06길게 눌러야 지워지는 삭제

<main class="stage">
  <div class="hd is-demo">
    <div class="hd__dial">
      <svg class="hd__ring" viewBox="0 0 88 88" width="88" height="88" aria-hidden="true">
        <circle class="hd__track" cx="44" cy="44" r="40" />
        <circle class="hd__arc" cx="44" cy="44" r="40" />
      </svg>
      <button class="hd__btn" id="hd-btn" type="button" aria-label="길게 눌러 삭제">
        <span class="hd__ic" aria-hidden="true"><svg viewBox="0 0 256 256" width="26" height="26"><g fill="currentColor"><path d="M200 56v152a8 8 0 0 1-8 8H64a8 8 0 0 1-8-8V56Z" opacity=".2"/><path d="M216 48h-40v-8a24 24 0 0 0-24-24h-48a24 24 0 0 0-24 24v8H40a8 8 0 0 0 0 16h8v144a16 16 0 0 0 16 16h128a16 16 0 0 0 16-16V64h8a8 8 0 0 0 0-16M96 40a8 8 0 0 1 8-8h48a8 8 0 0 1 8 8v8H96Zm96 168H64V64h128Zm-80-104v64a8 8 0 0 1-16 0v-64a8 8 0 0 1 16 0m48 0v64a8 8 0 0 1-16 0v-64a8 8 0 0 1 16 0"/></g></svg></span>
      </button>
    </div>
    <p class="hd__log" role="status" aria-live="polite">
      <span class="hd__word" data-word="idle">길게 눌러 삭제</span>
      <span class="hd__word" data-word="done">지웠습니다</span>
    </p>
  </div>
</main>

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

$duration: 1200ms;
$easing: $ease-out;
$color: $stage-orange;

@include stage($stage-yellow);

$circumference: 251.33;   // 2 × π × 40 — 고리를 한 바퀴로 만드는 길이

.hd {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: $sp-3;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

.hd__dial {
  position: relative;
  width: 88px;
  height: 88px;
}
.hd__ring {
  position: absolute;
  left: 0;
  top: 0;
  display: block;
  transform: rotate(-90deg);   // 12시 방향에서 그리기 시작한다
}
.hd__track {
  fill: none;
  stroke: $subject-cream;
  stroke-width: 6;
}
.hd__arc {
  fill: none;
  stroke: $color;
  stroke-width: 6;
  stroke-linecap: round;
  stroke-dasharray: $circumference;
  stroke-dashoffset: $circumference;
}

.hd__btn {
  position: absolute;
  left: 12px;
  top: 12px;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border: 0;
  border-radius: 50%;
  background-color: $subject-ink;
  color: $subject-cream;
  cursor: pointer;
  touch-action: none;          // 길게 누르는 동안 브라우저가 스크롤로 가로채지 않게
}
.hd__btn:focus-visible { outline: 3px solid $subject-ink; outline-offset: 3px; }
.hd__ic { display: inline-flex; }
.hd__ic svg { display: block; }

// 사람이 실제로 누른 경로 — 누르는 동안 차고, 떼면 같은 길로 되감긴다
.hd:not(.is-demo) .hd__arc { transition: stroke-dashoffset $duration $easing; }
.hd:not(.is-demo).is-holding .hd__arc { stroke-dashoffset: 0; }
.hd:not(.is-demo).is-holding .hd__btn { background-color: $color; }
.hd:not(.is-demo)[data-state="done"] .hd__btn { background-color: $color; }
.hd:not(.is-demo)[data-state="done"] .hd__arc { stroke-dashoffset: 0; }

.hd__log {
  position: relative;
  margin: 0;
  width: 160px;
  height: 18px;
}
.hd__word {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  text-align: center;
  font-size: 12px;
  line-height: 18px;
  font-weight: 700;
  color: $subject-ink;
  opacity: 0;
}
.hd:not(.is-demo) .hd__word[data-word="idle"] { opacity: 1; }
.hd:not(.is-demo)[data-state="done"] .hd__word[data-word="idle"] { opacity: 0; }
.hd:not(.is-demo)[data-state="done"] .hd__word[data-word="done"] { opacity: 1; }

// ── 자동 루프: 10% 에 눌러 62% 까지 한 바퀴를 그리고, 68% 에 삭제로 끊었다가 86% 에 되감는다 ──
.hd.is-demo .hd__arc {
  animation-name: hd-draw;
  animation-duration: $dur-loop;
  animation-timing-function: $easing;
  animation-iteration-count: infinite;
}
@keyframes hd-draw {
  0%   { stroke-dashoffset: $circumference; }
  10%  { stroke-dashoffset: $circumference; }
  62%  { stroke-dashoffset: 0; }
  84%  { stroke-dashoffset: 0; }
  90%  { stroke-dashoffset: $circumference; }
  100% { stroke-dashoffset: $circumference; }
}

