Bytter ut FloatingPortal med egen implementasjon (#2697)

* 🎉 Egen Portal-komponent

* 🎨 Portal og Overlay exportert i root

* ♻️ Tooltip bruker egen Portal

* 📝 Changeset

* 🔥 Fjernet ID på Portal-element

* 🎉 Ny type WithAsChild

* ♻️ Mer robust sjekk for conditional elements i WithAsChild

* 📝 WithAsChild JSDOC

* 📝 WithAsChild JSDOC 2

* Update .changeset/lovely-points-heal.md

Co-authored-by: Halvor Haugan <83693529+HalvorHaugan@users.noreply.github.com>

* ♻️ Fikset kommentarer fra git-pr

---------

Co-authored-by: Halvor Haugan <83693529+HalvorHaugan@users.noreply.github.com>

.changeset/lovely-points-heal.md

@@ -0,0 +1,5 @@
+---
+"@navikt/ds-react": minor
+---
+
+Portal: Ny komponent `Portal` som lar deg enkelt bruke `createPortal`, også på serversiden

@navikt/core/react/src/index.ts

@@ -10,6 +10,7 @@ export * from "./expansion-card";
 export * from "./form";
 export * from "./grid";
 export * from "./guide-panel";
+export * from "./overlays";
 export * from "./help-text";
 export * from "./internal-header";
 export * from "./link";

@navikt/core/react/src/overlays/index.ts

@@ -0,0 +1,2 @@
+export { Portal } from "./portal/Portal";
+export type { PortalProps } from "./portal/Portal";

@navikt/core/react/src/overlays/portal/Portal.stories.tsx

@@ -0,0 +1,99 @@
+import React from "react";
+import { Box } from "../../layout/box";
+import { Provider } from "../../provider";
+import { Portal } from "./Portal";
+
+export default {
+  title: "Utilities/Portal",
+  parameters: {
+    chromatic: { disable: true },
+  },
+};
+
+export const Default = () => {
+  return (
+    <Box background="surface-neutral-subtle" border>
+      <h1>In regular DOM tree</h1>
+      <p>
+        Lorem ipsum dolor sit amet consectetur adipisicing elit. Temporibus
+        necessitatibus quis esse nesciunt est velit voluptatibus. Distinctio eum
+        commodi tempora unde. Nulla vel tempora incidunt? Voluptatem molestias
+        impedit commodi. Tenetur!
+      </p>
+      <Portal>
+        <h1>Inside Portal to different DOM tree</h1>
+        <p>
+          Lorem ipsum dolor sit amet consectetur adipisicing elit. Temporibus
+          necessitatibus quis esse nesciunt est velit voluptatibus. Distinctio
+          eum commodi tempora unde. Nulla vel tempora incidunt? Voluptatem
+          molestias impedit commodi. Tenetur!
+        </p>
+      </Portal>
+    </Box>
+  );
+};
+
+export const CustomPortalRoot = () => {
+  const [portalContainer, setPortalContainer] =
+    React.useState<HTMLDivElement | null>(null);
+
+  return (
+    <Box background="surface-neutral-subtle">
+      <Box background="surface-alt-1-subtle">
+        <h1>Tree A</h1>
+        <Portal rootElement={portalContainer}>
+          <p>This is mounted to Tree B, while created inside Tree A</p>
+        </Portal>
+      </Box>
+      <Box background="surface-alt-3-subtle" ref={setPortalContainer}>
+        <h1>Tree B</h1>
+      </Box>
+    </Box>
+  );
+};
+
+export const CustomPortalRootFromProvider = () => {
+  const [portalContainer, setPortalContainer] =
+    React.useState<HTMLDivElement>();
+
+  return (
+    <Provider rootElement={portalContainer}>
+      <Box background="surface-neutral-subtle">
+        <Box background="surface-alt-1-subtle">
+          <h1>Tree A</h1>
+          <Portal>
+            <p>This is mounted to Tree B, while created inside Tree A</p>
+          </Portal>
+        </Box>
+        <Box background="surface-alt-3-subtle" ref={setPortalContainer}>
+          <h1>Tree B</h1>
+        </Box>
+      </Box>
+    </Provider>
+  );
+};
+
+export const AsChild = () => {
+  return (
+    <Box background="surface-neutral-subtle" border>
+      <h1>In regular DOM tree</h1>
+      <p>
+        Lorem ipsum dolor sit amet consectetur adipisicing elit. Temporibus
+        necessitatibus quis esse nesciunt est velit voluptatibus. Distinctio eum
+        commodi tempora unde. Nulla vel tempora incidunt? Voluptatem molestias
+        impedit commodi. Tenetur!
+      </p>
+      <Portal asChild>
+        <div data-this-is-the-child>
+          <h1>Inside Portal to different DOM tree</h1>
+          <p>
+            Lorem ipsum dolor sit amet consectetur adipisicing elit. Temporibus
+            necessitatibus quis esse nesciunt est velit voluptatibus. Distinctio
+            eum commodi tempora unde. Nulla vel tempora incidunt? Voluptatem
+            molestias impedit commodi. Tenetur!
+          </p>
+        </div>
+      </Portal>
+    </Box>
+  );
+};

