antd/dist/antd.js

An enterprise-class UI design language and React-based implementation

/*!
 * 
 * antd v3.0.2
 * 
 * Copyright 2015-present, Alipay, Inc.
 * All rights reserved.
 *       
 */
(function webpackUniversalModuleDefinition(root, factory) {
	if(typeof exports === 'object' && typeof module === 'object')
		module.exports = factory(require("react"), require("react-dom"), require("moment"));
	else if(typeof define === 'function' && define.amd)
		define(["react", "react-dom", "moment"], factory);
	else if(typeof exports === 'object')
		exports["antd"] = factory(require("react"), require("react-dom"), require("moment"));
	else
		root["antd"] = factory(root["React"], root["ReactDOM"], root["moment"]);
})(typeof self !== 'undefined' ? self : this, function(__WEBPACK_EXTERNAL_MODULE_0__, __WEBPACK_EXTERNAL_MODULE_9__, __WEBPACK_EXTERNAL_MODULE_11__) {
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/***/ (function(module, exports) {

module.exports = __WEBPACK_EXTERNAL_MODULE_0__;

/***/ }),
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"use strict";


exports.__esModule = true;

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

exports.default = _assign2.default || function (target) {
  for (var i = 1; i < arguments.length; i++) {
    var source = arguments[i];

    for (var key in source) {
      if (Object.prototype.hasOwnProperty.call(source, key)) {
        target[key] = source[key];
      }
    }
  }

  return target;
};

/***/ }),
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/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

exports.default = function (instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
};

/***/ }),
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/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

var _typeof2 = __webpack_require__(21);

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

exports.default = function (self, call) {
  if (!self) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return call && ((typeof call === "undefined" ? "undefined" : (0, _typeof3.default)(call)) === "object" || typeof call === "function") ? call : self;
};

/***/ }),
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/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

var _setPrototypeOf = __webpack_require__(354);

var _setPrototypeOf2 = _interopRequireDefault(_setPrototypeOf);

var _create = __webpack_require__(358);

var _create2 = _interopRequireDefault(_create);

var _typeof2 = __webpack_require__(21);

var _typeof3 = _interopRequireDefault(_typeof2);

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

exports.default = function (subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === "undefined" ? "undefined" : (0, _typeof3.default)(superClass)));
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};

/***/ }),
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/***/ (function(module, exports, __webpack_require__) {

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

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

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

  // By explicitly using `prop-types` you are opting into new development behavior.
  // http://fb.me/prop-types-in-prod
  var throwOnDirectAccess = true;
  module.exports = __webpack_require__(361)(isValidElement, throwOnDirectAccess);
} else {
  // By explicitly using `prop-types` you are opting into new production behavior.
  // http://fb.me/prop-types-in-prod
  module.exports = require('./factoryWithThrowingShims')();
}


/***/ }),
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/***/ (function(module, exports, __webpack_require__) {

var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;/*!
  Copyright (c) 2016 Jed Watson.
  Licensed under the MIT License (MIT), see
  http://jedwatson.github.io/classnames
*/
/* global define */

(function () {
	'use strict';

	var hasOwn = {}.hasOwnProperty;

	function classNames () {
		var classes = [];

		for (var i = 0; i < arguments.length; i++) {
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		return classes.join(' ');
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		!(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_RESULT__ = (function () {
			return classNames;
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var _defineProperty = __webpack_require__(177);

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

exports.default = 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;
      (0, _defineProperty2.default)(target, descriptor.key, descriptor);
    }
  }

  return function (Constructor, protoProps, staticProps) {
    if (protoProps) defineProperties(Constructor.prototype, protoProps);
    if (staticProps) defineProperties(Constructor, staticProps);
    return Constructor;
  };
}();

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exports.default = function (obj, key, value) {
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      enumerable: true,
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/***/ (function(module, exports, __webpack_require__) {

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



/**
 * Use invariant() to assert state which your program assumes to be true.
 *
 * Provide sprintf-style format (only %s is supported) and arguments
 * to provide information about what broke and what you were
 * expecting.
 *
 * The invariant message will be stripped in production, but the invariant
 * will remain to ensure logic does not differ in production.
 */

var validateFormat = function validateFormat(format) {};

if (true) {
  validateFormat = function validateFormat(format) {
    if (format === undefined) {
      throw new Error('invariant requires an error message argument');
    }
  };
}

function invariant(condition, format, a, b, c, d, e, f) {
  validateFormat(format);

  if (!condition) {
    var error;
    if (format === undefined) {
      error = new Error('Minified exception occurred; use the non-minified dev environment ' + 'for the full error message and additional helpful warnings.');
    } else {
      var args = [a, b, c, d, e, f];
      var argIndex = 0;
      error = new Error(format.replace(/%s/g, function () {
        return args[argIndex++];
      }));
      error.name = 'Invariant Violation';
    }

    error.framesToPop = 1; // we don't care about invariant's own frame
    throw error;
  }
}

module.exports = invariant;

/***/ }),
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module.exports = __WEBPACK_EXTERNAL_MODULE_11__;

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/***/ (function(module, exports, __webpack_require__) {

