@beisen-platform/pop-layer/lib/utils.js

export var MAX_CONFIRM_HEIGHT = 220;
/**
 * 计算target的中点位置
 * @param {HTMLElement} target
 */

export function computeTargetCenterPosition(target) {
  var _target$getBoundingCl = target.getBoundingClientRect(),
      top = _target$getBoundingCl.top,
      left = _target$getBoundingCl.left,
      width = _target$getBoundingCl.width,
      height = _target$getBoundingCl.height;

  return {
    top: top + height / 2,
    left: left + width / 2
  };
}
export function computePositionToMakePopCenter(popEl, target) {
  var _computeTargetCenterP = computeTargetCenterPosition(target),
      top = _computeTargetCenterP.top,
      left = _computeTargetCenterP.left;

  return {
    left: left,
    top: top,
    marginTop: -popEl.offsetHeight / 2,
    marginLeft: -popEl.offsetWidth / 2
  };
}
/**
 * 设置pop样式，当setPosition为true 时，可以设置位置和偏移
 * @param dirClass
 * @param maxHeight
 * @param isSetPosition
 * @param {*} position 位置
 * @param {*}  translate 偏移量
 * @returns {CSSStyleSheet}
 */

export function genPopStyleIfPosition(dirClass, maxHeight) {
  var isSetPosition = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

  var _ref = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {
    top: '',
    bottom: '',
    left: '',
    right: ''
  },
      top = _ref.top,
      bottom = _ref.bottom,
      left = _ref.left,
      right = _ref.right;

  return isSetPosition ? {
    "WebkitTransformOrigin": dirClass,
    "MozTransformOrigin": dirClass,
    "MzTransformOrigin": dirClass,
    "OTransformOrigin": dirClass,
    "left": left + "px",
    "top": top + "px",
    'bottom': bottom + 'px',
    'right': right + 'px',
    "maxHeight": maxHeight // 最大高度为220px， 减去padding15

  } : {
    "WebkitTransformOrigin": dirClass,
    "MozTransformOrigin": dirClass,
    "MzTransformOrigin": dirClass,
    "OTransformOrigin": dirClass,
    "maxHeight": maxHeight
  };
}