Popover

import { Popover, Button } from "@cloudflare/kumo";
import { BellIcon } from "@phosphor-icons/react";

export function PopoverHeroDemo() {
  return (
    <Popover>
      <Popover.Trigger asChild>
        <Button shape="square" icon={BellIcon} aria-label="Notifications" />
      </Popover.Trigger>
      <Popover.Content>
        <Popover.Title>Notifications</Popover.Title>
        <Popover.Description>
          You are all caught up. Good job!
        </Popover.Description>
      </Popover.Content>
    </Popover>
  );
}

Installation

Barrel

import { Popover } from "@cloudflare/kumo";

Granular

import { Popover } from "@cloudflare/kumo/components/popover";

Usage

import { Popover, Button } from "@cloudflare/kumo";

export default function Example() {
  return (
    <Popover>
      <Popover.Trigger asChild>
        <Button>Open</Button>
      </Popover.Trigger>
      <Popover.Content>
        <Popover.Title>Popover Title</Popover.Title>
        <Popover.Description>Popover content goes here.</Popover.Description>
      </Popover.Content>
    </Popover>
  );
}

While popovers can be triggered on hover (using openOnHover), they serve a different purpose than tooltips. Understanding when to use each is important for accessibility and user experience.

	Tooltip	Popover
Purpose	Short, non-interactive text labels for identification	Rich, interactive content containers
Content	Plain text only	Any content: links, buttons, forms, images
Trigger	Hover or focus	Click (default) or hover
ARIA Role	`role=“tooltip”`	`aria-haspopup`
Keyboard	Not focusable	Focus moves inside, traps when open

Use a Tooltip when you need to label an icon button or provide a brief explanation. Use a Popover when users need to interact with the content inside, such as clicking links, filling out forms, or dismissing with a button.

Examples

import { Popover, Button } from "@cloudflare/kumo";

export function PopoverBasicDemo() {
  return (
    <Popover>
      <Popover.Trigger asChild>
        <Button>Open Popover</Button>
      </Popover.Trigger>
      <Popover.Content>
        <Popover.Title>Popover Title</Popover.Title>
        <Popover.Description>
          This is a basic popover with a title and description.
        </Popover.Description>
      </Popover.Content>
    </Popover>
  );
}

With Close Button

import { Popover, Button } from "@cloudflare/kumo";

export function PopoverWithCloseDemo() {
  return (
    <Popover>
      <Popover.Trigger asChild>
        <Button>Open Settings</Button>
      </Popover.Trigger>
      <Popover.Content>
        <Popover.Title>Settings</Popover.Title>
        <Popover.Description>
          Configure your preferences below.
        </Popover.Description>
        <div className="mt-3">
          <Popover.Close asChild>
            <Button variant="secondary" size="sm">
              Close
            </Button>
          </Popover.Close>
        </div>
      </Popover.Content>
    </Popover>
  );
}

Positioning

Use the side prop to control where the popover appears relative to the trigger.

import { Popover, Button } from "@cloudflare/kumo";

export function PopoverPositionDemo() {
  return (
    <div className="flex flex-wrap gap-4">
      <Popover>
        <Popover.Trigger asChild>
          <Button variant="secondary">Bottom</Button>
        </Popover.Trigger>
        <Popover.Content side="bottom">
          <Popover.Title>Bottom</Popover.Title>
          <Popover.Description>
            Popover on bottom (default).
          </Popover.Description>
        </Popover.Content>
      </Popover>

      <Popover>
        <Popover.Trigger asChild>
          <Button variant="secondary">Top</Button>
        </Popover.Trigger>
        <Popover.Content side="top">
          <Popover.Title>Top</Popover.Title>
          <Popover.Description>Popover on top.</Popover.Description>
        </Popover.Content>
      </Popover>

      <Popover>
        <Popover.Trigger asChild>
          <Button variant="secondary">Left</Button>
        </Popover.Trigger>
        <Popover.Content side="left">
          <Popover.Title>Left</Popover.Title>
          <Popover.Description>Popover on left.</Popover.Description>
        </Popover.Content>
      </Popover>

      <Popover>
        <Popover.Trigger asChild>
          <Button variant="secondary">Right</Button>
        </Popover.Trigger>
        <Popover.Content side="right">
          <Popover.Title>Right</Popover.Title>
          <Popover.Description>Popover on right.</Popover.Description>
        </Popover.Content>
      </Popover>
    </div>
  );
}

Custom Content

Popovers can contain any content, including custom layouts with avatars, buttons, and more.

import { Popover, Button } from "@cloudflare/kumo";

export function PopoverCustomContentDemo() {
  return (
    <Popover>
      <Popover.Trigger asChild>
        <Button>User Profile</Button>
      </Popover.Trigger>
      <Popover.Content className="w-64">
        <div className="flex items-center gap-3">
          <div className="size-10 rounded-full bg-kumo-recessed" />
          <div>
            <Popover.Title>Jane Doe</Popover.Title>
            <p className="text-sm text-kumo-subtle">jane@example.com</p>
          </div>
        </div>
        <div className="mt-3 flex gap-2 border-t border-kumo-line pt-3">
          <Button variant="secondary" size="sm" className="flex-1">
            Profile
          </Button>
          <Popover.Close asChild>
            <Button variant="ghost" size="sm" className="flex-1">
              Sign Out
            </Button>
          </Popover.Close>
        </div>
      </Popover.Content>
    </Popover>
  );
}

Open on Hover

Use openOnHover on the trigger to open the popover when the user hovers over it. You can also specify a delay in milliseconds before the popover appears.

import { Popover, Button } from "@cloudflare/kumo";

export function PopoverOpenOnHoverDemo() {
  return (
    <Popover>
      <Popover.Trigger openOnHover delay={200} asChild>
        <Button variant="secondary">Hover Me</Button>
      </Popover.Trigger>
      <Popover.Content>
        <Popover.Title>Hover Triggered</Popover.Title>
        <Popover.Description>
          This popover opens on hover with a 200ms delay. It can still contain
          interactive content like buttons and links.
        </Popover.Description>
        <div className="mt-3">
          <Popover.Close asChild>
            <Button variant="secondary" size="sm">
              Got it
            </Button>
          </Popover.Close>
        </div>
      </Popover.Content>
    </Popover>
  );
}

API Reference

The root component that manages the popover’s open state.

Prop	Type	Default	Description
side	`"top" \| "bottom" \| "left" \| "right"`	`"bottom"`	Which side of the trigger the popover appears on. - `"top"` — Above the trigger - `"bottom"` — Below the trigger - `"left"` — Left of the trigger - `"right"` — Right of the trigger