ucsc-xena-client/dist/PureComponent.js

UCSC Xena Client. Functional genomics visualizations.

'use strict';

Object.defineProperty(exports, "__esModule", {
	value: true
});

var _createClass = 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); } } return function (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 _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; }

var _require = require('react'),
    Component = _require.Component;

var _require2 = require('./underscore_ext'),
    isEqual = _require2.isEqual;

var logDiff; //eslint-disable-line no-unused-vars

if (process.env.NODE_ENV !== 'production') {
	logDiff = function logDiff(comp, nextProps, nextState) {
		if (!isEqual(comp.props, nextProps)) {
			console.log(comp.constructor.displayName, 'props differ:');
			Object.keys(comp.props).forEach(function (p) {
				if (!nextProps.hasOwnProperty(p)) {
					console.log('key deleted:', p);
				} else if (!isEqual(comp.props[p], nextProps[p])) {
					console.log('key changed:', p);
				}
			});
			Object.keys(nextProps).forEach(function (p) {
				if (!comp.props.hasOwnProperty(p)) {
					console.log('key added:', p);
				};
			});
		}
		if (!isEqual(comp.state, nextState)) {
			console.log(comp.constructor.displayName, 'state differs:');
			Object.keys(comp.state).forEach(function (p) {
				if (!nextState.hasOwnProperty(p)) {
					console.log('key deleted:', p);
				} else if (!isEqual(comp.state[p], nextState[p])) {
					console.log('key changed:', p);
				}
			});
			Object.keys(nextState).forEach(function (p) {
				if (!comp.state.hasOwnProperty(p)) {
					console.log('key added:', p);
				};
			});
		}
	};
}

var PureComponent = function (_Component) {
	_inherits(PureComponent, _Component);

	function PureComponent() {
		_classCallCheck(this, PureComponent);

		return _possibleConstructorReturn(this, (PureComponent.__proto__ || Object.getPrototypeOf(PureComponent)).apply(this, arguments));
	}

	_createClass(PureComponent, [{
		key: 'shouldComponentUpdate',
		value: function shouldComponentUpdate(nextProps, nextState) {
			//		logDiff(this, nextProps, nextState);
			return !isEqual(nextProps, this.props) || !isEqual(nextState, this.state);
		}
	}]);

	return PureComponent;
}(Component);

exports.default = PureComponent;