Install
That writescompositions/components/hw-box-label.html, plus 1 supporting file under assets/fonts/.
Paste it into your composition
Opencompositions/components/hw-box-label.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.
Source
hw-box-label.html
hw-box-label.html
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8" />
<script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
<style>
@font-face {
font-family: "Caveat";
src: url("assets/fonts/Caveat-700-latin.woff2") format("woff2");
font-weight: 700;
font-display: block;
}
*,
*::before,
*::after {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
background: transparent;
overflow: hidden;
}
/* ---- hw-box-label ----------------------------------------------------
Rounded hand-drawn box + marker label (map-label style annotations).
Requires the hw-boil helpers in the host.
Wrapper anatomy (outer to inner): .hw-box = position/move wrapper
(entrances/exits target THIS, never the boil element) > .hw-bx-deform
= deform wrapper (g21 squash scale, transform-origin 50% 100%) >
.hw-bx-boil = boil target (hwBoilPose owns its x/y/rotation) >
content (svg + label). */
.hw-box {
position: absolute;
pointer-events: none;
}
.hw-box .hw-bx-deform,
.hw-box .hw-bx-boil {
position: absolute;
inset: 0;
}
.hw-box svg {
width: 100%;
height: 100%;
overflow: visible;
}
/* :not([stroke]) keeps texture machinery out of the ink rule: the
stroke-matrix mask clone carries a stroke="#fff" attribute and must
not inherit the ink color/width (CSS would beat its attributes). */
.hw-box path:not([stroke]) {
fill: none;
stroke: var(--hw-box-ink, var(--hw-ink, #f4f2ec));
stroke-width: var(--hw-box-w, 6);
stroke-linecap: round;
stroke-linejoin: round;
}
.hw-box .hw-bx-label {
position: absolute;
width: 100%;
text-align: center;
font-family: var(--hw-font-print, "Caveat", cursive);
font-weight: 700;
font-size: 52px;
color: var(--hw-box-ink, var(--hw-ink, #f4f2ec));
white-space: nowrap;
opacity: 0;
text-shadow: 0 2px 14px rgba(0, 0, 0, 0.4);
}
/* self-preview scene */
#hw-bx-scene {
position: absolute;
inset: 0;
background: linear-gradient(140deg, #4a3560 0%, #1c1423 100%);
}
</style>
</head>
<body>
<!-- Self-preview. WIRING: copy the .hw-box CSS + markup pattern (position
wrapper > .hw-bx-deform > .hw-bx-boil > svg + label), the CONFIG
block, the hw family runtime, the spring library, the stroke matrix,
AND the hwWobbleRect / hwBoxBuild / hwBoxOn / hwBoxOff helpers. Size
the wrapper over your target, then wire with positions only:
hwBoxBuild("#hw-my-box", { seed: 3, label: "Europe" });
hwBoxOn(tl, "#hw-my-box", 2.0); // entrance + boil per CONFIG
hwBoxOff(tl, "#hw-my-box", 8.0);
The levers live in CONFIG (entrance / strokeType / labelPos / boil).
Multi-instance hosts may override per instance via hwBoxBuild opts
using the SAME declared values (bounded identically). The helpers own
all durations/eases internally — no raw tween args in host code.