"use strict";
/**
 * Copyright (c) 2013-present, 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 EditorState
 * 
 */



var _assign = __webpack_require__(18);

var _extends = _assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var BlockTree = __webpack_require__(285);
var ContentState = __webpack_require__(156);
var EditorBidiService = __webpack_require__(683);
var Immutable = __webpack_require__(14);
var SelectionState = __webpack_require__(74);

var OrderedSet = Immutable.OrderedSet,
    Record = Immutable.Record,
    Stack = Immutable.Stack;


var defaultRecord = {
  allowUndo: true,
  currentContent: null,
  decorator: null,
  directionMap: null,
  forceSelection: false,
  inCompositionMode: false,
  inlineStyleOverride: null,
  lastChangeType: null,
  nativelyRenderedContent: null,
  redoStack: Stack(),
  selection: null,
  treeMap: null,
  undoStack: Stack()
};

var EditorStateRecord = Record(defaultRecord);

var EditorState = function () {
  EditorState.createEmpty = function createEmpty(decorator) {
    return EditorState.createWithContent(ContentState.createFromText(''), decorator);
  };

  EditorState.createWithContent = function createWithContent(contentState, decorator) {
    var firstKey = contentState.getBlockMap().first().getKey();
    return EditorState.create({
      currentContent: contentState,
      undoStack: Stack(),
      redoStack: Stack(),
      decorator: decorator || null,
      selection: SelectionState.createEmpty(firstKey)
    });
  };

  EditorState.create = function create(config) {
    var currentContent = config.currentContent,
        decorator = config.decorator;

    var recordConfig = _extends({}, config, {
      treeMap: generateNewTreeMap(currentContent, decorator),
      directionMap: EditorBidiService.getDirectionMap(currentContent)
    });
    return new EditorState(new EditorStateRecord(recordConfig));
  };

  EditorState.set = function set(editorState, put) {
    var map = editorState.getImmutable().withMutations(function (state) {
      var existingDecorator = state.get('decorator');
      var decorator = existingDecorator;
      if (put.decorator === null) {
        decorator = null;
      } else if (put.decorator) {
        decorator = put.decorator;
      }

      var newContent = put.currentContent || editorState.getCurrentContent();

      if (decorator !== existingDecorator) {
        var treeMap = state.get('treeMap');
        var newTreeMap;
        if (decorator && existingDecorator) {
          newTreeMap = regenerateTreeForNewDecorator(newContent, newContent.getBlockMap(), treeMap, decorator, existingDecorator);
        } else {
          newTreeMap = generateNewTreeMap(newContent, decorator);
        }

        state.merge({
          decorator: decorator,
          treeMap: newTreeMap,
          nativelyRenderedContent: null
        });
        return;
      }

      var existingContent = editorState.getCurrentContent();
      if (newContent !== existingContent) {
        state.set('treeMap', regenerateTreeForNewBlocks(editorState, newContent.getBlockMap(), newContent.getEntityMap(), decorator));
      }

      state.merge(put);
    });

    return new EditorState(map);
  };

  EditorState.prototype.toJS = function toJS() {
    return this.getImmutable().toJS();
  };

  EditorState.prototype.getAllowUndo = function getAllowUndo() {
    return this.getImmutable().get('allowUndo');
  };

  EditorState.prototype.getCurrentContent = function getCurrentContent() {
    return this.getImmutable().get('currentContent');
  };

  EditorState.prototype.getUndoStack = function getUndoStack() {
    return this.getImmutable().get('undoStack');
  };

  EditorState.prototype.getRedoStack = function getRedoStack() {
    return this.getImmutable().get('redoStack');
  };

  EditorState.prototype.getSelection = function getSelection() {
    return this.getImmutable().get('selection');
  };

  EditorState.prototype.getDecorator = function getDecorator() {
    return this.getImmutable().get('decorator');
  };

  EditorState.prototype.isInCompositionMode = function isInCompositionMode() {
    return this.getImmutable().get('inCompositionMode');
  };

  EditorState.prototype.mustForceSelection = function mustForceSelection() {
    return this.getImmutable().get('forceSelection');
  };

  EditorState.prototype.getNativelyRenderedContent = function getNativelyRenderedContent() {
    return this.getImmutable().get('nativelyRenderedContent');
  };

  EditorState.prototype.getLastChangeType = function getLastChangeType() {
    return this.getImmutable().get('lastChangeType');
  };

  /**
   * While editing, the user may apply inline style commands with a collapsed
   * cursor, intending to type text that adopts the specified style. In this
   * case, we track the specified style as an "override" that takes precedence
   * over the inline style of the text adjacent to the cursor.
   *
   * If null, there is no override in place.
   */


  EditorState.prototype.getInlineStyleOverride = function getInlineStyleOverride() {
    return this.getImmutable().get('inlineStyleOverride');
  };

  EditorState.setInlineStyleOverride = function setInlineStyleOverride(editorState, inlineStyleOverride) {
    return EditorState.set(editorState, { inlineStyleOverride: inlineStyleOverride });
  };

  /**
   * Get the appropriate inline style for the editor state. If an
   * override is in place, use it. Otherwise, the current style is
   * based on the location of the selection state.
   */


  EditorState.prototype.getCurrentInlineStyle = function getCurrentInlineStyle() {
    var override = this.getInlineStyleOverride();
    if (override != null) {
      return override;
    }

    var content = this.getCurrentContent();
    var selection = this.getSelection();

    if (selection.isCollapsed()) {
      return getInlineStyleForCollapsedSelection(content, selection);
    }

    return getInlineStyleForNonCollapsedSelection(content, selection);
  };

