(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('react')) :
  typeof define === 'function' && define.amd ? define(['exports', 'react'], factory) :
  (factory((global.TextareaAutosize = {}),global.React));
}(this, (function (exports,React) { 'use strict';

  React = React && React.hasOwnProperty('default') ? React['default'] : React;

  function _extends() {
    _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;
    };

    return _extends.apply(this, arguments);
  }

  function _inheritsLoose(subClass, superClass) {
    subClass.prototype = Object.create(superClass.prototype);
    subClass.prototype.constructor = subClass;
    subClass.__proto__ = superClass;
  }

  function _objectWithoutProperties(source, excluded) {
    if (source == null) return {};
    var target = {};
    var sourceKeys = Object.keys(source);
    var key, i;

    for (i = 0; i < sourceKeys.length; i++) {
      key = sourceKeys[i];
      if (excluded.indexOf(key) >= 0) continue;
      target[key] = source[key];
    }

    if (Object.getOwnPropertySymbols) {
      var sourceSymbolKeys = Object.getOwnPropertySymbols(source);

      for (i = 0; i < sourceSymbolKeys.length; i++) {
        key = sourceSymbolKeys[i];
        if (excluded.indexOf(key) >= 0) continue;
        if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue;
        target[key] = source[key];
      }
    }

    return target;
  }

  function _assertThisInitialized(self) {
    if (self === void 0) {
      throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
    }

    return self;
  }

  function createCommonjsModule(fn, module) {
  	return module = { exports: {} }, fn(module, module.exports), module.exports;
  }

  /*
  object-assign
  (c) Sindre Sorhus
  @license MIT
  */
  /* eslint-disable no-unused-vars */
  var getOwnPropertySymbols = Object.getOwnPropertySymbols;
  var hasOwnProperty = Object.prototype.hasOwnProperty;
  var propIsEnumerable = Object.prototype.propertyIsEnumerable;

  function toObject(val) {
  	if (val === null || val === undefined) {
  		throw new TypeError('Object.assign cannot be called with null or undefined');
  	}

  	return Object(val);
  }

  function shouldUseNative() {
  	try {
  		if (!Object.assign) {
  			return false;
  		}

  		// Detect buggy property enumeration order in older V8 versions.

  		// https://bugs.chromium.org/p/v8/issues/detail?id=4118
  		var test1 = new String('abc');  // eslint-disable-line no-new-wrappers
  		test1[5] = 'de';
  		if (Object.getOwnPropertyNames(test1)[0] === '5') {
  			return false;
  		}

  		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
  		var test2 = {};
  		for (var i = 0; i < 10; i++) {
  			test2['_' + String.fromCharCode(i)] = i;
  		}
  		var order2 = Object.getOwnPropertyNames(test2).map(function (n) {
  			return test2[n];
  		});
  		if (order2.join('') !== '0123456789') {
  			return false;
  		}

  		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
  		var test3 = {};
  		'abcdefghijklmnopqrst'.split('').forEach(function (letter) {
  			test3[letter] = letter;
  		});
  		if (Object.keys(Object.assign({}, test3)).join('') !==
  				'abcdefghijklmnopqrst') {
  			return false;
  		}

  		return true;
  	} catch (err) {
  		// We don't expect any of the above to throw, but better to be safe.
  		return false;
  	}
  }

  var objectAssign = shouldUseNative() ? Object.assign : function (target, source) {
  	var from;
  	var to = toObject(target);
  	var symbols;

  	for (var s = 1; s < arguments.length; s++) {
  		from = Object(arguments[s]);

  		for (var key in from) {
  			if (hasOwnProperty.call(from, key)) {
  				to[key] = from[key];
  			}
  		}

  		if (getOwnPropertySymbols) {
  			symbols = getOwnPropertySymbols(from);
  			for (var i = 0; i < symbols.length; i++) {
  				if (propIsEnumerable.call(from, symbols[i])) {
  					to[symbols[i]] = from[symbols[i]];
  				}
  			}
  		}
  	}

  	return to;
  };

  var objectAssign$1 = /*#__PURE__*/Object.freeze({
    default: objectAssign,
    __moduleExports: objectAssign
  });

  /**
   * Copyright (c) 2013-present, Facebook, Inc.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   */

  var ReactPropTypesSecret = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED';

  var ReactPropTypesSecret_1 = ReactPropTypesSecret;

  var ReactPropTypesSecret$1 = /*#__PURE__*/Object.freeze({
    default: ReactPropTypesSecret_1,
    __moduleExports: ReactPropTypesSecret_1
  });

  var require$$0 = ( ReactPropTypesSecret$1 && ReactPropTypesSecret_1 ) || ReactPropTypesSecret$1;

  var printWarning = function() {};

