Page History

// release 2.2.0
{
	editor: SynapEditor,
	eventType:  'beforeUploadImage',
	cancelable: true,
	returnValue: null,
	fileName: 'filename.png', // Name of the file to upload
	isBackground: false // Whether the image is a background image
}

// release 2.2.1 or above
{
	editor: SynapEditor,
	eventType:  'beforeUploadImage',
	cancelable: true,
	returnValue: null,
	fileType: 'image', // [2.2.1] File type
	fileName: 'filename.png',
	isBackground: false,
	uploadCount: 0 // [2.2.1] Number of files being uploaded (the number of files to be uploaded whose upload is not completed yet)
}

// release 2.14.6 or above
{
	editor: SynapEditor,
	eventType:  'beforeUploadImage',
	cancelable: true,
	returnValue: null,
	fileType: 'image', 
	fileName: 'filename.png',
    fileSize: 100, // [2.14.6] File size (Unit: Byte)
	isBackground: false,
	uploadCount: 0
}