🎨 Palette: Accessibility and loading state improvements#520
🎨 Palette: Accessibility and loading state improvements#520ngoiyaeric wants to merge 2 commits intomainfrom
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…ng state improvements: 🎨 Palette: Accessibility and loading state improvements - Added ARIA labels to icon-only buttons in the Header, ChatPanel, MobileIconsBar, and History components for better accessibility. - Implemented a loading state with a Spinner in the chat interface to provide visual feedback while messages are being sent. - Reused and consolidated the existing messaging state in the Chat component. - Verified changes with Playwright and ensured the build and linting checks pass. Co-authored-by: ngoiyaeric <115367894+ngoiyaeric@users.noreply.github.com>
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WalkthroughPropagates an external Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant MobileIconsBar
participant ChatPanel
participant Chat
participant Backend as Backend/API
User->>MobileIconsBar: Click Send
MobileIconsBar->>Chat: request submit (increment trigger)
Chat->>ChatPanel: invoke submitForm() (triggerSubmit > 0)
ChatPanel->>Chat: setIsPending(true)
Chat->>MobileIconsBar: render Spinner / disable submit
ChatPanel->>ChatPanel: assemble FormData (text + optimistic image URL)
ChatPanel->>Backend: POST formData
activate Backend
Backend-->>ChatPanel: response (success or error)
deactivate Backend
ChatPanel->>ChatPanel: revoke object URLs, remove optimistic message or keep confirmed
ChatPanel->>Chat: setIsPending(false)
Chat->>MobileIconsBar: render send icon / enable submit
ChatPanel-->>User: display final message state
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~25 minutes Possibly related PRs
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Actionable comments posted: 7
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⚠️ Outside diff range comments (1)
components/chat.tsx (1)
56-70:⚠️ Potential issue | 🟡 MinorInconsistent mobile breakpoint between
ChatandChatPanel.
Chatuseswindow.innerWidth < 768(line 59) whileChatPaneluseswindow.innerWidth <= 1024(chat-panel.tsx line 62). These define different "mobile" layouts, which could lead to mismatched rendering (e.g., at 800px,Chatrenders desktop butChatPanelrenders mobile).
🤖 Fix all issues with AI agents
In @.Jules/palette.md:
- Line 1: Update the dated headings that currently read "2025-05-14" to
"2026-02-15" (or to the correct 2026 date) so the learning entries reflect the
PR creation date; specifically edit the heading "## 2025-05-14 - [Accessibility
Audit & Fix for Icon Buttons]" in .Jules/palette.md and any other learning entry
labeled "2025-05-14" (also apply the same change to the section referenced as
"5-5") so all occurrences use the 2026 year consistently.
- Around line 1-7: Change the Markdown formatting in .Jules/palette.md: convert
the first "## 2025-05-14 - [Accessibility Audit & Fix for Icon Buttons]" heading
to a top-level H1 (replace "##" with "#"), ensure there is a blank line before
and after each heading (both the Accessibility heading and the "Loading Feedback
for Submissions" heading), and add a final trailing blank line at the end of the
file so the file ends with a newline; use the exact heading texts from the diff
to locate the places to update.
In `@components/chat-panel.tsx`:
- Around line 104-109: The code creates an object URL with URL.createObjectURL
when selectedFile is added to content (in the block referencing selectedFile and
content) but never revokes it, causing a memory leak; modify the flow so the
created URL is revoked via URL.revokeObjectURL when the blob is no longer needed
— e.g., store the generated URL alongside a flag or id in the content entry used
by UserMessage, revoke the URL after the upload finishes or when the
message/image is removed, and also revoke any remaining object URLs in the
component's cleanup/unmount (use the same identifiers stored in content to find
and revoke each URL).
- Around line 91-134: The submit path in handleSubmit optimistically appends a
UserMessage and clears input before calling submit(formData), so if submit
throws the UI is left stale; wrap the submit call in a try/catch inside
handleSubmit (or add a nested try/catch) to catch errors from submit, and in the
catch either remove the optimistic message via setMessages (filter by the nanoid
you created) or append an error response message (e.g., a Message/ErrorMessage
entry) so the user sees failure; ensure you still call setIsPending?.(false) in
finally and consider restoring input/attachment state by preserving the cleared
values or re-setting them when you remove the optimistic message; reference
handleSubmit, submit, setMessages, UserMessage, setInput, clearAttachment, and
setIsPending in your fix.
