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diff --git a/library/cropperjs/src/js/constants.js b/library/cropperjs/src/js/constants.js
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+++ b/library/cropperjs/src/js/constants.js
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+export const WINDOW = typeof window !== 'undefined' ? window : {};
+export const NAMESPACE = 'cropper';
+
+// Actions
+export const ACTION_ALL = 'all';
+export const ACTION_CROP = 'crop';
+export const ACTION_MOVE = 'move';
+export const ACTION_ZOOM = 'zoom';
+export const ACTION_EAST = 'e';
+export const ACTION_WEST = 'w';
+export const ACTION_SOUTH = 's';
+export const ACTION_NORTH = 'n';
+export const ACTION_NORTH_EAST = 'ne';
+export const ACTION_NORTH_WEST = 'nw';
+export const ACTION_SOUTH_EAST = 'se';
+export const ACTION_SOUTH_WEST = 'sw';
+
+// Classes
+export const CLASS_CROP = `${NAMESPACE}-crop`;
+export const CLASS_DISABLED = `${NAMESPACE}-disabled`;
+export const CLASS_HIDDEN = `${NAMESPACE}-hidden`;
+export const CLASS_HIDE = `${NAMESPACE}-hide`;
+export const CLASS_INVISIBLE = `${NAMESPACE}-invisible`;
+export const CLASS_MODAL = `${NAMESPACE}-modal`;
+export const CLASS_MOVE = `${NAMESPACE}-move`;
+
+// Data keys
+export const DATA_ACTION = 'action';
+export const DATA_PREVIEW = 'preview';
+
+// Drag modes
+export const DRAG_MODE_CROP = 'crop';
+export const DRAG_MODE_MOVE = 'move';
+export const DRAG_MODE_NONE = 'none';
+
+// Events
+export const EVENT_CROP = 'crop';
+export const EVENT_CROP_END = 'cropend';
+export const EVENT_CROP_MOVE = 'cropmove';
+export const EVENT_CROP_START = 'cropstart';
+export const EVENT_DBLCLICK = 'dblclick';
+export const EVENT_ERROR = 'error';
+export const EVENT_LOAD = 'load';
+export const EVENT_POINTER_DOWN = WINDOW.PointerEvent ? 'pointerdown' : 'touchstart mousedown';
+export const EVENT_POINTER_MOVE = WINDOW.PointerEvent ? 'pointermove' : 'touchmove mousemove';
+export const EVENT_POINTER_UP = WINDOW.PointerEvent ? 'pointerup pointercancel' : 'touchend touchcancel mouseup';
+export const EVENT_READY = 'ready';
+export const EVENT_RESIZE = 'resize';
+export const EVENT_WHEEL = 'wheel mousewheel DOMMouseScroll';
+export const EVENT_ZOOM = 'zoom';
+
+// RegExps
+export const REGEXP_ACTIONS = /^(?:e|w|s|n|se|sw|ne|nw|all|crop|move|zoom)$/;
+export const REGEXP_DATA_URL = /^data:/;
+export const REGEXP_DATA_URL_JPEG = /^data:image\/jpeg;base64,/;
+export const REGEXP_TAG_NAME = /^(?:img|canvas)$/i;