k9s/internal/ui/command.go

108 lines
2.0 KiB
Go

package ui
import (
"fmt"
"github.com/derailed/k9s/internal/config"
"github.com/derailed/tview"
"github.com/gdamore/tcell"
)
const defaultPrompt = "%c> %s"
// Command captures users free from command input.
type Command struct {
*tview.TextView
activated bool
icon rune
text string
styles *config.Styles
}
// NewCommand returns a new command view.
func NewCommand(styles *config.Styles) *Command {
c := Command{styles: styles, TextView: tview.NewTextView()}
c.SetWordWrap(true)
c.SetWrap(true)
c.SetDynamicColors(true)
c.SetBorder(true)
c.SetBorderPadding(0, 0, 1, 1)
c.SetBackgroundColor(styles.BgColor())
c.SetTextColor(styles.FgColor())
styles.AddListener(&c)
return &c
}
// StylesChanged notifies skin changed.
func (c *Command) StylesChanged(s *config.Styles) {
c.styles = s
c.SetBackgroundColor(s.BgColor())
c.SetTextColor(s.FgColor())
}
// InCmdMode returns true if command is active, false otherwise.
func (c *Command) InCmdMode() bool {
return c.activated
}
func (c *Command) activate() {
c.write(c.text)
}
func (c *Command) update(s string) {
if c.text == s {
return
}
c.text = s
c.Clear()
c.write(c.text)
}
func (c *Command) write(s string) {
fmt.Fprintf(c, defaultPrompt, c.icon, s)
}
// ----------------------------------------------------------------------------
// Event Listener protocol...
// BufferChanged indicates the buffer was changed.
func (c *Command) BufferChanged(s string) {
c.update(s)
}
// BufferActive indicates the buff activity changed.
func (c *Command) BufferActive(f bool, k BufferKind) {
if c.activated = f; f {
c.SetBorder(true)
c.SetTextColor(c.styles.FgColor())
c.SetBorderColor(colorFor(k))
c.icon = iconFor(k)
// c.reset()
c.activate()
} else {
c.SetBorder(false)
c.SetBackgroundColor(c.styles.BgColor())
c.Clear()
}
}
func colorFor(k BufferKind) tcell.Color {
switch k {
case CommandBuff:
return tcell.ColorAqua
default:
return tcell.ColorSeaGreen
}
}
func iconFor(k BufferKind) rune {
switch k {
case CommandBuff:
return '🐶'
default:
return '🐩'
}
}