08Hover user card

<main class="stage">
  <section class="uc is-demo" aria-label="User card demo">
    <!-- 가짜 포인터 — 미리보기 루프에서만 보인다 -->
    <span class="uc__pointer" aria-hidden="true"></span>

    <p class="uc__line">
      <span class="uc__ago">Just now</span>
      <button class="uc__trigger" type="button" aria-describedby="uc-card">
        <span class="uc__av" aria-hidden="true"></span>
        <span class="uc__name">Editor</span>
      </button>
      <span class="uc__rest">fixed a document</span>
    </p>

    <!-- 절대배치 카드 — 뿌리의 padding-bottom 이 열린 높이만큼 자리를 잡는다 -->
    <div class="uc__card" id="uc-card" role="tooltip">
      <div class="uc__head">
        <span class="uc__bigav" aria-hidden="true"></span>
        <p class="uc__who">
          <span class="uc__cardName">Editor</span>
          <span class="uc__job">Document editor</span>
        </p>
      </div>
      <div class="uc__stats">
        <p class="uc__stat"><span class="uc__val">128</span><span class="uc__lab">Docs edited</span></p>
        <p class="uc__stat"><span class="uc__val">36</span><span class="uc__lab">Thanks received</span></p>
      </div>
      <span class="uc__fill" aria-hidden="true"><span class="uc__fillIn"></span></span>
    </div>
  </section>
</main>

@use "../../../../site/static/demo-tokens" as *;

// 279 아바타 팔레트(쓰는 색만) — 이니셜 글자는 언제나 $subject-cream
$av-blue: #7c90be;   // 5.29:1 (크림 글자 기준)
$av-deep: #4a4452;   // 페이퍼 무대 보조 글자 9.38:1

// ── 변수 3개 ──────────────────────────────────────────
$duration: $dur-loop;   // 포인터가 다가가 카드가 열리고 닫히는 한 바퀴
$easing:   $ease-out;   // 포인터 이동·카드 자리 잡기
$color:    $av-blue;    // 아바타·초점 테두리·채우는 막대·포인터

@include stage($stage-paper);

.uc {
  position: relative;
  box-sizing: border-box;
  width: min(300px, 100%);
  // 포인터가 다가오는 공간 + 절대배치 카드의 열린 높이(237 실측 — 세로 예약 없으면 BD9 가 터진다)
  padding-top: $sp-6;
  padding-bottom: calc(#{$sp-12} * 2 + #{$sp-3});
}

.uc__line {
  position: relative;
  display: flex;
  align-items: center;
  margin: 0;
  color: $stage-ink;
  font-weight: 500;
  font-size: 13px;
  line-height: 1.2;
}
.uc__ago { flex: none; margin-right: $sp-1; color: $av-deep; }
.uc__rest { margin-left: $sp-1; }

.uc__trigger {
  display: inline-flex;
  align-items: center;
  flex: none;
  gap: $sp-1;
  margin: 0;
  padding: $sp-1 $sp-2;
  border: 0;
  border-radius: $r-pill;
  background: transparent;
  color: $stage-ink;
  font-family: inherit;
  font-weight: 700;
  font-size: 13px;
  line-height: 1.2;
  cursor: pointer;
}
.uc__trigger:hover { background: rgba($stage-ink, .06); }
.uc__trigger:focus-visible { outline: 2px solid $color; outline-offset: 2px; }

.uc__av, .uc__bigav {
  display: grid;
  place-items: center;
  flex: none;
  border-radius: 50%;
  background: $av-blue;
  color: $subject-cream;
  font-weight: 700;
  line-height: 1;
}
.uc__av    { width: $sp-6; height: $sp-6; font-size: 11px; }
.uc__bigav { width: $sp-8; height: $sp-8; font-size: 14px; }

