mirror of
https://github.com/heygen-com/hyperframes.git
synced 2026-11-03 12:17:03 +00:00
Miguel Ángel
f24ff83834
* feat(catalog): add the seven 3D-motion pieces as installable registry blocks Each piece ships as a registry block with a CDN poster and preview, a live catalog detail page and its source. Scripts travel inside the catalog payload (shared vendor libraries fetched once, item scripts inline, the one HDR as a data URI) because the docs host only serves fonts, images and JSON. NO_ESSAY_COMMENTS_OK: the long comment blocks are in vendored libraries and the ported frost source under registry/blocks, not hand-written here. HF_MAX_NONLFS_KB=6000: four hosted texture PNGs under docs/public/catalog/items are runtime assets the docs host must serve as files. fallow skipped locally: it audits against origin/main and this branch is stacked on an older main. * chore(catalog): regenerate gallery data and nav after rebasing onto main * fix(catalog): read the install manifest through the bounded project reader * fix(catalog): a script the inliner missed fails the payload instead of shipping a dead URL * refactor(catalog): the leftover-script check reuses the reference finder * fix(catalog): frost and glass textures load from the CDN and the iteration presets are gone * chore(catalog): regenerate the frost and glass payloads and nav * fix(catalog): frost and glass textures are hosted through the registry url field, not hardcoded * chore(catalog): regenerate the frost and glass payloads against the hosted texture URLs * fix(catalog): the hosted-reference rewrite refuses a bare name it cannot safely replace * ci(catalog): verify changed catalog payloads in headless Chrome and check the docs catalog * feat(catalog): every item page follows the shared layout with a Tune panel and tabs * fix(catalog): let the texture-mask item host its masks so its tile plays live * chore(catalog): regenerate item pages, gallery data and the texture-mask payload * chore(catalog): regenerate item pages after merging main * fix(catalog): declared-only variables get the Tune panel, Code and Docs tabs capped * feat(catalog): give the blend-difference caption a demo scene so its tile plays live * chore(catalog): live payload for the blend-difference caption * perf(catalog): heavy 3d pieces compile and draw before ready, not on the first visible frame * feat(catalog): the avatar promo card hosts its videos, audio and fonts on the CDN * feat(catalog): the avatar promo card tile plays live from its CDN-hosted media * chore(catalog): the avatar promo card plays live, no allowlist left * chore(catalog): shorten two comment blocks * chore(catalog): trim first-party comment blocks to the comment-check limits * chore(catalog): shorten two frost source comments * fix(catalog): the Docs tab renders as prose again, and the detail page honours reduced motion Frame-mode pages carry no prose wrapper, and the detail component sat inside not-prose, so the Docs slot's headings, paragraphs, links and lists had no styling at all. The slots now carry their own prose classes and the chrome around them keeps not-prose. The recorded clip also gets the reduced-motion guard the docs-snippet check requires, and the generator reads stability from the source metadata type so the scripts typecheck passes. * fix(catalog): docs-tab paragraphs render as blocks Mintlify emits paragraphs as inline spans, so two paragraphs in the Docs slot ran together. * fix(ci): drop the duplicate docs_catalog job output git's line-based auto-merge silently duplicated the outputs key when main and this branch each added it on non-adjacent lines during the rebase; oxfmt's yaml parser rejects the repeated map key. * fix(catalog): close four CodeQL alerts in the frost source * chore(catalog): allowlist the avatar-promo-card CDN asset deletions, format sync-docs-catalog check-no-main-deletions.mjs was rejecting 11 local mp4/font files this branch already deleted in favor of CDN hosting; scripts/sync-docs-catalog.mjs had one line over the 100-col print width from an earlier edit in this branch. * fix(catalog): detail tabs use docs prose spacing, Install first; previews skip no-WebGPU runners * fix(catalog): the docs tab scrolls with the page instead of a capped inner box * refactor(catalog): split the payload asset and verify scripts into single-purpose helpers * refactor(catalog): split the preview generator into single-purpose helpers * ci(catalog): fail when the committed catalog differs from generator output The docs host serves the committed catalog and nothing regenerates it, so a stale copy shipped silently. The catalog payloads job now generates into a temp dir and compares it with the committed tree. * chore(catalog): regenerate docs/public/catalog with the refactored scripts One full regeneration from an empty output tree with the current scripts. The tree grows from 58.4 MB to 65.1 MB. Two hosted assets are about 2 MB each (an avatar png and a wav); the same bytes are already committed under assets/, so HF_MAX_NONLFS_KB is raised for this commit only. * fix(catalog): run the catalog script tests under the runner they are written for The rebase put three