authorgravatar for me@t3.ggTheo Browne <me@t3.gg> 2026-09-06 19:09:22-07:00
committergravatar for noreply@github.comGitHub <noreply@github.com> 2026-09-07 02:09:22+00:00
logb22646c312a04033ac9da97d663422b83dbe7d0f
treeaa18566b98a21617c1f74e450a9c577b669c0574
parentbd280de80a5a39059918757c09af5ae9b7973a97
signature Signed by PGP key B5690EEEBB952194

fix(marketing): bring back the endorsement marquee (#10455)

Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>

3 files changed, 194 insertions(+), 231 deletions(-)

apps/marketing/src/lib/homeMotion.test.ts+15-101
......@@ -6,17 +6,8 @@ class ElementStub extends EventTarget {
66 properties = new Map<string, string>();
77 style = { setProperty: (name: string, value: string) => this.properties.set(name, value) };
88 children: ElementStub[] = [];
9 scrollLeft = 0;
10 scrollWidth = 1_200;
11 clientWidth = 400;
12 matches = () => false;
13 contains = (target: EventTarget | null) =>
14 target === this || (target instanceof ElementStub && this.children.includes(target));
159 querySelectorAll = () => this.children;
1610 getBoundingClientRect = vi.fn(() => ({ left: 0, top: 0, width: 400, height: 600 }));
17 scrollTo = vi.fn((options: ScrollToOptions) => {
18 this.scrollLeft = options.left ?? this.scrollLeft;
19 });
2011}
2112
2213let observers: ObserverStub[] = [];
......@@ -34,29 +25,25 @@ class ObserverStub {
3425 }
3526}
3627
37let page = Object.assign(new EventTarget(), { visibilityState: "visible", activeElement: null });
38let viewport = new EventTarget();
28let page = Object.assign(new EventTarget(), { visibilityState: "visible" });
3929let reduced = Object.assign(new EventTarget(), { matches: false });
4030let fine = Object.assign(new EventTarget(), { matches: true });
4131let frames = new Map<number, FrameRequestCallback>();
4232let dispose: (() => void) | undefined;
4333
4434beforeEach(() => {
45 vi.useFakeTimers({ toFake: ["setTimeout", "clearTimeout"] });
4635 observers = [];
4736 frames = new Map();
48 page = Object.assign(new EventTarget(), { visibilityState: "visible", activeElement: null });
49 viewport = new EventTarget();
37 page = Object.assign(new EventTarget(), { visibilityState: "visible" });
5038 reduced = Object.assign(new EventTarget(), { matches: false });
5139 fine = Object.assign(new EventTarget(), { matches: true });
5240 vi.stubGlobal("document", page);
5341 vi.stubGlobal(
5442 "window",
55 Object.assign(viewport, {
43 Object.assign(new EventTarget(), {
5644 matchMedia: (query: string) => (query.includes("reduced-motion") ? reduced : fine),
5745 }),
5846 );
59 vi.stubGlobal("Node", ElementStub);
6047 vi.stubGlobal("IntersectionObserver", ObserverStub);
6148 let frameId = 0;
6249 vi.stubGlobal("requestAnimationFrame", (callback: FrameRequestCallback) => {
......@@ -69,7 +56,6 @@ beforeEach(() => {
6956afterEach(() => {
7057 dispose?.();
7158 dispose = undefined;
72 vi.useRealTimers();
7359 vi.unstubAllGlobals();
7460});
7561
......@@ -79,12 +65,12 @@ function fixture() {
7965 const mark = new ElementStub();
8066 const otherMark = new ElementStub();
8167 field.children = [mark, otherMark];
82 const endorsements = new ElementStub();
68 const track = new ElementStub();
8369 const caret = new ElementStub();
84 dispose = startHomeMotion({ hero, field, endorsements, caret } as unknown as Parameters<
70 dispose = startHomeMotion({ hero, field, tracks: [track], caret } as unknown as Parameters<
8571 typeof startHomeMotion
8672 >[0]);
87 return { hero, field, mark, otherMark, endorsements, caret, observer: observers[0]! };
73 return { hero, field, mark, otherMark, track, caret, observer: observers[0]! };
8874}
8975