// ── 사용자 카드(정적 상태 — 루프가 없어도 열려 있는 모습이 그대로 보인다) ──
.uc__card {
  position: absolute;
  top: calc(#{$sp-6} + #{$sp-8} + #{$sp-1});   // 포인터 공간 24 + 줄 높이 32 + 간격 4
  left: 0;
  box-sizing: border-box;
  display: grid;
  gap: $sp-2;
  width: calc(#{$sp-12} * 4);
  padding: $sp-3;
  border-radius: $r-card;
  background: $subject-cream;
  box-shadow: $shadow-raised;
}
.uc__card[hidden] { display: none; }
.uc__head { display: flex; align-items: center; gap: $sp-2; }
.uc__who { display: grid; gap: $sp-1; margin: 0; }
.uc__cardName { color: $stage-ink; font-weight: 700; font-size: 14px; line-height: 1.2; }
.uc__job { color: $av-deep; font-weight: 500; font-size: 11px; line-height: 1.2; }
.uc__stats { display: flex; gap: $sp-4; }
.uc__stat { display: grid; gap: $sp-1; margin: 0; }
.uc__val { color: $stage-ink; font-weight: 700; font-size: 15px; line-height: 1; }
.uc__lab { color: $av-deep; font-weight: 500; font-size: 10px; line-height: 1; }
.uc__fill {
  display: block;
  height: $sp-1;
  border-radius: $r-pill;
  background: rgba($stage-ink, .12);
  overflow: hidden;
}
.uc__fillIn {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: $color;
  transform: scaleX(0);
  transform-origin: left center; // 규칙8: 통계 막대 왼쪽 채움
}

// 가짜 포인터 — 실제 조용한 화면에서는 감춘다
.uc__pointer {
  position: absolute;
  top: 0;
  left: $sp-1;
  width: $sp-3;
  height: $sp-3;
  border-radius: 50%;
  background: $color;
  box-shadow: 0 0 0 $sp-1 $stage-paper;
  pointer-events: none;
}
.uc:not(.is-demo) .uc__pointer { visibility: hidden; }

// ── 격자 미리보기 루프 ────────────────────────────────
// 포인터가 트리거로 미끄러지고(0~26%), 도착 순간 카드가 steps(1,end) 컷으로 한 프레임에 나타난다.
// 컷 직후 translateY 6px→0 팝이 프레임을 채우고 28~84% 는 막대가 scaleX 로 차오른다.
// 닫힘(84~92%)은 clip-path 위프로 여러 프레임에 면적을 나눠 줄인다 — 열림 컷이 언제나 최대 변화가
// 되어 poster 가 '카드가 떠 있는 장면'이 된다(266 실측 계열). 복귀는 92% 안에 끝난다.
// 실제 사용자에게는 카드가 타이머(300ms 지연·200ms 유예)로 열리고 닫힌다 — 루프는 그 요약이다.
.uc.is-demo .uc__card {
  animation-name: ucCard, ucWipe;
  animation-duration: $duration, $duration;
  animation-timing-function: $easing, ease-in;
  animation-iteration-count: infinite, infinite;
}
.uc.is-demo .uc__fillIn {
  animation-name: ucFill;
  animation-duration: $duration;
  animation-timing-function: $easing;
  animation-iteration-count: infinite;
}
.uc.is-demo .uc__pointer {
  animation-name: ucPointer;
  animation-duration: $duration;
  animation-timing-function: $easing;
  animation-iteration-count: infinite;
}

@keyframes ucCard {
  0%        { opacity: 0; transform: translateY(6px); animation-timing-function: steps(1, end); }
  26%       { opacity: 1; transform: translateY(6px); animation-timing-function: $easing; }
  34%, 100% { opacity: 1; transform: translateY(0); }
}
@keyframes ucWipe {
  0%, 84%   { clip-path: inset(0 0 0 0); animation-timing-function: ease-in; }
  92%, 100% { clip-path: inset(0 0 100% 0); }
}
@keyframes ucFill {
  0%, 28%   { transform: scaleX(0); }
  84%, 100% { transform: scaleX(1); }
}
@keyframes ucPointer {
  0%        { translate: 0 0; }
  26%       { translate: 64px 22px; }
  40%       { translate: 64px 26px; }
  54%       { translate: 64px 22px; }
  84%       { translate: 64px 22px; }
  92%, 100% { translate: 0 0; }
}