  {
    var ReactPropTypesSecret$2 = require$$0;
    var loggedTypeFailures = {};

    printWarning = function(text) {
      var message = 'Warning: ' + text;
      if (typeof console !== 'undefined') {
        console.error(message);
      }
      try {
        // --- Welcome to debugging React ---
        // This error was thrown as a convenience so that you can use this stack
        // to find the callsite that caused this warning to fire.
        throw new Error(message);
      } catch (x) {}
    };
  }

  /**
   * Assert that the values match with the type specs.
   * Error messages are memorized and will only be shown once.
   *
   * @param {object} typeSpecs Map of name to a ReactPropType
   * @param {object} values Runtime values that need to be type-checked
   * @param {string} location e.g. "prop", "context", "child context"
   * @param {string} componentName Name of the component for error messages.
   * @param {?Function} getStack Returns the component stack.
   * @private
   */
  function checkPropTypes(typeSpecs, values, location, componentName, getStack) {
    {
      for (var typeSpecName in typeSpecs) {
        if (typeSpecs.hasOwnProperty(typeSpecName)) {
          var error;
          // Prop type validation may throw. In case they do, we don't want to
          // fail the render phase where it didn't fail before. So we log it.
          // After these have been cleaned up, we'll let them throw.
          try {
            // This is intentionally an invariant that gets caught. It's the same
            // behavior as without this statement except with a better message.
            if (typeof typeSpecs[typeSpecName] !== 'function') {
              var err = Error(
                (componentName || 'React class') + ': ' + location + ' type `' + typeSpecName + '` is invalid; ' +
                'it must be a function, usually from the `prop-types` package, but received `' + typeof typeSpecs[typeSpecName] + '`.'
              );
              err.name = 'Invariant Violation';
              throw err;
            }
            error = typeSpecs[typeSpecName](values, typeSpecName, componentName, location, null, ReactPropTypesSecret$2);
          } catch (ex) {
            error = ex;
          }
          if (error && !(error instanceof Error)) {
            printWarning(
              (componentName || 'React class') + ': type specification of ' +
              location + ' `' + typeSpecName + '` is invalid; the type checker ' +
              'function must return `null` or an `Error` but returned a ' + typeof error + '. ' +
              'You may have forgotten to pass an argument to the type checker ' +
              'creator (arrayOf, instanceOf, objectOf, oneOf, oneOfType, and ' +
              'shape all require an argument).'
            );

          }
          if (error instanceof Error && !(error.message in loggedTypeFailures)) {
            // Only monitor this failure once because there tends to be a lot of the
            // same error.
            loggedTypeFailures[error.message] = true;

            var stack = getStack ? getStack() : '';

            printWarning(
              'Failed ' + location + ' type: ' + error.message + (stack != null ? stack : '')
            );
          }
        }
      }
    }
  }

  var checkPropTypes_1 = checkPropTypes;

  var checkPropTypes$1 = /*#__PURE__*/Object.freeze({
    default: checkPropTypes_1,
    __moduleExports: checkPropTypes_1
  });

  var assign = ( objectAssign$1 && objectAssign ) || objectAssign$1;

  var checkPropTypes$2 = ( checkPropTypes$1 && checkPropTypes_1 ) || checkPropTypes$1;

  var printWarning$1 = function() {};

  {
    printWarning$1 = function(text) {
      var message = 'Warning: ' + text;
      if (typeof console !== 'undefined') {
        console.error(message);
      }
      try {
        // --- Welcome to debugging React ---
        // This error was thrown as a convenience so that you can use this stack
        // to find the callsite that caused this warning to fire.
        throw new Error(message);
      } catch (x) {}
    };
  }

  function emptyFunctionThatReturnsNull() {
    return null;
  }

  var factoryWithTypeCheckers = function(isValidElement, throwOnDirectAccess) {
    /* global Symbol */
    var ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
    var FAUX_ITERATOR_SYMBOL = '@@iterator'; // Before Symbol spec.

