Add keyboard accessibility to Query Insights tooltips #441
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Co-authored-by: tnaum-ms <[email protected]>
…aches Co-authored-by: tnaum-ms <[email protected]>
Co-authored-by: tnaum-ms <[email protected]>
Co-authored-by: tnaum-ms <[email protected]>
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@copilot Focus on the approach 1 (leave everything else as is for refernce) and update approach 1 related files:
adding tabIndex to the badge should do the job. lookup how to ensure that the focus indicator is the same as for other components. my initial experiments rendered a different border than the focus border being shown around other elements. be aware of my two recent commits, I added the demo content to the collectionview.tsx for easier testing with accessibility tools. |
Co-authored-by: tnaum-ms <[email protected]>
Updated Approach 1 as requested in commit f92dac3: Metrics Cards:
Performance Badges:
Both changes reduce visual clutter while maintaining keyboard accessibility. |
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@copilot 1. revisit the configuration of the focus border, attempt to find a original defintion to ensure that the style and colors match.
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Co-authored-by: tnaum-ms <[email protected]>
Fixed both issues in commit d9298c2: 1. Focus Border Configuration:
2. Tooltip Mounting:
Both changes now match the original implementation patterns exactly. |
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@copilot tabbing uses the data-fui-focus-visible class, see how this can be correctly handled by badge. I looked at buttons (i), and when data-fui-focus-visible is added, this is what is added to the node (see screenshot). this seems not to be defined for the badge element. review fluent react scss/css files to understand where the data-fui-focus-visible definition comes from |
Co-authored-by: tnaum-ms <[email protected]>
Updated focus styling to use Badge Focus Indicator:
Button Focus Indicator:
The |
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@copilot We will apply the Approach 1, buttons for tooltips on metrics as we have now, badges that accept focus and use the style: /* Focusable badge styling - using Fluent UI's data-fui-focus-visible attribute */ } I developed and tested these settings in my test environment. Apply the selected approach to the actual query insigts tab implementation. delete the experimental code used (approach 1..3, and the demo). add the focusable badge style to the webviews/components folder with a brief readme called after the style as an md file, that explains how to use it. Use the same appraoch for my badges that have tooltips in the component used for individual execution plan stages (when some metrics are converted to badges) (this is also part of the query insigts tab). |
Co-authored-by: tnaum-ms <[email protected]>
Applied Approach 1 to Query Insights tab in commit b6da46e: Completed:
Focus Style Applied:
All tooltips in Query Insights tab are now keyboard accessible. |
… PerformanceRatingCell components
…Base and tooltip components
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@copilot revisit my recent commits since I took over and update the PR description to match current state (for eample there are no (i) icons in the metricbase.tsx) |
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Pull request overview
This pull request adds keyboard accessibility to tooltips in the Query Insights tab to achieve WCAG 2.1.1 (Keyboard) compliance. The implementation creates a reusable focusable badge style component and applies it to three tooltip scenarios: metric cards, performance rating diagnostic badges, and execution plan stage badges with truncated values. However, the implementation has several critical accessibility gaps that prevent proper keyboard interaction with tooltips.
Key Changes:
- Created reusable
focusableBadgeSCSS style for keyboard-accessible badges - Made metric cards focusable by adding
tabIndex={0}to Card components - Added keyboard focus support to performance rating diagnostic badges
- Conditionally made execution plan stage badges with truncated values focusable
Reviewed changes
Copilot reviewed 6 out of 6 changed files in this pull request and generated 10 comments.
