snapshot of https://github.com/shadcn-ui/ui.git (main, 2026-09-15; blobs > 131072B omitted)

apps/v4/app/(app)/(create)/components/icon-placeholder.tsx

@@ -0,0 +1,75 @@
+"use client"
+
+import { lazy, Suspense } from "react"
+import { SquareIcon } from "lucide-react"
+import type { IconLibraryName } from "shadcn/icons"
+
+import { useDesignSystemSearchParams } from "@/app/(app)/(create)/lib/search-params"
+
+const IconLucide = lazy(() =>
+  import("@/registry/icons/icon-lucide").then((mod) => ({
+    default: mod.IconLucide,
+  }))
+)
+
+const IconTabler = lazy(() =>
+  import("@/registry/icons/icon-tabler").then((mod) => ({
+    default: mod.IconTabler,
+  }))
+)
+
+const IconHugeicons = lazy(() =>
+  import("@/registry/icons/icon-hugeicons").then((mod) => ({
+    default: mod.IconHugeicons,
+  }))
+)
+
+const IconPhosphor = lazy(() =>
+  import("@/registry/icons/icon-phosphor").then((mod) => ({
+    default: mod.IconPhosphor,
+  }))
+)
+
+const IconRemixicon = lazy(() =>
+  import("@/registry/icons/icon-remixicon").then((mod) => ({
+    default: mod.IconRemixicon,
+  }))
+)
+
+// Preload all icon renderer modules so switching libraries is instant.
+// These warm the browser module cache; React.lazy resolves immediately
+// for modules that are already loaded.
+void import("@/registry/icons/icon-lucide")
+void import("@/registry/icons/icon-tabler")
+void import("@/registry/icons/icon-hugeicons")
+void import("@/registry/icons/icon-phosphor")
+void import("@/registry/icons/icon-remixicon")
+
+export function IconPlaceholder({
+  ...props
+}: {
+  [K in IconLibraryName]: string
+} & React.ComponentProps<"svg">) {
+  const [{ iconLibrary }] = useDesignSystemSearchParams()
+  const iconName = props[iconLibrary]
+
+  if (!iconName) {
+    return null
+  }
+
+  return (
+    <Suspense fallback={<SquareIcon {...props} />}>
+      {iconLibrary === "lucide" && <IconLucide name={iconName} {...props} />}
+      {iconLibrary === "tabler" && <IconTabler name={iconName} {...props} />}
+      {iconLibrary === "hugeicons" && (
+        <IconHugeicons name={iconName} {...props} />
+      )}
+      {iconLibrary === "phosphor" && (
+        <IconPhosphor name={iconName} {...props} />
+      )}
+      {iconLibrary === "remixicon" && (
+        <IconRemixicon name={iconName} {...props} />
+      )}
+    </Suspense>
+  )
+}