mcs-ng-material/resources/lib/cropperjs/dist/cropper.js

MCS NG-Meterial is based on mcs-web.

/*!
 * Cropper.js v1.2.2
 * https://github.com/fengyuanchen/cropperjs
 *
 * Copyright (c) 2015-2018 Chen Fengyuan
 * Released under the MIT license
 *
 * Date: 2018-01-03T13:27:18.062Z
 */

(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
	typeof define === 'function' && define.amd ? define(factory) :
	(global.Cropper = factory());
}(this, (function () { 'use strict';

var WINDOW = typeof window !== 'undefined' ? window : {};
var NAMESPACE = 'cropper';

// Actions
var ACTION_ALL = 'all';
var ACTION_CROP = 'crop';
var ACTION_MOVE = 'move';
var ACTION_ZOOM = 'zoom';
var ACTION_EAST = 'e';
var ACTION_WEST = 'w';
var ACTION_SOUTH = 's';
var ACTION_NORTH = 'n';
var ACTION_NORTH_EAST = 'ne';
var ACTION_NORTH_WEST = 'nw';
var ACTION_SOUTH_EAST = 'se';
var ACTION_SOUTH_WEST = 'sw';

// Classes
var CLASS_CROP = NAMESPACE + '-crop';
var CLASS_DISABLED = NAMESPACE + '-disabled';
var CLASS_HIDDEN = NAMESPACE + '-hidden';
var CLASS_HIDE = NAMESPACE + '-hide';
var CLASS_INVISIBLE = NAMESPACE + '-invisible';
var CLASS_MODAL = NAMESPACE + '-modal';
var CLASS_MOVE = NAMESPACE + '-move';

// Data keys
var DATA_ACTION = 'action';
var DATA_PREVIEW = 'preview';

// Drag modes
var DRAG_MODE_CROP = 'crop';
var DRAG_MODE_MOVE = 'move';
var DRAG_MODE_NONE = 'none';

// Events
var EVENT_CROP = 'crop';
var EVENT_CROP_END = 'cropend';
var EVENT_CROP_MOVE = 'cropmove';
var EVENT_CROP_START = 'cropstart';
var EVENT_DBLCLICK = 'dblclick';
var EVENT_ERROR = 'error';
var EVENT_LOAD = 'load';
var EVENT_POINTER_DOWN = WINDOW.PointerEvent ? 'pointerdown' : 'touchstart mousedown';
var EVENT_POINTER_MOVE = WINDOW.PointerEvent ? 'pointermove' : 'touchmove mousemove';
var EVENT_POINTER_UP = WINDOW.PointerEvent ? 'pointerup pointercancel' : 'touchend touchcancel mouseup';
var EVENT_READY = 'ready';
var EVENT_RESIZE = 'resize';
var EVENT_WHEEL = 'wheel mousewheel DOMMouseScroll';
var EVENT_ZOOM = 'zoom';

// RegExps
var REGEXP_ACTIONS = /^(e|w|s|n|se|sw|ne|nw|all|crop|move|zoom)$/;
var REGEXP_DATA_URL = /^data:/;
var REGEXP_DATA_URL_JPEG = /^data:image\/jpeg;base64,/;
var REGEXP_TAG_NAME = /^(img|canvas)$/i;

var DEFAULTS = {
  // Define the view mode of the cropper
  viewMode: 0, // 0, 1, 2, 3

  // Define the dragging mode of the cropper
  dragMode: DRAG_MODE_CROP, // 'crop', 'move' or 'none'

  // Define the aspect ratio of the crop box
  aspectRatio: NaN,

  // An object with the previous cropping result data
  data: null,

  // A selector for adding extra containers to preview
  preview: '',

  // Re-render the cropper when resize the window
  responsive: true,

  // Restore the cropped area after resize the window
  restore: true,

  // Check if the current image is a cross-origin image
  checkCrossOrigin: true,

  // Check the current image's Exif Orientation information
  checkOrientation: true,

  // Show the black modal
  modal: true,

  // Show the dashed lines for guiding
  guides: true,

  // Show the center indicator for guiding
  center: true,

  // Show the white modal to highlight the crop box
  highlight: true,

  // Show the grid background
  background: true,

  // Enable to crop the image automatically when initialize
  autoCrop: true,

  // Define the percentage of automatic cropping area when initializes
  autoCropArea: 0.8,

  // Enable to move the image
  movable: true,

  // Enable to rotate the image
  rotatable: true,

  // Enable to scale the image
  scalable: true,

  // Enable to zoom the image
  zoomable: true,

  // Enable to zoom the image by dragging touch
  zoomOnTouch: true,

  // Enable to zoom the image by wheeling mouse
  zoomOnWheel: true,

  // Define zoom ratio when zoom the image by wheeling mouse
  wheelZoomRatio: 0.1,

  // Enable to move the crop box
  cropBoxMovable: true,

  // Enable to resize the crop box
  cropBoxResizable: true,

  // Toggle drag mode between "crop" and "move" when click twice on the cropper
  toggleDragModeOnDblclick: true,

  // Size limitation
  minCanvasWidth: 0,
  minCanvasHeight: 0,
  minCropBoxWidth: 0,
  minCropBoxHeight: 0,
  minContainerWidth: 200,
  minContainerHeight: 100,

  // Shortcuts of events
  ready: null,
  cropstart: null,
  cropmove: null,
  cropend: null,
  crop: null,
  zoom: null
};

var TEMPLATE = '<div class="cropper-container">' + '<div class="cropper-wrap-box">' + '<div class="cropper-canvas"></div>' + '</div>' + '<div class="cropper-drag-box"></div>' + '<div class="cropper-crop-box">' + '<span class="cropper-view-box"></span>' + '<span class="cropper-dashed dashed-h"></span>' + '<span class="cropper-dashed dashed-v"></span>' + '<span class="cropper-center"></span>' + '<span class="cropper-face"></span>' + '<span class="cropper-line line-e" data-action="e"></span>' + '<span class="cropper-line line-n" data-action="n"></span>' + '<span class="cropper-line line-w" data-action="w"></span>' + '<span class="cropper-line line-s" data-action="s"></span>' + '<span class="cropper-point point-e" data-action="e"></span>' + '<span class="cropper-point point-n" data-action="n"></span>' + '<span class="cropper-point point-w" data-action="w"></span>' + '<span class="cropper-point point-s" data-action="s"></span>' + '<span class="cropper-point point-ne" data-action="ne"></span>' + '<span class="cropper-point point-nw" data-action="nw"></span>' + '<span class="cropper-point point-sw" data-action="sw"></span>' + '<span class="cropper-point point-se" data-action="se"></span>' + '</div>' + '</div>';

