/sites/all/modules/contrib/querypath/QueryPath/CssEventHandler.php
PHP | 1095 lines | 981 code | 114 blank | 0 comment | 65 complexity | 4eb47cda81bf199a0bc82b305ed8d2da MD5 | raw file
Possible License(s): GPL-2.0, AGPL-1.0, LGPL-2.1
- <?php
- require_once 'CssParser.php';
- class QueryPathCssEventHandler implements CssEventHandler {
- protected $dom = NULL;
- protected $matches = NULL;
- protected $alreadyMatched = NULL;
- protected $findAnyElement = TRUE;
-
-
-
- public function __construct($dom) {
- $this->alreadyMatched = new SplObjectStorage();
- $matches = new SplObjectStorage();
-
-
- if (is_array($dom) || $dom instanceof SplObjectStorage) {
-
- foreach($dom as $item) {
- if ($item instanceof DOMNode && $item->nodeType == XML_ELEMENT_NODE) {
-
- $matches->attach($item);
- }
- }
-
- if ($matches->count() > 0) {
- $matches->rewind();
- $this->dom = $matches->current();
- }
- else {
-
- $this->dom = NULL;
- }
- $this->matches = $matches;
- }
-
- elseif ($dom instanceof DOMDocument) {
- $this->dom = $dom->documentElement;
- $matches->attach($dom->documentElement);
- }
-
- elseif ($dom instanceof DOMElement) {
- $this->dom = $dom;
- $matches->attach($dom);
- }
-
- elseif ($dom instanceof DOMNodeList) {
- $a = array();
- foreach ($dom as $item) {
- if ($item->nodeType == XML_ELEMENT_NODE) {
- $matches->attach($item);
- $a[] = $item;
- }
- }
- $this->dom = $a;
- }
-
-
- else {
- throw new Exception("Unhandled type: " . get_class($dom));
- }
- $this->matches = $matches;
- }
-
-
- public function find($filter) {
- $parser = new CssParser($filter, $this);
- $parser->parse();
- return $this;
- }
-
-
- public function getMatches() {
-
- $result = new SplObjectStorage();
- foreach($this->alreadyMatched as $m) $result->attach($m);
- foreach($this->matches as $m) $result->attach($m);
- return $result;
- }
-
-
- public function elementID($id) {
- $found = new SplObjectStorage();
- $matches = $this->candidateList();
- foreach ($matches as $item) {
-
- if ($item->hasAttribute('id') && $item->getAttribute('id') === $id) {
- $found->attach($item);
- break;
- }
- }
- $this->matches = $found;
- $this->findAnyElement = FALSE;
- }
-
-
- public function element($name) {
- $matches = $this->candidateList();
- $this->findAnyElement = FALSE;
- $found = new SplObjectStorage();
- foreach ($matches as $item) {
-
-
-
- if ($item->tagName == $name) {
- $found->attach($item);
- }
-
-
-
- }
-
- $this->matches = $found;
- }
-
-
- public function elementNS($lname, $namespace = NULL) {
- $this->findAnyElement = FALSE;
- $found = new SplObjectStorage();
- $matches = $this->candidateList();
- foreach ($matches as $item) {
-
-
-
-
-
-
-
- $nsuri = $this->dom->lookupNamespaceURI($namespace);
-
-
-
-
-
-
- if ($item instanceof DOMNode
- && $item->namespaceURI == $nsuri
- && $lname == $item->localName) {
- $found->attach($item);
- }
-
- if (!empty($nsuri)) {
- $nl = $item->getElementsByTagNameNS($nsuri, $lname);
-
-
- if (!empty($nl)) $this->attachNodeList($nl, $found);
- }
- else {
-
- $nl = $item->getElementsByTagName($lname);
- $tagname = $namespace . ':' . $lname;
- $nsmatches = array();
- foreach ($nl as $node) {
- if ($node->tagName == $tagname) {
-
- $found->attach($node);
- }
- }
-
-
- }
- }
- $this->matches = $found;
- }
-
- public function anyElement() {
- $found = new SplObjectStorage();
-
- $matches = $this->candidateList();
- foreach ($matches as $item) {
- $found->attach($item);
-
-
-
-
- }
-
- $this->matches = $found;
- $this->findAnyElement = FALSE;
- }
- public function anyElementInNS($ns) {
-
- $nsuri = $this->dom->lookupNamespaceURI($ns);