    /**
     * Returns the iterator method function contained on the iterable object.
     *
     * Be sure to invoke the function with the iterable as context:
     *
     *     var iteratorFn = getIteratorFn(myIterable);
     *     if (iteratorFn) {
     *       var iterator = iteratorFn.call(myIterable);
     *       ...
     *     }
     *
     * @param {?object} maybeIterable
     * @return {?function}
     */
    function getIteratorFn(maybeIterable) {
      var iteratorFn = maybeIterable && (ITERATOR_SYMBOL && maybeIterable[ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL]);
      if (typeof iteratorFn === 'function') {
        return iteratorFn;
      }
    }

    /**
     * Collection of methods that allow declaration and validation of props that are
     * supplied to React components. Example usage:
     *
     *   var Props = require('ReactPropTypes');
     *   var MyArticle = React.createClass({
     *     propTypes: {
     *       // An optional string prop named "description".
     *       description: Props.string,
     *
     *       // A required enum prop named "category".
     *       category: Props.oneOf(['News','Photos']).isRequired,
     *
     *       // A prop named "dialog" that requires an instance of Dialog.
     *       dialog: Props.instanceOf(Dialog).isRequired
     *     },
     *     render: function() { ... }
     *   });
     *
     * A more formal specification of how these methods are used:
     *
     *   type := array|bool|func|object|number|string|oneOf([...])|instanceOf(...)
     *   decl := ReactPropTypes.{type}(.isRequired)?
     *
     * Each and every declaration produces a function with the same signature. This
     * allows the creation of custom validation functions. For example:
     *
     *  var MyLink = React.createClass({
     *    propTypes: {
     *      // An optional string or URI prop named "href".
     *      href: function(props, propName, componentName) {
     *        var propValue = props[propName];
     *        if (propValue != null && typeof propValue !== 'string' &&
     *            !(propValue instanceof URI)) {
     *          return new Error(
     *            'Expected a string or an URI for ' + propName + ' in ' +
     *            componentName
     *          );
     *        }
     *      }
     *    },
     *    render: function() {...}
     *  });
     *
     * @internal
     */

    var ANONYMOUS = '<<anonymous>>';

    // Important!
    // Keep this list in sync with production version in `./factoryWithThrowingShims.js`.
    var ReactPropTypes = {
      array: createPrimitiveTypeChecker('array'),
      bool: createPrimitiveTypeChecker('boolean'),
      func: createPrimitiveTypeChecker('function'),
      number: createPrimitiveTypeChecker('number'),
      object: createPrimitiveTypeChecker('object'),
      string: createPrimitiveTypeChecker('string'),
      symbol: createPrimitiveTypeChecker('symbol'),

      any: createAnyTypeChecker(),
      arrayOf: createArrayOfTypeChecker,
      element: createElementTypeChecker(),
      instanceOf: createInstanceTypeChecker,
      node: createNodeChecker(),
      objectOf: createObjectOfTypeChecker,
      oneOf: createEnumTypeChecker,
      oneOfType: createUnionTypeChecker,
      shape: createShapeTypeChecker,
      exact: createStrictShapeTypeChecker,
    };

    /**
     * inlined Object.is polyfill to avoid requiring consumers ship their own
     * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is
     */
    /*eslint-disable no-self-compare*/
    function is(x, y) {
      // SameValue algorithm
      if (x === y) {
        // Steps 1-5, 7-10
        // Steps 6.b-6.e: +0 != -0
        return x !== 0 || 1 / x === 1 / y;
      } else {
        // Step 6.a: NaN == NaN
        return x !== x && y !== y;
      }
    }
    /*eslint-enable no-self-compare*/

    /**
     * We use an Error-like object for backward compatibility as people may call
     * PropTypes directly and inspect their output. However, we don't use real
     * Errors anymore. We don't inspect their stack anyway, and creating them
     * is prohibitively expensive if they are created too often, such as what
     * happens in oneOfType() for any type before the one that matched.
     */
    function PropTypeError(message) {
      this.message = message;
      this.stack = '';
    }
    // Make `instanceof Error` still work for returned errors.
    PropTypeError.prototype = Error.prototype;

    function createChainableTypeChecker(validate) {
      {
        var manualPropTypeCallCache = {};
        var manualPropTypeWarningCount = 0;
      }
      function checkType(isRequired, props, propName, componentName, location, propFullName, secret) {
        componentName = componentName || ANONYMOUS;
        propFullName = propFullName || propName;

