// +build !windows
package tui
import (
"fmt" "os" "os/exec" "strings" "syscall" "github.com/junegunn/fzf/src/util" "golang.org/x/term"
)
func IsLightRendererSupported() bool {
return true
}
func (r *LightRenderer) defaultTheme() *ColorTheme {
if strings.Contains(os.Getenv("TERM"), "256") { return Dark256 } colors, err := exec.Command("tput", "colors").Output() if err == nil && atoi(strings.TrimSpace(string(colors)), 16) > 16 { return Dark256 } return Default16
}
func (r *LightRenderer) fd() int {
return int(r.ttyin.Fd())
}
func (r *LightRenderer) initPlatform() error {
fd := r.fd() origState, err := term.GetState(fd) if err != nil { return err } r.origState = origState term.MakeRaw(fd) return nil
}
func (r *LightRenderer) closePlatform() {
// NOOP
}
func openTtyIn() *os.File {
in, err := os.OpenFile(consoleDevice, syscall.O_RDONLY, 0) if err != nil { tty := ttyname() if len(tty) > 0 { if in, err := os.OpenFile(tty, syscall.O_RDONLY, 0); err == nil { return in } } fmt.Fprintln(os.Stderr, "Failed to open "+consoleDevice) os.Exit(2) } return in
}
func (r *LightRenderer) setupTerminal() {
term.MakeRaw(r.fd())
}
func (r *LightRenderer) restoreTerminal() {
term.Restore(r.fd(), r.origState)
}
func (r *LightRenderer) updateTerminalSize() {
width, height, err := term.GetSize(r.fd()) if err == nil { r.width = width r.height = r.maxHeightFunc(height) } else { r.width = getEnv("COLUMNS", defaultWidth) r.height = r.maxHeightFunc(getEnv("LINES", defaultHeight)) }
}
func (r *LightRenderer) findOffset() (row int, col int) {
r.csi("6n") r.flush() bytes := []byte{} for tries := 0; tries < offsetPollTries; tries++ { bytes = r.getBytesInternal(bytes, tries > 0) offsets := offsetRegexp.FindSubmatch(bytes) if len(offsets) > 3 { // Add anything we skipped over to the input buffer r.buffer = append(r.buffer, offsets[1]...) return atoi(string(offsets[2]), 0) - 1, atoi(string(offsets[3]), 0) - 1 } } return -1, -1
}
func (r *LightRenderer) getch(nonblock bool) (int, bool) {
b := make([]byte, 1) fd := r.fd() util.SetNonblock(r.ttyin, nonblock) _, err := util.Read(fd, b) if err != nil { return 0, false } return int(b[0]), true
}