| Path : /var/www/html/infraai.ai/frontend/node_modules/recharts/lib/util/ |
|
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| Current File : /var/www/html/infraai.ai/frontend/node_modules/recharts/lib/util/useElementOffset.js |
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.useElementOffset = useElementOffset;
var _react = require("react");
var EPS = 1;
/**
* TODO this documentation does not reflect what this hook is doing, update it.
* Stores the `offsetHeight`, `offsetLeft`, `offsetTop`, and `offsetWidth` of a DOM element.
*/
/**
* Use this to listen to element layout changes.
*
* Very useful for reading actual sizes of DOM elements relative to the viewport.
*
* @param extraDependencies use this to trigger new DOM dimensions read when any of these change. Good for things like payload and label, that will re-render something down in the children array, but you want to read the layout box of a parent.
* @returns [lastElementOffset, updateElementOffset] most recent value, and setter. Pass the setter to a DOM element ref like this: `<div ref={updateElementOffset}>`
*/
function useElementOffset() {
var extraDependencies = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
var [lastBoundingBox, setLastBoundingBox] = (0, _react.useState)({
height: 0,
left: 0,
top: 0,
width: 0
});
var updateBoundingBox = (0, _react.useCallback)(node => {
if (node != null) {
var rect = node.getBoundingClientRect();
var box = {
height: rect.height,
left: rect.left,
top: rect.top,
width: rect.width
};
if (Math.abs(box.height - lastBoundingBox.height) > EPS || Math.abs(box.left - lastBoundingBox.left) > EPS || Math.abs(box.top - lastBoundingBox.top) > EPS || Math.abs(box.width - lastBoundingBox.width) > EPS) {
setLastBoundingBox({
height: box.height,
left: box.left,
top: box.top,
width: box.width
});
}
}
},
// eslint-disable-next-line react-hooks/exhaustive-deps
[lastBoundingBox.width, lastBoundingBox.height, lastBoundingBox.top, lastBoundingBox.left, ...extraDependencies]);
return [lastBoundingBox, updateBoundingBox];
}