feat(workspace): implement comprehensive keyboard navigation and multi-cell range selection in DataGrid - #664
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…i-cell range selection in DataGrid - Add _navigateCell, _jumpToCell, and _selectAll in ResultGridView - Bind Arrow keys (Up, Down, Left, Right) and Shift+Arrows for multi-cell range selection - Bind Home, End, Ctrl+Home, Ctrl+End, PageUp, PageDown, and Ctrl+A / Meta+A - Implement _scrollToCell for auto-scrolling active cells into viewport view - Add widget tests covering cell keyboard navigation, range selection, and shortcuts Closes #662
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This was referenced Aug 30, 2026
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Description
Resolves #662 by implementing full keyboard navigation and rectangular range selection in
VirtualResultGrid:Cell Navigation:
ArrowDown,ArrowUp,ArrowRight,ArrowLeftmove the active cell selection.Shift + Arrowkeys extend the rectangular cell selection range.Home/Endjump to first / last column.Ctrl+Home/Ctrl+End(orMeta+Home/Meta+End) jump to first / last cell in dataset.PageUp/PageDownstep by viewport height.Ctrl+A/Meta+Aselects all cells in the table.Auto-Scroll Into View:
_scrollToCell(int row, int col)ensuring that keyboard navigation automatically brings off-screen cells into visible viewport.Testing:
test/features/workspace/grid_keyboard_navigation_test.dartcovering arrow navigation, range expansion with shift, table select all, and jump navigation.Closes #662