02Swipe multi-action stack

<main class="stage">
  <ul class="ma-list">
    <li class="ma-row is-demo">
      <div class="ma-row__actions">
        <button class="ma-row__action ma-row__action--fav" type="button" aria-pressed="false">★</button>
        <button class="ma-row__action ma-row__action--archive" type="button">Archive</button>
        <button class="ma-row__action ma-row__action--del" type="button">Delete</button>
      </div>
      <div class="ma-row__content" tabindex="0">
        <span class="ma-row__title">3 new comments</span>
        <span class="ma-row__desc">Someone commented on your post</span>
      </div>
    </li>
  </ul>
</main>

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

$duration: $dur-quick;                                 // 콘텐츠가 밀리는 시간
$easing: $ease-pop;
$color: $subject-blue;                                 // 보관 버튼 색

@include stage($stage-yellow);

.ma-list { list-style: none; margin: 0; padding: 0; width: min(280px, 82vw); }

.ma-row {
  position: relative;
  overflow: hidden;
  border-radius: $r-card;
  transition: height $duration $easing, opacity $duration $easing;
}

.ma-row__actions {
  position: absolute;
  inset: 0 0 0 auto;
  display: flex;
  width: 198px;
}

.ma-row__action {
  flex: 1 0 66px;
  border: 0;
  color: $stage-paper;
  font-weight: 700;
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity $duration $easing, transform $duration $easing, background-color $duration $easing;
}
.ma-row__action--fav { background: $stage-ink; }
.ma-row__action--fav.is-on { background: $stage-yellow; color: $stage-ink; }
.ma-row__action--archive { background: $color; }
.ma-row__action--del { background: $error; }

.ma-row__content {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: $sp-1;
  padding: $sp-4;
  border-radius: $r-card;
  background: $stage-paper;
  transform: translateX(0);
  transition: transform $duration $easing;
  cursor: grab;
  touch-action: pan-y;
}
.ma-row__content:focus-visible { outline: 2px solid $subject-blue; outline-offset: 2px; }
.ma-row:focus-within .ma-row__action { opacity: 1; transform: translateY(0); }

.ma-row__title { display: block; font-weight: 700; font-size: 14px; color: $stage-ink; }
.ma-row__desc { display: block; margin-top: $sp-1; font-size: 12px; color: rgba(23, 20, 26, .6); }

.ma-row.is-demo .ma-row__content { animation: ma-content-loop $dur-loop $easing infinite; }
.ma-row.is-demo .ma-row__action { animation: ma-action-loop $dur-loop $easing infinite; }
.ma-row.is-demo .ma-row__action--fav { animation-delay: 0ms; }
.ma-row.is-demo .ma-row__action--archive { animation-delay: 80ms; }
.ma-row.is-demo .ma-row__action--del { animation-delay: 160ms; }

@keyframes ma-content-loop {
  0%, 15%  { transform: translateX(0); }
  50%, 70% { transform: translateX(-198px); }
  95%, 100% { transform: translateX(0); }
}
@keyframes ma-action-loop {
  0%, 15%  { opacity: 0; transform: translateY(8px); }
  50%, 70% { opacity: 1; transform: translateY(0); }
  95%, 100% { opacity: 0; transform: translateY(8px); }
}

@media (prefers-reduced-motion: reduce) {
  .ma-row__content, .ma-row__action, .ma-row { transition: none; }
  .ma-row.is-demo .ma-row__content { animation: none; transform: translateX(-198px); }
  .ma-row.is-demo .ma-row__action { animation: none; opacity: 1; transform: translateY(0); }
}

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);
}

.ma-list {
  list-style: none;
  margin: 0;
  padding: 0;
  width: min(280px, 82vw);
}

.ma-row {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  transition: height 220ms cubic-bezier(0.2, 1.4, 0.4, 1), opacity 220ms cubic-bezier(0.2, 1.4, 0.4, 1);
}

.ma-row__actions {
  position: absolute;
  inset: 0 0 0 auto;
  display: flex;
  width: 198px;
}

.ma-row__action {
  flex: 1 0 66px;
  border: 0;
  color: #ffffff;
  font-weight: 700;
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 220ms cubic-bezier(0.2, 1.4, 0.4, 1), transform 220ms cubic-bezier(0.2, 1.4, 0.4, 1), background-color 220ms cubic-bezier(0.2, 1.4, 0.4, 1);
}

.ma-row__action--fav {
  background: #17141a;
}

.ma-row__action--fav.is-on {
  background: #ffd23f;
  color: #17141a;
}

.ma-row__action--archive {
  background: #2f6df6;
}

.ma-row__action--del {
  background: #c2361a;
}

.ma-row__content {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px;
  border-radius: 16px;
  background: #ffffff;
  transform: translateX(0);
  transition: transform 220ms cubic-bezier(0.2, 1.4, 0.4, 1);
  cursor: grab;
  touch-action: pan-y;
}

.ma-row__content:focus-visible {
  outline: 2px solid #2f6df6;
  outline-offset: 2px;
}

.ma-row:focus-within .ma-row__action {
  opacity: 1;
  transform: translateY(0);
}

.ma-row__title {
  display: block;
  font-weight: 700;
  font-size: 14px;
  color: #17141a;
}

.ma-row__desc {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: rgba(23, 20, 26, 0.6);
}

.ma-row.is-demo .ma-row__content {
  animation: ma-content-loop 2s cubic-bezier(0.2, 1.4, 0.4, 1) infinite;
}

