react-viewport/demo/demo.js

A react component for handling different viewport widths and heights with fallbacks

(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";

var _interopRequire = function (obj) {
  return obj && (obj["default"] || obj);
};

var React = _interopRequire(require("react"));

var assign = _interopRequire(require("react/lib/Object.assign"));

var ViewportContainer = React.createClass({
  displayName: "ViewportContainer",


  getInitialState: function getInitialState() {
    return {
      viewportHeight: null,
      viewportWidth: null };
  },

  getDefaultProps: function getDefaultProps() {
    return {
      style: {},

      // Default to detecting for Modernizr support
      browserSupportsVh: typeof document === "undefined" || rootElementHasClass("cssvhunit"),
      browserSupportsVw: typeof document === "undefined" || rootElementHasClass("cssvwunit") };
  },

  componentDidMount: function componentDidMount() {
    if (!this.props.browserSupportsVh || !this.props.browserSupportsVw) {
      this.getWindowDimensions();
      window.addEventListener("resize", this.getWindowDimensions);
    }
  },

  componentWillUnmount: function componentWillUnmount() {
    window.removeEventListener("resize", this.getWindowDimensions);
  },

  getWindowDimensions: function getWindowDimensions() {
    this.setState({
      viewportHeight: window.innerHeight,
      viewportWidth: window.innerWidth });
  },

  render: function render() {
    var _this = this;


    var style = Object.keys(this.props.style).reduce(function (result, prop) {
      var value = _this.props.style[prop];

      if (isVhUnit(value)) {
        if (_this.props.browserSupportsVh) {
          result[prop] = value;
        } else {
          result[prop] = "" + _this.state.viewportHeight * removeViewportUnit(value) / 100 + "px";
        }
      } else if (isVwUnit(value)) {
        if (_this.props.browserSupportsVw) {
          result[prop] = value;
        } else {
          result[prop] = "" + _this.state.viewportWidth * removeViewportUnit(value) / 100 + "px";
        }
      }

      return result;
    }, {});

    style = assign({}, this.props.style, style);

    return React.createElement("div", React.__spread({}, this.props, {
      style: style
    }));
  }
});

function isVhUnit(value) {
  return typeof value === "string" && stringEndsWith(value, "vh");
}

function isVwUnit(value) {
  return typeof value === "string" && stringEndsWith(value, "vw");
}

function removeViewportUnit(value) {
  return value.slice(0, -2);
}

function stringEndsWith(string, suffix) {
  return string.indexOf(suffix, string.length - suffix.length) !== -1;
}

function elementHasClass(el, className) {
  return (" " + el.className + " ").indexOf(" " + className + " ") > -1;
}

function rootElementHasClass(className) {
  return typeof document !== "undefined" && elementHasClass(document.documentElement, className);
}

module.exports = ViewportContainer;
},{"react":149,"react/lib/Object.assign":29}],2:[function(require,module,exports){
(function (global){
"use strict";

var _interopRequire = function (obj) {
  return obj && (obj["default"] || obj);
};

var React = _interopRequire(require("react"));

var ViewportContainer = _interopRequire(require("./ViewportContainer"));

global.React = React;

React.render(React.createElement(
  ViewportContainer,
  {
    style: {
      backgroundColor: "red",
      minHeight: "90vh" }
  },
  "Hello world"
), document.getElementById("demo"));
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./ViewportContainer":1,"react":149}],3:[function(require,module,exports){
// shim for using process in browser

var process = module.exports = {};
var queue = [];
var draining = false;

function drainQueue() {
    if (draining) {
        return;
    }
    draining = true;
    var currentQueue;
    var len = queue.length;
    while(len) {
        currentQueue = queue;
        queue = [];
        var i = -1;
        while (++i < len) {
            currentQueue[i]();
        }
        len = queue.length;
    }
    draining = false;
}
process.nextTick = function (fun) {
    queue.push(fun);
    if (!draining) {
        setTimeout(drainQueue, 0);
    }
};

process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues

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; };

},{}],4:[function(require,module,exports){
/**
 * Copyright 2013-2014, 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":114}],5:[function(require,module,exports){
/**
 * Copyright 2013 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 SyntheticInputEvent = require("./SyntheticInputEvent");

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

var canUseTextInputEvent = (
  ExecutionEnvironment.canUseDOM &&
  'TextEvent' in window &&
  !('documentMode' in document || isPresto())
);

/**
 * 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
    ]
  }
};