        if (secret !== require$$0) {
          if (throwOnDirectAccess) {
            // New behavior only for users of `prop-types` package
            var err = new Error(
              'Calling PropTypes validators directly is not supported by the `prop-types` package. ' +
              'Use `PropTypes.checkPropTypes()` to call them. ' +
              'Read more at http://fb.me/use-check-prop-types'
            );
            err.name = 'Invariant Violation';
            throw err;
          } else if (typeof console !== 'undefined') {
            // Old behavior for people using React.PropTypes
            var cacheKey = componentName + ':' + propName;
            if (
              !manualPropTypeCallCache[cacheKey] &&
              // Avoid spamming the console because they are often not actionable except for lib authors
              manualPropTypeWarningCount < 3
            ) {
              printWarning$1(
                'You are manually calling a React.PropTypes validation ' +
                'function for the `' + propFullName + '` prop on `' + componentName  + '`. This is deprecated ' +
                'and will throw in the standalone `prop-types` package. ' +
                'You may be seeing this warning due to a third-party PropTypes ' +
                'library. See https://fb.me/react-warning-dont-call-proptypes ' + 'for details.'
              );
              manualPropTypeCallCache[cacheKey] = true;
              manualPropTypeWarningCount++;
            }
          }
        }
        if (props[propName] == null) {
          if (isRequired) {
            if (props[propName] === null) {
              return new PropTypeError('The ' + location + ' `' + propFullName + '` is marked as required ' + ('in `' + componentName + '`, but its value is `null`.'));
            }
            return new PropTypeError('The ' + location + ' `' + propFullName + '` is marked as required in ' + ('`' + componentName + '`, but its value is `undefined`.'));
          }
          return null;
        } else {
          return validate(props, propName, componentName, location, propFullName);
        }
      }

      var chainedCheckType = checkType.bind(null, false);
      chainedCheckType.isRequired = checkType.bind(null, true);

      return chainedCheckType;
    }

    function createPrimitiveTypeChecker(expectedType) {
      function validate(props, propName, componentName, location, propFullName, secret) {
        var propValue = props[propName];
        var propType = getPropType(propValue);
        if (propType !== expectedType) {
          // `propValue` being instance of, say, date/regexp, pass the 'object'
          // check, but we can offer a more precise error message here rather than
          // 'of type `object`'.
          var preciseType = getPreciseType(propValue);

          return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + preciseType + '` supplied to `' + componentName + '`, expected ') + ('`' + expectedType + '`.'));
        }
        return null;
      }
      return createChainableTypeChecker(validate);
    }

    function createAnyTypeChecker() {
      return createChainableTypeChecker(emptyFunctionThatReturnsNull);
    }

    function createArrayOfTypeChecker(typeChecker) {
      function validate(props, propName, componentName, location, propFullName) {
        if (typeof typeChecker !== 'function') {
          return new PropTypeError('Property `' + propFullName + '` of component `' + componentName + '` has invalid PropType notation inside arrayOf.');
        }
        var propValue = props[propName];
        if (!Array.isArray(propValue)) {
          var propType = getPropType(propValue);
          return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected an array.'));
        }
        for (var i = 0; i < propValue.length; i++) {
          var error = typeChecker(propValue, i, componentName, location, propFullName + '[' + i + ']', require$$0);
          if (error instanceof Error) {
            return error;
          }
        }
        return null;
      }
      return createChainableTypeChecker(validate);
    }

    function createElementTypeChecker() {
      function validate(props, propName, componentName, location, propFullName) {
        var propValue = props[propName];
        if (!isValidElement(propValue)) {
          var propType = getPropType(propValue);
          return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected a single ReactElement.'));
        }
        return null;
      }
      return createChainableTypeChecker(validate);
    }

    function createInstanceTypeChecker(expectedClass) {
      function validate(props, propName, componentName, location, propFullName) {
        if (!(props[propName] instanceof expectedClass)) {
          var expectedClassName = expectedClass.name || ANONYMOUS;
          var actualClassName = getClassName(props[propName]);
          return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + actualClassName + '` supplied to `' + componentName + '`, expected ') + ('instance of `' + expectedClassName + '`.'));
        }
        return null;
      }
      return createChainableTypeChecker(validate);
    }

    function createEnumTypeChecker(expectedValues) {
      if (!Array.isArray(expectedValues)) {
        printWarning$1('Invalid argument supplied to oneOf, expected an instance of array.');
        return emptyFunctionThatReturnsNull;
      }

      function validate(props, propName, componentName, location, propFullName) {
        var propValue = props[propName];
        for (var i = 0; i < expectedValues.length; i++) {
          if (is(propValue, expectedValues[i])) {
            return null;
          }
        }

        var valuesString = JSON.stringify(expectedValues);
        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of value `' + propValue + '` ' + ('supplied to `' + componentName + '`, expected one of ' + valuesString + '.'));
      }
      return createChainableTypeChecker(validate);
    }

