LazyLoad::init() - Code Metrics - Inspection of "Lazyload widget update" - luyadev/luya - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#1868)

by Marc

created 2018-10-25 16:02 UTC

LazyLoad::init() B

↳ Parent: LazyLoad

Complexity

Conditions	3
Paths	3

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	70
rs	8.6545
c	0
b	0
f	0
cc	3
nc	3
nop	0

How to fix Long Method

<?php

namespace luya\lazyload;

use luya\base\Widget;
use yii\base\InvalidConfigException;
use yii\helpers\Html;
use luya\web\View;

/**
 * Image Lazy Loader.
 *
 * ```php
 * <?= LazyLoad::widget(['src' => 'http://www.zephir.ch/img/zephir-logo.png']); ?>
 * ```
 *
 * In order to read more visit the [[concept-lazyload.md]] guide section.
 *
 * @author Basil Suter <[email protected]>
 * @author Marc Stampfli <[email protected]>
 * @since 1.0.0
 */
class LazyLoad extends Widget
{
    const JS_ASSET_KEY = 'lazyload.js.register';

    const CSS_ASSET_KEY = 'lazyload.css.register';

    /**
     * @var string The path to the image you want to lazy load.
     */
    public $src;

    /**
     * @var string Path for the placeholder image that will be base64 encoded.
     * @since 1.0.13
     */
    public $placeholderSrc;

    /**
     * @var boolean Inline the placeholder source as base64 encoded string
     * @since 1.0.13
     */
    public $placeholderAsBase64 = false;

    /**
     * @var integer The width of the image, this information should be provided in order to display a placeholder.
     */
    public $width;

    /**
     * @var integer The height of the image, this information should be provided in order to display a placeholder.
     */
    public $height;

    /**
     * @var boolean Define whether a full image tag should be return or only the attributes. This can be applied when using the lazy loader in background images.
     */
    public $attributesOnly = false;

    /**
     * @var string Additional classes for the lazy load image.
     */
    public $extraClass;

    /**
     * @inheritdoc
     */
    public function init()
    {
        parent::init();

        if ($this->src === null) {
            throw new InvalidConfigException("The parameter src is required by the lazyload widget.");
        }

        // register the asset file
        LazyLoadAsset::register($this->view);

        // register js and css code with keys in order to ensure the registration is done only once
        $this->view->registerJs("$('.lazy-image').lazyLoad();", View::POS_READY, self::JS_ASSET_KEY);

        if ($this->placeholderSrc) {
            $this->view->registerCss("
                .lazyimage-wrapper {
                    display: block;
                    width: 100%;
                    position: relative;
                    overflow: hidden;
                }
                .lazyimage {
                    position: absolute;
                    top: 50%;
                    left: 50%;
                    bottom: 0;
                    right: 0;
                    opacity: 0;
                    height: 100%;
                    width: 100%;
                    -webkit-transition: 1s ease-in-out opacity;
                    transition: 1s ease-in-out opacity;
                    -webkit-transform: translate(-50%,-50%);
                    transform: translate(-50%,-50%);
                    -o-object-fit: cover;
                    object-fit: cover;
                    -o-object-position: center center;
                    object-position: center center;
                    z-index: 20;
                }
                .lazyimage.loaded {
                    opacity: 1;
                }
                .lazyimage-placeholder-image {
                    display: block;
                    width: 100%;
                    height: auto;
                }
                .nojs .lazyimage,
                .nojs .lazyimage-placeholder-image,
                .no-js .lazyimage,
                .no-js .lazyimage-placeholder-image {
                    display: none;
                }
            ", [], self::CSS_ASSET_KEY);
        } else {
            $this->view->registerCss("
                .lazy-image {
                    display: none;
                }
                .lazy-image.loaded {
                    display: block;
                }
                .lazy-placeholder {
                    background-color: #f2f2f2;
                }
            ", [], self::CSS_ASSET_KEY);
        }
    }

    /**
     * @inheritdoc
     */
    public function run()
    {
        $class = ($this->placeholderSrc ? 'lazyimage-wrapper' : 'lazy-image') . ' ' . $this->extraClass;

        if ($this->placeholderSrc && $this->placeholderAsBase64) {
            $this->placeholderSrc = 'data:image/jpg;base64,' . base64_encode(file_get_contents($this->placeholderSrc));
        }

        if ($this->attributesOnly && !$this->placeholderSrc) {
            return "class=\"{$class}\" data-src=\"$this->src\" data-width=\"$this->width\" data-height=\"$this->height\" data-as-background=\"1\"";
        }

        if ($this->placeholderSrc) {
            $tag = '<div class="' . $class . '">';
            $tag .= Html::tag('img', '', ['class' => 'lazy-image lazyimage', 'data-src' => $this->src]);
            $tag .= Html::tag('img', '', ['class' => 'lazyimage-placeholder-image', 'src' => $this->placeholderSrc]);
            $tag .= '<noscript><img class="lazyimage-image" src="' . $this->src . '" /></noscript>';
            $tag .= '</div>';
        } else {
            $tag = Html::tag('img', '', ['class' => $class, 'data-src' => $this->src, 'data-width' => $this->width, 'data-height' => $this->height]);
            $tag .= '<noscript><img class="'.$class.'" src="'.$this->src.'" /></noscript>';
        }

