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Document comprehensive plan for WCAG 2.1 AA compliance including: - Phase 1: Keyboard support for split bar resizing - Phase 2: Keyboard support for panel drag/drop - Phase 3: Screen reader announcements via live regions - Phase 4: ARIA props and semantic guidance - Phase 5: Focus management utilities - Phase 6: Documentation and accessible examples https://claude.ai/code/session_01ELioHekwWTViQPvEVztwyE
Phase 1 - Keyboard support for split bar resizing: - Add resizePanelByDelta() method to LayoutManager for keyboard-based resize - Add getSplitRatio() and getAdjacentPanelIds() helper methods - Split bars now focusable with Tab, resizable with Arrow keys - Shift+Arrow for larger increments, Home/End for min/max Phase 2 - Keyboard support for panel drag/drop: - Add keyboard move mode activated by Enter/Space on drag handle - Arrow keys cycle through available drop targets - Enter confirms drop, Escape cancels - Visual feedback during keyboard move mode Phase 3 - Live region announcements: - Add announce() function for screen reader messages - Automatic announcements for all layout operations - Panel add/remove, resize, and move operations announced - Drop target navigation announced during keyboard move Phase 4 - ARIA props helpers: - Export getPanelA11yProps() for panel regions - Export getSplitBarA11yProps() with full separator semantics - aria-valuenow, aria-valuemin, aria-valuemax for split bars - aria-controls linking split bars to adjacent panels Phase 5 - Focus management: - Track focusedPanelId state - Automatically focus newly added panels - Move focus to nearest panel when removing - Focus preserved after keyboard drop operations Phase 6 - Demo updates: - Full accessibility implementation in App.tsx - Screen reader announcement region - Visible focus indicators on split bars - Hidden instructions for drag handles - Keyboard usage hints displayed New exports: DropTarget, AnnouncementProps, PanelA11yProps, SplitBarA11yProps https://claude.ai/code/session_01ELioHekwWTViQPvEVztwyE
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Document comprehensive plan for WCAG 2.1 AA compliance including:
https://claude.ai/code/session_01ELioHekwWTViQPvEVztwyE