Native Notification Pop

Install

That writes one file: compositions/components/native-notification-pop.html.

Paste it into your composition

Open compositions/components/native-notification-pop.html and copy what is inside into your own composition. A component has no size or duration of its own. It takes both from the composition you paste it into.

Variables

Every one of these has a default, so the piece works untouched. Set the ones you want to change on the element:

Variable	Default	Accepts	What it does
`title`	`Render complete`	string	The notification title line.
`body`	`launch-cut.mp4 is ready to preview`	string	One body line. Long lines truncate with an ellipsis.
`app_label`	`HyperFrames`	string	Small-caps app name row beside the app dot.
`os`	`ios`	`ios`, `macos`	Banner geometry and placement: wide centered iOS or compact top-right macOS.
`at`	`0.3`	0s to 8s, step 0.05s	Seconds after mount start when the banner drops in.
`accent`	`green`	`green`, `blue`, `violet`	App dot color.
`exit`	`none`	`none`, `fade`, `up`	None holds the banner; up tucks it back off the top; fade fades it in place.

Set them with data-variable-values on the element that mounts it. These are the defaults, so this behaves exactly like the preview above until you change one:

<div
  data-composition-id="native-notification-pop"
  data-composition-src="compositions/components/native-notification-pop.html"
  data-variable-values='{"title":"Render complete","body":"launch-cut.mp4 is ready to preview","app_label":"HyperFrames","os":"ios","at":0.3,"accent":"green","exit":"none"}'
></div>

Source

native-notification-pop.html

<!doctype html>
<!--
  native-notification-pop: HyperFrames video primitive (product-demo / overlay)

  One system-faithful notification banner drops in over ANY scene: fast
  arrival, soft overshoot, settled mass. The os enum picks the chrome
  geometry: ios is a wide centered banner with a large radius, macos is a
  compact top-right banner. The banner carries an app dot, an app label, a
  title, and one body line over a backdrop-filter blur; it holds at rest and
  tucks away only via the exit variable. Distinct from notification-stack:
  this is overlay chrome, faithful to the OS, one banner.

  Spring law: arrival is a closed-form underdamped spring sampled from a
  linear driver, y(t) = -offset * e^(-zeta*w*t) * (cos(wd*t) +
  (zeta*w/wd) * sin(wd*t)). Position is a pure function of timeline time, so
  forward seeks, reverse seeks, and repeated seeks are byte-identical, and a
  mid-motion redirect (an exit overlapping the drop) picks up the current
  sampled position instead of snapping (Wave K L1): banner y has exactly one
  owner at any time (spring sampler, then the rest pin, then the exit tween,
  in timeline order), and the drop cue is clamped so the spring always
  completes before OUT begins.

  Backdrop blur: the banner uses backdrop-filter blur + saturate over the
  scene. If a host compositor flattens or lags the blur under seeks, remove
  the backdrop-filter lines; the color-mix surface fill underneath is opaque
  enough to carry the banner on its own (verified fallback).

  Slot (see README.md for a worked example):
    - [data-slot="scene"]: the full-bleed background the banner drops over.
      Replace the children of this element in your installed copy. Default:
      a token backdrop with soft color fields and a skeleton card, saturated
      enough that the banner blur visibly reads.

  Variables (declared in data-composition-variables below):
    - title (string): the notification title line.
    - body (string): one body line. Long lines truncate with an ellipsis.
    - app_label (string, default "HyperFrames"): small-caps app name row.
    - os (ios | macos, default ios): banner geometry and placement.
    - at (number, seconds, default 0.3): when the drop starts, relative to
      mount start. Clamped so the spring settles before any exit.
    - accent (green | blue | violet, default green): app dot color.
      green maps to --brand, blue to --accent, violet to --accent-2.
    - exit (none | fade | up, default none): none holds the banner at rest;
      up tucks the banner back off the top (the native dismiss); fade fades
      it in place. The scene slot holds regardless: frame roots own scene
      transitions.

  Envelope (fixed IN/OUT, elastic HOLD only, never gsap.timeScale()):
    IN   = at + 0.9s spring drop (first contact with rest at at + ~0.31s)
    HOLD = elastic; the banner rests dead still
    OUT  = 0.45s when exit is fade or up, 0 when exit is none

  Sound cue: dispatches a bubbling `hf:sfx` CustomEvent with id
  "notification-pop" at first contact with rest. This primitive never plays
  audio.

