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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Cosray\Value; |
| 6 | |
| 7 | use Cosray\Block as Builtin; |
| 8 | use Cosray\Block\Placement; |
| 9 | use Cosray\Block\RenderContext; |
| 10 | use Cosray\Field; |
| 11 | use Cosray\Field\Owner; |
| 12 | use Cosray\Markup; |
| 13 | use Cosray\Schema\Responsive; |
| 14 | use Cosray\Schema\TranslateMode; |
| 15 | use Generator; |
| 16 | use IteratorAggregate; |
| 17 | use Override; |
| 18 | |
| 19 | use function Cosray\escape; |
| 20 | |
| 21 | /** |
| 22 | * @property-read Field\Blocks $field |
| 23 | * @implements IteratorAggregate<int, Block> |
| 24 | */ |
| 25 | class Blocks extends Value implements IteratorAggregate |
| 26 | { |
| 27 | /** @var list<Block> */ |
| 28 | protected array $blocks = []; |
| 29 | |
| 30 | public function __construct(Owner $owner, Field\Blocks $field, ValueContext $context) |
| 31 | { |
| 32 | parent::__construct($owner, $field, $context); |
| 33 | |
| 34 | $this->blocks = $this->rows($this->list()); |
| 35 | } |
| 36 | |
| 37 | #[Override] |
| 38 | public function __toString(): string |
| 39 | { |
| 40 | return (string) $this->render(); |
| 41 | } |
| 42 | |
| 43 | /** @return array{columns: int, blocks: list<array<string, mixed>>} */ |
| 44 | #[Override] |
| 45 | public function json(): array |
| 46 | { |
| 47 | return [ |
| 48 | 'columns' => $this->columns(), |
| 49 | 'blocks' => array_map(static fn(Block $block): array => $block->json(), $this->blocks), |
| 50 | ]; |
| 51 | } |
| 52 | |
| 53 | /** @return array{columns: int, blocks: list<array<string, mixed>>} */ |
| 54 | #[Override] |
| 55 | public function raw(): array |
| 56 | { |
| 57 | return [ |
| 58 | 'columns' => $this->columns(), |
| 59 | 'blocks' => array_map(static fn(Block $block): array => $block->raw(), $this->blocks), |
| 60 | ]; |
| 61 | } |
| 62 | |
| 63 | /** @return Generator<int, Block> */ |
| 64 | #[Override] |
| 65 | public function getIterator(): Generator |
| 66 | { |
| 67 | foreach ($this->blocks as $block) { |
| 68 | yield $block; |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | public function count(): int |
| 73 | { |
| 74 | return count($this->blocks); |
| 75 | } |
| 76 | |
| 77 | public function first(): ?Block |
| 78 | { |
| 79 | return $this->blocks[0] ?? null; |
| 80 | } |
| 81 | |
| 82 | public function last(): ?Block |
| 83 | { |
| 84 | return $this->blocks[count($this->blocks) - 1] ?? null; |
| 85 | } |
| 86 | |
| 87 | public function get(int $index): ?Block |
| 88 | { |
| 89 | return $this->blocks[$index] ?? null; |
| 90 | } |
| 91 | |
| 92 | #[Override] |
| 93 | public function isset(): bool |
| 94 | { |
| 95 | return count($this->blocks) > 0; |
| 96 | } |
| 97 | |
| 98 | /** Every block in reading order, the blocks of a split in its place. */ |
| 99 | public function leaves(): Generator |
| 100 | { |
| 101 | yield from self::flatten($this->blocks); |
| 102 | } |
| 103 | |
| 104 | /** The column count stored with the value, the field's default without one. */ |
| 105 | public function columns(): int |
| 106 | { |
| 107 | return $this->field->columnsOf($this->data['columns'] ?? null); |
| 108 | } |
| 109 | |
| 110 | public function responsive(): Responsive |
| 111 | { |
| 112 | return $this->field->getResponsive(); |
| 113 | } |
| 114 | |
| 115 | /** The gap between blocks as a spacing token, `null` for the site's default. */ |
| 116 | public function gap(): ?string |
| 117 | { |
| 118 | return $this->spacing('gap'); |
| 119 | } |
| 120 | |
| 121 | public function rowGap(): ?string |
| 122 | { |
| 123 | return $this->spacing('rowGap'); |
| 124 | } |
| 125 | |