  EditorState.prototype.getBlockTree = function getBlockTree(blockKey) {
    return this.getImmutable().getIn(['treeMap', blockKey]);
  };

  EditorState.prototype.isSelectionAtStartOfContent = function isSelectionAtStartOfContent() {
    var firstKey = this.getCurrentContent().getBlockMap().first().getKey();
    return this.getSelection().hasEdgeWithin(firstKey, 0, 0);
  };

  EditorState.prototype.isSelectionAtEndOfContent = function isSelectionAtEndOfContent() {
    var content = this.getCurrentContent();
    var blockMap = content.getBlockMap();
    var last = blockMap.last();
    var end = last.getLength();
    return this.getSelection().hasEdgeWithin(last.getKey(), end, end);
  };

  EditorState.prototype.getDirectionMap = function getDirectionMap() {
    return this.getImmutable().get('directionMap');
  };

  /**
   * Incorporate native DOM selection changes into the EditorState. This
   * method can be used when we simply want to accept whatever the DOM
   * has given us to represent selection, and we do not need to re-render
   * the editor.
   *
   * To forcibly move the DOM selection, see `EditorState.forceSelection`.
   */


  EditorState.acceptSelection = function acceptSelection(editorState, selection) {
    return updateSelection(editorState, selection, false);
  };

  /**
   * At times, we need to force the DOM selection to be where we
   * need it to be. This can occur when the anchor or focus nodes
   * are non-text nodes, for instance. In this case, we want to trigger
   * a re-render of the editor, which in turn forces selection into
   * the correct place in the DOM. The `forceSelection` method
   * accomplishes this.
   *
   * This method should be used in cases where you need to explicitly
   * move the DOM selection from one place to another without a change
   * in ContentState.
   */


  EditorState.forceSelection = function forceSelection(editorState, selection) {
    if (!selection.getHasFocus()) {
      selection = selection.set('hasFocus', true);
    }
    return updateSelection(editorState, selection, true);
  };

  /**
   * Move selection to the end of the editor without forcing focus.
   */


  EditorState.moveSelectionToEnd = function moveSelectionToEnd(editorState) {
    var content = editorState.getCurrentContent();
    var lastBlock = content.getLastBlock();
    var lastKey = lastBlock.getKey();
    var length = lastBlock.getLength();

    return EditorState.acceptSelection(editorState, new SelectionState({
      anchorKey: lastKey,
      anchorOffset: length,
      focusKey: lastKey,
      focusOffset: length,
      isBackward: false
    }));
  };

  /**
   * Force focus to the end of the editor. This is useful in scenarios
   * where we want to programmatically focus the input and it makes sense
   * to allow the user to continue working seamlessly.
   */


  EditorState.moveFocusToEnd = function moveFocusToEnd(editorState) {
    var afterSelectionMove = EditorState.moveSelectionToEnd(editorState);
    return EditorState.forceSelection(afterSelectionMove, afterSelectionMove.getSelection());
  };

  /**
   * Push the current ContentState onto the undo stack if it should be
   * considered a boundary state, and set the provided ContentState as the
   * new current content.
   */


  EditorState.push = function push(editorState, contentState, changeType) {
    if (editorState.getCurrentContent() === contentState) {
      return editorState;
    }

    var forceSelection = changeType !== 'insert-characters';
    var directionMap = EditorBidiService.getDirectionMap(contentState, editorState.getDirectionMap());

    if (!editorState.getAllowUndo()) {
      return EditorState.set(editorState, {
        currentContent: contentState,
        directionMap: directionMap,
        lastChangeType: changeType,
        selection: contentState.getSelectionAfter(),
        forceSelection: forceSelection,
        inlineStyleOverride: null
      });
    }

    var selection = editorState.getSelection();
    var currentContent = editorState.getCurrentContent();
    var undoStack = editorState.getUndoStack();
    var newContent = contentState;

    if (selection !== currentContent.getSelectionAfter() || mustBecomeBoundary(editorState, changeType)) {
      undoStack = undoStack.push(currentContent);
      newContent = newContent.set('selectionBefore', selection);
    } else if (changeType === 'insert-characters' || changeType === 'backspace-character' || changeType === 'delete-character') {
      // Preserve the previous selection.
      newContent = newContent.set('selectionBefore', currentContent.getSelectionBefore());
    }

    var inlineStyleOverride = editorState.getInlineStyleOverride();

    // Don't discard inline style overrides for the following change types:
    var overrideChangeTypes = ['adjust-depth', 'change-block-type', 'split-block'];

    if (overrideChangeTypes.indexOf(changeType) === -1) {
      inlineStyleOverride = null;
    }

    var editorStateChanges = {
      currentContent: newContent,
      directionMap: directionMap,
      undoStack: undoStack,
      redoStack: Stack(),
      lastChangeType: changeType,
      selection: contentState.getSelectionAfter(),
      forceSelection: forceSelection,
      inlineStyleOverride: inlineStyleOverride
    };

    return EditorState.set(editorState, editorStateChanges);
  };

  /**
   * Make the top ContentState in the undo stack the new current content and
   * push the current content onto the redo stack.
   */