// 좁은 화면 — 포인터 공간만 줄인다. 카드·줄 크기는 그대로(포인터 키프레임 px 와 묶여 있다)
@media (max-width: 340px), (max-height: 220px) {
  .uc { padding-top: $sp-4; }
  .uc__line { font-size: 12px; }
  .uc__trigger { font-size: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  // .uc.is-demo .uc__card (0,3,0) 를 이기려면 !important. 카드는 열린 채 멈춰 보인다
  .uc__card   { animation: none !important; }
  .uc__fillIn { animation: none !important; transform: scaleX(1) !important; }
  .uc__pointer { animation: none !important; }
}

html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ffffff;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.uc {
  position: relative;
  box-sizing: border-box;
  width: min(300px, 100%);
  padding-top: 24px;
  padding-bottom: calc(48px * 2 + 12px);
}

.uc__line {
  position: relative;
  display: flex;
  align-items: center;
  margin: 0;
  color: #17141a;
  font-weight: 500;
  font-size: 13px;
  line-height: 1.2;
}

.uc__ago {
  flex: none;
  margin-right: 4px;
  color: #4a4452;
}

.uc__rest {
  margin-left: 4px;
}

.uc__trigger {
  display: inline-flex;
  align-items: center;
  flex: none;
  gap: 4px;
  margin: 0;
  padding: 4px 8px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: #17141a;
  font-family: inherit;
  font-weight: 700;
  font-size: 13px;
  line-height: 1.2;
  cursor: pointer;
}

.uc__trigger:hover {
  background: rgba(23, 20, 26, 0.06);
}

.uc__trigger:focus-visible {
  outline: 2px solid #7c90be;
  outline-offset: 2px;
}

.uc__av, .uc__bigav {
  display: grid;
  place-items: center;
  flex: none;
  border-radius: 50%;
  background: #7c90be;
  color: #fff7e6;
  font-weight: 700;
  line-height: 1;
}

.uc__av {
  width: 24px;
  height: 24px;
  font-size: 11px;
}

.uc__bigav {
  width: 32px;
  height: 32px;
  font-size: 14px;
}

.uc__card {
  position: absolute;
  top: calc(24px + 32px + 4px);
  left: 0;
  box-sizing: border-box;
  display: grid;
  gap: 8px;
  width: calc(48px * 4);
  padding: 12px;
  border-radius: 16px;
  background: #fff7e6;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
}

.uc__card[hidden] {
  display: none;
}

.uc__head {
  display: flex;
  align-items: center;
  gap: 8px;
}

.uc__who {
  display: grid;
  gap: 4px;
  margin: 0;
}

.uc__cardName {
  color: #17141a;
  font-weight: 700;
  font-size: 14px;
  line-height: 1.2;
}

.uc__job {
  color: #4a4452;
  font-weight: 500;
  font-size: 11px;
  line-height: 1.2;
}

.uc__stats {
  display: flex;
  gap: 16px;
}

.uc__stat {
  display: grid;
  gap: 4px;
  margin: 0;
}

.uc__val {
  color: #17141a;
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
}

.uc__lab {
  color: #4a4452;
  font-weight: 500;
  font-size: 10px;
  line-height: 1;
}

.uc__fill {
  display: block;
  height: 4px;
  border-radius: 999px;
  background: rgba(23, 20, 26, 0.12);
  overflow: hidden;
}

.uc__fillIn {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: #7c90be;
  transform: scaleX(0);
  transform-origin: left center;
}

.uc__pointer {
  position: absolute;
  top: 0;
  left: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #7c90be;
  box-shadow: 0 0 0 4px #ffffff;
  pointer-events: none;
}

.uc:not(.is-demo) .uc__pointer {
  visibility: hidden;
}

.uc.is-demo .uc__card {
  animation-name: ucCard, ucWipe;
  animation-duration: 2s, 2s;
  animation-timing-function: ease-out, ease-in;
  animation-iteration-count: infinite, infinite;
}

.uc.is-demo .uc__fillIn {
  animation-name: ucFill;
  animation-duration: 2s;
  animation-timing-function: ease-out;
  animation-iteration-count: infinite;
}

.uc.is-demo .uc__pointer {
  animation-name: ucPointer;
  animation-duration: 2s;
  animation-timing-function: ease-out;
  animation-iteration-count: infinite;
}