9076function movePointer(hero: ElementStub, x = 400, y = 600) {
......@@ -92,13 +78,16 @@ function movePointer(hero: ElementStub, x = 400, y = 600) {
9278}
9379
9480describe("homepage motion", () => {
95 it("gates each mark and caret and batches pointer input into one frame", () => {
96 const { hero, field, mark, otherMark, caret, observer } = fixture();
81 it("gates each mark, marquee track, and caret and batches pointer input into one frame", () => {
82 const { hero, field, mark, otherMark, track, caret, observer } = fixture();
9783 expect(mark.properties.get("--home-motion-state")).toBe("paused");
84 expect(track.properties.get("--home-motion-state")).toBe("paused");
9885 observer.report(mark, true);
86 observer.report(track, true);
9987 observer.report(caret, true);
10088 expect(mark.properties.get("--home-motion-state")).toBe("running");
10189 expect(otherMark.properties.get("--home-motion-state")).toBe("paused");
90 expect(track.properties.get("--home-motion-state")).toBe("running");
10291 expect(caret.properties.get("--home-motion-state")).toBe("running");
10392
10493 movePointer(hero, 100, 100);
......@@ -117,6 +106,7 @@ describe("homepage motion", () => {
117106 expect(frames.size).toBe(0);
118107 expect(field.properties.get("--px")).toBe("0px");
119108 expect(mark.properties.get("--home-motion-state")).toBe("paused");
109 expect(track.properties.get("--home-motion-state")).toBe("paused");
120110 expect(caret.properties.get("--home-motion-state")).toBe("paused");
121111 page.visibilityState = "visible";
122112 page.dispatchEvent(new Event("visibilitychange"));
......@@ -133,86 +123,10 @@ describe("homepage motion", () => {
133123 expect(mark.properties.get("--home-motion-state")).toBe("running");
134124 });
135125
136 it("pages every eight seconds, reverses at the end, and has no timer without overflow", () => {
137 const { endorsements, observer } = fixture();
138 expect(vi.getTimerCount()).toBe(0);
139 observer.report(endorsements, true);
140 vi.advanceTimersByTime(7_999);
141 expect(endorsements.scrollTo).not.toHaveBeenCalled();
142 vi.advanceTimersByTime(16_001);
143 expect(endorsements.scrollTo.mock.calls.map(([options]) => options.left)).toEqual([
144 400, 800, 400,
145 ]);
146 expect(
147 endorsements.scrollTo.mock.calls.every(([options]) => options.behavior === "smooth"),
148 ).toBe(true);
149
150 endorsements.clientWidth = endorsements.scrollWidth;
151 viewport.dispatchEvent(new Event("resize"));
152 expect(vi.getTimerCount()).toBe(0);
153 expect(endorsements.scrollTo).toHaveBeenLastCalledWith({ left: 400, behavior: "instant" });
154 endorsements.clientWidth = 400;
155 viewport.dispatchEvent(new Event("resize"));
156 expect(vi.getTimerCount()).toBe(1);
157 });
158
159 it("pauses paging for hover, focus, hidden content, and reduced motion", () => {
160 const { endorsements, observer } = fixture();
161 observer.report(endorsements, true);
162 const changeVisibility = (visible: boolean) => {
163 page.visibilityState = visible ? "visible" : "hidden";
164 page.dispatchEvent(new Event("visibilitychange"));
165 };
166 const changeMotion = (matches: boolean) => {
167 reduced.matches = matches;
168 reduced.dispatchEvent(new Event("change"));
169 };
170 const pauses = [
171 [
172 () => endorsements.dispatchEvent(new Event("pointerenter")),
173 () => endorsements.dispatchEvent(new Event("pointerleave")),
174 ],
175 [
176 () => endorsements.dispatchEvent(new Event("focusin")),
177 () =>
178 endorsements.dispatchEvent(Object.assign(new Event("focusout"), { relatedTarget: null })),
179 ],
180 [() => changeVisibility(false), () => changeVisibility(true)],
