1 files changed, 5 insertions, 103 deletions
diff --git a/vendor/github.com/gdamore/tcell/v2/tscreen_unix.go b/vendor/github.com/gdamore/tcell/v2/tscreen_unix.go
index 60bbcfdae..1eb7504a7 100644
--- a/vendor/github.com/gdamore/tcell/v2/tscreen_unix.go
+++ b/vendor/github.com/gdamore/tcell/v2/tscreen_unix.go
@@ -16,114 +16,16 @@
 
 package tcell
 
-import (
-	"errors"
-	"os"
-	"os/signal"
-	"syscall"
-
-	"golang.org/x/term"
-)
-
-// engage is used to place the terminal in raw mode and establish screen size, etc.
-// Thing of this is as tcell "engaging" the clutch, as it's going to be driving the
-// terminal interface.
-func (t *tScreen) engage() error {
-	t.Lock()
-	defer t.Unlock()
-	if t.stopQ != nil {
-		return errors.New("already engaged")
-	}
-	if _, err := term.MakeRaw(int(t.in.Fd())); err != nil {
-		return err
-	}
-	if w, h, err := term.GetSize(int(t.in.Fd())); err == nil && w != 0 && h != 0 {
-		t.cells.Resize(w, h)
-	}
-	stopQ := make(chan struct{})
-	t.stopQ = stopQ
-	t.nonBlocking(false)
-	t.enableMouse(t.mouseFlags)
-	t.enablePasting(t.pasteEnabled)
-	signal.Notify(t.sigwinch, syscall.SIGWINCH)
-
-	ti := t.ti
-	t.TPuts(ti.EnterCA)
-	t.TPuts(ti.HideCursor)
-	t.TPuts(ti.EnableAcs)
-	t.TPuts(ti.Clear)
-
-	t.wg.Add(2)
-	go t.inputLoop(stopQ)
-	go t.mainLoop(stopQ)
-	return nil
-}
-
-// disengage is used to release the terminal back to support from the caller.
-// Think of this as tcell disengaging the clutch, so that another application
-// can take over the terminal interface.  This restores the TTY mode that was
-// present when the application was first started.
-func (t *tScreen) disengage() {
-
-	t.Lock()
-	t.nonBlocking(true)
-	stopQ := t.stopQ
-	t.stopQ = nil
-	close(stopQ)
-	t.Unlock()
-
-	// wait for everything to shut down
-	t.wg.Wait()
-
-	signal.Stop(t.sigwinch)
-
-	// put back normal blocking mode
-	t.nonBlocking(false)
-
-	// shutdown the screen and disable special modes (e.g. mouse and bracketed paste)
-	ti := t.ti
-	t.cells.Resize(0, 0)
-	t.TPuts(ti.ShowCursor)
-	t.TPuts(ti.AttrOff)
-	t.TPuts(ti.Clear)
-	t.TPuts(ti.ExitCA)
-	t.TPuts(ti.ExitKeypad)
-	t.enableMouse(0)
-	t.enablePasting(false)
-
-	// restore the termios that we were started with
-	_ = term.Restore(int(t.in.Fd()), t.saved)
-
-}
-
 // initialize is used at application startup, and sets up the initial values
 // including file descriptors used for terminals and saving the initial state
 // so that it can be restored when the application terminates.
 func (t *tScreen) initialize() error {
 	var err error
-	t.out = os.Stdout
-	t.in = os.Stdin
-	t.saved, err = term.GetState(int(os.Stdin.Fd()))
-	if err != nil {
-		return err
+	if t.tty == nil {
+		t.tty, err = NewDevTty()
+		if err != nil {
+			return err
+		}
 	}
 	return nil
 }
-
-// finalize is used to at application shutdown, and restores the terminal
-// to it's initial state.  It should not be called more than once.
-func (t *tScreen) finalize() {
-
-	t.disengage()
-}
-
-// getWinSize is called to obtain the terminal dimensions.
-func (t *tScreen) getWinSize() (int, int, error) {
-	return term.GetSize(int(t.in.Fd()))
-}
-
-// Beep emits a beep to the terminal.
-func (t *tScreen) Beep() error {
-	t.writeString(string(byte(7)))
-	return nil
-}