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Push — master ( 0001a8...55fdf1 )
by Johannes
02:44
created

ImageRenderer::__construct()   A

↳ Parent: ImageRenderer

Complexity

Conditions 1
Paths 1

Size

Total Lines 4
Code Lines 2

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
c 0
b 0
f 0
dl 0
loc 4
rs 10
cc 1
eloc 2
nc 1
nop 1
1 
<?php
2 
/**
3 
 * Lichtenwallner  (https://lichtenwallner.at)
4 
 *
5 
 * @see https://github.com/jolicht/markdown-cms for the canonical source repository
6 
 * @license https://github.com/jolicht/markdown-cms/blob/master/LICENSE MIT
7 
 * @copyright Copyright (c) Johannes Lichtenwallner
8 
 */
9 
declare(strict_types = 1);
10 
namespace Jolicht\MarkdownCms\Markdown\Renderer;
11 

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use League\CommonMark\ElementRendererInterface;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use League\CommonMark\HtmlElement;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use League\CommonMark\Inline\Renderer\InlineRendererInterface;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use League\CommonMark\Inline\Element\AbstractInline;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class ImageRenderer implements InlineRendererInterface

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * Url Translation

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @var array

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    private $urlTranslation;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * Constructor

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @param array $urlTranslation

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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     */

            


            
                                                                        
                            
            
                                    
            
            

                
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    public function __construct(array $urlTranslation)

            


            
                                                                        
                            
            
                                    
            
            

                
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    {

            


            
                                                                        
                            
            
                                    
            
            

                
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        $this->urlTranslation = $urlTranslation;

            


            
                                                                        
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * Get url translation

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @return array

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function getUrlTranslation() : array

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return $this->urlTranslation;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * Render image

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * {@inheritDoc}

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @see \League\CommonMark\Inline\Renderer\InlineRendererInterface::render()

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function render(AbstractInline $inline, ElementRendererInterface $htmlRenderer)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $altContent = $inline->firstChild()->getContent();

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
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                            show
                        


                        

                                                                                        




    

        
            Bug
    
    
    
        introduced 
                            by 
            

        

        

            
        

        

            

                

                    
                
                
            


        

    

    

        
                        

                            
                                
                            
                        

                                        
It seems like you code against a specific sub-type and not the parent class League\CommonMark\Node\Node as the method getContent() does only exist in the following sub-classes of League\CommonMark\Node\Node: League\CommonMark\Inline...AbstractStringContainer, League\CommonMark\Inline\Element\Code, League\CommonMark\Inline\Element\HtmlInline, League\CommonMark\Inline\Element\Text. Maybe you want to instanceof check for one of these explicitly?
                                                                                                                                                                                                                                                            

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
Let’s take a look at an example:


abstract class User
{
    /** @return string */
    abstract public function getPassword();
}

class MyUser extends User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}





In the above example, the authenticate() method works fine as long as you just pass
instances of MyUser. However, if you now also want to pass a different sub-classes
of User which does not have a getDisplayName() method, the code will break.




Available Fixes


  1. Change the type-hint for the parameter:
    

    class AuthSystem
{
    public function authenticate(MyUser $user) { /* ... */ }
}

    

    

    2. 

  2. Add an additional type-check:
    

    class AuthSystem
{
    public function authenticate(User $user)
    {
        if ($user instanceof MyUser) {
            $this->logger->info(/** ... */);
        }

        // or alternatively
        if ( ! $user instanceof MyUser) {
            throw new \LogicException(
                '$user must be an instance of MyUser, '
               .'other instances are not supported.'
            );
        }

    }
}

    

    

    3. 




 Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types
inside the if block in such a case.


  1. Add the method to the parent class:
    

    abstract class User
{
    /** @return string */
    abstract public function getPassword();

    /** @return string */
    abstract public function getDisplayName();
}

    

    

    2. 