181 [() => observer.report(endorsements, false), () => observer.report(endorsements, true)],
182 [() => changeMotion(true), () => changeMotion(false)],
183 ] as const;
184 for (const [pause, resume] of pauses) {
185 pause();
186 expect(vi.getTimerCount()).toBe(0);
187 vi.advanceTimersByTime(16_000);
188 resume();
189 expect(vi.getTimerCount()).toBe(1);
190 }
191 expect(endorsements.scrollTo).not.toHaveBeenCalled();
192 vi.advanceTimersByTime(8_000);
193 expect(endorsements.scrollTo).toHaveBeenCalledWith({ left: 400, behavior: "smooth" });
194 endorsements.dispatchEvent(new Event("pointerenter"));
195 expect(endorsements.scrollTo).toHaveBeenLastCalledWith({ left: 400, behavior: "instant" });
196 expect(vi.getTimerCount()).toBe(0);
197 });
198
199 it.each(["wheel", "pointerdown", "keydown"])("hands control to the user after %s", (event) => {
200 const { endorsements, observer } = fixture();
201 observer.report(endorsements, true);
202 endorsements.dispatchEvent(new Event(event));
203 observer.report(endorsements, false);
204 observer.report(endorsements, true);
205 endorsements.dispatchEvent(new Event("pointerleave"));
206 viewport.dispatchEvent(new Event("resize"));
207 vi.advanceTimersByTime(60_000);
208 expect(vi.getTimerCount()).toBe(0);
209 expect(endorsements.scrollTo).not.toHaveBeenCalled();
210 });
211
212126 it("cancels pending work and ignores events after cleanup", () => {
213 const { hero, mark, endorsements, observer } = fixture();
127 const { hero, mark, track, observer } = fixture();
214128 observer.report(mark, true);
215 observer.report(endorsements, true);
129 observer.report(track, true);
216130 movePointer(hero);
217131 dispose?.();
218132 observer.report(mark, true);
......@@ -220,7 +134,7 @@ describe("homepage motion", () => {
220134 reduced.dispatchEvent(new Event("change"));
221135 expect(observer.disconnect).toHaveBeenCalledTimes(1);
222136 expect(frames.size).toBe(0);
223 expect(vi.getTimerCount()).toBe(0);
224137 expect(mark.properties.get("--home-motion-state")).toBe("paused");
138 expect(track.properties.get("--home-motion-state")).toBe("paused");
225139 });
226140});
apps/marketing/src/lib/homeMotion.ts+7-88
......@@ -1,30 +1,25 @@
1/** Runs homepage motion only while its content is visible. Manual scrolling stops paging. */
1/** Runs homepage motion (marquee, mark drift, caret, parallax) only while its content is visible. */
22export function startHomeMotion({
33 hero,
44 field,
5 endorsements,
5 tracks,
66 caret,
77}: {
88 hero: HTMLElement;
99 field: HTMLElement;
10 endorsements: HTMLElement;
10 tracks: HTMLElement[];
1111 caret: HTMLElement;
1212}) {
1313 if (typeof IntersectionObserver === "undefined") return () => {};
1414
1515 const marks = Array.from(field.querySelectorAll<HTMLElement>(".hero-float-mark"));
16 const gated = [...marks, ...tracks, caret];
1617 const visible = new Set<Element>();
1718 const reducedMotion = window.matchMedia("(prefers-reduced-motion: reduce)");
1819 const finePointer = window.matchMedia("(pointer: fine)");
1920 const events = new AbortController();
2021 const eventOptions = { signal: events.signal };
2122 let disposed = false;
22 let hovered = endorsements.matches(":hover");
23 let focused = endorsements.contains(document.activeElement);
24 let userControlled = false;
25 let direction = 1;
26 let automaticScroll = false;
27 let pageTimer: ReturnType<typeof setTimeout> | undefined;
2823 let pointerFrame: number | undefined;
2924 let pointer: { x: number; y: number } | null = null;
3025
......@@ -34,12 +29,6 @@ export function startHomeMotion({
3429 document.visibilityState === "visible" &&
3530 !reducedMotion.matches;
