2r-stepper/examples/dist/app.js

2R library stepper component implemented in React

(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
'use strict';

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 _get = function get(_x, _x2, _x3) { var _again = true; _function: while (_again) { var object = _x, property = _x2, receiver = _x3; desc = parent = getter = undefined; _again = false; if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { _x = parent; _x2 = property; _x3 = receiver; _again = true; continue _function; } } else if ('value' in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } } };

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) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _classnames = require('classnames');

var _classnames2 = _interopRequireDefault(_classnames);

var _rStepperStyle = require('./2r-stepper.style');

var _rStepperStyle2 = _interopRequireDefault(_rStepperStyle);

var Stepper = (function (_React$Component) {
  _inherits(Stepper, _React$Component);

  /**
   * Constructor
   * Sets `state` and `config` based on passed props
   *
   * @method construtor
   */

  function Stepper(props) {
    _classCallCheck(this, Stepper);

    _get(Object.getPrototypeOf(Stepper.prototype), 'constructor', this).call(this, props);

    this.state = {
      val: this.props.initialValue || 0
    };

    this.config = {
      stepValue: this.props.stepValue || 1,
      allowNegativeValues: this.props.allowNegativeValues || false,
      classes: this.props.classes || ''
    };
  }

  /**
   * Creates the base wrapper classes
   *
   * @method constructBaseWrapperClasses
   * @return {String} Base wrapper classes
   */

  _createClass(Stepper, [{
    key: 'constructBaseWrapperClasses',
    value: function constructBaseWrapperClasses() {
      var classesArr = this.config.classes ? this.props.classes.split(' ') : [];

      return (0, _classnames2['default'])('2r-stepper', classesArr);
    }

    /**
     * Increment the value of the stepper
     *
     * @method incrementValue
     */
  }, {
    key: 'incrementValue',
    value: function incrementValue() {
      this.setState({
        val: this.state.val + this.config.stepValue
      });
    }

    /**
     * Decrement the value of the stepper
     *
     * @method decrementValue
     */
  }, {
    key: 'decrementValue',
    value: function decrementValue() {
      this.setState({
        val: this.state.val - this.config.stepValue
      });
    }

    /**
     * Return whether we need to disable the decrement button or not
     * User can pass in `allowNegativeValues=true` as props to enable going below
     * zero. Otherwise, the button becomes disabled when reaching `0` or when the
     * difference between the current value and the step value will go below `0`
     *
     * @method disableDecrementButton
     * @return {Boolean} Whether we need to disable the decrement button
     */
  }, {
    key: 'disableDecrementButton',
    value: function disableDecrementButton() {
      var isZeroOrBelow = !this.state.val || this.state.val - this.config.stepValue < 0;

      return !this.config.allowNegativeValues && isZeroOrBelow;
    }
  }, {
    key: 'render',
    value: function render() {
      var baseWrapperClasses = this.constructBaseWrapperClasses();
      var isDecrementBtnDisabled = this.disableDecrementButton();

      return _react2['default'].createElement(
        'div',
        { className: baseWrapperClasses,
          style: _rStepperStyle2['default'].wrapper },
        _react2['default'].createElement(
          'button',
          { className: '2r-stepper__button',
            style: _rStepperStyle2['default'].button,
            onClick: this.decrementValue.bind(this),
            disabled: isDecrementBtnDisabled },
          '-'
        ),
        _react2['default'].createElement(
          'div',
          { className: '2r-stepper__value',
            style: _rStepperStyle2['default'].value },
          this.state.val
        ),
        _react2['default'].createElement(
          'button',
          { className: '2r-stepper__button',
            style: _rStepperStyle2['default'].button,
            onClick: this.incrementValue.bind(this) },
          '+'
        )
      );
    }
  }]);

  return Stepper;
})(_react2['default'].Component);

Stepper.propTypes = {
  initialValue: _react2['default'].PropTypes.number,
  stepValue: _react2['default'].PropTypes.number,
  allowNegativeValues: _react2['default'].PropTypes.bool,
  classes: _react2['default'].PropTypes.string
};

exports['default'] = Stepper;
module.exports = exports['default'];

},{"./2r-stepper.style":2,"classnames":5,"react":160}],2:[function(require,module,exports){
/**
 * Basic layout, structure & visual styles for components inside `2r-stepper`
 * Inspired by the way styles are written in React Native
 */
'use strict';

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

  // styles for the wrapper (class of `2r-stepper`)
  wrapper: {
    display: 'inline-block',
    height: '32px',

    // reset space between inner components
    fontSize: 0
  },

  // styles for the buttons (class of `2r-stepper__button`)
  button: {
    display: 'inline-block',
    verticalAlign: 'middle',
    width: '32px',
    height: '32px',

    // basic visuals
    border: 'none',
    fontSize: '16px',
    padding: '0'
  },

  // styles for the value (class of `2r-stepper__value`)
  value: {
    display: 'inline-block',
    verticalAlign: 'middle',
    height: '32px',
    lineHeight: '32px',

    // basic visuals
    padding: '0 16px',
    fontSize: '16px'
  }

};

exports['default'] = stepperStyle;
module.exports = exports['default'];

},{}],3:[function(require,module,exports){
'use strict';

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _rStepper = require('../2r-stepper');

var _rStepper2 = _interopRequireDefault(_rStepper);

_react2['default'].render(_react2['default'].createElement(_rStepper2['default'], null), document.getElementById('stepperOne'));
_react2['default'].render(_react2['default'].createElement(_rStepper2['default'], { stepValue: 3, initialValue: 2,
  classes: 'customClass' }), document.getElementById('stepperTwo'));
_react2['default'].render(_react2['default'].createElement(_rStepper2['default'], { stepValue: 3, initialValue: 2, allowNegativeValues: true }), document.getElementById('stepperThree'));