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
  return typeof obj;
} : function (obj) {
  return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
};











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

var createClass = function () {
  function defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }

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









































var toConsumableArray = function (arr) {
  if (Array.isArray(arr)) {
    for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i];

    return arr2;
  } else {
    return Array.from(arr);
  }
};

/**
 * Check if the given value is not a number.
 */
var isNaN = Number.isNaN || WINDOW.isNaN;

/**
 * Check if the given value is a number.
 * @param {*} value - The value to check.
 * @returns {boolean} Returns `true` if the given value is a number, else `false`.
 */
function isNumber(value) {
  return typeof value === 'number' && !isNaN(value);
}

/**
 * Check if the given value is undefined.
 * @param {*} value - The value to check.
 * @returns {boolean} Returns `true` if the given value is undefined, else `false`.
 */
function isUndefined(value) {
  return typeof value === 'undefined';
}

/**
 * Check if the given value is an object.
 * @param {*} value - The value to check.
 * @returns {boolean} Returns `true` if the given value is an object, else `false`.
 */
function isObject(value) {
  return (typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object' && value !== null;
}

var hasOwnProperty = Object.prototype.hasOwnProperty;

/**
 * Check if the given value is a plain object.
 * @param {*} value - The value to check.
 * @returns {boolean} Returns `true` if the given value is a plain object, else `false`.
 */

function isPlainObject(value) {
  if (!isObject(value)) {
    return false;
  }

  try {
    var _constructor = value.constructor;
    var prototype = _constructor.prototype;


    return _constructor && prototype && hasOwnProperty.call(prototype, 'isPrototypeOf');
  } catch (e) {
    return false;
  }
}

/**
 * Check if the given value is a function.
 * @param {*} value - The value to check.
 * @returns {boolean} Returns `true` if the given value is a function, else `false`.
 */
function isFunction(value) {
  return typeof value === 'function';
}

/**
 * Iterate the given data.
 * @param {*} data - The data to iterate.
 * @param {Function} callback - The process function for each element.
 * @returns {*} The original data.
 */
function each(data, callback) {
  if (data && isFunction(callback)) {
    if (Array.isArray(data) || isNumber(data.length) /* array-like */) {
        var length = data.length;

        var i = void 0;

        for (i = 0; i < length; i += 1) {
          if (callback.call(data, data[i], i, data) === false) {
            break;
          }
        }
      } else if (isObject(data)) {
      Object.keys(data).forEach(function (key) {
        callback.call(data, data[key], key, data);
      });
    }
  }

  return data;
}

/**
 * Extend the given object.
 * @param {*} obj - The object to be extended.
 * @param {*} args - The rest objects which will be merged to the first object.
 * @returns {Object} The extended object.
 */
function extend(obj) {
  for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
    args[_key - 1] = arguments[_key];
  }

  if (isObject(obj) && args.length > 0) {
    if (Object.assign) {
      return Object.assign.apply(Object, [obj].concat(args));
    }

    args.forEach(function (arg) {
      if (isObject(arg)) {
        Object.keys(arg).forEach(function (key) {
          obj[key] = arg[key];
        });
      }
    });
  }

  return obj;
}

/**
 * Takes a function and returns a new one that will always have a particular context.
 * @param {Function} fn - The target function.
 * @param {Object} context - The new context for the function.
 * @returns {boolean} The new function.
 */
function proxy(fn, context) {
  for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
    args[_key2 - 2] = arguments[_key2];
  }

  return function () {
    for (var _len3 = arguments.length, args2 = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
      args2[_key3] = arguments[_key3];
    }

    return fn.apply(context, args.concat(args2));
  };
}

var REGEXP_DECIMALS = /\.\d*(?:0|9){12}\d*$/i;

/**
 * Normalize decimal number.
 * Check out {@link http://0.30000000000000004.com/ }
 * @param {number} value - The value to normalize.
 * @param {number} [times=100000000000] - The times for normalizing.
 * @returns {number} Returns the normalized number.
 */
function normalizeDecimalNumber(value) {
  var times = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 100000000000;

  return REGEXP_DECIMALS.test(value) ? Math.round(value * times) / times : value;
}

var REGEXP_SUFFIX = /^(width|height|left|top|marginLeft|marginTop)$/;

/**
 * Apply styles to the given element.
 * @param {Element} element - The target element.
 * @param {Object} styles - The styles for applying.
 */
function setStyle(element, styles) {
  var style = element.style;


  each(styles, function (value, property) {
    if (REGEXP_SUFFIX.test(property) && isNumber(value)) {
      value += 'px';
    }

    style[property] = value;
  });
}

/**
 * Check if the given element has a special class.
 * @param {Element} element - The element to check.
 * @param {string} value - The class to search.
 * @returns {boolean} Returns `true` if the special class was found.
 */
function hasClass(element, value) {
  return element.classList ? element.classList.contains(value) : element.className.indexOf(value) > -1;
}

/**
 * Add classes to the given element.
 * @param {Element} element - The target element.
 * @param {string} value - The classes to be added.
 */
function addClass(element, value) {
  if (!value) {
    return;
  }

  if (isNumber(element.length)) {
    each(element, function (elem) {
      addClass(elem, value);
    });
    return;
  }

  if (element.classList) {
    element.classList.add(value);
    return;
  }

  var className = element.className.trim();

  if (!className) {
    element.className = value;
  } else if (className.indexOf(value) < 0) {
    element.className = className + ' ' + value;
  }
}

/**
 * Remove classes from the given element.
 * @param {Element} element - The target element.
 * @param {string} value - The classes to be removed.
 */
function removeClass(element, value) {
  if (!value) {
    return;
  }

  if (isNumber(element.length)) {
    each(element, function (elem) {
      removeClass(elem, value);
    });
    return;
  }

  if (element.classList) {
    element.classList.remove(value);
    return;
  }

  if (element.className.indexOf(value) >= 0) {
    element.className = element.className.replace(value, '');
  }
}

/**
 * Add or remove classes from the given element.
 * @param {Element} element - The target element.
 * @param {string} value - The classes to be toggled.
 * @param {boolean} added - Add only.
 */
function toggleClass(element, value, added) {
  if (!value) {
    return;
  }

  if (isNumber(element.length)) {
    each(element, function (elem) {
      toggleClass(elem, value, added);
    });
    return;
  }