// Track characters inserted via keypress and composition events.
var fallbackChars = null;

// 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)
  );
}

/**
 * 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.
 */
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) {

    var chars;

    if (canUseTextInputEvent) {
      switch (topLevelType) {
        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;
          }

          hasSpaceKeypress = true;
          chars = SPACEBAR_CHAR;
          break;

        case topLevelTypes.topTextInput:
          // Record the characters to be added to the DOM.
          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;
          }

          // Otherwise, carry on.
          break;

        default:
          // For other native event types, do nothing.
          return;
      }
    } else {
      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.
          fallbackChars = null;
          break;
        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)) {
            fallbackChars = String.fromCharCode(nativeEvent.which);
          }
          break;
        case topLevelTypes.topCompositionEnd:
          fallbackChars = nativeEvent.data;
          break;
      }

      // If no changes have occurred to the fallback string, no relevant
      // event has fired and we're done.
      if (fallbackChars === null) {
        return;
      }

      chars = fallbackChars;
    }

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

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

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

module.exports = BeforeInputEventPlugin;

},{"./EventConstants":18,"./EventPropagators":23,"./ExecutionEnvironment":24,"./SyntheticInputEvent":92,"./keyOf":136}],6:[function(require,module,exports){
/**
 * Copyright 2013-2014, 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 = {
  columnCount: true,
  flex: true,
  flexGrow: true,
  flexShrink: true,
  fontWeight: true,
  lineClamp: true,
  lineHeight: true,
  opacity: true,
  order: true,
  orphans: true,
  widows: true,
  zIndex: true,
  zoom: true,

  // SVG-related properties
  fillOpacity: true,
  strokeOpacity: 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;

},{}],7:[function(require,module,exports){
(function (process){
/**
 * Copyright 2013-2014, 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) {
  var warnedStyleNames = {};

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

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

/**
 * 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;
      }
      if ("production" !== process.env.NODE_ENV) {
        if (styleName.indexOf('-') > -1) {
          warnHyphenatedStyleName(styleName);
        }
      }
      var styleValue = styles[styleName];
      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) {
        if (styleName.indexOf('-') > -1) {
          warnHyphenatedStyleName(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":6,"./ExecutionEnvironment":24,"./camelizeStyleName":103,"./dangerousStyleValue":108,"./hyphenateStyleName":127,"./memoizeStringOnly":138,"./warning":148,"_process":3}],8:[function(require,module,exports){
(function (process){
/**
 * Copyright 2013-2014, 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":29,"./PooledClass":30,"./invariant":129,"_process":3}],9:[function(require,module,exports){
/**
 * Copyright 2013-2014, 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 = getTargetIDForClickEvent;
    }

    if (getTargetIDFunc) {
      var targetID = getTargetIDFunc(
        topLevelType,
        topLevelTarget,
        topLevelTargetID
      );
      if (targetID) {
        var event = SyntheticEvent.getPooled(
          eventTypes.change,
          targetID,
          nativeEvent
        );
        EventPropagators.accumulateTwoPhaseDispatches(event);
        return event;
      }
    }

    if (handleEventFunc) {
      handleEventFunc(
        topLevelType,
        topLevelTarget,
        topLevelTargetID
      );
    }
  }

};

module.exports = ChangeEventPlugin;

},{"./EventConstants":18,"./EventPluginHub":20,"./EventPropagators":23,"./ExecutionEnvironment":24,"./ReactUpdates":82,"./SyntheticEvent":90,"./isEventSupported":130,"./isTextInputElement":132,"./keyOf":136}],10:[function(require,module,exports){
/**
 * Copyright 2013-2014, 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 ClientReactRootIndex
 * @typechecks
 */

"use strict";

var nextReactRootIndex = 0;

var ClientReactRootIndex = {
  createReactRootIndex: function() {
    return nextReactRootIndex++;
  }
};

module.exports = ClientReactRootIndex;

},{}],11:[function(require,module,exports){
/**
 * Copyright 2013-2014, 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 CompositionEventPlugin
 * @typechecks static-only
 */

"use strict";

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

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

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

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

// In IE9+, we have access to composition events, but the data supplied
// by the native compositionend event may be incorrect. In Korean, for example,
// the compositionend event contains only one character regardless of
// how many characters have been composed since compositionstart.
// We therefore use the fallback data while still using the native
// events as triggers.
var useFallbackData = (
  !useCompositionEvent ||
  (
    'documentMode' in document &&
    document.documentMode > 8 &&
    document.documentMode <= 11
  )
);

var topLevelTypes = EventConstants.topLevelTypes;
var currentComposition = null;

