64 lines
1.9 KiB
JavaScript
64 lines
1.9 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @format
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* @flow
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*/
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'use strict';
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type DevToolsPluginConnection = {
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isAppActive: () => boolean,
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host: string,
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port: number,
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};
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type DevToolsPlugin = {
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connectToDevTools: (connection: DevToolsPluginConnection) => void,
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};
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let register = function() {
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// noop
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};
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if (__DEV__) {
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const AppState = require('AppState');
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const WebSocket = require('WebSocket');
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/* $FlowFixMe(>=0.54.0 site=react_native_oss) This comment suppresses an
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* error found when Flow v0.54 was deployed. To see the error delete this
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* comment and run Flow. */
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const reactDevTools = require('react-devtools-core');
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const getDevServer = require('getDevServer');
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// Initialize dev tools only if the native module for WebSocket is available
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if (WebSocket.isAvailable) {
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// Don't steal the DevTools from currently active app.
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// Note: if you add any AppState subscriptions to this file,
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// you will also need to guard against `AppState.isAvailable`,
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// or the code will throw for bundles that don't have it.
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const isAppActive = () => AppState.currentState !== 'background';
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// Get hostname from development server (packager)
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const devServer = getDevServer();
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const host = devServer.bundleLoadedFromServer
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? devServer.url.replace(/https?:\/\//, '').split(':')[0]
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: 'localhost';
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reactDevTools.connectToDevTools({
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isAppActive,
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host,
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// Read the optional global variable for backward compatibility.
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// It was added in https://github.com/facebook/react-native/commit/bf2b435322e89d0aeee8792b1c6e04656c2719a0.
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port: window.__REACT_DEVTOOLS_PORT__,
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resolveRNStyle: require('flattenStyle'),
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});
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}
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}
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module.exports = {
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register,
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};
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