  EditorState.undo = function undo(editorState) {
    if (!editorState.getAllowUndo()) {
      return editorState;
    }

    var undoStack = editorState.getUndoStack();
    var newCurrentContent = undoStack.peek();
    if (!newCurrentContent) {
      return editorState;
    }

    var currentContent = editorState.getCurrentContent();
    var directionMap = EditorBidiService.getDirectionMap(newCurrentContent, editorState.getDirectionMap());

    return EditorState.set(editorState, {
      currentContent: newCurrentContent,
      directionMap: directionMap,
      undoStack: undoStack.shift(),
      redoStack: editorState.getRedoStack().push(currentContent),
      forceSelection: true,
      inlineStyleOverride: null,
      lastChangeType: 'undo',
      nativelyRenderedContent: null,
      selection: currentContent.getSelectionBefore()
    });
  };

  /**
   * Make the top ContentState in the redo stack the new current content and
   * push the current content onto the undo stack.
   */


  EditorState.redo = function redo(editorState) {
    if (!editorState.getAllowUndo()) {
      return editorState;
    }

    var redoStack = editorState.getRedoStack();
    var newCurrentContent = redoStack.peek();
    if (!newCurrentContent) {
      return editorState;
    }

    var currentContent = editorState.getCurrentContent();
    var directionMap = EditorBidiService.getDirectionMap(newCurrentContent, editorState.getDirectionMap());

    return EditorState.set(editorState, {
      currentContent: newCurrentContent,
      directionMap: directionMap,
      undoStack: editorState.getUndoStack().push(currentContent),
      redoStack: redoStack.shift(),
      forceSelection: true,
      inlineStyleOverride: null,
      lastChangeType: 'redo',
      nativelyRenderedContent: null,
      selection: newCurrentContent.getSelectionAfter()
    });
  };

  /**
   * Not for public consumption.
   */


  function EditorState(immutable) {
    _classCallCheck(this, EditorState);

    this._immutable = immutable;
  }

  /**
   * Not for public consumption.
   */


  EditorState.prototype.getImmutable = function getImmutable() {
    return this._immutable;
  };

  return EditorState;
}();

/**
 * Set the supplied SelectionState as the new current selection, and set
 * the `force` flag to trigger manual selection placement by the view.
 */


function updateSelection(editorState, selection, forceSelection) {
  return EditorState.set(editorState, {
    selection: selection,
    forceSelection: forceSelection,
    nativelyRenderedContent: null,
    inlineStyleOverride: null
  });
}

/**
 * Regenerate the entire tree map for a given ContentState and decorator.
 * Returns an OrderedMap that maps all available ContentBlock objects.
 */
function generateNewTreeMap(contentState, decorator) {
  return contentState.getBlockMap().map(function (block) {
    return BlockTree.generate(contentState, block, decorator);
  }).toOrderedMap();
}

/**
 * Regenerate tree map objects for all ContentBlocks that have changed
 * between the current editorState and newContent. Returns an OrderedMap
 * with only changed regenerated tree map objects.
 */
function regenerateTreeForNewBlocks(editorState, newBlockMap, newEntityMap, decorator) {
  var contentState = editorState.getCurrentContent().set('entityMap', newEntityMap);
  var prevBlockMap = contentState.getBlockMap();
  var prevTreeMap = editorState.getImmutable().get('treeMap');
  return prevTreeMap.merge(newBlockMap.toSeq().filter(function (block, key) {
    return block !== prevBlockMap.get(key);
  }).map(function (block) {
    return BlockTree.generate(contentState, block, decorator);
  }));
}

/**
 * Generate tree map objects for a new decorator object, preserving any
 * decorations that are unchanged from the previous decorator.
 *
 * Note that in order for this to perform optimally, decoration Lists for
 * decorators should be preserved when possible to allow for direct immutable
 * List comparison.
 */
function regenerateTreeForNewDecorator(content, blockMap, previousTreeMap, decorator, existingDecorator) {
  return previousTreeMap.merge(blockMap.toSeq().filter(function (block) {
    return decorator.getDecorations(block, content) !== existingDecorator.getDecorations(block, content);
  }).map(function (block) {
    return BlockTree.generate(content, block, decorator);
  }));
}

/**
 * Return whether a change should be considered a boundary state, given
 * the previous change type. Allows us to discard potential boundary states
 * during standard typing or deletion behavior.
 */
function mustBecomeBoundary(editorState, changeType) {
  var lastChangeType = editorState.getLastChangeType();
  return changeType !== lastChangeType || changeType !== 'insert-characters' && changeType !== 'backspace-character' && changeType !== 'delete-character';
}

function getInlineStyleForCollapsedSelection(content, selection) {
  var startKey = selection.getStartKey();
  var startOffset = selection.getStartOffset();
  var startBlock = content.getBlockForKey(startKey);

  // If the cursor is not at the start of the block, look backward to
  // preserve the style of the preceding character.
  if (startOffset > 0) {
    return startBlock.getInlineStyleAt(startOffset - 1);
  }

  // The caret is at position zero in this block. If the block has any
  // text at all, use the style of the first character.
  if (startBlock.getLength()) {
    return startBlock.getInlineStyleAt(0);
  }

  // Otherwise, look upward in the document to find the closest character.
  return lookUpwardForInlineStyle(content, startKey);
}

function getInlineStyleForNonCollapsedSelection(content, selection) {
  var startKey = selection.getStartKey();
  var startOffset = selection.getStartOffset();
  var startBlock = content.getBlockForKey(startKey);

