Hold to Confirm

<button class="btn-sig-hold" type="button" data-done="Deleted">
  <span data-label>Hold to delete</span>
</button>

.btn-sig-hold {
  --btn-bg: #e5484d;
  --btn-fg: #ffffff;
  --btn-font: inherit;
  --btn-size: 15px;
  --btn-weight: 600;
  --btn-px: 22px;
  --btn-py: 11px;
  --btn-w: auto;
  --btn-h: auto;
  --btn-bw: 1.5px;
  --btn-line: #e5484d;
  --btn-radius: 10px;
  --btn-shadow: none;
  --btn-speed: 180ms;
}

.btn-sig-hold {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  box-sizing: border-box;
  width: var(--btn-w);
  height: var(--btn-h);
  padding: var(--btn-py) var(--btn-px);
  font-family: var(--btn-font);
  font-size: var(--btn-size);
  font-weight: var(--btn-weight);
  line-height: 1.2;
  color: var(--btn-fg);
  background: color-mix(in srgb, var(--btn-bg) 18%, #14141c);
  border: var(--btn-bw) solid var(--btn-line);
  border-radius: var(--btn-radius);
  box-shadow: var(--btn-shadow);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: all var(--btn-speed) ease;
  overflow: hidden;
  isolation: isolate;
  touch-action: none;
  user-select: none;
}

.btn-sig-hold:focus-visible {
  outline: 2px solid var(--btn-bg);
  outline-offset: 2px;
}

.btn-sig-hold:disabled {
  opacity: 0.5;
  pointer-events: none;
}

.btn-sig-hold__icon {
  width: 1.15em;
  height: 1.15em;
  flex-shrink: 0;
}

.btn-sig-hold::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--btn-bg);
  transform: scaleX(var(--filled, 0));
  transform-origin: 0 50%;
  transition: transform 200ms ease;
}

.btn-sig-hold[data-state=holding] {
  --filled: 1;
}

.btn-sig-hold[data-state=holding]::before {
  transition: transform 1200ms linear;
}

.btn-sig-hold[data-state=done] {
  --filled: 1;
  border-color: #16a34a;
}

.btn-sig-hold[data-state=done]::before {
  background: #16a34a;
}

@media (prefers-reduced-motion: reduce) {
  .btn-sig-hold,
  .btn-sig-hold::before {
    animation: none !important;
    transition: none !important;
  }
}

document.querySelectorAll(".btn-sig-hold").forEach((el) => {
  const label = el.querySelector("[data-label]");
  const idle = label.textContent;
  let timer = 0;
  const reset = () => {
    el.removeAttribute("data-state");
    label.textContent = idle;
  };
  const finish = () => {
    el.dataset.state = "done";
    label.textContent = el.dataset.done;
    el.dispatchEvent(new CustomEvent("confirm", { bubbles: true }));
    timer = setTimeout(reset, 1800);
  };
  const start = () => {
    if (el.dataset.state) return;
    el.dataset.state = "holding";
    timer = setTimeout(finish, 1200);
  };
  const stop = () => {
    if (el.dataset.state !== "holding") return;
    clearTimeout(timer);
    reset();
  };
  const keyDown = (e) => {
    if (e.key !== " " && e.key !== "Enter") return;
    e.preventDefault();
    if (!e.repeat) start();
  };
  const keyUp = (e) => {
    if (e.key === " " || e.key === "Enter") stop();
  };
  const ends = ["pointerup", "pointerleave", "pointercancel", "blur"];
  el.addEventListener("pointerdown", start);
  ends.forEach((name) => el.addEventListener(name, stop));
  el.addEventListener("keydown", keyDown);
  el.addEventListener("keyup", keyUp);
  return () => {
    clearTimeout(timer);
    el.removeEventListener("pointerdown", start);
    ends.forEach((name) => el.removeEventListener(name, stop));
    el.removeEventListener("keydown", keyDown);
    el.removeEventListener("keyup", keyUp);
  };
});

import { useEffect, useRef } from "react";
import type React from "react";
import "./sig-hold.css"; // the CSS tab

function attach(el: HTMLElement) {
  const label = el.querySelector("[data-label]") as HTMLElement;
  const idle = label.textContent;
  let timer = 0;
  const reset = () => {
    el.removeAttribute("data-state");
    label.textContent = idle;
  };
  const finish = () => {
    el.dataset.state = "done";
    label.textContent = el.dataset.done;
    el.dispatchEvent(new CustomEvent("confirm", { bubbles: true }));
    timer = setTimeout(reset, 1800);
  };
  const start = () => {
    if (el.dataset.state) return;
    el.dataset.state = "holding";
    timer = setTimeout(finish, 1200);
  };
  const stop = () => {
    if (el.dataset.state !== "holding") return;
    clearTimeout(timer);
    reset();
  };
  const keyDown = (e: KeyboardEvent) => {
    if (e.key !== " " && e.key !== "Enter") return;
    e.preventDefault();
    if (!e.repeat) start();
  };
  const keyUp = (e: KeyboardEvent) => {
    if (e.key === " " || e.key === "Enter") stop();
  };
  const ends = ["pointerup", "pointerleave", "pointercancel", "blur"];
  el.addEventListener("pointerdown", start);
  ends.forEach((name) => el.addEventListener(name, stop));
  el.addEventListener("keydown", keyDown);
  el.addEventListener("keyup", keyUp);
  return () => {
    clearTimeout(timer);
    el.removeEventListener("pointerdown", start);
    ends.forEach((name) => el.removeEventListener(name, stop));
    el.removeEventListener("keydown", keyDown);
    el.removeEventListener("keyup", keyUp);
  };
}

export function BtnSigHold({ children = "Hold to delete", ...props }: React.ComponentProps<"button">) {
  const ref = useRef<HTMLButtonElement>(null);
  useEffect(() => attach(ref.current!), []);

  return (
    <button className="btn-sig-hold" type="button" data-done="Deleted" ref={ref} {...props}>
      <span data-label>{children}</span>
    </button>
  );
}

<button class="btn-sig-hold relative inline-flex items-center justify-center gap-[0.5em] [box-sizing:border-box] [padding:11px_22px] [font-family:inherit] text-[15px] font-[600] [line-height:1.2] text-[#ffffff] [background:color-mix(in_srgb,_#e5484d_18%,_#14141c)] [border:1.5px_solid_#e5484d] rounded-[10px] [box-shadow:none] cursor-pointer no-underline whitespace-nowrap [transition:all_180ms_ease] overflow-hidden isolate [touch-action:none] [user-select:none] focus-visible:[outline:2px_solid_#e5484d] focus-visible:[outline-offset:2px] disabled:[opacity:0.5] disabled:[pointer-events:none] before:content-[''] before:absolute before:[inset:0] before:[z-index:-1] before:bg-[#e5484d] before:[transform:scaleX(var(--filled,_0))] before:[transform-origin:0_50%] before:[transition:transform_200ms_ease] [&[data-state=holding]]:[--filled:1] [&[data-state=holding]]:before:[transition:transform_1200ms_linear] [&[data-state=done]]:[--filled:1] [&[data-state=done]]:[border-color:#16a34a] [&[data-state=done]]:before:bg-[#16a34a] motion-reduce:[transition:none!important] motion-reduce:before:[transition:none!important]" type="button" data-done="Deleted">
  <span data-label>Hold to delete</span>
</button>

<!-- Needs the script from the JS tab. -->