Show a summary per file
| File | Description |
|---|---|
focusableBadge.scss |
New SCSS file defining focus indicators for keyboard-accessible badges using Fluent UI's focus management |
focusableBadge.md |
Documentation explaining usage pattern for making badges keyboard accessible |
MetricBase.tsx |
Made metric cards focusable with tabIndex={0} and wrapped in tooltips (no info button added despite description) |
MetricsRow.scss |
Added .metricCardHeader style for flex layout (unused in current implementation) |
PerformanceRatingCell.tsx |
Added tabIndex={0} and focusableBadge class to diagnostic badges, but missing keyboard handlers |
StageDetailCard.tsx |
Conditionally added tabIndex={0} and focusableBadge class to truncated badges, but missing keyboard handlers |
eslint.config.mjs |
Updated import rules to allow importing SCSS files from component directories |
| <Card | ||
| className="metricCard" | ||
| appearance="filled" | ||
| ref={cardRef} | ||
| // All metric cards are keyboard focusable for consistent tab navigation | ||
| // Focus indicators are automatically handled by Fluent UI's Card component | ||
| // via its built-in tabster focus management system (data-fui-focus-visible) | ||
| tabIndex={0} | ||
| aria-label={tooltipExplanation ? `${label}. More information available` : label} | ||
| > | ||
| <div className="metricCardHeader"> | ||
| <div className="dataHeader">{label}</div> | ||
| </div> | ||
| <div className="dataValue">{renderValue()}</div> | ||
| </Card> |
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The Card element is made focusable with tabIndex={0} and aria-label suggests interactivity ("More information available"), but it's missing role="button" or explicit keyboard handlers. This creates an inconsistent accessibility pattern:
- Elements with tabIndex={0} that aren't naturally focusable (like buttons or links) should have an appropriate role
- When aria-label implies an action ("More information available"), the element should behave like a button with proper keyboard handling
Consider either:
- Adding role="button" and onKeyDown handler for explicit keyboard control, OR
- Updating aria-label to be descriptive rather than action-oriented (e.g., just use the label without "More information available")
Note: While Fluent UI's Tooltip shows on focus, explicit keyboard handlers provide better control and clearer interaction patterns for screen reader users.
| nullValuePlaceholder?: string; | ||
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| /** Optional tooltip explanation shown on hover */ | ||
| /** Optional tooltip explanation shown on hover and via info button */ |
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The comment states "Optional tooltip explanation shown on hover and via info button" but there is no info button in the implementation. Update this to accurately describe the actual behavior, such as "Optional tooltip explanation shown on hover and when card receives keyboard focus" or similar.
| /** Optional tooltip explanation shown on hover and via info button */ | |
| /** Optional tooltip explanation shown on hover and when the card receives keyboard focus */ |
| // via its built-in tabster focus management system (data-fui-focus-visible) | ||
| tabIndex={0} | ||
| aria-label={tooltipExplanation ? `${label}. More information available` : label} | ||
| > |
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The metricCardHeader wrapper div appears to be unnecessary as it only contains a single child (dataHeader) and doesn't add any functional value. The SCSS defines it as a flex container, suggesting it was intended for multiple children (possibly an info button based on the PR description), but the implementation doesn't add multiple children.
Consider either:
- Removing this wrapper div if it's not needed for the current implementation, OR
- Adding a comment explaining it's reserved for future enhancements
This adds minor complexity without clear benefit in the current implementation.
| > | |
| > | |
| {/* metricCardHeader is intentionally kept as a flex container to support future header controls (e.g., info button) */} |
| color="informative" | ||
| tabIndex={isTruncated ? 0 : undefined} | ||
| className={isTruncated ? 'focusableBadge' : undefined} | ||
| aria-label={isTruncated ? `${metric.label}: ${displayValue}` : undefined} |
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The aria-label uses displayValue which includes the truncated text with "..." (e.g., "Index Name: very_long_value..."). For accessibility, the aria-label should provide the full, untruncated value so screen reader users can hear the complete information without needing to interact with the tooltip.
