138 lines
3.1 KiB
PHP
138 lines
3.1 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Console;
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use Symfony\Component\Console\Output\OutputInterface;
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/**
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* @author Pierre du Plessis <pdples@gmail.com>
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*/
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class Cursor
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{
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private $output;
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private $input;
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public function __construct(OutputInterface $output, $input = STDIN)
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{
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$this->output = $output;
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$this->input = $input;
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}
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public function moveUp(int $lines = 1)
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{
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$this->output->write(sprintf("\x1b[%dA", $lines));
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}
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public function moveDown(int $lines = 1)
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{
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$this->output->write(sprintf("\x1b[%dB", $lines));
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}
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public function moveRight(int $columns = 1)
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{
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$this->output->write(sprintf("\x1b[%dC", $columns));
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}
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public function moveLeft(int $columns = 1)
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{
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$this->output->write(sprintf("\x1b[%dD", $columns));
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}
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public function moveToColumn(int $column)
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{
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$this->output->write(sprintf("\x1b[%dG", $column));
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}
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public function moveToPosition(int $column, int $row)
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{
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$this->output->write(sprintf("\x1b[%d;%dH", $row + 1, $column));
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}
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public function savePosition()
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{
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$this->output->write("\x1b7");
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}
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public function restorePosition()
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{
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$this->output->write("\x1b8");
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}
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public function hide()
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{
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$this->output->write("\x1b[?25l");
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}
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public function show()
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{
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$this->output->write("\x1b[?25h\x1b[?0c");
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}
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/**
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* Clears all the output from the current line.
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*/
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public function clearLine(bool $fromCurrentPosition = false)
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{
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if (true === $fromCurrentPosition) {
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$this->output->write("\x1b[K");
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} else {
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$this->output->write("\x1b[2K");
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}
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}
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/**
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* Clears all the output from the cursors' current position to the end of the screen.
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*/
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public function clearOutput()
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{
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$this->output->write("\x1b[0J", false);
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}
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/**
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* Clears the entire screen.
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*/
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public function clearScreen()
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{
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$this->output->write("\x1b[2J", false);
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}
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/**
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* Returns the current cursor position as x,y coordinates.
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*/
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public function getCurrentPosition(): array
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{
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static $isTtySupported;
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if (null === $isTtySupported && \function_exists('proc_open')) {
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$isTtySupported = (bool) @proc_open('echo 1 >/dev/null', [['file', '/dev/tty', 'r'], ['file', '/dev/tty', 'w'], ['file', '/dev/tty', 'w']], $pipes);
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}
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if (!$isTtySupported) {
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return [1, 1];
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}
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$sttyMode = shell_exec('stty -g');
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shell_exec('stty -icanon -echo');
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@fwrite($this->input, "\033[6n");
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$code = trim(fread($this->input, 1024));
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shell_exec(sprintf('stty %s', $sttyMode));
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sscanf($code, "\033[%d;%dR", $row, $col);
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return [$col, $row];
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}
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}
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