ukelli-ui/core/position-filter.js

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"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = positionFilter;

/**
 * 用于过滤控件的定位标识, 确保位置准确性
 * 检查缺失项，并且补全
 * 过滤重复位置标识
 * @param {"verticalPosition,horizontalPosition"} position
 * @returns {"verticalPosition horizontalPosition"}
 */
function positionFilter(position) {
  var horizontal = ['left', 'right'];
  var vertical = ['bottom', 'top'];
  var all = horizontal.concat(vertical);
  var result = [];
  var positionArr = position.split(/,|\./);
  all.forEach(function (pos) {
    var posIdx = positionArr.indexOf(pos);

    if (posIdx != -1) {
      result.push(pos);
    }
  });

  if (result.length < 2) {
    var hasPos = result[0];
    horizontal.indexOf(hasPos) == -1 && result.push(horizontal[0]);
    vertical.indexOf(hasPos) == -1 && result.push(vertical[0]);
  }

  return result.join(' ');
}