vue-leave/lib/util.js

这是一个移动端拖放手势组件库

export function overlap(dom1, dom2) {
  const rect1 = dom1.getBoundingClientRect()
  const rect2 = dom2.getBoundingClientRect()

  const x1 = rect1.x || rect1.left
  const y1 = rect1.y || rect1.top
  const w1 = rect1.width
  const h1 = rect1.height

  const x2 = rect2.x || rect2.left
  const y2 = rect2.y || rect2.top
  const w2 = rect2.width
  const h2 = rect2.height

  return (x1 + w1 > x2 && x1 < x2 + w2 && y1 + h1 > y2 && y1 < y2 + h2)
}

export function getGUID() {
  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {
    const r = Math.random() * 16 | 0, v = c === 'x' ? r : (r & 0x3 | 0x8)
    return v.toString(16)
  })
}