content: import React, { Component } from 'react';
  import { DomHandler, classNames } from 'primereact/core';
  
  function _arrayLikeToArray(arr, len) {
    if (len == null || len > arr.length) len = arr.length;
  
    for (var i = 0, arr2 = new Array(len); i < len; i++) {
      arr2[i] = arr[i];
    }
  
    return arr2;
  }
  
  function _arrayWithoutHoles(arr) {
    if (Array.isArray(arr)) return _arrayLikeToArray(arr);
  }
  
  function _iterableToArray(iter) {
    if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter);
  }
  
  function _unsupportedIterableToArray(o, minLen) {
    if (!o) return;
    if (typeof o === "string") return _arrayLikeToArray(o, minLen);
    var n = Object.prototype.toString.call(o).slice(8, -1);
    if (n === "Object" && o.constructor) n = o.constructor.name;
    if (n === "Map" || n === "Set") return Array.from(o);
    if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
  }
  
  function _nonIterableSpread() {
    throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
  }
  
  function _toConsumableArray(arr) {
    return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread();
  }
  
  function _defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }
  
  function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
    if (staticProps) _defineProperties(Constructor, staticProps);
    return Constructor;
  }
  
  function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  }
  
  function _setPrototypeOf(o, p) {
    _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
      o.__proto__ = p;
      return o;
    };
  
    return _setPrototypeOf(o, p);
  }
  
  function _inherits(subClass, superClass) {
    if (typeof superClass !== "function" && superClass !== null) {
      throw new TypeError("Super expression must either be null or a function");
    }
  
    subClass.prototype = Object.create(superClass && superClass.prototype, {
      constructor: {
        value: subClass,
        writable: true,
        configurable: true
      }
    });
    if (superClass) _setPrototypeOf(subClass, superClass);
  }
  
  function _typeof(obj) {
    "@babel/helpers - typeof";
  
    if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
      _typeof = function _typeof(obj) {
        return typeof obj;
      };
    } else {
      _typeof = function _typeof(obj) {
        return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
      };
    }
  
    return _typeof(obj);
  }
  
  function _assertThisInitialized(self) {
    if (self === void 0) {
      throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
    }
  
    return self;
  }
  
  function _possibleConstructorReturn(self, call) {
    if (call && (_typeof(call) === "object" || typeof call === "function")) {
      return call;
    }
  
    return _assertThisInitialized(self);
  }
  
  function _getPrototypeOf(o) {
    _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
      return o.__proto__ || Object.getPrototypeOf(o);
    };
    return _getPrototypeOf(o);
  }
  
  function _defineProperty(obj, key, value) {
    if (key in obj) {
      Object.defineProperty(obj, key, {
        value: value,
        enumerable: true,
        configurable: true,
        writable: true
      });
    } else {
      obj[key] = value;
    }
  
    return obj;
  }
  
  function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  
  function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
  var SplitterPanel = /*#__PURE__*/function (_Component) {
    _inherits(SplitterPanel, _Component);
  
    var _super = _createSuper(SplitterPanel);
  
    function SplitterPanel() {
      _classCallCheck(this, SplitterPanel);
  
      return _super.apply(this, arguments);
    }
  
    return SplitterPanel;
  }(Component);
  
  _defineProperty(SplitterPanel, "defaultProps", {
    size: null,
    minSize: null,
    style: null,
    className: null
  });
  
  var Splitter = /*#__PURE__*/function (_Component2) {
    _inherits(Splitter, _Component2);
  
    var _super2 = _createSuper(Splitter);
  
    function Splitter() {
      _classCallCheck(this, Splitter);
  
      return _super2.apply(this, arguments);
    }
  
    _createClass(Splitter, [{
      key: "bindMouseListeners",
      value: function bindMouseListeners() {
        var _this = this;
  
        if (!this.mouseMoveListener) {
          this.mouseMoveListener = function (event) {
            return _this.onResize(event);
          };
  
          document.addEventListener('mousemove', this.mouseMoveListener);
        }
  
        if (!this.mouseUpListener) {
          this.mouseUpListener = function (event) {
            _this.onResizeEnd(event);
  
            _this.unbindMouseListeners();
          };
  
          document.addEventListener('mouseup', this.mouseUpListener);
        }
      }
    }, {
      key: "validateResize",
      value: function validateResize(newPrevPanelSize, newNextPanelSize) {
        if (this.props.children[this.prevPanelIndex].props && this.props.children[this.prevPanelIndex].props.minSize && this.props.children[this.prevPanelIndex].props.minSize > newPrevPanelSize) {
          return false;
        }
  
        if (this.props.children[this.prevPanelIndex + 1].props && this.props.children[this.prevPanelIndex + 1].props.minSize && this.props.children[this.prevPanelIndex + 1].props.minSize > newNextPanelSize) {
          return false;
        }
  
