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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Cosray\Value; |
| 6 | |
| 7 | use Cosray\Block\Layout; |
| 8 | use Cosray\Block\RenderContext; |
| 9 | use Cosray\Contract\Block as BlockType; |
| 10 | use Cosray\Exception\NoSuchProperty; |
| 11 | use Cosray\Field; |
| 12 | |
| 13 | use function Cosray\escape; |
| 14 | |
| 15 | /** |
| 16 | * One row of a Blocks field: its type, grid placement, block meta and |
| 17 | * the type's fields, reachable as properties like on an entry. |
| 18 | * |
| 19 | * @property-read Field\Blocks $field |
| 20 | */ |
| 21 | class Block extends Value |
| 22 | { |
| 23 | /** @var array<string, Field\Field> */ |
| 24 | protected array $fields = []; |
| 25 | |
| 26 | protected readonly Layout $layout; |
| 27 | |
| 28 | public function __construct( |
| 29 | Field\Owner $owner, |
| 30 | Field\Blocks $field, |
| 31 | ValueContext $context, |
| 32 | public readonly string $type, |
| 33 | ) { |
| 34 | parent::__construct($owner, $field, $context); |
| 35 | |
| 36 | $data = $this->data['fields'] ?? []; |
| 37 | $this->fields = $field->blockFieldsFor($type, is_array($data) ? $data : []); |
| 38 | $this->layout = Layout::normalize($this->data['layout'] ?? null, $field->getColumns(), $field->getMin()); |
| 39 | } |
| 40 | |
| 41 | public function __toString(): string |
| 42 | { |
| 43 | return $this->render(); |
| 44 | } |
| 45 | |
| 46 | public function uid(): ?string |
| 47 | { |
| 48 | $uid = $this->data['uid'] ?? null; |
| 49 | |
| 50 | return is_string($uid) ? $uid : null; |
| 51 | } |
| 52 | |
| 53 | /** The type's `data-type` value. */ |
| 54 | public function handle(): string |
| 55 | { |
| 56 | return $this->field->blockHandle($this->type); |
| 57 | } |
| 58 | |
| 59 | public function layout(): Layout |
| 60 | { |
| 61 | return $this->layout; |
| 62 | } |
| 63 | |
| 64 | /** A block-level meta entry, such as `class` or `id`. */ |
| 65 | public function meta(string $key, mixed $default = null): mixed |
| 66 | { |
| 67 | return parent::meta($key, $default); |
| 68 | } |
| 69 | |
| 70 | public function json(): array |
| 71 | { |
| 72 | return $this->fieldValues(static fn(Value $value): mixed => $value->json()); |
| 73 | } |
| 74 | |
| 75 | public function unwrap(): array |
| 76 | { |
| 77 | return $this->fieldValues(static fn(Value $value): mixed => $value->unwrap()); |
| 78 | } |
| 79 | |
| 80 | public function isset(): bool |
| 81 | { |
| 82 | return count($this->fields) > 0; |
| 83 | } |
| 84 | |
| 85 | public function __get(string $name): mixed |
| 86 | { |
| 87 | if (isset($this->fields[$name])) { |
| 88 | return $this->fields[$name]->value(); |
| 89 | } |
| 90 | |
| 91 | throw new NoSuchProperty("Block doesn't have field '{$name}'"); |
| 92 | } |
| 93 | |
| 94 | /** |
| 95 | * This block alone, wrapper element included. Supports the same |
| 96 | * arguments as `Blocks::render()`. |
| 97 | */ |
| 98 | public function render(mixed ...$args): string |
| 99 | { |
| 100 | $ctx = new RenderContext($this->owner, $this->fieldName, $this->field->getColumns(), $args); |
| 101 | |
| 102 | return $this->renderWith($ctx, $this->field->services()->blocks->create($this->type, $this->owner)); |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * The rendering contract: `{prefix}-block` plus the meta class, the |
| 107 | * meta id, `data-type`, the layout as data attributes and custom |
| 108 | * properties, then the type's output. An empty output emits no |
| 109 | * element, so a block whose asset is gone leaves no grid cell. |
| 110 | */ |
| 111 | public function renderWith(RenderContext $ctx, BlockType $type): string |
| 112 | { |
| 113 | $inner = $type->render($this, $ctx); |
| 114 | |
| 115 | if ($inner === '') { |
| 116 | return ''; |
| 117 | } |
| 118 | |
| 119 | $class = $ctx->prefix() . '-block'; |
| 120 | $styleClass = $this->styleClass(); |
| 121 | |
| 122 | if ($styleClass !== null) { |
| 123 | $class .= ' ' . $styleClass; |
| 124 | } |
| 125 | |
| 126 | $attributes = ' class="' . escape($class) . '"'; |
| 127 | $id = $this->elementId(); |
| 128 | |
| 129 | if ($id !== null) { |
| 130 | $attributes .= ' id="' . escape($id) . '"'; |
| 131 | } |
| 132 | |
| 133 | $layout = $this->layout; |
| 134 | // The columns the block takes out of its row: the reference sheet |
| 135 | // spans them and pushes the box past the indent. Derived, but |
| 136 | // emitted so CSS that cannot read the inline style still has it. |
| 137 | $reserved = $layout->indent + $layout->colspan; |
| 138 | $attributes .= |
| 139 | ' data-type="' |
| 140 | . escape($this->handle()) |
| 141 | . "\" data-colspan=\"{$layout->colspan}\" data-rowspan=\"{$layout->rowspan}\" data-indent=\"{$layout->indent}\"" |
| 142 | . " data-reserved=\"{$reserved}\"" |
| 143 | . " style=\"--colspan: {$layout->colspan}; --rowspan: {$layout->rowspan}; --indent: {$layout->indent};" |
| 144 | . " --reserved: {$reserved}\""; |
| 145 | |
| 146 | return "<div{$attributes}>{$inner}</div>"; |
| 147 | } |
| 148 | |
| 149 | /** |
| 150 | * @param callable(Value): mixed $resolve |
| 151 | * @return array{uid: ?string, type: string, handle: string, layout: array, fields: array<string, mixed>, meta: array} |
| 152 | */ |
| 153 | private function fieldValues(callable $resolve): array |
| 154 | { |
| 155 | $fields = []; |
| 156 | |
| 157 | foreach ($this->fields as $name => $field) { |
| 158 | $fields[$name] = $resolve($field->value()); |
| 159 | } |
| 160 | |
| 161 | $meta = $this->data['meta'] ?? []; |
| 162 | |
| 163 | return [ |
| 164 | 'uid' => $this->uid(), |
| 165 | 'type' => $this->type, |
| 166 | 'handle' => $this->handle(), |
| 167 | 'layout' => $this->layout->array(), |
| 168 | 'fields' => $fields, |
| 169 | 'meta' => is_array($meta) ? $meta : [], |
| 170 | ]; |
| 171 | } |
| 172 | } |