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react-doctor/no-focus-in-animation-completion-handler

Focus waits for animation completion

  • Category: Accessibility
  • Severity: warn
  • Source: oxlint-plugin-react-doctor
  • Framework: global
  • Enabled when: always
  • Tags: design, react-jsx-only
  • Default: Disabled until configured

Validate the diagnostic

Confirm the reported code matches this rule before you edit it.

Confirm the reported code matches react-doctor/no-focus-in-animation-completion-handler. Compare it with the Before example and verify the same API, framework, and execution context. Treat it as a false positive only when one of those conditions differs.

Compare the code

The corrected pattern shows a focused way to address the diagnostic.

Reported pattern

import { useRef } from "react";
const Dialog = () => {
  const inputRef = useRef(null);
  return <>
    <input ref={inputRef} />
    <div onAnimationEnd={() => inputRef.current.focus()} />
  </>;
};

Corrected pattern

const Dialog = ({ isOpen }) => {
  const inputRef = useRef(null);
  useEffect(() => {
    if (isOpen) inputRef.current?.focus();
  }, [isOpen]);
  return <input ref={inputRef} />;
};

How to fix

Use the corrected pattern as a reference. Preserve behavior that the rule does not require you to change.

Copyable fix prompt

Copy this self-contained prompt into your coding agent after you confirm the diagnostic.

Fix every confirmed react-doctor/no-focus-in-animation-completion-handler diagnostic in the current repository. Required change: - Move focus when interaction state changes, not when animation completes. Reduced or canceled motion must not block focus.
Reference transformation:Before:
import { useRef } from "react";
const Dialog = () => {
  const inputRef = useRef(null);
  return <>
    <input ref={inputRef} />
    <div onAnimationEnd={() => inputRef.current.focus()} />
  </>;
};
After:
const Dialog = ({ isOpen }) => {
  const inputRef = useRef(null);
  useEffect(() => {
    if (isOpen) inputRef.current?.focus();
  }, [isOpen]);
  return <input ref={inputRef} />;
};
Constraints: - Confirm the reported code matches the Before pattern. - Make the smallest change that fixes the root cause. - Preserve behavior and interfaces unrelated to this diagnostic. - Reuse existing project components, utilities, and conventions. - Do not introduce render-phase side effects, render-phase state updates, or Hooks rule violations. - Use existing brand assets, product facts, content, and design tokens. - Do not invent claims, customer data, typefaces, or artwork. - Preserve accessible names, focus order, keyboard behavior, and touch access not targeted by this rule. - Adapt identifiers and framework details instead of copying blindly. - Do not disable the rule or suppress matching code. Verification: - Run focused tests for the changed behavior. - Run React Doctor and confirm this diagnostic no longer appears. - Report the files changed and any checks you could not run.

More Accessibility rules from the rules reference: