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This commit fixes the messages view height auto-expansion issue introduced in PR #11142 and improves the UX of both Thinking and CodeBlock components. ## Bug Fix The ThinkingFooter component added in PR #11142 was causing the messages view height to automatically expand. The footer was placed inside the CSS grid's overflow-hidden container, but its presence affected the grid height calculation, causing layout issues during streaming. ## Solution: FloatingThinkingBar Replaced ThinkingFooter with a new FloatingThinkingBar component that: - Uses absolute positioning (bottom-right) like CodeBlock's FloatingCodeBar - Only appears on hover/focus, not affecting layout - Shows expand/collapse button with dynamic icon based on state - Uses TooltipAnchor for accessible tooltips - Supports keyboard navigation by showing when any element in the container is focused (top bar buttons or content) ## Changes ### Thinking.tsx - Added FloatingThinkingBar component with hover/focus visibility - Updated ThinkingContent with additional bottom padding (pb-10) - Added containerRef and hover/focus event handlers on outer container - Removed ThinkingFooter component (replaced by FloatingThinkingBar) ### Reasoning.tsx - Integrated FloatingThinkingBar with same hover/focus pattern - Added containerRef and event handlers on outer container - Supports keyboard navigation through entire component ### CodeBlock.tsx - Updated FloatingCodeBar to show icons only (removed text labels) - Added TooltipAnchor wrapper for copy button with localized tooltips - Improved accessibility with proper aria-label and aria-hidden ### Localization - Added com_ui_expand_thoughts: "Expand Thoughts" ## Accessibility - Full keyboard navigation support: tabbing through ThinkingButton, copy button, and FloatingThinkingBar - TooltipAnchor provides hover tooltips for icon-only buttons - Proper aria-label attributes on all interactive elements - tabIndex management based on visibility state |
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