mara: 'i dont like js css attacher. is there a cleaner way?' — yes: each component instance was already building its own fresh CSSStyleSheet() per connect, no sharing across instances, so adoptedStyleSheets bought nothing here over a plain <style> tag. Same raw-text CSS import, just a simpler attach step.
21 lines
1.1 KiB
JavaScript
21 lines
1.1 KiB
JavaScript
// attachShadowCss(host, cssText, shadowInit) — attach an open shadow root
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// to `host`, append `cssText` as a plain `<style>` element, and return the
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// root. Shared by every shadow-DOM custom element (hive-dialog, hive-toast,
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// hive-btn) so the boilerplate lives in one place instead of being
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// copy-pasted per component.
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//
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// A `<style>` element rather than a constructed `CSSStyleSheet` +
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// `adoptedStyleSheets` — mara's call on review, and the right one: each
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// component instance was already building its own fresh `CSSStyleSheet()`
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// per connect (no sharing across instances), so `adoptedStyleSheets` bought
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// nothing here over the plain, universally-understood `<style>` tag. Reach
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// for `adoptedStyleSheets` again only if a future component actually shares
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// one parsed stylesheet object across many instances — that's the case it
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// exists for.
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export function attachShadowCss(host, cssText, shadowInit = {}) {
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const root = host.attachShadow({ mode: 'open', ...shadowInit });
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const style = document.createElement('style');
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style.textContent = cssText;
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root.append(style);
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return root;
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}
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