// Events and their corresponding property names.
var eventTypes = {
  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
    ]
  }
};

/**
 * 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 isFallbackStart(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 isFallbackEnd(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;
  }
}

/**
 * Helper class stores information about selection and document state
 * so we can figure out what changed at a later date.
 *
 * @param {DOMEventTarget} root
 */
function FallbackCompositionState(root) {
  this.root = root;
  this.startSelection = ReactInputSelection.getSelection(root);
  this.startValue = this.getText();
}

/**
 * Get current text of input.
 *
 * @return {string}
 */
FallbackCompositionState.prototype.getText = function() {
  return this.root.value || this.root[getTextContentAccessor()];
};

/**
 * Text that has changed since the start of composition.
 *
 * @return {string}
 */
FallbackCompositionState.prototype.getData = function() {
  var endValue = this.getText();
  var prefixLength = this.startSelection.start;
  var suffixLength = this.startValue.length - this.startSelection.end;

  return endValue.substr(
    prefixLength,
    endValue.length - suffixLength - prefixLength
  );
};

/**
 * This plugin creates `onCompositionStart`, `onCompositionUpdate` and
 * `onCompositionEnd` events on inputs, textareas and contentEditable
 * nodes.
 */
var CompositionEventPlugin = {

  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 eventType;
    var data;

    if (useCompositionEvent) {
      eventType = getCompositionEventType(topLevelType);
    } else if (!currentComposition) {
      if (isFallbackStart(topLevelType, nativeEvent)) {
        eventType = eventTypes.compositionStart;
      }
    } else if (isFallbackEnd(topLevelType, nativeEvent)) {
      eventType = eventTypes.compositionEnd;
    }

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

    if (eventType) {
      var event = SyntheticCompositionEvent.getPooled(
        eventType,
        topLevelTargetID,
        nativeEvent
      );
      if (data) {
        // Inject data generated from fallback path into the synthetic event.
        // This matches the property of native CompositionEventInterface.
        event.data = data;
      }
      EventPropagators.accumulateTwoPhaseDispatches(event);
      return event;
    }
  }
};

module.exports = CompositionEventPlugin;

},{"./EventConstants":18,"./EventPropagators":23,"./ExecutionEnvironment":24,"./ReactInputSelection":62,"./SyntheticCompositionEvent":88,"./getTextContentAccessor":124,"./keyOf":136}],12:[function(require,module,exports){
(function (process){
/**
 * Copyright 2013-2014, 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 DOMChildrenOperations
 * @typechecks static-only
 */

"use strict";

var Danger = require("./Danger");
var ReactMultiChildUpdateTypes = require("./ReactMultiChildUpdateTypes");

var getTextContentAccessor = require("./getTextContentAccessor");
var invariant = require("./invariant");

/**
 * The DOM property to use when setting text content.
 *
 * @type {string}
 * @private
 */
var textContentAccessor = getTextContentAccessor();

/**
 * Inserts `childNode` as a child of `parentNode` at the `index`.
 *
 * @param {DOMElement} parentNode Parent node in which to insert.
 * @param {DOMElement} childNode Child node to insert.
 * @param {number} index Index at which to insert the child.
 * @internal
 */
function insertChildAt(parentNode, childNode, index) {
  // By exploiting arrays returning `undefined` for an undefined index, we can
  // rely exclusively on `insertBefore(node, null)` instead of also using
  // `appendChild(node)`. However, using `undefined` is not allowed by all
  // browsers so we must replace it with `null`.
  parentNode.insertBefore(
    childNode,
    parentNode.childNodes[index] || null
  );
}

var updateTextContent;
if (textContentAccessor === 'textContent') {
  /**
   * Sets the text content of `node` to `text`.
   *
   * @param {DOMElement} node Node to change
   * @param {string} text New text content
   */
  updateTextContent = function(node, text) {
    node.textContent = text;
  };
} else {
  /**
   * Sets the text content of `node` to `text`.
   *
   * @param {DOMElement} node Node to change
   * @param {string} text New text content
   */
  updateTextContent = function(node, text) {
    // In order to preserve newlines correctly, we can't use .innerText to set
    // the contents (see #1080), so we empty the element then append a text node
    while (node.firstChild) {
      node.removeChild(node.firstChild);
    }
    if (text) {
      var doc = node.ownerDocument || document;
      node.appendChild(doc.createTextNode(text));
    }
  };
}

