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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | 16x 16x 16x 2x 2x 1x 1x 15x 16x 16x 1x 15x 15x 10x 5x | import { compose } from 'redux';
import get from './utils/get';
/**
* compose function for redux.
* Detects the environment using config.enableDevtools,
* if that's not provided by user, used process.env.NODE_ENV.
*
* @param {Object} config - configuration object
* @param {Function} config.enableDevTools - Enable redux devTools in the browser if it returns true
* @param {Function} config.composeRedux - Use a custom compose function for redux, it has existing compose function as the argument
* @returns {Function} composer - compose function fed to redux
*/
function composeEnhancers(config = {}) {
const devCompose =
typeof window === 'object' &&
window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ &&
window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__(config.devToolOptions || {});
/* if devtools should be enabled, use devTools if available, else use default compose function */
const composer = shouldEnableDevTools(config)
? devCompose || compose
: compose;
/* if use wants to override above composer function, use that */
if (!!config && !!config.composeRedux) {
const finalComposer = config.composeRedux(composer);
if (typeof finalComposer === 'function') {
return finalComposer;
}
console.warn(
`composeRedux() should return function (compose), provided: ${config.composeRedux}`
);
}
return composer;
}
function shouldEnableDevTools(config) {
const enableToolsFn = get(config, 'enableDevTools');
/* if user provides enableDevTools function use that */
if (enableToolsFn && typeof enableToolsFn !== 'function') {
console.warn(
`config.enableDevTools should be a function returning true or false you
have provided ${typeof enableToolsFn}: ${enableToolsFn}`
);
} else if (enableToolsFn) return enableToolsFn();
/* else, check for the development environment to enable dev tools */
if (
typeof process === 'object' &&
get(process, 'env.NODE_ENV') !== 'production'
) {
return true;
}
/* else, return false */
return false;
}
export default composeEnhancers;
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