node:test files in the vitest half of test:scripts, where they report "No test suite found". They now sit in the node --test list. * fix(catalog): a WebGPU item without an adapter shows its recorded clip and says why * ci(catalog): the drift check runs from a committed fetch mirror with no network Generation now serves every font and CDN script fetch from scripts/catalog-fetch-mirror and fails when a fetch is not in it, even if the caller swallowed the error. CATALOG_FETCH_MIRROR=record refreshes the mirror from the live network. The docs_catalog filter also watches packages/core, packages/producer and the mirror, and the 13 re-hashed font files are listed in ALLOWED_DELETIONS. * chore(catalog): clean up the temp font cache and sort the mirror index without a locale * fix(catalog): hide Tune when the clip stands in, time out the adapter request, share one check * fix(catalog): the adapter probe survives a sync throw and a hang; test the clip guard * fix(catalog): keep the adapter probe inside the component, Mintlify evaluates only exports * fix(catalog): run the detail and page generator tests in CI; no Tune flash while probing WebGPU * docs(catalog): credit vendored libraries and make each SKILL.md list what the block installs CREDITS.md names every vendored dependency with its upstream and licence, and flags the two leaf textures whose origin is still to be confirmed. Each SKILL.md Files table now comes from the block manifest and its install and render paths point at compositions/<name>/. A test checks that every path a SKILL.md names is a manifest file that exists. * fix(catalog): a declared WebGPU item passes verify by its manifest tag, not by console wording verify-catalog-payloads forgave a missing adapter only by matching the markup and the message, which library-reported errors and widgets never satisfy. The webgpu tag in the item manifest is now the owner: a tagged item ignores its page and console errors, an untagged one gets no forgiveness, and a marker payload with no html is listed instead of crashing the run. * docs(catalog): correct the credits per block and guard the mount and render paths CREDITS.md states the three.js version and vendored-or-CDN status per block, adds d3-delaunay, Clipper on the CDN and the Google Fonts loads, and lists every texture with no known origin. The SKILL.md test now also checks the mount and render paths against the manifest composition. * test(catalog): read each block manifest once in the SKILL.md file test The two checks shared a copied manifest read, which fallow flagged as a clone with a high score. * fix(catalog): commit the hosted item files a gitignore rule kept out, and check git not the disk The compositions/ and *-ad/ ignore rules matched folder names under docs/public/catalog/items, so 33 hosted fonts, textures and marks were generated but never committed and would 404 on the docs host. The rules now have a negation for that tree and the files are added. The drift check read the checkout, where git-ignored files still exist, so it passed locally and failed only in CI. It now unpacks HEAD with git archive and compares that. * fix(catalog): a tile keeps its poster until the composition has painted * fix(catalog): a tagged WebGPU item forgives only the adapter-absent error, and test the wiring The manifest webgpu tag now decides whether an item may lack an adapter, and the error wording decides which lines are that absence. Any other page or console error on the item, and every failed request, still fails. The per-item decision is one exported function the tests drive, marker payloads are parsed by a tested helper, and the SKILL.md variable counts are checked against their tables (cuboid-carousel said forty-nine for forty). * fix(catalog): the pinned group's posters load eagerly at high priority * fix(catalog): type the tile reveal test so the scripts typecheck passes * fix(catalog): stop the adapter signature matching an unrelated failed adapter request failed to request .*adapter also matched errors about other adapters. It now matches only a request for the WebGPU adapter, so a tagged item cannot hide an unrelated failure behind it. * test(catalog): a tagged item still fails on an error about some other adapter * feat(catalog): the install command sits above the preview, as on the live catalog * fix(catalog): find the install slot through Mintlify's child wrapper * fix(docs): catalog copy buttons keep their size when the label swaps to Copied * refactor(docs): name the shown copy label once in the catalog copy button * fix(docs): primary catalog button keeps a readable label on hover and after copy * fix(docs): inset the catalog tab strip and tab content to match the boxed panels
624 lines
27 KiB
Plaintext
624 lines
27 KiB
Plaintext
---
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title: "Whiteboard Ink"
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description: "A whiteboard sketch draws one measured stroke at a time while a pen nib follows the active tip. Preset sketches (bulb, flow, rocket) or your own multi-stroke SVG paths via the strokes slot; a path marked data-ink=accent rides the accent token."
