| 1 | /** |
| 2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
| 3 | * |
| 4 | * This source code is licensed under the MIT license found in the |
| 5 | * LICENSE file in the root directory of this source tree. |
| 6 | * |
| 7 | * @noflow |
| 8 | */ |
| 9 | |
| 10 | import * as React from 'react'; |
| 11 | import {createRoot} from 'react-dom/client'; |
| 12 | import { |
| 13 | activate as activateBackend, |
| 14 | createBridge as createBackendBridge, |
| 15 | initialize as initializeBackend, |
| 16 | } from 'react-devtools-inline/backend'; |
| 17 | import { |
| 18 | createBridge as createFrontendBridge, |
| 19 | createStore, |
| 20 | initialize as createDevTools, |
| 21 | } from 'react-devtools-inline/frontend'; |
| 22 | import {__DEBUG__} from 'react-devtools-shared/src/constants'; |
| 23 | |
| 24 | function inject(contentDocument, sourcePath, callback) { |
| 25 | const script = contentDocument.createElement('script'); |
| 26 | script.onload = callback; |
| 27 | script.src = sourcePath; |
| 28 | |
| 29 | ((contentDocument.body: any): HTMLBodyElement).appendChild(script); |
| 30 | } |
| 31 | |
| 32 | function init(appIframe, devtoolsContainer, appSource) { |
| 33 | const {contentDocument, contentWindow} = appIframe; |
| 34 | |
| 35 | // Wire each DevTools instance directly to its app. |
| 36 | // By default, DevTools dispatches "message" events on the window, |
| 37 | // but this means that only one instance of DevTools can live on a page. |
| 38 | const wall = { |
| 39 | _listeners: [], |
| 40 | listen(listener) { |
| 41 | if (__DEBUG__) { |
| 42 | console.log('[Shell] Wall.listen()'); |
| 43 | } |
| 44 | |
| 45 | wall._listeners.push(listener); |
| 46 | return () => { |
| 47 | const index = wall._listeners.indexOf(listener); |
| 48 | if (index !== -1) { |
| 49 | wall._listeners.splice(index, 1); |
| 50 | } |
| 51 | }; |
| 52 | }, |
| 53 | send(event, payload) { |
| 54 | if (__DEBUG__) { |
| 55 | console.log('[Shell] Wall.send()', {event, payload}); |
| 56 | } |
| 57 | |
| 58 | wall._listeners.forEach(listener => listener({event, payload})); |
| 59 | }, |
| 60 | }; |
| 61 | |
| 62 | const backendBridge = createBackendBridge(contentWindow, wall); |
| 63 | |
| 64 | initializeBackend(contentWindow); |
| 65 | |
| 66 | const frontendBridge = createFrontendBridge(contentWindow, wall); |
| 67 | const store = createStore(frontendBridge); |
| 68 | const DevTools = createDevTools(contentWindow, { |
| 69 | bridge: frontendBridge, |
| 70 | store, |
| 71 | }); |
| 72 | |
| 73 | inject(contentDocument, appSource, () => { |
| 74 | createRoot(devtoolsContainer).render(<DevTools />); |
| 75 | }); |
| 76 | |
| 77 | activateBackend(contentWindow, {bridge: backendBridge}); |
| 78 | } |
| 79 | |
| 80 | const appIframeLeft = document.getElementById('iframe-left'); |
| 81 | const appIframeRight = document.getElementById('iframe-right'); |
| 82 | const devtoolsContainerLeft = document.getElementById('devtools-left'); |
| 83 | const devtoolsContainerRight = document.getElementById('devtools-right'); |
| 84 | |
| 85 | init(appIframeLeft, devtoolsContainerLeft, 'dist/multi-left.js'); |
| 86 | init(appIframeRight, devtoolsContainerRight, 'dist/multi-right.js'); |