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This change improves the user experience of the Telemetry Timeline in two ways: 1. **Rich Tooltip:** Replaces the basic date/probability tooltip with a custom-styled card that displays the Event Name, Probability, Outcome, and Subjective notes. This connects the visualization directly to the narrative data, providing immediate context without needing to cross-reference the table. 2. **Accessibility:** Adds `scope="col"` to the table headers (`<th>`) to ensure proper association for screen readers. Modified Files: - `data/telemetry.ts`: Updated `getProbabilityData` to expose `event`, `outcome`, and `subjective` fields. - `components/TelemetryTimeline.tsx`: Implemented `CustomTooltip` and updated table markup. Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
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Summary of ChangesHello @igor-holt, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request significantly improves the user experience and accessibility of the Telemetry Timeline feature. It introduces a detailed, custom tooltip for the chart, allowing users to quickly grasp more context about individual data points. Concurrently, it enhances the semantic structure of the associated data table, making it more accessible for assistive technologies. Highlights
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Code Review
This pull request introduces a valuable enhancement to the Telemetry Timeline by adding a custom, detailed tooltip and improves table accessibility by adding scope=\"col\" to headers. The code is well-structured and the changes are effective. I have one suggestion to improve type safety in the new CustomTooltip component by replacing the any type with a more specific type from the recharts library.
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| } from 'recharts'; | ||
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| const CustomTooltip = ({ active, payload, label }: any) => { |
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To improve type safety and leverage TypeScript's benefits, avoid using any for component props. You can use TooltipProps from recharts to properly type your custom tooltip component. This makes the component more maintainable and easier to understand.
| const CustomTooltip = ({ active, payload, label }: any) => { | |
| const CustomTooltip = ({ active, payload, label }: import('recharts').TooltipProps<number, string>) => { |
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Pull request overview
This PR enhances the Telemetry Timeline component by implementing a rich custom tooltip that displays detailed event information (Event, Probability, Outcome, and Subjective fields) when hovering over data points on the chart. It also improves table accessibility by adding scope="col" attributes to all table headers, following WCAG guidelines.
Changes:
- Extended the data structure returned by
getProbabilityData()to include event, outcome, and subjective fields - Implemented a
CustomTooltipcomponent with styled rendering of all event details - Added accessibility attributes to table header cells
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
| data/telemetry.ts | Extended getProbabilityData() to include event, outcome, and subjective fields in the returned data structure |
| components/TelemetryTimeline.tsx | Added CustomTooltip component with rich formatting and replaced default tooltip; added scope="col" to table headers for accessibility |
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| ResponsiveContainer, | ||
| } from 'recharts'; | ||
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| const CustomTooltip = ({ active, payload, label }: any) => { |
There was a problem hiding this comment.
The CustomTooltip function uses any type for its parameters, which defeats TypeScript's type safety. This is particularly important because the tsconfig.json has "strict": true enabled. Consider defining a proper interface for the tooltip props. Recharts provides types that can be used, or you can define a custom interface like:
interface CustomTooltipProps {
active?: boolean;
payload?: Array<{
payload: {
time: number;
probability: number;
event: string;
outcome: string;
subjective: string;
};
}>;
label?: number;
}This will provide proper type checking and IntelliSense support.
| const CustomTooltip = ({ active, payload, label }: any) => { | |
| interface CustomTooltipProps { | |
| active?: boolean; | |
| payload?: Array<{ | |
| payload: { | |
| time: number; | |
| probability: number; | |
| event: string; | |
| outcome: string; | |
| subjective: string; | |
| }; | |
| }>; | |
| label?: number; | |
| } | |
| const CustomTooltip: React.FC<CustomTooltipProps> = ({ active, payload, label }) => { |
1 participant
Implemented a custom tooltip for the Telemetry Timeline chart to show rich event details (Event, Probability, Outcome, Subjective) and improved table accessibility by adding
scope="col"to headers. Verified changes via static analysis as the dev environment is restricted.PR created automatically by Jules for task 10824587432111725168 started by @igor-holt