},{"../2r-stepper":1,"react":160}],4:[function(require,module,exports){
// shim for using process in browser

var process = module.exports = {};
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;

function cleanUpNextTick() {
    draining = false;
    if (currentQueue.length) {
        queue = currentQueue.concat(queue);
    } else {
        queueIndex = -1;
    }
    if (queue.length) {
        drainQueue();
    }
}

function drainQueue() {
    if (draining) {
        return;
    }
    var timeout = setTimeout(cleanUpNextTick);
    draining = true;

    var len = queue.length;
    while(len) {
        currentQueue = queue;
        queue = [];
        while (++queueIndex < len) {
            currentQueue[queueIndex].run();
        }
        queueIndex = -1;
        len = queue.length;
    }
    currentQueue = null;
    draining = false;
    clearTimeout(timeout);
}

process.nextTick = function (fun) {
    var args = new Array(arguments.length - 1);
    if (arguments.length > 1) {
        for (var i = 1; i < arguments.length; i++) {
            args[i - 1] = arguments[i];
        }
    }
    queue.push(new Item(fun, args));
    if (queue.length === 1 && !draining) {
        setTimeout(drainQueue, 0);
    }
};

// v8 likes predictible objects
function Item(fun, array) {
    this.fun = fun;
    this.array = array;
}
Item.prototype.run = function () {
    this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};

function noop() {}

process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;

process.binding = function (name) {
    throw new Error('process.binding is not supported');
};

// TODO(shtylman)
process.cwd = function () { return '/' };
process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };

},{}],5:[function(require,module,exports){
/*!
  Copyright (c) 2015 Jed Watson.
  Licensed under the MIT License (MIT), see
  http://jedwatson.github.io/classnames
*/

(function () {
	'use strict';

	function classNames () {

		var classes = '';

		for (var i = 0; i < arguments.length; i++) {
			var arg = arguments[i];
			if (!arg) continue;

			var argType = typeof arg;

			if ('string' === argType || 'number' === argType) {
				classes += ' ' + arg;

			} else if (Array.isArray(arg)) {
				classes += ' ' + classNames.apply(null, arg);

			} else if ('object' === argType) {
				for (var key in arg) {
					if (arg.hasOwnProperty(key) && arg[key]) {
						classes += ' ' + key;
					}
				}
			}
		}

		return classes.substr(1);
	}

	if (typeof module !== 'undefined' && module.exports) {
		module.exports = classNames;
	} else if (typeof define === 'function' && typeof define.amd === 'object' && define.amd){
		// AMD. Register as an anonymous module.
		define(function () {
			return classNames;
		});
	} else {
		window.classNames = classNames;
	}

}());

},{}],6:[function(require,module,exports){
/**
 * Copyright 2013-2015, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule AutoFocusMixin
 * @typechecks static-only
 */

'use strict';

var focusNode = require("./focusNode");

var AutoFocusMixin = {
  componentDidMount: function() {
    if (this.props.autoFocus) {
      focusNode(this.getDOMNode());
    }
  }
};

module.exports = AutoFocusMixin;

},{"./focusNode":124}],7:[function(require,module,exports){
/**
 * Copyright 2013-2015 Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule BeforeInputEventPlugin
 * @typechecks static-only
 */

'use strict';

var EventConstants = require("./EventConstants");
var EventPropagators = require("./EventPropagators");
var ExecutionEnvironment = require("./ExecutionEnvironment");
var FallbackCompositionState = require("./FallbackCompositionState");
var SyntheticCompositionEvent = require("./SyntheticCompositionEvent");
var SyntheticInputEvent = require("./SyntheticInputEvent");

var keyOf = require("./keyOf");

var END_KEYCODES = [9, 13, 27, 32]; // Tab, Return, Esc, Space
var START_KEYCODE = 229;

var canUseCompositionEvent = (
  ExecutionEnvironment.canUseDOM &&
  'CompositionEvent' in window
);

var documentMode = null;
if (ExecutionEnvironment.canUseDOM && 'documentMode' in document) {
  documentMode = document.documentMode;
}

// Webkit offers a very useful `textInput` event that can be used to
// directly represent `beforeInput`. The IE `textinput` event is not as
// useful, so we don't use it.
var canUseTextInputEvent = (
  ExecutionEnvironment.canUseDOM &&
  'TextEvent' in window &&
  !documentMode &&
  !isPresto()
);

// In IE9+, we have access to composition events, but the data supplied
// by the native compositionend event may be incorrect. Japanese ideographic
// spaces, for instance (\u3000) are not recorded correctly.
var useFallbackCompositionData = (
  ExecutionEnvironment.canUseDOM &&
  (
    (!canUseCompositionEvent || documentMode && documentMode > 8 && documentMode <= 11)
  )
);

/**
 * Opera <= 12 includes TextEvent in window, but does not fire
 * text input events. Rely on keypress instead.
 */
function isPresto() {
  var opera = window.opera;
  return (
    typeof opera === 'object' &&
    typeof opera.version === 'function' &&
    parseInt(opera.version(), 10) <= 12
  );
}

var SPACEBAR_CODE = 32;
var SPACEBAR_CHAR = String.fromCharCode(SPACEBAR_CODE);

var topLevelTypes = EventConstants.topLevelTypes;