    function createObjectOfTypeChecker(typeChecker) {
      function validate(props, propName, componentName, location, propFullName) {
        if (typeof typeChecker !== 'function') {
          return new PropTypeError('Property `' + propFullName + '` of component `' + componentName + '` has invalid PropType notation inside objectOf.');
        }
        var propValue = props[propName];
        var propType = getPropType(propValue);
        if (propType !== 'object') {
          return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected an object.'));
        }
        for (var key in propValue) {
          if (propValue.hasOwnProperty(key)) {
            var error = typeChecker(propValue, key, componentName, location, propFullName + '.' + key, require$$0);
            if (error instanceof Error) {
              return error;
            }
          }
        }
        return null;
      }
      return createChainableTypeChecker(validate);
    }

    function createUnionTypeChecker(arrayOfTypeCheckers) {
      if (!Array.isArray(arrayOfTypeCheckers)) {
        printWarning$1('Invalid argument supplied to oneOfType, expected an instance of array.');
        return emptyFunctionThatReturnsNull;
      }

      for (var i = 0; i < arrayOfTypeCheckers.length; i++) {
        var checker = arrayOfTypeCheckers[i];
        if (typeof checker !== 'function') {
          printWarning$1(
            'Invalid argument supplied to oneOfType. Expected an array of check functions, but ' +
            'received ' + getPostfixForTypeWarning(checker) + ' at index ' + i + '.'
          );
          return emptyFunctionThatReturnsNull;
        }
      }

      function validate(props, propName, componentName, location, propFullName) {
        for (var i = 0; i < arrayOfTypeCheckers.length; i++) {
          var checker = arrayOfTypeCheckers[i];
          if (checker(props, propName, componentName, location, propFullName, require$$0) == null) {
            return null;
          }
        }

        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` supplied to ' + ('`' + componentName + '`.'));
      }
      return createChainableTypeChecker(validate);
    }

    function createNodeChecker() {
      function validate(props, propName, componentName, location, propFullName) {
        if (!isNode(props[propName])) {
          return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` supplied to ' + ('`' + componentName + '`, expected a ReactNode.'));
        }
        return null;
      }
      return createChainableTypeChecker(validate);
    }

    function createShapeTypeChecker(shapeTypes) {
      function validate(props, propName, componentName, location, propFullName) {
        var propValue = props[propName];
        var propType = getPropType(propValue);
        if (propType !== 'object') {
          return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type `' + propType + '` ' + ('supplied to `' + componentName + '`, expected `object`.'));
        }
        for (var key in shapeTypes) {
          var checker = shapeTypes[key];
          if (!checker) {
            continue;
          }
          var error = checker(propValue, key, componentName, location, propFullName + '.' + key, require$$0);
          if (error) {
            return error;
          }
        }
        return null;
      }
      return createChainableTypeChecker(validate);
    }

    function createStrictShapeTypeChecker(shapeTypes) {
      function validate(props, propName, componentName, location, propFullName) {
        var propValue = props[propName];
        var propType = getPropType(propValue);
        if (propType !== 'object') {
          return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type `' + propType + '` ' + ('supplied to `' + componentName + '`, expected `object`.'));
        }
        // We need to check all keys in case some are required but missing from
        // props.
        var allKeys = assign({}, props[propName], shapeTypes);
        for (var key in allKeys) {
          var checker = shapeTypes[key];
          if (!checker) {
            return new PropTypeError(
              'Invalid ' + location + ' `' + propFullName + '` key `' + key + '` supplied to `' + componentName + '`.' +
              '\nBad object: ' + JSON.stringify(props[propName], null, '  ') +
              '\nValid keys: ' +  JSON.stringify(Object.keys(shapeTypes), null, '  ')
            );
          }
          var error = checker(propValue, key, componentName, location, propFullName + '.' + key, require$$0);
          if (error) {
            return error;
          }
        }
        return null;
      }

      return createChainableTypeChecker(validate);
    }

    function isNode(propValue) {
      switch (typeof propValue) {
        case 'number':
        case 'string':
        case 'undefined':
          return true;
        case 'boolean':
          return !propValue;
        case 'object':
          if (Array.isArray(propValue)) {
            return propValue.every(isNode);
          }
          if (propValue === null || isValidElement(propValue)) {
            return true;
          }

          var iteratorFn = getIteratorFn(propValue);
          if (iteratorFn) {
            var iterator = iteratorFn.call(propValue);
            var step;
            if (iteratorFn !== propValue.entries) {
              while (!(step = iterator.next()).done) {
                if (!isNode(step.value)) {
                  return false;
                }
              }
            } else {
              // Iterator will provide entry [k,v] tuples rather than values.
              while (!(step = iterator.next()).done) {
                var entry = step.value;
                if (entry) {
                  if (!isNode(entry[1])) {
                    return false;
                  }
                }
              }
            }
          } else {
            return false;
          }

          return true;
        default:
          return false;
      }
    }

    function isSymbol(propType, propValue) {
      // Native Symbol.
      if (propType === 'symbol') {
        return true;
      }

