Svg::__construct() - Code Metrics - Inspection of "Add Iconify provider" - ocubom/twig-svg-extension - Measure and Improve Code Quality continuously with Scrutinizer

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by Oscar

created 2023-04-02 07:06 UTC

Svg::__construct() B

↳ Parent: Svg

Complexity

Conditions	11
Paths	33

Size

Total Lines	60
Code Lines	37

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	35
CRAP Score	11

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
eloc	37
dl	0
loc	60
ccs	35
cts	35
cp	1
rs	7.3166
c	1
b	0
f	0
cc	11
nc	33
nop	2
crap	11

How to fix Long Method Complexity

<?php

/*
 * This file is part of ocubom/twig-svg-extension
 *
 * © Oscar Cubo Medina <https://ocubom.github.io>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Ocubom\Twig\Extension\Svg;

use enshrined\svgSanitize\Sanitizer;
use Ocubom\Twig\Extension\Svg\Exception\FileNotFoundException;
use Ocubom\Twig\Extension\Svg\Exception\ParseException;
use Ocubom\Twig\Extension\Svg\Processor\ClassProcessor;
use Ocubom\Twig\Extension\Svg\Processor\RemoveAttributeProcessor;
use Ocubom\Twig\Extension\Svg\Processor\TitleProcessor;
use Ocubom\Twig\Extension\Svg\Util\DomUtil;
use Symfony\Component\OptionsResolver\Options;
use Symfony\Component\OptionsResolver\OptionsResolver;

use function BenTools\IterableFunctions\iterable_merge;
use function BenTools\IterableFunctions\iterable_to_array;
use function Ocubom\Twig\Extension\is_string;

class Svg implements SvgInterface
{
    use SvgTrait;

    /** @var array<string, array<string, array<int, callable>|callable>> */
    private static array $processors = [];

    /**
     * @param Svg|\DOMNode|\SplFileInfo|\Stringable|string $data The SVG data
     */
    public function __construct($data, iterable $options = null)
    {
        switch (true) {
            case $data instanceof Svg : // "Copy" constructor
                $node = $this->constructFromString(DomUtil::toXml($data->svg)); // @codeCoverageIgnore
                break; // @codeCoverageIgnore

            case $data instanceof \DOMNode :
                $node = $this->constructFromString(DomUtil::toXml($data));
                break;

            case $data instanceof \SplFileInfo :
                $node = $this->constructFromFile($data);
                break;

            case is_string($data) :
                $node = $this->constructFromString($data);
                break;

            default:
                throw new ParseException(sprintf('Unable to create an SVG from "%s"', get_debug_type($data))); // @codeCoverageIgnore
        }

        // Merge options with SVG attributes
        $options = iterable_to_array(iterable_merge(
            DomUtil::getElementAttributes($node),
            $options ?? /* @scrutinizer ignore-type */ []
        ));

        // Define SVG attributes and resolve options + attributes
        $options = static::configureOptions()
            ->setDefined(array_keys($options)) // enables all optional options
            ->resolve($options);

        // Retrieve processors for this class with a naive cache
        $processors = self::$processors[static::class]
            ?? self::$processors[static::class] = array_map(
                function ($processors): array {
                    return is_iterable($processors) ? $processors : [$processors];
                },
                static::getProcessors()
            );
        if (isset($processors[''])) {
            $options[''] = null; // Force execution of global processors.
        }

        // Apply processors on a flesh clone in new DOM document
        $this->svg = DomUtil::cloneElement($node);
        foreach ($options as $key => $val) {
            if (isset($processors[$key])) {
                // Apply processors
                foreach ($processors[$key] as $processor) {
                    $this->svg = $processor($this->svg, $options);
                }
            } elseif (empty($val)) {
                // Remove empty attributes
                $this->svg->removeAttribute($key);
            } else {
                // Set attribute value
                $this->svg->setAttribute($key, $val);
            }
        }
    }

    protected function constructFromFile(\SplFileInfo $path): \DOMElement
    {
        $path = (string) $path;