                        

                                                    

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        $attributes = [

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            'src' => strtr($inline->getUrl(), $this->getUrlTranslation()),

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
0 ignored issues

                            –
                            show
                        


                        

                                                                                        




    

        
            Bug
    
    
    
        introduced 
                            by 
            

        

        

            
        

        

            

                

                    
                
                
            


        

    

    

        
                        

                            
                                
                            
                        

                                        
It seems like you code against a specific sub-type and not the parent class League\CommonMark\Inline\Element\AbstractInline as the method getUrl() does only exist in the following sub-classes of League\CommonMark\Inline\Element\AbstractInline: League\CommonMark\Inline...ent\AbstractWebResource, League\CommonMark\Inline\Element\Image, League\CommonMark\Inline\Element\Link. Maybe you want to instanceof check for one of these explicitly?
                                                                                                                                                                                                                                                            

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
Let’s take a look at an example:


abstract class User
{
    /** @return string */
    abstract public function getPassword();
}

class MyUser extends User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}





In the above example, the authenticate() method works fine as long as you just pass
instances of MyUser. However, if you now also want to pass a different sub-classes
of User which does not have a getDisplayName() method, the code will break.




Available Fixes


  1. Change the type-hint for the parameter:
    

    class AuthSystem
{
    public function authenticate(MyUser $user) { /* ... */ }
}

    

    

    2. 

  2. Add an additional type-check:
    

    class AuthSystem
{
    public function authenticate(User $user)
    {
        if ($user instanceof MyUser) {
            $this->logger->info(/** ... */);
        }

        // or alternatively
        if ( ! $user instanceof MyUser) {
            throw new \LogicException(
                '$user must be an instance of MyUser, '
               .'other instances are not supported.'
            );
        }

    }
}

    

    

    3. 




 Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types
inside the if block in such a case.


  1. Add the method to the parent class:
    

    abstract class User
{
    /** @return string */
    abstract public function getPassword();

    /** @return string */
    abstract public function getDisplayName();
}

    

    

    2. 



                        

                                                    

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            'alt' => $altContent,

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        ];

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $posJsonOpen = strpos($altContent, '{');

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $posJsonClose = strpos($altContent, '}');

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        if ((false !== $posJsonOpen) and (false !== $posJsonClose)) {

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
0 ignored issues

                            –
                            show
                        


                        

                                                                                        




    

        
            Comprehensibility
            Best Practice
    
    
    
        introduced 
                            by 
            

        

        

            
        

        

            

                

                    
                
                
            


        

    

    

        
                        

                            
                                
                            
                        

                                        
Using logical operators such as and instead of && is generally not recommended.
                                                                                                                                                    

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
PHP has two types of connecting operators (logical operators, and boolean operators):


 
Logical Operators
Boolean Operator

AND - meaning
and
&&

OR - meaning
or
||

The difference between these is the order in which they are executed. In most cases,
you would want to use a boolean operator like &&, or ||.


Let’s take a look at a few examples:


// Logical operators have lower precedence:
$f = false or true;

// is executed like this:
($f = false) or true;


// Boolean operators have higher precedence:
$f = false || true;

// is executed like this:
$f = (false || true);







Logical Operators are used for Control-Flow


One case where you explicitly want to use logical operators is for control-flow
such as this:


$x === 5
    or die('$x must be 5.');

// Instead of
if ($x !== 5) {
    die('$x must be 5.');
}





Since die introduces problems of its own, f.e. it makes our code hardly
testable, and prevents any kind of more sophisticated error handling; you probably
do not want to use this in real-world code. Unfortunately, logical operators
cannot be combined with throw at this point:


// The following is currently a parse error.
$x === 5
    or throw new RuntimeException('$x must be 5.');





These limitations lead to logical operators rarely being of use in current
PHP code.




                        

                                                    

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            $json = substr($altContent, $posJsonOpen, $posJsonClose);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            $data = json_decode($json, true);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            if (is_array($data)) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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                $attributes = array_merge($attributes, $data);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            $attributes['alt'] = substr($altContent, 0, $posJsonOpen);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        if (!isset($attributes['layout'])) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            $attributes['layout'] = 'responsive';

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return new HtmlElement('amp-img', $attributes);

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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    }

            


            
                                                        
            
                                    
            
            

                
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}