- Around line 293-299: The button disabled condition is inconsistent with the
submit handler's guard: replace the current check using input.length === 0 with
one that mirrors the submit handler (e.g., !input.trim()) so whitespace-only
input disables the send button; update the expression that computes disabled
(currently referencing input, selectedFile, isPending) to use !input?.trim() (or
equivalent null-safe trim) together with !selectedFile and isPending so the UI
and the submit handler (handleSubmit/onSubmit) behave identically.
In `@components/chat.tsx`:
- Around line 88-92: The submission trigger is conflated with the in-flight
flag: callers call setIsSubmitting(true) (used by EmptyScreen/Suggestions),
which both signals submit and sets isPending (checked in
ChatPanel.handleSubmit), causing handleSubmit to early-return and freeze state.
Fix by decoupling the trigger from the pending flag: introduce a separate submit
trigger (e.g., submitTrigger counter state or a submitRef) in components that
call setIsSubmitting, update those callers (the handlers that currently call
setIsSubmitting(true)) to increment the submit trigger instead, change the
useEffect in this file to watch the submit trigger and call
chatPanelRef.current.submitForm(), and keep isPending/isSubmitting strictly for
request-in-flight state inside ChatPanel (ensure ChatPanel.handleSubmit uses
isPending only for guarding concurrent requests and its finally block still
resets isPending). Update MobileIconsBar props usage accordingly so triggering
and pending are separate.
In `@components/mobile-icons-bar.tsx`:
- Around line 53-57: The Stripe checkout link currently wraps a <Button> with
aria-label="Usage statistics" which is misleading and semantically incorrect;
update the interactive element so screen readers get an accurate label and avoid
nesting a button inside an anchor: replace the wrapped structure by making the
anchor the primary interactive element (or render the Button as an anchor
variant) and change the aria-label to something like "Purchase credits"
(reference: the <Button> and the
href="https://buy.stripe.com/14A3cv7K72TR3go14Nasg02" and the TentTree icon in
components/mobile-icons-bar.tsx) while preserving target="_blank" and
rel="noopener noreferrer".
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📒 Files selected for processing (6)
.Jules/palette.mdcomponents/chat-panel.tsxcomponents/chat.tsxcomponents/header.tsxcomponents/history.tsxcomponents/mobile-icons-bar.tsx
🧰 Additional context used
🧬 Code graph analysis (2)
components/header.tsx (1)
components/ui/button.tsx (2)
Button(56-56)ButtonProps(36-40)
components/chat-panel.tsx (2)
components/user-message.tsx (1)
UserMessage(15-53)components/ui/spinner.tsx (1)
Spinner(6-19)
🪛 markdownlint-cli2 (0.20.0)
.Jules/palette.md
[warning] 1-1: Headings should be surrounded by blank lines
Expected: 1; Actual: 0; Below
(MD022, blanks-around-headings)
[warning] 1-1: First line in a file should be a top-level heading
(MD041, first-line-heading, first-line-h1)
[warning] 5-5: Headings should be surrounded by blank lines
Expected: 1; Actual: 0; Below
(MD022, blanks-around-headings)
🔇 Additional comments (6)
.Jules/palette.md (1)
1-7: Excellent documentation of learnings!The content effectively captures the key accessibility and UX improvements made in this PR. The learning format is clear and provides actionable guidance for future contributors. This documentation will help maintain consistency in accessibility practices and state management patterns across the codebase.
components/history.tsx (1)
22-22: LGTM! Appropriate aria-labels for the icon-only button, correctly varying by context.components/header.tsx (1)
55-55: LGTM! Descriptive aria-labels consistently added to all icon-only buttons in both desktop and mobile header sections.Also applies to: 74-74, 80-82, 92-94
components/mobile-icons-bar.tsx (1)
61-62: LGTM! Submit button correctly disabled during pending state with spinner feedback.components/chat-panel.tsx (1)
189-189: LGTM! Aria-labels on "Start new chat", "Attach file", "Send message", and "Clear attachment" buttons are clear and appropriate.Also applies to: 238-238, 309-309
components/chat.tsx (1)
134-148: LGTM on prop wiring —isPendingandsetIsPendingare correctly passed to bothMobileIconsBarandChatPanelin the mobile layout, pending the fix for the submission trigger issue above.
