Stabilize submit-to popover host context to prevent Search row re-renders

[TMisiukiewicz]

Explanation of Change

Pressing the chevron on the Pay split button in a Search list row opens a ButtonWithDropdownMenu popover. That was causing every ExpenseReportListItem and every ReportSubmitToPopoverRoot in the list to re-render.

Root cause: useReportSubmitToPopover subscribes to ONYXKEYS.MODAL (willAlertModalBecomeVisible). That value was a dependency of the openReportSubmitToPopover callback, so the callback got a new identity on every modal/popover toggle. The callback flows into openReportSubmitToPopoverForHost → the memoized hostContextValue → the ReportSubmitToPopoverHostContext.Provider value in ReportSubmitToPopoverHost, which is mounted once around the whole Search list (SearchPage.tsx). Every row's ReportSubmitToPopoverRoot consumes that context, so opening any modal — including the unrelated Pay dropdown — toggled the context reference and re-rendered all rows.

Fix: openReportSubmitToPopover only needs to read willAlertModalBecomeVisible at press time, not depend on it. The value is now mirrored into a ref (willAlertModalBecomeVisibleRef, synced via useEffect) and read via .current inside the callback, and dropped from the deps. The callback — and therefore the shared host context value — now stays referentially stable across MODAL changes, so unrelated popovers no longer re-render every Search row.

Measured impact: total render time on opening the Pay dropdown dropped from 232ms → 166ms (≈28% improvement).

Fixed Issues

$ #95283

Tests

1. Go to Search.
2. Open the Ready to pay view.
3. Click the chevron/modal next to the Pay button on a report row.
4. Verify the popover opens correctly.

• Verify that no errors appear in the JS console

Offline tests

N/A — no network behavior changed.

QA Steps

Same as tests.

• Verify that no errors appear in the JS console

PR Author Checklist

• I linked the correct issue in the ### Fixed Issues section above
• I wrote clear testing steps that cover the changes made in this PR
  • I added steps for local testing in the Tests section
  • I added steps for the expected offline behavior in the Offline steps section
  • I added steps for Staging and/or Production testing in the QA steps section
  • I added steps to cover failure scenarios (i.e. verify an input displays the correct error message if the entered data is not correct)
  • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
  • I tested this PR with a High Traffic account against the staging or production API to ensure there are no regressions (e.g. long loading states that impact usability).
• I included screenshots or videos for tests on all platforms
• I ran the tests on all platforms & verified they passed on:
  • Android: Native
  • Android: mWeb Chrome
  • iOS: Native
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• I verified there are no console errors (if there's a console error not related to the PR, report it or open an issue for it to be fixed)
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Screenshots/Videos

Android: Native

Android: mWeb Chrome

iOS: Native

iOS: mWeb Safari

MacOS: Chrome / Safari

[codecov]

Codecov Report

✅ Changes either increased or maintained existing code coverage, great job!

Files with missing lines	Coverage Δ
src/hooks/useReportSubmitToPopover.tsx	70.37% <80.00%> (+1.13%)	⬆️
... and 11 files with indirect coverage changes

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Reviewer Checklist

• I have verified the author checklist is complete (all boxes are checked off).
• I verified the correct issue is linked in the ### Fixed Issues section above
• I verified testing steps are clear and they cover the changes made in this PR
  • I verified the steps for local testing are in the Tests section
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  • I verified the steps cover any possible failure scenarios (i.e. verify an input displays the correct error message if the entered data is not correct)
  • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
• I checked that screenshots or videos are included for tests on all platforms
• I included screenshots or videos for tests on all platforms
• I verified that the composer does not automatically focus or open the keyboard on mobile unless explicitly intended. This includes checking that returning the app from the background does not unexpectedly open the keyboard.
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  • Android: HybridApp
  • Android: mWeb Chrome
  • iOS: HybridApp
  • iOS: mWeb Safari
  • MacOS: Chrome / Safari
• If there are any errors in the console that are unrelated to this PR, I either fixed them (preferred) or linked to where I reported them in Slack
• I verified proper code patterns were followed (see Reviewing the code)
  • I verified that any callback methods that were added or modified are named for what the method does and never what callback they handle (i.e. toggleReport and not onIconClick).
  • I verified that comments were added to code that is not self explanatory
  • I verified that any new or modified comments were clear, correct English, and explained "why" the code was doing something instead of only explaining "what" the code was doing.
  • I verified any copy / text that was added to the app is grammatically correct in English. It adheres to proper capitalization guidelines (note: only the first word of header/labels should be capitalized), and is either coming verbatim from figma or has been approved by marketing (in order to get marketing approval, ask the Bug Zero team member to add the Waiting for copy label to the issue)
• If a new code pattern is added I verified it was agreed to be used by multiple Expensify engineers
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• If any new file was added I verified that:
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• If a new CSS style is added I verified that:
  • A similar style doesn't already exist
  • The style can't be created with an existing StyleUtils function (i.e. StyleUtils.getBackgroundAndBorderStyle(theme.componentBG)
• If the PR modifies code that runs when editing or sending messages, I tested and verified there is no unexpected behavior for all supported markdown - URLs, single line code, code blocks, quotes, headings, bold, strikethrough, and italic.
• If the PR modifies a generic component, I tested and verified that those changes do not break usages of that component in the rest of the App (i.e. if a shared library or component like Avatar is modified, I verified that Avatar is working as expected in all cases)
• If the PR modifies a component related to any of the existing Storybook stories, I tested and verified all stories for that component are still working as expected.
• If the PR modifies a component or page that can be accessed by a direct deeplink, I verified that the code functions as expected when the deeplink is used - from a logged in and logged out account.
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  • I added Design label and/or tagged @Expensify/design so the design team can review the changes.
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Screenshots/Videos

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MacOS: Chrome / Safari

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[situchan]

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platform	result
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🤖 android 🤖	success ✅
🍎 iOS 🍎	success ✅

[MelvinBot]

🤖 No help site changes required.

I reviewed the changes in this PR against the help site articles under App/docs/articles.

This is a pure internal performance optimization with no user-facing impact:

• The only file touched is src/hooks/useReportSubmitToPopover.tsx.
• The change mirrors willAlertModalBecomeVisible into a ref and drops it from the openReportSubmitToPopover callback dependencies, keeping the callback (and the shared Search host context value) referentially stable so opening an unrelated popover no longer re-renders every Search row.
• There is no change to product behavior, features, tab/setting names, buttons, copy, or workflows — nothing that any help article documents.

Since the help site documents user-facing product behavior and this PR changes none of it, no documentation update is needed and I did not create a draft docs PR.

@TMisiukiewicz, no help site PR was created since no documentation changes are required. If you believe a user-facing behavior did change and warrants a docs update, let me know and I'll draft one.

[OSBotify]

🚀 Deployed to production by https://github.com/mountiny in version: 9.4.28-2 🚀

platform	result
🕸 web 🕸	success ✅
🤖 android 🤖	success ✅
🍎 iOS 🍎	success ✅

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• Android