@keyframes ucCard {
  0% {
    opacity: 0;
    transform: translateY(6px);
    animation-timing-function: steps(1, end);
  }
  26% {
    opacity: 1;
    transform: translateY(6px);
    animation-timing-function: ease-out;
  }
  34%, 100% {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes ucWipe {
  0%, 84% {
    clip-path: inset(0 0 0 0);
    animation-timing-function: ease-in;
  }
  92%, 100% {
    clip-path: inset(0 0 100% 0);
  }
}
@keyframes ucFill {
  0%, 28% {
    transform: scaleX(0);
  }
  84%, 100% {
    transform: scaleX(1);
  }
}
@keyframes ucPointer {
  0% {
    translate: 0 0;
  }
  26% {
    translate: 64px 22px;
  }
  40% {
    translate: 64px 26px;
  }
  54% {
    translate: 64px 22px;
  }
  84% {
    translate: 64px 22px;
  }
  92%, 100% {
    translate: 0 0;
  }
}
@media (max-width: 340px), (max-height: 220px) {
  .uc {
    padding-top: 16px;
  }
  .uc__line {
    font-size: 12px;
  }
  .uc__trigger {
    font-size: 12px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .uc__card {
    animation: none !important;
  }
  .uc__fillIn {
    animation: none !important;
    transform: scaleX(1) !important;
  }
  .uc__pointer {
    animation: none !important;
  }
}

(function () {
  var root = document.querySelector('.uc');
  var trigger = root.querySelector('.uc__trigger');
  var card = root.querySelector('.uc__card');
  var openT = 0, closeT = 0;

  // 호버 — 300ms 지연 뒤 열리고, 벗어나면 200ms 유예 뒤 닫힌다.
  // 유예 동안 카드 위로 옮겨 가면 닫히지 않는다(카드에도 같은 핸들러)
  trigger.addEventListener('pointerenter', function () {
    clearTimeout(openT); clearTimeout(closeT);
    openT = setTimeout(function () { card.hidden = false; }, 300);
  });
  function scheduleClose() {
    clearTimeout(openT); clearTimeout(closeT);
    closeT = setTimeout(function () { card.hidden = true; }, 200);
  }
  trigger.addEventListener('pointerleave', scheduleClose);
  card.addEventListener('pointerenter', function () { clearTimeout(closeT); });
  card.addEventListener('pointerleave', scheduleClose);

  // 초점 — 지연 없이 열리고, blur·Escape 으로 닫힌다
  trigger.addEventListener('focus', function () { clearTimeout(closeT); card.hidden = false; });
  trigger.addEventListener('blur', function () { card.hidden = true; });
  trigger.addEventListener('keydown', function (e) { if (e.key === 'Escape') card.hidden = true; });

  // 이니셜은 표시 문자열에서 계산한다(하드코딩 금지) — 언어팩이 바뀌면 이니셜도 따라간다
  function initialOf(name) {
    var p = name.trim().split(/\s+/);
    return /[A-Za-z]/.test(p[0]) ? p.slice(0, 2).map(function (w) { return w.charAt(0).toUpperCase(); }).join('') : p[0].charAt(0);
  }
  var name = root.querySelector('.uc__name').textContent;
  trigger.querySelector('.uc__av').textContent = initialOf(name);
  root.querySelector('.uc__bigav').textContent = initialOf(root.querySelector('.uc__cardName').textContent);

  // 사람이 손을 대면 미리보기 루프를 뗀다
  function stopLoop() { root.classList.remove('is-demo'); }
  root.addEventListener('pointerdown', stopLoop);
  root.addEventListener('focusin', stopLoop);
})();

import { useEffect, useRef, useState } from "react";
import type { CSSProperties, ReactNode } from "react";
import styles from "./AvatarHoverUserCard.module.scss";

export type AvatarHoverUserCardProps = {
  label?: string;
  name?: string;
  ago?: string;
  rest?: string;
  job?: string;
  statALabel?: string;
  statAValue?: string;
  statBLabel?: string;
  statBValue?: string;
  /** 포인터가 다가가 카드가 열리고 닫히는 한 바퀴(ms) */
  duration?: number;
  easing?: string;
  /** 아바타·초점 테두리·채우는 막대·포인터 색 */
  color?: string;
};

type Vars = CSSProperties & { "--duration"?: string; "--easing"?: string; "--color"?: string };
type Box<T> = { current: T };
type KeyEvt = { key: string };

