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…urvey renderer [ENG-3646]
WalkthroughThe React Native SDK adds light, dark, and system appearance settings, including a public setter and live updates while a survey is open. Survey rendering now receives resolved appearance and available workspace- and survey-level custom CSS. The playground adds controls for changing the SDK appearance and app color scheme. The README documents appearance behavior and constraints. Priority: ➖ Normal Merge Risk: 🟡 Moderate · up to A survey may retain the previous theme if it changes during loading, and the package test run fails in normal order. Address both before merging. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 2 functions across 12 files. (2 skipped: 2 unsupported.)
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Actionable comments posted: 2
- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @packages/react-native/src/components/survey-web-view.tsx:
- Around line 111-115: Update the appearance flow around `renderSurvey` so
changes made before the asynchronous renderer is ready are not lost when the
watcher advances `applied`. Retain the latest appearance and apply it after
`renderSurvey` completes, while preserving the existing behavior for appearances
changed after the renderer is ready.
Review comments at
@packages/react-native/src/lib/common/tests/appearance.test.ts:
- Around line 24-26: Update the afterEach hook to clear mock call history
between tests while retaining vi.restoreAllMocks(), so the persistent remove
mock starts each test without calls from preceding tests.
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📒 Files selected for processing (14)
apps/playground/app.jsonapps/playground/src/app.tsxpackages/react-native/README.mdpackages/react-native/src/components/survey-web-view.tsxpackages/react-native/src/components/tests/survey-web-view-harness.test.tspackages/react-native/src/index.tspackages/react-native/src/lib/common/appearance.tspackages/react-native/src/lib/common/setup.tspackages/react-native/src/lib/common/tests/appearance.test.tspackages/react-native/src/lib/common/tests/utils.test.tspackages/react-native/src/lib/common/utils.tspackages/react-native/src/types/config.tspackages/react-native/src/types/survey.tspackages/react-native/src/types/workspace.ts
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Pre-existing, not caused by this PR: the SDK red-screens debug builds on current Expo/RN (this is why the playground didn't run) QA with a fresh Expo 57 / RN 0.86.3 app and default Metro config. This PR's build and the published
Why: Metro resolves the package through Proposed solution: externalize the JSX runtime in external: [
"react",
+ "react/jsx-runtime",
+ "react/jsx-dev-runtime",
"react-native",Verified locally: with this change the dist imports |
A setAppearance call before the renderer existed was injected as a no-op but still recorded as applied, so the survey stayed light and repeats were deduplicated. The page now posts onSurveyRendered and the host holds changes until then, sending the latest one if it differs from the initial value.
startInLoadingState without renderLoading shows react-native-webview's default loader, an opaque white full-screen view, until the page loads. The WebView is already transparent and the renderer paints the card once ready, matching the iOS and Android SDKs.
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2 participants
Ref ENG-3646
What & why
Was: React Native surveys always rendered light, and the SDK dropped the workspace's compiled custom CSS.
Now:
setAppearance("light" | "dark" | "system")switches surveys, live while open. Compiled workspace and survey CSS reachrenderSurvey.setup, or viasetup({ appearance }). Kept acrosslogout, forgotten on app restart, never persisted or sent to the server. An unknown value logs and falls back to light."system"follows the app's theme (Appearance.getColorScheme()), not the phone's; the native listener exists only while a survey is shown.sourceHTML never changes after display (that would reload and lose answers); live changes go throughinjectJavaScriptwith?.so older servers stay light.customCssforwarded untouched, empty fields omitted, no key when there is none.Where to look
appearance.ts: state andsystemresolution.survey-web-view.tsx: frozen initial value, liveinjectJavaScript, listener cleanup.getCustomCss: prop building.Coverage
systemresolution and live updates, listener removal,customCssomit/forward, WebView propsappearance.test.ts,utils.test.ts,survey-web-view-harness.test.ts. Rerun:pnpm testOpen gaps
Requiring unknown module "react". That is a bug already in the published 3.2.0, not in this PR:vite.config.tsdoes not externalizereact/jsx-runtime(cause and fix in the comment below). Javi's QA covers the behaviour on iOS and Android; the same WebView and renderer path is recorded on feat: add setAppearance for dark mode and forward custom CSS [ENG-3644] ios#64.setAppearance; older servers stay light.Breaking changes
Migrations & env
None. The playground gains appearance buttons and
userInterfaceStyle: "automatic".Agent: claude-sonnet-5-5 (Claude Code), effort unknown.