  // If there is a character just inside the selection, use its style.
  if (startOffset < startBlock.getLength()) {
    return startBlock.getInlineStyleAt(startOffset);
  }

  // Check if the selection at the end of a non-empty block. Use the last
  // style in the block.
  if (startOffset > 0) {
    return startBlock.getInlineStyleAt(startOffset - 1);
  }

  // Otherwise, look upward in the document to find the closest character.
  return lookUpwardForInlineStyle(content, startKey);
}

function lookUpwardForInlineStyle(content, fromKey) {
  var lastNonEmpty = content.getBlockMap().reverse().skipUntil(function (_, k) {
    return k === fromKey;
  }).skip(1).skipUntil(function (block, _) {
    return block.getLength();
  }).first();

  if (lastNonEmpty) return lastNonEmpty.getInlineStyleAt(lastNonEmpty.getLength() - 1);
  return OrderedSet();
}

module.exports = EditorState;

/***/ }),
/* 13 */
/***/ (function(module, exports) {

// removed by extract-text-webpack-plugin

/***/ }),
/* 14 */
/***/ (function(module, exports, __webpack_require__) {

/**
 *  Copyright (c) 2014-2015, 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.
 */

(function (global, factory) {
   true ? module.exports = factory() :
  typeof define === 'function' && define.amd ? define(factory) :
  global.Immutable = factory();
}(this, function () { 'use strict';var SLICE$0 = Array.prototype.slice;

  function createClass(ctor, superClass) {
    if (superClass) {
      ctor.prototype = Object.create(superClass.prototype);
    }
    ctor.prototype.constructor = ctor;
  }

  function Iterable(value) {
      return isIterable(value) ? value : Seq(value);
    }


  createClass(KeyedIterable, Iterable);
    function KeyedIterable(value) {
      return isKeyed(value) ? value : KeyedSeq(value);
    }


  createClass(IndexedIterable, Iterable);
    function IndexedIterable(value) {
      return isIndexed(value) ? value : IndexedSeq(value);
    }


  createClass(SetIterable, Iterable);
    function SetIterable(value) {
      return isIterable(value) && !isAssociative(value) ? value : SetSeq(value);
    }



  function isIterable(maybeIterable) {
    return !!(maybeIterable && maybeIterable[IS_ITERABLE_SENTINEL]);
  }

  function isKeyed(maybeKeyed) {
    return !!(maybeKeyed && maybeKeyed[IS_KEYED_SENTINEL]);
  }

  function isIndexed(maybeIndexed) {
    return !!(maybeIndexed && maybeIndexed[IS_INDEXED_SENTINEL]);
  }

  function isAssociative(maybeAssociative) {
    return isKeyed(maybeAssociative) || isIndexed(maybeAssociative);
  }

  function isOrdered(maybeOrdered) {
    return !!(maybeOrdered && maybeOrdered[IS_ORDERED_SENTINEL]);
  }

  Iterable.isIterable = isIterable;
  Iterable.isKeyed = isKeyed;
  Iterable.isIndexed = isIndexed;
  Iterable.isAssociative = isAssociative;
  Iterable.isOrdered = isOrdered;

  Iterable.Keyed = KeyedIterable;
  Iterable.Indexed = IndexedIterable;
  Iterable.Set = SetIterable;


  var IS_ITERABLE_SENTINEL = '@@__IMMUTABLE_ITERABLE__@@';
  var IS_KEYED_SENTINEL = '@@__IMMUTABLE_KEYED__@@';
  var IS_INDEXED_SENTINEL = '@@__IMMUTABLE_INDEXED__@@';
  var IS_ORDERED_SENTINEL = '@@__IMMUTABLE_ORDERED__@@';

  // Used for setting prototype methods that IE8 chokes on.
  var DELETE = 'delete';

  // Constants describing the size of trie nodes.
  var SHIFT = 5; // Resulted in best performance after ______?
  var SIZE = 1 << SHIFT;
  var MASK = SIZE - 1;

  // A consistent shared value representing "not set" which equals nothing other
  // than itself, and nothing that could be provided externally.
  var NOT_SET = {};

  // Boolean references, Rough equivalent of `bool &`.
  var CHANGE_LENGTH = { value: false };
  var DID_ALTER = { value: false };

  function MakeRef(ref) {
    ref.value = false;
    return ref;
  }

  function SetRef(ref) {
    ref && (ref.value = true);
  }

  // A function which returns a value representing an "owner" for transient writes
  // to tries. The return value will only ever equal itself, and will not equal
  // the return of any subsequent call of this function.
  function OwnerID() {}

