react-aspect-ratio/dist/next/react-15.6.js

React Component to maintain a consistent width-to-height ratio (aspect ratio), preventing cumulative layout shift.

var _excluded = ["className", "children", "ratio", "style"];
function _extends() { _extends = Object.assign ? Object.assign.bind() : 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; }; return _extends.apply(this, arguments); }
function _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } } return target; }
function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _setPrototypeOf(subClass, superClass); }
function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }
import { Component } from 'react';
import { jsx as _jsx } from "react/jsx-runtime";
var CUSTOM_PROPERTY_NAME = '--aspect-ratio';
var DEFAULT_CLASS_NAME = 'react-aspect-ratio-placeholder';
var AspectRatio = /*#__PURE__*/function (_Component) {
  function AspectRatio() {
    var _this;
    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }
    _this = _Component.call.apply(_Component, [this].concat(args)) || this;
    _this.node = null;
    _this.setNode = function (node) {
      _this.node = node;
    };
    return _this;
  }
  _inheritsLoose(AspectRatio, _Component);
  var _proto = AspectRatio.prototype;
  _proto.componentDidUpdate = function componentDidUpdate() {
    if (this.node) {
      var node = this.node;

      // BC for older version of React https://github.com/facebook/react/issues/6411
      // check if React support custom property AFTER
      var customPropertyValue = node.style.getPropertyValue(CUSTOM_PROPERTY_NAME);
      if (!customPropertyValue) {
        node.style.setProperty(CUSTOM_PROPERTY_NAME, "(" + this.props.ratio + ")");
      }
    }
  };
  _proto.render = function render() {
    var _extends2;
    var _this$props = this.props,
      className = _this$props.className,
      children = _this$props.children,
      ratio = _this$props.ratio,
      style = _this$props.style,
      restProps = _objectWithoutPropertiesLoose(_this$props, _excluded); // eslint-disable-line no-unused-vars

    var newStyle = _extends({}, style, (_extends2 = {}, _extends2[CUSTOM_PROPERTY_NAME] = "(" + ratio + ")", _extends2));
    return /*#__PURE__*/_jsx("div", _extends({
      className: className,
      ref: this.setNode,
      style: newStyle
    }, restProps, {
      children: children
    }));
  };
  return AspectRatio;
}(Component);
AspectRatio.defaultProps = {
  className: DEFAULT_CLASS_NAME,
  ratio: 1
};
export default AspectRatio;