text: /**
   * DevExtreme (ui/html_editor/modules/dropImage.js)
   * Version: 19.2.5
   * Build date: Mon Dec 16 2019
   *
   * Copyright (c) 2012 - 2019 Developer Express Inc. ALL RIGHTS RESERVED
   * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
   */
  "use strict";
  Object.defineProperty(exports, "__esModule", {
      value: true
  });
  var _createClass = function() {
      function defineProperties(target, props) {
          for (var i = 0; i < props.length; i++) {
              var descriptor = props[i];
              descriptor.enumerable = descriptor.enumerable || false;
              descriptor.configurable = true;
              if ("value" in descriptor) {
                  descriptor.writable = true
              }
              Object.defineProperty(target, descriptor.key, descriptor)
          }
      }
      return function(Constructor, protoProps, staticProps) {
          if (protoProps) {
              defineProperties(Constructor.prototype, protoProps)
          }
          if (staticProps) {
              defineProperties(Constructor, staticProps)
          }
          return Constructor
      }
  }();
  var _quill_importer = require("../quill_importer");
  var _events_engine = require("../../../events/core/events_engine");
  var _events_engine2 = _interopRequireDefault(_events_engine);
  var _utils = require("../../../events/utils");
  var _iterator = require("../../../core/utils/iterator");
  var _browser = require("../../../core/utils/browser");
  var _browser2 = _interopRequireDefault(_browser);
  var _window = require("../../../core/utils/window");
  
  function _interopRequireDefault(obj) {
      return obj && obj.__esModule ? obj : {
          "default": obj
      }
  }
  
  function _classCallCheck(instance, Constructor) {
      if (!(instance instanceof Constructor)) {
          throw new TypeError("Cannot call a class as a function")
      }
  }
  
  function _possibleConstructorReturn(self, call) {
      if (!self) {
          throw new ReferenceError("this hasn't been initialised - super() hasn't been called")
      }
      return call && ("object" === typeof call || "function" === typeof call) ? call : self
  }
  
  function _inherits(subClass, superClass) {
      if ("function" !== typeof superClass && null !== superClass) {
          throw new TypeError("Super expression must either be null or a function, not " + typeof superClass)
      }
      subClass.prototype = Object.create(superClass && superClass.prototype, {
          constructor: {
              value: subClass,
              enumerable: false,
              writable: true,
              configurable: true
          }
      });
      if (superClass) {
          Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass
      }
  }
  var BaseModule = (0, _quill_importer.getQuill)().import("core/module");
  var DropImageModule = function(_BaseModule) {
      _inherits(DropImageModule, _BaseModule);
  
      function DropImageModule(quill, options) {
          _classCallCheck(this, DropImageModule);
          var _this = _possibleConstructorReturn(this, (DropImageModule.__proto__ || Object.getPrototypeOf(DropImageModule)).call(this, quill, options));
          _this.editorInstance = options.editorInstance;
          var widgetName = _this.editorInstance.NAME;
          _events_engine2.default.on(_this.quill.root, (0, _utils.addNamespace)("dragover", widgetName), _this._dragOverHandler.bind(_this));
          _events_engine2.default.on(_this.quill.root, (0, _utils.addNamespace)("drop", widgetName), _this._dropHandler.bind(_this));
          _events_engine2.default.on(_this.quill.root, (0, _utils.addNamespace)("paste", widgetName), _this._pasteHandler.bind(_this));
          return _this
      }
      _createClass(DropImageModule, [{
          key: "_dragOverHandler",
          value: function(e) {
              if (_browser2.default.msie) {
                  e.preventDefault()
              }
          }
      }, {
          key: "_dropHandler",
          value: function(e) {
              var dataTransfer = e.originalEvent.dataTransfer;
              var hasFiles = dataTransfer && dataTransfer.files && dataTransfer.files.length;
              e.preventDefault();
              if (hasFiles) {
                  this._getImage(dataTransfer.files, this._addImage.bind(this))
              }
          }
      }, {
          key: "_pasteHandler",
          value: function(_ref) {
              var _this2 = this;
              var originalEvent = _ref.originalEvent;
              var clipboardData = originalEvent.clipboardData;
              if (!clipboardData) {
                  return
              }
              var hasDataItems = clipboardData.items && clipboardData.items.length;
              var isHtmlData = clipboardData.getData("text/html");
              if (!isHtmlData && hasDataItems) {
                  this._getImage(clipboardData.items, function(imageData) {
                      if (_browser2.default.mozilla) {
                          return
                      }
                      if (_browser2.default.msie) {
                          setTimeout(function() {
                              _this2._addImage(imageData)
                          })
                      } else {
                          _this2._addImage(imageData)
                      }
                  })
              }
          }
      }, {
          key: "_isImage",
          value: function(file) {
              return !!file.type.match(/^image\/(a?png|bmp|gif|p?jpe?g|svg|vnd\.microsoft\.icon|webp)/i)
          }
      }, {
          key: "_getImage",
          value: function(files, callback) {
              var _this3 = this;
              var window = (0, _window.getWindow)();
              (0, _iterator.each)(files, function(index, file) {
                  if (!_this3._isImage(file)) {
                      return
                  }
                  var reader = new window.FileReader;
                  reader.onload = function(_ref2) {
                      var target = _ref2.target;
                      callback(target.result)
                  };
                  var readableFile = file.getAsFile ? file.getAsFile() : file;
                  if (readableFile instanceof window.Blob) {
                      reader.readAsDataURL(readableFile)
                  }
              })
          }
      }, {
          key: "_addImage",
          value: function(data) {
              var selection = this.quill.getSelection();
              var pasteIndex = selection ? selection.index : this.quill.getLength();
              this.quill.insertEmbed(pasteIndex, "extendedImage", data, "user")
          }
      }]);
      return DropImageModule
  }(BaseModule);
  exports.default = DropImageModule;
  