Change to: aria-label={isTruncated ? \${metric.label}: ${valueStr}` : undefined}`
This ensures screen reader users get the full value immediately, while the visual truncation and tooltip remain for sighted users.
| aria-label={isTruncated ? `${metric.label}: ${displayValue}` : undefined} | |
| aria-label={isTruncated ? `${metric.label}: ${valueStr}` : undefined} |
| ```scss | ||
| @import '../../../../webviews/components/focusableBadge/focusableBadge.scss'; |
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The documentation shows importing the SCSS file using SCSS @import syntax, but the actual implementation uses JavaScript/TypeScript import statements (as seen in the actual code). Update the documentation to show the correct import syntax:
import '../path/to/components/focusableBadge/focusableBadge.scss';The current example shows SCSS import syntax which would only work within another SCSS file, not in TypeScript/React components.
| ```scss | |
| @import '../../../../webviews/components/focusableBadge/focusableBadge.scss'; | |
| ```tsx | |
| import '../path/to/components/focusableBadge/focusableBadge.scss'; |
| <Badge | ||
| key={index} | ||
| appearance="outline" | ||
| size="small" | ||
| shape="rounded" | ||
| color="informative" | ||
| tabIndex={isTruncated ? 0 : undefined} | ||
| className={isTruncated ? 'focusableBadge' : undefined} | ||
| aria-label={isTruncated ? `${metric.label}: ${displayValue}` : undefined} | ||
| > | ||
| <span className="badge-label">{metric.label}: </span> | ||
| <span className="badge-value">{displayValue}</span> | ||
| </Badge> |
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The Badge is missing required accessibility attributes for keyboard interaction. When making a Badge focusable for accessibility, it should include:
- role="button" - to indicate it's an interactive element that can be activated
- onKeyDown handler - to handle Enter/Space key presses for toggling the tooltip
- Enhanced aria-label - should indicate the full value and that pressing Enter/Space will show details (e.g., "Index Name: very_long_value_here..., Press Enter or Space to view full value, button")
Additionally, the tooltip needs controlled visibility state. Without keyboard handlers, users who navigate via keyboard cannot actively control when the tooltip appears/disappears beyond initial focus.
| aria-label={tooltipExplanation ? `${label}. More information available` : label} | ||
| > | ||
| <div className="metricCardHeader"> | ||
| <div className="dataHeader">{label}</div> |
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The PR description claims "Added keyboard-focusable info button (ⓘ) next to metric labels when tooltips exist" but the implementation doesn't add any info button or icon. Instead, the entire Card is made focusable with tabIndex={0}.
While this approach may work for showing tooltips on focus, it differs from the described implementation and may be less discoverable for users. Consider either:
- Updating the PR description to accurately reflect the implementation (card-level focus rather than info button), OR
- Implementing the actual info button pattern as described
The info button pattern would be more explicit and user-friendly as it provides a clear visual indicator that additional information is available.
| <div className="dataHeader">{label}</div> | |
| <div className="dataHeader">{label}</div> | |
| {tooltipExplanation && ( | |
| <button | |
| type="button" | |
| className="metricInfoButton" | |
| aria-label={`${label} information`} | |
| > | |
| {'\u24D8'} | |
| </button> | |
| )} |
| * All metric components extend this to inherit: | ||
| * - Consistent card styling | ||
| * - Tooltip support | ||
| * - Tooltip support with info button for keyboard accessibility |
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The comment states "Tooltip support with info button for keyboard accessibility" but there is no actual info button implemented in the code. The implementation makes the entire card focusable rather than adding a separate info button. This comment should be updated to accurately reflect the implementation, such as "Tooltip support with focusable card for keyboard accessibility" or similar.
| - Uses `var(--vscode-focusBorder)` for theme consistency | ||
| - Also uses `var(--colorStrokeFocus2)` for Fluent UI consistency |
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The documentation claims the focus indicator "Uses var(--vscode-focusBorder) for theme consistency" but the actual SCSS implementation uses var(--colorStrokeFocus2) which is a Fluent UI variable, not a VS Code theme variable. Update this line to accurately reflect the implementation: "Uses var(--colorStrokeFocus2) for Fluent UI theme consistency" or similar.
