@blueprintjs/core
Version:
Core styles & components
56 lines • 2.35 kB
JavaScript
/*
* Copyright 2021 Palantir Technologies, Inc. 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
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import * as React from "react";
import { HotkeysDialog2 } from "../../components/hotkeys/hotkeysDialog2";
const initialHotkeysState = { hotkeys: [], isDialogOpen: false };
const noOpDispatch = () => null;
// we can remove this guard once Blueprint depends on React 16
export const HotkeysContext = React.createContext?.([
initialHotkeysState,
noOpDispatch,
]);
const hotkeysReducer = (state, action) => {
switch (action.type) {
case "ADD_HOTKEYS":
return {
...state,
hotkeys: [...state.hotkeys, ...action.payload],
};
case "REMOVE_HOTKEYS":
return {
...state,
hotkeys: state.hotkeys.filter(key => action.payload.indexOf(key) === -1),
};
case "OPEN_DIALOG":
return { ...state, isDialogOpen: true };
case "CLOSE_DIALOG":
return { ...state, isDialogOpen: false };
default:
return state;
}
};
/**
* Hotkeys context provider, necessary for the `useHotkeys` hook.
*/
export const HotkeysProvider = ({ children, dialogProps, renderDialog }) => {
const [state, dispatch] = React.useReducer(hotkeysReducer, initialHotkeysState);
const handleDialogClose = React.useCallback(() => dispatch({ type: "CLOSE_DIALOG" }), []);
const dialog = renderDialog?.(state, { handleDialogClose }) ?? (React.createElement(HotkeysDialog2, Object.assign({}, dialogProps, { isOpen: state.isDialogOpen, hotkeys: state.hotkeys, onClose: handleDialogClose })));
return (React.createElement(HotkeysContext.Provider, { value: [state, dispatch] },
children,
dialog));
};
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