.ma-row.is-demo .ma-row__action {
  animation: ma-action-loop 2s cubic-bezier(0.2, 1.4, 0.4, 1) infinite;
}

.ma-row.is-demo .ma-row__action--fav {
  animation-delay: 0ms;
}

.ma-row.is-demo .ma-row__action--archive {
  animation-delay: 80ms;
}

.ma-row.is-demo .ma-row__action--del {
  animation-delay: 160ms;
}

@keyframes ma-content-loop {
  0%, 15% {
    transform: translateX(0);
  }
  50%, 70% {
    transform: translateX(-198px);
  }
  95%, 100% {
    transform: translateX(0);
  }
}
@keyframes ma-action-loop {
  0%, 15% {
    opacity: 0;
    transform: translateY(8px);
  }
  50%, 70% {
    opacity: 1;
    transform: translateY(0);
  }
  95%, 100% {
    opacity: 0;
    transform: translateY(8px);
  }
}
@media (prefers-reduced-motion: reduce) {
  .ma-row__content, .ma-row__action, .ma-row {
    transition: none;
  }
  .ma-row.is-demo .ma-row__content {
    animation: none;
    transform: translateX(-198px);
  }
  .ma-row.is-demo .ma-row__action {
    animation: none;
    opacity: 1;
    transform: translateY(0);
  }
}

(function () {
  var OPEN = 198;
  document.querySelectorAll('.ma-row').forEach(function (row) {
    var content = row.querySelector('.ma-row__content');
    var fav = row.querySelector('.ma-row__action--fav');
    var startX = 0, dx = 0, dragging = false;
    function collapse() {
      row.style.height = row.offsetHeight + 'px';
      requestAnimationFrame(function () { row.style.height = '0px'; row.style.opacity = '0'; });
      row.addEventListener('transitionend', function h(e) {
        if (e.propertyName === 'height') { row.removeEventListener('transitionend', h); row.remove(); }
      });
    }
    content.addEventListener('pointerdown', function (e) {
      row.classList.remove('is-demo');
      dragging = true; startX = e.clientX; content.setPointerCapture(e.pointerId);
    });
    content.addEventListener('pointermove', function (e) {
      if (!dragging) return;
      dx = Math.min(0, Math.max(-OPEN, e.clientX - startX));
      content.style.transform = 'translateX(' + dx + 'px)';
    });
    function end() {
      if (!dragging) return;
      dragging = false;
      content.style.transform = dx < -OPEN / 2 ? 'translateX(-' + OPEN + 'px)' : '';
      dx = 0;
    }
    content.addEventListener('pointerup', end);
    content.addEventListener('pointercancel', end);
    fav.addEventListener('click', function () {
      var on = fav.getAttribute('aria-pressed') === 'true';
      fav.setAttribute('aria-pressed', String(!on));
      fav.classList.toggle('is-on', !on);
    });
    row.querySelector('.ma-row__action--archive').addEventListener('click', collapse);
    row.querySelector('.ma-row__action--del').addEventListener('click', collapse);
  });
})();

import { useRef, useState, type CSSProperties, type PointerEvent } from "react";
import styles from "./SwipeMultiActionStack.module.scss";

export type SwipeMultiActionStackProps = {
  title: string;
  desc: string;
  /** 콘텐츠가 밀리는 시간 (기본 220ms) */
  duration?: number;
  easing?: string;
  /** 보관 버튼 색 */
  color?: string;
};

type Vars = CSSProperties & { "--duration"?: string; "--easing"?: string; "--color"?: string };

const OPEN = 198;

export default function SwipeMultiActionStack({
  title,
  desc,
  duration = 220,
  easing = "cubic-bezier(.2, 1.4, .4, 1)",
  color = "#2f6df6",
}: SwipeMultiActionStackProps) {
  const [dx, setDx] = useState(0);
  const [fav, setFav] = useState(false);
  const [gone, setGone] = useState(false);
  const dragging = useRef(false);
  const startX = useRef(0);
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  if (gone) return null;

  const down = (e: PointerEvent<HTMLDivElement>) => {
    dragging.current = true;
    startX.current = e.clientX;
    e.currentTarget.setPointerCapture(e.pointerId);
  };
  const move = (e: PointerEvent<HTMLDivElement>) => {
    if (!dragging.current) return;
    setDx(Math.min(0, Math.max(-OPEN, e.clientX - (startX.current ?? 0))));
  };
  const up = () => {
    if (!dragging.current) return;
    dragging.current = false;
    setDx(dx < -OPEN / 2 ? -OPEN : 0);
  };

  return (
    <li className={styles.row} style={vars}>
      <div className={styles.actions} style={{ opacity: dx < 0 ? 1 : undefined }}>
        <button className={styles.fav} type="button" aria-pressed={fav} onClick={() => setFav((v) => !v)}>★</button>
        <button className={styles.archive} type="button" onClick={() => setGone(true)}>보관</button>
        <button className={styles.delBtn} type="button" onClick={() => setGone(true)}>삭제</button>
      </div>
      <div
        className={styles.content}
        tabIndex={0}
        style={{ transform: `translateX(${dx}px)` }}
        onPointerDown={down}
        onPointerMove={move}
        onPointerUp={up}
        onPointerCancel={up}
      >
        <span className={styles.title}>{title}</span>
        <span className={styles.desc}>{desc}</span>
      </div>
    </li>
  );
}