        return true;
      }
    }, {
      key: "unbindMouseListeners",
      value: function unbindMouseListeners() {
        if (this.mouseMoveListener) {
          document.removeEventListener('mousemove', this.mouseMoveListener);
          this.mouseMoveListener = null;
        }
  
        if (this.mouseUpListener) {
          document.removeEventListener('mouseup', this.mouseUpListener);
          this.mouseUpListener = null;
        }
      }
    }, {
      key: "clear",
      value: function clear() {
        this.dragging = false;
        this.size = null;
        this.startPos = null;
        this.prevPanelElement = null;
        this.nextPanelElement = null;
        this.prevPanelSize = null;
        this.nextPanelSize = null;
        this.gutterElement = null;
        this.prevPanelIndex = null;
      }
    }, {
      key: "isStateful",
      value: function isStateful() {
        return this.props.stateKey != null;
      }
    }, {
      key: "getStorage",
      value: function getStorage() {
        switch (this.props.stateStorage) {
          case 'local':
            return window.localStorage;
  
          case 'session':
            return window.sessionStorage;
  
          default:
            throw new Error(this.props.stateStorage + ' is not a valid value for the state storage, supported values are "local" and "session".');
        }
      }
    }, {
      key: "saveState",
      value: function saveState() {
        this.getStorage().setItem(this.props.stateKey, JSON.stringify(this.panelSizes));
      }
    }, {
      key: "restoreState",
      value: function restoreState() {
        var _this2 = this;
  
        var storage = this.getStorage();
        var stateString = storage.getItem(this.props.stateKey);
  
        if (stateString) {
          this.panelSizes = JSON.parse(stateString);
  
          var children = _toConsumableArray(this.container.children).filter(function (child) {
            return DomHandler.hasClass(child, 'p-splitter-panel');
          });
  
          children.forEach(function (child, i) {
            child.style.flexBasis = 'calc(' + _this2.panelSizes[i] + '% - ' + (_this2.props.children.length - 1) * _this2.props.gutterSize + 'px)';
          });
          return true;
        }
  
        return false;
      }
    }, {
      key: "onResizeStart",
      value: function onResizeStart(event, index) {
        var pageX = event.type === 'touchstart' ? event.touches[0].pageX : event.pageX;
        var pageY = event.type === 'touchstart' ? event.touches[0].pageY : event.pageY;
        this.gutterElement = event.currentTarget;
        this.size = this.props.layout === 'horizontal' ? DomHandler.getWidth(this.container) : DomHandler.getHeight(this.container);
        this.dragging = true;
        this.startPos = this.props.layout === 'horizontal' ? pageX : pageY;
        this.prevPanelElement = this.gutterElement.previousElementSibling;
        this.nextPanelElement = this.gutterElement.nextElementSibling;
        this.prevPanelSize = 100 * (this.props.layout === 'horizontal' ? DomHandler.getOuterWidth(this.prevPanelElement, true) : DomHandler.getOuterHeight(this.prevPanelElement, true)) / this.size;
        this.nextPanelSize = 100 * (this.props.layout === 'horizontal' ? DomHandler.getOuterWidth(this.nextPanelElement, true) : DomHandler.getOuterHeight(this.nextPanelElement, true)) / this.size;
        this.prevPanelIndex = index;
        DomHandler.addClass(this.gutterElement, 'p-splitter-gutter-resizing');
        DomHandler.addClass(this.container, 'p-splitter-resizing');
      }
    }, {
      key: "onResize",
      value: function onResize(event) {
        var newPos;
        var pageX = event.type === 'touchmove' ? event.touches[0].pageX : event.pageX;
        var pageY = event.type === 'touchmove' ? event.touches[0].pageY : event.pageY;
        if (this.props.layout === 'horizontal') newPos = pageX * 100 / this.size - this.startPos * 100 / this.size;else newPos = pageY * 100 / this.size - this.startPos * 100 / this.size;
        var newPrevPanelSize = this.prevPanelSize + newPos;
        var newNextPanelSize = this.nextPanelSize - newPos;
  
        if (this.validateResize(newPrevPanelSize, newNextPanelSize)) {
          this.prevPanelElement.style.flexBasis = 'calc(' + newPrevPanelSize + '% - ' + (this.props.children.length - 1) * this.props.gutterSize + 'px)';
          this.nextPanelElement.style.flexBasis = 'calc(' + newNextPanelSize + '% - ' + (this.props.children.length - 1) * this.props.gutterSize + 'px)';
          this.panelSizes[this.prevPanelIndex] = newPrevPanelSize;
          this.panelSizes[this.prevPanelIndex + 1] = newNextPanelSize;
        }
      }
    }, {
      key: "onResizeEnd",
      value: function onResizeEnd(event) {
        if (this.isStateful()) {
          this.saveState();
        }
  
        if (this.props.onResizeEnd) {
          this.props.onResizeEnd({
            originalEvent: event,
            sizes: this.panelSizes
          });
        }
  
