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Pull Request — master (#9)
by Shinji
01:24
created

KeyboardCancelMiddleware::__construct()   A

↳ Parent: KeyboardCancelMiddleware

Complexity

Conditions 1
Paths 1

Size

Total Lines 7
Code Lines 5

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 1
eloc 5
nc 1
nop 2
dl 0
loc 7
rs 10
c 0
b 0
f 0
1 
<?php
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/**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * This file is part of the sj-i/php-profiler package.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * (c) sji <[email protected]>

            


            
                                                                                                            
                            
            
                                    
            
            

                
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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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declare(strict_types=1);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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namespace PhpProfiler\Lib\Loop\LoopMiddleware;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use PhpProfiler\Lib\Loop\LoopMiddlewareInterface;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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final class KeyboardCancelMiddleware implements LoopMiddlewareInterface

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    private LoopMiddlewareInterface $chain;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    private string $cancel_key;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /** @var resource */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    private $keyboard_input;

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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    public function __construct(string $cancel_key, LoopMiddlewareInterface $chain)

            


            
                                                                        
                            
            
                                    
            
            

                
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    {

            


            
                                                                        
                            
            
                                    
            
            

                
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        $this->chain = $chain;

            


            
                                                                        
                            
            
                                    
            
            

                
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        exec('stty -icanon -echo');

            


            
                                                                        
                            
            
                                    
            
            

                
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        $this->keyboard_input = fopen('php://stdin', 'r');

            


            
                                                                        
                            
            
                                    
            
            

                
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        stream_set_blocking($this->keyboard_input, false);

            


            
                                                                        
                            
            
                                    
            
            

                
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        $this->cancel_key = $cancel_key;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function invoke(): bool

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $key = fread($this->keyboard_input, 1);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        if ($key === $this->cancel_key) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            return false;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return $this->chain->invoke();

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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