// 이니셜은 표시 문자열에서 계산한다(하드코딩 금지) — 언어팩이 바뀌면 이니셜도 따라간다
function initialOf(name: string): string {
  const p = name.trim().split(/\s+/);
  return /[A-Za-z]/.test(p[0]) ? p.slice(0, 2).map((w) => w.charAt(0).toUpperCase()).join("") : p[0].charAt(0);
}

export default function AvatarHoverUserCard({
  label = "사용자 카드 안내",
  name = "편집자",
  ago = "방금",
  rest = "님이 문서를 고쳤습니다",
  job = "문서 편집 담당",
  statALabel = "고친 문서",
  statAValue = "128",
  statBLabel = "받은 감사",
  statBValue = "36",
  duration = 2000,
  easing = "ease-out",
  color = "#2a5fd8",
}: AvatarHoverUserCardProps): ReactNode {
  const [loop, setLoop] = useState<boolean>(true);
  const [open, setOpen] = useState<boolean>(true);
  const openT = useRef(0) as Box<number>;
  const closeT = useRef(0) as Box<number>;

  useEffect(() => () => { window.clearTimeout(openT.current); window.clearTimeout(closeT.current); }, []);

  // 호버 — 300ms 지연 뒤 열리고, 벗어나면 200ms 유예 뒤 닫힌다.
  // 유예 동안 카드 위로 옮겨 가면 닫히지 않는다(카드에도 같은 핸들러)
  function enter() {
    window.clearTimeout(openT.current);
    window.clearTimeout(closeT.current);
    openT.current = window.setTimeout(() => setOpen(true), 300);
  }
  function leave() {
    window.clearTimeout(openT.current);
    window.clearTimeout(closeT.current);
    closeT.current = window.setTimeout(() => setOpen(false), 200);
  }

  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <section
      className={loop ? `${styles.uc} ${styles.isDemo}` : styles.uc}
      style={vars}
      aria-label={label}
      onPointerDown={() => setLoop(false)}
      onFocus={() => setLoop(false)}
    >
      {/* 가짜 포인터 — 미리보기 루프에서만 보인다 */}
      <span className={styles.pointer} aria-hidden="true" />

      <p className={styles.line}>
        <span className={styles.ago}>{ago}</span>
        <button
          className={styles.trigger}
          type="button"
          aria-describedby="uc-card"
          onPointerEnter={enter}
          onPointerLeave={leave}
          /* 초점 — 지연 없이 열리고, blur·Escape 으로 닫힌다 */
          onFocus={() => { window.clearTimeout(closeT.current); setOpen(true); }}
          onBlur={() => setOpen(false)}
          onKeyDown={(e: KeyEvt) => { if (e.key === "Escape") setOpen(false); }}
        >
          <span className={styles.av} aria-hidden="true">{initialOf(name)}</span>
          <span className={styles.name}>{name}</span>
        </button>
        <span className={styles.rest}>{rest}</span>
      </p>

      <div
        className={styles.card}
        id="uc-card"
        role="tooltip"
        hidden={!open}
        onPointerEnter={() => window.clearTimeout(closeT.current)}
        onPointerLeave={leave}
      >
        <div className={styles.head}>
          <span className={styles.bigav} aria-hidden="true">{initialOf(name)}</span>
          <p className={styles.who}>
            <span className={styles.cardName}>{name}</span>
            <span className={styles.job}>{job}</span>
          </p>
        </div>
        <div className={styles.stats}>
          <p className={styles.stat}><span className={styles.val}>{statAValue}</span><span className={styles.lab}>{statALabel}</span></p>
          <p className={styles.stat}><span className={styles.val}>{statBValue}</span><span className={styles.lab}>{statBLabel}</span></p>
        </div>
        <span className={styles.fill} aria-hidden="true"><span className={styles.fillIn} /></span>
      </div>
    </section>
  );
}