3631 const canParallax = () => finePointer.matches && marks.some(canMove);
37 const canPage = () =>
38 canMove(endorsements) &&
39 !hovered &&
40 !focused &&
41 !userControlled &&
42 endorsements.scrollWidth > endorsements.clientWidth;
4332
4433 function resetPointer() {
4534 if (pointerFrame !== undefined) cancelAnimationFrame(pointerFrame);
......@@ -49,43 +38,13 @@ export function startHomeMotion({
4938 field.style.setProperty("--py", "0px");
5039 }
5140
52 function updatePaging() {
53 if (canPage()) {
54 pageTimer ??= setTimeout(advancePage, 8_000);
55 return;
56 }
57 if (pageTimer !== undefined) clearTimeout(pageTimer);
58 pageTimer = undefined;
59 if (automaticScroll) {
60 automaticScroll = false;
61 endorsements.scrollTo({ left: endorsements.scrollLeft, behavior: "instant" });
62 }
63 }
64
65 function advancePage() {
66 pageTimer = undefined;
67 if (!canPage()) return;
68 const end = endorsements.scrollWidth - endorsements.clientWidth;
69 const current = endorsements.scrollLeft;
70 if (current >= end - 1) direction = -1;
71 else if (current <= 1) direction = 1;
72 automaticScroll = true;
73 endorsements.scrollTo({
74 left: Math.max(0, Math.min(end, current + direction * endorsements.clientWidth)),
75 behavior: "smooth",
76 });
77 updatePaging();
78 }
79
8041 function update() {
81 for (const mark of marks) {
82 mark.style.setProperty("--home-motion-state", canMove(mark) ? "running" : "paused");
42 for (const element of gated) {
43 element.style.setProperty("--home-motion-state", canMove(element) ? "running" : "paused");
8344 }
84 caret.style.setProperty("--home-motion-state", canMove(caret) ? "running" : "paused");
8545 const parallax = canParallax();
8646 field.style.setProperty("--parallax-duration", parallax ? "0.7s" : "0s");
8747 if (!parallax) resetPointer();
88 updatePaging();
8948 }
9049
9150 const observer = new IntersectionObserver((entries) => {
......@@ -96,7 +55,7 @@ export function startHomeMotion({
9655 }
9756 update();
9857 });
99 for (const element of [...marks, endorsements, caret]) observer.observe(element);
58 for (const element of gated) observer.observe(element);
10059
10160 hero.addEventListener(
10261 "pointermove",
......@@ -121,47 +80,7 @@ export function startHomeMotion({
12180 eventOptions,
12281 );
12382 hero.addEventListener("pointerleave", resetPointer, eventOptions);
124 endorsements.addEventListener(
125 "pointerenter",
126 () => {
127 hovered = true;
128 updatePaging();
129 },
130 eventOptions,
131 );
132 endorsements.addEventListener(
133 "pointerleave",
134 () => {
135 hovered = false;
136 updatePaging();
137 },
138 eventOptions,
139 );
140 endorsements.addEventListener(
141 "focusin",
142 () => {
143 focused = true;
144 updatePaging();
145 },
146 eventOptions,
147 );
148 endorsements.addEventListener(
149 "focusout",
150 (event) => {
151 focused = event.relatedTarget instanceof Node && endorsements.contains(event.relatedTarget);
152 updatePaging();
153 },
154 eventOptions,
155 );
156 const takeControl = () => {
157 userControlled = true;
158 updatePaging();
159 };
160 endorsements.addEventListener("wheel", takeControl, { ...eventOptions, passive: true });
161 endorsements.addEventListener("pointerdown", takeControl, eventOptions);
162 endorsements.addEventListener("keydown", takeControl, eventOptions);
16383 document.addEventListener("visibilitychange", update, eventOptions);
164 window.addEventListener("resize", update, eventOptions);
16584 reducedMotion.addEventListener("change", update, eventOptions);
16685 finePointer.addEventListener("change", update, eventOptions);
16786 update();
apps/marketing/src/pages/index.astro+172-42
......@@ -17,6 +17,16 @@ const screenshot = await getImage({