  // IE10-11 doesn't support the second parameter of `classList.toggle`
  if (added) {
    addClass(element, value);
  } else {
    removeClass(element, value);
  }
}

var REGEXP_HYPHENATE = /([a-z\d])([A-Z])/g;

/**
 * Hyphenate the given value.
 * @param {string} value - The value to hyphenate.
 * @returns {string} The hyphenated value.
 */
function hyphenate(value) {
  return value.replace(REGEXP_HYPHENATE, '$1-$2').toLowerCase();
}

/**
 * Get data from the given element.
 * @param {Element} element - The target element.
 * @param {string} name - The data key to get.
 * @returns {string} The data value.
 */
function getData(element, name) {
  if (isObject(element[name])) {
    return element[name];
  } else if (element.dataset) {
    return element.dataset[name];
  }

  return element.getAttribute('data-' + hyphenate(name));
}

/**
 * Set data to the given element.
 * @param {Element} element - The target element.
 * @param {string} name - The data key to set.
 * @param {string} data - The data value.
 */
function setData(element, name, data) {
  if (isObject(data)) {
    element[name] = data;
  } else if (element.dataset) {
    element.dataset[name] = data;
  } else {
    element.setAttribute('data-' + hyphenate(name), data);
  }
}

/**
 * Remove data from the given element.
 * @param {Element} element - The target element.
 * @param {string} name - The data key to remove.
 */
function removeData(element, name) {
  if (isObject(element[name])) {
    try {
      delete element[name];
    } catch (e) {
      element[name] = null;
    }
  } else if (element.dataset) {
    // #128 Safari not allows to delete dataset property
    try {
      delete element.dataset[name];
    } catch (e) {
      element.dataset[name] = null;
    }
  } else {
    element.removeAttribute('data-' + hyphenate(name));
  }
}

var REGEXP_SPACES = /\s+/;

/**
 * Remove event listener from the target element.
 * @param {Element} element - The event target.
 * @param {string} type - The event type(s).
 * @param {Function} listener - The event listener.
 * @param {Object} options - The event options.
 */
function removeListener(element, type, listener) {
  var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};

  if (!isFunction(listener)) {
    return;
  }

  var types = type.trim().split(REGEXP_SPACES);

  if (types.length > 1) {
    each(types, function (t) {
      removeListener(element, t, listener, options);
    });
    return;
  }

  if (element.removeEventListener) {
    element.removeEventListener(type, listener, options);
  } else if (element.detachEvent) {
    element.detachEvent('on' + type, listener);
  }
}

/**
 * Add event listener to the target element.
 * @param {Element} element - The event target.
 * @param {string} type - The event type(s).
 * @param {Function} listener - The event listener.
 * @param {Object} options - The event options.
 */
function addListener(element, type, _listener) {
  var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};

  if (!isFunction(_listener)) {
    return;
  }

  var types = type.trim().split(REGEXP_SPACES);

  if (types.length > 1) {
    each(types, function (t) {
      addListener(element, t, _listener, options);
    });
    return;
  }

  if (options.once) {
    var originalListener = _listener;

    _listener = function listener() {
      for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
        args[_key4] = arguments[_key4];
      }

      removeListener(element, type, _listener, options);
      return originalListener.apply(element, args);
    };
  }

  if (element.addEventListener) {
    element.addEventListener(type, _listener, options);
  } else if (element.attachEvent) {
    element.attachEvent('on' + type, _listener);
  }
}

/**
 * Dispatch event on the target element.
 * @param {Element} element - The event target.
 * @param {string} type - The event type(s).
 * @param {Object} data - The additional event data.
 * @returns {boolean} Indicate if the event is default prevented or not.
 */
function dispatchEvent(element, type, data) {
  if (element.dispatchEvent) {
    var event = void 0;

    // Event and CustomEvent on IE9-11 are global objects, not constructors
    if (isFunction(Event) && isFunction(CustomEvent)) {
      if (isUndefined(data)) {
        event = new Event(type, {
          bubbles: true,
          cancelable: true
        });
      } else {
        event = new CustomEvent(type, {
          detail: data,
          bubbles: true,
          cancelable: true
        });
      }
    } else if (isUndefined(data)) {
      event = document.createEvent('Event');
      event.initEvent(type, true, true);
    } else {
      event = document.createEvent('CustomEvent');
      event.initCustomEvent(type, true, true, data);
    }

    // IE9+
    return element.dispatchEvent(event);
  } else if (element.fireEvent) {
    // IE6-10 (native events only)
    return element.fireEvent('on' + type);
  }

  return true;
}

/**
 * Get the offset base on the document.
 * @param {Element} element - The target element.
 * @returns {Object} The offset data.
 */
function getOffset(element) {
  var doc = document.documentElement;
  var box = element.getBoundingClientRect();

  return {
    left: box.left + ((window.scrollX || doc && doc.scrollLeft || 0) - (doc && doc.clientLeft || 0)),
    top: box.top + ((window.scrollY || doc && doc.scrollTop || 0) - (doc && doc.clientTop || 0))
  };
}

/**
 * Empty an element.
 * @param {Element} element - The element to empty.
 */
function empty(element) {
  while (element.firstChild) {
    element.removeChild(element.firstChild);
  }
}

var location = WINDOW.location;

var REGEXP_ORIGINS = /^(https?:)\/\/([^:/?#]+):?(\d*)/i;

/**
 * Check if the given URL is a cross origin URL.
 * @param {string} url - The target URL.
 * @returns {boolean} Returns `true` if the given URL is a cross origin URL, else `false`.
 */
function isCrossOriginURL(url) {
  var parts = url.match(REGEXP_ORIGINS);

  return parts && (parts[1] !== location.protocol || parts[2] !== location.hostname || parts[3] !== location.port);
}

/**
 * Add timestamp to the given URL.
 * @param {string} url - The target URL.
 * @returns {string} The result URL.
 */
function addTimestamp(url) {
  var timestamp = 'timestamp=' + new Date().getTime();

  return url + (url.indexOf('?') === -1 ? '?' : '&') + timestamp;
}

/**
 * Get transforms base on the given object.
 * @param {Object} obj - The target object.
 * @returns {string} A string contains transform values.
 */
function getTransforms(_ref) {
  var rotate = _ref.rotate,
      scaleX = _ref.scaleX,
      scaleY = _ref.scaleY,
      translateX = _ref.translateX,
      translateY = _ref.translateY;

  var values = [];

  if (isNumber(translateX) && translateX !== 0) {
    values.push('translateX(' + translateX + 'px)');
  }

  if (isNumber(translateY) && translateY !== 0) {
    values.push('translateY(' + translateY + 'px)');
  }

