ahooks
Version:
react hooks library
52 lines (51 loc) • 1.54 kB
JavaScript
import useRafState from '../useRafState';
import useEventListener from '../useEventListener';
import { getTargetElement } from '../utils/domTarget';
const initState = {
screenX: NaN,
screenY: NaN,
clientX: NaN,
clientY: NaN,
pageX: NaN,
pageY: NaN,
elementX: NaN,
elementY: NaN,
elementH: NaN,
elementW: NaN,
elementPosX: NaN,
elementPosY: NaN,
};
export default (target) => {
const [state, setState] = useRafState(initState);
useEventListener('mousemove', (event) => {
const { screenX, screenY, clientX, clientY, pageX, pageY } = event;
const newState = {
screenX,
screenY,
clientX,
clientY,
pageX,
pageY,
elementX: NaN,
elementY: NaN,
elementH: NaN,
elementW: NaN,
elementPosX: NaN,
elementPosY: NaN,
};
const targetElement = getTargetElement(target);
if (targetElement) {
const { left, top, width, height } = targetElement.getBoundingClientRect();
newState.elementPosX = left + window.pageXOffset;
newState.elementPosY = top + window.pageYOffset;
newState.elementX = pageX - newState.elementPosX;
newState.elementY = pageY - newState.elementPosY;
newState.elementW = width;
newState.elementH = height;
}
setState(newState);
}, {
target: () => document,
});
return state;
};