  Mount contract: MOUNTABLE SUB-COMPOSITION. The runtime clones only
  <template> contents; #root fills the host box (inset: 0, container-type:
  size), has no data-width/data-height, and registers one paused timeline
  under the literal "native-notification-pop" key. Variables come from
  window.__hyperframes.getVariables().
-->
<html
  lang="en"
  data-composition-id="native-notification-pop"
  data-composition-duration="3"
  data-composition-variables='[
    { "id": "title", "type": "string", "role": "content", "label": "Title", "description": "The notification title line.", "default": "Render complete" },
    { "id": "body", "type": "string", "role": "content", "label": "Body", "description": "One body line. Long lines truncate with an ellipsis.", "default": "launch-cut.mp4 is ready to preview" },
    { "id": "app_label", "type": "string", "role": "content", "label": "App label", "description": "Small-caps app name row beside the app dot.", "default": "HyperFrames" },
    { "id": "os", "type": "enum", "role": "style", "label": "OS", "description": "Banner geometry and placement: wide centered iOS or compact top-right macOS.", "default": "ios", "options": [{ "value": "ios", "label": "iOS" }, { "value": "macos", "label": "macOS" }] },
    { "id": "at", "type": "number", "role": "timing", "label": "Drop start", "description": "Seconds after mount start when the banner drops in.", "default": 0.3, "min": 0, "max": 8, "step": 0.05, "unit": "s" },
    { "id": "accent", "type": "enum", "role": "style", "label": "Accent", "description": "App dot color.", "default": "green", "options": [{ "value": "green", "label": "Green" }, { "value": "blue", "label": "Blue" }, { "value": "violet", "label": "Violet" }] },
    { "id": "exit", "type": "enum", "role": "timing", "label": "Exit", "description": "None holds the banner; up tucks it back off the top; fade fades it in place.", "default": "none", "options": [{ "value": "none", "label": "None" }, { "value": "fade", "label": "Fade" }, { "value": "up", "label": "Up" }] }
  ]'
>
  <head>
    <meta charset="UTF-8" />
    <title>Native Notification Pop</title>
  </head>
  <body>
    <template>
      <div id="root" data-composition-id="native-notification-pop" data-duration="3" data-fps="30">
        <style>
          *,
          *::before,
          *::after {
            box-sizing: border-box;
          }

          #root {
            position: absolute;
            inset: 0;
            overflow: hidden;
            container-type: size;
            isolation: isolate;
            background: var(--bg, #07111f);
            color: var(--fg, #f8fafc);
            font-family: var(--font-body, Inter, system-ui, sans-serif);
            pointer-events: none;
          }

          .nnp-clip {
            position: absolute;
            inset: 0;
            overflow: hidden;
          }

          .nnp-slot,
          .nnp-slot > img,
          .nnp-slot > video {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
          }

          .nnp-slot > img,
          .nnp-slot > video {
            object-fit: cover;
          }

          /* Token backdrop default: soft saturated color fields plus a
             skeleton card, so the banner blur has structure to smear.
             Callers replacing slot children never see any of this. */
          .nnp-default {
            position: absolute;
            inset: 0;
            display: grid;
            place-items: center;
            background:
              radial-gradient(
                50cqw 42cqh at 24% 12%,
                color-mix(in srgb, var(--brand, #22c55e) 34%, transparent) 0%,
                transparent 70%
              ),
              radial-gradient(
                46cqw 40cqh at 82% 26%,
                color-mix(in srgb, var(--accent-2, #c5a3ff) 30%, transparent) 0%,
                transparent 70%
              ),
              radial-gradient(
                ellipse at 50% 90%,
                color-mix(in srgb, var(--surface, #172033) 80%, var(--bg, #07111f)) 0%,
                var(--bg, #07111f) 78%
              );
          }

          .nnp-card {
            width: 52cqw;
            padding: var(--space-3, 4cqh) var(--space-3, 4cqw);
            border: 0.16cqmin solid var(--border, #334155);
            border-radius: var(--radius, 2.4cqmin);
            background: color-mix(in srgb, var(--surface, #172033) 88%, var(--bg, #07111f));
          }

          .nnp-card-bar {
            width: 34%;
            height: 4.2cqh;
            margin-bottom: var(--space-3, 4cqh);
            border-radius: 1.2cqh;
            background: var(--muted, #94a3b8);
            opacity: 0.55;
          }

          .nnp-card-line {
            height: 2.2cqh;
            margin-bottom: var(--space-2, 2.6cqh);
            border-radius: 1.2cqh;
            background: var(--muted, #94a3b8);
            opacity: 0.38;
          }

          .nnp-card-line:nth-of-type(2) {
            width: 90%;
          }

          .nnp-card-line:nth-of-type(3) {
            width: 62%;
          }

          /* The anchor owns placement so the banner transform belongs to the
             spring alone (a translateX(-50%) centering transform would be
             clobbered by the gsap y). */
          .nnp-anchor {
            position: absolute;
            inset: 0 0 auto 0;
            display: flex;
            z-index: 3;
          }

