Animated loader · mimo-v2.5

Let me build the file. Check directory first.

Build index.html with a morphing blob grid (rounded shapes) and five dots row, GSAP timeline ~4.5s repeat -1.

Design: a group of 5 rounded squares in a row that morph scale/position/border-radius, plus five dots below with staggered y motion and opacity. Use timeline with repeat: -1 and yoyo? No — repeat without abrupt jump means the timeline should end near its start state. Better: timeline ends at the same state it started, so repeat is seamless.

Let me choreograph: 5 shapes in a row, each animates through a sequence: shape1 grows into a big rounded rect while others shrink, positions shift. Use a timeline of 4.5s composed of steps, and ensure final state = initial state.

Simple approach: for each shape i, animate x, scale, borderRadius with staggered keyframes, but return to base at the end.

I'll write it carefully.

Shapes: container 5 shapes each 64px, gap. Timeline:

tl.to each shape with stagger "each0.12" doing a wave: scale up to 1.5, borderRadius50%, y -20, then back. Repeat a few times with different colors. Then final segment returns everything to initial — since each wave returns to base, whole timeline loops seamlessly.

Also row of dots: 5 dots, yoyo-ish bounce with stagger, opacity — same pattern returns to base.

Use gsap.timeline({repeat:-1, defaults:{ease:'power2.inOut'}}).

Colors: cycle hue.

Let me write it.

Shape animation: use keyframes for multi-step.

For each shape, sequence over the loop (total duration e.g. 4.8s):

tl.to(shape, {keyframes: [...]}, position)

Maybe simpler: build per-shape with a wave function at staggered times.

Plan total 4.8s:
- Phase A (0–2.4s): wave through shapes, each shape does: scale 1→1.6, borderRadius 18→50%, y 0→-26, color shift, then back. Duration 1.2s each with overlap stagger 0.24.
- Phase B (1.2–3.6s): row morphs: shapes move outward to spread, alternate up/down, radius to 30px, sizes vary (some0.7, some 1.3). Then back.
- Dots: bounce throughout entire loop, yoyo with stagger; since dot motion with yoyo and repeat count matched to loop gives seamless? Using yoyo within main timeline is fine: tl.to(dots,{y:-14, opacity:1, stagger:0.1, yoyo:true, repeat:1}) — repeat1 yoyo returns to start.

Total duration = max end. Ensure final states equal initial.

Let me just write it and check via browser by sampling gsap states at times using tl.time(t) and reading computed styles.

Also add a subtle "loading bar"? Not required. Keep to spec.

Controls: Pause/Resume toggling tl.pause()/tl.resume(), Restart tl.restart() (or tl.progress(0).play()).

Write file.

Now verify in the browser: sample timeline at several times, check pause/resume/restart.

Note: total timeline duration — the label tween at 0 with duration 1.2 yoyo repeat1 ends at 2.4. Phase 3 last shape starts at 2.8+0.48=3.28, ends 4.38. So total duration ~4.38s, within 3–6s. Good.

Check that end state == start state: shapes return to scale 1, y0, x 0, radius 18px. Dots return to y0, opacity .45. Label returns to 1. Good.

But wait — keyframes with multiple properties: in GSAP, keyframes with duration per keyframe works. Also overlapping tweens on same element at different times is fine.

However, Phase 2 starts at 1.4s while Phase 1 for shape 4 ends at 0.96+1.1=2.06... shape i=4 starts at 0.96, ends 2.06. Phase 2 for shape 0 starts at 1.4 — different shapes so no conflict. Phase 2 shape 4 starts at 1.4+0.56=1.96, shape1 phase1 ends at 0.24+1.1=1.34 — okay. Actually Phase2 shape i starts1.4+i*0.14; Phase1 shape i ends at i*0.24+1.1. For i=4: phase1 ends 2.06, phase2 starts 1.96 → overlap of 0.1s on the same element. Overlapping tweens on same properties could cause a slight jump/conflict. GSAP overwrite is off by default, so both tweens animate simultaneously — the later one wins? Actually both apply, last one rendered wins in GSAP 3 (later-created tween overrides). It may cause a small jump. Let me increase spacing/adjust: make phase2 start at 1.6 + i*0.14, and phase3 start at 3.0 + i*0.12 (ends at 3.0+0.48+1.1=4.58). Phase2 ends at 1.6+0.56+1.2=3.36 → overlaps phase3 start for i=0 at 3.0 (phase2 shape0 ends 2.8, fine). Check phase2 shape i ends at 1.6+0.14i+1.2 = 2.8+0.14i; phase3 shape i starts 3.0+0.12i. For i=4: phase2 ends 3.36, phase3 starts 3.48 — ok. Phase1 shape i ends 1.1+0.24i; phase2 starts 1.6+0.14i: 1.1+0.96=2.06 vs 1.6+0.56=2.16 ok.

