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Restore pending input after reading the cursor position

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This commit is contained in:
Emmanuel BENOîT 2022-10-29 10:03:07 +02:00
parent a595d71cbd
commit b9e5e65654
1 changed files with 35 additions and 16 deletions
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51
gprompt.pl
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@ -310,6 +310,35 @@ sub set_color
return tput_sequence( "seta$type $index" );
}
sub flush_term_and_read_pos($)
{
my $ttyIn = shift;
my ($input, $col, $line) = ("", "", "");
my @pending = ();
my $state = 0;
while (sysread $ttyIn, $input, 1) {
if ($state == 0) {
if ($input eq "\033") {
$state = 1;
} else {
push @pending, $input;
}
} elsif ($state == 1) {
$state = 2 if $input eq '[';
} elsif ($state == 2) {
if ($input eq ';') {
$state = 3;
} else {
$line .= $input;
}
} elsif ($state == 3) {
last if $input eq 'R';
$col .= $input;
}
}
return $col, $line, @pending;
}
sub get_cursor_pos
{
local $| = 1;
@ -327,23 +356,12 @@ sub get_cursor_pos
# Read position
syswrite $ttyOut, "\033[6n", 4;
my ($input, $col, $line) = ("", "", "");
my $state = 0;
while (sysread $ttyIn, $input, 1) {
if ($state == 0) {
$state = 1 if $input eq '[';
} elsif ($state == 1) {
if ($input eq ';') {
$state = 2;
} else {
$line .= $input;
}
} elsif ($state == 2) {
last if $input eq 'R';
$col .= $input;
}
}
my ($col, $line, @pending) = flush_term_and_read_pos $ttyIn;
# Restore input using TIOCSTI (0x5412)
foreach my $pByte (@pending) {
ioctl $ttyIn, 0x5412, $pByte;
}
# Enable cooked mode
$term->setlflag($oTerm);
$term->setcc(VTIME, 0);
@ -652,6 +670,7 @@ sub gen_empty_line
my $nl;
my $out = "";
if ($lel > 1) {
sleep 1;
my ($line, $col) = get_cursor_pos;
$nl = ( $lel == 2 && $line != 1 ) || ( $lel == 3 && $col != 1 );
if ( $lel == 3 && $col != 1 ) {