@bigfishtv/cockpit/es/components/container/Section.js

var _class, _temp2;

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

import PropTypes from 'prop-types';
import React, { Component } from 'react';

import * as scrollUtils from '../../utils/scrollUtils';

/**
 * Wrapper for a section that determines whether or not it should update based on if it's visible
 * This makes rendering less expensive on huge complex pages with many sections
 */
var Section = (_temp2 = _class = function (_Component) {
	_inherits(Section, _Component);

	function Section() {
		var _temp, _this, _ret;

		_classCallCheck(this, Section);

		for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
			args[_key] = arguments[_key];
		}

		return _ret = (_temp = (_this = _possibleConstructorReturn(this, _Component.call.apply(_Component, [this].concat(args))), _this), _this.el = null, _this.state = { inView: true }, _this.handleScroll = function (scroll, windowHeight) {
			var position = _this.el.getBoundingClientRect();
			var inView = position.bottom > 0 && position.top < windowHeight;
			if (inView !== _this.state.inView) {
				_this.setState({ inView: inView });
			}
		}, _temp), _possibleConstructorReturn(_this, _ret);
	}

	Section.prototype.componentDidMount = function componentDidMount() {
		scrollUtils.addListener(this.handleScroll);
	};

	Section.prototype.componentWillUnmount = function componentWillUnmount() {
		scrollUtils.removeListener(this.handleScroll);
	};

	Section.prototype.shouldComponentUpdate = function shouldComponentUpdate(nextProps, nextState) {
		// if (!this.state.inView && nextState.inView) console.log(this.props.sectionProperty + ' now in view')
		// if (this.state.inView && !nextState.inView) console.log(this.props.sectionProperty + ' out of view')
		return nextState.inView;
	};

	Section.prototype.render = function render() {
		var _this2 = this;

		var _props = this.props,
		    Component = _props.Component,
		    props = _objectWithoutProperties(_props, ['Component']);

		return React.createElement(
			'div',
			{ ref: function ref(el) {
					return _this2.el = el;
				} },
			React.createElement(Component, props)
		);
	};

	return Section;
}(Component), _class.propTypes = {
	/** Section component */
	Component: PropTypes.func.isRequired,
	/** Component icon */
	icon: PropTypes.string,
	/** Section property, e.g. hero_sections */
	sectionProperty: PropTypes.string,
	collapsed: PropTypes.bool,
	isNew: PropTypes.bool,

	onToggleCollapsed: PropTypes.func,
	onDuplicate: PropTypes.func,
	onRemove: PropTypes.func,
	onReorder: PropTypes.func
}, _temp2);
export { Section as default };