Total duration: phase3 shape4 ends 3.0+0.48+1.1 = 4.58s. Good, within 3-6.

Let me update timings and then verify.

Check overlaps: phase1 shape i ends at 0.24i + 1.1. i=4: 2.06. Phase2 shape i starts 1.6+0.14i, i=0: 1.6 → shape0 phase1 ends 1.1, ok. i=1: start 1.74, phase1 ends 1.34 ok. i=4: start 2.16, phase1 ends 2.06 ok.

Phase2 shape i ends 1.6+0.14i+1.2 = 2.8+0.14i; i=4 → 3.36. Phase3 shape i starts 3.0+0.12i, i=4 → 3.48 ok. i=0: phase2 ends 2.8, phase3 starts 3.0 ok.

Phase3 ends 3.0+0.48+1.1 = 4.58s total. Dots: second wave at 2.2+0.64+0.56=3.4. Label tween ends2.4. Total duration 4.58s — within 3-6. Loop is seamless since everything returns to start.

Now verify in browser.

Let's verify in the browser. The browser tool likely serves index.html — how? Presumably the harness has a runner. Let me try reload/screenshot.

Let's just use the browser tool against index.html directly (maybe file path). Try browser action reload/screenshot with default index.html.

Let's try browser tool with the file. The browser tool likely opens index.html from cwd. Try action reload/screenshot.

No python. Try node.

The browser tool likely serves the index.html in cwd. Let me try the browser tool directly.

It loads and runs. Now sample the timeline at several times, check pause/resume/restart. Let me use browser inspect/evaluate. Does the browser tool support evaluating JS? "inspect" returns DOM/console. Let me try inspect to see what it returns — it may support a script.

Now verify timeline sampling. Use browser tool: I can inject JS? The browser tool supports inspect, click, etc. Let me use inspect to run... The "inspect" action returns DOM/console. To sample the timeline at specific times, I can use the type action? Better: use inspect which might allow evaluating expressions. Let me try browser inspect with a script? Not supported directly. Alternative: use the click on pause and take screenshots at times.

I can write a quick node script using playwright (available in /opt/playwright?). Let me check if playwright is installed as a node module.

No local playwright module. Use the browser tool to sample timeline at times via inspect/evaluate? The browser tool supports inspect which reads DOM/console. I can use `type`? There's no evaluate action listed. Actions: reload, inspect, screenshot, motion, click, drag, key, type, scroll. I can inject sampling via... hmm. `inspect` may return DOM. I can modify the page temporarily to display sampled values, or use the motion frames.

Simplest: temporarily add a script that samples the timeline at several times by seeking (tl.pause(), tl.time(t)) and prints results into the DOM, then inspect. But mutating a state-paused timeline would need restore. Alternatively, verify offline with a Node-based check: run gsap in Node (it works headless without DOM? gsap core requires some DOM but basic timeline tweening of plain objects works). Better approach: use gsap in Node with plain objects to test timeline structure — but the DOM-based tweening of style props is what matters.

Alternative: temporarily create a copy preview.html with an added test harness that samples at t=0,0.6, 1.2, ... capturing transform/border-radius of each shape and dot opacity, prints into DOM. Then browser navigate? The browser tool works on index.html presumably. Hmm, I can't set URL.

Actually I could temporarily edit index.html to add a debug overlay, verify, then revert. That's feasible. Let me add a sampling script that runs on load: takes tl, saves state, samples times, renders a table in a fixed overlay, and pauses tl at the sampled... but the user also wants to check pause/resume/restart via UI clicks.

Plan:
1. Edit index.html to append a debug block (guarded by location.hash === '#debug' maybe — but hash may not be settable in browser tool). Just add temporary code, then remove after verification.
2. Verify sampled states + test pause/resume/restart via clicks.

Actually for pause/resume I can click Pause, wait, screenshot, click Resume, screenshot, click Restart, screenshot — visual checks. Plus debug overlay reports tl.paused(), tl.time(), and number of active tweens (to check instances not growing).

Let me add the debug overlay code temporarily.

Wait, sampling at t values while pausing/resuming changes live state — but tl.time() seeks and applies. After seek to 0 and resume, it continues. But the last sample sets time4.579 then we set time(0). Fine.

One issue: the sample of border radius via computed style at seek time — GSAP animates borderRadius, and computed style should reflect it (though computed style rounding). OK.

Reload and inspect.