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mode: "frame"
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---
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import { CatalogDetail, CatalogSlot } from "/snippets/catalog-detail.jsx";
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import { InstallCommand } from "/snippets/install-command.jsx";
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<CatalogDetail
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previewSrc="/public/catalog/components/whiteboard-ink.json"
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compositionId="whiteboard-ink"
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compositionSrc="compositions/components/whiteboard-ink.html"
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title="Whiteboard Ink"
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description="A whiteboard sketch draws one measured stroke at a time while a pen nib follows the active tip. Preset sketches (bulb, flow, rocket) or your own multi-stroke SVG paths via the strokes slot; a path marked data-ink=accent rides the accent token."
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variables={[{"id":"sketch","type":"enum","role":"content","label":"Sketch","description":"Authored preset sketch to draw. Ignored when the strokes slot holds custom paths.","default":"bulb","options":[{"value":"bulb","label":"Bulb"},{"value":"flow","label":"Flow"},{"value":"rocket","label":"Rocket"}]},{"id":"caption","type":"string","role":"content","label":"Caption","description":"Short line shown after the sketch completes.","default":"Draw the idea"},{"id":"pen","type":"enum","role":"style","label":"Pen","description":"Show or hide the pen nib actor.","default":"show","options":[{"value":"show","label":"Show"},{"value":"hide","label":"Hide"}]},{"id":"accent","type":"enum","role":"style","label":"Accent","description":"Color used by strokes marked data-ink=accent (one highlight stroke in each preset).","default":"green","options":[{"value":"green","label":"Green"},{"value":"blue","label":"Blue"},{"value":"violet","label":"Violet"}]},{"id":"exit","type":"enum","role":"style","label":"Exit","description":"How the completed lockup leaves. none holds the final frame.","default":"none","options":[{"value":"none","label":"None"},{"value":"fade","label":"Fade"},{"value":"up","label":"Up"}]}]}
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meta={{"category":"Motion Scenes","badge":"Stable","codeLines":540}}
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attribution={{"path":"registry/components/whiteboard-ink","tags":["motion-primitive","intro","reveal","svg","whiteboard","line-draw","slot"]}}
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hasCode
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rawUrl="https://raw.githubusercontent.com/heygen-com/hyperframes/main/registry/components/whiteboard-ink/whiteboard-ink.html"
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>
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<CatalogSlot slot="code">
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```html whiteboard-ink.html
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<!doctype html>
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<!--
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whiteboard-ink: HyperFrames video primitive (intros and reveals / ink draw)
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A hand-authored SVG sketch draws one stroke at a time while a pen nib
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samples the active path tip. The nib follows getPointAtLength during each
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draw and takes a short lifted hop between strokes.
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Strokes slot: the SVG ships an empty <g data-slot="strokes"> group. Fill it
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with your own <path> elements (in your installed copy) and those paths
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become the drawing; the sketch enum is ignored while the slot has paths.
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Mark one path data-ink="accent" to route it through the accent token map.
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Nib riding, per-stroke cadence, and the ink law are identical for slot
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strokes and presets.
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Variables:
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- sketch (bulb / flow / rocket): authored preset sketch; ignored when the
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strokes slot holds paths.
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- caption (string): short line shown after the drawing completes.
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- pen (show / hide): visibility of the traveling nib actor.
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- accent (green / blue / violet): one highlight stroke routed through a
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distinct contract token.
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- exit (none / fade / up): how the completed lockup leaves. none holds
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the final frame (frame roots own transitions); fade releases opacity
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only; up adds the small upward drift.
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Envelope, fixed IN and OUT with elastic HOLD only:
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IN_BASE = 3.55s, 3.25s sequential draw phase, then pen exit and caption
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HOLD = max(0, D - IN - OUT), dead-calm completed lockup
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OUT_BASE = 0.45s when exit is fade or up, otherwise 0 (hold to the end)
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If D is shorter than IN_BASE + OUT_BASE, IN and OUT compress together.
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The timeline is never time-scaled.
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Ink law: every selected path is measured once with getTotalLength. That
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measurement owns its dash array, dash offset, cadence weight, and nib
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sampling. Dashed geometry stays in native SVG user units.
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Mount contract: the runtime clones only this template. #root fills the host
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box, establishes the container query basis, has no data-width or data-height,
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and registers one paused timeline under the literal whiteboard-ink key.