        if (!is_file($path)) {
            throw new FileNotFoundException(sprintf('File "%s" does not exist.', $path)); // @codeCoverageIgnore
        }

        if (!is_readable($path)) {
            throw new FileNotFoundException(sprintf('File "%s" cannot be read.', $path)); // @codeCoverageIgnore
        }

        try {
            return $this->constructFromString(file_get_contents($path));
        } catch (ParseException $exc) {
            throw new ParseException(sprintf('File "%s" does not contain a valid SVG.', $path), 0, $exc);
        }
    }

    protected function constructFromString(string $contents): \DOMElement
    {
        // Sanitize contents (if enshrined\svgSanitize is installed)
        if (class_exists(Sanitizer::class)) {
            $contents = (new Sanitizer())->sanitize($contents);
        }

        // Remove all namespaces
        $contents = preg_replace('@xmlns(:.*)?=(\"[^\"]*\"|\'[^\']*\')@Uis', '', $contents);
        if (empty($contents)) {
            throw new ParseException(sprintf('Invalid SVG string "%s".', func_get_arg(0)));
        }

        // Parse contents into DOM
        $doc = DomUtil::createDocument();
        if (false === $doc->loadXML($contents)) {
            throw new ParseException(sprintf('Unable to load SVG string "%s".', func_get_arg(0))); // @codeCoverageIgnore
        }

        // Get first svg item
        $node = $doc->getElementsByTagName('svg')->item(0);
        if ($node instanceof \DOMElement) {
            return $node; // Return first SVG element
        }

        throw new ParseException(sprintf('String "%s" does not contain any SVG.', func_get_arg(0))); // @codeCoverageIgnore
    }

    /**
     * @return array<string, array<int, callable>|callable>
     */
    protected static function getProcessors(): array
    {
        return [
            // Options will be ignored & removed
            'debug' => new RemoveAttributeProcessor('debug'),
            'minimize' => new RemoveAttributeProcessor('minimize'),
            'class_block' => new RemoveAttributeProcessor('class_block'),

            // Custom process
            'class' => new ClassProcessor(),
            'title' => new TitleProcessor(),

            // Ignore attributes that depends on other options
            'aria-labelledby' => [], // generated on TitleProcessor
        ];
    }

    /** @psalm-suppress MissingClosureParamType */
    protected static function configureOptions(OptionsResolver $resolver = null): OptionsResolver
    {
        $resolver = $resolver ?? new OptionsResolver();

        // Options

        $resolver->define('debug')
            ->default(false)
            ->allowedTypes('bool')
            ->info('Enable debug output');

        $resolver->define('minimize')
            ->default(true)
            ->allowedTypes('bool')
            ->info('Minimize output');

        // Attributes

        /** @psalm-suppress MissingClosureParamType */
        $normalizeClass = function (Options $options, $value): array {
            return array_filter(
                is_string($value) ? preg_split('@\s+@Uis', $value) : ($value ?? []),
                function (string $item): bool {
                    return !empty($item);
                }
            );
        };

        $resolver->define('class')
            ->default('')
            ->allowedTypes('null', 'string', 'string[]')
            ->normalize($normalizeClass)
            ->info('Classes to apply');

        $resolver->define('class_block')
            ->default('')
            ->allowedTypes('null', 'string', 'string[]')
            ->normalize($normalizeClass)
            ->info('Classes to block');

        $resolver->define('width')
            ->default('1em')
            ->allowedTypes('string')
            ->info('Width of the element');

        $resolver->define('height')
            ->default('1em')
            ->allowedTypes('string')
            ->info('Height of the element');

        $resolver->define('title')
            ->default(null)
            ->allowedTypes('null', 'string')
            ->normalize(function (Options $options, ?string $value): ?string {
                return empty($value ?? '') ? null : $value;
            })
            ->info('Title of the icon. Used for semantic icons.');