        DomHandler.removeClass(this.gutterElement, 'p-splitter-gutter-resizing');
        DomHandler.removeClass(this.container, 'p-splitter-resizing');
        this.clear();
      }
    }, {
      key: "onGutterMouseDown",
      value: function onGutterMouseDown(event, index) {
        this.onResizeStart(event, index);
        this.bindMouseListeners();
      }
    }, {
      key: "onGutterTouchStart",
      value: function onGutterTouchStart(event, index) {
        this.onResizeStart(event, index);
        this.windowTouchMoveListener = this.onGutterTouchMove.bind(this);
        this.windowTouchEndListener = this.onGutterTouchEnd.bind(this);
        window.addEventListener('touchmove', this.windowTouchMoveListener, {
          passive: false,
          cancelable: false
        });
        window.addEventListener('touchend', this.windowTouchEndListener);
      }
    }, {
      key: "onGutterTouchMove",
      value: function onGutterTouchMove(event) {
        this.onResize(event);
      }
    }, {
      key: "onGutterTouchEnd",
      value: function onGutterTouchEnd(event) {
        this.onResizeEnd(event);
        window.removeEventListener('touchmove', this.windowTouchMoveListener);
        window.removeEventListener('touchend', this.windowTouchEndListener);
        this.windowTouchMoveListener = null;
        this.windowTouchEndListener = null;
      }
    }, {
      key: "componentDidMount",
      value: function componentDidMount() {
        var _this3 = this;
  
        if (this.panelElement) {
          if (this.panelElement.childNodes && DomHandler.find(this.panelElement, '.p-splitter')) {
            DomHandler.addClass(this.panelElement, 'p-splitter-panel-nested');
          }
        }
  
        if (this.props.children && this.props.children.length) {
          var initialized = false;
  
          if (this.isStateful()) {
            initialized = this.restoreState();
          }
  
          if (!initialized) {
            var children = _toConsumableArray(this.container.children).filter(function (child) {
              return DomHandler.hasClass(child, 'p-splitter-panel');
            });
  
            var _panelSizes = [];
            this.props.children.map(function (panel, i) {
              var panelInitialSize = panel.props && panel.props.size ? panel.props.size : null;
              var panelSize = panelInitialSize || 100 / _this3.props.children.length;
              _panelSizes[i] = panelSize;
              children[i].style.flexBasis = 'calc(' + panelSize + '% - ' + (_this3.props.children.length - 1) * _this3.props.gutterSize + 'px)';
              return _panelSizes;
            });
            this.panelSizes = _panelSizes;
          }
        }
      }
    }, {
      key: "renderPanel",
      value: function renderPanel(panel, index) {
        var _this4 = this;
  
        var panelClassName = classNames('p-splitter-panel', panel.props.className);
        var gutterStyle = this.props.layout === 'horizontal' ? {
          width: this.props.gutterSize + 'px'
        } : {
          height: this.props.gutterSize + 'px'
        };
        var gutter = index !== this.props.children.length - 1 && /*#__PURE__*/React.createElement("div", {
          ref: function ref(el) {
            return _this4.gutterElement = el;
          },
          className: 'p-splitter-gutter',
          style: gutterStyle,
          onMouseDown: function onMouseDown(event) {
            return _this4.onGutterMouseDown(event, index);
          },
          onTouchStart: function onTouchStart(event) {
            return _this4.onGutterTouchStart(event, index);
          },
          onTouchMove: function onTouchMove(event) {
            return _this4.onGutterTouchMove(event);
          },
          onTouchEnd: function onTouchEnd(event) {
            return _this4.onGutterTouchEnd(event);
          }
        }, /*#__PURE__*/React.createElement("div", {
          className: "p-splitter-gutter-handle"
        }));
        return /*#__PURE__*/React.createElement(React.Fragment, null, /*#__PURE__*/React.createElement("div", {
          ref: function ref(el) {
            return _this4.panelElement = el;
          },
          key: index,
          className: panelClassName,
          style: panel.props.style
        }, panel.props.children), gutter);
      }
    }, {
      key: "renderPanels",
      value: function renderPanels() {
        var _this5 = this;
  
        return React.Children.map(this.props.children, function (panel, index) {
          return _this5.renderPanel(panel, index);
        });
      }
    }, {
      key: "render",
      value: function render() {
        var _this6 = this;
  
        var className = classNames("p-splitter p-component p-splitter-".concat(this.props.layout), this.props.className);
        var panels = this.renderPanels();
        return /*#__PURE__*/React.createElement("div", {
          ref: function ref(el) {
            return _this6.container = el;
          },
          id: this.props.id,
          className: className,
          style: this.props.style
        }, panels);
      }
    }]);
  
    return Splitter;
  }(Component);
  
  _defineProperty(Splitter, "defaultProps", {
    id: null,
    className: null,
    style: null,
    layout: 'horizontal',
    gutterSize: 4,
    stateKey: null,
    stateStorage: 'session',
    onResizeEnd: null
  });
  
  export { Splitter, SplitterPanel };
  