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Web Device layout component · ARC 2.0.0-beta.28

`news-ticker`

Web Device layout component `news-ticker`: purpose, boundaries, author entry, evidence, and sample honesty.

Web Device layout component — not an AUP primitive; not an AUP Web-only widget; not a Markdown directive.

Default-theme package: providers/runtime/web-device/themes/default/components/news-ticker/ (manifest.json + render.js). Resolved through the layout component chain (runtime surface → theme → optional site override).

Purpose

Scrolling news headlines driven by a data source.

Boundaries

  • Do not call this an AUP primitive or put it under docs/aup/primitives/.
  • Do not mix multiple layout components' contracts on this page.
  • Manifest props are the author-facing contract; invented props are not portable.

Author entry

layout.aup

Common author-facing props (from manifest): items

Surfaces

layout (and narrow where the theme supports it). Not the document Markdown directive surface.

Public status

experimental

Fallback

—

Sample

No docs-safe live sample on this site yet. Use the evidence paths as source-only reference. Experimental units must not be described as released product capability.

Evidence

ItemPath
Theme packageproviders/runtime/web-device/themes/default/components/news-ticker/
Manifest…/news-ticker/manifest.json
Renderer…/news-ticker/render.js
Internal matrixdocs/aup/capability-matrix.md §3 (internal, non-routed)
Matrix row conceptlayout-component · news-ticker

Notes

Not the AUP Web-only widget ticker. Experimental — no docs-safe sample contract yet.