类型 AttachmentData

type AttachmentData struct {
	Name        string
	Description string
	Kind        AttachmentKind
	ResourceID  uint64
	// Icon, when it has any commands, is painted in the media square instead of the
	// placeholder shape of Kind: a file-type or brand glyph the application owns.
	Icon        ui.Icon
	State       AttachmentState
	Size        AttachmentSize
	Orientation AttachmentOrientation
	// Progress is the fraction, 0 to 1, of an Uploading attachment that has been sent;
	// it draws the bar along the bottom edge. The zero value draws no bar, and the
	// other states have no determinate progress to show.
	Progress float32
}