  // Rotate should come first before scale to match orientation transform
  if (isNumber(rotate) && rotate !== 0) {
    values.push('rotate(' + rotate + 'deg)');
  }

  if (isNumber(scaleX) && scaleX !== 1) {
    values.push('scaleX(' + scaleX + ')');
  }

  if (isNumber(scaleY) && scaleY !== 1) {
    values.push('scaleY(' + scaleY + ')');
  }

  var transform = values.length ? values.join(' ') : 'none';

  return {
    WebkitTransform: transform,
    msTransform: transform,
    transform: transform
  };
}

var navigator = WINDOW.navigator;

var IS_SAFARI_OR_UIWEBVIEW = navigator && /(Macintosh|iPhone|iPod|iPad).*AppleWebKit/i.test(navigator.userAgent);

/**
 * Get an image's natural sizes.
 * @param {string} image - The target image.
 * @param {Function} callback - The callback function.
 */
function getImageNaturalSizes(image, callback) {
  // Modern browsers (except Safari)
  if (image.naturalWidth && !IS_SAFARI_OR_UIWEBVIEW) {
    callback(image.naturalWidth, image.naturalHeight);
    return;
  }

  var newImage = document.createElement('img');
  var body = document.body || document.documentElement;

  newImage.onload = function () {
    callback(newImage.width, newImage.height);

    if (!IS_SAFARI_OR_UIWEBVIEW) {
      body.removeChild(newImage);
    }
  };

  newImage.src = image.src;

  // iOS Safari will convert the image automatically
  // with its orientation once append it into DOM (#279)
  if (!IS_SAFARI_OR_UIWEBVIEW) {
    newImage.style.cssText = 'left:0;' + 'max-height:none!important;' + 'max-width:none!important;' + 'min-height:0!important;' + 'min-width:0!important;' + 'opacity:0;' + 'position:absolute;' + 'top:0;' + 'z-index:-1;';
    body.appendChild(newImage);
  }
}

/**
 * Get the max ratio of a group of pointers.
 * @param {string} pointers - The target pointers.
 * @returns {number} The result ratio.
 */
function getMaxZoomRatio(pointers) {
  var pointers2 = extend({}, pointers);
  var ratios = [];

  each(pointers, function (pointer, pointerId) {
    delete pointers2[pointerId];

    each(pointers2, function (pointer2) {
      var x1 = Math.abs(pointer.startX - pointer2.startX);
      var y1 = Math.abs(pointer.startY - pointer2.startY);
      var x2 = Math.abs(pointer.endX - pointer2.endX);
      var y2 = Math.abs(pointer.endY - pointer2.endY);
      var z1 = Math.sqrt(x1 * x1 + y1 * y1);
      var z2 = Math.sqrt(x2 * x2 + y2 * y2);
      var ratio = (z2 - z1) / z1;

      ratios.push(ratio);
    });
  });

  ratios.sort(function (a, b) {
    return Math.abs(a) < Math.abs(b);
  });

  return ratios[0];
}

/**
 * Get a pointer from an event object.
 * @param {Object} event - The target event object.
 * @param {boolean} endOnly - Indicates if only returns the end point coordinate or not.
 * @returns {Object} The result pointer contains start and/or end point coordinates.
 */
function getPointer(_ref2, endOnly) {
  var pageX = _ref2.pageX,
      pageY = _ref2.pageY;

  var end = {
    endX: pageX,
    endY: pageY
  };

  if (endOnly) {
    return end;
  }

  return extend({
    startX: pageX,
    startY: pageY
  }, end);
}

/**
 * Get the center point coordinate of a group of pointers.
 * @param {Object} pointers - The target pointers.
 * @returns {Object} The center point coordinate.
 */
function getPointersCenter(pointers) {
  var pageX = 0;
  var pageY = 0;
  var count = 0;

  each(pointers, function (_ref3) {
    var startX = _ref3.startX,
        startY = _ref3.startY;

    pageX += startX;
    pageY += startY;
    count += 1;
  });

  pageX /= count;
  pageY /= count;

  return {
    pageX: pageX,
    pageY: pageY
  };
}

/**
 * Check if the given value is a finite number.
 */
var isFinite = Number.isFinite || WINDOW.isFinite;

/**
 * Get the max sizes in a rectangle under the given aspect ratio.
 * @param {Object} data - The original sizes.
 * @returns {Object} The result sizes.
 */
function getContainSizes(_ref4) {
  var aspectRatio = _ref4.aspectRatio,
      height = _ref4.height,
      width = _ref4.width;

  var isValidNumber = function isValidNumber(value) {
    return isFinite(value) && value > 0;
  };

  if (isValidNumber(width) && isValidNumber(height)) {
    if (height * aspectRatio > width) {
      height = width / aspectRatio;
    } else {
      width = height * aspectRatio;
    }
  } else if (isValidNumber(width)) {
    height = width / aspectRatio;
  } else if (isValidNumber(height)) {
    width = height * aspectRatio;
  }

  return {
    width: width,
    height: height
  };
}

/**
 * Get the new sizes of a rectangle after rotated.
 * @param {Object} data - The original sizes.
 * @returns {Object} The result sizes.
 */
function getRotatedSizes(_ref5) {
  var width = _ref5.width,
      height = _ref5.height,
      degree = _ref5.degree;

  degree = Math.abs(degree) % 180;

  if (degree === 90) {
    return {
      width: height,
      height: width
    };
  }

  var arc = degree % 90 * Math.PI / 180;
  var sinArc = Math.sin(arc);
  var cosArc = Math.cos(arc);
  var newWidth = width * cosArc + height * sinArc;
  var newHeight = width * sinArc + height * cosArc;

  return degree > 90 ? {
    width: newHeight,
    height: newWidth
  } : {
    width: newWidth,
    height: newHeight
  };
}