- $found = new SplObjectStorage();
- if (!empty($nsuri)) {
- $matches = $this->candidateList();
- foreach ($matches as $item) {
- if ($item instanceOf DOMNode && $nsuri == $item->namespaceURI) {
- $found->attach($item);
- }
- }
- }
- $this->matches = $found;
- $this->findAnyElement = FALSE;
- }
- public function elementClass($name) {
-
- $found = new SplObjectStorage();
- $matches = $this->candidateList();
- foreach ($matches as $item) {
- if ($item->hasAttribute('class')) {
- $classes = explode(' ', $item->getAttribute('class'));
- if (in_array($name, $classes)) $found->attach($item);
- }
- }
-
- $this->matches = $found;
- $this->findAnyElement = FALSE;
- }
-
- public function attribute($name, $value = NULL, $operation = CssEventHandler::isExactly) {
- $found = new SplObjectStorage();
- $matches = $this->candidateList();
- foreach ($matches as $item) {
- if ($item->hasAttribute($name)) {
- if (isset($value)) {
-
- if($this->attrValMatches($value, $item->getAttribute($name), $operation)) {
- $found->attach($item);
- }
- }
- else {
-
- $found->attach($item);
- }
- }
- }
- $this->matches = $found;
- $this->findAnyElement = FALSE;
- }
-
- protected function searchForAttr($name, $value = NULL) {
- $found = new SplObjectStorage();
- $matches = $this->candidateList();
- foreach ($matches as $candidate) {
- if ($candidate->hasAttribute($name)) {
-
- if (isset($value) && $value == $candidate->getAttribute($name)) {
- $found->attach($candidate);
- }
-
- else {
- $found->attach($candidate);
- }
- }
- }
-
- $this->matches = $found;
- }
-
- public function attributeNS($lname, $ns, $value = NULL, $operation = CssEventHandler::isExactly) {
- $matches = $this->candidateList();
- $found = new SplObjectStorage();
- if (count($matches) == 0) {
- $this->matches = $found;
- return;
- }
-
-
-
- $matches->rewind();
- $e = $matches->current();
- $uri = $e->lookupNamespaceURI($ns);
-
- foreach ($matches as $item) {
-
-
-
- if ($item->hasAttributeNS($uri, $lname)) {
- if (isset($value)) {
- if ($this->attrValMatches($value, $item->getAttributeNS($uri, $lname), $operation)) {
- $found->attach($item);
- }
- }
- else {
- $found->attach($item);
- }
- }
- }
- $this->matches = $found;
- $this->findAnyElement = FALSE;
- }
-
-
- public function pseudoClass($name, $value = NULL) {
- $name = strtolower($name);
-
- switch($name) {
- case 'visited':
- case 'hover':
- case 'active':
- case 'focus':
- case 'animated':
- case 'visible':
- case 'hidden':
-
- case 'target':
-
- $this->matches = new SplObjectStorage();
- break;
- case 'indeterminate':
-
-
- throw new NotImplementedException(":indeterminate is not implemented.");
- break;
- case 'lang':
-
- if (!isset($value)) {
- throw new NotImplementedException("No handler for lang pseudoclass without value.");
- }
- $this->lang($value);
- break;
- case 'link':
- $this->searchForAttr('href');
- break;
- case 'root':
- $found = new SplObjectStorage();
- if (empty($this->dom)) {
- $this->matches = $found;
- }
- elseif (is_array($this->dom)) {
- $found->attach($this->dom[0]->ownerDocument->documentElement);
- $this->matches = $found;
- }
- elseif ($this->dom instanceof DOMNode) {
- $found->attach($this->dom->ownerDocument->documentElement);
- $this->matches = $found;
- }
- elseif ($this->dom instanceof DOMNodeList && $this->dom->length > 0) {
- $found->attach($this->dom->item(0)->ownerDocument->documentElement);
- $this->matches = $found;
- }
- else {
-
- $found->attach($this->dom);
- $this->matches = $found;
- }
- break;
-
-
-
- case 'x-root':
- case 'x-reset':