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-->
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<html
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lang="en"
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data-composition-id="whiteboard-ink"
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data-composition-duration="5"
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data-composition-variables='[
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{ "id": "sketch", "type": "enum", "role": "content", "label": "Sketch", "description": "Authored preset sketch to draw. Ignored when the strokes slot holds custom paths.", "default": "bulb", "options": [{ "value": "bulb", "label": "Bulb" }, { "value": "flow", "label": "Flow" }, { "value": "rocket", "label": "Rocket" }] },
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{ "id": "caption", "type": "string", "role": "content", "label": "Caption", "description": "Short line shown after the sketch completes.", "default": "Draw the idea" },
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{ "id": "pen", "type": "enum", "role": "style", "label": "Pen", "description": "Show or hide the pen nib actor.", "default": "show", "options": [{ "value": "show", "label": "Show" }, { "value": "hide", "label": "Hide" }] },
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{ "id": "accent", "type": "enum", "role": "style", "label": "Accent", "description": "Color used by strokes marked data-ink=accent (one highlight stroke in each preset).", "default": "green", "options": [{ "value": "green", "label": "Green" }, { "value": "blue", "label": "Blue" }, { "value": "violet", "label": "Violet" }] },
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{ "id": "exit", "type": "enum", "role": "style", "label": "Exit", "description": "How the completed lockup leaves. none holds the final frame.", "default": "none", "options": [{ "value": "none", "label": "None" }, { "value": "fade", "label": "Fade" }, { "value": "up", "label": "Up" }] }
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]'
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>
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<head>
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<meta charset="UTF-8" />
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<title>Whiteboard Ink</title>
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</head>
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<body>
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<template>
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<div id="root" data-composition-id="whiteboard-ink" data-duration="5" data-fps="30">
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<style>
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*,
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*::before,
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*::after {
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box-sizing: border-box;
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}
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#root {
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position: absolute;
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inset: 0;
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overflow: hidden;
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container-type: size;
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isolation: isolate;
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background:
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radial-gradient(
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ellipse at 48% 42%,
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color-mix(in srgb, var(--bg, #f6f1e7) 96%, var(--fg, #20242b)) 0%,
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var(--bg, #f6f1e7) 72%
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),
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var(--bg, #f6f1e7);
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color: var(--fg, #20242b);
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font-family: var(--font-body, Inter, system-ui, sans-serif);
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pointer-events: none;
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}
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.wbi-clip {
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position: absolute;
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inset: 0;
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display: grid;
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place-items: center;
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overflow: hidden;
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}
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.wbi-stage {
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display: grid;
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grid-template-rows: minmax(0, 1fr) auto;
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width: 92cqw;
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height: 90cqh;
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opacity: 0;
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will-change: transform, opacity;
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}
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.wbi-board {
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position: relative;
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min-height: 0;
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}
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.wbi-svg {
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display: block;
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width: 100%;
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height: 100%;
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overflow: visible;
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}
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.wbi-sketch[hidden] {
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display: none;
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}
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.wbi-stroke {
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fill: none;
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stroke: var(--fg, #20242b);
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/* User-space width: never non-scaling-stroke on dashed paths
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(screen-space dash breaks draw-on under group scale). Non-uniform
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scale gives a natural thick-thin nib variation. */
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stroke-width: 6;
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stroke-linecap: round;
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stroke-linejoin: round;
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}
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.wbi-stroke.wbi-accent {
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stroke: var(--wbi-accent);
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}
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/* Custom strokes-slot paths inherit the same ink treatment without
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needing any class; data-ink="accent" routes through the accent
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token map exactly like a preset's highlight stroke. */
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[data-slot="strokes"] path {
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fill: none;
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stroke: var(--fg, #20242b);
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stroke-width: 6;
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stroke-linecap: round;
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stroke-linejoin: round;
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}
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[data-slot="strokes"] path[data-ink="accent"] {
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stroke: var(--wbi-accent);
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}
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.wbi-pen {
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filter: drop-shadow(0 5px 6px color-mix(in srgb, var(--fg, #20242b) 20%, transparent));
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will-change: transform, opacity;
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}
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.wbi-pen-art {
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will-change: transform;
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}
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.wbi-pen-body {
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fill: var(--surface, #ffffff);
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stroke: var(--fg, #20242b);
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stroke-width: 4;
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stroke-linecap: round;