        $resolver->define('focusable')
            ->default('false')
            ->allowedTypes('null', 'bool', 'string')
            ->normalize(function (Options $options, $value): ?string {
                if (is_bool($value)) {
                    return $value ? 'true' : 'false';
                }

                return empty($value) ? null : $value;
            })
            ->info('Indicates if the element can take the focus');

        $resolver->define('role')
            ->default('img')
            ->allowedTypes('null', 'string')
            ->info('Indicates the semantic meaning of the content');

        $resolver->define('aria-hidden')
            ->default(null)
            ->allowedTypes('null', 'bool', 'string')
            ->allowedValues(null, true, 'true', false, 'false')
            ->normalize(function (Options $options, $value): ?string {
                // Decorative icon: no title and not previously defined aria-hidden value
                if (
                    null === $value
                    && empty($options['aria-labelledby'])
                    && empty($options['title'])
                ) {
                    return 'true';
                }

                // Convert bool value into text
                if (is_bool($value)) {
                    return $value ? 'true' : 'false';
                }

                return empty($value)
                    ? null
                    : ('true' === $value ? 'true' : 'false');
            })
            ->info('Indicates whether the element is exposed to an accessibility API');

        $resolver->define('aria-labelledby')
            ->default(null)
            ->allowedTypes('null', 'string')
            ->normalize(function (Options $options, $value): ?string {
                // Decorative icon: no title and not previously defined aria-hidden value
                if (empty($options['title'])) {
                    return null;
                }

                // Generate an identifier based on title contents
                return $value ?? DomUtil::generateId(DomUtil::createElement('title', $options['title']));
            })
            ->info('Identifies the element that labels this element');

