zent/popover/src/placement/right-bottom.js

一套前端设计语言和基于React的实现

import createPlacement from './create';

/**
* ----------------------
* |                    |----------
* |   anchor           | popover |
* |--------------------|---------
*
*/
export default createPlacement((anchorBoundingBox, containerBoundingBox, contentDimension, options) => {
  const { right, bottom } = anchorBoundingBox;
  const x = right + options.cushion;
  const y = bottom - contentDimension.height;

  return {
    getCSSStyle() {
      return {
        position: 'absolute',
        left: `${Math.round(x)}px`,
        top: `${Math.round(y)}px`
      };
    },

    name: 'position-right-bottom'
  };
});