✏️ Tip: You can disable this entire section by setting review_details to false in your review settings.
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The biggest issue is a broken mobile submit trigger: isSubmitting is no longer reset to false, so subsequent submissions may not fire the useEffect and the send button can stop working. ChatPanel also creates image preview object URLs via URL.createObjectURL without revoking them, which can cause memory leaks over time. Finally, making the pending-state props optional reduces the reliability of the “consolidated state” goal, and mobile/desktop submit disabling rules are now inconsistent.
Additional notes (2)
- Maintainability |
components/chat-panel.tsx:21-21
Pending state is controlled via optional props (isPending?,setIsPending?). If a parent ever passes only one of them (or passes neither), the component can enter inconsistent UX: isPendingmight beundefinedsodisabled={... || isPending}becomesfalse, allowing double submits.setIsPending?.(true)becomes a no-op, so the spinner never appears.
Given this PR’s goal is to consolidate submission state, making these props optional undermines that consistency.
- Maintainability |
components/mobile-icons-bar.tsx:24-24
The mobile submit button disables whenisPendingis true, but the click handleronSubmitClickstill exists and may be invoked via other paths (e.g., programmatic triggers). Also,isPendingis optional; if it isundefined, the button remains enabled.
Given you’re now centralizing submission state, it’s safer to default isPending to false and short-circuit onSubmitClick when pending to prevent duplicate submissions under race conditions.
Summary of changes
What changed
Accessibility improvements
- Added
aria-labelattributes to multiple icon-only buttons across the UI:components/header.tsx(history toggle, usage toggle, calendar)components/history.tsx(dynamic label based onlocation)components/chat-panel.tsx(new chat, attachment, clear attachment, send)components/mobile-icons-bar.tsx(new chat, search, usage, attachment, send)
Submission/loading UX
- Introduced a pending/submission UI state plumbed from
Chatinto children:ChatPanelnow acceptsisPendingandsetIsPendingand disables re-submit while pending.MobileIconsBarnow acceptsisPendingand disables the submit button while pending.
- Added a
Spinnervisual indicator to send buttons in both desktop (ChatPanel) and mobile (MobileIconsBar).
State consolidation
components/chat.tsxnow passesisSubmittingdown asisPendingand sharessetIsSubmittingwithChatPanelto avoid redundant submission state.
Documentation
- Added
.Jules/palette.mdnotes capturing the accessibility and loading-state learnings for future changes.
| const handleSubmit = async (e: React.FormEvent<HTMLFormElement>) => { | ||
| e.preventDefault() | ||
| if (!input.trim() && !selectedFile) { | ||
| if ((!input.trim() && !selectedFile) || isPending) { | ||
| return | ||
| } | ||
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| const content: ({ type: 'text'; text: string } | { type: 'image'; image: string })[] = [] | ||
| if (input) { | ||
| content.push({ type: 'text', text: input }) | ||
| } | ||
| if (selectedFile && selectedFile.type.startsWith('image/')) { | ||
| content.push({ | ||
| type: 'image', | ||
| image: URL.createObjectURL(selectedFile) | ||
| }) | ||
| } | ||
| setIsPending?.(true) | ||
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||
| setMessages(currentMessages => [ | ||
| ...currentMessages, | ||
| { | ||
| id: nanoid(), | ||
| component: <UserMessage content={content} /> | ||
| try { | ||
| const content: ({ type: 'text'; text: string } | { type: 'image'; image: string })[] = [] | ||
| if (input) { | ||
| content.push({ type: 'text', text: input }) | ||
| } | ||
| if (selectedFile && selectedFile.type.startsWith('image/')) { | ||
| content.push({ | ||
| type: 'image', | ||
| image: URL.createObjectURL(selectedFile) | ||
| }) | ||
| } | ||
| ]) | ||
