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Selector.php
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Selector.php
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<?php
/**
* @private
*/
class Less_Tree_Selector extends Less_Tree {
public $elements;
public $condition;
public $extendList = [];
public $_css;
public $index;
public $evaldCondition = false;
public $currentFileInfo = [];
public $isReferenced;
public $mediaEmpty;
public $elements_len = 0;
public $_oelements;
public $_oelements_assoc;
public $_oelements_len;
public $cacheable = true;
/**
* @param Less_Tree_Element[] $elements
* @param Less_Tree_Element[] $extendList
* @param Less_Tree_Condition|null $condition
* @param int|null $index
* @param array|null $currentFileInfo
* @param bool|null $isReferenced
*/
public function __construct( $elements, $extendList = [], $condition = null, $index = null, $currentFileInfo = null, $isReferenced = null ) {
$this->elements = $elements;
$this->elements_len = count( $elements );
$this->extendList = $extendList;
$this->condition = $condition;
if ( $currentFileInfo ) {
$this->currentFileInfo = $currentFileInfo;
}
$this->isReferenced = $isReferenced;
if ( !$condition ) {
$this->evaldCondition = true;
}
$this->CacheElements();
}
public function accept( $visitor ) {
$this->elements = $visitor->visitArray( $this->elements );
$this->extendList = $visitor->visitArray( $this->extendList );
if ( $this->condition ) {
$this->condition = $visitor->visitObj( $this->condition );
}
if ( $visitor instanceof Less_Visitor_extendFinder ) {
$this->CacheElements();
}
}
public function createDerived( $elements, $extendList = null, $evaldCondition = null ) {
$newSelector = new self(
$elements,
( $extendList ?: $this->extendList ),
null,
$this->index,
$this->currentFileInfo,
$this->isReferenced
);
$newSelector->evaldCondition = $evaldCondition ?: $this->evaldCondition;
$newSelector->mediaEmpty = $this->mediaEmpty;
return $newSelector;
}
public function match( $other ) {
if ( !$other->_oelements || ( $this->elements_len < $other->_oelements_len ) ) {
return 0;
}
for ( $i = 0; $i < $other->_oelements_len; $i++ ) {
if ( $this->elements[$i]->value !== $other->_oelements[$i] ) {
return 0;
}
}
return $other->_oelements_len; // return number of matched elements
}
/**
* @see less-2.5.3.js#Selector.prototype.CacheElements
*/
public function CacheElements() {
$this->_oelements = [];
$this->_oelements_assoc = [];
$css = '';
foreach ( $this->elements as $v ) {
$css .= $v->combinator;
if ( !$v->value_is_object ) {
$css .= $v->value;
continue;
}
if ( isset( $v->value->value ) && is_scalar( $v->value->value ) ) {
$css .= $v->value->value;
continue;
}
if ( ( $v->value instanceof Less_Tree_Selector || $v->value instanceof Less_Tree_Variable )
|| !is_string( $v->value->value ) ) {
$this->cacheable = false;
return;
}
}
$this->_oelements_len = preg_match_all( '/[,&#\*\.\w-](?:[\w-]|(?:\\\\.))*/', $css, $matches );
if ( $this->_oelements_len ) {
$this->_oelements = $matches[0];
if ( $this->_oelements[0] === '&' ) {
array_shift( $this->_oelements );
$this->_oelements_len--;
}
$this->_oelements_assoc = array_fill_keys( $this->_oelements, true );
}
}
public function isJustParentSelector() {
return !$this->mediaEmpty &&
count( $this->elements ) === 1 &&
$this->elements[0]->value === '&' &&
( $this->elements[0]->combinator === ' ' || $this->elements[0]->combinator === '' );
}
public function compile( $env ) {
$elements = [];
foreach ( $this->elements as $el ) {
$elements[] = $el->compile( $env );
}
$extendList = [];
foreach ( $this->extendList as $el ) {
$extendList[] = $el->compile( $el );
}
$evaldCondition = false;
if ( $this->condition ) {
$evaldCondition = $this->condition->compile( $env );
}
return $this->createDerived( $elements, $extendList, $evaldCondition );
}
/**
* @see Less_Tree::genCSS
*/
public function genCSS( $output, $firstSelector = true ) {
if ( !$firstSelector && $this->elements[0]->combinator === "" ) {
$output->add( ' ', $this->currentFileInfo, $this->index );
}
foreach ( $this->elements as $element ) {
$element->genCSS( $output );
}
}
public function markReferenced() {
$this->isReferenced = true;
}
public function getIsReferenced() {
return !isset( $this->currentFileInfo['reference'] ) || !$this->currentFileInfo['reference'] || $this->isReferenced;
}
public function getIsOutput() {
return $this->evaldCondition;
}
}

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text/x-php
Expires
Tue, Aug 18, 16:24 (3 w, 4 d ago)
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local-disk
Storage Format
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Storage Handle
94/f5/991deca8b730f83c40a78065eafc
Default Alt Text
Selector.php (4 KB)

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