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<!DOCTYPE html> <title>Virtual Element Visual Test</title>
<style>
@import '/reset.css';
#reference {
position: absolute;
top: 150px;
left: 150px;
width: 200px;
height: 200px;
background-color: red;
box-shadow: inset 0 0 0 1px black;
}
#popper {
width: 100px;
height: 100px;
background-color: rebeccapurple;
box-shadow: inset 0 0 0 1px black;
}
#offset {
position: relative;
top: 100px;
left: 100px;
}
</style>
<div id="offset">
<div id="reference">Reference Box</div>
</div>
<div id="popper">Popper Box</div>
<script type="module">
import { createPopper } from './dist/popper.js';
const reference = document.querySelector('#reference');
const popper = document.querySelector('#popper');
function generateGetBoundingClientRect(x = 0, y = 0) {
return () => ({
width: 0,
height: 0,
top: y,
right: x,
bottom: y,
left: x,
});
}
const virtualElement = {
getBoundingClientRect: generateGetBoundingClientRect(),
};
const instance = createPopper(virtualElement, popper);
document.addEventListener('mousemove', ({ clientX: x, clientY: y }) => {
virtualElement.getBoundingClientRect = generateGetBoundingClientRect(x, y);
instance.update();
});
</script>
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