/**
 * Get a canvas which drew the given image.
 * @param {HTMLImageElement} image - The image for drawing.
 * @param {Object} imageData - The image data.
 * @param {Object} canvasData - The canvas data.
 * @param {Object} options - The options.
 * @returns {HTMLCanvasElement} The result canvas.
 */
function getSourceCanvas(image, _ref6, _ref7, _ref8) {
  var imageNaturalWidth = _ref6.naturalWidth,
      imageNaturalHeight = _ref6.naturalHeight,
      _ref6$rotate = _ref6.rotate,
      rotate = _ref6$rotate === undefined ? 0 : _ref6$rotate,
      _ref6$scaleX = _ref6.scaleX,
      scaleX = _ref6$scaleX === undefined ? 1 : _ref6$scaleX,
      _ref6$scaleY = _ref6.scaleY,
      scaleY = _ref6$scaleY === undefined ? 1 : _ref6$scaleY;
  var aspectRatio = _ref7.aspectRatio,
      naturalWidth = _ref7.naturalWidth,
      naturalHeight = _ref7.naturalHeight;
  var _ref8$fillColor = _ref8.fillColor,
      fillColor = _ref8$fillColor === undefined ? 'transparent' : _ref8$fillColor,
      _ref8$imageSmoothingE = _ref8.imageSmoothingEnabled,
      imageSmoothingEnabled = _ref8$imageSmoothingE === undefined ? true : _ref8$imageSmoothingE,
      _ref8$imageSmoothingQ = _ref8.imageSmoothingQuality,
      imageSmoothingQuality = _ref8$imageSmoothingQ === undefined ? 'low' : _ref8$imageSmoothingQ,
      _ref8$maxWidth = _ref8.maxWidth,
      maxWidth = _ref8$maxWidth === undefined ? Infinity : _ref8$maxWidth,
      _ref8$maxHeight = _ref8.maxHeight,
      maxHeight = _ref8$maxHeight === undefined ? Infinity : _ref8$maxHeight,
      _ref8$minWidth = _ref8.minWidth,
      minWidth = _ref8$minWidth === undefined ? 0 : _ref8$minWidth,
      _ref8$minHeight = _ref8.minHeight,
      minHeight = _ref8$minHeight === undefined ? 0 : _ref8$minHeight;

  var canvas = document.createElement('canvas');
  var context = canvas.getContext('2d');
  var maxSizes = getContainSizes({
    aspectRatio: aspectRatio,
    width: maxWidth,
    height: maxHeight
  });
  var minSizes = getContainSizes({
    aspectRatio: aspectRatio,
    width: minWidth,
    height: minHeight
  });
  var width = Math.min(maxSizes.width, Math.max(minSizes.width, naturalWidth));
  var height = Math.min(maxSizes.height, Math.max(minSizes.height, naturalHeight));
  var params = [-imageNaturalWidth / 2, -imageNaturalHeight / 2, imageNaturalWidth, imageNaturalHeight];

  canvas.width = normalizeDecimalNumber(width);
  canvas.height = normalizeDecimalNumber(height);
  context.fillStyle = fillColor;
  context.fillRect(0, 0, width, height);
  context.save();
  context.translate(width / 2, height / 2);
  context.rotate(rotate * Math.PI / 180);
  context.scale(scaleX, scaleY);
  context.imageSmoothingEnabled = imageSmoothingEnabled;
  context.imageSmoothingQuality = imageSmoothingQuality;
  context.drawImage.apply(context, [image].concat(toConsumableArray(params.map(function (param) {
    return Math.floor(normalizeDecimalNumber(param));
  }))));
  context.restore();
  return canvas;
}

var fromCharCode = String.fromCharCode;

/**
 * Get string from char code in data view.
 * @param {DataView} dataView - The data view for read.
 * @param {number} start - The start index.
 * @param {number} length - The read length.
 * @returns {string} The read result.
 */

function getStringFromCharCode(dataView, start, length) {
  var str = '';
  var i = void 0;

  length += start;

  for (i = start; i < length; i += 1) {
    str += fromCharCode(dataView.getUint8(i));
  }

  return str;
}

var REGEXP_DATA_URL_HEAD = /^data:.*,/;

/**
 * Transform Data URL to array buffer.
 * @param {string} dataURL - The Data URL to transform.
 * @returns {ArrayBuffer} The result array buffer.
 */
function dataURLToArrayBuffer(dataURL) {
  var base64 = dataURL.replace(REGEXP_DATA_URL_HEAD, '');
  var binary = atob(base64);
  var arrayBuffer = new ArrayBuffer(binary.length);
  var uint8 = new Uint8Array(arrayBuffer);

  each(uint8, function (value, i) {
    uint8[i] = binary.charCodeAt(i);
  });

  return arrayBuffer;
}

/**
 * Transform array buffer to Data URL.
 * @param {ArrayBuffer} arrayBuffer - The array buffer to transform.
 * @param {string} mimeType - The mime type of the Data URL.
 * @returns {string} The result Data URL.
 */
function arrayBufferToDataURL(arrayBuffer, mimeType) {
  var uint8 = new Uint8Array(arrayBuffer);
  var data = '';

  // TypedArray.prototype.forEach is not supported in some browsers.
  each(uint8, function (value) {
    data += fromCharCode(value);
  });

  return 'data:' + mimeType + ';base64,' + btoa(data);
}

/**
 * Get orientation value from given array buffer.
 * @param {ArrayBuffer} arrayBuffer - The array buffer to read.
 * @returns {number} The read orientation value.
 */
function getOrientation(arrayBuffer) {
  var dataView = new DataView(arrayBuffer);
  var orientation = void 0;
  var littleEndian = void 0;
  var app1Start = void 0;
  var ifdStart = void 0;

  // Only handle JPEG image (start by 0xFFD8)
  if (dataView.getUint8(0) === 0xFF && dataView.getUint8(1) === 0xD8) {
    var length = dataView.byteLength;
    var offset = 2;

    while (offset < length) {
      if (dataView.getUint8(offset) === 0xFF && dataView.getUint8(offset + 1) === 0xE1) {
        app1Start = offset;
        break;
      }

      offset += 1;
    }
  }

  if (app1Start) {
    var exifIDCode = app1Start + 4;
    var tiffOffset = app1Start + 10;

    if (getStringFromCharCode(dataView, exifIDCode, 4) === 'Exif') {
      var endianness = dataView.getUint16(tiffOffset);

      littleEndian = endianness === 0x4949;

      if (littleEndian || endianness === 0x4D4D /* bigEndian */) {
          if (dataView.getUint16(tiffOffset + 2, littleEndian) === 0x002A) {
            var firstIFDOffset = dataView.getUint32(tiffOffset + 4, littleEndian);

            if (firstIFDOffset >= 0x00000008) {
              ifdStart = tiffOffset + firstIFDOffset;
            }
          }
        }
    }
  }

  if (ifdStart) {
    var _length = dataView.getUint16(ifdStart, littleEndian);
    var _offset = void 0;
    var i = void 0;

    for (i = 0; i < _length; i += 1) {
      _offset = ifdStart + i * 12 + 2;

      if (dataView.getUint16(_offset, littleEndian) === 0x0112 /* Orientation */) {
          // 8 is the offset of the current tag's value
          _offset += 8;

