<?php
namespace Sabberworm\CSS\CSSList;
use Sabberworm\CSS\OutputFormat;
use Sabberworm\CSS\Parsing\ParserState;
use Sabberworm\CSS\Parsing\SourceException;
use Sabberworm\CSS\Property\Selector;
use Sabberworm\CSS\RuleSet\DeclarationBlock;
use Sabberworm\CSS\RuleSet\RuleSet;
use Sabberworm\CSS\Value\Value;
/**
* The root `CSSList` of a parsed file. Contains all top-level CSS contents, mostly declaration blocks,
* but also any at-rules encountered.
*/
class Document extends CSSBlockList
{
/**
* @param int $iLineNo
*/
public function __construct($iLineNo = 0)
{
parent::__construct($iLineNo);
}
/**
* @return Document
*
* @throws SourceException
*/
public static function parse(ParserState $oParserState)
{
$oDocument = new Document($oParserState->currentLine());
CSSList::parseList($oParserState, $oDocument);
return $oDocument;
}
/**
* Gets all `DeclarationBlock` objects recursively.
*
* @return array<int, DeclarationBlock>
*/
public function getAllDeclarationBlocks()
{
/** @var array<int, DeclarationBlock> $aResult */
$aResult = [];
$this->allDeclarationBlocks($aResult);
return $aResult;
}
/**
* Gets all `DeclarationBlock` objects recursively.
*
* @return array<int, DeclarationBlock>
*
* @deprecated will be removed in version 9.0; use `getAllDeclarationBlocks()` instead
*/
public function getAllSelectors()
{
return $this->getAllDeclarationBlocks();
}
/**
* Returns all `RuleSet` objects found recursively in the tree.
*
* @return array<int, RuleSet>
*/
public function getAllRuleSets()
{
/** @var array<int, RuleSet> $aResult */
$aResult = [];
$this->allRuleSets($aResult);
return $aResult;
}
/**
* Returns all `Value` objects found recursively in the tree.
*
* @param CSSList|RuleSet|string $mElement
* the `CSSList` or `RuleSet` to start the search from (defaults to the whole document).
* If a string is given, it is used as rule name filter.
* @param bool $bSearchInFunctionArguments whether to also return Value objects used as Function arguments.
*
* @return array<int, Value>
*
* @see RuleSet->getRules()
*/
public function getAllValues($mElement = null, $bSearchInFunctionArguments = false)
{
$sSearchString = null;
if ($mElement === null) {
$mElement = $this;
} elseif (is_string($mElement)) {
$sSearchString = $mElement;
$mElement = $this;
}
/** @var array<int, Value> $aResult */
$aResult = [];
$this->allValues($mElement, $aResult, $sSearchString, $bSearchInFunctionArguments);
return $aResult;
}
/**
* Returns all `Selector` objects found recursively in the tree.
*
* Note that this does not yield the full `DeclarationBlock` that the selector belongs to
* (and, currently, there is no way to get to that).
*
* @param string|null $sSpecificitySearch
* An optional filter by specificity.
* May contain a comparison operator and a number or just a number (defaults to "==").
*
* @return array<int, Selector>
* @example `getSelectorsBySpecificity('>= 100')`
*
*/
public function getSelectorsBySpecificity($sSpecificitySearch = null)
{
/** @var array<int, Selector> $aResult */
$aResult = [];
$this->allSelectors($aResult, $sSpecificitySearch);
return $aResult;
}
/**
* Expands all shorthand properties to their long value.
*
* @return void
*/
public function expandShorthands()
{
foreach ($this->getAllDeclarationBlocks() as $oDeclaration) {
$oDeclaration->expandShorthands();
}
}
/**
* Create shorthands properties whenever possible.
*
* @return void
*/
public function createShorthands()
{
foreach ($this->getAllDeclarationBlocks() as $oDeclaration) {
$oDeclaration->createShorthands();
}
}
/**
* Overrides `render()` to make format argument optional.
*
* @param OutputFormat|null $oOutputFormat
*
* @return string
*/
public function render(OutputFormat $oOutputFormat = null)
{
if ($oOutputFormat === null) {
$oOutputFormat = new OutputFormat();
}
return parent::render($oOutputFormat);
}
/**
* @return bool
*/
public function isRootList()
{
return true;
}
}