  // http://jsperf.com/copy-array-inline
  function arrCopy(arr, offset) {
    offset = offset || 0;
    var len = Math.max(0, arr.length - offset);
    var newArr = new Array(len);
    for (var ii = 0; ii < len; ii++) {
      newArr[ii] = arr[ii + offset];
    }
    return newArr;
  }

  function ensureSize(iter) {
    if (iter.size === undefined) {
      iter.size = iter.__iterate(returnTrue);
    }
    return iter.size;
  }

  function wrapIndex(iter, index) {
    // This implements "is array index" which the ECMAString spec defines as:
    //
    //     A String property name P is an array index if and only if
    //     ToString(ToUint32(P)) is equal to P and ToUint32(P) is not equal
    //     to 2^32−1.
    //
    // http://www.ecma-international.org/ecma-262/6.0/#sec-array-exotic-objects
    if (typeof index !== 'number') {
      var uint32Index = index >>> 0; // N >>> 0 is shorthand for ToUint32
      if ('' + uint32Index !== index || uint32Index === 4294967295) {
        return NaN;
      }
      index = uint32Index;
    }
    return index < 0 ? ensureSize(iter) + index : index;
  }

  function returnTrue() {
    return true;
  }

  function wholeSlice(begin, end, size) {
    return (begin === 0 || (size !== undefined && begin <= -size)) &&
      (end === undefined || (size !== undefined && end >= size));
  }

  function resolveBegin(begin, size) {
    return resolveIndex(begin, size, 0);
  }

  function resolveEnd(end, size) {
    return resolveIndex(end, size, size);
  }

  function resolveIndex(index, size, defaultIndex) {
    return index === undefined ?
      defaultIndex :
      index < 0 ?
        Math.max(0, size + index) :
        size === undefined ?
          index :
          Math.min(size, index);
  }

  /* global Symbol */

  var ITERATE_KEYS = 0;
  var ITERATE_VALUES = 1;
  var ITERATE_ENTRIES = 2;

  var REAL_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
  var FAUX_ITERATOR_SYMBOL = '@@iterator';

  var ITERATOR_SYMBOL = REAL_ITERATOR_SYMBOL || FAUX_ITERATOR_SYMBOL;


  function Iterator(next) {
      this.next = next;
    }

    Iterator.prototype.toString = function() {
      return '[Iterator]';
    };


  Iterator.KEYS = ITERATE_KEYS;
  Iterator.VALUES = ITERATE_VALUES;
  Iterator.ENTRIES = ITERATE_ENTRIES;

  Iterator.prototype.inspect =
  Iterator.prototype.toSource = function () { return this.toString(); }
  Iterator.prototype[ITERATOR_SYMBOL] = function () {
    return this;
  };


  function iteratorValue(type, k, v, iteratorResult) {
    var value = type === 0 ? k : type === 1 ? v : [k, v];
    iteratorResult ? (iteratorResult.value = value) : (iteratorResult = {
      value: value, done: false
    });
    return iteratorResult;
  }

  function iteratorDone() {
    return { value: undefined, done: true };
  }

  function hasIterator(maybeIterable) {
    return !!getIteratorFn(maybeIterable);
  }

  function isIterator(maybeIterator) {
    return maybeIterator && typeof maybeIterator.next === 'function';
  }

  function getIterator(iterable) {
    var iteratorFn = getIteratorFn(iterable);
    return iteratorFn && iteratorFn.call(iterable);
  }

  function getIteratorFn(iterable) {
    var iteratorFn = iterable && (
      (REAL_ITERATOR_SYMBOL && iterable[REAL_ITERATOR_SYMBOL]) ||
      iterable[FAUX_ITERATOR_SYMBOL]
    );
    if (typeof iteratorFn === 'function') {
      return iteratorFn;
    }
  }

  function isArrayLike(value) {
    return value && typeof value.length === 'number';
  }

  createClass(Seq, Iterable);
    function Seq(value) {
      return value === null || value === undefined ? emptySequence() :
        isIterable(value) ? value.toSeq() : seqFromValue(value);
    }

    Seq.of = function(/*...values*/) {
      return Seq(arguments);
    };

    Seq.prototype.toSeq = function() {
      return this;
    };

    Seq.prototype.toString = function() {
      return this.__toString('Seq {', '}');
    };

    Seq.prototype.cacheResult = function() {
      if (!this._cache && this.__iterateUncached) {
        this._cache = this.entrySeq().toArray();
        this.size = this._cache.length;
      }
      return this;
    };

    // abstract __iterateUncached(fn, reverse)

    Seq.prototype.__iterate = function(fn, reverse) {
      return seqIterate(this, fn, reverse, true);
    };

    // abstract __iteratorUncached(type, reverse)

    Seq.prototype.__iterator = function(type, reverse) {
      return seqIterator(this, type, reverse, true);
    };



  createClass(KeyedSeq, Seq);
    function KeyedSeq(value) {
      return value === null || value === undefined ?
        emptySequence().toKeyedSeq() :
        isIterable(value) ?
          (isKeyed(value) ? value.toSeq() : value.fromEntrySeq()) :
          keyedSeqFromValue(value);
    }

    KeyedSeq.prototype.toKeyedSeq = function() {
      return this;
    };



  createClass(IndexedSeq, Seq);
    function IndexedSeq(value) {
      return value === null || value === undefined ? emptySequence() :
        !isIterable(value) ? indexedSeqFromValue(value) :
        isKeyed(value) ? value.entrySeq() : value.toIndexedSeq();
    }

    IndexedSeq.of = function(/*...values*/) {
      return IndexedSeq(arguments);
    };

    IndexedSeq.prototype.toIndexedSeq = function() {
      return this;
    };

    IndexedSeq.prototype.toString = function() {
      return this.__toString('Seq [', ']');
    };

    IndexedSeq.prototype.__iterate = function(fn, reverse) {
      return seqIterate(this, fn, reverse, false);
    };