          .nnp-anchor[data-os="ios"] {
            justify-content: center;
            padding-top: 4.5cqh;
          }

          .nnp-anchor[data-os="macos"] {
            justify-content: flex-end;
            padding: 3.5cqh 2.2cqw 0 0;
          }

          .nnp-banner {
            display: flex;
            align-items: center;
            gap: var(--space-2, 2.4cqmin);
            border: 0.14cqmin solid color-mix(in srgb, var(--fg, #f8fafc) 16%, transparent);
            background: color-mix(in srgb, var(--surface, #172033) 62%, transparent);
            -webkit-backdrop-filter: blur(3.2cqmin) saturate(140%);
            backdrop-filter: blur(3.2cqmin) saturate(140%);
            box-shadow: 0 2.4cqh 7cqh color-mix(in srgb, var(--bg, #07111f) 50%, transparent);
            will-change: transform;
          }

          .nnp-anchor[data-os="ios"] .nnp-banner {
            width: 58cqw;
            border-radius: 3.6cqmin;
            padding: 2.6cqmin 3cqmin;
          }

          .nnp-anchor[data-os="macos"] .nnp-banner {
            width: 38cqw;
            border-radius: 2.2cqmin;
            padding: 2.2cqmin 2.6cqmin;
          }

          .nnp-dot {
            flex: 0 0 auto;
            width: 5.4cqmin;
            aspect-ratio: 1;
            border-radius: 30%;
            background: linear-gradient(
              160deg,
              color-mix(in srgb, var(--nnp-accent) 72%, var(--fg, #f8fafc)) 0%,
              var(--nnp-accent) 62%
            );
          }

          .nnp-anchor[data-os="macos"] .nnp-dot {
            width: 4.6cqmin;
            border-radius: 24%;
          }

          .nnp-copy {
            flex: 1 1 auto;
            min-width: 0;
          }

          .nnp-app,
          .nnp-title,
          .nnp-body {
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
          }

          .nnp-app {
            color: var(--muted, #94a3b8);
            font-size: 1.9cqmin;
            font-weight: 500;
            letter-spacing: 0.11em;
            line-height: 1.5;
            text-transform: uppercase;
          }

          .nnp-app:empty {
            display: none;
          }

          .nnp-title {
            color: var(--fg, #f8fafc);
            font-size: 2.7cqmin;
            font-weight: 600;
            line-height: 1.35;
          }

          .nnp-body {
            color: var(--muted, #94a3b8);
            font-size: 2.4cqmin;
            font-weight: 400;
            line-height: 1.4;
          }
        </style>

        <div
          id="native-notification-pop-clip"
          class="nnp-clip clip"
          data-start="0"
          data-duration="3"
          data-track-index="0"
        >
          <div class="nnp-slot" data-slot="scene">
            <!-- SLOT "scene": replace the children of this element with your
                 own full-bleed content (img, video, or HTML). -->
            <div class="nnp-default" aria-hidden="true">
              <div class="nnp-card">
                <div class="nnp-card-bar"></div>
                <div class="nnp-card-line"></div>
                <div class="nnp-card-line"></div>
              </div>
            </div>
          </div>

          <div class="nnp-anchor" data-os="ios">
            <div class="nnp-banner" role="status">
              <div class="nnp-dot" aria-hidden="true"></div>
              <div class="nnp-copy">
                <div class="nnp-app"></div>
                <div class="nnp-title"></div>
                <div class="nnp-body"></div>
              </div>
            </div>
          </div>
        </div>

        <script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
        <script>
          (function () {
            "use strict";

            var root = document.getElementById("root");
            // Literal id: mount flattening strips data-composition-id from the
            // live root before this timeline registers.
            var compositionId = "native-notification-pop";
            var clip = root.querySelector(".nnp-clip");
            var anchor = root.querySelector(".nnp-anchor");
            var banner = root.querySelector(".nnp-banner");

            var vars =
              window.__hyperframes && window.__hyperframes.getVariables
                ? window.__hyperframes.getVariables()
                : {};

            var title = vars.title == null ? "Render complete" : String(vars.title);
            var body = vars.body == null ? "launch-cut.mp4 is ready to preview" : String(vars.body);
            var appLabel = vars.app_label == null ? "HyperFrames" : String(vars.app_label);
            var os = vars.os === "macos" ? "macos" : "ios";
            var rawAt = vars.at == null ? 0.3 : Number(vars.at);
            var at = Number.isFinite(rawAt) ? Math.max(0, Math.min(8, rawAt)) : 0.3;
            var exit = vars.exit === "fade" || vars.exit === "up" ? vars.exit : "none";