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||
| const formData = new FormData(e.currentTarget) | ||
| if (selectedFile) { | ||
| formData.append('file', selectedFile) | ||
| } | ||
| setMessages(currentMessages => [ | ||
| ...currentMessages, | ||
| { | ||
| id: nanoid(), | ||
| component: <UserMessage content={content} /> | ||
| } | ||
| ]) | ||
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||
| // Include drawn features in the form data | ||
| formData.append('drawnFeatures', JSON.stringify(mapData.drawnFeatures || [])) | ||
| const formData = new FormData(e.currentTarget) | ||
| if (selectedFile) { | ||
| formData.append('file', selectedFile) | ||
| } | ||
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||
| setInput('') | ||
| clearAttachment() | ||
| // Include drawn features in the form data | ||
| formData.append('drawnFeatures', JSON.stringify(mapData.drawnFeatures || [])) | ||
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| const responseMessage = await submit(formData) | ||
| setMessages(currentMessages => [...currentMessages, responseMessage as any]) | ||
| setInput('') | ||
| clearAttachment() | ||
|
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||
| const responseMessage = await submit(formData) | ||
| setMessages(currentMessages => [...currentMessages, responseMessage as any]) | ||
| } finally { | ||
| setIsPending?.(false) | ||
| } |
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handleSubmit sets pending state and pushes a UserMessage that includes an image URL created via URL.createObjectURL(selectedFile), but that object URL is never revoked. Over time (especially with repeated image sends), this can leak memory in the browser. Also, moving the content construction inside the try makes it harder to guarantee cleanup if more logic is added later.
Suggestion
Revoke any created object URL once it's no longer needed. One pragmatic approach is to create the object URL in a local variable and revoke it in the finally block.
Example:
let imageUrl: string | undefined
try {
const content: ({ type: 'text'; text: string } | { type: 'image'; image: string })[] = []
if (input) content.push({ type: 'text', text: input })
if (selectedFile && selectedFile.type.startsWith('image/')) {
imageUrl = URL.createObjectURL(selectedFile)
content.push({ type: 'image', image: imageUrl })
}
// ...existing setMessages + submit logic...
} finally {
if (imageUrl) URL.revokeObjectURL(imageUrl)
setIsPending?.(false)
}Reply with "@CharlieHelps yes please" if you’d like me to add a commit with this change.
| <Paperclip className="h-[1.2rem] w-[1.2rem] transition-all rotate-0 scale-100" /> | ||
| </Button> | ||
| <Button variant="ghost" size="icon" data-testid="mobile-submit-button" onClick={onSubmitClick}> | ||
| <ArrowRight className="h-[1.2rem] w-[1.2rem] transition-all rotate-0 scale-100" /> | ||
| <Button variant="ghost" size="icon" data-testid="mobile-submit-button" onClick={onSubmitClick} aria-label="Send message" disabled={isPending}> | ||
| {isPending ? <Spinner /> : <ArrowRight className="h-[1.2rem] w-[1.2rem] transition-all rotate-0 scale-100" />} | ||
| </Button> |
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The mobile submit button is now disabled based solely on isPending. That’s good for preventing double-send, but it does not mirror the desktop behavior of disabling when there’s no input and no attachment. This can regress UX/accessibility by making a seemingly actionable button that does nothing (since the form submit path may short-circuit).
Suggestion
Pass a second prop (e.g., canSubmit), or pass input/hasAttachment to compute disabled consistently across desktop and mobile.
Example API:
interface MobileIconsBarProps {
onAttachmentClick: () => void
onSubmitClick: () => void
isPending: boolean
canSubmit: boolean
}
// ...
disabled={isPending || !canSubmit}Reply with "@CharlieHelps yes please" if you’d like me to add a commit wiring canSubmit from Chat.