          // Get the original orientation value
          orientation = dataView.getUint16(_offset, littleEndian);

          // Override the orientation with its default value
          dataView.setUint16(_offset, 1, littleEndian);
          break;
        }
    }
  }

  return orientation;
}

/**
 * Parse Exif Orientation value.
 * @param {number} orientation - The orientation to parse.
 * @returns {Object} The parsed result.
 */
function parseOrientation(orientation) {
  var rotate = 0;
  var scaleX = 1;
  var scaleY = 1;

  switch (orientation) {
    // Flip horizontal
    case 2:
      scaleX = -1;
      break;

    // Rotate left 180°
    case 3:
      rotate = -180;
      break;

    // Flip vertical
    case 4:
      scaleY = -1;
      break;

    // Flip vertical and rotate right 90°
    case 5:
      rotate = 90;
      scaleY = -1;
      break;

    // Rotate right 90°
    case 6:
      rotate = 90;
      break;

    // Flip horizontal and rotate right 90°
    case 7:
      rotate = 90;
      scaleX = -1;
      break;

    // Rotate left 90°
    case 8:
      rotate = -90;
      break;

    default:
  }

  return {
    rotate: rotate,
    scaleX: scaleX,
    scaleY: scaleY
  };
}

var render = {
  render: function render() {
    this.initContainer();
    this.initCanvas();
    this.initCropBox();
    this.renderCanvas();

    if (this.cropped) {
      this.renderCropBox();
    }
  },
  initContainer: function initContainer() {
    var element = this.element,
        options = this.options,
        container = this.container,
        cropper = this.cropper;


    addClass(cropper, CLASS_HIDDEN);
    removeClass(element, CLASS_HIDDEN);

    var containerData = {
      width: Math.max(container.offsetWidth, Number(options.minContainerWidth) || 200),
      height: Math.max(container.offsetHeight, Number(options.minContainerHeight) || 100)
    };

    this.containerData = containerData;

    setStyle(cropper, {
      width: containerData.width,
      height: containerData.height
    });

    addClass(element, CLASS_HIDDEN);
    removeClass(cropper, CLASS_HIDDEN);
  },


  // Canvas (image wrapper)
  initCanvas: function initCanvas() {
    var containerData = this.containerData,
        imageData = this.imageData;
    var viewMode = this.options.viewMode;

    var rotated = Math.abs(imageData.rotate) % 180 === 90;
    var naturalWidth = rotated ? imageData.naturalHeight : imageData.naturalWidth;
    var naturalHeight = rotated ? imageData.naturalWidth : imageData.naturalHeight;
    var aspectRatio = naturalWidth / naturalHeight;
    var canvasWidth = containerData.width;
    var canvasHeight = containerData.height;

    if (containerData.height * aspectRatio > containerData.width) {
      if (viewMode === 3) {
        canvasWidth = containerData.height * aspectRatio;
      } else {
        canvasHeight = containerData.width / aspectRatio;
      }
    } else if (viewMode === 3) {
      canvasHeight = containerData.width / aspectRatio;
    } else {
      canvasWidth = containerData.height * aspectRatio;
    }

    var canvasData = {
      aspectRatio: aspectRatio,
      naturalWidth: naturalWidth,
      naturalHeight: naturalHeight,
      width: canvasWidth,
      height: canvasHeight
    };

    canvasData.left = (containerData.width - canvasWidth) / 2;
    canvasData.top = (containerData.height - canvasHeight) / 2;
    canvasData.oldLeft = canvasData.left;
    canvasData.oldTop = canvasData.top;

    this.canvasData = canvasData;
    this.limited = viewMode === 1 || viewMode === 2;
    this.limitCanvas(true, true);
    this.initialImageData = extend({}, imageData);
    this.initialCanvasData = extend({}, canvasData);
  },
  limitCanvas: function limitCanvas(sizeLimited, positionLimited) {
    var options = this.options,
        containerData = this.containerData,
        canvasData = this.canvasData,
        cropBoxData = this.cropBoxData;
    var viewMode = options.viewMode;
    var aspectRatio = canvasData.aspectRatio;

    var cropped = this.cropped && cropBoxData;

    if (sizeLimited) {
      var minCanvasWidth = Number(options.minCanvasWidth) || 0;
      var minCanvasHeight = Number(options.minCanvasHeight) || 0;

      if (viewMode > 1) {
        minCanvasWidth = Math.max(minCanvasWidth, containerData.width);
        minCanvasHeight = Math.max(minCanvasHeight, containerData.height);

        if (viewMode === 3) {
          if (minCanvasHeight * aspectRatio > minCanvasWidth) {
            minCanvasWidth = minCanvasHeight * aspectRatio;
          } else {
            minCanvasHeight = minCanvasWidth / aspectRatio;
          }
        }
      } else if (viewMode > 0) {
        if (minCanvasWidth) {
          minCanvasWidth = Math.max(minCanvasWidth, cropped ? cropBoxData.width : 0);
        } else if (minCanvasHeight) {
          minCanvasHeight = Math.max(minCanvasHeight, cropped ? cropBoxData.height : 0);
        } else if (cropped) {
          minCanvasWidth = cropBoxData.width;
          minCanvasHeight = cropBoxData.height;

          if (minCanvasHeight * aspectRatio > minCanvasWidth) {
            minCanvasWidth = minCanvasHeight * aspectRatio;
          } else {
            minCanvasHeight = minCanvasWidth / aspectRatio;
          }
        }
      }

      var _getContainSizes = getContainSizes({
        aspectRatio: aspectRatio,
        width: minCanvasWidth,
        height: minCanvasHeight
      });

      minCanvasWidth = _getContainSizes.width;
      minCanvasHeight = _getContainSizes.height;


      canvasData.minWidth = minCanvasWidth;
      canvasData.minHeight = minCanvasHeight;
      canvasData.maxWidth = Infinity;
      canvasData.maxHeight = Infinity;
    }