// Events and their corresponding property names.
var eventTypes = {
  beforeInput: {
    phasedRegistrationNames: {
      bubbled: keyOf({onBeforeInput: null}),
      captured: keyOf({onBeforeInputCapture: null})
    },
    dependencies: [
      topLevelTypes.topCompositionEnd,
      topLevelTypes.topKeyPress,
      topLevelTypes.topTextInput,
      topLevelTypes.topPaste
    ]
  },
  compositionEnd: {
    phasedRegistrationNames: {
      bubbled: keyOf({onCompositionEnd: null}),
      captured: keyOf({onCompositionEndCapture: null})
    },
    dependencies: [
      topLevelTypes.topBlur,
      topLevelTypes.topCompositionEnd,
      topLevelTypes.topKeyDown,
      topLevelTypes.topKeyPress,
      topLevelTypes.topKeyUp,
      topLevelTypes.topMouseDown
    ]
  },
  compositionStart: {
    phasedRegistrationNames: {
      bubbled: keyOf({onCompositionStart: null}),
      captured: keyOf({onCompositionStartCapture: null})
    },
    dependencies: [
      topLevelTypes.topBlur,
      topLevelTypes.topCompositionStart,
      topLevelTypes.topKeyDown,
      topLevelTypes.topKeyPress,
      topLevelTypes.topKeyUp,
      topLevelTypes.topMouseDown
    ]
  },
  compositionUpdate: {
    phasedRegistrationNames: {
      bubbled: keyOf({onCompositionUpdate: null}),
      captured: keyOf({onCompositionUpdateCapture: null})
    },
    dependencies: [
      topLevelTypes.topBlur,
      topLevelTypes.topCompositionUpdate,
      topLevelTypes.topKeyDown,
      topLevelTypes.topKeyPress,
      topLevelTypes.topKeyUp,
      topLevelTypes.topMouseDown
    ]
  }
};

// Track whether we've ever handled a keypress on the space key.
var hasSpaceKeypress = false;

/**
 * Return whether a native keypress event is assumed to be a command.
 * This is required because Firefox fires `keypress` events for key commands
 * (cut, copy, select-all, etc.) even though no character is inserted.
 */
function isKeypressCommand(nativeEvent) {
  return (
    (nativeEvent.ctrlKey || nativeEvent.altKey || nativeEvent.metaKey) &&
    // ctrlKey && altKey is equivalent to AltGr, and is not a command.
    !(nativeEvent.ctrlKey && nativeEvent.altKey)
  );
}


/**
 * Translate native top level events into event types.
 *
 * @param {string} topLevelType
 * @return {object}
 */
function getCompositionEventType(topLevelType) {
  switch (topLevelType) {
    case topLevelTypes.topCompositionStart:
      return eventTypes.compositionStart;
    case topLevelTypes.topCompositionEnd:
      return eventTypes.compositionEnd;
    case topLevelTypes.topCompositionUpdate:
      return eventTypes.compositionUpdate;
  }
}

/**
 * Does our fallback best-guess model think this event signifies that
 * composition has begun?
 *
 * @param {string} topLevelType
 * @param {object} nativeEvent
 * @return {boolean}
 */
function isFallbackCompositionStart(topLevelType, nativeEvent) {
  return (
    topLevelType === topLevelTypes.topKeyDown &&
    nativeEvent.keyCode === START_KEYCODE
  );
}

/**
 * Does our fallback mode think that this event is the end of composition?
 *
 * @param {string} topLevelType
 * @param {object} nativeEvent
 * @return {boolean}
 */
function isFallbackCompositionEnd(topLevelType, nativeEvent) {
  switch (topLevelType) {
    case topLevelTypes.topKeyUp:
      // Command keys insert or clear IME input.
      return (END_KEYCODES.indexOf(nativeEvent.keyCode) !== -1);
    case topLevelTypes.topKeyDown:
      // Expect IME keyCode on each keydown. If we get any other
      // code we must have exited earlier.
      return (nativeEvent.keyCode !== START_KEYCODE);
    case topLevelTypes.topKeyPress:
    case topLevelTypes.topMouseDown:
    case topLevelTypes.topBlur:
      // Events are not possible without cancelling IME.
      return true;
    default:
      return false;
  }
}

/**
 * Google Input Tools provides composition data via a CustomEvent,
 * with the `data` property populated in the `detail` object. If this
 * is available on the event object, use it. If not, this is a plain
 * composition event and we have nothing special to extract.
 *
 * @param {object} nativeEvent
 * @return {?string}
 */
function getDataFromCustomEvent(nativeEvent) {
  var detail = nativeEvent.detail;
  if (typeof detail === 'object' && 'data' in detail) {
    return detail.data;
  }
  return null;
}

// Track the current IME composition fallback object, if any.
var currentComposition = null;

/**
 * @param {string} topLevelType Record from `EventConstants`.
 * @param {DOMEventTarget} topLevelTarget The listening component root node.
 * @param {string} topLevelTargetID ID of `topLevelTarget`.
 * @param {object} nativeEvent Native browser event.
 * @return {?object} A SyntheticCompositionEvent.
 */
function extractCompositionEvent(
  topLevelType,
  topLevelTarget,
  topLevelTargetID,
  nativeEvent
) {
  var eventType;
  var fallbackData;

  if (canUseCompositionEvent) {
    eventType = getCompositionEventType(topLevelType);
  } else if (!currentComposition) {
    if (isFallbackCompositionStart(topLevelType, nativeEvent)) {
      eventType = eventTypes.compositionStart;
    }
  } else if (isFallbackCompositionEnd(topLevelType, nativeEvent)) {
    eventType = eventTypes.compositionEnd;
  }

  if (!eventType) {
    return null;
  }

  if (useFallbackCompositionData) {
    // The current composition is stored statically and must not be
    // overwritten while composition continues.
    if (!currentComposition && eventType === eventTypes.compositionStart) {
      currentComposition = FallbackCompositionState.getPooled(topLevelTarget);
    } else if (eventType === eventTypes.compositionEnd) {
      if (currentComposition) {
        fallbackData = currentComposition.getData();
      }
    }
  }

  var event = SyntheticCompositionEvent.getPooled(
    eventType,
    topLevelTargetID,
    nativeEvent
  );

  if (fallbackData) {
    // Inject data generated from fallback path into the synthetic event.
    // This matches the property of native CompositionEventInterface.
    event.data = fallbackData;
  } else {
    var customData = getDataFromCustomEvent(nativeEvent);
    if (customData !== null) {
      event.data = customData;
    }
  }

