qt-public-ui/lib/DragDrawer/utils.js

新设计规范下业务组件库

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getValidSize = exports["default"] = exports.clacOffset = void 0;
var _slicedToArray2 = _interopRequireDefault(require("@babel/runtime/helpers/slicedToArray"));
var getValidSize = exports.getValidSize = function getValidSize() {
  var size = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
  var placement = arguments.length > 1 ? arguments[1] : undefined;
  var dragRange = arguments.length > 2 ? arguments[2] : undefined;
  var _ref = dragRange || [0.2, 0.8],
    _ref2 = (0, _slicedToArray2["default"])(_ref, 2),
    minRatio = _ref2[0],
    maxRatio = _ref2[1];
  var rect = [document.body.clientWidth, document.body.clientHeight];
  var _rect$map = rect.map(function (a) {
      return a * maxRatio;
    }),
    _rect$map2 = (0, _slicedToArray2["default"])(_rect$map, 2),
    maxWidth = _rect$map2[0],
    maxHeight = _rect$map2[1];
  var _rect$map3 = rect.map(function (a) {
      return a * minRatio;
    }),
    _rect$map4 = (0, _slicedToArray2["default"])(_rect$map3, 2),
    minWidth = _rect$map4[0],
    minHeight = _rect$map4[1];
  var validWidth = size > maxWidth ? maxWidth : size < minWidth ? minWidth : size;
  var validHeight = size > maxHeight ? maxHeight : size < minHeight ? minHeight : size;
  switch (placement) {
    case 'top': // fall down
    case 'bottom':
      return validHeight;
    case 'left': // fall down
    case 'right': // fall down
    default:
      return validWidth;
    // 默认 'right'
  }
};
var clacOffset = exports.clacOffset = function clacOffset(start, end, placement) {
  var offset = NaN;
  switch (placement) {
    case 'top':
      offset = end.y - start.y;
      break;
    case 'left':
      offset = end.x - start.x;
      break;
    case 'right':
      offset = start.x - end.x;
      break;
    case 'bottom':
      offset = start.y - end.y;
      break;
    default:
      return 0;
  }
  return Number.isNaN(offset) ? 0 : offset;
};
var _default = exports["default"] = {
  getValidSize: getValidSize,
  clacOffset: clacOffset
};