depicter / vendor / symfony / console / Cursor.php

Cursor.php in Depicter — Popup & Slider Builder 1.3.2, at vendor/symfony/console/Cursor.php

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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
12	namespace Symfony\Component\Console;
13
14	use Symfony\Component\Console\Output\OutputInterface;
15
16	/**
17	* @author Pierre du Plessis <pdples@gmail.com>
18	*/
19	final class Cursor
20	{
21	private $output;
22	private $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	public function moveUp(int $lines = 1): self
31	{
32	$this->output->write(sprintf("\x1b[%dA", $lines));
33
34	return $this;
35	}
36
37	public function moveDown(int $lines = 1): self
38	{
39	$this->output->write(sprintf("\x1b[%dB", $lines));
40
41	return $this;
42	}
43
44	public function moveRight(int $columns = 1): self
45	{
46	$this->output->write(sprintf("\x1b[%dC", $columns));
47
48	return $this;
49	}
50
51	public function moveLeft(int $columns = 1): self
52	{
53	$this->output->write(sprintf("\x1b[%dD", $columns));
54
55	return $this;
56	}
57
58	public function moveToColumn(int $column): self
59	{
60	$this->output->write(sprintf("\x1b[%dG", $column));
61
62	return $this;
63	}
64
65	public function moveToPosition(int $column, int $row): self
66	{
67	$this->output->write(sprintf("\x1b[%d;%dH", $row + 1, $column));
68
69	return $this;
70	}
71
72	public function savePosition(): self
73	{
74	$this->output->write("\x1b7");
75
76	return $this;
77	}
78
79	public function restorePosition(): self
80	{
81	$this->output->write("\x1b8");
82
83	return $this;
84	}
85
86	public function hide(): self
87	{
88	$this->output->write("\x1b[?25l");
89
90	return $this;
91	}
92
93	public function show(): self
94	{
95	$this->output->write("\x1b[?25h\x1b[?0c");
96
97	return $this;
98	}
99
100	/**
101	* Clears all the output from the current line.
102	*/
103	public function clearLine(): self
104	{
105	$this->output->write("\x1b[2K");
106
107	return $this;
108	}
109
110	/**
111	* Clears all the output from the current line after the current position.
112	*/
113	public function clearLineAfter(): self
114	{
115	$this->output->write("\x1b[K");
116
117	return $this;
118	}
119
120	/**
121	* Clears all the output from the cursors' current position to the end of the screen.
122	*/
123	public function clearOutput(): self
124	{
125	$this->output->write("\x1b[0J");
126
127	return $this;
128	}
129
130	/**
131	* Clears the entire screen.
132	*/
133	public function clearScreen(): self
134	{
135	$this->output->write("\x1b[2J");
136
137	return $this;
138	}
139
140	/**
141	* Returns the current cursor position as x,y coordinates.
142	*/
143	public function getCurrentPosition(): array
144	{
145	static $isTtySupported;
146
147	if (null === $isTtySupported && \function_exists('proc_open')) {
148	$isTtySupported = (bool) @proc_open('echo 1 >/dev/null', [['file', '/dev/tty', 'r'], ['file', '/dev/tty', 'w'], ['file', '/dev/tty', 'w']], $pipes);
149	}
150
151	if (!$isTtySupported) {
152	return [1, 1];
153	}
154
155	$sttyMode = shell_exec('stty -g');
156	shell_exec('stty -icanon -echo');
157
158	@fwrite($this->input, "\033[6n");
159
160	$code = trim(fread($this->input, 1024));
161
162	shell_exec(sprintf('stty %s', $sttyMode));
163
164	sscanf($code, "\033[%d;%dR", $row, $col);
165
166	return [$col, $row];
167	}
168	}
169