        return $resolver;
    }
}


1		<?php
2
3		/*
4		* This file is part of ocubom/twig-svg-extension
5		*
6		* © Oscar Cubo Medina <https://ocubom.github.io>
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 Ocubom\Twig\Extension\Svg;
13
14		use enshrined\svgSanitize\Sanitizer;
15		use Ocubom\Twig\Extension\Svg\Exception\FileNotFoundException;
16		use Ocubom\Twig\Extension\Svg\Exception\ParseException;
17		use Ocubom\Twig\Extension\Svg\Processor\ClassProcessor;
18		use Ocubom\Twig\Extension\Svg\Processor\RemoveAttributeProcessor;
19		use Ocubom\Twig\Extension\Svg\Processor\TitleProcessor;
20		use Ocubom\Twig\Extension\Svg\Util\DomUtil;
21		use Symfony\Component\OptionsResolver\Options;
22		use Symfony\Component\OptionsResolver\OptionsResolver;
23
24		use function BenTools\IterableFunctions\iterable_merge;
25		use function BenTools\IterableFunctions\iterable_to_array;
26		use function Ocubom\Twig\Extension\is_string;
27
28		class Svg implements SvgInterface
29		{
30		use SvgTrait;
31
32		/** @var array<string, array<string, array<int, callable>\|callable>> */
33		private static array $processors = [];
34
35		/**
36		* @param Svg\|\DOMNode\|\SplFileInfo\|\Stringable\|string $data The SVG data
37		*/
38	11	public function __construct($data, iterable $options = null)
39		{
40		switch (true) {
41	11	case $data instanceof Svg : // "Copy" constructor
42		$node = $this->constructFromString(DomUtil::toXml($data->svg)); // @codeCoverageIgnore
43		break; // @codeCoverageIgnore
44
45	11	case $data instanceof \DOMNode :
46	3	$node = $this->constructFromString(DomUtil::toXml($data));
47	3	break;
48
49	8	case $data instanceof \SplFileInfo :
50	5	$node = $this->constructFromFile($data);
51	4	break;
52
53	4	case is_string($data) :
54	4	$node = $this->constructFromString($data);
55	4	break;
56
57		default:
58		throw new ParseException(sprintf('Unable to create an SVG from "%s"', get_debug_type($data))); // @codeCoverageIgnore
59		}
60
61		// Merge options with SVG attributes
62	10	$options = iterable_to_array(iterable_merge(
63	10	DomUtil::getElementAttributes($node),
64	10	$options ?? /* @scrutinizer ignore-type */ []
65	10	));
66
67		// Define SVG attributes and resolve options + attributes
68	10	$options = static::configureOptions()
69	10	->setDefined(array_keys($options)) // enables all optional options
70	10	->resolve($options);
71
72		// Retrieve processors for this class with a naive cache
73	10	$processors = self::$processors[static::class]
74	10	?? self::$processors[static::class] = array_map(
75	10	function ($processors): array {
76	2	return is_iterable($processors) ? $processors : [$processors];
77	10	},
78	10	static::getProcessors()
79	10	);
80	10	if (isset($processors[''])) {
81	3	$options[''] = null; // Force execution of global processors.
82		}
83
84		// Apply processors on a flesh clone in new DOM document
85	10	$this->svg = DomUtil::cloneElement($node);
86	10	foreach ($options as $key => $val) {
87	10	if (isset($processors[$key])) {
88		// Apply processors
89	10	foreach ($processors[$key] as $processor) {
90	10	$this->svg = $processor($this->svg, $options);
91		}
92	10	} elseif (empty($val)) {
93		// Remove empty attributes
94	4	$this->svg->removeAttribute($key);
95		} else {
96		// Set attribute value
97	10	$this->svg->setAttribute($key, $val);
98		}
99		}
100		}
101
102	5	protected function constructFromFile(\SplFileInfo $path): \DOMElement
103		{
104	5	$path = (string) $path;
105
106	5	if (!is_file($path)) {
107		throw new FileNotFoundException(sprintf('File "%s" does not exist.', $path)); // @codeCoverageIgnore
108		}
109
110	5	if (!is_readable($path)) {
111		throw new FileNotFoundException(sprintf('File "%s" cannot be read.', $path)); // @codeCoverageIgnore
112		}
113
114		try {
115	5	return $this->constructFromString(file_get_contents($path));
116	1	} catch (ParseException $exc) {
117	1	throw new ParseException(sprintf('File "%s" does not contain a valid SVG.', $path), 0, $exc);
118		}
119		}
120
121	11	protected function constructFromString(string $contents): \DOMElement
122		{
123		// Sanitize contents (if enshrined\svgSanitize is installed)
124	11	if (class_exists(Sanitizer::class)) {
125	11	$contents = (new Sanitizer())->sanitize($contents);
126		}
127
128		// Remove all namespaces
129	11	$contents = preg_replace('@xmlns(:.)?=(\"[^\"]\"\|\'[^\']*\')@Uis', '', $contents);
130	11	if (empty($contents)) {
131	1	throw new ParseException(sprintf('Invalid SVG string "%s".', func_get_arg(0)));
132		}
133
134		// Parse contents into DOM
135	10	$doc = DomUtil::createDocument();
136	10	if (false === $doc->loadXML($contents)) {
137		throw new ParseException(sprintf('Unable to load SVG string "%s".', func_get_arg(0))); // @codeCoverageIgnore
138		}
139
140		// Get first svg item