/**
 * Operations for updating with DOM children.
 */
var DOMChildrenOperations = {

  dangerouslyReplaceNodeWithMarkup: Danger.dangerouslyReplaceNodeWithMarkup,

  updateTextContent: updateTextContent,

  /**
   * Updates a component's children by processing a series of updates. The
   * update configurations are each expected to have a `parentNode` property.
   *
   * @param {array<object>} updates List of update configurations.
   * @param {array<string>} markupList List of markup strings.
   * @internal
   */
  processUpdates: function(updates, markupList) {
    var update;
    // Mapping from parent IDs to initial child orderings.
    var initialChildren = null;
    // List of children that will be moved or removed.
    var updatedChildren = null;

    for (var i = 0; update = updates[i]; i++) {
      if (update.type === ReactMultiChildUpdateTypes.MOVE_EXISTING ||
          update.type === ReactMultiChildUpdateTypes.REMOVE_NODE) {
        var updatedIndex = update.fromIndex;
        var updatedChild = update.parentNode.childNodes[updatedIndex];
        var parentID = update.parentID;

        ("production" !== process.env.NODE_ENV ? invariant(
          updatedChild,
          'processUpdates(): Unable to find child %s of element. This ' +
          'probably means the DOM was unexpectedly mutated (e.g., by the ' +
          'browser), usually due to forgetting a <tbody> when using tables, ' +
          'nesting tags like <form>, <p>, or <a>, or using non-SVG elements '+
          'in an <svg> parent. Try inspecting the child nodes of the element ' +
          'with React ID `%s`.',
          updatedIndex,
          parentID
        ) : invariant(updatedChild));

        initialChildren = initialChildren || {};
        initialChildren[parentID] = initialChildren[parentID] || [];
        initialChildren[parentID][updatedIndex] = updatedChild;

        updatedChildren = updatedChildren || [];
        updatedChildren.push(updatedChild);
      }
    }

    var renderedMarkup = Danger.dangerouslyRenderMarkup(markupList);

    // Remove updated children first so that `toIndex` is consistent.
    if (updatedChildren) {
      for (var j = 0; j < updatedChildren.length; j++) {
        updatedChildren[j].parentNode.removeChild(updatedChildren[j]);
      }
    }

    for (var k = 0; update = updates[k]; k++) {
      switch (update.type) {
        case ReactMultiChildUpdateTypes.INSERT_MARKUP:
          insertChildAt(
            update.parentNode,
            renderedMarkup[update.markupIndex],
            update.toIndex
          );
          break;
        case ReactMultiChildUpdateTypes.MOVE_EXISTING:
          insertChildAt(
            update.parentNode,
            initialChildren[update.parentID][update.fromIndex],
            update.toIndex
          );
          break;
        case ReactMultiChildUpdateTypes.TEXT_CONTENT:
          updateTextContent(
            update.parentNode,
            update.textContent
          );
          break;
        case ReactMultiChildUpdateTypes.REMOVE_NODE:
          // Already removed by the for-loop above.
          break;
      }
    }
  }

};

module.exports = DOMChildrenOperations;

}).call(this,require('_process'))
},{"./Danger":15,"./ReactMultiChildUpdateTypes":68,"./getTextContentAccessor":124,"./invariant":129,"_process":3}],13:[function(require,module,exports){
(function (process){
/**
 * Copyright 2013-2014, 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 DOMProperty
 * @typechecks static-only
 */

/*jslint bitwise: true */

"use strict";

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

function checkMask(value, bitmask) {
  return (value & bitmask) === bitmask;
}

var DOMPropertyInjection = {
  /**
   * Mapping from normalized, camelcased property names to a configuration that
   * specifies how the associated DOM property should be accessed or rendered.
   */
  MUST_USE_ATTRIBUTE: 0x1,
  MUST_USE_PROPERTY: 0x2,
  HAS_SIDE_EFFECTS: 0x4,
  HAS_BOOLEAN_VALUE: 0x8,
  HAS_NUMERIC_VALUE: 0x10,
  HAS_POSITIVE_NUMERIC_VALUE: 0x20 | 0x10,
  HAS_OVERLOADED_BOOLEAN_VALUE: 0x40,

  /**
   * Inject some specialized knowledge about the DOM. This takes a config object
   * with the following properties:
   *
   * isCustomAttribute: function that given an attribute name will return true
   * if it c