Viewing file:  CSSBlockList.php (3.44 KB) -rw-r--r--
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<?php
namespace Sabberworm\CSS\CSSList;
use Sabberworm\CSS\RuleSet\DeclarationBlock;
use Sabberworm\CSS\RuleSet\RuleSet;
use Sabberworm\CSS\Property\Selector;
use Sabberworm\CSS\Rule\Rule;
use Sabberworm\CSS\Value\ValueList;
use Sabberworm\CSS\Value\CSSFunction;
/**
* A CSSBlockList is a CSSList whose DeclarationBlocks are guaranteed to contain valid declaration blocks or at-rules.
* Most CSSLists conform to this category but some at-rules (such as @keyframes) do not.
*/
abstract class CSSBlockList extends CSSList {
public function __construct($iLineNo = 0) {
parent::__construct($iLineNo);
}
protected function allDeclarationBlocks(&$aResult) {
foreach ($this->aContents as $mContent) {
if ($mContent instanceof DeclarationBlock) {
$aResult[] = $mContent;
} else if ($mContent instanceof CSSBlockList) {
$mContent->allDeclarationBlocks($aResult);
}
}
}
protected function allRuleSets(&$aResult) {
foreach ($this->aContents as $mContent) {
if ($mContent instanceof RuleSet) {
$aResult[] = $mContent;
} else if ($mContent instanceof CSSBlockList) {
$mContent->allRuleSets($aResult);
}
}
}
protected function allValues($oElement, &$aResult, $sSearchString = null, $bSearchInFunctionArguments = false) {
if ($oElement instanceof CSSBlockList) {
foreach ($oElement->getContents() as $oContent) {
$this->allValues($oContent, $aResult, $sSearchString, $bSearchInFunctionArguments);
}
} else if ($oElement instanceof RuleSet) {
foreach ($oElement->getRules($sSearchString) as $oRule) {
$this->allValues($oRule, $aResult, $sSearchString, $bSearchInFunctionArguments);
}
} else if ($oElement instanceof Rule) {
$this->allValues($oElement->getValue(), $aResult, $sSearchString, $bSearchInFunctionArguments);
} else if ($oElement instanceof ValueList) {
if ($bSearchInFunctionArguments || !($oElement instanceof CSSFunction)) {
foreach ($oElement->getListComponents() as $mComponent) {
$this->allValues($mComponent, $aResult, $sSearchString, $bSearchInFunctionArguments);
}
}
} else {
//Non-List Value or CSSString (CSS identifier)
$aResult[] = $oElement;
}
}
protected function allSelectors(&$aResult, $sSpecificitySearch = null) {
$aDeclarationBlocks = array();
$this->allDeclarationBlocks($aDeclarationBlocks);
foreach ($aDeclarationBlocks as $oBlock) {
foreach ($oBlock->getSelectors() as $oSelector) {
if ($sSpecificitySearch === null) {
$aResult[] = $oSelector;
} else {
$sComparator = '===';
$aSpecificitySearch = explode(' ', $sSpecificitySearch);
$iTargetSpecificity = $aSpecificitySearch[0];
if(count($aSpecificitySearch) > 1) {
$sComparator = $aSpecificitySearch[0];
$iTargetSpecificity = $aSpecificitySearch[1];
}
$iTargetSpecificity = (int)$iTargetSpecificity;
$iSelectorSpecificity = $oSelector->getSpecificity();
$bMatches = false;
switch($sComparator) {
case '<=':
$bMatches = $iSelectorSpecificity <= $iTargetSpecificity;
break;
case '<':
$bMatches = $iSelectorSpecificity < $iTargetSpecificity;
break;
case '>=':
$bMatches = $iSelectorSpecificity >= $iTargetSpecificity;
break;
case '>':
$bMatches = $iSelectorSpecificity > $iTargetSpecificity;
break;
default:
$bMatches = $iSelectorSpecificity === $iTargetSpecificity;
break;
}
if ($bMatches) {
$aResult[] = $oSelector;
}
}
}
}
}
}
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