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feat(spec): page variable source renders as a component picker (objectui#2328) #2968

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Merged
os-zhuang merged 1 commit into from
Jul 15, 2026
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feat(spec): page variable source renders as a component picker (objectui#2328) #2968

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13 changes: 13 additions & 0 deletions .changeset/page-var-source-component-picker.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,13 @@
---
'@objectstack/spec': minor
---

feat(spec): page variable `source` renders as a component picker (objectui#2328)

The page metadata form's `variables` repeater now declares explicit sub-fields
and pins `{ field: 'source', widget: 'ref:component' }`. A page variable's
`source` names the component (by `id`) that writes it, so Studio can offer it as
a dropdown of the components actually placed on the page — mirroring how the
sibling `object` field uses `ref:object` — instead of a free-text input the
author has to type an id into by hand. The `ref:component` widget itself lives
in objectui (app-shell metadata-admin); this change is the form-spec trigger.
16 changes: 15 additions & 1 deletion packages/spec/src/ui/page.form.ts
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Expand Up @@ -52,7 +52,21 @@ export const pageForm = defineForm({
visibleWhen: "data.type != 'list'",
fields: [
{ field: 'object', widget: 'ref:object', helpText: 'Bound object (for Record pages)' },
{ field: 'variables', type: 'repeater', helpText: 'Local page state variables' },
{
field: 'variables',
type: 'repeater',
helpText: 'Local page state variables',
// Explicit sub-fields so `source` can use the `ref:component` picker —
// a variable's `source` names the component (by `id`) that writes it,
// so it's chosen from the page's real canvas components, not typed by
// hand. Keep in sync with PageVariableSchema.
fields: [
{ field: 'name', required: true, helpText: 'Variable name — exposed to expressions as `page.<name>`' },
{ field: 'type', helpText: 'Value type' },
{ field: 'defaultValue', helpText: 'Initial value (defaults to a type-appropriate empty value)' },
{ field: 'source', widget: 'ref:component', helpText: 'Component (by id) that writes this variable — e.g. an element:record_picker' },
],
},
],
},
{
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