I have implemented several improvements to the interface and underlying logic: - Updated the project documentation in .Jules/palette.md with 2026 dates and improved formatting. - Decoupled the sending trigger from the pending state in Chat.tsx using a counter for better reliability. - Resolved a memory leak in ChatPanel by properly tracking and revoking blob URLs. - Enhanced error handling in ChatPanel to ensure input and attachment states are restored and optimistic messages are removed upon failure. - Synchronized the interaction state of the send button with the message handler to ensure UI consistency. - Fixed the Stripe checkout link in the mobile navigation bar to resolve nested interactive elements and improve ARIA labeling. - Updated the UserMessage and ChatPanel types to better support optimistic image tracking. Co-authored-by: ngoiyaeric <115367894+ngoiyaeric@users.noreply.github.com>
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Actionable comments posted: 1
Caution
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⚠️ Outside diff range comments (2)
components/chat.tsx (1)
112-117: 🧹 Nitpick | 🔵 TrivialPotential race:
setInputandsetTriggerSubmitmay not guarantee input is flushed beforesubmitFormreads it.
setInput(query)andsetTriggerSubmit(prev => prev + 1)are batched together in the same synchronous handler. TheuseEffectontriggerSubmitthen callschatPanelRef.current.submitForm()→formRef.current?.requestSubmit()→handleSubmit, which readsinputfrom state.With React 19 batching, both state updates flush together before the effect fires, so
inputshould be current whenhandleSubmitruns. However, this relies on the form's<Textarea>controlled value being in sync — if any async path or intermediate render causes the textarea'sname="input"field to lag behind React state,FormDatawill capture a stale value.Consider reading
inputfrom React state (already done inhandleSubmit) rather than fromFormDatafor the text content, to make this more robust.components/chat-panel.tsx (1)
296-308: 🧹 Nitpick | 🔵 TrivialMinor inconsistency remains in the Enter-key guard vs. submit button disabled state.
Line 302 uses
input.trim().length === 0while Line 328 uses!input.trim(). Both are functionally equivalent, but the different expressions for the same check reduce readability. Consider unifying:♻️ Proposed alignment
- if (input.trim().length === 0 && !selectedFile) { + if (!input.trim() && !selectedFile) {
🤖 Fix all issues with AI agents
In `@components/chat-panel.tsx`:
- Around line 49-57: The forEach callback in the cleanup inside the useEffect is
using an implicit return which Biome lints; update the cleanup to use an
explicit block for the callback so there is no implicit return — locate the
useEffect that references objectUrls (useRef<Set<string>> objectUrls and the
cleanup using urls.forEach(url => URL.revokeObjectURL(url))) and change the
forEach callback to use braces (e.g., urls.forEach(url => {
URL.revokeObjectURL(url); })) so the linter warning is resolved.
📜 Review details
Configuration used: Organization UI
Review profile: ASSERTIVE
Plan: Pro
📒 Files selected for processing (5)
.Jules/palette.mdcomponents/chat-panel.tsxcomponents/chat.tsxcomponents/mobile-icons-bar.tsxcomponents/user-message.tsx
🧰 Additional context used
🧠 Learnings (1)
📚 Learning: 2026-02-08T16:50:33.791Z
Learnt from: ngoiyaeric
Repo: QueueLab/QCX PR: 0
File: :0-0
Timestamp: 2026-02-08T16:50:33.791Z
Learning: The PR branch implements RAG (Retrieval-Augmented Generation) via `lib/actions/rag.ts` which uses Supabase RPC functions `generate_embedding()` and `hybrid_search()` to retrieve relevant context from past conversations. However, there's a bug on line 433 of `app/actions.tsx` where `currentSystemPrompt` is passed to the researcher instead of `augmentedSystemPrompt`, preventing the retrieved context from being used.
Applied to files:
components/chat.tsxcomponents/chat-panel.tsx
🧬 Code graph analysis (1)
components/mobile-icons-bar.tsx (3)
components/ui/button.tsx (2)
Button(56-56)buttonVariants(56-56)lib/utils/index.ts (1)
cn(10-12)components/ui/spinner.tsx (1)
Spinner(6-19)
🪛 Biome (2.3.14)
components/chat-panel.tsx
[error] 54-54: This callback passed to forEach() iterable method should not return a value.
Either remove this return or remove the returned value.
(lint/suspicious/useIterableCallbackReturn)
🔇 Additional comments (8)
components/user-message.tsx (1)
5-7: LGTM — type extension for optimistic image tracking.The optional
isOptimisticflag cleanly extends the union without affecting existing rendering logic. This aligns well with the optimistic UI pattern inchat-panel.tsx..Jules/palette.md (1)
1-9: LGTM — documentation captures useful learnings.Previous review feedback (date corrections, heading level, blank lines) has been addressed.
components/mobile-icons-bar.tsx (2)
54-62: Good fix — replaced nested<Button>inside<a>with a styled anchor.This resolves the previously flagged semantic issue of nesting interactive elements, and the
aria-label="Purchase credits"accurately describes the action.
