react-document-meta
Version:
Declarative, nested and stateful HTML document meta tags for React
234 lines (182 loc) • 8.41 kB
JavaScript
;
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; }; }();
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
exports.render = render;
var _react = require('react');
var _react2 = _interopRequireDefault(_react);
var _propTypes = require('prop-types');
var _propTypes2 = _interopRequireDefault(_propTypes);
var _reactSideEffect = require('react-side-effect');
var _reactSideEffect2 = _interopRequireDefault(_reactSideEffect);
var _utils = require('./utils');
var _dom = require('./dom');
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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; }
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 _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 reducePropsTostate(propsList) {
var props = {};
var dynamicProps = {
title: undefined,
description: undefined,
canonical: undefined
};
var extend = true;
var _loop = function _loop() {
extend = propsList[i].hasOwnProperty('extend');
var _props = propsList[i];
var _cloned = (0, _utils.clone)(propsList[i]);
['title', 'description', 'canonical'].forEach(function (key) {
if (_props.hasOwnProperty(key)) {
if (typeof _props[key] === 'function') {
dynamicProps[key] = _props[key](dynamicProps[key]);
} else if (dynamicProps[key] === undefined) {
dynamicProps[key] = _props[key];
}
}
});
(0, _utils.defaults)(props, _cloned);
};
for (var i = propsList.length - 1; extend && i >= 0; i--) {
_loop();
}
if (typeof dynamicProps.title === 'string') {
props.title = dynamicProps.title;
}
if (typeof dynamicProps.description === 'string') {
(0, _utils.defaults)(props, {
meta: { name: { description: dynamicProps.description } }
});
}
if (typeof dynamicProps.canonical === 'string') {
(0, _utils.defaults)(props, { link: { rel: { canonical: dynamicProps.canonical } } });
}
if (props.auto && props.auto.ograph) {
ograph(props);
}
return props;
}
function handleStateChangeOnClient(props) {
if (_dom.canUseDOM) {
if (typeof props.title === 'string') {
document.title = props.title;
}
(0, _dom.insertDocumentMeta)(getTags(props));
}
}
function ograph(p) {
if (!p.meta) {
p.meta = {};
}
if (!p.meta.property) {
p.meta.property = {};
}
var group = p.meta.property;
if (group) {
if (p.title && !group['og:title']) {
group['og:title'] = p.title;
}
if (p.hasOwnProperty('description') && !group['og:description']) {
group['og:description'] = p.description;
}
if (p.hasOwnProperty('canonical') && !group['og:url']) {
group['og:url'] = p.canonical;
}
}
return p;
}
function parseTags(tagName) {
var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
var tags = [];
var contentKey = tagName === 'link' ? 'href' : 'content';
Object.keys(props).forEach(function (groupKey) {
var group = props[groupKey];
if (typeof group === 'string') {
tags.push(_defineProperty({
tagName: tagName
}, groupKey, group));
return;
}
Object.keys(group).forEach(function (key) {
var values = Array.isArray(group[key]) ? group[key] : [group[key]];
values.forEach(function (value) {
if (value !== null) {
var _tags$push2;
tags.push((_tags$push2 = {
tagName: tagName
}, _defineProperty(_tags$push2, groupKey, key), _defineProperty(_tags$push2, contentKey, value), _tags$push2));
}
});
});
});
return tags;
}
function getTags(_props) {
return [].concat(parseTags('meta', _props.meta), parseTags('link', _props.link));
}
function render() {
var meta = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
var i = 0;
var tags = [];
function renderTag(entry) {
var tagName = entry.tagName,
attr = _objectWithoutProperties(entry, ['tagName']);
if (tagName === 'meta') {
return _react2.default.createElement('meta', _extends({}, attr, { key: i++, 'data-rdm': true }));
}
if (tagName === 'link') {
return _react2.default.createElement('link', _extends({}, attr, { key: i++, 'data-rdm': true }));
}
return null;
}
if (meta.title) {
tags.push(_react2.default.createElement(
'title',
{ key: i++ },
meta.title
));
}
return getTags(meta).reduce(function (acc, entry) {
acc.push(renderTag(entry));
return acc;
}, tags);
}
var DocumentMeta = function (_Component) {
_inherits(DocumentMeta, _Component);
function DocumentMeta() {
_classCallCheck(this, DocumentMeta);
return _possibleConstructorReturn(this, (DocumentMeta.__proto__ || Object.getPrototypeOf(DocumentMeta)).apply(this, arguments));
}
_createClass(DocumentMeta, [{
key: 'render',
value: function render() {
var children = this.props.children;
var count = _react2.default.Children.count(children);
return count === 1 ? _react2.default.Children.only(children) : count ? _react2.default.createElement(
'div',
null,
this.props.children
) : null;
}
}]);
return DocumentMeta;
}(_react.Component);
DocumentMeta.propTypes = {
title: _propTypes2.default.oneOfType([_propTypes2.default.string, _propTypes2.default.func]),
description: _propTypes2.default.oneOfType([_propTypes2.default.string, _propTypes2.default.func]),
canonical: _propTypes2.default.oneOfType([_propTypes2.default.string, _propTypes2.default.func]),
base: _propTypes2.default.string,
meta: _propTypes2.default.objectOf(_propTypes2.default.oneOfType([_propTypes2.default.string, _propTypes2.default.objectOf(_propTypes2.default.oneOfType([_propTypes2.default.string, _propTypes2.default.arrayOf(_propTypes2.default.string)]))])),
link: _propTypes2.default.objectOf(_propTypes2.default.objectOf(_propTypes2.default.oneOfType([_propTypes2.default.string, _propTypes2.default.arrayOf(_propTypes2.default.string)]))),
auto: _propTypes2.default.objectOf(_propTypes2.default.bool)
};
var DocumentMetaWithSideEffect = (0, _reactSideEffect2.default)(reducePropsTostate, handleStateChangeOnClient)(DocumentMeta);
DocumentMetaWithSideEffect.renderAsReact = function rewindAsReact() {
return render(DocumentMetaWithSideEffect.rewind());
};
exports.default = DocumentMetaWithSideEffect;