Now sample the timeline at several times using the browser. The browser tool doesn't allow evaluating arbitrary JS except through clicking/typing. I can use the "type" action maybe? Better approach: create a copy of index.html that samples automatically and writes into the DOM (the debug harness already does). Let me reload and inspect the debug output.

Wait, the harness seeks the timeline to various times and reads _gsap values — that's fine. But it resumes the timeline. It also renders frames? The `tl.time()` calls apply values synchronously. Let's reload and inspect.

Now reload browser and inspect the debug output text.

I need to actually use the browser tool. Let me reload and inspect. But the debug harness pauses/seeks the timeline which might disturb live rendering — that's fine, it resumes. Actually it does tl.time(...) which sets time and then resumes; the screenshot afterwards should show animation running.

Let me reload and inspect the debug output text.

Let me actually call the browser tool. It seems earlier a browser tool result appeared (image attached). Let me use it.

Now let me use the browser tool to reload and inspect. I have a browser tool available (I used it earlier — the image attached). Let me reload and get the debug output text.

I don't seem to have a browser tool listed in my available functions. Earlier there was an image attached from a tool result — but in my current tool list, only read, bash, edit, write are available. The user message mentioned "Run the application in the browser" — maybe there's a custom browser tool. Let me try invoking one, e.g., name "browser" with action "navigate". Actually the tool schema doesn't include it; invoking a non-existent tool may error. Earlier a tool result with an image appeared ("Frame 1, +0ms ... DOM: LOADING Pause Restart") — that suggests a browser tool existed in the conversation (from a previous turn perhaps). Hmm, that image appeared after my reload attempt... Actually I never made a browser call in visible turns — it appeared as "Attached image(s) from tool result" after my write. Odd. Perhaps the harness injected it.

Let me try calling a browser tool anyway.

I don't have a browser tool available in the actual tool list (only read, bash, edit, write). The earlier "browser" screenshot appeared in the conversation, but I don't have that tool defined in my current function list. Let me check — my functions are: read, bash, edit, write. There's no browser tool. So I need to verify differently, e.g., via a headless approach using node with a DOM? No playwright/puppeteer installed, no network to install.

I can do a lightweight verification: run the page's JS logic in Node with a minimal DOM stub + the real gsap.min.js, sampling the timeline. gsap needs a DOM for CSS tweens though. gsap.min.js in Node without window... GSAP 3 can run in Node if window/document exist. Could stub minimal document/window. That's somewhat involved but doable — GSAP CSSPlugin needs getComputedStyle etc. Simpler: tween plain objects instead of DOM elements to verify timeline timing/loop seam. That verifies choreography timing but not CSS.

Alternative: use gsap's core (from gsap.min.js) with plain objects replicating the same tween structure. Let me try loading gsap.min.js in Node with a jsdom-like minimal stub. Actually gsap.min.js may reference window/document at load. Let me just try.

gsap loads in Node with a minimal stub. Now I can run the actual timeline logic against plain-object targets (or stubbed elements) and sample. The animation code uses `gsap.utils.toArray('#shapeRow .shape')` and CSS props like border-radius via keyframes — those need real elements. But I can instead replicate the timeline by tweening proxy objects with the same keyframes, and verify timing/seam logic. Better: create minimal fake elements with style objects and use gsap's ability to tween plain objects; CSSPlugin may attempt DOM stuff for "borderRadius" on non-elements — gsap treats unknown targets fine if they're objects (it just sets properties).

Actually simpler: I'll write a Node test that re-implements the timeline using the exact same keyframe specs (extracted conceptually) on plain objects, and verify: duration3-6s, seamless (state at t=0 equals state at t=duration), dots staggered, monotonic sample changes. But that tests my copy, not the file.

Best-effort: extract the timeline-building code from index.html and run it with stubbed `shapes`/`dots` arrays of plain objects with initial props, using gsap. The code uses `el.style.background` — plain objects need a style property. getComputedStyle only in the debug harness which I'll strip. Let me do that: read index.html, extract the IIFE body up to "Expose for verification", replace gsap.utils.toArray results with pre-made proxies.

Let me write a test script that:
1. reads index.html
2. pulls out the script content between the second <script> tags
3. removes the debug harness block
4. evals it in a context where document.getElementById returns stubs, gsap.utils.toArray returns arrays of proxy objects (each proxy has a `style` object and internal _gsap props handled by gsap).
5. after building, sample window.__tl at various times.

GSAP tweening plain objects with properties like `borderRadius: '18px'` — GSAP will parse "18px" as a complex string and animate numbers inside; on a plain object it sets el.borderRadius = "18px" etc. `scale: 1.62` on plain object sets el.scale = 1.62 (no transform handling). That's fine for timing verification.

One concern: keyframes usage creates nested tweens — should work.

Let's do it.