@navikt/core/react/src/overlays/portal/Portal.tsx

@@ -0,0 +1,32 @@
+import React, { HTMLAttributes, forwardRef } from "react";
+import ReactDOM from "react-dom";
+import { useProvider } from "../../provider";
+import { Slot } from "../../util/Slot";
+import { AsChildProps } from "../../util/types";
+
+interface PortalBaseProps extends HTMLAttributes<HTMLDivElement> {
+  /**
+   * An optional container where the portaled content should be appended.
+   */
+  rootElement?: HTMLElement | null;
+}
+
+export type PortalProps = PortalBaseProps & AsChildProps;
+
+export const Portal = forwardRef<HTMLDivElement, PortalProps>(
+  ({ rootElement, asChild, ...rest }, ref) => {
+    const contextRoot = useProvider()?.rootElement;
+    const root = rootElement ?? contextRoot ?? globalThis?.document?.body;
+
+    const Component = asChild ? Slot : "div";
+
+    return root
+      ? ReactDOM.createPortal(
+          <Component ref={ref} data-aksel-portal="" {...rest} />,
+          root,
+        )
+      : null;
+  },
+);
+
+export default Portal;

@navikt/core/react/src/tooltip/Tooltip.tsx

@@ -1,5 +1,4 @@
 import {
-  FloatingPortal,
   autoUpdate,
   arrow as flArrow,
   flip,
@@ -21,7 +20,7 @@ import React, {
   useRef,
 } from "react";
 import { ModalContext } from "../modal/ModalContext";
-import { useProvider } from "../provider";
+import Portal from "../overlays/portal/Portal";
 import { Detail } from "../typography";
 import { useId } from "../util/hooks";
 import { useControllableState } from "../util/hooks/useControllableState";
@@ -123,10 +122,7 @@ export const Tooltip = forwardRef<HTMLDivElement, TooltipProps>(
 
     const arrowRef = useRef<HTMLDivElement | null>(null);
     const modalContext = useContext(ModalContext);
-    const providerRootElement = useProvider()?.rootElement;
-    const rootElement = modalContext
-      ? modalContext.ref.current
-      : providerRootElement;
+    const rootElement = modalContext ? modalContext.ref.current : undefined;
 
     const {
       x,
@@ -199,7 +195,7 @@ export const Tooltip = forwardRef<HTMLDivElement, TooltipProps>(
               : children?.props["aria-describedby"],
           }),
         )}
-        <FloatingPortal root={rootElement}>
+        <Portal rootElement={rootElement}>
           {_open && (
             <div
               {...getFloatingProps({
@@ -253,7 +249,7 @@ export const Tooltip = forwardRef<HTMLDivElement, TooltipProps>(
               )}
             </div>
           )}
-        </FloatingPortal>
+        </Portal>
       </>
     );
   },

@navikt/core/react/src/util/Slot.tsx

@@ -20,10 +20,12 @@ export const Slot = React.forwardRef<HTMLElement, SlotProps>(
     }
 
     if (React.Children.count(children) > 1) {
-      console.error(
+      const error = new Error(
         "Aksel: Components using 'asChild' expects to recieve a single React element child.",
       );
-      return React.Children.only(null);
+      error.name = "SlotError";
+      Error.captureStackTrace?.(error, Slot);
+      throw error;
     }
 
     return null;

@navikt/core/react/src/util/types/AsChildProps.ts

@@ -0,0 +1,37 @@
+export type AsChildProps =
+  | {
+      children: React.ReactElement | false | null;
+      /**
+       * Renders the component and its child as a single element,
+       * merging the props of the component with the props of the child.
+       *
+       * @example
+       * ```tsx
+       * <Component asChild data-prop>
+       *   <ChildComponent data-child />
+       * </Component>
+       *
+       * // Renders
+       * <MergedComponent data-prop data-child />
+       * ```
+       */
+      asChild: true;
+    }
+  | {
+      children: React.ReactNode;
+      /**
+       * Renders the component and its child as a single element,
+       * merging the props of the component with the props of the child.
+       *
+       * @example
+       * ```tsx
+       * <Component asChild data-prop>
+       *   <ChildComponent data-child />
+       * </Component>
+       *
+       * // Renders
+       * <MergedComponent data-prop data-child />
+       * ```
+       */
+      asChild?: false;
+    };

@navikt/core/react/src/util/types/index.ts

@@ -1 +1,2 @@
 export type { OverridableComponent } from "./OverridableComponent";
+export type { AsChildProps } from "./AsChildProps";