Enumeration Members
CLEAR_BUTTON_CLICKED
CLEAR_BUTTON_CLICKED: "fileUploadWithPreview:clearButtonClicked"
IMAGE_ADDED
IMAGE_ADDED: "fileUploadWithPreview:imagesAdded"
IMAGE_DELETED
IMAGE_DELETED: "fileUploadWithPreview:imageDeleted"
IMAGE_MULTI_ITEM_CLICKED
IMAGE_MULTI_ITEM_CLICKED: "fileUploadWithPreview:imageMultiItemClicked"