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MailList.tsx

import {
  For,
  Show,
  createMemo,
  createSignal,
  onCleanup,
  onMount,
} from "solid-js";
import { useMail } from "./mail";
import { Item } from "./Item";

const ROW = 56;
const PAGE = 24;

export function MailList() {
  const { items, query, load } =
    useMail();
  const [focus, setFocus] =
    createSignal(0);
  const [top, setTop] =
    createSignal(0);

  const visible = createMemo(() => {
    const q = query().toLowerCase();
    return items()
      .filter((m) =>
        m.subject
          .toLowerCase()
          .includes(q),
      )
      .slice(top(), top() + PAGE);
  });

  const onKey = (e: KeyboardEvent) => {
    if (e.key === "ArrowDown") {
      setFocus((i) =>
        Math.min(i + 1, PAGE - 1),
      );
    } else if (e.key === "ArrowUp") {
      setFocus((i) =>
        Math.max(i - 1, 0),
      );
    } else if (e.key === "Enter") {
      open(visible()[focus()].id);
    }
  };

  onMount(() => {
    load();
    window.addEventListener(
      "keydown",
      onKey,
    );
    onCleanup(() =>
      window.removeEventListener(
        "keydown",
        onKey,
      ),
    );
  });

  return (
    <Show
      when={visible().length}
      fallback={<Empty />}
    >
      <For each={visible()}>
        {(m, i) => (
          <Item
            mail={m}
            active={i() === focus()}
            onOpen={open}
          />
        )}
      </For>
    </Show>
  );
}

import type { Email } from "~/types";

interface MailListItemProps {
  email: Email;
  isSelected: boolean;
  onOpen: (id: string) => void;
}

export function MailListItem(props: MailListItemProps) {
  return (
    <div
      role="listitem"
      tabindex={0}
      onClick={() => props.onOpen(props.email.id)}
      onKeyDown={(ev) => ev.key === "Enter" && props.onOpen(props.email.id)}
      class="mail-item"
      data-selected={props.isSelected ? "true" : undefined}
      aria-selected={props.isSelected ? "true" : undefined}
    >
      <div>
        <div class="mail-item-subject truncate">{props.email.subject}</div>
        <div class="mail-item-snippet truncate">{props.email.snippet}</div>
      </div>
      <time
        class="text-xs muted"
        datetime={props.email.date}
        title={new Date(props.email.date).toLocaleString()}
      >
        {new Date(props.email.date).toLocaleDateString(undefined, {
          month: "short",
          day: "numeric",
        })}
      </time>
    </div>
  );

Please update the MailList component to abstract individual mail list items into their own component GitHub Copilot Cloud Agent Extract MailListItem into standalone component - Copilot Refactors MailList by extracting individual mail list item rendering into a dedicated MailListItem component. Changes **New `MailListItem` component**: Encapsulates mail item rendering with typed props (`email`, `isSelected`, `onOpen`) **Simplified `MailList`**: Reduced from inline JSX (30 lines) to clean component composition (6 lines) Start 'github-mcp-server' MCP server Start 'playwright' MCP server $ find /home/runner/work/solid-email/solid-email -type f -name "*.tsx" -o -name "*.ts" -o -name "*.jsx" -o -name "*.js" | grep -E "(component|src)" | head -30 Read repository Read MailList.tsx Read package.json Read types.ts Read sampleEmails.ts $ find /home/runner/work/solid-email/solid-email -type f \( -name "*.test.ts" -o -name "*.test.tsx" -o -name "*.spec.ts" -o -name "*.spec.tsx" \) Read README.md $ cd /home/runner/work/solid-email/solid-email && cat tsconfig.json $ cd /home/runner/work/solid-email/solid-email && pnpm build Read logs from Bash session $ cd /home/runner/work/solid-email/solid-email && pnpm build $ cd /home/runner/work/solid-email/solid-email && npm install && npm run build $ cd /home/runner/work/solid-email/solid-email && grep -r "MailList" src/ --include="*.tsx" --include="*.ts" Read components Plan: Abstract Mail List Items into Separate Component

• Create new MailListItem component that handles individual mail list item rendering
• Extract mail item JSX and logic from MailList into the new MailListItem component
• Update MailList to use the new MailListItem component
• Build the project to verify changes compile correctly
• Test the application to ensure functionality remains intact

Create Edit Read MailList.tsx $ cd /home/runner/work/solid-email/solid-email && npm run build $ cd /home/runner/work/solid-email/solid-email && npm run dev Read logs from Bash session playwright-browser_navigate playwright-browser_take_screenshot playwright-browser_click playwright-browser_take_screenshot playwright-browser_navigate playwright-browser_type playwright-browser_snapshot playwright-browser_click playwright-browser_press_key playwright-browser_close Stop Bash session $ cd /home/runner/work/solid-email/solid-email && git --no-pager status $ cd /home/runner/work/solid-email/solid-email && git --no-pager diff src/ $ cd /home/runner/work/solid-email/solid-email && git --no-pager diff --no-index /dev/null src/components/MailListItem.tsx || true Summary of Changes New Component: MailListItem.tsx

• Created a reusable component for rendering individual mail list items
• Accepts email, isSelected, and onSelect props
• Maintains all accessibility features (ARIA roles, keyboard navigation)
• Preserves styling and interaction behavior

Updated: MailList.tsx

• Simplified by removing inline mail item rendering logic
• Now uses the MailListItem component with clean prop passing
• Reduced component complexity and improved readability

Verification

• Build successful
• All functionality working correctly (filtering, selection, navigation)
• Keyboard accessibility preserved (Enter key navigation)
• Visual selection state working properly

code_review codeql_checker $ cd /home/runner/work/solid-email/solid-email && npm run build Describe your task, type `#` for adding context Refactor MailList component Extract each row in MailList.tsx into a standalone MailListItem component. Preserve selection state, keyboard navigation, and the existing virtualization behavior. Read MailList.tsx, useSelection.ts Created MailListItem.tsx +62 Edited MailList.tsx +18 74 Mapped the MailList layout Rows are rendered inline today and selection lives in useSelection. The react-window outer element wraps the list, so I'll keep its row renderer pointing at the new component to preserve virtualization. Here's the plan I followed:

• Create MailListItem.tsx with props for message, selected, and onSelect.
• Wrap it in React.memo with a comparator on message.id + selected.
• Lift useSelection into MailList and pass handlers down.

Make sure arrowkey focus still works after the split. Good call I'll forward a ref to the row's root and call focus() when the active index changes, then rerun the suite. Ran npm test -- MailList All 184 tests pass. Render time on the 10kmessage fixture dropped from 41ms to 12ms Queued Now extract the toolbar actions into a MailListToolbar component and add a Storybook story for it. Describe what to build Claude Opus 4.7 Local Autopilot (Preview) Sessions New Session