            // Each enum choice routes to a DIFFERENT contract token so the
            // variable stays meaningful under a theme.
            var accentColors = {
              green: "var(--brand, #22c55e)",
              blue: "var(--accent, #38bdf8)",
              violet: "var(--accent-2, #c5a3ff)",
            };
            var accent = Object.prototype.hasOwnProperty.call(accentColors, vars.accent)
              ? vars.accent
              : "green";
            // The bundler mirrors composition variables as scoped CSS custom
            // props, so this unit's own accent variable shadows the contract
            // --accent token inside the subtree. When the shadow is present,
            // fall back to the literal contract value instead of var(--accent).
            var computedAccent = getComputedStyle(root).getPropertyValue("--accent").trim();
            if (
              computedAccent === "green" ||
              computedAccent === "blue" ||
              computedAccent === "violet"
            ) {
              accentColors.blue = "#38bdf8";
            }
            root.style.setProperty("--nnp-accent", accentColors[accent]);

            anchor.setAttribute("data-os", os);
            root.querySelector(".nnp-app").textContent = appLabel;
            root.querySelector(".nnp-title").textContent = title;
            root.querySelector(".nnp-body").textContent = body;
            banner.setAttribute("aria-label", appLabel + ": " + title + ". " + body);

            // RETIME RANGE: fixed phases; HOLD is the only elastic span.
            var DROP = 0.9;
            var OUT_BASE = exit === "none" ? 0 : 0.45;
            var duration = Math.max(0.001, parseFloat(root.dataset.duration || "3"));
            var OUT = Math.min(OUT_BASE, duration * 0.2);
            var OUT_START = duration - OUT;
            // The spring always settles before any exit: no second tween ever
            // fights the sampler for banner y (Wave K L1 single-owner form).
            at = Math.min(at, Math.max(0, OUT_START - DROP));

            // Start fully above the frame: measured px at mount (cq-unit
            // transform tweens misbehave under seeks; px measured once do not).
            var clipTop = clip.getBoundingClientRect().top;
            var bannerBottom = banner.getBoundingClientRect().bottom;
            var offset = Math.max(1, bannerBottom - clipTop + 4);

            // System spring constants, tuned against the iOS/macOS banner
            // feel: first contact with rest at ~0.31s, ~3% soft overshoot,
            // visually settled by ~0.7s.
            var OMEGA = 15;
            var ZETA = 0.74;
            var OMEGA_D = OMEGA * Math.sqrt(1 - ZETA * ZETA);
            function springEnvelope(t) {
              return (
                Math.exp(-ZETA * OMEGA * t) *
                (Math.cos(OMEGA_D * t) + ((ZETA * OMEGA) / OMEGA_D) * Math.sin(OMEGA_D * t))
              );
            }
            var LAND = Math.PI / OMEGA_D; // first contact with rest

            function fireSfx(id, t) {
              root.dispatchEvent(
                new CustomEvent("hf:sfx", { detail: { id: id, t: t }, bubbles: true }),
              );
            }

            gsap.set(banner, { y: -offset, opacity: 1 });

            var tl = gsap.timeline({ paused: true });

            // IN: the spring drop. A linear driver samples the closed form,
            // so position is a pure function of time and seeks in either
            // direction land on identical frames.
            var driver = { t: 0 };
            tl.to(
              driver,
              {
                t: DROP,
                duration: DROP,
                ease: "none",
                onUpdate: function () {
                  gsap.set(banner, { y: -offset * springEnvelope(driver.t) });
                },
              },
              at,
            );
            // Pin exactly to rest for the hold (the envelope tail is ~0 but
            // not exactly 0).
            tl.set(banner, { y: 0 }, at + DROP);
            tl.call(
              function () {
                fireSfx("notification-pop", at + LAND);
              },
              [],
              at + LAND,
            );

            // HOLD: settled mass. Dead still.

            // OUT: the banner tucks away only via exit; the scene holds
            // (frame roots own scene transitions).
            if (exit === "up") {
              tl.to(banner, { y: -offset, duration: OUT, ease: "power2.in" }, OUT_START);
            } else if (exit === "fade") {
              tl.to(banner, { opacity: 0, duration: OUT, ease: "power2.in" }, OUT_START);
            }

            tl.seek(0);
            window.__timelines = window.__timelines || {};
            window.__timelines[compositionId] = tl;
          })();
        </script>
      </div>
    </template>
  </body>
</html>

Tagged motion-primitive product-demo overlay notification spring.

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Native Notification Pop

Install

Paste it into your composition

Variables

Source

​Install

​Paste it into your composition

​Variables

​Source

​Related topics

Install

Paste it into your composition

Variables

Source

Related topics