v1.16.1

Patch Changes

• #80 489969f Thanks @MikeNotThePope! - Fix Resizable against react-resizable-panels 4

  The component was written for the v2 API and never updated, so two things were
  wrong once v4 was installed:

  • The vertical layout was unstyled. Both ResizablePanelGroup and
    ResizableHandle keyed their vertical variants off
    data-panel-group-direction, an attribute v4 no longer emits. A handle in a
    vertical group came out 1px wide and full height — a vertical rule where a
    horizontal one belonged — and its widened drag target ran the wrong way too.
    Both now read the separator's own aria-orientation, which v4 does set, and
    the grip pill turns to lie along the rule.
  • ResizablePanelGroup restated flex and flex-direction in classes. v4 sets
    both inline from orientation, so the class was dead and the group's real
    axis could disagree with the one being styled for.

  ResizablePanelGroup also no longer applies h-full w-full. The library writes
  height: 100%; width: 100% inline, which beats any class — so a className of
  h-48 never worked here, and keeping a class that tailwind-merge would happily
  replace made it look as though it should. Size the group by sizing its parent.

  Callers on the v4 API are unaffected. If you are still passing v2 prop names —
  direction, autoSaveId, onLayout, or a percentage className height — those
  were already being ignored; the new docs page covers what replaces them.

• #80 489969f Thanks @MikeNotThePope! - ScrollArea now renders a horizontal scrollbar as well as a vertical one

  Horizontally overflowing content scrolled, but with no styled bar — the root is
  overflow-hidden, so the native one was clipped and the themed one was never
  rendered. There was also no way for a caller to add it: ScrollArea puts its
  children inside the viewport, so a <ScrollBar orientation="horizontal" />
  passed in would have scrolled along with the content rather than framing it.

  Both bars are now assembled inside the component. Base UI drops the bar for an
  axis that doesn't overflow, so a vertical-only scroll area is unchanged and the
  unused bar costs nothing.

  ScrollBar stays exported for composing Base UI's primitives directly.

• #80 489969f Thanks @MikeNotThePope! - Mirror the submenu chevrons in RTL

  ContextMenuSubTrigger, DropdownMenuSubTrigger, and MenubarSubTrigger each
  draw a ChevronRight to say a submenu opens that way. The submenu itself is
  positioned logically and opens leftward in an RTL locale, but the chevron kept
  pointing right — the indicator contradicted the thing it indicates.

  All three now carry rtl:-scale-x-100, which is what
  docs/rtl-icon-audit.md has classified them as needing since it was written.
  The chevrons were already positioned with ms-auto, so nothing else moves.