react-kube/TextFit.js

Kube CSS in React Components

"use strict";

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 _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 _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) subClass.__proto__ = superClass; }

var _react = require("react");

var _react2 = _interopRequireDefault(_react);

var TextFit = (function (_React$Component) {
  function TextFit() {
    _classCallCheck(this, TextFit);

    if (_React$Component != null) {
      _React$Component.apply(this, arguments);
    }
  }

  _inherits(TextFit, _React$Component);

  _createClass(TextFit, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      window.addEventListener("resize", this.resizeText.bind(this));
      this.resizeText();
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      window.removeEventListener("resize", this.resizeText.bind(this));
    }
  }, {
    key: "resizeText",
    value: function resizeText() {
      var element = _react2["default"].findDOMNode(this);
      var width = element.offsetWidth;
      element.style.fontSize = Math.max(Math.min(width / (this.props.compressor * 10), parseFloat(this.props.maxFontSize)), parseFloat(this.props.minFontSize)) + "px";
    }
  }, {
    key: "render",
    value: function render() {
      return this.props.children;
    }
  }]);

  return TextFit;
})(_react2["default"].Component);

TextFit.propTypes = {
  children: _react2["default"].PropTypes.node.isRequired,
  className: _react2["default"].PropTypes.string,
  compressor: _react2["default"].PropTypes.number,
  maxFontSize: _react2["default"].PropTypes.number,
  minFontSize: _react2["default"].PropTypes.number,
  style: _react2["default"].PropTypes.object
};

TextFit.defaultProps = {
  compressor: 1,
  minFontSize: Number.NEGATIVE_INFINITY,
  maxFontSize: Number.POSITIVE_INFINITY
};

module.exports = TextFit;