2015-11-06 18:48:00 +00:00
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<?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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2016-06-09 12:42:05 +01:00
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namespace Symfony\Component\Console;
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2015-11-06 18:48:00 +00:00
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2016-06-09 12:42:05 +01:00
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class Terminal
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2015-11-06 18:48:00 +00:00
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{
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2016-06-09 12:42:05 +01:00
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private $width;
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private $height;
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2015-11-06 18:48:00 +00:00
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/**
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2016-06-09 16:22:51 +01:00
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* Gets the terminal width.
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2015-11-06 18:48:00 +00:00
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*
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2016-06-09 12:42:05 +01:00
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* @return int|null
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2015-11-06 18:48:00 +00:00
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*/
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2016-06-09 12:42:05 +01:00
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public function getWidth()
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2015-11-06 18:48:00 +00:00
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{
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2016-06-09 12:42:05 +01:00
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if (null === $this->width) {
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$this->initDimensions();
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2015-11-06 18:48:00 +00:00
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}
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2016-06-09 12:42:05 +01:00
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return $this->width;
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2015-11-06 18:48:00 +00:00
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}
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/**
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2016-06-09 12:42:05 +01:00
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* Sets the terminal width.
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2015-11-06 18:48:00 +00:00
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*
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2016-06-09 16:57:23 +01:00
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* @param int $width
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2015-11-06 18:48:00 +00:00
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*/
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2016-06-09 12:42:05 +01:00
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public function setWidth($width)
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2015-11-06 18:48:00 +00:00
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{
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2016-06-09 12:42:05 +01:00
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$this->width = $width;
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2015-11-06 18:48:00 +00:00
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}
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/**
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2016-06-09 16:22:51 +01:00
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* Gets the terminal height.
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2015-11-06 18:48:00 +00:00
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*
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* @return int|null
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*/
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2016-06-09 12:42:05 +01:00
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public function getHeight()
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2015-11-06 18:48:00 +00:00
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{
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2016-06-09 12:42:05 +01:00
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if (null === $this->height) {
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$this->initDimensions();
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}
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return $this->height;
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2015-11-06 18:48:00 +00:00
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}
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/**
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2016-06-09 12:42:05 +01:00
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* Sets the terminal height.
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2015-11-06 18:48:00 +00:00
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*
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2016-06-09 16:57:23 +01:00
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* @param int $height
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2015-11-06 18:48:00 +00:00
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*/
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2016-06-09 12:42:05 +01:00
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public function setHeight($height)
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2015-11-06 18:48:00 +00:00
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{
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2016-06-09 12:42:05 +01:00
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$this->height = $height;
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}
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private function initDimensions()
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{
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if (null !== $this->width && null !== $this->height) {
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return;
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}
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$width = $height = null;
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if ($this->isWindowsEnvironment()) {
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if (preg_match('/^(\d+)x\d+ \(\d+x(\d+)\)$/', trim(getenv('ANSICON')), $matches)) {
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// extract [w, H] from "wxh (WxH)"
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$width = (int) $matches[1];
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$height = (int) $matches[2];
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} elseif (null != $dimensions = $this->getConsoleMode()) {
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// extract [w, h] from "wxh"
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$width = $dimensions[0];
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$height = $dimensions[1];
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}
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} elseif ($sttyString = $this->getSttyColumns()) {
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if (preg_match('/rows.(\d+);.columns.(\d+);/i', $sttyString, $matches)) {
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// extract [w, h] from "rows h; columns w;"
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$width = (int) $matches[1];
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$height = (int) $matches[2];
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} elseif (preg_match('/;.(\d+).rows;.(\d+).columns/i', $sttyString, $matches)) {
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// extract [w, h] from "; h rows; w columns"
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$width = (int) $matches[2];
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$heighth = (int) $matches[1];
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}
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}
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if (null === $this->width) {
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$this->width = $width;
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}
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if (null === $this->height) {
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$this->height = $height;
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}
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2015-11-06 18:48:00 +00:00
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}
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/**
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* Runs and parses mode CON if it's available, suppressing any error output.
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*
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2016-06-09 12:42:05 +01:00
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* @return array|null An array composed of the width and the height or null if it could not be parsed
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2015-11-06 18:48:00 +00:00
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*/
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private function getConsoleMode()
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{
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if (!function_exists('proc_open')) {
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return;
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}
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$descriptorspec = array(
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1 => array('pipe', 'w'),
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2 => array('pipe', 'w'),
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);
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$process = proc_open('mode CON', $descriptorspec, $pipes, null, null, array('suppress_errors' => true));
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if (is_resource($process)) {
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$info = stream_get_contents($pipes[1]);
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fclose($pipes[1]);
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fclose($pipes[2]);
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proc_close($process);
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if (preg_match('/--------+\r?\n.+?(\d+)\r?\n.+?(\d+)\r?\n/', $info, $matches)) {
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2016-06-09 12:42:05 +01:00
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return array((int) $matches[2], (int) $matches[1]);
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2015-11-06 18:48:00 +00:00
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}
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}
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}
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/**
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* Runs and parses stty -a if it's available, suppressing any error output.
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*
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* @return string
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*/
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private function getSttyColumns()
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{
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if (!function_exists('proc_open')) {
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return;
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}
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$descriptorspec = array(
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1 => array('pipe', 'w'),
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2 => array('pipe', 'w'),
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);
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$process = proc_open('stty -a | grep columns', $descriptorspec, $pipes, null, null, array('suppress_errors' => true));
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if (is_resource($process)) {
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$info = stream_get_contents($pipes[1]);
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fclose($pipes[1]);
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fclose($pipes[2]);
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proc_close($process);
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return $info;
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}
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}
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/**
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* @return bool
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*/
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private function isWindowsEnvironment()
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{
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return '\\' === DIRECTORY_SEPARATOR;
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}
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}
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