      // 19.4.3.5 Symbol.prototype[@@toStringTag] === 'Symbol'
      if (propValue['@@toStringTag'] === 'Symbol') {
        return true;
      }

      // Fallback for non-spec compliant Symbols which are polyfilled.
      if (typeof Symbol === 'function' && propValue instanceof Symbol) {
        return true;
      }

      return false;
    }

    // Equivalent of `typeof` but with special handling for array and regexp.
    function getPropType(propValue) {
      var propType = typeof propValue;
      if (Array.isArray(propValue)) {
        return 'array';
      }
      if (propValue instanceof RegExp) {
        // Old webkits (at least until Android 4.0) return 'function' rather than
        // 'object' for typeof a RegExp. We'll normalize this here so that /bla/
        // passes PropTypes.object.
        return 'object';
      }
      if (isSymbol(propType, propValue)) {
        return 'symbol';
      }
      return propType;
    }

    // This handles more types than `getPropType`. Only used for error messages.
    // See `createPrimitiveTypeChecker`.
    function getPreciseType(propValue) {
      if (typeof propValue === 'undefined' || propValue === null) {
        return '' + propValue;
      }
      var propType = getPropType(propValue);
      if (propType === 'object') {
        if (propValue instanceof Date) {
          return 'date';
        } else if (propValue instanceof RegExp) {
          return 'regexp';
        }
      }
      return propType;
    }

    // Returns a string that is postfixed to a warning about an invalid type.
    // For example, "undefined" or "of type array"
    function getPostfixForTypeWarning(value) {
      var type = getPreciseType(value);
      switch (type) {
        case 'array':
        case 'object':
          return 'an ' + type;
        case 'boolean':
        case 'date':
        case 'regexp':
          return 'a ' + type;
        default:
          return type;
      }
    }

    // Returns class name of the object, if any.
    function getClassName(propValue) {
      if (!propValue.constructor || !propValue.constructor.name) {
        return ANONYMOUS;
      }
      return propValue.constructor.name;
    }

    ReactPropTypes.checkPropTypes = checkPropTypes$2;
    ReactPropTypes.PropTypes = ReactPropTypes;

    return ReactPropTypes;
  };

  var factoryWithTypeCheckers$1 = /*#__PURE__*/Object.freeze({
    default: factoryWithTypeCheckers,
    __moduleExports: factoryWithTypeCheckers
  });

  var require$$0$1 = ( factoryWithTypeCheckers$1 && factoryWithTypeCheckers ) || factoryWithTypeCheckers$1;

  var propTypes = createCommonjsModule(function (module) {
  /**
   * Copyright (c) 2013-present, Facebook, Inc.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   */

  {
    var REACT_ELEMENT_TYPE = (typeof Symbol === 'function' &&
      Symbol.for &&
      Symbol.for('react.element')) ||
      0xeac7;

    var isValidElement = function(object) {
      return typeof object === 'object' &&
        object !== null &&
        object.$$typeof === REACT_ELEMENT_TYPE;
    };

    // By explicitly using `prop-types` you are opting into new development behavior.
    // http://fb.me/prop-types-in-prod
    var throwOnDirectAccess = true;
    module.exports = require$$0$1(isValidElement, throwOnDirectAccess);
  }
  });

  var isIE = !!document.documentElement.currentStyle;
  var HIDDEN_TEXTAREA_STYLE = {
    'min-height': '0',
    'max-height': 'none',
    height: '0',
    visibility: 'hidden',
    overflow: 'hidden',
    position: 'absolute',
    'z-index': '-1000',
    top: '0',
    right: '0'
  };
  var SIZING_STYLE = ['letter-spacing', 'line-height', 'font-family', 'font-weight', 'font-size', 'font-style', 'tab-size', 'text-rendering', 'text-transform', 'width', 'text-indent', 'padding-top', 'padding-right', 'padding-bottom', 'padding-left', 'border-top-width', 'border-right-width', 'border-bottom-width', 'border-left-width', 'box-sizing'];
  var computedStyleCache = {};
  var hiddenTextarea = document.createElement('textarea');

  var forceHiddenStyles = function forceHiddenStyles(node) {
    Object.keys(HIDDEN_TEXTAREA_STYLE).forEach(function (key) {
      node.style.setProperty(key, HIDDEN_TEXTAREA_STYLE[key], 'important');
    });
  };