    IndexedSeq.prototype.__iterator = function(type, reverse) {
      return seqIterator(this, type, reverse, false);
    };



  createClass(SetSeq, Seq);
    function SetSeq(value) {
      return (
        value === null || value === undefined ? emptySequence() :
        !isIterable(value) ? indexedSeqFromValue(value) :
        isKeyed(value) ? value.entrySeq() : value
      ).toSetSeq();
    }

    SetSeq.of = function(/*...values*/) {
      return SetSeq(arguments);
    };

    SetSeq.prototype.toSetSeq = function() {
      return this;
    };



  Seq.isSeq = isSeq;
  Seq.Keyed = KeyedSeq;
  Seq.Set = SetSeq;
  Seq.Indexed = IndexedSeq;

  var IS_SEQ_SENTINEL = '@@__IMMUTABLE_SEQ__@@';

  Seq.prototype[IS_SEQ_SENTINEL] = true;



  createClass(ArraySeq, IndexedSeq);
    function ArraySeq(array) {
      this._array = array;
      this.size = array.length;
    }

    ArraySeq.prototype.get = function(index, notSetValue) {
      return this.has(index) ? this._array[wrapIndex(this, index)] : notSetValue;
    };

    ArraySeq.prototype.__iterate = function(fn, reverse) {
      var array = this._array;
      var maxIndex = array.length - 1;
      for (var ii = 0; ii <= maxIndex; ii++) {
        if (fn(array[reverse ? maxIndex - ii : ii], ii, this) === false) {
          return ii + 1;
        }
      }
      return ii;
    };

    ArraySeq.prototype.__iterator = function(type, reverse) {
      var array = this._array;
      var maxIndex = array.length - 1;
      var ii = 0;
      return new Iterator(function() 
        {return ii > maxIndex ?
          iteratorDone() :
          iteratorValue(type, ii, array[reverse ? maxIndex - ii++ : ii++])}
      );
    };



  createClass(ObjectSeq, KeyedSeq);
    function ObjectSeq(object) {
      var keys = Object.keys(object);
      this._object = object;
      this._keys = keys;
      this.size = keys.length;
    }

    ObjectSeq.prototype.get = function(key, notSetValue) {
      if (notSetValue !== undefined && !this.has(key)) {
        return notSetValue;
      }
      return this._object[key];
    };

    ObjectSeq.prototype.has = function(key) {
      return this._object.hasOwnProperty(key);
    };

    ObjectSeq.prototype.__iterate = function(fn, reverse) {
      var object = this._object;
      var keys = this._keys;
      var maxIndex = keys.length - 1;
      for (var ii = 0; ii <= maxIndex; ii++) {
        var key = keys[reverse ? maxIndex - ii : ii];
        if (fn(object[key], key, this) === false) {
          return ii + 1;
        }
      }
      return ii;
    };

    ObjectSeq.prototype.__iterator = function(type, reverse) {
      var object = this._object;
      var keys = this._keys;
      var maxIndex = keys.length - 1;
      var ii = 0;
      return new Iterator(function()  {
        var key = keys[reverse ? maxIndex - ii : ii];
        return ii++ > maxIndex ?
          iteratorDone() :
          iteratorValue(type, key, object[key]);
      });
    };

  ObjectSeq.prototype[IS_ORDERED_SENTINEL] = true;


  createClass(IterableSeq, IndexedSeq);
    function IterableSeq(iterable) {
      this._iterable = iterable;
      this.size = iterable.length || iterable.size;
    }

    IterableSeq.prototype.__iterateUncached = function(fn, reverse) {
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var iterable = this._iterable;
      var iterator = getIterator(iterable);
      var iterations = 0;
      if (isIterator(iterator)) {
        var step;
        while (!(step = iterator.next()).done) {
          if (fn(step.value, iterations++, this) === false) {
            break;
          }
        }
      }
      return iterations;
    };

    IterableSeq.prototype.__iteratorUncached = function(type, reverse) {
      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var iterable = this._iterable;
      var iterator = getIterator(iterable);
      if (!isIterator(iterator)) {
        return new Iterator(iteratorDone);
      }
      var iterations = 0;
      return new Iterator(function()  {
        var step = iterator.next();
        return step.done ? step : iteratorValue(type, iterations++, step.value);
      });
    };



  createClass(IteratorSeq, IndexedSeq);
    function IteratorSeq(iterator) {
      this._iterator = iterator;
      this._iteratorCache = [];
    }

    IteratorSeq.prototype.__iterateUncached = function(fn, reverse) {
      if (reverse) {
        return this.cacheResult().__iterate(fn, reverse);
      }
      var iterator = this._iterator;
      var cache = this._iteratorCache;
      var iterations = 0;
      while (iterations < cache.length) {
        if (fn(cache[iterations], iterations++, this) === false) {
          return iterations;
        }
      }
      var step;
      while (!(step = iterator.next()).done) {
        var val = step.value;
        cache[iterations] = val;
        if (fn(val, iterations++, this) === false) {
          break;
        }
      }
      return iterations;
    };

    IteratorSeq.prototype.__iteratorUncached = function(type, reverse) {
      if (reverse) {
        return this.cacheResult().__iterator(type, reverse);
      }
      var iterator = this._iterator;
      var cache = this._iteratorCache;
      var iterations = 0;
      return new Iterator(function()  {
        if (iterations >= cache.length) {
          var step = iterator.next();
          if (step.done) {
            return step;
          }
          cache[iterations] = step.value;
        }
        return iteratorValue(type, iterations, cache[iterations++]);
      });
    };




