Web Device layout component (this site) — not an AUP primitive; not an AUP Web-only widget; not a Markdown directive.
Site package: blocklets/arcblock/.web/components/page-breadcrumb/. Resolution priority: site override > theme default.
Purpose
One-line trail back to the collection a detail page belongs to.
Boundaries
- Site-only unless a theme package with the same name also exists (then this page is the override contract).
- Do not document AUP primitives or MD directives on this page.
- Do not invent props beyond the site
manifest.json.
Author entry
layout.aup
Common author-facing props (from manifest): items, currentLabel, collection
Surfaces
layout (and docs shell where mounted).
Public status
released
Fallback
Empty trail → no nav.
Sample
Docs-safe sample verified under #290 on a related path. See related authoring guide linked below for any remaining multi-unit history; this page is the unit contract.
Evidence
| Item | Path |
|---|---|
| Site package | blocklets/arcblock/.web/components/page-breadcrumb/ |
| Manifest | …/page-breadcrumb/manifest.json |
| Renderer | …/page-breadcrumb/render.js (when present) |
| Internal matrix | docs/aup/capability-matrix.md §5 (internal, non-routed) |
| Matrix row concept | site layout-component · page-breadcrumb |
Notes
Not the AUP widget breadcrumb. Site-only layout component.
Related
- Components hub — navigation only
- Theme components (default theme unit pages)
- Component resolution
- Use and override components