-->
<div
id="hw-bx-root"
data-composition-id="hw-box-label"
data-start="0"
data-duration="4"
data-width="1920"
data-height="1080"
>
<div id="hw-bx-scene"></div>
<div
class="hw-box"
id="hw-bx-demo"
style="left: 700px; top: 420px; width: 420px; height: 230px"
>
<div class="hw-bx-deform">
<div class="hw-bx-boil">
<svg viewBox="0 0 420 230"><path id="hw-bx-demo-path"></path></svg>
<div class="hw-bx-label" id="hw-bx-demo-label"></div>
</div>
</div>
</div>
<div
id="hw-bx-drv"
class="clip"
data-start="0"
data-duration="4"
data-track-index="0"
style="position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none"
></div>
</div>
<script>
(function () {
window.__timelines = window.__timelines || {};
var CONFIG = {
// ── Content (freely editable — not counted) ─────────────────────
// per-instance content rides hwBoxBuild(target, opts):
// opts.label (the label text) · opts.seed (which wobble pose the
// box gets — an identity pick, not a feel lever)
// ── Controls (family base + 3 item-specific; comment grammar is the published-parameter list) ──
entrance: "draw", // variant: "draw" | "drop" — draw = stroke draw-on + label fade (the shipped entrance); drop = landing squash: box+label drop in, contact squash on the deform wrapper, bouncy spring recovery; travel/duration derived, never exposed
strokeType: "plain", // variant: "plain" | "soft" | "sharp" | "spray" — authored stroke texture on the box path (constants per type; draw-on composes via the mask clone)
labelPos: "above", // variant: "above" | "inside" — label above the box or vertically centered inside it
boil: "calm", // variant: "off" | "calm" | "lively" — authored amp/rot pairs over the family-locked frameDrop 3; seed locked
// ── Locked (edit the item source to change) ─────────────────────
// draw duration/ease, drop travel/duration derivation (≈1.9× box
// height into ~0.5s, power2.in), softness tier 0.11 (UI card),
// spring registers, stroke-type constants, boil pose tables,
// label fade timing, wobble amplitude
};
/* ---- hw-boil helpers (shared family runtime — copy once per host) ---- */
window.hwOnUpdate = function (tl, fn) {
if (!tl.__hwRenders) {
tl.__hwRenders = [];
tl.eventCallback("onUpdate", function () {
for (var i = 0; i < tl.__hwRenders.length; i++) tl.__hwRenders[i]();
});
}
tl.__hwRenders.push(fn);
fn();
};
window.hwHash = function (n, seed) {
var x = Math.sin(n * 127.1 + (seed || 1) * 311.7) * 43758.5453;
return (x - Math.floor(x)) * 2 - 1;
};
window.hwBoil = function (tl, target, opts) {
opts = opts || {};
var amp = opts.amp !== undefined ? opts.amp : 1.6;
var rot = opts.rot !== undefined ? opts.rot : 0.5;
var fps = opts.fps || 30;
var drop = opts.frameDrop || 3;
var seed = opts.seed || 1;
var els = gsap.utils.toArray(target);
window.hwOnUpdate(tl, function () {
var step = Math.floor((tl.time() * fps) / drop);
for (var i = 0; i < els.length; i++) {
gsap.set(els[i], {
x: window.hwHash(step * 3 + i * 97, seed) * amp,
y: window.hwHash(step * 3 + 1 + i * 97, seed) * amp,
rotation: (opts.baseRot || 0) + window.hwHash(step * 3 + 2 + i * 97, seed) * rot,
});
}
});
};
// boil control: authored poses over the family-locked frameDrop.
// Unknown pose → default + console error (bounded-controls law).
window.hwBoilPose = function (tl, target, pose, opts) {
opts = opts || {};
var poses = { calm: { amp: 1.6, rot: 0.5 }, lively: { amp: 2.6, rot: 0.9 } };
if (pose === "off") return;
var p = poses[pose];
if (!p) {
console.error('hw: unknown boil pose "' + pose + '" — falling back to "calm"');
p = poses.calm;
}
window.hwBoil(tl, target, { amp: p.amp, rot: p.rot, frameDrop: 3, seed: opts.seed || 1 });
};
/* ---- spring library (authored feel registers) -------------------
The factory owns the recovery duration — consume rec.duration
verbatim, never scale or multiply it. */
var LN1000 = Math.log(1000);
var FEELS = {
snappy: { zeta: 0.9, response: 0.22 },
bouncy: { zeta: 0.5, response: 0.4 },
};
window.springEase = function (opts) {
var f = opts.feel ? FEELS[opts.feel] : opts;
var zeta = f.zeta,
response = f.response;
var w0 = (2 * Math.PI) / response;
var T = LN1000 / (zeta * w0);
var x;
if (zeta < 1) {
var wd = w0 * Math.sqrt(1 - zeta * zeta);
x = function (t) {
return (
1 -
Math.exp(-zeta * w0 * t) *
(Math.cos(wd * t) + ((zeta * w0) / wd) * Math.sin(wd * t))
);
};
} else {
x = function (t) {
return 1 - Math.exp(-w0 * t) * (1 + w0 * t);
};
}
var xT = x(T);
return {
ease: function (p) {
return p >= 1 ? 1 : x(p * T) / xT;
},
duration: T,
zeta: zeta,
response: response,
};
};
/* ---- stroke matrix: plain | soft | sharp | spray ----------------
strokeType is a g09 variant control. Authored constants per type;
unknown value → default ("plain") + console error (bounded-controls
law). sharp = micro stroke-dasharray gaps (dry marker) — draw-on
must therefore ride a MASK clone (the visible dasharray never
animates). spray = index-seeded deterministic dots along the path
via hwHash: position a pure function of path parameter + seed; NO
feTurbulence anywhere.
Returns { draw: pathToDashAnimate, group: maskedGroupOrNull } */
window.hwStrokeTypes = {
plain: {},
soft: { blur: 0.6 },
sharp: { dash: [3.0, 1.55] }, // × stroke-width
spray: {
coreOpacity: 0.5,
coreBlur: 0.4,
density: 0.16,
scatter: 2.6,
rMin: 1.1,
rMax: 2.6,
},
};
window.hwStrokeApply = function (pathEl, type, opts) {
opts = opts || {};
var cfg = window.hwStrokeTypes[type];
if (!cfg) {
console.error('hw: unknown strokeType "' + type + '" — falling back to "plain"');
type = "plain";
cfg = window.hwStrokeTypes.plain;
}
var svg = pathEl.ownerSVGElement;
var ns = "http://www.w3.org/2000/svg";
var w = parseFloat(getComputedStyle(pathEl).strokeWidth) || 6;
if (type === "plain") return { draw: pathEl, group: null, type: type };
if (type === "soft") {
pathEl.style.filter = "blur(" + cfg.blur + "px)";
return { draw: pathEl, group: null, type: type };
}
// sharp + spray: wrap in a masked group, draw-on animates the mask clone
var id =
opts.id ||
"hwsm-" + Math.abs(Math.round(window.hwHash((opts.seed || 1) * 13.7, 5) * 1e6));
var defs = svg.querySelector("defs");
if (!defs) {
defs = document.createElementNS(ns, "defs");
svg.insertBefore(defs, svg.firstChild);
}
var mask = document.createElementNS(ns, "mask");
mask.setAttribute("id", id);
mask.setAttribute("maskUnits", "userSpaceOnUse");
var clone = document.createElementNS(ns, "path");
clone.setAttribute("d", pathEl.getAttribute("d"));
clone.setAttribute("fill", "none");
clone.setAttribute("stroke", "#fff");
clone.setAttribute(
"stroke-width",
w * (type === "spray" ? 2 + (cfg.scatter * 2) / w : 1.7),
);
clone.setAttribute("stroke-linecap", "round");
clone.setAttribute("stroke-linejoin", "round");
mask.appendChild(clone);
defs.appendChild(mask);
var group = document.createElementNS(ns, "g");
group.setAttribute("mask", "url(#" + id + ")");
pathEl.parentNode.insertBefore(group, pathEl);
group.appendChild(pathEl);
if (type === "sharp") {
pathEl.setAttribute(
"stroke-dasharray",
(cfg.dash[0] * w).toFixed(1) + " " + (cfg.dash[1] * w).toFixed(1),
);
} else {
// spray: faint core + seeded dots
pathEl.setAttribute("stroke-opacity", cfg.coreOpacity);
pathEl.style.filter = "blur(" + cfg.coreBlur + "px)";
var len = pathEl.getTotalLength();
var n = Math.round(len * cfg.density * (opts.densityScale || 1));
var seed = opts.seed || 1;
var dots = document.createElementNS(ns, "g");
for (var i = 0; i < n; i++) {
var t = Math.min(
1,
Math.max(0, (i + 0.5) / n + (window.hwHash(i * 7, seed) * 0.35) / n),
);
var pt = pathEl.getPointAtLength(t * len);
var pt2 = pathEl.getPointAtLength(Math.min(len, t * len + 0.5));
var tx = pt2.x - pt.x,
ty = pt2.y - pt.y;
var tl2 = Math.hypot(tx, ty) || 1;
var nx = -ty / tl2,
nyv = tx / tl2;
var off = window.hwHash(i * 7 + 1, seed) * (cfg.scatter + w * 0.55);
var r = cfg.rMin + Math.abs(window.hwHash(i * 7 + 2, seed)) * (cfg.rMax - cfg.rMin);
var c = document.createElementNS(ns, "circle");
c.setAttribute("cx", (pt.x + nx * off).toFixed(1));
c.setAttribute("cy", (pt.y + nyv * off).toFixed(1));
c.setAttribute("r", r.toFixed(2));
c.setAttribute("fill", getComputedStyle(pathEl).stroke);
dots.appendChild(c);
}
group.appendChild(dots);
}
return { draw: clone, group: group, type: type };
};
/* Draw-on across the stroke matrix: dash-animate whatever
hwStrokeApply says. (opts.pen requires the hwPenEase helper from
the write-on items — not bundled here, never passed here.) */
window.hwDrawOn = function (tl, applied, at, dur, opts) {
opts = opts || {};
var p = applied.draw;
var len = p.getTotalLength();
// the draw target is always solid (plain/soft: the path itself; sharp/spray:
// the mask clone — the visible path keeps its texture dasharray untouched)
p.setAttribute("stroke-dasharray", len + " " + len);
p.setAttribute("stroke-dashoffset", len);
gsap.set(p, { opacity: 0 }); // kill the round-cap start nub pre-draw
var ease = opts.pen ? window.hwPenEase(p, opts).ease : opts.ease || "power2.inOut";
tl.set(p, { opacity: 1 }, at);
tl.to(
p,
{ strokeDashoffset: 0, duration: dur === undefined ? 0.7 : dur, ease: ease },
at,
);
};
/* ---- g21 volume squash-stretch on hw impacts ----------------------
S = min(SOFTNESS × v/V_REF, 0.25), v measured numerically from the
entrance ease end-slope; scaleAlong × scalePerp ≈ 1 every frame
(one proxy drives both); in-flight stretch E = 0.55 × SOFTNESS,
velocity term clamped; contact squash ≤2 frames + 1-frame hold;
recovery on a spring register with the factory duration consumed
verbatim. Deformation lives on a WRAPPER (boil owns x/y/rotation of
its own target; type counter-scaled to net identity inside). All
per-frame application runs through hwOnUpdate.
Volume assertion: |along×perp − 1| > 0.01 → console.error (fails check). */
window.hwImpactSquash = function (tl, opts) {
var wrap = opts.wrap; // deform wrapper (transform-origin 50% 100%)
var label = opts.label || null; // counter-scaled type inside
var travel = opts.travel;
var at = opts.at;
var dur = opts.dur;
var softness = opts.softness !== undefined ? opts.softness : 0.11;
var V_REF = 2000;
var E = 0.55 * softness;
var FPS = opts.fps || 30;
var dropEase = opts.dropEase || gsap.parseEase("power2.in");
// measured impact velocity (px/s) from the entrance ease end-slope
var eps = 1e-4;
var v = ((dropEase(1) - dropEase(1 - eps)) / eps) * (travel / dur);
var S = Math.min(softness * (v / V_REF), 0.25);
var rec = window.springEase({ feel: opts.feel || "bouncy" });
var st = { ph: 0, s: 0 }; // ph: flight progress (linear), s: contact squash
gsap.set(wrap, { transformOrigin: "50% 100%" });
var setBoth = function (along) {
gsap.set(wrap, { scaleY: along, scaleX: 1 / along });
if (label) gsap.set(label, { scaleY: 1 / along, scaleX: along });
// assert on the APPLIED transforms — catches any competing tween that
// breaks the one-proxy-drives-both-axes law
var ay = parseFloat(gsap.getProperty(wrap, "scaleY"));
var ax = parseFloat(gsap.getProperty(wrap, "scaleX"));
if (Math.abs(ax * ay - 1) > 0.01)
console.error("hw volume law violated: scaleX*scaleY=" + (ax * ay).toFixed(4));
};
window.hwOnUpdate(tl, function () {
if (st.ph > 0 && st.ph < 1) {
var p = st.ph;
var vp = ((dropEase(Math.min(p + eps, 1)) - dropEase(p)) / eps) * (travel / dur);
setBoth(1 + E * Math.min(Math.abs(vp) / V_REF, 1));
} else {
setBoth(1 - st.s);
}
});
// flight: wrapper position tween + linear proxy (same window)
gsap.set(opts.moveTarget || wrap, { y: -travel }); // off-stage until entrance
tl.fromTo(
opts.moveTarget || wrap,
{ y: -travel },
{ y: 0, duration: dur, ease: dropEase, immediateRender: false },
at,
);
tl.fromTo(st, { ph: 0 }, { ph: 1, duration: dur, ease: "none" }, at);
// contact: squash in 2 frames, 1-frame hold, spring home (factory duration verbatim)
tl.to(st, { s: S, duration: 2 / FPS, ease: "power3.out" }, at + dur);
tl.to(st, { s: 0, duration: rec.duration, ease: rec.ease }, at + dur + 3 / FPS);
return {
v: Math.round(v),
S: +S.toFixed(3),
T: +rec.duration.toFixed(3),
feel: opts.feel || "bouncy",
};
};
// ---- hw-box helpers (copy these too) ----
// Wobbled rounded-rect path in a w x h box.
window.hwWobbleRect = function (w, h, r, seed, amp) {
amp = amp === undefined ? 3.5 : amp;
function wob(n) {
return window.hwHash(n, seed) * amp;
}
var d = "M " + (r + wob(1)) + " " + wob(2);
d += " L " + (w / 2 + wob(3)) + " " + wob(4);
d += " L " + (w - r + wob(5)) + " " + wob(6);
d += " Q " + (w + wob(7)) + " " + wob(8) + " " + (w + wob(9)) + " " + (r + wob(10));
d += " L " + (w + wob(11)) + " " + (h / 2 + wob(12));
d += " L " + (w + wob(13)) + " " + (h - r + wob(14));
d +=
" Q " +
(w + wob(15)) +
" " +
(h + wob(16)) +
" " +
(w - r + wob(17)) +
" " +
(h + wob(18));
d += " L " + (w / 2 + wob(19)) + " " + (h + wob(20));
d += " L " + (r + wob(21)) + " " + (h + wob(22));
d += " Q " + wob(23) + " " + (h + wob(24)) + " " + wob(25) + " " + (h - r + wob(26));
d += " L " + wob(27) + " " + (h / 2 + wob(28));
d += " L " + wob(29) + " " + (r + wob(30));
d += " Q " + wob(31) + " " + wob(32) + " " + (r + wob(33)) + " " + wob(34);
return d;
};
// bounded variant resolution (g09): unknown value → declared default
// + console error. strokeType/boil bound inside their own helpers.
function hwBxPick(name, val, values, dflt) {
if (values.indexOf(val) !== -1) return val;
console.error("hw: unknown " + name + ' "' + val + '" — falling back to "' + dflt + '"');
return dflt;
}
window.hwBoxBuild = function (target, opts) {
opts = opts || {};
var el = document.querySelector(target);
var svg = el.querySelector("svg");
var vb = svg.getAttribute("viewBox").split(" ");
var W = parseFloat(vb[2]),
H = parseFloat(vb[3]);
var path = el.querySelector("path");
path.setAttribute("d", window.hwWobbleRect(W, H, Math.min(26, W * 0.1), opts.seed || 1));
// resolve the control set: CONFIG defaults; per-instance opts
// overrides accepted (declared enum values only — bounded the same)
var cfg = {
seed: opts.seed || 1,
entrance: hwBxPick(
"entrance",
opts.entrance !== undefined ? opts.entrance : CONFIG.entrance,
["draw", "drop"],
"draw",
),
labelPos: hwBxPick(
"labelPos",
opts.labelPos !== undefined ? opts.labelPos : CONFIG.labelPos,
["above", "inside"],
"above",
),
strokeType: opts.strokeType !== undefined ? opts.strokeType : CONFIG.strokeType,
boil: opts.boil !== undefined ? opts.boil : CONFIG.boil,
};
el.__hwCfg = cfg;
el.__hwApplied = window.hwStrokeApply(path, cfg.strokeType, {
seed: cfg.seed,
id: "hw-bx-m-" + target.replace(/[^a-zA-Z0-9_-]/g, ""),
});
var label = el.querySelector(".hw-bx-label");
label.textContent = opts.label || "";
if (cfg.labelPos === "above") {
label.style.top = "-64px";
} else {
label.style.top = "50%";
label.style.transform = "translateY(-50%)";
}
};
window.hwBoxOn = function (tl, target, at) {
var el = document.querySelector(target);
var cfg = el.__hwCfg;
var label = el.querySelector(".hw-bx-label");
if (cfg.entrance === "drop") {
// landing squash: the whole box+label drops in and lands with a
// contact squash on the deform wrapper; the label is counter-
// scaled to net identity inside the shared apply (type NEVER
// takes a non-uniform scale). Travel/duration derivation LOCKED:
// ≈1.9× box height into ~0.5s of power2.in.
gsap.set(label, { opacity: 1 }); // the label rides the drop
gsap.set(el, { opacity: 0 }); // hidden until the entrance
tl.set(el, { opacity: 1 }, at);
window.hwImpactSquash(tl, {
wrap: el.querySelector(".hw-bx-deform"),
moveTarget: el,
label: label,
travel: Math.round(el.offsetHeight * 1.9),
at: at,
dur: 0.5,
softness: 0.11, // UI-card tier
feel: "bouncy",
});
} else {
// "draw" — the shipped entrance, routed through hwDrawOn so
// sharp/spray textures compose (the mask clone animates; the
// visible texture dasharray never does)
window.hwDrawOn(tl, el.__hwApplied, at, 0.75);
tl.to(label, { opacity: 1, duration: 0.4, ease: "power2.out" }, at + 0.55);
}
window.hwBoilPose(tl, target + " .hw-bx-boil", cfg.boil, { seed: cfg.seed });
};
window.hwBoxOff = function (tl, target, at) {
tl.to(target, { opacity: 0, duration: 0.35, ease: "power2.in" }, at);
};
// ---- self-preview ----
window.hwBoxBuild("#hw-bx-demo", { seed: 3, label: "Europe" });
var tl = gsap.timeline({ paused: true });
window.hwBoxOn(tl, "#hw-bx-demo", 0.4);
window.hwBoxOff(tl, "#hw-bx-demo", 3.4);
tl.set("#hw-bx-root", { visibility: "hidden" }, 3.98);
window.__timelines["hw-box-label"] = tl;
})();
</script>
</body>
</html>
handwritten annotation overlay.