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stroke-linejoin: round;
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}
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.wbi-pen-nib {
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fill: var(--wbi-accent);
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stroke: var(--fg, #20242b);
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stroke-width: 3;
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}
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.wbi-caption {
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min-height: 10cqh;
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padding-top: var(--space-1, 1.8cqh);
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color: var(--muted, #667085);
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font-family: var(--font-display, Inter, system-ui, sans-serif);
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font-size: clamp(24px, 5cqh, 52px);
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font-weight: 680;
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line-height: 1.1;
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letter-spacing: -0.02em;
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text-align: center;
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opacity: 0;
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}
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</style>
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<div
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id="wbi-clip"
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class="wbi-clip clip"
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data-start="0"
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data-duration="5"
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data-track-index="0"
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>
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<div class="wbi-stage" role="img">
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<div class="wbi-board">
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<svg
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class="wbi-svg"
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viewBox="0 0 1000 560"
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preserveAspectRatio="xMidYMid meet"
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aria-hidden="true"
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>
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<g
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class="wbi-sketch"
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data-sketch="bulb"
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transform="translate(500 280) scale(1.25 1.4) translate(-500 -256)"
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>
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<path
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class="wbi-stroke"
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d="M 430 340 C 414 310 392 286 386 244 C 376 172 427 113 501 109 C 578 105 633 160 626 235 C 622 279 596 306 574 341"
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></path>
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<path
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class="wbi-stroke wbi-accent"
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d="M 454 238 C 469 251 482 263 499 292 C 517 261 532 247 549 235"
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></path>
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<path class="wbi-stroke" d="M 431 347 C 468 353 531 350 571 343"></path>
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<path class="wbi-stroke" d="M 438 369 C 476 376 525 373 564 365"></path>
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<path class="wbi-stroke" d="M 454 389 C 482 403 520 402 548 385"></path>
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<path class="wbi-stroke" d="M 333 231 C 349 228 360 230 372 232"></path>
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<path class="wbi-stroke" d="M 640 228 C 657 225 670 226 685 230"></path>
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</g>
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<g
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class="wbi-sketch"
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data-sketch="flow"
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transform="translate(500 280) scale(0.9 2.1) translate(-525 -265)"
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hidden
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>
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<path
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class="wbi-stroke"
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d="M 145 205 C 145 184 160 171 184 171 L 315 171 C 338 171 351 187 351 207 L 351 322 C 351 344 337 357 314 357 L 181 357 C 158 357 145 342 145 321 Z"
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></path>
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<path
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class="wbi-stroke wbi-accent"
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d="M 352 264 C 378 258 397 259 425 263 L 446 267 M 429 249 L 446 267 L 427 284"
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></path>
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<path class="wbi-stroke" d="M 516 170 L 611 265 L 516 360 L 421 265 Z"></path>
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<path
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class="wbi-stroke"
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d="M 612 265 C 641 268 662 268 691 264 L 711 263 M 694 247 L 711 263 L 694 280"
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></path>
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<path
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class="wbi-stroke"
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d="M 711 204 C 711 184 726 171 749 171 L 868 171 C 891 171 905 187 905 208 L 905 321 C 905 343 891 357 868 357 L 748 357 C 725 357 711 342 711 321 Z"
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></path>
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<path
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class="wbi-stroke"
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d="M 764 266 C 785 284 802 292 820 294 C 837 278 849 256 861 230"
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></path>
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</g>
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<g class="wbi-sketch" data-sketch="rocket" transform="translate(0 -17)" hidden>
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<path
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class="wbi-stroke"
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d="M 500 76 C 552 117 581 184 578 272 C 576 329 549 378 500 420 C 451 378 425 329 422 272 C 419 184 448 117 500 76 Z"
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></path>
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<path
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class="wbi-stroke wbi-accent"
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d="M 500 181 C 526 181 544 198 544 223 C 544 248 527 265 500 265 C 475 265 457 248 457 223 C 457 199 474 181 500 181 Z"
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></path>
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<path
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class="wbi-stroke"
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d="M 430 295 C 386 320 359 363 353 419 C 389 405 420 384 448 353"
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></path>
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<path
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class="wbi-stroke"
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d="M 570 295 C 614 320 641 363 647 419 C 611 405 580 384 552 353"
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></path>
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<path
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class="wbi-stroke"
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d="M 476 415 C 464 445 470 478 500 518 C 530 478 536 445 524 415"
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></path>
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<path class="wbi-stroke" d="M 452 431 C 433 451 427 475 433 500"></path>
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<path class="wbi-stroke" d="M 548 431 C 567 451 573 475 567 500"></path>
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</g>
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<!--
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Strokes slot. Fill this group with your own <path> elements
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(installed copy) to replace the preset sketches; paths draw
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in document order in the 0 0 1000 560 viewBox space. Mark a
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path data-ink="accent" for the accent token. Ships empty.