- $this->matches = new SplObjectStorage();
- $this->matches->attach($this->dom);
- break;
-
-
-
- case 'even':
- $this->nthChild(2, 0);
- break;
- case 'odd':
- $this->nthChild(2, 1);
- break;
-
-
- case 'nth-child':
- list($aVal, $bVal) = $this->parseAnB($value);
- $this->nthChild($aVal, $bVal);
- break;
- case 'nth-last-child':
- list($aVal, $bVal) = $this->parseAnB($value);
- $this->nthLastChild($aVal, $bVal);
- break;
- case 'nth-of-type':
- list($aVal, $bVal) = $this->parseAnB($value);
- $this->nthOfTypeChild($aVal, $bVal);
- break;
- case 'nth-last-of-type':
- list($aVal, $bVal) = $this->parseAnB($value);
- $this->nthLastOfTypeChild($aVal, $bVal);
- break;
- case 'first-child':
- $this->nthChild(0, 1);
- break;
- case 'last-child':
- $this->nthLastChild(0, 1);
- break;
- case 'first-of-type':
- $this->firstOfType();
- break;
- case 'last-of-type':
- $this->lastOfType();
- break;
- case 'only-child':
- $this->onlyChild();
- break;
- case 'only-of-type':
- $this->onlyOfType();
- break;
- case 'empty':
- $this->emptyElement();
- break;
- case 'not':
- if (empty($value)) {
- throw new CssParseException(":not() requires a value.");
- }
- $this->not($value);
- break;
-
- case 'lt':
- case 'gt':
- case 'nth':
- case 'eq':
- case 'first':
- case 'last':
-
-
- $this->getByPosition($name, $value);
- break;
- case 'parent':
- $matches = $this->candidateList();
- $found = new SplObjectStorage();
- foreach ($matches as $match) {
- if (!empty($match->firstChild)) {
- $found->attach($match);
- }
- }
- $this->matches = $found;
- break;
-
- case 'enabled':
- case 'disabled':
- case 'checked':
- $this->attribute($name);
- break;
- case 'text':
- case 'radio':
- case 'checkbox':
- case 'file':
- case 'password':
- case 'submit':
- case 'image':
- case 'reset':
- case 'button':
- case 'submit':
- $this->attribute('type', $name);
- break;
- case 'header':
- $matches = $this->candidateList();
- $found = new SplObjectStorage();
- foreach ($matches as $item) {
- $tag = $item->tagName;
- $f = strtolower(substr($tag, 0, 1));
- if ($f == 'h' && strlen($tag) == 2 && ctype_digit(substr($tag, 1, 1))) {
- $found->attach($item);
- }
- }
- $this->matches = $found;
- break;
- case 'has':
- $this->has($value);
- break;
-
-
- case 'contains':
- $value = $this->removeQuotes($value);
-
- $matches = $this->candidateList();
- $found = new SplObjectStorage();
- foreach ($matches as $item) {
- if (strpos($item->textContent, $value) !== FALSE) {
- $found->attach($item);
- }
- }
- $this->matches = $found;
- break;
-
-
- case 'contains-exactly':
- $value = $this->removeQuotes($value);
-
- $matches = $this->candidateList();
- $found = new SplObjectStorage();
- foreach ($matches as $item) {
- if ($item->textContent == $value) {
- $found->attach($item);
- }
- }
- $this->matches = $found;
- break;
- default:
- throw new CssParseException("Unknown Pseudo-Class: " . $name);
- }
- $this->findAnyElement = FALSE;
- }
-
-
- private function removeQuotes($str) {
- $f = substr($str, 0, 1);
- $l = substr($str, -1);
- if ($f === $l && ($f == '"' || $f == "'")) {
- $str = substr($str, 1, -1);
- }
- return $str;
- }
-
-
- private function getByPosition($operator, $pos) {
- $matches = $this->candidateList();
- $found = new SplObjectStorage();
- if ($matches->count() == 0) {
- return;
- }
-
- switch ($operator) {
- case 'nth':
- case 'eq':
- if ($matches->count() >= $pos) {
-
- foreach ($matches as $match) {
-
- if ($matches->key() + 1 == $pos) {
- $found->attach($match);
- break;
- }
- }
- }
- break;
- case 'first':
- if ($matches->count() > 0) {
- $matches->rewind();