141	10	$node = $doc->getElementsByTagName('svg')->item(0);
142	10	if ($node instanceof \DOMElement) {
143	10	return $node; // Return first SVG element
144		}
145
146		throw new ParseException(sprintf('String "%s" does not contain any SVG.', func_get_arg(0))); // @codeCoverageIgnore
147		}
148
149		/**
150		* @return array<string, array<int, callable>\|callable>
151		*/
152	2	protected static function getProcessors(): array
153		{
154	2	return [
155		// Options will be ignored & removed
156	2	'debug' => new RemoveAttributeProcessor('debug'),
157	2	'minimize' => new RemoveAttributeProcessor('minimize'),
158	2	'class_block' => new RemoveAttributeProcessor('class_block'),
159
160		// Custom process
161	2	'class' => new ClassProcessor(),
162	2	'title' => new TitleProcessor(),
163
164		// Ignore attributes that depends on other options
165	2	'aria-labelledby' => [], // generated on TitleProcessor
166	2	];
167		}
168
169		/** @psalm-suppress MissingClosureParamType */
170	10	protected static function configureOptions(OptionsResolver $resolver = null): OptionsResolver
171		{
172	10	$resolver = $resolver ?? new OptionsResolver();
173
174		// Options
175
176	10	$resolver->define('debug')
177	10	->default(false)
178	10	->allowedTypes('bool')
179	10	->info('Enable debug output');
180
181	10	$resolver->define('minimize')
182	10	->default(true)
183	10	->allowedTypes('bool')
184	10	->info('Minimize output');
185
186		// Attributes
187
188		/** @psalm-suppress MissingClosureParamType */
189	10	$normalizeClass = function (Options $options, $value): array {
190	10	return array_filter(
191	10	is_string($value) ? preg_split('@\s+@Uis', $value) : ($value ?? []),
192	10	function (string $item): bool {
193	10	return !empty($item);
194	10	}
195	10	);
196	10	};
197
198	10	$resolver->define('class')
199	10	->default('')
200	10	->allowedTypes('null', 'string', 'string[]')
201	10	->normalize($normalizeClass)
202	10	->info('Classes to apply');
203
204	10	$resolver->define('class_block')
205	10	->default('')
206	10	->allowedTypes('null', 'string', 'string[]')
207	10	->normalize($normalizeClass)
208	10	->info('Classes to block');
209
210	10	$resolver->define('width')
211	10	->default('1em')
212	10	->allowedTypes('string')
213	10	->info('Width of the element');
214
215	10	$resolver->define('height')
216	10	->default('1em')
217	10	->allowedTypes('string')
218	10	->info('Height of the element');
219
220	10	$resolver->define('title')
221	10	->default(null)
222	10	->allowedTypes('null', 'string')
223	10	->normalize(function (Options $options, ?string $value): ?string {
224	10	return empty($value ?? '') ? null : $value;
225	10	})
226	10	->info('Title of the icon. Used for semantic icons.');
227
228	10	$resolver->define('focusable')
229	10	->default('false')
230	10	->allowedTypes('null', 'bool', 'string')
231	10	->normalize(function (Options $options, $value): ?string {
232	10	if (is_bool($value)) {
233	1	return $value ? 'true' : 'false';
234		}
235
236	10	return empty($value) ? null : $value;
237	10	})
238	10	->info('Indicates if the element can take the focus');
239
240	10	$resolver->define('role')
241	10	->default('img')
242	10	->allowedTypes('null', 'string')
243	10	->info('Indicates the semantic meaning of the content');
244
245	10	$resolver->define('aria-hidden')
246	10	->default(null)
247	10	->allowedTypes('null', 'bool', 'string')
248	10	->allowedValues(null, true, 'true', false, 'false')
249	10	->normalize(function (Options $options, $value): ?string {
250		// Decorative icon: no title and not previously defined aria-hidden value
251		if (
252	10	null === $value
253	10	&& empty($options['aria-labelledby'])
254	10	&& empty($options['title'])
255		) {
256	8	return 'true';
257		}
258
259		// Convert bool value into text
260	4	if (is_bool($value)) {
261	1	return $value ? 'true' : 'false';
262		}
263
264	4	return empty($value)
265	4	? null
266	4	: ('true' === $value ? 'true' : 'false');
267	10	})
268	10	->info('Indicates whether the element is exposed to an accessibility API');
269
270	10	$resolver->define('aria-labelledby')
271	10	->default(null)
272	10	->allowedTypes('null', 'string')
273	10	->normalize(function (Options $options, $value): ?string {
274		// Decorative icon: no title and not previously defined aria-hidden value
275	10	if (empty($options['title'])) {
276	9	return null;
277		}
278
279		// Generate an identifier based on title contents
280	4	return $value ?? DomUtil::generateId(DomUtil::createElement('title', $options['title']));
281	10	})
282	10	->info('Identifies the element that labels this element');
283
284	10	return $resolver;
285		}
286		}
287

ocubom / twig-svg-extension

Push — main ( d61a4b...a3ea10 )

Svg::__construct() B

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Importance

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