  EventPropagators.accumulateTwoPhaseDispatches(event);
  return event;
}

/**
 * @param {string} topLevelType Record from `EventConstants`.
 * @param {object} nativeEvent Native browser event.
 * @return {?string} The string corresponding to this `beforeInput` event.
 */
function getNativeBeforeInputChars(topLevelType, nativeEvent) {
  switch (topLevelType) {
    case topLevelTypes.topCompositionEnd:
      return getDataFromCustomEvent(nativeEvent);
    case topLevelTypes.topKeyPress:
      /**
       * If native `textInput` events are available, our goal is to make
       * use of them. However, there is a special case: the spacebar key.
       * In Webkit, preventing default on a spacebar `textInput` event
       * cancels character insertion, but it *also* causes the browser
       * to fall back to its default spacebar behavior of scrolling the
       * page.
       *
       * Tracking at:
       * https://code.google.com/p/chromium/issues/detail?id=355103
       *
       * To avoid this issue, use the keypress event as if no `textInput`
       * event is available.
       */
      var which = nativeEvent.which;
      if (which !== SPACEBAR_CODE) {
        return null;
      }

      hasSpaceKeypress = true;
      return SPACEBAR_CHAR;

    case topLevelTypes.topTextInput:
      // Record the characters to be added to the DOM.
      var chars = nativeEvent.data;

      // If it's a spacebar character, assume that we have already handled
      // it at the keypress level and bail immediately. Android Chrome
      // doesn't give us keycodes, so we need to blacklist it.
      if (chars === SPACEBAR_CHAR && hasSpaceKeypress) {
        return null;
      }

      return chars;

    default:
      // For other native event types, do nothing.
      return null;
  }
}

/**
 * For browsers that do not provide the `textInput` event, extract the
 * appropriate string to use for SyntheticInputEvent.
 *
 * @param {string} topLevelType Record from `EventConstants`.
 * @param {object} nativeEvent Native browser event.
 * @return {?string} The fallback string for this `beforeInput` event.
 */
function getFallbackBeforeInputChars(topLevelType, nativeEvent) {
  // If we are currently composing (IME) and using a fallback to do so,
  // try to extract the composed characters from the fallback object.
  if (currentComposition) {
    if (
      topLevelType === topLevelTypes.topCompositionEnd ||
      isFallbackCompositionEnd(topLevelType, nativeEvent)
    ) {
      var chars = currentComposition.getData();
      FallbackCompositionState.release(currentComposition);
      currentComposition = null;
      return chars;
    }
    return null;
  }

  switch (topLevelType) {
    case topLevelTypes.topPaste:
      // If a paste event occurs after a keypress, throw out the input
      // chars. Paste events should not lead to BeforeInput events.
      return null;
    case topLevelTypes.topKeyPress:
      /**
       * As of v27, Firefox may fire keypress events even when no character
       * will be inserted. A few possibilities:
       *
       * - `which` is `0`. Arrow keys, Esc key, etc.
       *
       * - `which` is the pressed key code, but no char is available.
       *   Ex: 'AltGr + d` in Polish. There is no modified character for
       *   this key combination and no character is inserted into the
       *   document, but FF fires the keypress for char code `100` anyway.
       *   No `input` event will occur.
       *
       * - `which` is the pressed key code, but a command combination is
       *   being used. Ex: `Cmd+C`. No character is inserted, and no
       *   `input` event will occur.
       */
      if (nativeEvent.which && !isKeypressCommand(nativeEvent)) {
        return String.fromCharCode(nativeEvent.which);
      }
      return null;
    case topLevelTypes.topCompositionEnd:
      return useFallbackCompositionData ? null : nativeEvent.data;
    default:
      return null;
  }
}

/**
 * Extract a SyntheticInputEvent for `beforeInput`, based on either native
 * `textInput` or fallback behavior.
 *
 * @param {string} topLevelType Record from `EventConstants`.
 * @param {DOMEventTarget} topLevelTarget The listening component root node.
 * @param {string} topLevelTargetID ID of `topLevelTarget`.
 * @param {object} nativeEvent Native browser event.
 * @return {?object} A SyntheticInputEvent.
 */
function extractBeforeInputEvent(
  topLevelType,
  topLevelTarget,
  topLevelTargetID,
  nativeEvent
) {
  var chars;

  if (canUseTextInputEvent) {
    chars = getNativeBeforeInputChars(topLevelType, nativeEvent);
  } else {
    chars = getFallbackBeforeInputChars(topLevelType, nativeEvent);
  }

  // If no characters are being inserted, no BeforeInput event should
  // be fired.
  if (!chars) {
    return null;
  }

  var event = SyntheticInputEvent.getPooled(
    eventTypes.beforeInput,
    topLevelTargetID,
    nativeEvent
  );

  event.data = chars;
  EventPropagators.accumulateTwoPhaseDispatches(event);
  return event;
}

