My diagnosis in the previous commit was wrong. The component root was not
being replaced by a reactive re-render: the client router owns popstate and
swaps the whole page shell on back and forward, which discards component
state entirely. Every mechanism that tried to push state into the component
from outside was therefore doomed -- clicking a tab, announcing an event,
tracking the last applied value.
In url mode the query parameter is now simply the source of truth, read where
the selection is computed. Whatever render happens next produces the right
tab, with no listener to lose and nothing to keep in step.
This deletes the runtime tab sync entirely -- 1590 bytes -- and fixes the
back/forward cases that were previously broken. Verified in the showcase:
click writes the url, two backs and two forwards each land on the right tab,
and a ?tab= deep link opens on it.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Two mechanisms tried and rejected while testing this against the live
showcase, both failing the same way on a second history step:
- synthesising a click on the matching tab: a re-render replaces the tab
buttons, and clicking a freshly replaced node that has not been bound
does nothing at all
- tracking the last applied value in the runtime: that state drifts out of
step with the component and silently swallows real changes
The runtime is now stateless. It announces the value the URL names via a
wrnexus:tabs:restore event and the component applies it, comparing against
its own selection rather than a DOM attribute a re-render owns.
Nav submenus are anchored so the viewport clamp keeps them on screen.
Comments in the runtime template trimmed to stay inside the size budget
rather than raising the ceiling again.
Known limitation: a second consecutive back/forward does not update the
selection, because the re-render replaces the component root without
rebinding its declarative listeners. That is a framework defect, not a Tabs
one, and needs its own fix.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Tabs was the only component in the library styled with Tailwind utilities, so
it could not be themed like the rest and assumed Tailwind was present. It also
fired raw CustomEvents instead of declaring outputs, and set a roving tabindex
with no keydown handler at all -- which left every inactive tab unreachable by
Tab while the arrows did nothing.
It now uses wire-* classes and a local style block, declares change and select
outputs, and opts into the roving runtime.
mode=url mirrors the selection into a query parameter via pushState. Back and
forward are handled in the runtime, which activates the matching tab rather
than assigning to component state: a popstate listener writing state would be
writing after the client function returned, and that write is dropped. The
round trip is marked so the component does not push a second history entry for
a navigation that came from history.
Also anchors Nav submenus so the viewport clamp can pull them back on screen.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
ClintchizandClaude Opus 5