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moar/twin/keys.go

70 lines
1.4 KiB
Go

package twin
type KeyCode uint16
const (
KeyEscape KeyCode = iota
KeyEnter
KeyBackspace
KeyDelete
KeyUp
KeyDown
KeyRight
KeyLeft
KeyAltUp
KeyAltDown
KeyAltRight
KeyAltLeft
KeyHome
KeyEnd
KeyPgUp
KeyPgDown
)
// Map incoming escape keystrokes to keycodes, used in consumeEncodedEvent() in
// screen.go.
//
// NOTE: If you put a single ESC character in here ('\x1b') it will be consumed
// by itself rather than as part of the sequence it belongs to, and parsing of
// all special sequences starting with ESC will break down.
//
// FIXME: Write a test preventing that from happening.
var escapeSequenceToKeyCode = map[string]KeyCode{
// NOTE: Please keep this list in the same order as the KeyCode const()
// section above.
// KeyEscape intentionally left out because it's too short, see comment
// above.
// KeyEnter intentionally left out because it's too short, see comment
// above.
"\x7f": KeyBackspace,
"\x1b[3~": KeyDelete,
"\x1b[A": KeyUp,
"\x1b[B": KeyDown,
"\x1b[C": KeyRight,
"\x1b[D": KeyLeft,
// Ref: https://github.com/walles/moar/issues/138#issuecomment-1579199274
"\x1bOA": KeyUp,
"\x1bOB": KeyDown,
"\x1bOC": KeyRight,
"\x1bOD": KeyLeft,
"\x1b\x1b[A": KeyAltUp, // Alt + up arrow
"\x1b\x1b[B": KeyAltDown, // Alt + down arrow
"\x1b\x1b[C": KeyAltRight, // Alt + right arrow
"\x1b\x1b[D": KeyAltLeft, // Alt + left arrow
"\x1b[H": KeyHome,
"\x1b[F": KeyEnd,
"\x1b[5~": KeyPgUp,
"\x1b[6~": KeyPgDown,
}