- $found->attach($matches->current());
- }
- break;
- case 'last':
- if ($matches->count() > 0) {
-
-
- foreach ($matches as $item) {};
-
- $found->attach($item);
- }
- break;
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- case 'lt':
- $i = 0;
- foreach ($matches as $item) {
- if (++$i < $pos) {
- $found->attach($item);
- }
- }
- break;
- case 'gt':
- $i = 0;
- foreach ($matches as $item) {
- if (++$i > $pos) {
- $found->attach($item);
- }
- }
- break;
- }
-
- $this->matches = $found;
- }
-
-
- protected function parseAnB($rule) {
- if ($rule == 'even') {
- return array(2, 0);
- }
- elseif ($rule == 'odd') {
- return array(2, 1);
- }
- elseif ($rule == 'n') {
- return array(1, 0);
- }
- elseif (is_numeric($rule)) {
- return array(0, (int)$rule);
- }
-
- $rule = explode('n', $rule);
- if (count($rule) == 0) {
- throw new CssParseException("nth-child value is invalid.");
- }
- $aVal = (int)trim($rule[0]);
- $bVal = !empty($rule[1]) ? (int)trim($rule[1]) : 0;
- return array($aVal, $bVal);
- }
-
-
- protected function nthChild($groupSize, $elementInGroup, $lastChild = FALSE) {
-
-
-
- $parents = new SplObjectStorage();
- $matches = new SplObjectStorage();
-
- $i = 0;
- foreach ($this->matches as $item) {
- $parent = $item->parentNode;
-
-
-
-
- if (!$parents->contains($parent)) {
-
- $c = 0;
- foreach ($parent->childNodes as $child) {
-
-
-
-
-
- if ($child->nodeType == XML_ELEMENT_NODE && ($this->findAnyElement || $child->tagName == $item->tagName)) {
-
- $child->nodeIndex = ++$c;
- }
- }
-
- $parent->numElements = $c;
- $parents->attach($parent);
- }
-
-
-
- if ($lastChild) {
- $indexToMatch = $item->parentNode->numElements - $item->nodeIndex + 1;
- }
-
- else {
- $indexToMatch = $item->nodeIndex;
- }
-
-
- if ($groupSize == 0) {
- if ($indexToMatch == $elementInGroup)
- $matches->attach($item);
- }
-
-
- else {
- if (($indexToMatch - $elementInGroup) % $groupSize == 0
- && ($indexToMatch - $elementInGroup) / $groupSize >= 0) {
- $matches->attach($item);
- }
- }
-
-
- ++$i;
- }
- $this->matches = $matches;
- }
-
-
-
-
- protected function nthLastChild($groupSize, $elementInGroup) {
-
- $this->nthChild($groupSize, $elementInGroup, TRUE);
- }
-
-
-
-
-
-
- protected function nthOfTypeChild($groupSize, $elementInGroup, $lastChild) {
-
-
-
- $parents = new SplObjectStorage();
- $matches = new SplObjectStorage();
-
- $i = 0;
- foreach ($this->matches as $item) {
- $parent = $item->parentNode;
-
-
-
-
- if (!$parents->contains($parent)) {
-
- $c = 0;
- foreach ($parent->childNodes as $child) {
-
-
- if ($child->nodeType == XML_ELEMENT_NODE && $child->tagName == $item->tagName) {
-
- $child->nodeIndex = ++$c;
- }
- }
-
- $parent->numElements = $c;
- $parents->attach($parent);
- }
-
-
-
- if ($lastChild) {
- $indexToMatch = $item->parentNode->numElements - $item->nodeIndex + 1;
- }
-
- else {
- $indexToMatch = $item->nodeIndex;
- }
-
-
- if ($groupSize == 0) {
- if ($indexToMatch == $elementInGroup)
- $matches->attach($item);
- }
-
-
- else {
- if (($indexToMatch - $elementInGroup) % $groupSize == 0
- && ($indexToMatch - $elementInGroup) / $groupSize >= 0) {
- $matches->attach($item);
- }
- }
-
-
- ++$i;
- }
- $this->matches = $matches;
- }
-
-
- protected function nthLastOfTypeChild($groupSize, $elementInGroup) {
- $this->nthOfTypeChild($groupSize, $elementInGroup, TRUE);
- }
-
-
- protected function lang($value) {
-
-
-
- $operator = (strpos($value, '-') !== FALSE) ? self::isExactly : self::containsWithHyphen;
-
- $orig = $this->matches;
- $origDepth = $this->findAnyElement;
-
-
