diff options
Diffstat (limited to 'vendor/wikimedia/less.php/lib/Less/Visitor/extendFinder.php')
-rw-r--r-- | vendor/wikimedia/less.php/lib/Less/Visitor/extendFinder.php | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/vendor/wikimedia/less.php/lib/Less/Visitor/extendFinder.php b/vendor/wikimedia/less.php/lib/Less/Visitor/extendFinder.php new file mode 100644 index 0000000..8b3238d --- /dev/null +++ b/vendor/wikimedia/less.php/lib/Less/Visitor/extendFinder.php @@ -0,0 +1,105 @@ +<?php +/** + * @private + */ +class Less_Visitor_extendFinder extends Less_Visitor { + + public $contexts = []; + public $allExtendsStack; + public $foundExtends; + + public function __construct() { + $this->contexts = []; + $this->allExtendsStack = [ [] ]; + parent::__construct(); + } + + /** + * @param Less_Tree_Ruleset $root + */ + public function run( $root ) { + $root = $this->visitObj( $root ); + $root->allExtends =& $this->allExtendsStack[0]; + return $root; + } + + public function visitRule( $ruleNode, &$visitDeeper ) { + $visitDeeper = false; + } + + public function visitMixinDefinition( $mixinDefinitionNode, &$visitDeeper ) { + $visitDeeper = false; + } + + public function visitRuleset( $rulesetNode ) { + if ( $rulesetNode->root ) { + return; + } + + $allSelectorsExtendList = []; + + // get &:extend(.a); rules which apply to all selectors in this ruleset + if ( $rulesetNode->rules ) { + foreach ( $rulesetNode->rules as $rule ) { + if ( $rule instanceof Less_Tree_Extend ) { + $allSelectorsExtendList[] = $rule; + $rulesetNode->extendOnEveryPath = true; + } + } + } + + // now find every selector and apply the extends that apply to all extends + // and the ones which apply to an individual extend + foreach ( $rulesetNode->paths as $selectorPath ) { + $selector = end( $selectorPath ); // $selectorPath[ count($selectorPath)-1]; + + $j = 0; + foreach ( $selector->extendList as $extend ) { + $this->allExtendsStackPush( $rulesetNode, $selectorPath, $extend, $j ); + } + foreach ( $allSelectorsExtendList as $extend ) { + $this->allExtendsStackPush( $rulesetNode, $selectorPath, $extend, $j ); + } + } + + $this->contexts[] = $rulesetNode->selectors; + } + + public function allExtendsStackPush( $rulesetNode, $selectorPath, $extend, &$j ) { + $this->foundExtends = true; + $extend = clone $extend; + $extend->findSelfSelectors( $selectorPath ); + $extend->ruleset = $rulesetNode; + if ( $j === 0 ) { + $extend->firstExtendOnThisSelectorPath = true; + } + + $end_key = count( $this->allExtendsStack ) - 1; + $this->allExtendsStack[$end_key][] = $extend; + $j++; + } + + public function visitRulesetOut( $rulesetNode ) { + if ( !is_object( $rulesetNode ) || !$rulesetNode->root ) { + array_pop( $this->contexts ); + } + } + + public function visitMedia( $mediaNode ) { + $mediaNode->allExtends = []; + $this->allExtendsStack[] =& $mediaNode->allExtends; + } + + public function visitMediaOut() { + array_pop( $this->allExtendsStack ); + } + + public function visitDirective( $directiveNode ) { + $directiveNode->allExtends = []; + $this->allExtendsStack[] =& $directiveNode->allExtends; + } + + public function visitDirectiveOut() { + array_pop( $this->allExtendsStack ); + } +} |