  {
    forceHiddenStyles(hiddenTextarea);
  }

  function calculateNodeHeight(uiTextNode, uid, useCache, minRows, maxRows) {
    if (useCache === void 0) {
      useCache = false;
    }

    if (minRows === void 0) {
      minRows = null;
    }

    if (maxRows === void 0) {
      maxRows = null;
    }

    if (hiddenTextarea.parentNode === null) {
      document.body.appendChild(hiddenTextarea);
    } // Copy all CSS properties that have an impact on the height of the content in
    // the textbox


    var nodeStyling = calculateNodeStyling(uiTextNode, uid, useCache);

    if (nodeStyling === null) {
      return null;
    }

    var paddingSize = nodeStyling.paddingSize,
        borderSize = nodeStyling.borderSize,
        boxSizing = nodeStyling.boxSizing,
        sizingStyle = nodeStyling.sizingStyle; // Need to have the overflow attribute to hide the scrollbar otherwise
    // text-lines will not calculated properly as the shadow will technically be
    // narrower for content

    Object.keys(sizingStyle).forEach(function (key) {
      hiddenTextarea.style[key] = sizingStyle[key];
    });
    forceHiddenStyles(hiddenTextarea);
    hiddenTextarea.value = uiTextNode.value || uiTextNode.placeholder || 'x';
    var minHeight = -Infinity;
    var maxHeight = Infinity;
    var height = hiddenTextarea.scrollHeight;

    if (boxSizing === 'border-box') {
      // border-box: add border, since height = content + padding + border
      height = height + borderSize;
    } else if (boxSizing === 'content-box') {
      // remove padding, since height = content
      height = height - paddingSize;
    } // measure height of a textarea with a single row


    hiddenTextarea.value = 'x';
    var singleRowHeight = hiddenTextarea.scrollHeight - paddingSize; // Stores the value's rows count rendered in `hiddenTextarea`,
    // regardless if `maxRows` or `minRows` props are passed

    var valueRowCount = Math.floor(height / singleRowHeight);

    if (minRows !== null) {
      minHeight = singleRowHeight * minRows;

      if (boxSizing === 'border-box') {
        minHeight = minHeight + paddingSize + borderSize;
      }

      height = Math.max(minHeight, height);
    }

    if (maxRows !== null) {
      maxHeight = singleRowHeight * maxRows;

      if (boxSizing === 'border-box') {
        maxHeight = maxHeight + paddingSize + borderSize;
      }

      height = Math.min(maxHeight, height);
    }

    var rowCount = Math.floor(height / singleRowHeight);
    return {
      height: height,
      minHeight: minHeight,
      maxHeight: maxHeight,
      rowCount: rowCount,
      valueRowCount: valueRowCount
    };
  }

  function calculateNodeStyling(node, uid, useCache) {
    if (useCache === void 0) {
      useCache = false;
    }

    if (useCache && computedStyleCache[uid]) {
      return computedStyleCache[uid];
    }

    var style = window.getComputedStyle(node);

    if (style === null) {
      return null;
    }

    var sizingStyle = SIZING_STYLE.reduce(function (obj, name) {
      obj[name] = style.getPropertyValue(name);
      return obj;
    }, {});
    var boxSizing = sizingStyle['box-sizing']; // probably node is detached from DOM, can't read computed dimensions

    if (boxSizing === '') {
      return null;
    } // IE (Edge has already correct behaviour) returns content width as computed width
    // so we need to add manually padding and border widths


    if (isIE && boxSizing === 'border-box') {
      sizingStyle.width = parseFloat(sizingStyle.width) + parseFloat(style['border-right-width']) + parseFloat(style['border-left-width']) + parseFloat(style['padding-right']) + parseFloat(style['padding-left']) + 'px';
    }

    var paddingSize = parseFloat(sizingStyle['padding-bottom']) + parseFloat(sizingStyle['padding-top']);
    var borderSize = parseFloat(sizingStyle['border-bottom-width']) + parseFloat(sizingStyle['border-top-width']);
    var nodeInfo = {
      sizingStyle: sizingStyle,
      paddingSize: paddingSize,
      borderSize: borderSize,
      boxSizing: boxSizing
    };

    if (useCache) {
      computedStyleCache[uid] = nodeInfo;
    }

    return nodeInfo;
  }

  var purgeCache = function purgeCache(uid) {
    delete computedStyleCache[uid];
  };

  var noop = function noop() {}; // IE11 has a problem with eval source maps, can be reproduced with:
  // eval('"use strict"; var onNextFrame = window.cancelAnimationFrame; onNextFrame(4);')
  // so we bind window as context in dev modes


  var _ref = window.requestAnimationFrame ? [window.requestAnimationFrame.bind(window), window.cancelAnimationFrame.bind(window)] : [setTimeout, clearTimeout],
      onNextFrame = _ref[0],
      clearNextFrameAction = _ref[1];

  var uid = 0;

  var TextareaAutosize =
  /*#__PURE__*/
  function (_React$Component) {
    _inheritsLoose(TextareaAutosize, _React$Component);

    function TextareaAutosize(props) {
      var _this;

