{"ast":null,"code":"import _objectSpread from \"@babel/runtime/helpers/esm/objectSpread2\";\nimport _classCallCheck from \"@babel/runtime/helpers/esm/classCallCheck\";\nimport _createClass from \"@babel/runtime/helpers/esm/createClass\";\nimport _inherits from \"@babel/runtime/helpers/esm/inherits\";\nimport _createSuper from \"@babel/runtime/helpers/esm/createSuper\";\nimport * as React from 'react';\nimport findDOMNode from \"rc-util/es/Dom/findDOMNode\";\nimport toArray from \"rc-util/es/Children/toArray\";\nimport warning from \"rc-util/es/warning\";\nimport { composeRef, supportRef } from \"rc-util/es/ref\";\nimport ResizeObserver from 'resize-observer-polyfill';\nvar INTERNAL_PREFIX_KEY = 'rc-observer-key'; // Still need to be compatible with React 15, we use class component here\n\nvar ReactResizeObserver = /*#__PURE__*/function (_React$Component) {\n  _inherits(ReactResizeObserver, _React$Component);\n\n  var _super = _createSuper(ReactResizeObserver);\n\n  function ReactResizeObserver() {\n    var _this;\n\n    _classCallCheck(this, ReactResizeObserver);\n\n    _this = _super.apply(this, arguments);\n    _this.resizeObserver = null;\n    _this.childNode = null;\n    _this.currentElement = null;\n    _this.state = {\n      width: 0,\n      height: 0,\n      offsetHeight: 0,\n      offsetWidth: 0\n    };\n\n    _this.onResize = function (entries) {\n      var onResize = _this.props.onResize;\n      var target = entries[0].target;\n\n      var _target$getBoundingCl = target.getBoundingClientRect(),\n          width = _target$getBoundingCl.width,\n          height = _target$getBoundingCl.height;\n\n      var offsetWidth = target.offsetWidth,\n          offsetHeight = target.offsetHeight;\n      /**\n       * Resize observer trigger when content size changed.\n       * In most case we just care about element size,\n       * let's use `boundary` instead of `contentRect` here to avoid shaking.\n       */\n\n      var fixedWidth = Math.floor(width);\n      var fixedHeight = Math.floor(height);\n\n      if (_this.state.width !== fixedWidth || _this.state.height !== fixedHeight || _this.state.offsetWidth !== offsetWidth || _this.state.offsetHeight !== offsetHeight) {\n        var size = {\n          width: fixedWidth,\n          height: fixedHeight,\n          offsetWidth: offsetWidth,\n          offsetHeight: offsetHeight\n        };\n\n        _this.setState(size);\n\n        if (onResize) {\n          // defer the callback but not defer to next frame\n          Promise.resolve().then(function () {\n            onResize(_objectSpread(_objectSpread({}, size), {}, {\n              offsetWidth: offsetWidth,\n              offsetHeight: offsetHeight\n            }));\n          });\n        }\n      }\n    };\n\n    _this.setChildNode = function (node) {\n      _this.childNode = node;\n    };\n\n    return _this;\n  }\n\n  _createClass(ReactResizeObserver, [{\n    key: \"componentDidMount\",\n    value: function componentDidMount() {\n      this.onComponentUpdated();\n    }\n  }, {\n    key: \"componentDidUpdate\",\n    value: function componentDidUpdate() {\n      this.onComponentUpdated();\n    }\n  }, {\n    key: \"componentWillUnmount\",\n    value: function componentWillUnmount() {\n      this.destroyObserver();\n    }\n  }, {\n    key: \"onComponentUpdated\",\n    value: function onComponentUpdated() {\n      var disabled = this.props.disabled; // Unregister if disabled\n\n      if (disabled) {\n        this.destroyObserver();\n        return;\n      } // Unregister if element changed\n\n\n      var element = findDOMNode(this.childNode || this);\n      var elementChanged = element !== this.currentElement;\n\n      if (elementChanged) {\n        this.destroyObserver();\n        this.currentElement = element;\n      }\n\n      if (!this.resizeObserver && element) {\n        this.resizeObserver = new ResizeObserver(this.onResize);\n        this.resizeObserver.observe(element);\n      }\n    }\n  }, {\n    key: \"destroyObserver\",\n    value: function destroyObserver() {\n      if (this.resizeObserver) {\n        this.resizeObserver.disconnect();\n        this.resizeObserver = null;\n      }\n    }\n  }, {\n    key: \"render\",\n    value: function render() {\n      var children = this.props.children;\n      var childNodes = toArray(children);\n\n      if (childNodes.length > 1) {\n        warning(false, 'Find more than one child node with `children` in ResizeObserver. Will only observe first one.');\n      } else if (childNodes.length === 0) {\n        warning(false, '`children` of ResizeObserver is empty. Nothing is in observe.');\n        return null;\n      }\n\n      var childNode = childNodes[0];\n\n      if (React.isValidElement(childNode) && supportRef(childNode)) {\n        var ref = childNode.ref;\n        childNodes[0] = React.cloneElement(childNode, {\n          ref: composeRef(ref, this.setChildNode)\n        });\n      }\n\n      return childNodes.length === 1 ? childNodes[0] : childNodes.map(function (node, index) {\n        if (!React.isValidElement(node) || 'key' in node && node.key !