  // # pragma Helper functions

  function isSeq(maybeSeq) {
    return !!(maybeSeq && maybeSeq[IS_SEQ_SENTINEL]);
  }

  var EMPTY_SEQ;

  function emptySequence() {
    return EMPTY_SEQ || (EMPTY_SEQ = new ArraySeq([]));
  }

  function keyedSeqFromValue(value) {
    var seq =
      Array.isArray(value) ? new ArraySeq(value).fromEntrySeq() :
      isIterator(value) ? new IteratorSeq(value).fromEntrySeq() :
      hasIterator(value) ? new IterableSeq(value).fromEntrySeq() :
      typeof value === 'object' ? new ObjectSeq(value) :
      undefined;
    if (!seq) {
      throw new TypeError(
        'Expected Array or iterable object of [k, v] entries, '+
        'or keyed object: ' + value
      );
    }
    return seq;
  }

  function indexedSeqFromValue(value) {
    var seq = maybeIndexedSeqFromValue(value);
    if (!seq) {
      throw new TypeError(
        'Expected Array or iterable object of values: ' + value
      );
    }
    return seq;
  }

  function seqFromValue(value) {
    var seq = maybeIndexedSeqFromValue(value) ||
      (typeof value === 'object' && new ObjectSeq(value));
    if (!seq) {
      throw new TypeError(
        'Expected Array or iterable object of values, or keyed object: ' + value
      );
    }
    return seq;
  }

  function maybeIndexedSeqFromValue(value) {
    return (
      isArrayLike(value) ? new ArraySeq(value) :
      isIterator(value) ? new IteratorSeq(value) :
      hasIterator(value) ? new IterableSeq(value) :
      undefined
    );
  }

  function seqIterate(seq, fn, reverse, useKeys) {
    var cache = seq._cache;
    if (cache) {
      var maxIndex = cache.length - 1;
      for (var ii = 0; ii <= maxIndex; ii++) {
        var entry = cache[reverse ? maxIndex - ii : ii];
        if (fn(entry[1], useKeys ? entry[0] : ii, seq) === false) {
          return ii + 1;
        }
      }
      return ii;
    }
    return seq.__iterateUncached(fn, reverse);
  }

  function seqIterator(seq, type, reverse, useKeys) {
    var cache = seq._cache;
    if (cache) {
      var maxIndex = cache.length - 1;
      var ii = 0;
      return new Iterator(function()  {
        var entry = cache[reverse ? maxIndex - ii : ii];
        return ii++ > maxIndex ?
          iteratorDone() :
          iteratorValue(type, useKeys ? entry[0] : ii - 1, entry[1]);
      });
    }
    return seq.__iteratorUncached(type, reverse);
  }

  function fromJS(json, converter) {
    return converter ?
      fromJSWith(converter, json, '', {'': json}) :
      fromJSDefault(json);
  }

  function fromJSWith(converter, json, key, parentJSON) {
    if (Array.isArray(json)) {
      return converter.call(parentJSON, key, IndexedSeq(json).map(function(v, k)  {return fromJSWith(converter, v, k, json)}));
    }
    if (isPlainObj(json)) {
      return converter.call(parentJSON, key, KeyedSeq(json).map(function(v, k)  {return fromJSWith(converter, v, k, json)}));
    }
    return json;
  }

  function fromJSDefault(json) {
    if (Array.isArray(json)) {
      return IndexedSeq(json).map(fromJSDefault).toList();
    }
    if (isPlainObj(json)) {
      return KeyedSeq(json).map(fromJSDefault).toMap();
    }
    return json;
  }

  function isPlainObj(value) {
    return value && (value.constructor === Object || value.constructor === undefined);
  }

  /**
   * An extension of the "same-value" algorithm as [described for use by ES6 Map
   * and Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map#Key_equality)
   *
   * NaN is considered the same as NaN, however -0 and 0 are considered the same
   * value, which is different from the algorithm described by
   * [`Object.is`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is).
   *
   * This is extended further to allow Objects to describe the values they
   * represent, by way of `valueOf` or `equals` (and `hashCode`).
   *
   * Note: because of this extension, the key equality of Immutable.Map and the
   * value equality of Immutable.Set will differ from ES6 Map and Set.
   *
   * ### Defining custom values
   *
   * The easiest way to describe the value an object represents is by implementing
   * `valueOf`. For example, `Date` represents a value by returning a unix
   * timestamp for `valueOf`:
   *
   *     var date1 = new Date(1234567890000); // Fri Feb 13 2009 ...
   *     var date2 = new Date(1234567890000);
   *     date1.valueOf(); // 1234567890000
   *     assert( date1 !== date2 );
   *     assert( Immutable.is( date1, date2 ) );
   *
   * Note: overriding `valueOf` may have other implications if you use this object
   * where JavaScript expects a primitive, such as implicit string coercion.
   *
   * For more complex types, especially collections, implementing `valueOf` may
   * not be performant. An alternative is to implement `equals` and `hashCode`.
   *
   * `equals` takes another object, presumably of similar type, and returns true
   * if the it is equal. E