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81 lines
2.2 KiB
Go
81 lines
2.2 KiB
Go
//go:build windows
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// +build windows
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package twin
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import (
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"fmt"
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"os"
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"syscall"
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"golang.org/x/sys/windows"
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"golang.org/x/term"
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)
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func (screen *UnixScreen) setupSigwinchNotification() {
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screen.sigwinch = make(chan int, 1)
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screen.sigwinch <- 0 // Trigger initial screen size query
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// No SIGWINCH handling on Windows for now, contributions welcome, see
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// sigwinch.go for inspiration.
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}
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func (screen *UnixScreen) setupTtyInTtyOut() error {
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in, err := syscall.Open("CONIN$", syscall.O_RDWR, 0)
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if err != nil {
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return fmt.Errorf("failed to open CONIN$: %w", err)
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}
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screen.ttyIn = os.NewFile(uintptr(in), "/dev/tty")
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// Set input stream to raw mode
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stdin := windows.Handle(screen.ttyIn.Fd())
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err = windows.GetConsoleMode(stdin, &screen.oldTtyInMode)
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if err != nil {
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return fmt.Errorf("failed to get stdin console mode: %w", err)
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}
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err = windows.SetConsoleMode(stdin, screen.oldTtyInMode|windows.ENABLE_VIRTUAL_TERMINAL_INPUT)
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if err != nil {
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return fmt.Errorf("failed to set stdin console mode: %w", err)
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}
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screen.oldTerminalState, err = term.MakeRaw(int(screen.ttyIn.Fd()))
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if err != nil {
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screen.restoreTtyInTtyOut() // Error intentionally ignored, report the first one only
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return fmt.Errorf("failed to set raw mode: %w", err)
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}
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screen.ttyOut = os.Stdout
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// Enable console colors, from: https://stackoverflow.com/a/52579002
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stdout := windows.Handle(screen.ttyOut.Fd())
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err = windows.GetConsoleMode(stdout, &screen.oldTtyOutMode)
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if err != nil {
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screen.restoreTtyInTtyOut() // Error intentionally ignored, report the first one only
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return fmt.Errorf("failed to get stdout console mode: %w", err)
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}
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err = windows.SetConsoleMode(stdout, screen.oldTtyOutMode|windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING)
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if err != nil {
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screen.restoreTtyInTtyOut() // Error intentionally ignored, report the first one only
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return fmt.Errorf("failed to set stdout console mode: %w", err)
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}
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return nil
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}
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func (screen *UnixScreen) restoreTtyInTtyOut() error {
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stdin := windows.Handle(screen.ttyIn.Fd())
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err := windows.SetConsoleMode(stdin, screen.oldTtyInMode)
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if err != nil {
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return err
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}
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stdout := windows.Handle(screen.ttyOut.Fd())
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err = windows.SetConsoleMode(stdout, screen.oldTtyOutMode)
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if err != nil {
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return err
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}
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return nil
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}
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