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[WIP] Inbox panel prototype#86825

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dubielzyk-inbox-panel-prototype
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[WIP] Inbox panel prototype#86825
dubielzyk-expensify wants to merge 10 commits intomainfrom
dubielzyk-inbox-panel-prototype

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@dubielzyk-expensify dubielzyk-expensify commented Apr 1, 2026

Explanation of Change

This is a prototype that moves the Inbox tab from a navigational element to a docked or floating panel on the right. The aim is to give the ability to access any chat from anywhere in the app.

This is just a proof of concept.

Fixed Issues

$
PROPOSAL:

Tests

  • Verify that no errors appear in the JS console

Offline tests

QA Steps

// TODO: These must be filled out, or the issue title must include "[No QA]."

  • 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
    • iOS: mWeb Safari
    • MacOS: Chrome / Safari
  • 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)
  • I followed proper code patterns (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 shown in the product is localized by adding it to src/languages/* files and using the translation method
      • If any non-english text was added/modified, I used JaimeGPT to get English > Spanish translation. I then posted it in #expensify-open-source and it was approved by an internal Expensify engineer. Link to Slack message:
    • I verified all numbers, amounts, dates and phone numbers shown in the product are using the localization methods
    • 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)
    • I verified proper file naming conventions were followed for any new files or renamed files. All non-platform specific files are named after what they export and are not named "index.js". All platform-specific files are named for the platform the code supports as outlined in the README.
    • I verified the JSDocs style guidelines (in STYLE.md) were followed
  • If a new code pattern is added I verified it was agreed to be used by multiple Expensify engineers
  • I followed the guidelines as stated in the Review Guidelines
  • I tested other components that can be impacted by my changes (i.e. if the PR modifies a shared library or component like Avatar, I verified the components using Avatar are working as expected)
  • I verified all code is DRY (the PR doesn't include any logic written more than once, with the exception of tests)
  • I verified any variables that can be defined as constants (ie. in CONST.ts or at the top of the file that uses the constant) are defined as such
  • I verified that if a function's arguments changed that all usages have also been updated correctly
  • If any new file was added I verified that:
    • The file has a description of what it does and/or why is needed at the top of the file if the code is not self explanatory
  • 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 new assets were added or existing ones were modified, I verified that:
    • The assets are optimized and compressed (for SVG files, run npm run compress-svg)
    • The assets load correctly across all supported platforms.
  • 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.
  • If the PR modifies the UI (e.g. new buttons, new UI components, changing the padding/spacing/sizing, moving components, etc) or modifies the form input styles:
    • I verified that all the inputs inside a form are aligned with each other.
    • I added Design label and/or tagged @Expensify/design so the design team can review the changes.
  • If a new page is added, I verified it's using the ScrollView component to make it scrollable when more elements are added to the page.
  • I added unit tests for any new feature or bug fix in this PR to help automatically prevent regressions in this user flow.
  • If the main branch was merged into this PR after a review, I tested again and verified the outcome was still expected according to the Test steps.
  • I verified that similar component doesn't exist in the codebase
  • I verified that all props are defined accurately and each prop has a /** comment above it */
  • I verified that each file is named correctly
  • I verified that each component has a clear name that is non-ambiguous and the purpose of the component can be inferred from the name alone
  • I verified that the only data being stored in component state is data necessary for rendering and nothing else
  • In component if we are not using the full Onyx data that we loaded, I've added the proper selector in order to ensure the component only re-renders when the data it is using changes
  • For Class Components, any internal methods passed to components event handlers are bound to this properly so there are no scoping issues (i.e. for onClick={this.submit} the method this.submit should be bound to this in the constructor)
  • I verified that component internal methods bound to this are necessary to be bound (i.e. avoid this.submit = this.submit.bind(this); if this.submit is never passed to a component event handler like onClick)
  • I verified that all JSX used for rendering exists in the render method
  • I verified that each component has the minimum amount of code necessary for its purpose, and it is broken down into smaller components in order to separate concerns and functions

