React 19 Support (#717)

Co-authored-by: Matt Herbst <[email protected]>

examples/BasicComponent/index.tsx

@@ -0,0 +1,40 @@
+import * as React from 'react';
+
+import { ComponentToPrint } from "../ComponentToPrint";
+import { CUSTOM_FONTS } from "../fonts";
+import { useReactToPrint } from "../../src/hooks/useReactToPrint";
+
+/**
+ * A basic printing example printing a component
+ */
+export const BasicComponent = () => {
+  const componentRef = React.useRef(null);
+
+  const handleAfterPrint = React.useCallback(() => {
+    console.log("`onAfterPrint` called"); // tslint:disable-line no-console
+  }, []);
+
+  const handleBeforePrint = React.useCallback(() => {
+    console.log("`onBeforePrint` called"); // tslint:disable-line no-console
+    return Promise.resolve();
+  }, []);
+
+  const printFn = useReactToPrint({
+    contentRef: componentRef,
+    documentTitle: "AwesomeFileName",
+    fonts: CUSTOM_FONTS,
+    onAfterPrint: handleAfterPrint,
+    onBeforePrint: handleBeforePrint,
+  }); 
+
+  const handleOnClick = React.useCallback(() => {
+    printFn();
+  }, [printFn]);
+
+  return (
+    <div>
+      <button onClick={handleOnClick}>Print</button>
+      <ComponentToPrint ref={componentRef} />
+    </div>
+  );
+};