Files
dbgate/web/src/utility/globalState.js
2020-01-05 19:55:04 +01:00

27 lines
875 B
JavaScript

import React from 'react';
function createGlobalState(defaultValue) {
const Context = React.createContext();
function Provider({ children }) {
const [currentvalue, setCurrentValue] = React.useState(defaultValue);
return <Context.Provider value={[currentvalue, setCurrentValue]}>{children}</Context.Provider>;
}
function useValue() {
return React.useContext(Context)[0];
}
function useSetValue() {
return React.useContext(Context)[1];
}
return [Provider, useValue, useSetValue];
}
const [CurrentWidgetProvider, useCurrentWidget, useSetCurrentWidget] = createGlobalState('database');
export { CurrentWidgetProvider, useCurrentWidget, useSetCurrentWidget };
const [CurrentDatabaseProvider, useCurrentDatabase, useSetCurrentDatabase] = createGlobalState(null);
export { CurrentDatabaseProvider, useCurrentDatabase, useSetCurrentDatabase };