Screenshots/Videos

Android: Native
Android: mWeb Chrome
iOS: Native
iOS: mWeb Safari
MacOS: Chrome / Safari

@dubielzyk-expensify dubielzyk-expensify requested review from a team as code owners April 1, 2026 02:51
@melvin-bot melvin-bot bot requested review from joekaufmanexpensify and removed request for a team April 1, 2026 02:51
@melvin-bot melvin-bot bot requested a review from inimaga April 1, 2026 02:51
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melvin-bot bot commented Apr 1, 2026

@inimaga Please copy/paste the Reviewer Checklist from here into a new comment on this PR and complete it. If you have the K2 extension, you can simply click: [this button]

@dubielzyk-expensify dubielzyk-expensify removed the request for review from inimaga April 1, 2026 02:52
@dubielzyk-expensify dubielzyk-expensify marked this pull request as draft April 1, 2026 02:52
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github-actions bot commented Apr 1, 2026

🚧 @dubielzyk-expensify has triggered a test Expensify/App build. You can view the workflow run here.

Comment thread src/App.tsx
import React from 'react';
import {LogBox, View} from 'react-native';
import React, {useCallback, useEffect, useState} from 'react';
// eslint-disable-next-line no-restricted-imports
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❌ CONSISTENCY-5 (docs)

The eslint-disable-next-line no-restricted-imports comment lacks a justification explaining why the restricted import is necessary here. ESLint rule disables without justification can mask underlying issues and reduce code quality.

Add a justification comment:

// eslint-disable-next-line no-restricted-imports -- Need raw RN useWindowDimensions to get true viewport width before EffectiveWidthContext override
import {LogBox, useWindowDimensions as useRawWindowDimensions, View} from 'react-native';

Please rate this suggestion with 👍 or 👎 to help us improve! Reactions are used to monitor reviewer efficiency.

Comment thread src/App.tsx
right: FLOATING_PANEL_MARGIN,
width: FLOATING_PANEL_WIDTH,
height: FLOATING_PANEL_HEIGHT,
borderRadius: 12,
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❌ CONSISTENCY-2 (docs)

The floating panel inline style contains multiple magic values: borderRadius: 12, shadowColor: '#000', shadowOffset: {width: 0, height: 8}, shadowOpacity: 0.15, shadowRadius: 24. These hardcoded numbers and the color string bypass the theme system and reduce maintainability.

Extract the floating panel style to useThemeStyles where it can use theme variables and be reused:

// In the styles generator:
floatingInboxPanel: {
    borderRadius: variables.componentBorderRadius,
    overflow: 'hidden',
    borderWidth: 1,
    borderColor: theme.border,
    ...shadow(theme),
}

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onPress={closePanel}
role={CONST.ROLE.BUTTON}
accessibilityLabel={translate('common.close')}
style={[styles.touchableButtonImage, {marginLeft: -10}]}
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❌ CONSISTENCY-2 (docs)

{marginLeft: -10} is a magic number inline style with no documentation explaining its purpose. The negative margin is particularly opaque without context.

Extract to a named constant with a comment, or define in useThemeStyles:

// If this offsets the button to align with content above:
const CLOSE_BUTTON_ALIGNMENT_OFFSET = -10;

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import CONST from '@src/CONST';
import {useInboxPanelActions, useInboxPanelState} from './InboxPanelContext';

type InboxStackParamList = {
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❌ CONSISTENCY-3 (docs)

The InboxStackParamList type is defined identically in three files: InboxListScreen.tsx (line 18), InboxReportScreen.tsx (line 13), and index.tsx (line 10). Any change to the param list requires updating all three locations.

Define the type once and import it everywhere:

// src/components/InboxSidePanel/types.ts
export type InboxStackParamList = {
    InboxList: undefined;
    InboxReport: {reportID: string};
};

Then import from './types' in each file.


