jiti-meet/react/features/base/flags/functions.js

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// @flow
import { getAppProp } from '../app';
import { toState } from '../redux';
/**
* Gets the value of a specific feature flag.
*
* @param {Function|Object} stateful - The redux store or {@code getState}
* function.
* @param {string} flag - The name of the React {@code Component} prop of
* the currently mounted {@code App} to get.
* @param {*} defaultValue - A default value for the flag, in case it's not defined.
* @returns {*} The value of the specified React {@code Compoennt} prop of the
* currently mounted {@code App}.
*/
export function getFeatureFlag(stateful: Function | Object, flag: string, defaultValue: any) {
const state = toState(stateful)['features/base/flags'];
if (state) {
const value = state[flag];
if (typeof value !== 'undefined') {
return value;
}
}
// Maybe the value hasn't made it to the redux store yet, check the app props.
const flags = getAppProp(stateful, 'flags') || {};
return flags[flag] || defaultValue;
}