66-68: LGTM — pending state integration with spinner and disabled state.The submit button correctly reflects the
isPendingstate by disabling itself and swapping the icon for aSpinner.components/chat.tsx (2)
89-93: Good refactor —triggerSubmitcounter decouples submission trigger from pending guard.This correctly addresses the previously flagged critical bug where
setIsSubmitting(true)conflicted with theisPendingguard inhandleSubmit. The counter-based approach ensuressubmitForm()fires independently of the in-flight state.
87-87: No issue found:Chatis correctly wrapped byMapDataProviderat the parent level.The
Chatcomponent callsuseMapData()at line 87 within the parentMapDataProviderdefined inapp/page.tsx(lines 13–15), so the hook has proper context access. The innerMapDataProviderinstances wrapping the JSX at lines 128 and 180 are redundant—they re-provide context already available from the parent—but they do not break functionality.components/chat-panel.tsx (2)
100-167: Solid submission flow with proper error recovery.The
try/catch/finallystructure correctly:
- Captures
currentInputandcurrentFilebefore clearing state (Lines 109-110), enabling restoration on failure.- Removes the optimistic message and restores input/file state on error (Lines 158-160).
- Revokes object URLs in both success and error paths.
- Resets
isPendinginfinally.This addresses the previously flagged unhandled-error and memory-leak issues.
320-333: LGTM — spinner feedback and consistent disabled state on submit button.The
disabledcondition now uses!input.trim()(consistent withhandleSubmit's guard), and theSpinnerprovides clear visual feedback during submission.
✏️ Tip: You can disable this entire section by setting review_details to false in your review settings.
| const objectUrls = useRef<Set<string>>(new Set()) | ||
|
|
||
| useEffect(() => { | ||
| const urls = objectUrls.current | ||
| return () => { | ||
| urls.forEach(url => URL.revokeObjectURL(url)) | ||
| urls.clear() | ||
| } | ||
| }, []) |
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🧹 Nitpick | 🔵 Trivial
Good addition — object URL cleanup prevents memory leaks.
This addresses the previously flagged blob URL leak. The Set-based tracking with cleanup on unmount is a clean pattern.
One minor lint fix: Biome flags the implicit return in the forEach callback (Line 54). Add braces to silence it:
🔧 Proposed fix
- urls.forEach(url => URL.revokeObjectURL(url))
+ urls.forEach(url => { URL.revokeObjectURL(url) })📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| const objectUrls = useRef<Set<string>>(new Set()) | |
| useEffect(() => { | |
| const urls = objectUrls.current | |
| return () => { | |
| urls.forEach(url => URL.revokeObjectURL(url)) | |
| urls.clear() | |
| } | |
| }, []) | |
| const objectUrls = useRef<Set<string>>(new Set()) | |
| useEffect(() => { | |
| const urls = objectUrls.current | |
| return () => { | |
| urls.forEach(url => { URL.revokeObjectURL(url) }) | |
| urls.clear() | |
| } | |
| }, []) |
🧰 Tools
🪛 Biome (2.3.14)
[error] 54-54: This callback passed to forEach() iterable method should not return a value.
Either remove this return or remove the returned value.
(lint/suspicious/useIterableCallbackReturn)
🤖 Prompt for AI Agents
In `@components/chat-panel.tsx` around lines 49 - 57, The forEach callback in the
cleanup inside the useEffect is using an implicit return which Biome lints;
update the cleanup to use an explicit block for the callback so there is no
implicit return — locate the useEffect that references objectUrls
(useRef<Set<string>> objectUrls and the cleanup using urls.forEach(url =>
URL.revokeObjectURL(url))) and change the forEach callback to use braces (e.g.,
urls.forEach(url => { URL.revokeObjectURL(url); })) so the linter warning is
resolved.
2 participants
This PR improves the UX and accessibility of the application by:
PR created automatically by Jules for task 8530882076186184404 started by @ngoiyaeric
Summary by CodeRabbit
New Features
Bug Fixes
Accessibility
Documentation