1717 quality: 90,
1818});
1919
20const desktopEndorsementRows = [
21 tweets.filter((_, index) => index % 2 === 0),
22 tweets.filter((_, index) => index % 2 === 1),
23];
24
25const mobileEndorsementRows = [
26 tweets.filter((_, index) => index % 3 === 0),
27 tweets.filter((_, index) => index % 3 === 1),
28 tweets.filter((_, index) => index % 3 === 2),
29];
2030---
2131
2232<Layout>
......@@ -111,29 +121,80 @@ const screenshot = await getImage({
111121 </div>
112122 </div>
113123
114 <div class="endorsement-carousel" role="region" aria-label="Developer endorsements" tabindex="0">
115 {tweets.map((tweet) => (
116 <a
117 class="endorsement-card"
118 href={tweet.link}
119 target="_blank"
120 rel="noopener noreferrer"
121 aria-label={`Read ${tweet.handle}'s post on X`}
122 >
123 <div class="endorsement-author">
124 <img
125 src={`/pfps/${tweet.handle}.webp`}
126 alt=""
127 width="28"
128 height="28"
129 loading="lazy"
130 decoding="async"
131 />
132 <div class="endorsement-handle">@{tweet.handle}</div>
133 </div>
134 <p>{tweet.excerpt ?? tweet.content}</p>
135 </a>
136 ))}
124 <div class="endorsement-carousel endorsement-carousel--desktop" aria-label="Developer endorsements">
125 {
126 desktopEndorsementRows.map((row, rowIndex) => (
127 <div class:list={["endorsement-row", rowIndex === 1 && "is-reverse"]}>
128 <div class="endorsement-track">
129 {[0, 1].map((groupIndex) => (
130 <div class="endorsement-track-group" aria-hidden={groupIndex === 1 ? "true" : undefined}>
131 {row.map((tweet) => (
132 <a
133 class="endorsement-card"
134 href={tweet.link}
135 target="_blank"
136 rel="noopener noreferrer"
137 aria-label={`Read ${tweet.handle}'s post on X`}
138 tabindex={groupIndex === 1 ? "-1" : undefined}
139 >
140 <div class="endorsement-author">
141 <img
142 src={`/pfps/${tweet.handle}.webp`}
143 alt=""
144 width="28"
145 height="28"
146 loading="lazy"
147 decoding="async"
148 />
149 <div class="endorsement-handle">@{tweet.handle}</div>
150 </div>
151 <p>{tweet.excerpt ?? tweet.content}</p>
152 </a>
153 ))}
154 </div>
155 ))}
156 </div>
157 </div>
158 ))
159 }
160 </div>
161
162 <div class="endorsement-carousel endorsement-carousel--mobile" aria-label="Developer endorsements">
163 {
164 mobileEndorsementRows.map((row, rowIndex) => (
165 <div class:list={["endorsement-row", rowIndex === 1 && "is-reverse"]}>
166 <div class="endorsement-track">
167 {[0, 1].map((groupIndex) => (
168 <div class="endorsement-track-group" aria-hidden={groupIndex === 1 ? "true" : undefined}>
169 {row.map((tweet) => (
170 <a
171 class="endorsement-card"
172 href={tweet.link}
173 target="_blank"
174 rel="noopener noreferrer"
175 aria-label={`Read ${tweet.handle}'s post on X`}
176 tabindex={groupIndex === 1 ? "-1" : undefined}
177 >
178 <div class="endorsement-author">
179 <img
180 src={`/pfps/${tweet.handle}.webp`}
181 alt=""
182 width="28"
183 height="28"
184 loading="lazy"
185 decoding="async"
186 />
187 <div class="endorsement-handle">@{tweet.handle}</div>
188 </div>
189 <p>{tweet.excerpt ?? tweet.content}</p>
190 </a>
191 ))}
192 </div>
193 ))}
194 </div>
195 </div>
196 ))
197 }
137198 </div>
138199 </section>
139200
......@@ -427,10 +488,10 @@ const screenshot = await getImage({
427488
428489 const hero = document.querySelector<HTMLElement>(".hero");
429490 const field = document.querySelector<HTMLElement>(".hero-float");
430 const endorsements = document.querySelector<HTMLElement>(".endorsement-carousel");
491 const tracks = Array.from(document.querySelectorAll<HTMLElement>(".endorsement-track"));
431492 const caret = document.querySelector<HTMLElement>(".caret");
