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package decor
var (
_ Decorator = onAbortWrapper{}
_ Wrapper = onAbortWrapper{}
_ Decorator = onAbortMetaWrapper{}
_ Wrapper = onAbortMetaWrapper{}
)
// OnAbort wrap decorator.
// Displays provided message on abort event.
// Has no effect if bar.Abort(true) is called.
//
// `decorator` Decorator to wrap
// `message` message to display
func OnAbort(decorator Decorator, message string) Decorator {
if decorator == nil {
return nil
}
return onAbortWrapper{decorator, message}
}
type onAbortWrapper struct {
Decorator
msg string
}
func (d onAbortWrapper) Decor(s Statistics) (string, int) {
if s.Aborted {
return d.Format(d.msg)
}
return d.Decorator.Decor(s)
}
func (d onAbortWrapper) Unwrap() Decorator {
return d.Decorator
}
// OnAbortMeta wrap decorator.
// Provided fn is supposed to wrap output of given decorator
// with meta information like ANSI escape codes for example.
// Primary usage intention is to set SGR display attributes.
//
// `decorator` Decorator to wrap
// `fn` func to apply meta information
func OnAbortMeta(decorator Decorator, fn func(string) string) Decorator {
if decorator == nil {
return nil
}
return onAbortMetaWrapper{decorator, fn}
}
type onAbortMetaWrapper struct {
Decorator
fn func(string) string
}
func (d onAbortMetaWrapper) Decor(s Statistics) (string, int) {
if s.Completed {
str, width := d.Decorator.Decor(s)
return d.fn(str), width
}
return d.Decorator.Decor(s)
}
func (d onAbortMetaWrapper) Unwrap() Decorator {
return d.Decorator
}
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