github.com/kolbycrouch/elvish@v0.14.1-0.20210614162631-215b9ac1c423/pkg/cli/term/setup_windows.go (about)

     1  package term
     2  
     3  import (
     4  	"os"
     5  
     6  	"golang.org/x/sys/windows"
     7  	"src.elv.sh/pkg/diag"
     8  )
     9  
    10  const (
    11  	wantedInMode = windows.ENABLE_WINDOW_INPUT |
    12  		windows.ENABLE_MOUSE_INPUT | windows.ENABLE_PROCESSED_INPUT
    13  	wantedOutMode = windows.ENABLE_PROCESSED_OUTPUT |
    14  		windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING
    15  	wantedGlobalOutMode = windows.ENABLE_PROCESSED_OUTPUT |
    16  		windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING
    17  )
    18  
    19  func setup(in, out *os.File) (func() error, error) {
    20  	hIn := windows.Handle(in.Fd())
    21  	hOut := windows.Handle(out.Fd())
    22  
    23  	var oldInMode, oldOutMode uint32
    24  	err := windows.GetConsoleMode(hIn, &oldInMode)
    25  	if err != nil {
    26  		return nil, err
    27  	}
    28  	err = windows.GetConsoleMode(hOut, &oldOutMode)
    29  	if err != nil {
    30  		return nil, err
    31  	}
    32  
    33  	errSetIn := windows.SetConsoleMode(hIn, wantedInMode)
    34  	errSetOut := windows.SetConsoleMode(hOut, wantedOutMode)
    35  	errVT := setupVT(out)
    36  
    37  	return func() error {
    38  		return diag.Errors(
    39  			restoreVT(out),
    40  			windows.SetConsoleMode(hOut, oldOutMode),
    41  			windows.SetConsoleMode(hIn, oldInMode))
    42  	}, diag.Errors(errSetIn, errSetOut, errVT)
    43  }
    44  
    45  func setupGlobal() func() {
    46  	hOut := windows.Handle(os.Stderr.Fd())
    47  	var oldOutMode uint32
    48  	err := windows.GetConsoleMode(hOut, &oldOutMode)
    49  	if err != nil {
    50  		return func() {}
    51  	}
    52  	err = windows.SetConsoleMode(hOut, wantedGlobalOutMode)
    53  	if err != nil {
    54  		return func() {}
    55  	}
    56  	return func() { windows.SetConsoleMode(hOut, oldOutMode) }
    57  }
    58  
    59  func sanitize(in, out *os.File) {}