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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 ThumbnailBuilder 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 | } |