package input

import (
	"github.com/vugu/vugu"
)

// RadioButton provides an option that the user can select.
// A group of RadioButtons is defined when they share a data binding.
type RadioButton struct {
	AttrMap vugu.AttrMap

	Bind ValueBinder // Binds the current selected key to some variable.
	Key  string      // The key that this RadioButton represents as a string.
}

func (c *RadioButton) isChecked() bool {
	if c.Bind != nil {
		return c.Bind.StringValue() == c.Key
	}

	return false
}

func (c *RadioButton) handleChange(event vugu.DOMEvent) {
	if c.Bind == nil {
		return
	}

	if event.PropBool("target", "checked") {
		c.Bind.SetStringValue(c.Key)
	}
}