4629580332

Build Type

github

Committed by GitHub

Commit Message

Merge 82f7901ba into 6c3583161

Pull Request Pull Request #1664: feat: image LQIP filter

Run Details

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88.89

/src/Assets/Image.php

<?php

declare(strict_types=1);

/*
 * This file is part of Cecil.
 *
 * Copyright (c) Arnaud Ligny <arnaud@ligny.fr>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Cecil\Assets;

use Cecil\Exception\RuntimeException;
use Intervention\Image\ImageManagerStatic as ImageManager;

class Image
{
    /**
     * Build the `srcset` attribute for responsive images.
     * e.g.: srcset="/img-480.jpg 480w, /img-800.jpg 800w".
     *
     * @throws RuntimeException
     */
    public static function buildSrcset(Asset $asset, array $widths): string
    {
        if ($asset['type'] !== 'image') {
            throw new RuntimeException(\sprintf('can\'t build "srcset" of "%s": it\'s not an image file.', $asset['path']));
        }

        $srcset = '';
        $widthMax = 0;
        foreach ($widths as $width) {
            if ($asset['width'] < $width) {
                break;
            }
            $img = $asset->resize($width);
            $srcset .= \sprintf('%s %sw, ', (string) $img, $width);
            $widthMax = $width;
        }
        rtrim($srcset, ', ');
        // add reference image
        if (!empty($srcset) && ($asset['width'] != $widthMax)) {
            $srcset .= \sprintf('%s %sw', (string) $asset, $asset['width']);
        }

        return $srcset;
    }

    /**
     * Checks if an asset is an animated gif.
     */
    public static function isAnimatedGif(Asset $asset): bool
    {
        // an animated gif contains multiple "frames", with each frame having a header made up of:
        // * a static 4-byte sequence (\x00\x21\xF9\x04)
        // * 4 variable bytes
        // * a static 2-byte sequence (\x00\x2C)
        $count = preg_match_all('#\x00\x21\xF9\x04.{4}\x00[\x2C\x21]#s', (string) $asset['content_source']);

        return $count > 1;
    }

    /**
     * Returns the dominant hex color of an image asset.
     *
     * @throws RuntimeException
     */
    public static function getDominantColor(Asset $asset): string
    {
        if ($asset['type'] !== 'image') {
            throw new RuntimeException(\sprintf('can\'t get dominant color of "%s": it\'s not an image file.', $asset['path']));
        }

        $assetColor = clone $asset;
        $assetColor = $assetColor->resize(100);
        $image = ImageManager::make($assetColor['content']);
        $color = $image->limitColors(1)->pickColor(0, 0, 'hex');
        $image->destroy();

        return $color;
    }

    /**
     * Returns a Low Quality Image Placeholder (LQIP) as data URL.
     *
     * @throws RuntimeException
     */
    public static function getLqip(Asset $asset): string
    {
        if ($asset['type'] !== 'image') {
            throw new RuntimeException(\sprintf('can\'t create LQIP of "%s": it\'s not an image file.', $asset['path']));
        }

        $assetLqip = clone $asset;
        $assetLqip = $assetLqip->resize(100);
        return (string) ImageManager::make($assetLqip['content'])->blur(50)->interlace()->encode('data-url');
    }

    /**
     * Returns the value of "sizes" corresponding to the configured class.
     */
    public static function getSizes(string $class, array $config): string
    {
        $classArray = explode(' ', $class);
        foreach ($classArray as $class) {
            if (array_key_exists($class, $config)) {
                $result = $config[$class] . ', ';
            }
        }
        if (!empty($result)) {
            return trim($result, ', ');
        }

