100pah opened a new pull request #14473:
URL: https://github.com/apache/echarts/pull/14473
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## Brief Information
This pull request is in the type of:
- [x] bug fixing
- [x] new feature
- [ ] others
### What does this PR do?
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## Details
+ Make component tooltip inherit cascade correct: itemOption.tooltip ->
componentOption.tooltip -> globalOption.tooltip
(previous incorrect cascade: itemOption.tooltip -> globalOption.tooltip
+ Enable trigger component tooltip by
```js
chart.dispatchAction({
type: 'showTip',
toolboxIndex: 0,
name: 'someTootboxItemName'
});
// or
chart.dispatchAction({
type: 'showTip',
legendId: 'legend_id',
name: 'someLegendItemName'
});
```
To make (2) happen, this commit migrate `ECElement['tooltip']` to
ECData['tooltipConfig']['option'],
and add other info in ECData['tooltipConfig']:
```ts
interface ECData {
// ...
tooltipConfig?: {
// Used to find component tooltip option, which is used as
// the parent of tooltipConfig.option for cascading.
// If not provided, do not use component as its parent.
// (Set manatary to make developers not to forget them).
componentMainType: ComponentMainType;
componentIndex: number;
// Target item name to locate tooltip.
name: string;
option: ComponentItemTooltipOption<unknown>;
};
}
```
to locate a tooltipable component element by a payload.
## Test case
`test/tooltip-component.html`
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