.hd.is-demo .hd__btn {
  animation-name: hd-press;
  animation-duration: $dur-loop;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}
@keyframes hd-press {
  0%   { background-color: $subject-ink; transform: scale(1); }
  10%  { background-color: $subject-ink; transform: scale(.92); }
  68%  { background-color: $color; transform: scale(1.06); }
  86%  { background-color: $subject-ink; transform: scale(1); }
  100% { background-color: $subject-ink; transform: scale(1); }
}

.hd.is-demo .hd__word {
  animation-duration: $dur-loop;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}
.hd.is-demo .hd__word[data-word="idle"] { animation-name: hd-idle; }
.hd.is-demo .hd__word[data-word="done"] { animation-name: hd-done; }
@keyframes hd-idle {
  0%   { opacity: 1; }
  68%  { opacity: 0; }
  86%  { opacity: 1; }
  100% { opacity: 1; }
}
@keyframes hd-done {
  0%   { opacity: 0; }
  68%  { opacity: 1; }
  86%  { opacity: 0; }
  100% { opacity: 0; }
}

@media (max-width: 340px) {
  .hd { gap: $sp-2; }
  .hd__word { font-size: 11px; line-height: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .hd.is-demo .hd__arc,
  .hd.is-demo .hd__btn,
  .hd.is-demo .hd__word { animation: none !important; }
  .hd:not(.is-demo) .hd__arc { transition: none !important; }
  .hd.is-demo .hd__word[data-word="idle"] { opacity: 1; }
}

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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ffd23f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.hd {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

.hd__dial {
  position: relative;
  width: 88px;
  height: 88px;
}

.hd__ring {
  position: absolute;
  left: 0;
  top: 0;
  display: block;
  transform: rotate(-90deg);
}

.hd__track {
  fill: none;
  stroke: #fff7e6;
  stroke-width: 6;
}

.hd__arc {
  fill: none;
  stroke: #ff4d1f;
  stroke-width: 6;
  stroke-linecap: round;
  stroke-dasharray: 251.33;
  stroke-dashoffset: 251.33;
}

.hd__btn {
  position: absolute;
  left: 12px;
  top: 12px;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border: 0;
  border-radius: 50%;
  background-color: #17141a;
  color: #fff7e6;
  cursor: pointer;
  touch-action: none;
}

.hd__btn:focus-visible {
  outline: 3px solid #17141a;
  outline-offset: 3px;
}

.hd__ic {
  display: inline-flex;
}

.hd__ic svg {
  display: block;
}

.hd:not(.is-demo) .hd__arc {
  transition: stroke-dashoffset 1200ms ease-out;
}

.hd:not(.is-demo).is-holding .hd__arc {
  stroke-dashoffset: 0;
}

.hd:not(.is-demo).is-holding .hd__btn {
  background-color: #ff4d1f;
}

.hd:not(.is-demo)[data-state=done] .hd__btn {
  background-color: #ff4d1f;
}

.hd:not(.is-demo)[data-state=done] .hd__arc {
  stroke-dashoffset: 0;
}

.hd__log {
  position: relative;
  margin: 0;
  width: 160px;
  height: 18px;
}

.hd__word {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  text-align: center;
  font-size: 12px;
  line-height: 18px;
  font-weight: 700;
  color: #17141a;
  opacity: 0;
}

.hd:not(.is-demo) .hd__word[data-word=idle] {
  opacity: 1;
}

.hd:not(.is-demo)[data-state=done] .hd__word[data-word=idle] {
  opacity: 0;
}

.hd:not(.is-demo)[data-state=done] .hd__word[data-word=done] {
  opacity: 1;
}

.hd.is-demo .hd__arc {
  animation-name: hd-draw;
  animation-duration: 2s;
  animation-timing-function: ease-out;
  animation-iteration-count: infinite;
}

@keyframes hd-draw {
  0% {
    stroke-dashoffset: 251.33;
  }
  10% {
    stroke-dashoffset: 251.33;
  }
  62% {
    stroke-dashoffset: 0;
  }
  84% {
    stroke-dashoffset: 0;
  }
  90% {
    stroke-dashoffset: 251.33;
  }
  100% {
    stroke-dashoffset: 251.33;
  }
}
.hd.is-demo .hd__btn {
  animation-name: hd-press;
  animation-duration: 2s;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}

@keyframes hd-press {
  0% {
    background-color: #17141a;
    transform: scale(1);
  }
  10% {
    background-color: #17141a;
    transform: scale(0.92);
  }
  68% {
    background-color: #ff4d1f;
    transform: scale(1.06);
  }
  86% {
    background-color: #17141a;
    transform: scale(1);
  }
  100% {
    background-color: #17141a;
    transform: scale(1);
  }
}
.hd.is-demo .hd__word {
  animation-duration: 2s;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}