/**
 * Create an `onBeforeInput` event to match
 * http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105/#events-inputevents.
 *
 * This event plugin is based on the native `textInput` event
 * available in Chrome, Safari, Opera, and IE. This event fires after
 * `onKeyPress` and `onCompositionEnd`, but before `onInput`.
 *
 * `beforeInput` is spec'd but not implemented in any browsers, and
 * the `input` event does not provide any useful information about what has
 * actually been added, contrary to the spec. Thus, `textInput` is the best
 * available event to identify the characters that have actually been inserted
 * into the target node.
 *
 * This plugin is also responsible for emitting `composition` events, thus
 * allowing us to share composition fallback code for both `beforeInput` and
 * `composition` event types.
 */
var BeforeInputEventPlugin = {

  eventTypes: eventTypes,

  /**
   * @param {string} topLevelType Record from `EventConstants`.
   * @param {DOMEventTarget} topLevelTarget The listening component root node.
   * @param {string} topLevelTargetID ID of `topLevelTarget`.
   * @param {object} nativeEvent Native browser event.
   * @return {*} An accumulation of synthetic events.
   * @see {EventPluginHub.extractEvents}
   */
  extractEvents: function(
    topLevelType,
    topLevelTarget,
    topLevelTargetID,
    nativeEvent
  ) {
    return [
      extractCompositionEvent(
        topLevelType,
        topLevelTarget,
        topLevelTargetID,
        nativeEvent
      ),
      extractBeforeInputEvent(
        topLevelType,
        topLevelTarget,
        topLevelTargetID,
        nativeEvent
      )
    ];
  }
};

module.exports = BeforeInputEventPlugin;

},{"./EventConstants":19,"./EventPropagators":24,"./ExecutionEnvironment":25,"./FallbackCompositionState":26,"./SyntheticCompositionEvent":98,"./SyntheticInputEvent":102,"./keyOf":146}],8:[function(require,module,exports){
/**
 * Copyright 2013-2015, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule CSSProperty
 */

'use strict';

/**
 * CSS properties which accept numbers but are not in units of "px".
 */
var isUnitlessNumber = {
  boxFlex: true,
  boxFlexGroup: true,
  columnCount: true,
  flex: true,
  flexGrow: true,
  flexPositive: true,
  flexShrink: true,
  flexNegative: true,
  fontWeight: true,
  lineClamp: true,
  lineHeight: true,
  opacity: true,
  order: true,
  orphans: true,
  widows: true,
  zIndex: true,
  zoom: true,

  // SVG-related properties
  fillOpacity: true,
  strokeDashoffset: true,
  strokeOpacity: true,
  strokeWidth: true
};

/**
 * @param {string} prefix vendor-specific prefix, eg: Webkit
 * @param {string} key style name, eg: transitionDuration
 * @return {string} style name prefixed with `prefix`, properly camelCased, eg:
 * WebkitTransitionDuration
 */
function prefixKey(prefix, key) {
  return prefix + key.charAt(0).toUpperCase() + key.substring(1);
}

/**
 * Support style names that may come passed in prefixed by adding permutations
 * of vendor prefixes.
 */
var prefixes = ['Webkit', 'ms', 'Moz', 'O'];

// Using Object.keys here, or else the vanilla for-in loop makes IE8 go into an
// infinite loop, because it iterates over the newly added props too.
Object.keys(isUnitlessNumber).forEach(function(prop) {
  prefixes.forEach(function(prefix) {
    isUnitlessNumber[prefixKey(prefix, prop)] = isUnitlessNumber[prop];
  });
});

/**
 * Most style properties can be unset by doing .style[prop] = '' but IE8
 * doesn't like doing that with shorthand properties so for the properties that
 * IE8 breaks on, which are listed here, we instead unset each of the
 * individual properties. See http://bugs.jquery.com/ticket/12385.
 * The 4-value 'clock' properties like margin, padding, border-width seem to
 * behave without any problems. Curiously, list-style works too without any
 * special prodding.
 */
var shorthandPropertyExpansions = {
  background: {
    backgroundImage: true,
    backgroundPosition: true,
    backgroundRepeat: true,
    backgroundColor: true
  },
  border: {
    borderWidth: true,
    borderStyle: true,
    borderColor: true
  },
  borderBottom: {
    borderBottomWidth: true,
    borderBottomStyle: true,
    borderBottomColor: true
  },
  borderLeft: {
    borderLeftWidth: true,
    borderLeftStyle: true,
    borderLeftColor: true
  },
  borderRight: {
    borderRightWidth: true,
    borderRightStyle: true,
    borderRightColor: true
  },
  borderTop: {
    borderTopWidth: true,
    borderTopStyle: true,
    borderTopColor: true
  },
  font: {
    fontStyle: true,
    fontVariant: true,
    fontWeight: true,
    fontSize: true,
    lineHeight: true,
    fontFamily: true
  }
};

var CSSProperty = {
  isUnitlessNumber: isUnitlessNumber,
  shorthandPropertyExpansions: shorthandPropertyExpansions
};

module.exports = CSSProperty;

},{}],9:[function(require,module,exports){
(function (process){
/**
 * Copyright 2013-2015, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule CSSPropertyOperations
 * @typechecks static-only
 */

'use strict';

var CSSProperty = require("./CSSProperty");
var ExecutionEnvironment = require("./ExecutionEnvironment");

var camelizeStyleName = require("./camelizeStyleName");
var dangerousStyleValue = require("./dangerousStyleValue");
var hyphenateStyleName = require("./hyphenateStyleName");
var memoizeStringOnly = require("./memoizeStringOnly");
var warning = require("./warning");

var processStyleName = memoizeStringOnly(function(styleName) {
  return hyphenateStyleName(styleName);
});

var styleFloatAccessor = 'cssFloat';
if (ExecutionEnvironment.canUseDOM) {
  // IE8 only supports accessing cssFloat (standard) as styleFloat
  if (document.documentElement.style.cssFloat === undefined) {
    styleFloatAccessor = 'styleFloat';
  }
}

if ("production" !== process.env.NODE_ENV) {
  // 'msTransform' is correct, but the other prefixes should be capitalized
  var badVendoredStyleNamePattern = /^(?:webkit|moz|o)[A-Z]/;