        return $tag;
    }
}


1			<?php
2
3			namespace luya\lazyload;
4
5			use luya\base\Widget;
6			use yii\base\InvalidConfigException;
7			use yii\helpers\Html;
8			use luya\web\View;
9
10			/**
11			* Image Lazy Loader.
12			*
13			* ```php
14			* <?= LazyLoad::widget(['src' => 'http://www.zephir.ch/img/zephir-logo.png']); ?>
15			* ```
16			*
17			* In order to read more visit the [[concept-lazyload.md]] guide section.
18			*
19			* @author Basil Suter <[email protected]>
20			* @author Marc Stampfli <[email protected]>
21			* @since 1.0.0
22			*/
23			class LazyLoad extends Widget
24			{
25			const JS_ASSET_KEY = 'lazyload.js.register';
26
27			const CSS_ASSET_KEY = 'lazyload.css.register';
28
29			/**
30			* @var string The path to the image you want to lazy load.
31			*/
32			public $src;
33
34			/**
35			* @var string Path for the placeholder image that will be base64 encoded.
36			* @since 1.0.13
37			*/
38			public $placeholderSrc;
39
40			/**
41			* @var boolean Inline the placeholder source as base64 encoded string
42			* @since 1.0.13
43			*/
44			public $placeholderAsBase64 = false;
45
46			/**
47			* @var integer The width of the image, this information should be provided in order to display a placeholder.
48			*/
49			public $width;
50
51			/**
52			* @var integer The height of the image, this information should be provided in order to display a placeholder.
53			*/
54			public $height;
55
56			/**
57			* @var boolean Define whether a full image tag should be return or only the attributes. This can be applied when using the lazy loader in background images.
58			*/
59			public $attributesOnly = false;
60
61			/**
62			* @var string Additional classes for the lazy load image.
63			*/
64			public $extraClass;
65
66			/**
67			* @inheritdoc
68			*/
69			public function init()
70			{
71			parent::init();
72
73			if ($this->src === null) {
74			throw new InvalidConfigException("The parameter src is required by the lazyload widget.");
75			}
76
77			// register the asset file
78			LazyLoadAsset::register($this->view);
79
80			// register js and css code with keys in order to ensure the registration is done only once
81			$this->view->registerJs("$('.lazy-image').lazyLoad();", View::POS_READY, self::JS_ASSET_KEY);
82
83			if ($this->placeholderSrc) {
84			$this->view->registerCss("
85			.lazyimage-wrapper {
86			display: block;
87			width: 100%;
88			position: relative;
89			overflow: hidden;
90			}
91			.lazyimage {
92			position: absolute;
93			top: 50%;
94			left: 50%;
95			bottom: 0;
96			right: 0;
97			opacity: 0;
98			height: 100%;
99			width: 100%;
100			-webkit-transition: 1s ease-in-out opacity;
101			transition: 1s ease-in-out opacity;
102			-webkit-transform: translate(-50%,-50%);
103			transform: translate(-50%,-50%);
104			-o-object-fit: cover;
105			object-fit: cover;
106			-o-object-position: center center;
107			object-position: center center;
108			z-index: 20;
109			}
110			.lazyimage.loaded {
111			opacity: 1;
112			}
113			.lazyimage-placeholder-image {
114			display: block;
115			width: 100%;
116			height: auto;
117			}
118			.nojs .lazyimage,
119			.nojs .lazyimage-placeholder-image,
120			.no-js .lazyimage,
121			.no-js .lazyimage-placeholder-image {
122			display: none;
123			}
124			", [], self::CSS_ASSET_KEY);
125			} else {
126			$this->view->registerCss("
127			.lazy-image {
128			display: none;
129			}
130			.lazy-image.loaded {
131			display: block;
132			}
133			.lazy-placeholder {
134			background-color: #f2f2f2;
135			}
136			", [], self::CSS_ASSET_KEY);
137			}
138			}
139
140			/**
141			* @inheritdoc
142			*/
143			public function run()
144			{
145			$class = ($this->placeholderSrc ? 'lazyimage-wrapper' : 'lazy-image') . ' ' . $this->extraClass;
146
147			if ($this->placeholderSrc && $this->placeholderAsBase64) {
148			$this->placeholderSrc = 'data:image/jpg;base64,' . base64_encode(file_get_contents($this->placeholderSrc));
149			}
150
151			if ($this->attributesOnly && !$this->placeholderSrc) {
152			return "class=\"{$class}\" data-src=\"$this->src\" data-width=\"$this->width\" data-height=\"$this->height\" data-as-background=\"1\"";
153			}
154
155			if ($this->placeholderSrc) {
156			$tag = '<div class="' . $class . '">';
157			$tag .= Html::tag('img', '', ['class' => 'lazy-image lazyimage', 'data-src' => $this->src]);
158			$tag .= Html::tag('img', '', ['class' => 'lazyimage-placeholder-image', 'src' => $this->placeholderSrc]);
159			$tag .= '<noscript><img class="lazyimage-image" src="' . $this->src . '" /></noscript>';
160			$tag .= '</div>';
161			} else {
162			$tag = Html::tag('img', '', ['class' => $class, 'data-src' => $this->src, 'data-width' => $this->width, 'data-height' => $this->height]);
163			$tag .= '<noscript><img class="'.$class.'" src="'.$this->src.'" /></noscript>';
164			}
165
166			return $tag;
167			}
168			}
169

luyadev / luya

Pull Request — master (#1868)

LazyLoad::init() B

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