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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Phpdftk\Css\Cascade; |
| 6 | |
| 7 | use Phpdftk\Css\Value\Value; |
| 8 | |
| 9 | /** |
| 10 | * Per-element bag of resolved property → value pairs after the cascade |
| 11 | * has been applied. Phase 1D.3 ships this as a simple map; once the full |
| 12 | * `ComputedStyle` accessor surface lands (per `contracts.md`), this becomes |
| 13 | * the underlying storage backing those getters. |
| 14 | * |
| 15 | * `get($name)` falls back to the registry's initial value when the property |
| 16 | * was never set, so callers can treat the map as if every registered |
| 17 | * property is present. |
| 18 | */ |
| 19 | final class CascadedValues |
| 20 | { |
| 21 | /** @var array<string, Value> */ |
| 22 | private array $values = []; |
| 23 | |
| 24 | /** @var array<string, Value> */ |
| 25 | private array $customProperties = []; |
| 26 | |
| 27 | public function __construct(private readonly PropertyRegistry $registry) {} |
| 28 | |
| 29 | public function set(string $name, Value $value): void |
| 30 | { |
| 31 | $key = $this->normalise($name); |
| 32 | if (str_starts_with($key, '--')) { |
| 33 | $this->customProperties[$key] = $value; |
| 34 | return; |
| 35 | } |
| 36 | $this->values[$key] = $value; |
| 37 | } |
| 38 | |
| 39 | public function has(string $name): bool |
| 40 | { |
| 41 | $key = $this->normalise($name); |
| 42 | if (str_starts_with($key, '--')) { |
| 43 | return isset($this->customProperties[$key]); |
| 44 | } |
| 45 | return isset($this->values[$key]); |
| 46 | } |
| 47 | |
| 48 | public function get(string $name): ?Value |
| 49 | { |
| 50 | $key = $this->normalise($name); |
| 51 | if (str_starts_with($key, '--')) { |
| 52 | return $this->customProperties[$key] ?? null; |
| 53 | } |
| 54 | if (isset($this->values[$key])) { |
| 55 | return $this->values[$key]; |
| 56 | } |
| 57 | return $this->registry->get($key)?->initial; |
| 58 | } |
| 59 | |
| 60 | /** @return array<string, Value> standard properties only */ |
| 61 | public function all(): array |
| 62 | { |
| 63 | return $this->values; |
| 64 | } |
| 65 | |
| 66 | /** @return array<string, Value> declared custom properties only */ |
| 67 | public function customProperties(): array |
| 68 | { |
| 69 | return $this->customProperties; |
| 70 | } |
| 71 | |
| 72 | /** |
| 73 | * Custom-property names are case-sensitive per the spec; standard |
| 74 | * properties are lower-cased. |
| 75 | */ |
| 76 | private function normalise(string $name): string |
| 77 | { |
| 78 | return str_starts_with($name, '--') ? $name : strtolower($name); |
| 79 | } |
| 80 | } |