Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Ensure anchored components are properly stacked on top of Dialog components #3111

Merged
merged 2 commits into from
Apr 19, 2024

Conversation

RobinMalfait
Copy link
Collaborator

When you render a Listbox in a Dialog, then clicking outside of the Listbox will only close the Listbox and not the Dialog.

This is because the Listbox is rendered inside the Dialog, and the useOutsideClick hook will prevent the event from propagating to the Dialog therefore it stays open.

Then, if you add the anchor prop to the ListboxOptions then a few things will happen:

  1. We will render the ListboxOptions in a Modal, which portals the component to the end of the body (aka, it won't be in the Dialog anymore).
  2. The anchor prop, will use Floating UI to position the element correctly.

If you now click outside of the open Listbox, then the Dialog will receive the click event (because it is rendered somewhere else in the DOM) and therefore the Listbox and the Dialog will close.

The Dialog also uses a StackProvider to know if it is the top-level Dialog or not. The problem is that the Modal doesn't use that StackProvider to tell the Dialog that something is stacked on top of the current Dialog.

That's what this commit fixes, the Modal will now use a StackProvider to tell the Dialog that it's not the top-most element anymore so it shouldn't enable the useOutsideClick behavior.

That said, this is one of the things that will be changed in the future to make "parallel" dialogs possible. Essentially, we will track a global stack and the top-most element (last one that was "opened") will win.

Then hooks such as useOutsideClick and useScrollLock will use that information to know if they should undo scroll locking for example if another element is still open.

Fixes: #3108

When you render a `Listbox` in a `Dialog`, then clicking outside of the
`Listbox` will only close the `Listbox` and not the `Dialog`.

This is because the `Listbox` is rendered _inside_ the `Dialog`, and the
`useOutsideClick` hook will prevent the event from propagating to the
`Dialog` therefore it stays open.

Then, if you add the `anchor` prop to the `ListboxOptions` then a few
things will happen:

1. We will render the `ListboxOptions` in a `Modal`, which portals the
   component to the end of the `body` (aka, it won't be in the `Dialog`
   anymore).
2. The `anchor` prop, will use Floating UI to position the element
   correctly.

If you now click outside of the open `Listbox`, then the `Dialog` will
receive the click event (because it is rendered somewhere else in the
DOM) and therefore the `Listbox` **and** the `Dialog` will close.

The `Dialog` also uses a `StackProvider` to know if it is the top-level
`Dialog` or not. The problem is that the `Modal` doesn't use that
`StackProvider` to tell the `Dialog` that something is stacked on top of
the current `Dialog`.

That's what this commit fixes, the `Modal` will now use a
`StackProvider` to tell the `Dialog` that it's not the top-most element
anymore so it shouldn't enable the `useOutsideClick` behavior.

That said, this is one of the things that will be changed in the future
to make "parallel" dialogs possible. Essentially, we will track a global
stack and the top-most element (last one that was "opened") will win.

Then hooks such as `useOutsideClick` and `useScrollLock` will use that
information to know if they should undo scroll locking for example if
another element is still open.
Copy link

vercel bot commented Apr 19, 2024

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name Status Preview Comments Updated (UTC)
headlessui-react ✅ Ready (Inspect) Visit Preview 💬 Add feedback Apr 19, 2024 4:01pm
headlessui-vue ✅ Ready (Inspect) Visit Preview 💬 Add feedback Apr 19, 2024 4:01pm

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

[insiders] Clicking outside an anchored Listbox menu inside a Dialog closes the dialog
2 participants