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-->
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<g class="wbi-sketch" data-slot="strokes" data-sketch="custom" hidden></g>
|
|
|
|
<g class="wbi-pen" aria-hidden="true">
|
|
<g class="wbi-pen-art">
|
|
<path class="wbi-pen-body" d="M 0 0 L -43 -11 L -52 0 L -43 11 Z"></path>
|
|
<path class="wbi-pen-nib" d="M 0 0 L -11 -7 L -11 7 Z"></path>
|
|
</g>
|
|
</g>
|
|
</svg>
|
|
</div>
|
|
<div class="wbi-caption"></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");
|
|
var stage = root.querySelector(".wbi-stage");
|
|
var captionElement = root.querySelector(".wbi-caption");
|
|
var penElement = root.querySelector(".wbi-pen");
|
|
var penArt = root.querySelector(".wbi-pen-art");
|
|
var vars =
|
|
window.__hyperframes && window.__hyperframes.getVariables
|
|
? window.__hyperframes.getVariables()
|
|
: {};
|
|
|
|
var sketchGroups = {
|
|
bulb: root.querySelector('[data-sketch="bulb"]'),
|
|
flow: root.querySelector('[data-sketch="flow"]'),
|
|
rocket: root.querySelector('[data-sketch="rocket"]'),
|
|
};
|
|
var sketch = Object.prototype.hasOwnProperty.call(sketchGroups, vars.sketch)
|
|
? vars.sketch
|
|
: "bulb";
|
|
var caption = vars.caption == null ? "Draw the idea" : String(vars.caption);
|
|
var penVisible = vars.pen !== "hide";
|
|
var accentColors = {
|
|
green: "var(--brand, #71f5a7)",
|
|
blue: "var(--accent, #61a8ff)",
|
|
violet: "var(--accent-2, #c5a3ff)",
|
|
};
|
|
var accent = Object.prototype.hasOwnProperty.call(accentColors, vars.accent)
|
|
? vars.accent
|
|
: "green";
|
|
var exitModes = { none: true, fade: true, up: true };
|
|
var exitMode = Object.prototype.hasOwnProperty.call(exitModes, vars.exit)
|
|
? vars.exit
|
|
: "none";
|
|
|
|
// Strokes slot: user-supplied paths replace the preset sketches.
|
|
var strokesSlot = root.querySelector('[data-slot="strokes"]');
|
|
var slotPaths = strokesSlot ? strokesSlot.querySelectorAll("path") : [];
|
|
var hasCustomStrokes = slotPaths.length > 0;
|
|
if (hasCustomStrokes) {
|
|
Array.prototype.forEach.call(slotPaths, function (path) {
|
|
// CSS beats SVG presentation attributes; promote an authored
|
|
// stroke-width to inline style so it wins over the slot rule.
|
|
var strokeWidth = path.getAttribute("stroke-width");
|
|
if (strokeWidth) path.style.strokeWidth = strokeWidth;
|
|
});
|
|
}
|
|
|
|
Object.keys(sketchGroups).forEach(function (name) {
|
|
// SVG <g> has no `hidden` IDL property (assignment is a dead
|
|
// expando); toggle the attribute so the [hidden] CSS applies.
|
|
if (hasCustomStrokes || name !== sketch)
|
|
sketchGroups[name].setAttribute("hidden", "");
|
|
else sketchGroups[name].removeAttribute("hidden");
|
|
});
|
|
if (hasCustomStrokes) strokesSlot.removeAttribute("hidden");
|
|
var activeGroup = hasCustomStrokes ? strokesSlot : sketchGroups[sketch];
|
|
root.style.setProperty("--wbi-accent", accentColors[accent]);
|
|
captionElement.textContent = caption;
|
|
penElement.style.display = penVisible ? "" : "none";
|
|
stage.setAttribute(
|
|
"aria-label",
|
|
(hasCustomStrokes
|
|
? "Custom sketch. "
|
|
: sketch.charAt(0).toUpperCase() + sketch.slice(1) + " sketch. ") + caption,
|
|
);
|
|
|
|
var groupTransform = activeGroup.transform.baseVal.consolidate();
|
|
var strokes = Array.from(activeGroup.querySelectorAll("path")).map(function (path) {
