78 lines
2.2 KiB
JavaScript
78 lines
2.2 KiB
JavaScript
// @flow
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import PropTypes from 'prop-types';
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import React, { Component } from 'react';
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import { connect } from 'react-redux';
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import { ASPECT_RATIO_NARROW, ASPECT_RATIO_WIDE } from '../constants';
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/**
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* Determines whether a specific React {@code Component} decorated into an
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* {@link AspectRatioAware} has {@link ASPECT_RATIO_NARROW} as the value of its
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* {@code aspectRatio} React prop.
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*
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* @param {AspectRatioAware} component - An {@link AspectRatioAware} which may
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* have an {@code aspectRatio} React prop.
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* @returns {boolean}
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*/
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export function isNarrowAspectRatio(component: React$Component<*>) {
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return component.props.aspectRatio === ASPECT_RATIO_NARROW;
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}
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/**
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* Decorates a specific React {@code Component} class into an
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* {@link AspectRatioAware} which provides the React prop {@code aspectRatio}
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* updated on each redux state change.
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*
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* @param {Class<React$Component>} WrappedComponent - A React {@code Component}
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* class to be wrapped.
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* @returns {AspectRatioAwareWrapper}
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*/
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export function makeAspectRatioAware(
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WrappedComponent: Class<React$Component<*>>
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): Class<React$Component<*>> {
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/**
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* Renders {@code WrappedComponent} with the React prop {@code aspectRatio}.
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*/
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class AspectRatioAware extends Component<*> {
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/**
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* Properties of the aspect ratio aware wrapper.
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*/
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static propTypes = {
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/**
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* Either {@link ASPECT_RATIO_NARROW} or {@link ASPECT_RATIO_WIDE}.
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*/
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aspectRatio: PropTypes.oneOf([
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ASPECT_RATIO_NARROW,
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ASPECT_RATIO_WIDE
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])
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}
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/**
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* Implement's React render method to wrap the nested component.
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*
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* @returns {React$Element}
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*/
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render(): React$Element<*> {
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return <WrappedComponent { ...this.props } />;
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}
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}
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return connect(_mapStateToProps)(AspectRatioAware);
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}
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/**
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* Maps (parts of) the redux state to {@link AspectRatioAware} props.
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*
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* @param {Object} state - The whole redux state.
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* @private
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* @returns {{
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* aspectRatio: Symbol
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* }}
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*/
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function _mapStateToProps(state) {
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return {
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aspectRatio: state['features/base/aspect-ratio'].aspectRatio
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};
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}
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