    if (positionLimited) {
      if (viewMode) {
        var newCanvasLeft = containerData.width - canvasData.width;
        var newCanvasTop = containerData.height - canvasData.height;

        canvasData.minLeft = Math.min(0, newCanvasLeft);
        canvasData.minTop = Math.min(0, newCanvasTop);
        canvasData.maxLeft = Math.max(0, newCanvasLeft);
        canvasData.maxTop = Math.max(0, newCanvasTop);

        if (cropped && this.limited) {
          canvasData.minLeft = Math.min(cropBoxData.left, cropBoxData.left + (cropBoxData.width - canvasData.width));
          canvasData.minTop = Math.min(cropBoxData.top, cropBoxData.top + (cropBoxData.height - canvasData.height));
          canvasData.maxLeft = cropBoxData.left;
          canvasData.maxTop = cropBoxData.top;

          if (viewMode === 2) {
            if (canvasData.width >= containerData.width) {
              canvasData.minLeft = Math.min(0, newCanvasLeft);
              canvasData.maxLeft = Math.max(0, newCanvasLeft);
            }

            if (canvasData.height >= containerData.height) {
              canvasData.minTop = Math.min(0, newCanvasTop);
              canvasData.maxTop = Math.max(0, newCanvasTop);
            }
          }
        }
      } else {
        canvasData.minLeft = -canvasData.width;
        canvasData.minTop = -canvasData.height;
        canvasData.maxLeft = containerData.width;
        canvasData.maxTop = containerData.height;
      }
    }
  },
  renderCanvas: function renderCanvas(changed, transformed) {
    var canvasData = this.canvasData,
        imageData = this.imageData;


    if (transformed) {
      var _getRotatedSizes = getRotatedSizes({
        width: imageData.naturalWidth * Math.abs(imageData.scaleX || 1),
        height: imageData.naturalHeight * Math.abs(imageData.scaleY || 1),
        degree: imageData.rotate || 0
      }),
          naturalWidth = _getRotatedSizes.width,
          naturalHeight = _getRotatedSizes.height;

      var width = canvasData.width * (naturalWidth / canvasData.naturalWidth);
      var height = canvasData.height * (naturalHeight / canvasData.naturalHeight);

      canvasData.left -= (width - canvasData.width) / 2;
      canvasData.top -= (height - canvasData.height) / 2;
      canvasData.width = width;
      canvasData.height = height;
      canvasData.aspectRatio = naturalWidth / naturalHeight;
      canvasData.naturalWidth = naturalWidth;
      canvasData.naturalHeight = naturalHeight;
      this.limitCanvas(true, false);
    }

    if (canvasData.width > canvasData.maxWidth || canvasData.width < canvasData.minWidth) {
      canvasData.left = canvasData.oldLeft;
    }

    if (canvasData.height > canvasData.maxHeight || canvasData.height < canvasData.minHeight) {
      canvasData.top = canvasData.oldTop;
    }

    canvasData.width = Math.min(Math.max(canvasData.width, canvasData.minWidth), canvasData.maxWidth);
    canvasData.height = Math.min(Math.max(canvasData.height, canvasData.minHeight), canvasData.maxHeight);

    this.limitCanvas(false, true);

    canvasData.left = Math.min(Math.max(canvasData.left, canvasData.minLeft), canvasData.maxLeft);
    canvasData.top = Math.min(Math.max(canvasData.top, canvasData.minTop), canvasData.maxTop);
    canvasData.oldLeft = canvasData.left;
    canvasData.oldTop = canvasData.top;

    setStyle(this.canvas, extend({
      width: canvasData.width,
      height: canvasData.height
    }, getTransforms({
      translateX: canvasData.left,
      translateY: canvasData.top
    })));

    this.renderImage(changed);

    if (this.cropped && this.limited) {
      this.limitCropBox(true, true);
    }
  },
  renderImage: function renderImage(changed) {
    var canvasData = this.canvasData,
        imageData = this.imageData;

    var width = imageData.naturalWidth * (canvasData.width / canvasData.naturalWidth);
    var height = imageData.naturalHeight * (canvasData.height / canvasData.naturalHeight);

    extend(imageData, {
      width: width,
      height: height,
      left: (canvasData.width - width) / 2,
      top: (canvasData.height - height) / 2
    });
    setStyle(this.image, extend({
      width: imageData.width,
      height: imageData.height
    }, getTransforms(extend({
      translateX: imageData.left,
      translateY: imageData.top
    }, imageData))));

    if (changed) {
      this.output();
    }
  },
  initCropBox: function initCropBox() {
    var options = this.options,
        canvasData = this.canvasData;
    var aspectRatio = options.aspectRatio;

    var autoCropArea = Number(options.autoCropArea) || 0.8;
    var cropBoxData = {
      width: canvasData.width,
      height: canvasData.height
    };

    if (aspectRatio) {
      if (canvasData.height * aspectRatio > canvasData.width) {
        cropBoxData.height = cropBoxData.width / aspectRatio;
      } else {
        cropBoxData.width = cropBoxData.height * aspectRatio;
      }
    }

    this.cropBoxData = cropBoxData;
    this.limitCropBox(true, true);

    // Initialize auto crop area
    cropBoxData.width = Math.min(Math.max(cropBoxData.width, cropBoxData.minWidth), cropBoxData.maxWidth);
    cropBoxData.height = Math.min(Math.max(cropBoxData.height, cropBoxData.minHeight), cropBoxData.maxHeight);

    // The width/height of auto crop area must large than "minWidth/Height"
    cropBoxData.width = Math.max(cropBoxData.minWidth, cropBoxData.width * autoCropArea);
    cropBoxData.height = Math.max(cropBoxData.minHeight, cropBoxData.height * autoCropArea);
    cropBoxData.left = canvasData.left + (canvasData.width - cropBoxData.width) / 2;
    cropBoxData.top = canvasData.top + (canvasData.height - cropBoxData.height) / 2;
    cropBoxData.oldLeft = cropBoxData.left;
    cropBoxData.oldTop = cropBoxData.top;

    this.initialCropBoxData = extend({}, cropBoxData);
  },
  limitCropBox: function limitCropBox(sizeLimited, positionLimited) {
    var options = this.options,
        containerData = this.containerData,
        canvasData = this.canvasData,
        cropBoxData = this.cropBoxData,
        limited = this.limited;
    var aspectRatio = options.aspectRatio;


    if (sizeLimited) {
      var minCropBoxWidth = Number(options.minCropBoxWidth) || 0;
      var minCropBoxHeight = Number(options.minCropBoxHeight) || 0;
      var maxCropBoxWidth = Math.min(containerData.width, limited ? canvasData.width : containerData.width);
      var maxCropBoxHeight = Math.min(containerData.height, limited ? canvasData.height : containerData.height);

