content@texuli/mediaagent-emittablecontent
Canvas composition
media-composition-canvas
A validated layered composition rendered to a canvas.
Live examples
Canvas composition example
Canvas composition example
Loading demo…
Props
| Name | Kind | Required | Default | Description |
|---|---|---|---|---|
composition | object | yes | — | — |
trust | enum (developer, untrusted) | no | — | — |
label | string | no | — | — |
labels | object | no | — | — |
pixelRatio | number | no | — | — |
dir | enum (ltr, rtl) | no | — | — |
fontFamily | string | no | — | — |
background | string | no | — | — |
loadImage | event | no | — | Host-provided callback; omit when no host behavior is needed. |
onrender | event | no | — | Host-provided callback; omit when no host behavior is needed. |
Keyboard
| Key | Action |
|---|---|
— | See accessibility notes for keyboard behavior. |
Accessibility
- Provide the required accessible title, description or text alternatives.
- Keep data available in the component-provided text or table alternative.
Evidence for media-composition-canvas
Latest committed gates for media-composition-canvas (as of 2026-10-23). Static snapshot — not live CI.
Behavior
n/ano behavior scenario
No dedicated behavior scenario for this catalog id (a styled or display surface, covered by its unit and axe tests).
Size (gzip)
@texuli/media/media-composition-canvas · budget 12.0 KiB
Budget from texuli.budgets.json; re-measure with `pnpm size --filter <entry>`.
Axe
documented
tests/e2e/site-component-pages.spec.tsdocs/quality (a11y-*)
Site component pages axe gate; package-level a11y docs under docs/quality when present.
Browsers
chromiumwebkitmobile
Playwright projects: Desktop Chrome, Desktop Safari, Pixel 7. Firefox is a known gap on this host.
When to use
Use when
- Render canvas composition from structured content data.
Don’t use when
Prefer another component
- Application navigation, account controls or mutations.