shift enter

[thinkter]

shift enter in chat

[vercel]

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[greptile-apps]

Greptile Summary

This PR replaces the single-line <input type="text"> with an auto-resizing <textarea> in both the desktop and mobile chat panels, enabling multiline input via Shift+Enter while keeping plain Enter as the send action. Messages are also updated to render with whitespace-pre-wrap so stored newlines display correctly.

• Input → textarea: Both panels swap <input> for <textarea rows={1}> with resize-none, a min-h floor, and a max-h cap; a useEffect driven by the input value resets height to auto then expands to scrollHeight, switching overflowY to auto only when content exceeds the CSS max-height.
• Key handling: All Enter-to-submit paths are guarded with !e.shiftKey; the command-picker exact-match branch now calls handleSubmit(e) explicitly (previously it relied on the form's native submit from <input>, which textareas don't fire).
• Message display: whitespace-pre-wrap is added to the message <p> element in both panels so characters saved in messages render as visible line breaks.

Confidence Score: 5/5

Safe to merge — the changes are self-contained UI enhancements with no impact on message persistence or networking.

Both panels convert input to textarea in a consistent, parallel way. The auto-resize logic correctly handles the max-height CSS constraint via the scrollHeight/clientHeight comparison, the Enter/Shift+Enter split is applied uniformly across all suggestion-picker branches, and the explicit handleSubmit call in the exact-match command branch correctly fills the gap left by switching away from a native-submit input. No regressions are evident in submit, autocomplete, or mention flows.

No files require special attention.

Important Files Changed

Filename	Overview
apps/web/src/app/components/ChatPanel.tsx	Converts single-line input to auto-resizing textarea; Shift+Enter inserts newlines, plain Enter submits; adds whitespace-pre-wrap for message rendering; auto-resize useEffect logic is correct.
apps/web/src/app/components/mobile/MobileChatPanel.tsx	Mirrors desktop changes: input→textarea, auto-resize effect, Shift+Enter/Enter key split, whitespace-pre-wrap on messages, items-end alignment in the form footer.

_{Reviews (2): Last reviewed commit: "increase height of text box" | Re-trigger Greptile}