content: import React, { Component } from 'react';
  import { CSSTransition } from 'primereact/csstransition';
  import { UniqueComponentId, IconUtils, ObjectUtils, classNames } from 'primereact/utils';
  import { Ripple } from 'primereact/ripple';
  
  function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  }
  
  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);
    Object.defineProperty(Constructor, "prototype", {
      writable: false
    });
    return Constructor;
  }
  
  function _assertThisInitialized(self) {
    if (self === void 0) {
      throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
    }
  
    return self;
  }
  
  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
      }
    });
    Object.defineProperty(subClass, "prototype", {
      writable: false
    });
    if (superClass) _setPrototypeOf(subClass, superClass);
  }
  
  function _typeof(obj) {
    "@babel/helpers - typeof";
  
    return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) {
      return typeof obj;
    } : function (obj) {
      return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    }, _typeof(obj);
  }
  
  function _possibleConstructorReturn(self, call) {
    if (call && (_typeof(call) === "object" || typeof call === "function")) {
      return call;
    } else if (call !== void 0) {
      throw new TypeError("Derived constructors may only return object or undefined");
    }
  
    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 ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }
  
  function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }
  
  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 Panel = /*#__PURE__*/function (_Component) {
    _inherits(Panel, _Component);
  
    var _super = _createSuper(Panel);
  
    function Panel(props) {
      var _this;
  
      _classCallCheck(this, Panel);
  
      _this = _super.call(this, props);
      var state = {
        id: _this.props.id
      };
  
      if (!_this.props.onToggle) {
        state = _objectSpread(_objectSpread({}, state), {}, {
          collapsed: _this.props.collapsed
        });
      }
  
      _this.state = state;
      _this.toggle = _this.toggle.bind(_assertThisInitialized(_this));
      _this.contentRef = /*#__PURE__*/React.createRef();
      return _this;
    }
  
    _createClass(Panel, [{
      key: "toggle",
      value: function toggle(event) {
        if (this.props.toggleable) {
          var collapsed = this.props.onToggle ? this.props.collapsed : this.state.collapsed;
          if (collapsed) this.expand(event);else this.collapse(event);
  
          if (this.props.onToggle) {
            this.props.onToggle({
              originalEvent: event,
              value: !collapsed
            });
          }
        }
  
        event.preventDefault();
      }
    }, {
      key: "expand",
      value: function expand(event) {
        if (!this.props.onToggle) {
          this.setState({
            collapsed: false
          });
        }
  
        if (this.props.onExpand) {
          this.props.onExpand(event);
        }
      }
    }, {
      key: "collapse",
      value: function collapse(event) {
        if (!this.props.onToggle) {
          this.setState({
            collapsed: true
          });
        }
  
        if (this.props.onCollapse) {
          this.props.onCollapse(event);
        }
      }
    }, {
      key: "isCollapsed",
      value: function isCollapsed() {
        return this.props.toggleable ? this.props.onToggle ? this.props.collapsed : this.state.collapsed : false;
      }
    }, {
      key: "componentDidMount",
      value: function componentDidMount() {
        if (!this.state.id) {
          this.setState({
            id: UniqueComponentId()
          });
        }
      }
    }, {
      key: "renderToggleIcon",
      value: function renderToggleIcon(collapsed) {
        if (this.props.toggleable) {
          var id = this.state.id + '_label';
          var ariaControls = this.state.id + '_content';
          var toggleIcon = collapsed ? this.props.expandIcon : this.props.collapseIcon;
          return /*#__PURE__*/React.createElement("button", {
            className: "p-panel-header-icon p-panel-toggler p-link",
            onClick: this.toggle,
            id: id,
            "aria-controls": ariaControls,
            "aria-expanded": !collapsed,
            role: "tab"
          }, IconUtils.getJSXIcon(toggleIcon, {
            props: this.props,
            collapsed: collapsed
          }), /*#__PURE__*/React.createElement(Ripple, null));
        }
  
        return null;
      }
    }, {
      key: "renderHeader",
      value: function renderHeader(collapsed) {
        var header = ObjectUtils.getJSXElement(this.props.header, this.props);
        var icons = ObjectUtils.getJSXElement(this.props.icons, this.props);
        var togglerElement = this.renderToggleIcon(collapsed);
        var titleElement = /*#__PURE__*/React.createElement("span", {
          className: "p-panel-title",
          id: this.state.id + '_header'
        }, header);
        var iconsElement = /*#__PURE__*/React.createElement("div", {
          className: "p-panel-icons"
        }, icons, togglerElement);
        var content = /*#__PURE__*/React.createElement("div", {
          className: "p-panel-header"
        }, titleElement, iconsElement);
  
        if (this.props.headerTemplate) {
          var defaultContentOptions = {
            className: 'p-panel-header',
            titleClassName: 'p-panel-title',
            iconsClassName: 'p-panel-icons',
            togglerClassName: 'p-panel-header-icon p-panel-toggler p-link',
            togglerIconClassName: collapsed ? this.props.expandIcon : this.props.collapseIcon,
            onTogglerClick: this.toggle,
            titleElement: titleElement,
            iconsElement: iconsElement,
            togglerElement: togglerElement,
            element: content,
            props: this.props,
            collapsed: collapsed
          };
          return ObjectUtils.getJSXElement(this.props.headerTemplate, defaultContentOptions);
        } else if (this.props.header || this.props.toggleable) {
          return content;
        }
  
        return null;
      }
    }, {
      key: "renderContent",
      value: function renderContent(collapsed) {
        var id = this.state.id + '_content';
        return /*#__PURE__*/React.createElement(CSSTransition, {
          nodeRef: this.contentRef,
          classNames: "p-toggleable-content",
          timeout: {
            enter: 1000,
            exit: 450
          },
          "in": !collapsed,
          unmountOnExit: true,
          options: this.props.transitionOptions
        }, /*#__PURE__*/React.createElement("div", {
          ref: this.contentRef,
          className: "p-toggleable-content",
          "aria-hidden": collapsed,
          role: "region",
          id: id,
          "aria-labelledby": this.state.id + '_header'
        }, /*#__PURE__*/React.createElement("div", {
          className: "p-panel-content"
        }, this.props.children)));
      }
    }, {
      key: "render",
      value: function render() {
        var className = classNames('p-panel p-component', {
          'p-panel-toggleable': this.props.toggleable
        }, this.props.className);
        var collapsed = this.isCollapsed();
        var header = this.renderHeader(collapsed);
        var content = this.renderContent(collapsed);
        return /*#__PURE__*/React.createElement("div", {
          id: this.props.id,
          className: className,
          style: this.props.style
        }, header, content);
      }
    }]);
  
    return Panel;
  }(Component);
  
  _defineProperty(Panel, "defaultProps", {
    id: null,
    header: null,
    headerTemplate: null,
    toggleable: null,
    style: null,
    className: null,
    collapsed: null,
    expandIcon: 'pi pi-plus',
    collapseIcon: 'pi pi-minus',
    icons: null,
    transitionOptions: null,
    onExpand: null,
    onCollapse: null,
    onToggle: null
  });
  
  export { Panel };
  