|
|
var length = path.getTotalLength();
|
|
path.style.strokeDasharray = length + " " + length;
|
|
path.style.strokeDashoffset = String(length);
|
|
return {
|
|
path: path,
|
|
length: length,
|
|
progress: 0,
|
|
matrix: groupTransform ? groupTransform.matrix : null,
|
|
};
|
|
});
|
|
var totalLength = strokes.reduce(function (sum, stroke) {
|
|
return sum + stroke.length;
|
|
}, 0);
|
|
|
|
function pointAt(stroke, distance) {
|
|
var point = stroke.path.getPointAtLength(distance);
|
|
return stroke.matrix ? point.matrixTransform(stroke.matrix) : point;
|
|
}
|
|
|
|
function pathPose(stroke, progress) {
|
|
var distance = progress * stroke.length;
|
|
var tangentStep = Math.max(0.5, stroke.length * 0.004);
|
|
var before = pointAt(stroke, Math.max(0, distance - tangentStep));
|
|
var after = pointAt(stroke, Math.min(stroke.length, distance + tangentStep));
|
|
var point = pointAt(stroke, distance);
|
|
|
|
return {
|
|
x: point.x,
|
|
y: point.y,
|
|
rotation: (Math.atan2(after.y - before.y, after.x - before.x) * 180) / Math.PI,
|
|
};
|
|
}
|
|
|
|
function placePen(pose) {
|
|
gsap.set(penElement, { x: pose.x, y: pose.y, rotation: pose.rotation });
|
|
}
|
|
|
|
function renderStroke(stroke) {
|
|
var clamped = Math.max(0, Math.min(1, stroke.progress));
|
|
stroke.path.style.strokeDashoffset = String((1 - clamped) * stroke.length);
|
|
placePen(pathPose(stroke, clamped));
|
|
}
|
|
|
|
var DRAW_PHASE_BASE = 3.25;
|
|
var CAPTION_BASE = 0.3;
|
|
var IN_BASE = DRAW_PHASE_BASE + CAPTION_BASE;
|
|
var OUT_BASE = exitMode === "none" ? 0 : 0.45;
|
|
var resolvedDuration =
|
|
window.__hyperframes && window.__hyperframes.getDuration
|
|
? window.__hyperframes.getDuration()
|
|
: undefined;
|
|
var duration = Math.max(
|
|
0.001,
|
|
typeof resolvedDuration === "number"
|
|
? resolvedDuration
|
|
: parseFloat(root.dataset.duration || "5"),
|
|
);
|
|
var fixedTotal = IN_BASE + OUT_BASE;
|
|
var phaseScale = duration < fixedTotal ? duration / fixedTotal : 1;
|
|
var IN = IN_BASE * phaseScale;
|
|
var OUT = OUT_BASE * phaseScale;
|
|
var HOLD = Math.max(0, duration - IN - OUT);
|
|
var DRAW_PHASE = DRAW_PHASE_BASE * phaseScale;
|
|
var CAPTION = CAPTION_BASE * phaseScale;
|
|
var hopCount = strokes.length - 1;
|
|
var HOP = 0.1 * phaseScale;
|
|
var MIN_DRAW = 0.26 * phaseScale;
|
|
// Custom slots can hold many strokes; when the fixed per-stroke
|
|
// floors alone would overrun the draw phase, shrink them together
|
|
// so the cadence stays sequential and the phase never overflows.
|
|
var fixedNeed = MIN_DRAW * strokes.length + HOP * hopCount;
|
|
if (fixedNeed > DRAW_PHASE) {
|
|
var crowd = DRAW_PHASE / fixedNeed;
|
|
HOP *= crowd;
|
|
MIN_DRAW *= crowd;
|
|
}
|
|
var DRAW_BUDGET = DRAW_PHASE - HOP * hopCount;
|
|
var LENGTH_BUDGET = Math.max(0, DRAW_BUDGET - MIN_DRAW * strokes.length);
|
|
var OUT_START = IN + HOLD;
|
|
var cursor = 0;
|
|
|
|
gsap.set(stage, { opacity: 0, y: "1.2cqh" });
|
|
gsap.set(captionElement, { opacity: 0, y: "1.4cqh" });
|
|
gsap.set(penElement, { opacity: penVisible ? 1 : 0 });
|
|
gsap.set(penArt, { y: 0, transformOrigin: "0px 0px" });
|
|
placePen(pathPose(strokes[0], 0));
|
|
|
|
var tl = gsap.timeline({ paused: true });
|
|
|
|
// IN: each stroke owns one progress value. Its single onUpdate
|
|
// paints the dash and places the nib at the same ink front.