432 if (hero && field && endorsements && caret) {
433 startHomeMotion({ hero, field, endorsements, caret });
493 if (hero && field && caret) {
494 startHomeMotion({ hero, field, tracks, caret });
434495 }
435496</script>
436497
......@@ -822,23 +883,81 @@ const screenshot = await getImage({
822883 letter-spacing: -0.005em;
823884 }
824885
886 /* Two marquee rows scrolling in opposite directions. Each track holds the
887 row twice so a -50% translate loops seamlessly. The animation only runs
888 while a track is on screen (see homeMotion), and pauses on hover/focus. */
825889 .endorsement-carousel {
826 display: grid;
827 grid-auto-flow: column;
828 grid-template-rows: repeat(2, 132px);
829 grid-auto-columns: clamp(264px, 22vw, 308px);
890 position: relative;
891 display: flex;
892 flex-direction: column;
830893 gap: 12px;
831 overflow-x: auto;
832 overscroll-behavior-x: contain;
833 /* Percentages resolve against this element's own box rather than the
834 viewport, so the first card lines up with the heading's .container edge
835 even when a classic scrollbar makes 100vw wider than the layout. */
836 padding: 4px max(32px, calc((100% - 1240px) / 2 + 32px));
837 scroll-padding-inline: max(32px, calc((100% - 1240px) / 2 + 32px));
894 }
895
896 .endorsement-carousel--mobile {
897 display: none;
898 }
899
900 .endorsement-carousel::before,
901 .endorsement-carousel::after {
902 content: "";
903 position: absolute;
904 top: 0;
905 bottom: 0;
906 z-index: 2;
907 width: max(48px, calc((100vw - 1240px) / 2 + 56px));
908 pointer-events: none;
909 }
910
911 .endorsement-carousel::before {
912 left: 0;
913 background: linear-gradient(90deg, var(--bg), transparent);
914 }
915
916 .endorsement-carousel::after {
917 right: 0;
918 background: linear-gradient(270deg, var(--bg), transparent);
919 }
920
921 .endorsement-row {
922 overflow: hidden;
923 }
924
925 .endorsement-track {
926 width: max-content;
927 display: flex;
928 animation: endorsementMarquee 76s linear infinite;
929 animation-play-state: var(--home-motion-state, paused);
930 will-change: transform;
931 }
932
933 .endorsement-track-group {
934 display: flex;
935 gap: 12px;
936 padding-right: 12px;
937 }
938
939 .endorsement-row.is-reverse .endorsement-track {
940 animation-direction: reverse;
941 animation-duration: 84s;
942 }
943
944 .endorsement-carousel:hover .endorsement-track,
945 .endorsement-carousel:focus-within .endorsement-track {
946 animation-play-state: paused;
947 }
948
949 @media (prefers-reduced-motion: reduce) {
950 .endorsement-track { animation: none; }
951 }
952
953 @keyframes endorsementMarquee {
954 from { transform: translateX(0); }
955 to { transform: translateX(-50%); }
838956 }
839957
840958 .endorsement-card {
841959 position: relative;
960 width: clamp(264px, 22vw, 308px);
842961 height: 132px;
843962 padding: 14px 16px;
844963 display: flex;
......@@ -1175,13 +1294,24 @@ const screenshot = await getImage({
11751294 .endorsements-head {
11761295 margin-bottom: 40px;
11771296 }
1178 .endorsement-carousel {
1179 grid-template-rows: repeat(3, 132px);
1180 grid-auto-columns: 268px;
1181 padding-inline: 20px;
1182 scroll-padding-inline: 20px;
1297 .endorsement-carousel--desktop {
1298 display: none;
1299 }
1300 .endorsement-carousel--mobile {
1301 display: flex;
1302 }
1303 .endorsement-carousel::before,
1304 .endorsement-carousel::after {
1305 width: 28px;
1306 }
1307 .endorsement-track {
1308 animation-duration: 68s;
1309 }
1310 .endorsement-row.is-reverse .endorsement-track {
1311 animation-duration: 76s;
11831312 }
11841313 .endorsement-card {
1314 width: 268px;
11851315 padding: 14px;
11861316 }
11871317 .endorsement-card p {