feat(splitter): add resizable two-pane Splitter component + useResponsiveSplitterSizes hook#1560

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ByronDWall merged 51 commits into

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FEC-977-nimbus-create-splitter-component-for-resizable-two-pane-layouts

Jun 11, 2026

Commits on Jun 11, 2026

feat(window-splitter): introduce WindowSplitter component with slots and context management

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refactor(window-splitter): reorganize context hook and update exports

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feat(window-splitter): add documentation for Window Splitter component

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feat(window-splitter): enhance stories and add keyboard interaction tests

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feat(window-splitter): enhance story visuals and improve accessibility

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fix(window-splitter): improve focus handling and accessibility in stories

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feat(window-splitter): update stories for improved styling and accessibility

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feat(window-splitter): enhance styling and positioning of window splitter components

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docs(splitter): add OpenSpec proposal for Splitter component

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refactor(splitter): rename WindowSplitter to Splitter and update examples

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docs(splitter): revise OpenSpec for 2-pane shape with id-keyed configuration

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feat(splitter): implement spec-aligned id-keyed Splitter + useSplitterLayout

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feat(splitter): enhance handle positioning and accessibility for Splitter component

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refactor(splitter): double-click restores defaults; Enter remains collapse toggle

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feat(splitter): enhance Splitter component with improved collapse behavior and documentation updates

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refactor(splitter): align file organization and responsibilities with guidelines

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fix(splitter): 2-pane single-value persistence + a11y timing + N-pane residue sweep

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refactor(splitter): reshape API for coherence (pre-release)

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docs(splitter): conform overview/implementation/accessibility pages to guidelines

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fix(splitter): drop disabled cursor/opacity on the invisible handle

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refactor(splitter): rename disableDoubleClick → isDoubleClickDisabled

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docs(splitter): promote to Beta; fix Handle id JSDoc contradiction

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docs(splitter): rewrite changeset to conform to changeset conventions

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docs(splitter): tighten changeset to a high-level component summary

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chore(splitter): remove architectural-inconsistencies-audit.md

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docs(splitter): clarify the defaultSizes/panes lifecycle split

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docs(splitter): rewrite change artifacts to describe the final state

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fix(splitter): address review feedback on ARIA bounds and collapse

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test(splitter): add controlled-collapse + double-click restore regression

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fix(splitter): lock resizing while a pane is collapsed

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docs(splitter): reorganize MDX docs and cover every prop

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refactor(splitter): extract handle resize, keyboard, and ARIA-bounds logic

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feat(splitter): add opt-in, settle-only controlled sizes prop

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docs(splitter): trim excessive implementation-detail comments

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docs(splitter): align component-file JSDoc with house style

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fix(splitter): satisfy OpenSpec validation on controlled-sizes requirement

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feat(splitter): simplify to single-dimension Aside/Main API

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fix(splitter): seed initial size synchronously to avoid first-paint flash

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docs(splitter): propose responsive pixel/token sizes hook

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feat(splitter): add useResponsiveSplitterSizes hook

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refactor(splitter): drop resolveAgainst from responsive sizes hook

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fix(splitter): emit synchronously-resolvable size on first render

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test(splitter): cover object-notation min/max, vertical axis, responsive story

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docs(splitter): add interactive nested-splitter story for the responsive hook

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docs(splitter): note useResponsiveSplitterSizes in the changeset

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docs(splitter): add localStorage persistence demo story for the responsive hook

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docs(splitter): use literal Aside/Main labels in stories, docs, and examples
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docs(splitter): use design tokens in all examples and hook configs
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fix(splitter): carry forward sub-tolerance drag remainder
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fix(splitter): fix prettier formatting in stories
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fix(splitter): resolve PR review comments and CI build errors
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