  // style values shouldn't contain a semicolon
  var badStyleValueWithSemicolonPattern = /;\s*$/;

  var warnedStyleNames = {};
  var warnedStyleValues = {};

  var warnHyphenatedStyleName = function(name) {
    if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
      return;
    }

    warnedStyleNames[name] = true;
    ("production" !== process.env.NODE_ENV ? warning(
      false,
      'Unsupported style property %s. Did you mean %s?',
      name,
      camelizeStyleName(name)
    ) : null);
  };

  var warnBadVendoredStyleName = function(name) {
    if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
      return;
    }

    warnedStyleNames[name] = true;
    ("production" !== process.env.NODE_ENV ? warning(
      false,
      'Unsupported vendor-prefixed style property %s. Did you mean %s?',
      name,
      name.charAt(0).toUpperCase() + name.slice(1)
    ) : null);
  };

  var warnStyleValueWithSemicolon = function(name, value) {
    if (warnedStyleValues.hasOwnProperty(value) && warnedStyleValues[value]) {
      return;
    }

    warnedStyleValues[value] = true;
    ("production" !== process.env.NODE_ENV ? warning(
      false,
      'Style property values shouldn\'t contain a semicolon. ' +
      'Try "%s: %s" instead.',
      name,
      value.replace(badStyleValueWithSemicolonPattern, '')
    ) : null);
  };

  /**
   * @param {string} name
   * @param {*} value
   */
  var warnValidStyle = function(name, value) {
    if (name.indexOf('-') > -1) {
      warnHyphenatedStyleName(name);
    } else if (badVendoredStyleNamePattern.test(name)) {
      warnBadVendoredStyleName(name);
    } else if (badStyleValueWithSemicolonPattern.test(value)) {
      warnStyleValueWithSemicolon(name, value);
    }
  };
}

/**
 * Operations for dealing with CSS properties.
 */
var CSSPropertyOperations = {

  /**
   * Serializes a mapping of style properties for use as inline styles:
   *
   *   > createMarkupForStyles({width: '200px', height: 0})
   *   "width:200px;height:0;"
   *
   * Undefined values are ignored so that declarative programming is easier.
   * The result should be HTML-escaped before insertion into the DOM.
   *
   * @param {object} styles
   * @return {?string}
   */
  createMarkupForStyles: function(styles) {
    var serialized = '';
    for (var styleName in styles) {
      if (!styles.hasOwnProperty(styleName)) {
        continue;
      }
      var styleValue = styles[styleName];
      if ("production" !== process.env.NODE_ENV) {
        warnValidStyle(styleName, styleValue);
      }
      if (styleValue != null) {
        serialized += processStyleName(styleName) + ':';
        serialized += dangerousStyleValue(styleName, styleValue) + ';';
      }
    }
    return serialized || null;
  },

  /**
   * Sets the value for multiple styles on a node.  If a value is specified as
   * '' (empty string), the corresponding style property will be unset.
   *
   * @param {DOMElement} node
   * @param {object} styles
   */
  setValueForStyles: function(node, styles) {
    var style = node.style;
    for (var styleName in styles) {
      if (!styles.hasOwnProperty(styleName)) {
        continue;
      }
      if ("production" !== process.env.NODE_ENV) {
        warnValidStyle(styleName, styles[styleName]);
      }
      var styleValue = dangerousStyleValue(styleName, styles[styleName]);
      if (styleName === 'float') {
        styleName = styleFloatAccessor;
      }
      if (styleValue) {
        style[styleName] = styleValue;
      } else {
        var expansion = CSSProperty.shorthandPropertyExpansions[styleName];
        if (expansion) {
          // Shorthand property that IE8 won't like unsetting, so unset each
          // component to placate it
          for (var individualStyleName in expansion) {
            style[individualStyleName] = '';
          }
        } else {
          style[styleName] = '';
        }
      }
    }
  }

};

module.exports = CSSPropertyOperations;

}).call(this,require('_process'))

},{"./CSSProperty":8,"./ExecutionEnvironment":25,"./camelizeStyleName":113,"./dangerousStyleValue":118,"./hyphenateStyleName":138,"./memoizeStringOnly":148,"./warning":159,"_process":4}],10:[function(require,module,exports){
(function (process){
/**
 * Copyright 2013-2015, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule CallbackQueue
 */

'use strict';

var PooledClass = require("./PooledClass");

var assign = require("./Object.assign");
var invariant = require("./invariant");

/**
 * A specialized pseudo-event module to help keep track of components waiting to
 * be notified when their DOM representations are available for use.
 *
 * This implements `PooledClass`, so you should never need to instantiate this.
 * Instead, use `CallbackQueue.getPooled()`.
 *
 * @class ReactMountReady
 * @implements PooledClass
 * @internal
 */
function CallbackQueue() {
  this._callbacks = null;
  this._contexts = null;
}

assign(CallbackQueue.prototype, {

  /**
   * Enqueues a callback to be invoked when `notifyAll` is invoked.
   *
   * @param {function} callback Invoked when `notifyAll` is invoked.
   * @param {?object} context Context to call `callback` with.
   * @internal
   */
  enqueue: function(callback, context) {
    this._callbacks = this._callbacks || [];
    this._contexts = this._contexts || [];
    this._callbacks.push(callback);
    this._contexts.push(context);
  },

  /**
   * Invokes all enqueued callbacks and clears the queue. This is invoked after
   * the DOM representation of a component has been created or updated.
   *
   * @internal
   */
  notifyAll: function() {
    var callbacks = this._callbacks;
    var contexts = this._contexts;
    if (callbacks) {
      ("production" !== process.env.NODE_ENV ? invariant(
        callbacks.length === contexts.length,
        'Mismatched list of contexts in callback queue'
      ) : invariant(callbacks.length === contexts.length));
      this._callbacks = null;
      this._contexts = null;
      for (var i = 0, l = callbacks.length; i < l; i++) {
        callbacks[i].call(contexts[i]);
      }
      callbacks.length = 0;
      contexts.length = 0;
    }
  },