.hd.is-demo .hd__word[data-word=idle] {
  animation-name: hd-idle;
}

.hd.is-demo .hd__word[data-word=done] {
  animation-name: hd-done;
}

@keyframes hd-idle {
  0% {
    opacity: 1;
  }
  68% {
    opacity: 0;
  }
  86% {
    opacity: 1;
  }
  100% {
    opacity: 1;
  }
}
@keyframes hd-done {
  0% {
    opacity: 0;
  }
  68% {
    opacity: 1;
  }
  86% {
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}
@media (max-width: 340px) {
  .hd {
    gap: 8px;
  }
  .hd__word {
    font-size: 11px;
    line-height: 16px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .hd.is-demo .hd__arc,
  .hd.is-demo .hd__btn,
  .hd.is-demo .hd__word {
    animation: none !important;
  }
  .hd:not(.is-demo) .hd__arc {
    transition: none !important;
  }
  .hd.is-demo .hd__word[data-word=idle] {
    opacity: 1;
  }
}

// 실제 동작: 누르는 동안만 고리가 그려진다. 손을 떼면 되감기고, 한 바퀴를 다 그렸을 때만 삭제가 일어난다
var root = document.querySelector('.hd');
var btn = document.getElementById('hd-btn');
var arc = document.querySelector('.hd__arc');
var doneTimer = 0;
btn.addEventListener('pointerdown', function (e) {
  root.classList.remove('is-demo');
  root.setAttribute('data-state', 'idle');
  btn.setPointerCapture(e.pointerId);    // 손가락이 버튼 밖으로 나가도 취소를 여기서 받는다
  root.classList.add('is-holding');
  clearTimeout(doneTimer);
  doneTimer = setTimeout(function () { root.setAttribute('data-state', 'done'); root.classList.remove('is-holding'); }, 1200);
});
['pointerup', 'pointercancel', 'pointerleave'].forEach(function (t) {
  btn.addEventListener(t, function () { clearTimeout(doneTimer); root.classList.remove('is-holding'); });
});

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

export type HoldToDeleteButtonProps = {
  label?: string;
  doneLabel?: string;
  duration?: number;
  easing?: string;
  color?: string;
};

type Vars = CSSProperties & { "--duration"?: string; "--easing"?: string; "--color"?: string };
// DOM 전역 타입을 끌어오지 않으려고 필요한 모양만 여기서 선언한다
type PtrEvt = { pointerId: number; currentTarget: { setPointerCapture(id: number): void } };

export default function HoldToDeleteButton({
  label = "Hold to delete",
  doneLabel = "Deleted",
  duration = 1200,
  easing = "ease-out",
  color = "#ff4d1f",
}: HoldToDeleteButtonProps) {
  const [demo, setDemo] = useState(true);
  const [holding, setHolding] = useState(false);
  const [done, setDone] = useState(false);
  const timer = useRef<ReturnType<typeof setTimeout> | null>(null);
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  const stop = useCallback(() => {
    if (timer.current !== null) {
      clearTimeout(timer.current);
      timer.current = null;
    }
  }, []);

  useEffect(() => stop, [stop]);

  // 누르는 동안만 고리가 그려진다 — 한 바퀴를 다 그렸을 때만 삭제가 일어난다
  function down(e: PtrEvt) {
    setDemo(false);
    setDone(false);
    e.currentTarget.setPointerCapture(e.pointerId); // 손가락이 버튼 밖으로 나가도 취소를 여기서 받는다
    setHolding(true);
    stop();
    timer.current = setTimeout(() => {
      setDone(true);
      setHolding(false);
    }, duration);
  }

  function release() {
    stop();
    setHolding(false);
  }

  return (
    <div
      className={`${styles.hd} ${demo ? styles.isDemo : ""} ${holding ? styles.isHolding : ""}`}
      style={vars}
      data-state={done ? "done" : "idle"}
    >
      <div className={styles.dial}>
        <svg className={styles.ring} viewBox="0 0 88 88" width="88" height="88" aria-hidden="true">
          <circle className={styles.track} cx="44" cy="44" r="40" />
          <circle className={styles.arc} cx="44" cy="44" r="40" />
        </svg>
        <button
          className={styles.btn}
          type="button"
          aria-label={label}
          onPointerDown={down}
          onPointerUp={release}
          onPointerCancel={release}
          onPointerLeave={release}
        >
          <span className={styles.ic} aria-hidden="true">
            <svg viewBox="0 0 256 256" width="26" height="26">
              <g fill="currentColor">
                <path d="M200 56v152a8 8 0 0 1-8 8H64a8 8 0 0 1-8-8V56Z" opacity=".2" />
                <path d="M216 48h-40v-8a24 24 0 0 0-24-24h-48a24 24 0 0 0-24 24v8H40a8 8 0 0 0 0 16h8v144a16 16 0 0 0 16 16h128a16 16 0 0 0 16-16V64h8a8 8 0 0 0 0-16M96 40a8 8 0 0 1 8-8h48a8 8 0 0 1 8 8v8H96Zm96 168H64V64h128Zm-80-104v64a8 8 0 0 1-16 0v-64a8 8 0 0 1 16 0m48 0v64a8 8 0 0 1-16 0v-64a8 8 0 0 1 16 0" />
              </g>
            </svg>
          </span>
        </button>
      </div>
      <p className={styles.log} role="status" aria-live="polite">
        <span className={styles.word} data-word="idle">{label}</span>
        <span className={styles.word} data-word="done">{doneLabel}</span>
      </p>
    </div>
  );
}