      _this = _React$Component.call(this, props) || this;

      _this._onRef = function (node) {
        _this._ref = node;

        _this.props.inputRef(node);
      };

      _this._onChange = function (event) {
        if (!_this._controlled) {
          _this._resizeComponent();
        }

        _this.props.onChange(event, _assertThisInitialized(_assertThisInitialized(_this)));
      };

      _this._resizeComponent = function (callback) {
        if (callback === void 0) {
          callback = noop;
        }

        var nodeHeight = calculateNodeHeight(_this._ref, _this._uid, _this.props.useCacheForDOMMeasurements, _this.props.minRows, _this.props.maxRows);

        if (nodeHeight === null) {
          callback();
          return;
        }

        var height = nodeHeight.height,
            minHeight = nodeHeight.minHeight,
            maxHeight = nodeHeight.maxHeight,
            rowCount = nodeHeight.rowCount,
            valueRowCount = nodeHeight.valueRowCount;
        _this.rowCount = rowCount;
        _this.valueRowCount = valueRowCount;

        if (_this.state.height !== height || _this.state.minHeight !== minHeight || _this.state.maxHeight !== maxHeight) {
          _this.setState({
            height: height,
            minHeight: minHeight,
            maxHeight: maxHeight
          }, callback);

          return;
        }

        callback();
      };

      _this.state = {
        height: props.style && props.style.height || 0,
        minHeight: -Infinity,
        maxHeight: Infinity
      };
      _this._uid = uid++;
      _this._controlled = props.value !== undefined;
      _this._resizeLock = false;
      return _this;
    }

    var _proto = TextareaAutosize.prototype;

    _proto.render = function render() {
      var _this$props = this.props,
          _inputRef = _this$props.inputRef,
          _maxRows = _this$props.maxRows,
          _minRows = _this$props.minRows,
          _onHeightChange = _this$props.onHeightChange,
          _useCacheForDOMMeasurements = _this$props.useCacheForDOMMeasurements,
          props = _objectWithoutProperties(_this$props, ["inputRef", "maxRows", "minRows", "onHeightChange", "useCacheForDOMMeasurements"]);

      props.style = _extends({}, props.style, {
        height: this.state.height
      });
      var maxHeight = Math.max(props.style.maxHeight || Infinity, this.state.maxHeight);

      if (maxHeight < this.state.height) {
        props.style.overflow = 'hidden';
      }

      return React.createElement("textarea", _extends({}, props, {
        onChange: this._onChange,
        ref: this._onRef
      }));
    };

    _proto.componentDidMount = function componentDidMount() {
      var _this2 = this;

      this._resizeComponent(); // Working around Firefox bug which runs resize listeners even when other JS is running at the same moment
      // causing competing rerenders (due to setState in the listener) in React.
      // More can be found here - facebook/react#6324


      this._resizeListener = function () {
        if (_this2._resizeLock) {
          return;
        }

        _this2._resizeLock = true;

        _this2._resizeComponent(function () {
          _this2._resizeLock = false;
        });
      };

      window.addEventListener('resize', this._resizeListener);
    };

    _proto.componentDidUpdate = function componentDidUpdate(prevProps, prevState) {
      if (prevProps !== this.props) {
        clearNextFrameAction(this._rafId);
        this._rafId = onNextFrame(this._resizeComponent);
      }

      if (this.state.height !== prevState.height) {
        this.props.onHeightChange(this.state.height, this);
      }
    };

    _proto.componentWillUnmount = function componentWillUnmount() {
      clearNextFrameAction(this._rafId);
      window.removeEventListener('resize', this._resizeListener);
      purgeCache(this._uid);
    };

    return TextareaAutosize;
  }(React.Component);

  TextareaAutosize.defaultProps = {
    inputRef: noop,
    onChange: noop,
    onHeightChange: noop,
    useCacheForDOMMeasurements: false
  };
  TextareaAutosize.propTypes = {
    inputRef: propTypes.func,
    maxRows: propTypes.number,
    minRows: propTypes.number,
    onChange: propTypes.func,
    onHeightChange: propTypes.func,
    useCacheForDOMMeasurements: propTypes.bool,
    value: propTypes.string
  };

  exports.default = TextareaAutosize;

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

})));