- $this->attribute('lang', $value, $operator);
- $lang = $this->matches;
-
-
- $this->matches = $orig;
- $this->findAnyElement = $origDepth;
-
-
- $this->attributeNS('lang', 'xml', $value, $operator);
-
-
-
-
-
-
- foreach ($this->matches as $added) $lang->attach($added);
- $this->matches = $lang;
- }
-
-
- protected function not($filter) {
- $matches = $this->candidateList();
-
- $found = new SplObjectStorage();
- foreach ($matches as $item) {
- $handler = new QueryPathCssEventHandler($item);
- $not_these = $handler->find($filter)->getMatches();
- if ($not_these->count() == 0) {
- $found->attach($item);
- }
- }
-
-
- $this->matches = $found;
- }
-
-
- public function has($filter) {
- $matches = $this->candidateList();
-
- $found = new SplObjectStorage();
- foreach ($matches as $item) {
- $handler = new QueryPathCssEventHandler($item);
- $these = $handler->find($filter)->getMatches();
- if (count($these) > 0) {
- $found->attach($item);
- }
- }
- $this->matches = $found;
- return $this;
- }
-
-
- protected function firstOfType() {
- $matches = $this->candidateList();
- $found = new SplObjectStorage();
- foreach ($matches as $item) {
- $type = $item->tagName;
- $parent = $item->parentNode;
- foreach ($parent->childNodes as $kid) {
- if ($kid->nodeType == XML_ELEMENT_NODE && $kid->tagName == $type) {
- if (!$found->contains($kid)) {
- $found->attach($kid);
- }
- break;
- }
- }
- }
- $this->matches = $found;
- }
-
-
- protected function lastOfType() {
- $matches = $this->candidateList();
- $found = new SplObjectStorage();
- foreach ($matches as $item) {
- $type = $item->tagName;
- $parent = $item->parentNode;
- for ($i = $parent->childNodes->length - 1; $i >= 0; --$i) {
- $kid = $parent->childNodes->item($i);
- if ($kid->nodeType == XML_ELEMENT_NODE && $kid->tagName == $type) {
- if (!$found->contains($kid)) {
- $found->attach($kid);
- }
- break;
- }
- }
- }
- $this->matches = $found;
- }
-
-
- protected function onlyChild() {
- $matches = $this->candidateList();
- $found = new SplObjectStorage();
- foreach($matches as $item) {
- $parent = $item->parentNode;
- $kids = array();
- foreach($parent->childNodes as $kid) {
- if ($kid->nodeType == XML_ELEMENT_NODE) {
- $kids[] = $kid;
- }
- }
-
-
- if (count($kids) == 1 && $kids[0] === $item) {
- $found->attach($kids[0]);
- }
- }
- $this->matches = $found;
- }
-
-
- protected function emptyElement() {
- $found = new SplObjectStorage();
- $matches = $this->candidateList();
- foreach ($matches as $item) {
- $empty = TRUE;
- foreach($item->childNodes as $kid) {
-
-
- if ($kid->nodeType == XML_ELEMENT_NODE || $kid->nodeType == XML_TEXT_NODE) {
- $empty = FALSE;
- break;
- }
- }
- if ($empty) {
- $found->attach($item);
- }
- }
- $this->matches = $found;
- }
-
-
- protected function onlyOfType() {
- $matches = $this->candidateList();
- $found = new SplObjectStorage();
- foreach ($matches as $item) {
- if (!$item->parentNode) {
- $this->matches = new SplObjectStorage();
- }
- $parent = $item->parentNode;
- $onlyOfType = TRUE;
-
-
- foreach($parent->childNodes as $kid) {
- if ($kid->nodeType == XML_ELEMENT_NODE
- && $kid->tagName == $item->tagName
- && $kid !== $item) {
-
- $onlyOfType = FALSE;
- break;
- }
- }
-
-
- if ($onlyOfType) $found->attach($item);
- }
- $this->matches = $found;
- }
-
-
- protected function attrValMatches($needle, $haystack, $operation) {
-
- if (strlen($haystack) < strlen($needle)) return FALSE;
-
-
-
-
-
- switch ($operation) {
- case CssEventHandler::isExactly:
- return $needle == $haystack;
- case CssEventHandler::containsWithSpace:
- return in_array($needle, explode(' ', $haystack));