        return $config['default'];
    }
}

1	<?php
2
3	declare(strict_types=1);
4
5	/*
6	* This file is part of Cecil.
7	*
8	* Copyright (c) Arnaud Ligny <arnaud@ligny.fr>
9	*
10	* For the full copyright and license information, please view the LICENSE
11	* file that was distributed with this source code.
12	*/
13
14	namespace Cecil\Assets;
15
16	use Cecil\Exception\RuntimeException;
17	use Intervention\Image\ImageManagerStatic as ImageManager;
18
19	class Image
20	{
21	/**
22	* Build the `srcset` attribute for responsive images.
23	* e.g.: srcset="/img-480.jpg 480w, /img-800.jpg 800w".
24	*
25	* @throws RuntimeException
26	*/
27	public static function buildSrcset(Asset $asset, array $widths): string
28	{
29	if ($asset['type'] !== 'image') {	1✔
30	throw new RuntimeException(\sprintf('can\'t build "srcset" of "%s": it\'s not an image file.', $asset['path']));	×
31	}
32
33	$srcset = '';	1✔
34	$widthMax = 0;	1✔
35	foreach ($widths as $width) {	1✔
36	if ($asset['width'] < $width) {	1✔
37	break;	1✔
38	}
39	$img = $asset->resize($width);	1✔
40	$srcset .= \sprintf('%s %sw, ', (string) $img, $width);	1✔
41	$widthMax = $width;	1✔
42	}
43	rtrim($srcset, ', ');	1✔
44	// add reference image
45	if (!empty($srcset) && ($asset['width'] != $widthMax)) {	1✔
46	$srcset .= \sprintf('%s %sw', (string) $asset, $asset['width']);	1✔
47	}
48
49	return $srcset;	1✔
50	}
51
52	/**
53	* Checks if an asset is an animated gif.
54	*/
55	public static function isAnimatedGif(Asset $asset): bool
56	{
57	// an animated gif contains multiple "frames", with each frame having a header made up of:
58	// * a static 4-byte sequence (\x00\x21\xF9\x04)
59	// * 4 variable bytes
60	// * a static 2-byte sequence (\x00\x2C)
61	$count = preg_match_all('#\x00\x21\xF9\x04.{4}\x00[\x2C\x21]#s', (string) $asset['content_source']);	1✔
62
63	return $count > 1;	1✔
64	}
65
66	/**
67	* Returns the dominant hex color of an image asset.
68	*
69	* @throws RuntimeException
70	*/
71	public static function getDominantColor(Asset $asset): string
72	{
73	if ($asset['type'] !== 'image') {	1✔
74	throw new RuntimeException(\sprintf('can\'t get dominant color of "%s": it\'s not an image file.', $asset['path']));	×
75	}
76
77	$assetColor = clone $asset;	1✔
78	$assetColor = $assetColor->resize(100);	1✔
79	$image = ImageManager::make($assetColor['content']);	1✔
80	$color = $image->limitColors(1)->pickColor(0, 0, 'hex');	1✔
81	$image->destroy();	1✔
82
83	return $color;	1✔
84	}
85
86	/**
87	* Returns a Low Quality Image Placeholder (LQIP) as data URL.
88	*
89	* @throws RuntimeException
90	*/
91	public static function getLqip(Asset $asset): string
92	{
93	if ($asset['type'] !== 'image') {	1✔
94	throw new RuntimeException(\sprintf('can\'t create LQIP of "%s": it\'s not an image file.', $asset['path']));	×
95	}
96
97	$assetLqip = clone $asset;	1✔
98	$assetLqip = $assetLqip->resize(100);	1✔
99	return (string) ImageManager::make($assetLqip['content'])->blur(50)->interlace()->encode('data-url');	1✔
100	}
101
102	/**
103	* Returns the value of "sizes" corresponding to the configured class.
104	*/
105	public static function getSizes(string $class, array $config): string
106	{
107	$classArray = explode(' ', $class);	1✔
108	foreach ($classArray as $class) {	1✔
109	if (array_key_exists($class, $config)) {	1✔
110	$result = $config[$class] . ', ';	1✔
111	}
112	}
113	if (!empty($result)) {	1✔
114	return trim($result, ', ');	1✔
115	}
116
117	return $config['default'];	×
118	}
119	}

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