| 126 | public function columnGap(): ?string |
| 127 | { |
| 128 | return $this->spacing('columnGap'); |
| 129 | } |
| 130 | |
| 131 | /** The n-th image block's image. */ |
| 132 | public function image(int $index = 1): ?Image |
| 133 | { |
| 134 | $i = 0; |
| 135 | |
| 136 | foreach ($this->leaves() as $block) { |
| 137 | if ($block->type !== Builtin\Image::class) { |
| 138 | continue; |
| 139 | } |
| 140 | |
| 141 | if (++$i === $index) { |
| 142 | $image = $block->image; |
| 143 | |
| 144 | return $image instanceof Image ? $image : null; |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | return null; |
| 149 | } |
| 150 | |
| 151 | /** |
| 152 | * Every image of the image and images blocks. With `$all` a field |
| 153 | * translated per locale yields the images of every locale's list. |
| 154 | */ |
| 155 | public function images(bool $all = false): Generator |
| 156 | { |
| 157 | $lists = $all && $this->perLocale() ? $this->lists() : [$this->blocks]; |
| 158 | |
| 159 | foreach ($lists as $blocks) { |
| 160 | foreach (self::flatten($blocks) as $block) { |
| 161 | if ($block->type === Builtin\Image::class) { |
| 162 | $image = $block->image; |
| 163 | |
| 164 | if ($image instanceof Image) { |
| 165 | yield $image; |
| 166 | } |
| 167 | } elseif ($block->type === Builtin\Images::class) { |
| 168 | foreach ($block->images as $image) { |
| 169 | yield $image; |
| 170 | } |
| 171 | } |
| 172 | } |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | public function hasImage(int $index = 1): bool |
| 177 | { |
| 178 | return $this->image($index) !== null; |
| 179 | } |
| 180 | |
| 181 | /** The n-th richtext block's excerpt. */ |
| 182 | public function excerpt( |
| 183 | int $words = 30, |
| 184 | string $allowedTags = '', |
| 185 | int $index = 1, |
| 186 | ): Markup { |
| 187 | $i = 0; |
| 188 | |
| 189 | foreach ($this->leaves() as $block) { |
| 190 | if ($block->type !== Builtin\RichText::class) { |
| 191 | continue; |
| 192 | } |
| 193 | |
| 194 | if (++$i === $index) { |
| 195 | $text = $block->text; |
| 196 | |
| 197 | return $text instanceof RichText ? $text->excerpt($words, $allowedTags) : new Markup(''); |
| 198 | } |
| 199 | } |
| 200 | |
| 201 | return new Markup(''); |
| 202 | } |
| 203 | |
| 204 | // Supported args: |
| 205 | // |
| 206 | // - prefix: All generated css classes are prefixed with this value. |
| 207 | // Default 'cms' |
| 208 | // - tag: The tag of the container. Default 'div' |
| 209 | // - class: An additional class added to the container |
| 210 | // - imageSizes: `media.sizes` names forming the image block's srcset |
| 211 | // ladder. Default ['block-sm', 'block', 'block-lg'] |
| 212 | // - sizes: Template for the image block's `sizes` attribute; `{pct}` |
| 213 | // is replaced with the block's grid share in percent. |
| 214 | // Default '(min-width: 48rem) {pct}vw, 100vw' |
| 215 | // - thumbSize: `media.sizes` name for gallery thumbs. Default 'block-thumb' |
| 216 | public function render(mixed ...$args): Markup |
| 217 | { |
| 218 | $columns = $this->columns(); |
| 219 | $ctx = new RenderContext($this->owner, $this->fieldName, $columns, $args); |
| 220 | $class = $ctx->prefix() . '-blocks' . ($ctx->class() !== '' ? ' ' . $ctx->class() : ''); |
| 221 | $attributes = |
| 222 | ' class="' |
| 223 | . escape($class) |
| 224 | . "\" data-columns=\"{$columns}\" data-responsive=\"" |
| 225 | . escape($this->responsive()->value) |
| 226 | . '"'; |
| 227 | |
| 228 | // The spacing chosen in the editor, as tokens the site's sheet maps |
| 229 | // to lengths; nothing is emitted for the site's default. |
| 230 | foreach ([ |
| 231 | 'gap' => 'data-gap', |
| 232 | 'rowGap' => 'data-row-gap', |
