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| 1 | <?php |
| 2 | /** |
| 3 | * @private |
| 4 | */ |
| 5 | class Less_Visitor_joinSelector extends Less_Visitor { |
| 6 | |
| 7 | public $contexts = [ [] ]; |
| 8 | |
| 9 | /** |
| 10 | * @param Less_Tree_Ruleset $root |
| 11 | */ |
| 12 | public function run( $root ) { |
| 13 | return $this->visitObj( $root ); |
| 14 | } |
| 15 | |
| 16 | public function visitDeclration( $declNode, &$visitDeeper ) { |
| 17 | $visitDeeper = false; |
| 18 | } |
| 19 | |
| 20 | public function visitMixinDefinition( $mixinDefinitionNode, &$visitDeeper ) { |
| 21 | $visitDeeper = false; |
| 22 | } |
| 23 | |
| 24 | public function visitRuleset( $rulesetNode ) { |
| 25 | $context = end( $this->contexts ); |
| 26 | $paths = []; |
| 27 | |
| 28 | if ( !$rulesetNode->root ) { |
| 29 | $selectors = $rulesetNode->selectors; |
| 30 | if ( $selectors !== null ) { |
| 31 | $filtered = []; |
| 32 | foreach ( $selectors as $selector ) { |
| 33 | if ( $selector->getIsOutput() ) { |
| 34 | $filtered[] = $selector; |
| 35 | } |
| 36 | } |
| 37 | $selectors = $rulesetNode->selectors = $filtered ?: null; |
| 38 | if ( $selectors ) { |
| 39 | $paths = $rulesetNode->joinSelectors( $context, $selectors ); |
| 40 | } |
| 41 | } |
| 42 | |
| 43 | if ( $selectors === null ) { |
| 44 | $rulesetNode->rules = null; |
| 45 | } |
| 46 | |
| 47 | $rulesetNode->paths = $paths; |
| 48 | } |
| 49 | |
| 50 | // NOTE: Assigned here instead of at the start like less.js, |
| 51 | // because PHP arrays aren't by-ref |
| 52 | $this->contexts[] = $paths; |
| 53 | } |
| 54 | |
| 55 | public function visitRulesetOut() { |
| 56 | array_pop( $this->contexts ); |
| 57 | } |
| 58 | |
| 59 | public function visitMedia( $mediaNode ) { |
| 60 | $context = end( $this->contexts ); |
| 61 | |
| 62 | if ( count( $context ) === 0 || ( is_object( $context[0] ) && $context[0]->multiMedia ) ) { |
| 63 | $mediaNode->rules[0]->root = true; |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | public function visitAtRule( $atRuleNode ) { |
| 68 | $context = end( $this->contexts ); |
| 69 | |
| 70 | if ( $atRuleNode->rules && count( $atRuleNode->rules ) > 0 ) { |
| 71 | $atRuleNode->rules[0]->root = $atRuleNode->isRooted || count( $context ) === 0; |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | } |