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feat: directory-tree hero + GSAP motion for structlint #26

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Merged
murilopmachado merged 1 commit into from
Aug 4, 2026
Merged

feat: directory-tree hero + GSAP motion for structlint #26

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247 changes: 186 additions & 61 deletions web/index.html
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Original file line number Diff line number Diff line change
@@ -1,3 +1,3 @@
<!doctype html>
<html lang="en" data-flavor="relay">
<head>
Expand Down Expand Up @@ -107,35 +107,59 @@
}
.btn-ghost:hover { border-color: color-mix(in srgb, var(--af-accent) 50%, transparent); }

/* ---- Live check demo ---- */
.feed-caption { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.6rem; font-size: 0.8rem; color: var(--af-text-muted); }
/* ---- Directory tree centerpiece ---- */
.diagram-caption { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.6rem; font-size: 0.8rem; color: var(--af-text-muted); }
.pulse-dot { position: relative; width: 8px; height: 8px; border-radius: 50%; background: var(--af-accent); flex: none; }
.pulse-dot::after {
content: ""; position: absolute; inset: 0; border-radius: 50%; background: var(--af-accent);
animation: pulse 2s ease-out infinite;
}
@keyframes pulse { 0% { opacity: 0.6; transform: scale(1); } 100% { opacity: 0; transform: scale(2.8); } }
#feed-window { box-shadow: 0 30px 60px -20px rgb(0 0 0 / 0.6); max-width: 100%; }
#feed-body { min-height: 15.5rem; max-height: 15.5rem; padding: 0.85rem 1rem; overflow: hidden; font-family: var(--af-font-mono); font-size: 0.78rem; }
.feed-line {
display: grid; grid-template-columns: auto minmax(0, 10.5rem) minmax(0, 1fr) minmax(0, 7rem); gap: 0.6rem; align-items: baseline;
padding: 0.3rem 0; color: var(--af-text-muted);
animation: feed-in 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.feed-line .title { overflow-wrap: anywhere; }
@keyframes feed-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }
.feed-line .sev { text-transform: none; font-size: 0.7rem; overflow-wrap: anywhere; }
.feed-line .title { color: var(--af-text); }
.feed-line .who { color: var(--af-text-muted); opacity: 0.75; text-align: right; overflow-wrap: anywhere; }
.feed-tone { width: 6px; height: 6px; border-radius: 50%; align-self: center; }
.feed-tone { width: 6px; height: 6px; border-radius: 50%; align-self: center; flex: none; }
.feed-tone-info { background: #22d3ee; }
.feed-tone-warn { background: #ffb000; }
.feed-tone-critical { background: var(--af-accent); box-shadow: 0 0 8px color-mix(in srgb, var(--af-accent) 60%, transparent); }
.feed-summary { color: var(--af-text-muted); }
.feed-summary .ok { color: #22d3ee; }
.feed-summary .bad { color: var(--af-accent); }

.tree-panel { padding: 1.35rem 1.4rem 1.15rem; box-shadow: 0 30px 60px -20px rgb(0 0 0 / 0.6); max-width: 100%; overflow-x: auto; }
.file-tree, .file-tree ul { list-style: none; margin: 0; padding: 0; }
.file-tree { font-family: var(--af-font-mono); font-size: 0.86rem; }
.t-row { display: flex; align-items: stretch; flex-wrap: wrap; min-height: 1.9rem; }
.t-row.t-root { min-height: 1.7rem; }
.t-rail, .t-elbow { position: relative; width: 1.05rem; flex: none; }
.t-vline {
position: absolute; left: 50%; top: 0; width: 1px; background: var(--af-line);
transform: translateX(-50%) scaleY(1); transform-origin: top;
}
.t-rail .t-vline, .t-tee .t-vline { height: 100%; }
.t-corner .t-vline { height: 50%; }
.t-hline {
position: absolute; left: 50%; top: 50%; height: 1px; width: 0.6rem; background: var(--af-line);
transform: scaleX(1); transform-origin: left;
}
.node {
align-self: center; display: inline-flex; align-items: center; padding: 0.12rem 0.5rem; margin: 0.18rem 0;
border-radius: 4px; white-space: nowrap; color: var(--af-text-muted);
}
.node-dir { color: var(--af-text); font-weight: 600; }
.node-file { color: var(--af-text-muted); }
.node-violation {
color: var(--af-text); font-weight: 600;
background: color-mix(in srgb, var(--af-accent) 14%, transparent);
border: 1px solid color-mix(in srgb, var(--af-accent) 55%, transparent);
}
.node-violation.is-pulsing { box-shadow: 0 0 0 4px color-mix(in srgb, var(--af-accent) 25%, transparent); }
.violation-flag {
align-self: center; flex-basis: 100%; margin: 0.1rem 0 0.2rem calc(1.05rem + 0.5rem);
display: inline-flex; align-items: center; gap: 0.35rem; font-size: 0.72rem; color: var(--af-text-muted);
overflow-wrap: anywhere;
}
.tree-verdict {
margin-top: 0.9rem; padding-top: 0.85rem; border-top: 1px solid var(--af-line);
font-family: var(--af-font-mono); font-size: 0.8rem; color: var(--af-text-muted);
display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap;
}
.tree-verdict strong { color: var(--af-accent); font-weight: 700; }
@media (prefers-reduced-motion: reduce) {
.feed-line { animation: none; }
.pulse-dot::after { animation: none; opacity: 0; }
}

Expand Down Expand Up @@ -200,8 +224,9 @@
@media (max-width: 480px) {
.topbar .wrap { flex-wrap: wrap; row-gap: 0.6rem; padding-top: 0.75rem; padding-bottom: 0.75rem; min-height: 0; }
.topbar { min-height: 0; }
.feed-line { grid-template-columns: auto minmax(0, 1fr); }
.feed-line .sev, .feed-line .who { display: none; }
.file-tree { font-size: 0.76rem; }
.t-rail, .t-elbow { width: 0.85rem; }
.violation-flag { margin-left: calc(0.85rem + 0.4rem); }
}
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
</style>
Expand Down Expand Up @@ -242,13 +267,46 @@
</div>

<div>
<div class="feed-caption"><span class="pulse-dot"></span> Live demo (simulated output, not a real run)</div>
<div class="terminal-window" id="feed-window">
<div class="terminal-header">
<span class="dot dot-red"></span><span class="dot dot-yellow"></span><span class="dot dot-green"></span>
<span style="margin-left: 0.5rem; color: var(--af-text-muted);">structlint validate</span>
</div>
<div id="feed-body"></div>
<div class="diagram-caption"><span class="pulse-dot" aria-hidden="true"></span> Sample project, one <code>.structlint.yaml</code> run</div>
<div class="glass-card tree-panel">
<ul class="file-tree" aria-label="Sample directory tree for a Go project, with one file flagged as a violation">
<li class="t-row t-root">
<span class="node node-dir">myapp/</span>
</li>
<li class="t-row">
<span class="t-elbow t-tee" aria-hidden="true"><span class="t-vline"></span><span class="t-hline"></span></span>
<span class="node node-dir">cmd/</span>
</li>
<li class="t-row">
<span class="t-rail" aria-hidden="true"><span class="t-vline"></span></span>
<span class="t-elbow t-corner" aria-hidden="true"><span class="t-vline"></span><span class="t-hline"></span></span>
<span class="node node-file">main.go</span>
</li>
<li class="t-row">
<span class="t-elbow t-tee" aria-hidden="true"><span class="t-vline"></span><span class="t-hline"></span></span>
<span class="node node-dir">internal/</span>
</li>
<li class="t-row">
<span class="t-rail" aria-hidden="true"><span class="t-vline"></span></span>
<span class="t-elbow t-tee" aria-hidden="true"><span class="t-vline"></span><span class="t-hline"></span></span>
<span class="node node-dir">domain/</span>
</li>
<li class="t-row">
<span class="t-rail" aria-hidden="true"><span class="t-vline"></span></span>
<span class="t-elbow t-corner" aria-hidden="true"><span class="t-vline"></span><span class="t-hline"></span></span>
<span class="node node-dir">db/</span>
</li>
<li class="t-row">
<span class="t-elbow t-tee" aria-hidden="true"><span class="t-vline"></span><span class="t-hline"></span></span>
<span class="node node-file">go.mod</span>
</li>
<li class="t-row">
<span class="t-elbow t-corner" aria-hidden="true"><span class="t-vline"></span><span class="t-hline"></span></span>
<span class="node node-file node-violation" title="disallowed_file_pattern: matches *.env*">.env.local</span>
<span class="violation-flag"><span class="feed-tone feed-tone-critical" aria-hidden="true"></span>disallowed_file_pattern</span>
</li>
</ul>
<div class="tree-verdict"><strong aria-hidden="true">&#10007;</strong> 1 violation found &mdash; <code>disallowed_file_pattern</code> on <code>.env.local</code></div>
</div>
</div>
</div>
Expand Down Expand Up @@ -400,43 +458,110 @@
<a href="https://axeforging.github.io/gumshoe/">gumshoe</a>.</p>
</footer>

<script src="https://unpkg.com/gsap@3.12.5/dist/gsap.min.js"></script>
<script src="https://unpkg.com/gsap@3.12.5/dist/ScrollTrigger.min.js"></script>
<script>
(function () {
var FINDINGS = [
{ code: "unallowed_directory", tone: "info", title: "Directory not in allowed list: tmp", who: "tmp/" },
{ code: "disallowed_file_pattern", tone: "warn", title: "Disallowed file naming pattern found: .env.local", who: ".env.local" },
{ code: "disallowed_file_pattern", tone: "warn", title: "Disallowed file naming pattern found: debug.log", who: "debug.log" },
{ code: "placement_violation", tone: "warn", title: "expected under migrations/**", who: "scripts/2024_add_users.sql" },
{ code: "missing_required_file", tone: "warn", title: "No file matching go.mod found", who: "(root)" },
{ code: "boundary_violation", tone: "critical", title: "internal/domain imports internal/db", who: "internal/domain/order.go" }
];

var body = document.getElementById("feed-body");
var reduced = window.matchMedia("(prefers-reduced-motion: reduce)").matches;
var MAX_LINES = 6;
var i = 0;

function addLine() {
var f = FINDINGS[i % FINDINGS.length];
i++;
var line = document.createElement("div");
line.className = "feed-line";
line.innerHTML =
'<span class="feed-tone feed-tone-' + f.tone + '"></span>' +
'<span class="sev" style="color: var(--af-text-muted);">' + f.code + '</span>' +
'<span class="title">' + f.title + '</span>' +
'<span class="who">' + f.who + '</span>';
body.appendChild(line);
while (body.children.length > MAX_LINES) {
body.removeChild(body.firstChild);
}
}
// No GSAP (CDN blocked/offline)? Nothing in the CSS starts hidden, so the
// page is already fully visible and fully usable -- no-op fallback.
if (typeof gsap === "undefined") return;

for (var seed = 0; seed < 4; seed++) addLine();
gsap.registerPlugin(ScrollTrigger);

if (!reduced) {
setInterval(addLine, 2400);
}
var mm = gsap.matchMedia();

mm.add(
{
reduce: "(prefers-reduced-motion: reduce)",
noPreference: "(prefers-reduced-motion: no-preference)"
},
function (context) {
var reduce = context.conditions.reduce;

var heroTargets = [".kicker", ".hero h1", ".hero p.lede", ".hero .ctas", ".tree-panel"];
var vlines = gsap.utils.toArray(".t-vline");
var hlines = gsap.utils.toArray(".t-hline");
var nodes = gsap.utils.toArray(".file-tree .node");
var verdict = document.querySelector(".tree-verdict");
var violation = document.querySelector(".node-violation");

var sectionGroups = gsap.utils.toArray("section[id]").map(function (sec) {
var items = sec.querySelectorAll(".feature-card, .guide-step, .usecase-card, .install-step, tr");
var targets = items.length ? gsap.utils.toArray(items) : [sec.querySelector(".section-head")];
return { sec: sec, targets: targets };
});

if (reduce) {
// Hard a11y requirement: land every element in its final visible
// state immediately, with no animation, no matter what state
// it would otherwise start from.
gsap.set(heroTargets, { autoAlpha: 1, y: 0, clearProps: "transform" });
gsap.set(vlines, { scaleY: 1 });
gsap.set(hlines, { scaleX: 1 });
gsap.set(nodes, { autoAlpha: 1, x: 0 });
if (verdict) gsap.set(verdict, { autoAlpha: 1, y: 0 });
sectionGroups.forEach(function (g) { gsap.set(g.targets, { autoAlpha: 1, y: 0 }); });
return;
}

// ---- Hero entrance: kicker -> h1 -> lede -> ctas -> tree panel ----
var heroTl = gsap.timeline({ defaults: { ease: "power3.out" } });
heroTl
.from(".kicker", { autoAlpha: 0, y: 14, duration: 0.5 })
.from(".hero h1", { autoAlpha: 0, y: 18, duration: 0.6 }, "-=0.32")
.from(".hero p.lede", { autoAlpha: 0, y: 14, duration: 0.5 }, "-=0.34")
.from(".hero .ctas", { autoAlpha: 0, y: 12, duration: 0.45 }, "-=0.3")
.from(".tree-panel", { autoAlpha: 0, y: 20, duration: 0.6 }, "-=0.25");

// ---- Tree draws in top-down: each branch extends, then its node
// fades in, row by row; the flagged node pulses once revealed ----
gsap.set(vlines, { scaleY: 0 });
gsap.set(hlines, { scaleX: 0 });
gsap.set(nodes, { autoAlpha: 0, x: -6 });
if (verdict) gsap.set(verdict, { autoAlpha: 0, y: 8 });

var rows = gsap.utils.toArray(".t-row");
var treeTl = gsap.timeline();
rows.forEach(function (row, i) {
var v = row.querySelectorAll(".t-vline");
var h = row.querySelectorAll(".t-hline");
var node = row.querySelector(".node");
var t = i * 0.13;
if (v.length) treeTl.to(v, { scaleY: 1, duration: 0.22, ease: "power1.out" }, t);
if (h.length) treeTl.to(h, { scaleX: 1, duration: 0.14, ease: "power1.out" }, t + 0.16);
if (node) treeTl.to(node, { autoAlpha: 1, x: 0, duration: 0.2, ease: "power2.out" }, t + 0.18);
});
if (violation) {
treeTl.to(violation, {
scale: 1.1,
duration: 0.2,
ease: "power2.out",
yoyo: true,
repeat: 1,
transformOrigin: "center",
onStart: function () { violation.classList.add("is-pulsing"); },
onComplete: function () { violation.classList.remove("is-pulsing"); }
}, "+=0.1");
}
if (verdict) treeTl.to(verdict, { autoAlpha: 1, y: 0, duration: 0.35, ease: "power2.out" }, "-=0.1");

heroTl.add(treeTl, "-=0.2");

// ---- Scroll-triggered reveals, once per section, staggered across
// the cards within it ----
sectionGroups.forEach(function (g) {
gsap.set(g.targets, { autoAlpha: 0, y: 24 });
ScrollTrigger.create({
trigger: g.sec,
start: "top 82%",
once: true,
onEnter: function () {
gsap.to(g.targets, { autoAlpha: 1, y: 0, duration: 0.6, ease: "power2.out", stagger: 0.08 });
}
});
});
}
);
})();
</script>
</body>
Expand Down
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