| 233 | 'columnGap' => 'data-column-gap', |
| 234 | ] as $key => $attribute) { |
| 235 | $size = $this->spacing($key); |
| 236 | |
| 237 | if ($size !== null) { |
| 238 | $attributes .= " {$attribute}=\"" . escape($size) . '"'; |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | $out = '<' . $ctx->tag() . $attributes . " style=\"--columns: {$columns}\">"; |
| 243 | $types = $this->field->services()->blocks->cached($this->owner); |
| 244 | |
| 245 | foreach ($this->blocks as $block) { |
| 246 | $out .= $block->renderWith($ctx, $types); |
| 247 | } |
| 248 | |
| 249 | return new Markup($out . '</' . $ctx->tag() . '>'); |
| 250 | } |
| 251 | |
| 252 | private function spacing(string $key): ?string |
| 253 | { |
| 254 | $value = $this->meta($key); |
| 255 | |
| 256 | return is_string($value) && in_array($value, Field\Blocks::SPACING, true) ? $value : null; |
| 257 | } |
| 258 | |
| 259 | private function perLocale(): bool |
| 260 | { |
| 261 | return $this->field->translateMode() === TranslateMode::Asymmetric; |
| 262 | } |
| 263 | |
| 264 | /** |
| 265 | * The stored list for the effective locale (per-locale lists, along |
| 266 | * the fallback chain) or the shared list. |
| 267 | * |
| 268 | * @return array<mixed> |
| 269 | */ |
| 270 | private function list(): array |
| 271 | { |
| 272 | $value = $this->data['value'] ?? null; |
| 273 | |
| 274 | if (!is_array($value)) { |
| 275 | return []; |
| 276 | } |
| 277 | |
| 278 | $list = $this->perLocale() ? $this->effective($value) : $value[Field\Field::NEUTRAL_LOCALE] ?? []; |
| 279 | |
| 280 | return is_array($list) ? $list : []; |
| 281 | } |
| 282 | |
| 283 | /** @return list<list<Block>> every stored list, one per locale */ |
| 284 | private function lists(): array |
| 285 | { |
| 286 | $value = $this->data['value'] ?? null; |
| 287 | $lists = []; |
| 288 | |
| 289 | foreach (is_array($value) ? $value : [] as $list) { |
| 290 | if (is_array($list)) { |
| 291 | $lists[] = $this->rows($list); |
| 292 | } |
| 293 | } |
| 294 | |
| 295 | return $lists; |
| 296 | } |
| 297 | |
| 298 | /** |
| 299 | * A row without a type holding `blocks` is a split; one left without |
| 300 | * a block of an allowed type is skipped like a row of such a type. |
| 301 | * Every row has its position; one stored without gets a place below |
| 302 | * the others. |
| 303 | * |
| 304 | * @param array<mixed> $list |
| 305 | * @return list<Block> |
| 306 | */ |
| 307 | private function rows(array $list): array |
| 308 | { |
| 309 | $rows = []; |
| 310 | $columns = $this->columns(); |
| 311 | |
| 312 | foreach (Placement::rows($list, $columns, $this->field->minOf($columns)) as $row) { |
| 313 | if (!is_array($row)) { |
| 314 | continue; |
| 315 | } |
| 316 | |
| 317 | $type = $row['type'] ?? null; |
| 318 | $context = new ValueContext($this->fieldName, $row); |
| 319 | |
| 320 | if ($type === null && is_array($row['blocks'] ?? null)) { |
| 321 | $split = new Block($this->owner, $this->field, $context, null, columns: $columns); |
| 322 | |
| 323 | if ($split->blocks() !== []) { |
| 324 | $rows[] = $split; |
| 325 | } |
| 326 | } elseif (is_string($type) && $this->field->allows($type)) { |
| 327 | $rows[] = new Block($this->owner, $this->field, $context, $type, columns: $columns); |
| 328 | } |
| 329 | } |
| 330 | |
| 331 | return $rows; |
| 332 | } |
| 333 | |
| 334 | /** @param list<Block> $blocks */ |
| 335 | private static function flatten(array $blocks): Generator |
| 336 | { |
| 337 | foreach ($blocks as $block) { |
| 338 | if ($block->isSplit()) { |
| 339 | yield from $block->blocks(); |
| 340 | } else { |
| 341 | yield $block; |
| 342 | } |
| 343 | } |
| 344 | } |
| 345 | } |