 KiB
TypeScript
/*
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Copyright 2022 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { isEqual } from "lodash";
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import React, { ComponentProps, PropsWithChildren, Reducer, useReducer } from "react";
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import { AuthHeaderContext } from "./AuthHeaderContext";
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import { AuthHeaderModifier } from "./AuthHeaderModifier";
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export enum AuthHeaderActionType {
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Add,
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Remove
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}
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interface AuthHeaderAction {
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type: AuthHeaderActionType;
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value: ComponentProps<typeof AuthHeaderModifier>;
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}
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export type AuthHeaderReducer = Reducer<ComponentProps<typeof AuthHeaderModifier>[], AuthHeaderAction>;
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export function AuthHeaderProvider({ children }: PropsWithChildren<{}>) {
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const [state, dispatch] = useReducer<AuthHeaderReducer>(
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(state: ComponentProps<typeof AuthHeaderModifier>[], action: AuthHeaderAction) => {
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switch (action.type) {
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case AuthHeaderActionType.Add:
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return [action.value, ...state];
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case AuthHeaderActionType.Remove:
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return (state.length && isEqual(state[0], action.value)) ? state.slice(1) : state;
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}
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},
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[] as ComponentProps<typeof AuthHeaderModifier>[],
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);
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return (
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<AuthHeaderContext.Provider value={{ state, dispatch }}>
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{ children }
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</AuthHeaderContext.Provider>
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);
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}
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