|
|
tl.to(
|
|
stage,
|
|
{ opacity: 1, y: "0cqh", duration: Math.min(0.26, IN), ease: "power2.out" },
|
|
0,
|
|
);
|
|
|
|
strokes.forEach(function (stroke, index) {
|
|
var drawDuration = MIN_DRAW + (LENGTH_BUDGET * stroke.length) / totalLength;
|
|
|
|
tl.to(
|
|
stroke,
|
|
{
|
|
progress: 1,
|
|
duration: drawDuration,
|
|
ease: "power1.inOut",
|
|
onUpdate: function () {
|
|
renderStroke(stroke);
|
|
},
|
|
},
|
|
cursor,
|
|
);
|
|
cursor += drawDuration;
|
|
|
|
if (index < strokes.length - 1) {
|
|
var nextStroke = strokes[index + 1];
|
|
var fromPose = pathPose(stroke, 1);
|
|
var toPose = pathPose(nextStroke, 0);
|
|
var hopState = { progress: 0 };
|
|
|
|
tl.to(
|
|
hopState,
|
|
{
|
|
progress: 1,
|
|
duration: HOP,
|
|
ease: "power2.out",
|
|
onUpdate: function () {
|
|
var progress = hopState.progress;
|
|
placePen({
|
|
x: fromPose.x + (toPose.x - fromPose.x) * progress,
|
|
y:
|
|
fromPose.y +
|
|
(toPose.y - fromPose.y) * progress -
|
|
Math.sin(Math.PI * progress) * 18,
|
|
rotation:
|
|
fromPose.rotation + (toPose.rotation - fromPose.rotation) * progress,
|
|
});
|
|
gsap.set(penArt, { y: -Math.sin(Math.PI * progress) * 8 });
|
|
},
|
|
},
|
|
cursor,
|
|
);
|
|
cursor += HOP;
|
|
}
|
|
});
|
|
|
|
tl.to(
|
|
captionElement,
|
|
{ opacity: 1, y: "0cqh", duration: CAPTION, ease: "power2.out" },
|
|
cursor,
|
|
);
|
|
tl.to(penElement, { opacity: 0, duration: CAPTION, ease: "power2.out" }, cursor);
|
|
tl.to(penArt, { y: -18, duration: CAPTION, ease: "power2.out" }, cursor);
|
|
|
|
// HOLD: the completed lockup stays dead calm. Duration changes
|
|
// stretch only this gap between the caption reveal and OUT.
|
|
|
|
// OUT: only when an exit is requested; exit none holds the final
|
|
// frame to the end (frame roots own transitions).
|
|
if (exitMode !== "none") {
|
|
var exitTween = { opacity: 0, duration: OUT, ease: "power2.in" };
|
|
if (exitMode === "up") exitTween.y = "-1.8cqh";
|
|
tl.to(stage, exitTween, OUT_START);
|
|
}
|
|
|
|
tl.seek(0);
|
|
window.__timelines = window.__timelines || {};
|
|
window.__timelines["whiteboard-ink"] = tl;
|
|
})();
|
|
</script>
|
|
</div>
|
|
</template>
|
|
</body>
|
|
</html>
|
|
```
|
|
|
|
</CatalogSlot>
|
|
|
|
<CatalogSlot slot="install">
|
|
|
|
<InstallCommand command="npx hyperframes add whiteboard-ink" item="whiteboard-ink" />
|
|
|
|
That writes one file: `compositions/components/whiteboard-ink.html`.
|
|
|
|
</CatalogSlot>
|
|
|
|
<CatalogSlot slot="docs">
|
|
|
|
## Paste it into your composition
|
|
|
|
Open `compositions/components/whiteboard-ink.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 |
|
|
| --- | --- | --- | --- |
|
|
| `sketch` | `bulb` | `bulb`, `flow`, `rocket` | Authored preset sketch to draw. Ignored when the strokes slot holds custom paths. |
|
|
| `caption` | `Draw the idea` | string | Short line shown after the sketch completes. |
|
|
| `pen` | `show` | `show`, `hide` | Show or hide the pen nib actor. |
|
|
| `accent` | `green` | `green`, `blue`, `violet` | Color used by strokes marked data-ink=accent (one highlight stroke in each preset). |
|
|
| `exit` | `none` | `none`, `fade`, `up` | How the completed lockup leaves. none holds the final frame. |
|
|
|
|
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:
|
|
|
|
```html wrap
|
|
<div
|
|
data-composition-id="whiteboard-ink"
|
|
data-composition-src="compositions/components/whiteboard-ink.html"
|
|
data-variable-values='{"sketch":"bulb","caption":"Draw the idea","pen":"show","accent":"green","exit":"none"}'
|
|
></div>
|
|
```
|
|
|
|
{/* hf:generated-footer */}
|
|
|
|
Tagged `motion-primitive` `intro` `reveal` `svg` `whiteboard` `line-draw` `slot`.
|
|
|
|
## Related topics
|
|
|
|
- [Browse the complete Catalog](/catalog)
|
|
- [Add assets and Catalog items in Studio](/studio/assets-and-blocks)
|
|
- [Build a richer composition](/go-further)
|
|
|
|
</CatalogSlot>
|
|
|
|
</CatalogDetail>
|