Cursor.php
| 1 | <?php |
| 2 | |
| 3 | /* |
| 4 | * This file is part of the Symfony package. |
| 5 | * |
| 6 | * (c) Fabien Potencier <fabien@symfony.com> |
| 7 | * |
| 8 | * For the full copyright and license information, please view the LICENSE |
| 9 | * file that was distributed with this source code. |
| 10 | */ |
| 11 | namespace IAWP_SCOPED\Symfony\Component\Console; |
| 12 | |
| 13 | use IAWP_SCOPED\Symfony\Component\Console\Output\OutputInterface; |
| 14 | /** |
| 15 | * @author Pierre du Plessis <pdples@gmail.com> |
| 16 | */ |
| 17 | final class Cursor |
| 18 | { |
| 19 | private $output; |
| 20 | private $input; |
| 21 | /** |
| 22 | * @param resource|null $input |
| 23 | */ |
| 24 | public function __construct(OutputInterface $output, $input = null) |
| 25 | { |
| 26 | $this->output = $output; |
| 27 | $this->input = $input ?? (\defined('STDIN') ? \STDIN : \fopen('php://input', 'r+')); |
| 28 | } |
| 29 | /** |
| 30 | * @return $this |
| 31 | */ |
| 32 | public function moveUp(int $lines = 1) : self |
| 33 | { |
| 34 | $this->output->write(\sprintf("\x1b[%dA", $lines)); |
| 35 | return $this; |
| 36 | } |
| 37 | /** |
| 38 | * @return $this |
| 39 | */ |
| 40 | public function moveDown(int $lines = 1) : self |
| 41 | { |
| 42 | $this->output->write(\sprintf("\x1b[%dB", $lines)); |
| 43 | return $this; |
| 44 | } |
| 45 | /** |
| 46 | * @return $this |
| 47 | */ |
| 48 | public function moveRight(int $columns = 1) : self |
| 49 | { |
| 50 | $this->output->write(\sprintf("\x1b[%dC", $columns)); |
| 51 | return $this; |
| 52 | } |
| 53 | /** |
| 54 | * @return $this |
| 55 | */ |
| 56 | public function moveLeft(int $columns = 1) : self |
| 57 | { |
| 58 | $this->output->write(\sprintf("\x1b[%dD", $columns)); |
| 59 | return $this; |
| 60 | } |
| 61 | /** |
| 62 | * @return $this |
| 63 | */ |
| 64 | public function moveToColumn(int $column) : self |
| 65 | { |
| 66 | $this->output->write(\sprintf("\x1b[%dG", $column)); |
| 67 | return $this; |
| 68 | } |
| 69 | /** |
| 70 | * @return $this |
| 71 | */ |
| 72 | public function moveToPosition(int $column, int $row) : self |
| 73 | { |
| 74 | $this->output->write(\sprintf("\x1b[%d;%dH", $row + 1, $column)); |
| 75 | return $this; |
| 76 | } |
| 77 | /** |
| 78 | * @return $this |
| 79 | */ |
| 80 | public function savePosition() : self |
| 81 | { |
| 82 | $this->output->write("\x1b7"); |
| 83 | return $this; |
| 84 | } |
| 85 | /** |
| 86 | * @return $this |
| 87 | */ |
| 88 | public function restorePosition() : self |
| 89 | { |
| 90 | $this->output->write("\x1b8"); |
| 91 | return $this; |
| 92 | } |
| 93 | /** |
| 94 | * @return $this |
| 95 | */ |
| 96 | public function hide() : self |
| 97 | { |
| 98 | $this->output->write("\x1b[?25l"); |
| 99 | return $this; |
| 100 | } |
| 101 | /** |
| 102 | * @return $this |
| 103 | */ |
| 104 | public function show() : self |
| 105 | { |
| 106 | $this->output->write("\x1b[?25h\x1b[?0c"); |
| 107 | return $this; |
| 108 | } |
| 109 | /** |
| 110 | * Clears all the output from the current line. |
| 111 | * |
| 112 | * @return $this |
| 113 | */ |
| 114 | public function clearLine() : self |
| 115 | { |
| 116 | $this->output->write("\x1b[2K"); |
| 117 | return $this; |
| 118 | } |
| 119 | /** |
| 120 | * Clears all the output from the current line after the current position. |
| 121 | */ |
| 122 | public function clearLineAfter() : self |
| 123 | { |
| 124 | $this->output->write("\x1b[K"); |
| 125 | return $this; |
| 126 | } |
| 127 | /** |
| 128 | * Clears all the output from the cursors' current position to the end of the screen. |
| 129 | * |
| 130 | * @return $this |
| 131 | */ |
| 132 | public function clearOutput() : self |
| 133 | { |
| 134 | $this->output->write("\x1b[0J"); |
| 135 | return $this; |
| 136 | } |
| 137 | /** |
| 138 | * Clears the entire screen. |
| 139 | * |
| 140 | * @return $this |
| 141 | */ |
| 142 | public function clearScreen() : self |
| 143 | { |
| 144 | $this->output->write("\x1b[2J"); |
| 145 | return $this; |
| 146 | } |
| 147 | /** |
| 148 | * Returns the current cursor position as x,y coordinates. |
| 149 | */ |
| 150 | public function getCurrentPosition() : array |
| 151 | { |
| 152 | static $isTtySupported; |
| 153 | if (null === $isTtySupported && \function_exists('proc_open')) { |
| 154 | $isTtySupported = (bool) @\proc_open('echo 1 >/dev/null', [['file', '/dev/tty', 'r'], ['file', '/dev/tty', 'w'], ['file', '/dev/tty', 'w']], $pipes); |
| 155 | } |
| 156 | if (!$isTtySupported) { |
| 157 | return [1, 1]; |
| 158 | } |
| 159 | $sttyMode = \shell_exec('stty -g'); |
| 160 | \shell_exec('stty -icanon -echo'); |
| 161 | @\fwrite($this->input, "\x1b[6n"); |
| 162 | $code = \trim(\fread($this->input, 1024)); |
| 163 | \shell_exec(\sprintf('stty %s', $sttyMode)); |
| 164 | \sscanf($code, "\x1b[%d;%dR", $row, $col); |
| 165 | return [$col, $row]; |
| 166 | } |
| 167 | } |
| 168 |