      // The min/maxCropBoxWidth/Height must be less than container's width/height
      minCropBoxWidth = Math.min(minCropBoxWidth, containerData.width);
      minCropBoxHeight = Math.min(minCropBoxHeight, containerData.height);

      if (aspectRatio) {
        if (minCropBoxWidth && minCropBoxHeight) {
          if (minCropBoxHeight * aspectRatio > minCropBoxWidth) {
            minCropBoxHeight = minCropBoxWidth / aspectRatio;
          } else {
            minCropBoxWidth = minCropBoxHeight * aspectRatio;
          }
        } else if (minCropBoxWidth) {
          minCropBoxHeight = minCropBoxWidth / aspectRatio;
        } else if (minCropBoxHeight) {
          minCropBoxWidth = minCropBoxHeight * aspectRatio;
        }

        if (maxCropBoxHeight * aspectRatio > maxCropBoxWidth) {
          maxCropBoxHeight = maxCropBoxWidth / aspectRatio;
        } else {
          maxCropBoxWidth = maxCropBoxHeight * aspectRatio;
        }
      }

      // The minWidth/Height must be less than maxWidth/Height
      cropBoxData.minWidth = Math.min(minCropBoxWidth, maxCropBoxWidth);
      cropBoxData.minHeight = Math.min(minCropBoxHeight, maxCropBoxHeight);
      cropBoxData.maxWidth = maxCropBoxWidth;
      cropBoxData.maxHeight = maxCropBoxHeight;
    }

    if (positionLimited) {
      if (limited) {
        cropBoxData.minLeft = Math.max(0, canvasData.left);
        cropBoxData.minTop = Math.max(0, canvasData.top);
        cropBoxData.maxLeft = Math.min(containerData.width, canvasData.left + canvasData.width) - cropBoxData.width;
        cropBoxData.maxTop = Math.min(containerData.height, canvasData.top + canvasData.height) - cropBoxData.height;
      } else {
        cropBoxData.minLeft = 0;
        cropBoxData.minTop = 0;
        cropBoxData.maxLeft = containerData.width - cropBoxData.width;
        cropBoxData.maxTop = containerData.height - cropBoxData.height;
      }
    }
  },
  renderCropBox: function renderCropBox() {
    var options = this.options,
        containerData = this.containerData,
        cropBoxData = this.cropBoxData;


    if (cropBoxData.width > cropBoxData.maxWidth || cropBoxData.width < cropBoxData.minWidth) {
      cropBoxData.left = cropBoxData.oldLeft;
    }

    if (cropBoxData.height > cropBoxData.maxHeight || cropBoxData.height < cropBoxData.minHeight) {
      cropBoxData.top = cropBoxData.oldTop;
    }

    cropBoxData.width = Math.min(Math.max(cropBoxData.width, cropBoxData.minWidth), cropBoxData.maxWidth);
    cropBoxData.height = Math.min(Math.max(cropBoxData.height, cropBoxData.minHeight), cropBoxData.maxHeight);

    this.limitCropBox(false, true);

    cropBoxData.left = Math.min(Math.max(cropBoxData.left, cropBoxData.minLeft), cropBoxData.maxLeft);
    cropBoxData.top = Math.min(Math.max(cropBoxData.top, cropBoxData.minTop), cropBoxData.maxTop);
    cropBoxData.oldLeft = cropBoxData.left;
    cropBoxData.oldTop = cropBoxData.top;

    if (options.movable && options.cropBoxMovable) {
      // Turn to move the canvas when the crop box is equal to the container
      setData(this.face, DATA_ACTION, cropBoxData.width >= containerData.width && cropBoxData.height >= containerData.height ? ACTION_MOVE : ACTION_ALL);
    }

    setStyle(this.cropBox, extend({
      width: cropBoxData.width,
      height: cropBoxData.height
    }, getTransforms({
      translateX: cropBoxData.left,
      translateY: cropBoxData.top
    })));

    if (this.cropped && this.limited) {
      this.limitCanvas(true, true);
    }

    if (!this.disabled) {
      this.output();
    }
  },
  output: function output() {
    this.preview();

    if (this.complete) {
      dispatchEvent(this.element, EVENT_CROP, this.getData());
    }
  }
};

var preview = {
  initPreview: function initPreview() {
    var crossOrigin = this.crossOrigin;
    var preview = this.options.preview;

    var url = crossOrigin ? this.crossOriginUrl : this.url;
    var image = document.createElement('img');

    if (crossOrigin) {
      image.crossOrigin = crossOrigin;
    }

    image.src = url;
    this.viewBox.appendChild(image);
    this.image2 = image;

    if (!preview) {
      return;
    }

    var previews = preview.querySelector ? [preview] : document.querySelectorAll(preview);

    this.previews = previews;

    each(previews, function (element) {
      var img = document.createElement('img');

      // Save the original size for recover
      setData(element, DATA_PREVIEW, {
        width: element.offsetWidth,
        height: element.offsetHeight,
        html: element.innerHTML
      });

      if (crossOrigin) {
        img.crossOrigin = crossOrigin;
      }

      img.src = url;

      /**
       * Override img element styles
       * Add `display:block` to avoid margin top issue
       * Add `height:auto` to override `height` attribute on IE8
       * (Occur only when margin-top <= -height)
       */
      img.style.cssText = 'display:block;' + 'width:100%;' + 'height:auto;' + 'min-width:0!important;' + 'min-height:0!important;' + 'max-width:none!important;' + 'max-height:none!important;' + 'image-orientation:0deg!important;"';

      empty(element);
      element.appendChild(img);
    });
  },
  resetPreview: function resetPreview() {
    each(this.previews, function (element) {
      var data = getData(element, DATA_PREVIEW);

      setStyle(element, {
        width: data.width,
        height: data.height
      });

      element.innerHTML = data.html;
      removeData(element, DATA_PREVIEW);
    });
  },
  preview: function preview() {
    var imageData = this.imageData,
        canvasData = this.canvasData,
        cropBoxData = this.cropBoxData;
    var cropBoxWidth = cropBoxData.width,