[Prakhar1Ojha]

Brief Information

This pull request is in the type of:

• bug fixing
• new feature
• others

What does this PR do?

Add axis context properties (axisDim, axisIndex, axisType, axisId, axisValue, axisValueLabel) to the public CallbackDataParams type definition.

Fixed issues

• close [Bug] CallbackDataParams type doesn't have axisValue, axisValueLabel properties #17561

Details

Before: What was the problem?

At runtime, whenever tooltips or formatters are invoked in an axis context (e.g., trigger: 'axis'), ECharts populates axis context properties onto callback parameters (axisDim, axisIndex, axisType, axisId, axisValue, and axisValueLabel in src/component/tooltip/TooltipView.ts:587-595).

However, the public TypeScript interface CallbackDataParams in src/util/types.ts omitted these optional properties. As a consequence, TypeScript users writing custom formatter functions (such as formatter: (params: CallbackDataParams) => ...) experienced compile-time errors: Property 'axisValueLabel' does not exist on type 'CallbackDataParams'.

After: How does it behave after the fixing?

1. Declares optional axisDim, axisIndex, axisType, axisId, axisValue, and axisValueLabel properties on CallbackDataParams in src/util/types.ts.
2. Simplifies TooltipCallbackDataParams in src/component/tooltip/TooltipView.ts to directly alias CallbackDataParams.
3. Adds unit tests in test/ut/spec/util/types.test.ts verifying that axisValue and axisValueLabel can be accessed on CallbackDataParams without compiler or runtime diagnostics.

Document Info

• This PR doesn't relate to document changes

Misc

Security Checking

• This PR uses security-sensitive Web APIs.

ZRender Changes

• This PR depends on ZRender changes (ecomfe/zrender#xxx).

Related test cases or examples to use the new APIs

• test/ut/spec/util/types.test.ts

Merging options

• Please squash the commits into a single one when merging.

Other information

• npm run checktype: passed (0 errors)
• npm run checkheader: passed (0 errors)
• npm run lint: passed (0 errors, 0 warnings)

[echarts-bot]

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