vnode.js 2.3 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354
  1. "use strict";
  2. var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
  3. Object.defineProperty(exports, "__esModule", {
  4. value: true
  5. });
  6. exports.cloneElement = cloneElement;
  7. exports.cloneVNodes = cloneVNodes;
  8. exports.deepCloneElement = deepCloneElement;
  9. var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));
  10. var _objectSpread2 = _interopRequireDefault(require("@babel/runtime/helpers/objectSpread2"));
  11. var _propsUtil = require("./props-util");
  12. var _vue = require("vue");
  13. var _warning = _interopRequireDefault(require("./warning"));
  14. function cloneElement(vnode) {
  15. var nodeProps = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  16. var override = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
  17. var mergeRef = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
  18. var ele = vnode;
  19. if (Array.isArray(vnode)) {
  20. ele = (0, _propsUtil.filterEmpty)(vnode)[0];
  21. }
  22. if (!ele) {
  23. return null;
  24. }
  25. var node = (0, _vue.cloneVNode)(ele, nodeProps, mergeRef);
  26. // cloneVNode内部是合并属性,这里改成覆盖属性
  27. node.props = override ? (0, _objectSpread2.default)((0, _objectSpread2.default)({}, node.props), nodeProps) : node.props;
  28. (0, _warning.default)((0, _typeof2.default)(node.props.class) !== 'object', 'class must be string');
  29. return node;
  30. }
  31. function cloneVNodes(vnodes) {
  32. var nodeProps = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  33. var override = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
  34. return vnodes.map(function (vnode) {
  35. return cloneElement(vnode, nodeProps, override);
  36. });
  37. }
  38. function deepCloneElement(vnode) {
  39. var nodeProps = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  40. var override = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
  41. var mergeRef = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
  42. if (Array.isArray(vnode)) {
  43. return vnode.map(function (item) {
  44. return deepCloneElement(item, nodeProps, override, mergeRef);
  45. });
  46. } else {
  47. var cloned = cloneElement(vnode, nodeProps, override, mergeRef);
  48. if (Array.isArray(cloned.children)) {
  49. cloned.children = deepCloneElement(cloned.children);
  50. }
  51. return cloned;
  52. }
  53. }