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Comment thread src/App.tsx
const {isOpen, isFloating} = useInboxPanelState();
const {width: rawWindowWidth} = useRawWindowDimensions();
const theme = useTheme();
const panelWidth = Math.max(rawWindowWidth * 0.2, 350);
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❌ CONSISTENCY-3 (docs)

The panel width formula Math.max(rawWindowWidth * 0.2, 350) is duplicated in three places: App.tsx line 91, App.tsx line 112 (inside useEffect), and useRootNavigatorScreenOptions.ts line 53. If the sizing logic changes, all three must be updated.

Extract to a shared utility:

const MIN_INBOX_PANEL_WIDTH = 350;
const INBOX_PANEL_WIDTH_RATIO = 0.2;

export function getInboxPanelWidth(viewportWidth: number): number {
    return Math.max(viewportWidth * INBOX_PANEL_WIDTH_RATIO, MIN_INBOX_PANEL_WIDTH);
}

Import and call getInboxPanelWidth(rawWindowWidth) in all three locations.


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Comment thread src/App.tsx
// Measured width of the main content container, provided to all children via
// EffectiveWidthContext so useWindowDimensions returns the true available width.
const [mainContentWidth, setMainContentWidth] = useState(rawWindowWidth);
const onMainContentLayout = useCallback((e: LayoutChangeEvent) => {
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❌ CLEAN-REACT-PATTERNS-0 (docs)

React Compiler is enabled and this file compiles successfully. The useCallback wrapping onMainContentLayout is redundant -- the compiler automatically memoizes closures based on their captured variables.

Remove the useCallback wrapper:

const onMainContentLayout = (e: LayoutChangeEvent) => {
    setMainContentWidth(e.nativeEvent.layout.width);
};

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});
}, [navigation, registerPanelNavigation]);

const onSelectRow = useCallback(
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❌ CLEAN-REACT-PATTERNS-0 (docs)

React Compiler is enabled and this file compiles successfully. The useCallback wrapping onSelectRow is redundant -- the compiler automatically memoizes closures based on their captured variables.

Remove the useCallback wrapper:

const onSelectRow = (option: OptionData) => {
    if (!option.reportID) {
        return;
    }
    navigation.navigate('InboxReport', {reportID: option.reportID});
};

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function InboxReportScreen({navigation}: {navigation: ReportScreenProps['navigation']}) {
const localNavigation = useNavigation<StackNavigationProp<InboxStackParamList>>();
const route = useRoute<RouteProp<InboxStackParamList, 'InboxReport'>>();

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❌ CLEAN-REACT-PATTERNS-0 (docs)

React Compiler is enabled and this file compiles successfully. The useCallback for goBack (line 22) and useMemo for sidePanelActions (line 24) are both redundant -- the compiler automatically memoizes closures and derived values.

Remove the manual memoization:

const goBack = () => localNavigation.goBack();

const sidePanelActions = {
    openSidePanel: () => {},
    closeSidePanel: goBack,
};

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setIsOpen(true);
if (panelNavigateRef.current) {
panelNavigateRef.current(reportID);
} else {
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❌ CLEAN-REACT-PATTERNS-0 (docs)

React Compiler is enabled and this file compiles successfully. Multiple useCallback calls (lines 54-73: openPanel, closePanel, togglePanel, toggleFloating, registerPanelNavigation, navigateToReport) and useMemo calls (lines 75-79: stateValue, actionsValue) are all redundant -- the compiler automatically memoizes closures and derived values.

Remove all manual memoization wrappers:

const openPanel = () => setIsOpen(true);
const closePanel = () => setIsOpen(false);
const togglePanel = () => setIsOpen((prev) => !prev);
const toggleFloating = () => setIsFloating((prev) => !prev);
// ... similarly for registerPanelNavigation, navigateToReport

const stateValue = {isOpen, isFloating};
const actionsValue = {openPanel, closePanel, togglePanel, toggleFloating, registerPanelNavigation, navigateToReport};

Please rate this suggestion with 👍 or 👎 to help us improve! Reactions are used to monitor reviewer efficiency.

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