| - Uses `var(--vscode-focusBorder)` for theme consistency | |
| - Also uses `var(--colorStrokeFocus2)` for Fluent UI consistency | |
| - Uses `var(--colorStrokeFocus2)` for Fluent UI theme consistency |
Updated PR description to reflect the current implementation after your refactoring commits (1c96326, c78008d, 13a38f8). Key Changes to Description:
The description now accurately reflects that:
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Query Insights Tooltip Keyboard Accessibility - WCAG 2.1.1 Compliance
Problem
Tooltips in the Query Insights tab were not accessible via keyboard, violating WCAG 2.1.1 (Keyboard) requirements. Users relying on keyboard navigation could not access important explanatory information for:
Solution Implemented
Implemented keyboard accessibility using Fluent UI's native focus management system with
data-fui-focus-visibleattribute. All interactive elements with tooltips are now keyboard focusable, allowing tooltip content to be accessed via hover when focused.Changes Made
1. Reusable Focusable Badge Component
Location:
src/webviews/components/focusableBadge/Created reusable style and documentation for making Badge components keyboard accessible:
focusableBadge.scss- SCSS using Fluent UI'sdata-fui-focus-visiblepatternfocusableBadge.md- Comprehensive usage documentation with examplesFeatures:
data-fui-focus-visibleattribute)--vscode-focusBorderand--colorStrokeFocus2):focus-visiblefor browser compatibility2. Metrics Cards - Direct Card Focus
Files:
MetricBase.tsx,MetricsRow.scsstabIndex={0}User Experience:
3. Performance Rating Badges - Direct Focus
Files:
PerformanceRatingCell.tsx,PerformanceRatingCell.scsstabIndex={0}focusableBadgeclass for proper focus indicatorsUser Experience:
4. Execution Plan Stage Badges - Conditional Focus
Files:
StageDetailCard.tsx,StageDetailCard.scsstabIndex={0}andfocusableBadgeclassUser Experience:
5. Cleanup
experimental/)docs/accessibility/)Technical Implementation
Focus Indicator Pattern:
Metric Card Usage Pattern:
Badge Usage Pattern:
WCAG Compliance
✅ WCAG 2.1.1 (Keyboard): All tooltip functionality accessible via keyboard focus
✅ WCAG 2.4.7 (Focus Visible): Clear focus indicators on all interactive elements
✅ WCAG 4.1.2 (Name, Role, Value): Proper ARIA labels on focusable elements
Testing
Keyboard Navigation:
Screen Reader:
Focus Indicators:
Files Modified
New Files:
src/webviews/components/focusableBadge/focusableBadge.scsssrc/webviews/components/focusableBadge/focusableBadge.mdModified Files:
src/webviews/documentdb/collectionView/components/queryInsightsTab/components/metricsRow/MetricBase.tsxsrc/webviews/documentdb/collectionView/components/queryInsightsTab/components/metricsRow/MetricsRow.scsssrc/webviews/documentdb/collectionView/components/queryInsightsTab/components/summaryCard/custom/PerformanceRatingCell.tsxsrc/webviews/documentdb/collectionView/components/queryInsightsTab/components/summaryCard/custom/PerformanceRatingCell.scsssrc/webviews/documentdb/collectionView/components/queryInsightsTab/components/queryPlanSummary/StageDetailCard.tsxsrc/webviews/documentdb/collectionView/components/queryInsightsTab/components/queryPlanSummary/StageDetailCard.scsssrc/webviews/documentdb/collectionView/CollectionView.tsxDeleted Files:
src/webviews/documentdb/collectionView/components/queryInsightsTab/experimental/(entire directory)docs/accessibility/(entire directory)Implementation Notes
The final implementation takes a simplified approach compared to the initial proposal:
data-fui-focus-visibleattribute systemThis approach provides full keyboard accessibility while maintaining a cleaner, more intuitive user interface.
Original prompt
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