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1 | <?php |
2 | /** |
3 | * ThumbnailBuilder.php |
4 | * |
5 | * This file is part of the Codex design system, the official design system |
6 | * for Wikimedia projects. It provides the `Thumbnail` class, a builder for constructing |
7 | * thumbnail components using the Codex design system. |
8 | * |
9 | * A Thumbnail is a visual element used to display a small preview of an image. |
10 | * Thumbnails provide users with a quick glimpse of the associated content. |
11 | * |
12 | * @category Builder |
13 | * @package Codex\Builder |
14 | * @since 0.1.0 |
15 | * @author Doğu Abaris <abaris@null.net> |
16 | * @license https://www.gnu.org/copyleft/gpl.html GPL-2.0-or-later |
17 | * @link https://doc.wikimedia.org/codex/main/ Codex Documentation |
18 | */ |
19 | |
20 | namespace Wikimedia\Codex\Builder; |
21 | |
22 | use Wikimedia\Codex\Component\Thumbnail; |
23 | use Wikimedia\Codex\Renderer\ThumbnailRenderer; |
24 | |
25 | /** |
26 | * ThumbnailBuilder |
27 | * |
28 | * This class implements the builder pattern to construct instances of Thumbnail. |
29 | * It provides a fluent interface for setting various properties and building the |
30 | * final immutable object with predefined configurations and immutability. |
31 | * |
32 | * @category Builder |
33 | * @package Codex\Builder |
34 | * @since 0.1.0 |
35 | * @author Doğu Abaris <abaris@null.net> |
36 | * @license https://www.gnu.org/copyleft/gpl.html GPL-2.0-or-later |
37 | * @link https://doc.wikimedia.org/codex/main/ Codex Documentation |
38 | */ |
39 | class ThumbnailBuilder { |
40 | |
41 | /** |
42 | * The ID for the thumbnail. |
43 | */ |
44 | protected string $id = ''; |
45 | |
46 | /** |
47 | * Background image URL. |
48 | */ |
49 | protected string $backgroundImage = ''; |
50 | |
51 | /** |
52 | * CSS class for custom placeholder icon. |
53 | */ |
54 | protected string $placeholderClass = ''; |
55 | |
56 | /** |
57 | * Additional HTML attributes for the thumbnail. |
58 | */ |
59 | protected array $attributes = []; |
60 | |
61 | /** |
62 | * The renderer instance used to render the thumbnail. |
63 | */ |
64 | protected ThumbnailRenderer $renderer; |
65 | |
66 | /** |
67 | * Constructor for the Thumbnail class. |
68 | * |
69 | * @param ThumbnailRenderer $renderer The renderer to use for rendering the thumbnail. |
70 | */ |
71 | public function __construct( ThumbnailRenderer $renderer ) { |
72 | $this->renderer = $renderer; |
73 | } |
74 | |
75 | /** |
76 | * Set the Thumbnail HTML ID attribute. |
77 | * |
78 | * @since 0.1.0 |
79 | * @param string $id The ID for the Thumbnail element. |
80 | * @return $this |
81 | */ |
82 | public function setId( string $id ): self { |
83 | $this->id = $id; |
84 | |
85 | return $this; |
86 | } |
87 | |
88 | /** |
89 | * Set the background image for the thumbnail. |
90 | * |
91 | * This method specifies the URL of the background image that will be displayed |
92 | * within the thumbnail. The image serves as a visual preview of the content. |
93 | * |
94 | * Example usage: |
95 | * |
96 | * $thumbnail->setBackgroundImage('https://example.com/image.jpg'); |
97 | * |
98 | * @since 0.1.0 |
99 | * @param string $backgroundImage The URL of the background image. |
100 | * @return $this Returns the Thumbnail instance for method chaining. |
101 | */ |
102 | public function setBackgroundImage( string $backgroundImage ): self { |
103 | $this->backgroundImage = $backgroundImage; |
104 | |
105 | return $this; |
106 | } |
107 | |
108 | /** |
109 | * Set the CSS class for a custom placeholder icon. |
110 | * |
111 | * This method specifies a custom CSS class for a placeholder icon that will be displayed |
112 | * if the background image is not provided. The placeholder gives users a visual indication of where |
113 | * an image will appear. |
114 | * |
115 | * Example usage: |
116 | * |
117 | * $thumbnail->setPlaceholderClass('custom-placeholder-icon'); |
118 | * |
119 | * @since 0.1.0 |
120 | * @param string $placeholderClass The CSS class for the placeholder icon. |
121 | * @return $this Returns the Thumbnail instance for method chaining. |
122 | */ |
123 | public function setPlaceholderClass( string $placeholderClass ): self { |
124 | $this->placeholderClass = $placeholderClass; |
125 | |
126 | return $this; |
127 | } |
128 | |
129 | /** |
130 | * Set additional HTML attributes for the thumbnail element. |
131 | * |
132 | * This method allows custom HTML attributes to be added to the outer `<span>` element of the thumbnail, |
133 | * such as `id`, `data-*`, `aria-*`, or any other valid attributes. These attributes can be used to |
134 | * enhance accessibility or integrate with JavaScript. |
135 | * |
136 | * Example usage: |
137 | * |
138 | * $thumbnail->setAttributes([ |
139 | * 'id' => 'thumbnail-id', |
140 | * 'data-category' => 'images', |
141 | * ]); |
142 | * |
143 | * @since 0.1.0 |
144 | * @param array $attributes An associative array of HTML attributes. |
145 | * @return $this Returns the Thumbnail instance for method chaining. |
146 | */ |
147 | public function setAttributes( array $attributes ): self { |
148 | foreach ( $attributes as $key => $value ) { |
149 | $this->attributes[$key] = $value; |
150 | } |
151 | return $this; |
152 | } |
153 | |
154 | /** |
155 | * Build and return the Thumbnail component object. |
156 | * This method constructs the immutable Thumbnail object with all the properties set via the builder. |
157 | * |
158 | * @since 0.1.0 |
159 | * @return Thumbnail The constructed Thumbnail. |
160 | */ |
161 | public function build(): Thumbnail { |
162 | return new Thumbnail( |
163 | $this->id, |
164 | $this->backgroundImage, |
165 | $this->placeholderClass, |
166 | $this->attributes, |
167 | $this->renderer |
168 | ); |
169 | } |
170 | } |