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feat(core): sub-composition variable render path

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James
2026-07-09 13:31:04 -07:00
parent 8de80bf369
commit a9901cb661
5 changed files with 62 additions and 2 deletions
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packages/core/src/compiler/inlineSubCompositions.test.ts
+44
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@@ -1,6 +1,7 @@
import { describe, expect, it } from "vitest";
import { parseHTML } from "linkedom";
import { inlineSubCompositions } from "./inlineSubCompositions";
import { readDeclaredDefaults, parseHostVariableValues } from "../runtime/getVariables";
// Fixtures reference GSAP CDN but are never loaded in a real browser — resolveHtml is mocked.
@@ -358,3 +359,46 @@ describe("inlineSubCompositions – #ID selector scoping divergence", () => {
);
});
});
describe("inlineSubCompositions – variable defaults on a template sub-comp root div", () => {
const SUB_COMP_WITH_VAR = `<template id="card-template">
<div id="card" data-composition-id="card" data-width="1920" data-height="1080"
data-composition-variables='[{"id":"headline","type":"string","label":"Headline","default":"Hi there"}]'>
<h1 class="title" data-var-text="headline">Hi there</h1>
</div>
</template>`;
function hostDoc() {
const { document } = parseHTML(`<!DOCTYPE html><html><body>
<div data-composition-id="main">
<div data-composition-id="card" data-composition-src="card.html"
data-start="0" data-duration="4" data-track-index="0"></div>
</div></body></html>`);
return document;
}
it("aggregates defaults declared on the inner root div (template comps have no <html> to hold them)", () => {
const document = hostDoc();
const host = document.querySelector('[data-composition-src="card.html"]')!;
const result = inlineSubCompositions(document, [host], {
resolveHtml: () => SUB_COMP_WITH_VAR,
parseHtml: (h) => parseHTML(h).document,
readVariableDefaults: readDeclaredDefaults,
parseHostVariables: parseHostVariableValues,
});
expect(result.variablesByComp["card"]).toMatchObject({ headline: "Hi there" });
});
it("lets a per-instance host value override the declared default", () => {
const document = hostDoc();
const host = document.querySelector('[data-composition-src="card.html"]')!;
host.setAttribute("data-variable-values", JSON.stringify({ headline: "Overridden" }));
const result = inlineSubCompositions(document, [host], {
resolveHtml: () => SUB_COMP_WITH_VAR,
parseHtml: (h) => parseHTML(h).document,
readVariableDefaults: readDeclaredDefaults,
parseHostVariables: parseHostVariableValues,
});
expect(result.variablesByComp["card"]).toMatchObject({ headline: "Overridden" });
});
});