| Attributes |
| Name | Required | Request-time | Type | Description |
| draggableImage | false | true | java.lang.String | A CSS class to specify the direction of the image drag. Possible values are vertical, horizontal, both, or none. |
| fileEntryId | true | true | java.lang.String | The ID of a previously selected file entry. |
| itemSelectorEventName | true | true | java.lang.String | The name of the event that the item selector dialog throws, in order to allow the image selector tag capture and show the selected image. |
| itemSelectorURL | true | true | java.lang.String | The URL of the selection dialog to be shown on the user clicking the select button. |
| maxFileSize | false | true | java.lang.String | The maximum file size that the backend can handle. |
| paramName | false | true | java.lang.String | A prefix to the parameters to be sent to the server. |
| uploadURL | true | true | java.lang.String | The target URL for the new files that are uploaded. |
| validExtensions | false | true | java.lang.String | A list of valid extensions that the server can handle. |