== null) {\n          return node;\n        }\n\n        return React.cloneElement(node, {\n          key: \"\".concat(INTERNAL_PREFIX_KEY, \"-\").concat(index)\n        });\n      });\n    }\n  }]);\n\n  return ReactResizeObserver;\n}(React.Component);\n\nReactResizeObserver.displayName = 'ResizeObserver';\nexport default 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_objectSpread from \"@babel/runtime/helpers/esm/objectSpread2\";\nimport _classCallCheck from \"@babel/runtime/helpers/esm/classCallCheck\";\nimport _createClass from \"@babel/runtime/helpers/esm/createClass\";\nimport _inherits from \"@babel/runtime/helpers/esm/inherits\";\nimport _createSuper from \"@babel/runtime/helpers/esm/createSuper\";\nimport * as React from 'react';\nimport findDOMNode from \"rc-util/es/Dom/findDOMNode\";\nimport toArray from \"rc-util/es/Children/toArray\";\nimport warning from \"rc-util/es/warning\";\nimport { composeRef, supportRef } from \"rc-util/es/ref\";\nimport ResizeObserver from 'resize-observer-polyfill';\nvar INTERNAL_PREFIX_KEY = 'rc-observer-key'; // Still need to be compatible with React 15, we use class component here\n\nvar ReactResizeObserver = /*#__PURE__*/function (_React$Component) {\n  _inherits(ReactResizeObserver, _React$Component);\n\n  var _super = _createSuper(ReactResizeObserver);\n\n  function ReactResizeObserver() {\n    var _this;\n\n    _classCallCheck(this, ReactResizeObserver);\n\n    _this = _super.apply(this, arguments);\n    _this.resizeObserver = null;\n    _this.childNode = null;\n    _this.currentElement = null;\n    _this.state = {\n      width: 0,\n      height: 0,\n      offsetHeight: 0,\n      offsetWidth: 0\n    };\n\n    _this.onResize = function (entries) {\n      var onResize = _this.props.onResize;\n      var target = entries[0].target;\n\n      var _target$getBoundingCl = target.getBoundingClientRect(),\n          width = _target$getBoundingCl.width,\n          height = _target$getBoundingCl.height;\n\n      var offsetWidth = target.offsetWidth,\n          offsetHeight = target.offsetHeight;\n      /**\n       * Resize observer trigger when content size changed.\n       * In most case we just care about element size,\n       * let's use `boundary` instead of `contentRect` here to avoid shaking.\n       */\n\n      var fixedWidth = Math.floor(width);\n      var fixedHeight = Math.floor(height);\n\n      if (_this.state.width !== fixedWidth || _this.state.height !== fixedHeight || _this.state.offsetWidth !== offsetWidth || _this.state.offsetHeight !== offsetHeight) {\n        var size = {\n          width: fixedWidth,\n          height: fixedHeight,\n          offsetWidth: offsetWidth,\n          offsetHeight: offsetHeight\n        };\n\n        _this.setState(size);\n\n        if (onResize) {\n          // defer the callback but not defer to next frame\n          Promise.resolve().then(function () {\n            onResize(_objectSpread(_objectSpread({}, size), {}, {\n              offsetWidth: offsetWidth,\n              offsetHeight: offsetHeight\n            }));\n          });\n        }\n      }\n    };\n\n    _this.setChildNode = function (node) {\n      _this.childNode = node;\n    };\n\n    return _this;\n  }\n\n  _createClass(ReactResizeObserver, [{\n    key: \"componentDidMount\",\n    value: function componentDidMount() {\n      this.onComponentUpdated();\n    }\n  }, {\n    key: \"componentDidUpdate\",\n    value: function componentDidUpdate() {\n      this.onComponentUpdated();\n    }\n  }, {\n    key: \"componentWillUnmount\",\n    value: function componentWillUnmount() {\n      this.destroyObserver();\n    }\n  }, {\n    key: \"onComponentUpdated\",\n    value: function onComponentUpdated() {\n      var disabled = this.props.disabled; // Unregister if disabled\n\n      if (disabled) {\n        this.destroyObserver();\n        return;\n      } // Unregister if element changed\n\n\n      var element = findDOMNode(this.childNode || this);\n      var elementChanged = element !== this.currentElement;\n\n      if (elementChanged) {\n        this.destroyObserver();\n        this.currentElement = element;\n      }\n\n      if (!this.resizeObserver && element) {\n        this.resizeObserver = new ResizeObserver(this.onResize);\n        this.resizeObserver.observe(element);\n      }\n    }\n  }, {\n    key: \"destroyObserver\",\n    value: function destroyObserver() {\n      if (this.resizeObserver) {\n        this.resizeObserver.disconnect();\n        this.resizeObserver = null;\n      }\n    }\n  }, {\n    key: \"render\",\n    value: function render() {\n      var children = this.props.children;\n      var childNodes = toArray(children);\n\n      if (childNodes.length > 1) {\n        warning(false, 'Find more than one child node with `children` in ResizeObserver. Will only observe first one.');\n      } else if (childNodes.length === 0) {\n        warning(false, '`children` of ResizeObserver is empty. Nothing is in observe.');\n        return null;\n      }\n\n      var childNode = childNodes[0];\n\n      if (React.isValidElement(childNode) && supportRef(childNode)) {\n        var ref = childNode.ref;\n        childNodes[0] = React.cloneElement(childNode, {\n          ref: composeRef(ref, this.setChildNode)\n        });\n      }\n\n      return childNodes.length === 1 ? childNodes[0] : childNodes.map(function (node, index) {\n        if (!React.isValidElement(node) || 'key' in node && node.key !== null) {\n          return node;\n        }\n\n        return React.cloneElement(node, {\n          key: \"\".concat(INTERNAL_PREFIX_KEY, \"-\").concat(index)\n        });\n      });\n    }\n  }]);\n\n  return ReactResizeObserver;\n}(React.Component);\n\nReactResizeObserver.displayName = 'ResizeObserver';\nexport default ReactResizeObserver;"]},"metadata":{},"sourceType":"module"}