| onBeforeClear | fires before the user clears the list of files to upload (clicks the button  ) |
| onBeforeFileAdd | fires when the user adds a file to the upload queue |
| onBeforeFileRemove | fires before the user removes a single file from the list of files to upload (clicks the button  ) |
| onBeforeFileUpload | fires before file uploading has started |
| onClear | when the user clears the list of files to upload (clicks on button ) |
| onFileAdd | fires when the user adds a file to the upload queue |
| onFileRemove | fires when the user removes single file from the list of files to upload (clicks the button ) |
| onUploadCancel | fires when the user cancels uploading of a file (clicks the button  ). |
| onUploadComplete | fires when all files from the list have been uploaded to the server |
| onUploadFail | fires when the file upload has failed |
| onUploadFile | fires when a single file from the list has been uploaded to the server |