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| 1 | <?php |
| 2 | /** |
| 3 | * @private |
| 4 | */ |
| 5 | class Less_Tree_Element extends Less_Tree implements Less_Tree_HasValueProperty { |
| 6 | |
| 7 | /** @var string */ |
| 8 | public $combinator; |
| 9 | /** @var bool Whether combinator is null (represented by empty string) or child (single space) */ |
| 10 | public $combinatorIsEmptyOrWhitespace; |
| 11 | /** @var string|Less_Tree */ |
| 12 | public $value; |
| 13 | public $index; |
| 14 | public $currentFileInfo; |
| 15 | |
| 16 | public $value_is_object = false; |
| 17 | |
| 18 | /** |
| 19 | * @param null|string $combinator |
| 20 | * @param string|Less_Tree $value |
| 21 | * @param int|null $index |
| 22 | * @param array|null $currentFileInfo |
| 23 | */ |
| 24 | public function __construct( $combinator, $value, $index = null, $currentFileInfo = null ) { |
| 25 | $this->value = $value; |
| 26 | $this->value_is_object = is_object( $value ); |
| 27 | |
| 28 | // see less-2.5.3.js#Combinator |
| 29 | $this->combinator = $combinator ?? ''; |
| 30 | $this->combinatorIsEmptyOrWhitespace = ( $combinator === null || trim( $combinator ) === '' ); |
| 31 | |
| 32 | $this->index = $index; |
| 33 | $this->currentFileInfo = $currentFileInfo; |
| 34 | } |
| 35 | |
| 36 | public function accept( $visitor ) { |
| 37 | if ( $this->value_is_object ) { // object or string |
| 38 | $this->value = $visitor->visitObj( $this->value ); |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | public function compile( $env ) { |
| 43 | return new self( |
| 44 | $this->combinator, |
| 45 | ( $this->value_is_object ? $this->value->compile( $env ) : $this->value ), |
| 46 | $this->index, |
| 47 | $this->currentFileInfo |
| 48 | ); |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * @see Less_Tree::genCSS |
| 53 | */ |
| 54 | public function genCSS( $output ) { |
| 55 | $output->add( $this->toCSS(), $this->currentFileInfo, $this->index ); |
| 56 | } |
| 57 | |
| 58 | public function toCSS() { |
| 59 | if ( $this->value_is_object ) { |
| 60 | $value = $this->value->toCSS(); |
| 61 | } else { |
| 62 | $value = $this->value; |
| 63 | } |
| 64 | |
| 65 | $spaceOrEmpty = ' '; |
| 66 | if ( Less_Parser::$options['compress'] || ( isset( Less_Environment::$_noSpaceCombinators[$this->combinator] ) && Less_Environment::$_noSpaceCombinators[$this->combinator] ) ) { |
| 67 | $spaceOrEmpty = ''; |
| 68 | } |
| 69 | |
| 70 | return $spaceOrEmpty . $this->combinator . $spaceOrEmpty . $value; |
| 71 | } |
| 72 | |
| 73 | } |