  /**
   * Resets the internal queue.
   *
   * @internal
   */
  reset: function() {
    this._callbacks = null;
    this._contexts = null;
  },

  /**
   * `PooledClass` looks for this.
   */
  destructor: function() {
    this.reset();
  }

});

PooledClass.addPoolingTo(CallbackQueue);

module.exports = CallbackQueue;

}).call(this,require('_process'))

},{"./Object.assign":31,"./PooledClass":32,"./invariant":140,"_process":4}],11:[function(require,module,exports){
/**
 * Copyright 2013-2015, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule ChangeEventPlugin
 */

'use strict';

var EventConstants = require("./EventConstants");
var EventPluginHub = require("./EventPluginHub");
var EventPropagators = require("./EventPropagators");
var ExecutionEnvironment = require("./ExecutionEnvironment");
var ReactUpdates = require("./ReactUpdates");
var SyntheticEvent = require("./SyntheticEvent");

var isEventSupported = require("./isEventSupported");
var isTextInputElement = require("./isTextInputElement");
var keyOf = require("./keyOf");

var topLevelTypes = EventConstants.topLevelTypes;

var eventTypes = {
  change: {
    phasedRegistrationNames: {
      bubbled: keyOf({onChange: null}),
      captured: keyOf({onChangeCapture: null})
    },
    dependencies: [
      topLevelTypes.topBlur,
      topLevelTypes.topChange,
      topLevelTypes.topClick,
      topLevelTypes.topFocus,
      topLevelTypes.topInput,
      topLevelTypes.topKeyDown,
      topLevelTypes.topKeyUp,
      topLevelTypes.topSelectionChange
    ]
  }
};

/**
 * For IE shims
 */
var activeElement = null;
var activeElementID = null;
var activeElementValue = null;
var activeElementValueProp = null;

/**
 * SECTION: handle `change` event
 */
function shouldUseChangeEvent(elem) {
  return (
    elem.nodeName === 'SELECT' ||
    (elem.nodeName === 'INPUT' && elem.type === 'file')
  );
}

var doesChangeEventBubble = false;
if (ExecutionEnvironment.canUseDOM) {
  // See `handleChange` comment below
  doesChangeEventBubble = isEventSupported('change') && (
    (!('documentMode' in document) || document.documentMode > 8)
  );
}

function manualDispatchChangeEvent(nativeEvent) {
  var event = SyntheticEvent.getPooled(
    eventTypes.change,
    activeElementID,
    nativeEvent
  );
  EventPropagators.accumulateTwoPhaseDispatches(event);

  // If change and propertychange bubbled, we'd just bind to it like all the
  // other events and have it go through ReactBrowserEventEmitter. Since it
  // doesn't, we manually listen for the events and so we have to enqueue and
  // process the abstract event manually.
  //
  // Batching is necessary here in order to ensure that all event handlers run
  // before the next rerender (including event handlers attached to ancestor
  // elements instead of directly on the input). Without this, controlled
  // components don't work properly in conjunction with event bubbling because
  // the component is rerendered and the value reverted before all the event
  // handlers can run. See https://github.com/facebook/react/issues/708.
  ReactUpdates.batchedUpdates(runEventInBatch, event);
}

function runEventInBatch(event) {
  EventPluginHub.enqueueEvents(event);
  EventPluginHub.processEventQueue();
}

function startWatchingForChangeEventIE8(target, targetID) {
  activeElement = target;
  activeElementID = targetID;
  activeElement.attachEvent('onchange', manualDispatchChangeEvent);
}

function stopWatchingForChangeEventIE8() {
  if (!activeElement) {
    return;
  }
  activeElement.detachEvent('onchange', manualDispatchChangeEvent);
  activeElement = null;
  activeElementID = null;
}

function getTargetIDForChangeEvent(
    topLevelType,
    topLevelTarget,
    topLevelTargetID) {
  if (topLevelType === topLevelTypes.topChange) {
    return topLevelTargetID;
  }
}
function handleEventsForChangeEventIE8(
    topLevelType,
    topLevelTarget,
    topLevelTargetID) {
  if (topLevelType === topLevelTypes.topFocus) {
    // stopWatching() should be a noop here but we call it just in case we
    // missed a blur event somehow.
    stopWatchingForChangeEventIE8();
    startWatchingForChangeEventIE8(topLevelTarget, topLevelTargetID);
  } else if (topLevelType === topLevelTypes.topBlur) {
    stopWatchingForChangeEventIE8();
  }
}


/**
 * SECTION: handle `input` event
 */
var isInputEventSupported = false;
if (ExecutionEnvironment.canUseDOM) {
  // IE9 claims to support the input event but fails to trigger it when
  // deleting text, so we ignore its input events
  isInputEventSupported = isEventSupported('input') && (
    (!('documentMode' in document) || document.documentMode > 9)
  );
}

/**
 * (For old IE.) Replacement getter/setter for the `value` property that gets
 * set on the active element.
 */
var newValueProp =  {
  get: function() {
    return activeElementValueProp.get.call(this);
  },
  set: function(val) {
    // Cast to a string so we can do equality checks.
    activeElementValue = '' + val;
    activeElementValueProp.set.call(this, val);
  }
};

/**
 * (For old IE.) Starts tracking propertychange events on the passed-in element
 * and override the value property so that we can distinguish user events from
 * value changes in JS.
 */
function startWatchingForValueChange(target, targetID) {
  activeElement = target;
  activeElementID = targetID;
  activeElementValue = target.value;
  activeElementValueProp = Object.getOwnPropertyDescriptor(
    target.constructor.prototype,
    'value'
  );