- case CssEventHandler::containsWithHyphen:
- return in_array($needle, explode('-', $haystack));
- case CssEventHandler::containsInString:
- return strpos($haystack, $needle) !== FALSE;
- case CssEventHandler::beginsWith:
- return strpos($haystack, $needle) === 0;
- case CssEventHandler::endsWith:
-
- return preg_match('/' . $needle . '$/', $haystack) == 1;
- }
- return FALSE;
- }
-
-
- public function pseudoElement($name) {
-
- switch ($name) {
-
-
- case 'first-line':
- $matches = $this->candidateList();
- $found = new SplObjectStorage();
- $o = new stdClass();
- foreach ($matches as $item) {
- $str = $item->textContent;
- $lines = explode("\n", $str);
- if (!empty($lines)) {
- $line = trim($lines[0]);
- if (!empty($line))
- $o->textContent = $line;
- $found->attach($o);
- }
- }
- $this->matches = $found;
- break;
-
-
- case 'first-letter':
- $matches = $this->candidateList();
- $found = new SplObjectStorage();
- $o = new stdClass();
- foreach ($matches as $item) {
- $str = $item->textContent;
- if (!empty($str)) {
- $str = substr($str,0, 1);
- $o->textContent = $str;
- $found->attach($o);
- }
- }
- $this->matches = $found;
- break;
- case 'before':
- case 'after':
-
-
- case 'selection':
-
- throw new NotImplementedException("The $name pseudo-element is not implemented.");
- break;
- }
- $this->findAnyElement = FALSE;
- }
- public function directDescendant() {
- $this->findAnyElement = FALSE;
-
- $kids = new SplObjectStorage();
- foreach ($this->matches as $item) {
- $kidsNL = $item->childNodes;
- foreach ($kidsNL as $kidNode) {
- if ($kidNode->nodeType == XML_ELEMENT_NODE) {
- $kids->attach($kidNode);
- }
- }
- }
- $this->matches = $kids;
- }
-
- public function adjacent() {
- $this->findAnyElement = FALSE;
-
-
- $found = new SplObjectStorage();
- foreach ($this->matches as $item) {
- if (isset($item->nextSibling) && $item->nextSibling->nodeType === XML_ELEMENT_NODE) {
- $found->attach($item->nextSibling);
- }
- }
- $this->matches = $found;
- }
-
- public function anotherSelector() {
- $this->findAnyElement = FALSE;
-
- if ($this->matches->count() > 0) {
-
- foreach ($this->matches as $item) $this->alreadyMatched->attach($item);
- }
-
-
- $this->findAnyElement = TRUE;
- $this->matches = new SplObjectStorage();
- $this->matches->attach($this->dom);
- }
-
-
- public function sibling() {
- $this->findAnyElement = FALSE;
-
-
- if ($this->matches->count() > 0) {
- $sibs = new SplObjectStorage();
- foreach ($this->matches as $item) {
-
- while ($item->nextSibling != NULL) {
- $item = $item->nextSibling;
- if ($item->nodeType === XML_ELEMENT_NODE) $sibs->attach($item);
- }
- }
- $this->matches = $sibs;
- }
- }
-
-
- public function anyDescendant() {
-
- $found = new SplObjectStorage();
- foreach ($this->matches as $item) {
- $kids = $item->getElementsByTagName('*');
-
- $this->attachNodeList($kids, $found);
- }
- $this->matches = $found;
-
-
- $this->findAnyElement = TRUE;
- }
-
-
- private function candidateList() {
- if ($this->findAnyElement) {
- return $this->getAllCandidates($this->matches);
- }
- return $this->matches;
- }
-
-
- private function getAllCandidates($elements) {
- $found = new SplObjectStorage();
- foreach ($elements as $item) {
- $found->attach($item);
- $nl = $item->getElementsByTagName('*');
-
- $this->attachNodeList($nl, $found);
- }
- return $found;
- }
-
-
-
- public function attachNodeList(DOMNodeList $nodeList, SplObjectStorage $splos) {
- foreach ($nodeList as $item) $splos->attach($item);
- }
-
- }
- class NotImplementedException extends Exception {}