initial commit

1 files changed, 27 insertions, 0 deletions

diff --git a/src/frontend/render/preact.ts b/src/frontend/render/preact.ts
new file mode 100644
index 000000000..eb588209c
--- /dev/null
+++ b/src/frontend/render/preact.ts
@@ -0,0 +1,27 @@
+import render from 'preact-render-to-string';
+import { h } from 'preact';
+import type { Component } from 'preact';
+
+export function __preact_static(PreactComponent: Component) {
+    return (attrs: Record<string, any>, ...children: any): string => {
+        let html = render(
+          h(
+            PreactComponent as any, // Preact's types seem wrong...
+            attrs,
+            children
+          )
+        );
+        return html;
+    };
+}
+
+export function __preact_dynamic(PreactComponent: Component, importUrl: string, preactUrl: string) {
+    const placeholderId = `placeholder_${String(Math.random())}`;
+    return (attrs: Record<string, string>, ...children: any) => {
+        return `<div id="${placeholderId}"></div><script type="module">
+            import {h, render} from '${preactUrl}';
+            import Component from '${importUrl}';
+            render(h(Component, ${JSON.stringify(attrs)}), document.getElementById('${placeholderId}'));
+        </script>`;
+    };
+}