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Update example to use PointerEvent.getCoalescedEvents() #51

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Update example to use PointerEvent.getCoalescedEvents() #51

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14 changes: 11 additions & 3 deletions packages/perfect-freehand/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ This package exports a function named `getStroke` that will generate the points

To do this work, `getStroke` first creates a set of spline points (red) based on the input points (grey) and then creates outline points (blue). You can render the result any way you like, using whichever technology you prefer.

[![Edit perfect-freehand-example](https://codesandbox.io/static/img/play-codesandbox.svg)](https://codesandbox.io/s/perfect-freehand-example-biwyi?fontsize=14&hidenavigation=1&theme=dark)
[![Edit perfect-freehand-example](https://codesandbox.io/static/img/play-codesandbox.svg)](https://codesandbox.io/s/perfect-freehand-example-28js16?fontsize=14&hidenavigation=1&theme=dark)

## Usage

Expand Down Expand Up @@ -119,7 +119,15 @@ export default function Example() {

function handlePointerMove(e) {
if (e.buttons !== 1) return
setPoints([...points, [e.pageX, e.pageY, e.pressure]])

if (typeof e.getCoalescedEvents === 'function') {
const events = e.nativeEvent.getCoalescedEvents()
events.forEach((evt) => {
setPoints([...points, [evt.pageX, evt.pageY, evt.pressure]])
})
} else {
setPoints([...points, [e.pageX, e.pageY, e.pressure]])
}
}

const stroke = getStroke(points, {
Expand All @@ -145,7 +153,7 @@ export default function Example() {

> **Tip:** For implementations in Typescript, see the example project included in this repository.

[![Edit perfect-freehand-example](https://codesandbox.io/static/img/play-codesandbox.svg)](https://codesandbox.io/s/perfect-freehand-example-biwyi?fontsize=14&hidenavigation=1&theme=dark)
[![Edit perfect-freehand-example](https://codesandbox.io/static/img/play-codesandbox.svg)](https://codesandbox.io/s/perfect-freehand-example-28js16?fontsize=14&hidenavigation=1&theme=dark)

## Documentation

Expand Down