# `Events['xr:cta']`

> Contract 2.0.0 · package sha256 `a857eca95b35921109faf997094bb4192f12527d9d0fcd4be7e97f06425bad6e` · generated from `configurator-runtime.d.ts` by `services/onsite-scripter/scripts/build-contract-docs.mjs`; edit the source, not this file.

Property of [`Events`](Events.md) · labs, `@experimental` · since 2.0.0

```ts
'xr:cta': {
  readonly action: 'add-to-cart' | 'back' | 'other';
  readonly configuration: DeepReadonly<SceneModel> | null;
};
```

A call to action in AR (the in-page AR's button, the Quick Look banner): `configuration` is
the scene model at the tap, with no key material.

## Fields

<a id="action"></a>
### `action`

```ts
readonly action: 'add-to-cart' | 'back' | 'other';
```

<a id="configuration"></a>
### `configuration`

```ts
readonly configuration: DeepReadonly<SceneModel> | null;
```

## Generic-API test (spec 3.1)

| Rule | Result |
| --- | --- |
| 1. Neutral name | pass: `xr:cta` names no product |
| 2. A precedent | pass: [model-viewer canActivateAR and activateAR()](https://modelviewer.dev/docs/index.html#entrydocs-augmentedreality-methods-activateAR) (row `G66`); [XRSession.end()](https://developer.mozilla.org/en-US/docs/Web/API/XRSession/end) (row `G66`); [Navigator.share() (resolves when the share UI closes)](https://developer.mozilla.org/en-US/docs/Web/API/Navigator/share) (row `G66`) |
| 3. Two apps, or labs | labs (`@experimental` at a stable path, reached through `has()` or `supports()`): it graduates when a second app uses it; apps today: configurator-template, tryon-template |
| 4. The cheaper fix first | decided per need in Appendix B: rows `G66` at tier labs (a member only where no rule, data, asset or app code serves the need) |