public function handleKey()
{
ncurses_getyx(STDSCR, $cury, $curx);
// Read one character
$c = ncurses_getch();
if ($c == NCURSES_KEY_RETURN) {
$in = trim($this->getInput());
// Split input to command and arguments
$command = explode(' ', $in, 2);
$command[0] = strtolower($command[0]);
// Empty command - user just pressed enter
if (strlen($command[0]) == 0) {
return;
}
// Command has been given, so:
// Add to history, clear the prompt, disable scrollback
array_push($this->history, $in);
$this->drawPrompt();
$this->historyScrollback = -1;
// Add to output so we can see what we are doing
$this->addOutput('> ' . $in);
// Command not found
if (!array_key_exists($command[0], $this->commands)) {
$this->addOutput('Unknown command: ' . $command[0]);
return;
}
// Run the command
$this->commands[$command[0]]($this, $command[1]);
} else {
if ($c == NCURSES_KEY_LEFT) {
// Move the cursor left
ncurses_move($cury, $curx - 1);
} else {
if ($c == NCURSES_KEY_RIGHT) {
// Move the cursor right
ncurses_move($cury, $curx + 1);
} else {
if ($c == NCURSES_KEY_UP) {
// If the user is not browsing history, start with the last element + 1
if ($this->historyScrollback == -1) {
// There is no history - we can't open it
if (count($this->history) == 0) {
return;
}
$this->historyScrollback = count($this->history);
}
// Move to a previous element
$this->historyScrollback--;
// The user scrolled beyond the list - move to the first item
if ($this->historyScrollback < 0) {
$this->historyScrollback = 0;
}
$this->drawPrompt($this->history[$this->historyScrollback]);
} else {
if ($c == NCURSES_KEY_DOWN) {
// User is not browsing the history - we can't go lower
if ($this->historyScrollback == -1) {
return;
}
$this->historyScrollback++;
// Disable scrollback when the user went outside the list
if ($this->historyScrollback >= count($this->history)) {
$this->historyScrollback = -1;
$this->drawPrompt();
return;
}
$this->drawPrompt($this->history[$this->historyScrollback]);
} else {
if ($c == NCURSES_KEY_BACKSPACE) {
// Remove one character to the left of the cursor
ncurses_mvdelch($cury, $curx - 1);
} else {
if ($c == NCURSES_KEY_DC) {
// Remove one character at the cursor
ncurses_delch($c);
} else {
if (ctype_print($c)) {
// Just print out an ordinary character
ncurses_insch($c);
ncurses_move($cury, $curx + 1);
}
}
}
}
}
}
}
}
$this->checkCursorBounds();
ncurses_refresh();
}
/**
* @param $char
* @return $this
*/
public function insertChar($char)
{
ncurses_insch($char);
return $this;
}