  Object.defineProperty(activeElement, 'value', newValueProp);
  activeElement.attachEvent('onpropertychange', handlePropertyChange);
}

/**
 * (For old IE.) Removes the event listeners from the currently-tracked element,
 * if any exists.
 */
function stopWatchingForValueChange() {
  if (!activeElement) {
    return;
  }

  // delete restores the original property definition
  delete activeElement.value;
  activeElement.detachEvent('onpropertychange', handlePropertyChange);

  activeElement = null;
  activeElementID = null;
  activeElementValue = null;
  activeElementValueProp = null;
}

/**
 * (For old IE.) Handles a propertychange event, sending a `change` event if
 * the value of the active element has changed.
 */
function handlePropertyChange(nativeEvent) {
  if (nativeEvent.propertyName !== 'value') {
    return;
  }
  var value = nativeEvent.srcElement.value;
  if (value === activeElementValue) {
    return;
  }
  activeElementValue = value;

  manualDispatchChangeEvent(nativeEvent);
}

/**
 * If a `change` event should be fired, returns the target's ID.
 */
function getTargetIDForInputEvent(
    topLevelType,
    topLevelTarget,
    topLevelTargetID) {
  if (topLevelType === topLevelTypes.topInput) {
    // In modern browsers (i.e., not IE8 or IE9), the input event is exactly
    // what we want so fall through here and trigger an abstract event
    return topLevelTargetID;
  }
}

// For IE8 and IE9.
function handleEventsForInputEventIE(
    topLevelType,
    topLevelTarget,
    topLevelTargetID) {
  if (topLevelType === topLevelTypes.topFocus) {
    // In IE8, we can capture almost all .value changes by adding a
    // propertychange handler and looking for events with propertyName
    // equal to 'value'
    // In IE9, propertychange fires for most input events but is buggy and
    // doesn't fire when text is deleted, but conveniently, selectionchange
    // appears to fire in all of the remaining cases so we catch those and
    // forward the event if the value has changed
    // In either case, we don't want to call the event handler if the value
    // is changed from JS so we redefine a setter for `.value` that updates
    // our activeElementValue variable, allowing us to ignore those changes
    //
    // stopWatching() should be a noop here but we call it just in case we
    // missed a blur event somehow.
    stopWatchingForValueChange();
    startWatchingForValueChange(topLevelTarget, topLevelTargetID);
  } else if (topLevelType === topLevelTypes.topBlur) {
    stopWatchingForValueChange();
  }
}

// For IE8 and IE9.
function getTargetIDForInputEventIE(
    topLevelType,
    topLevelTarget,
    topLevelTargetID) {
  if (topLevelType === topLevelTypes.topSelectionChange ||
      topLevelType === topLevelTypes.topKeyUp ||
      topLevelType === topLevelTypes.topKeyDown) {
    // On the selectionchange event, the target is just document which isn't
    // helpful for us so just check activeElement instead.
    //
    // 99% of the time, keydown and keyup aren't necessary. IE8 fails to fire
    // propertychange on the first input event after setting `value` from a
    // script and fires only keydown, keypress, keyup. Catching keyup usually
    // gets it and catching keydown lets us fire an event for the first
    // keystroke if user does a key repeat (it'll be a little delayed: right
    // before the second keystroke). Other input methods (e.g., paste) seem to
    // fire selectionchange normally.
    if (activeElement && activeElement.value !== activeElementValue) {
      activeElementValue = activeElement.value;
      return activeElementID;
    }
  }
}


/**
 * SECTION: handle `click` event
 */
function shouldUseClickEvent(elem) {
  // Use the `click` event to detect changes to checkbox and radio inputs.
  // This approach works across all browsers, whereas `change` does not fire
  // until `blur` in IE8.
  return (
    elem.nodeName === 'INPUT' &&
    (elem.type === 'checkbox' || elem.type === 'radio')
  );
}

function getTargetIDForClickEvent(
    topLevelType,
    topLevelTarget,
    topLevelTargetID) {
  if (topLevelType === topLevelTypes.topClick) {
    return topLevelTargetID;
  }
}

/**
 * This plugin creates an `onChange` event that normalizes change events
 * across form elements. This event fires at a time when it's possible to
 * change the element's value without seeing a flicker.
 *
 * Supported elements are:
 * - input (see `isTextInputElement`)
 * - textarea
 * - select
 */
var ChangeEventPlugin = {

  eventTypes: eventTypes,

  /**
   * @param {string} topLevelType Record from `EventConstants`.
   * @param {DOMEventTarget} topLevelTarget The listening component root node.
   * @param {string} topLevelTargetID ID of `topLevelTarget`.
   * @param {object} nativeEvent Native browser event.
   * @return {*} An accumulation of synthetic events.
   * @see {EventPluginHub.extractEvents}
   */
  extractEvents: function(
      topLevelType,
      topLevelTarget,
      topLevelTargetID,
      nativeEvent) {

    var getTargetIDFunc, handleEventFunc;
    if (shouldUseChangeEvent(topLevelTarget)) {
      if (doesChangeEventBubble) {
        getTargetIDFunc = getTargetIDForChangeEvent;
      } else {
        handleEventFunc = handleEventsForChangeEventIE8;
      }
    } else if (isTextInputElement(topLevelTarget)) {
      if (isInputEventSupported) {
        getTargetIDFunc = getTargetIDForInputEvent;
      } else {
        getTargetIDFunc = getTargetIDForInputEventIE;
        handleEventFunc = handleEventsForInputEventIE;
      }
    } else if (shouldUseClickEvent(topLevelTarget)) {
      getTargetIDFunc = getTargetIDForClick