public function testGetCompiled()
{
Query::setCompiled([]);
$selector = '.post h2';
$xpath = '//*[contains(concat(" ", normalize-space(@class), " "), " post ")]//h2';
$compiled = [$selector => $xpath];
Query::compile($selector);
$this->assertEquals($compiled, Query::getCompiled());
}
public function testGetCompiled()
{
Query::setCompiled([]);
$selector = '#foo .bar baz';
$xpath = '//*[@id="foo"]//*[contains(concat(" ", normalize-space(@class), " "), " bar ")]//baz';
$compiled = [$selector => $xpath];
Query::compile($selector);
$this->assertEquals($compiled, Query::getCompiled());
}
public function testGetCompiled()
{
Query::setCompiled([]);
$selector = '.post h2';
$xpath = "//*[contains(concat(' ', normalize-space(@class), ' '), ' post ')]";
$compiled = [$selector => $xpath];
$xpath = Query::compile($selector);
$compiled = Query::getCompiled();
$this->assertEquals($compiled, Query::getCompiled());
}
public function testGetCompiled()
{
Query::setCompiled([]);
$selector = '.post h2';
$xpath = Query::compile($selector);
$compiled = Query::getCompiled();
$this->assertTrue(is_array($compiled));
$this->assertEquals(1, count($compiled));
$this->assertTrue(array_key_exists($selector, $compiled));
$this->assertEquals($xpath, $compiled[$selector]);
}
/**
* Counts nodes for a given XPath expression or a CSS selector.
*
* @param string $expression XPath expression or CSS selector
* @param string $type The type of the expression
*
* @return int
*/
public function count($expression, $type = Query::TYPE_CSS)
{
$xpath = new DOMXPath($this->document);
$expression = Query::compile($expression, $type);
$expression = sprintf('count(%s)', $expression);
return $xpath->evaluate($expression);
}
/**
* Searches for the element in the DOM tree.
*
* @param string $expression XPath expression or CSS selector
* @param string $type the type of the expression
* @return \DiDom\Element[]|\DOMElement[]
*/
public function find($expression, $type = Query::TYPE_CSS, $wrapElement = true)
{
$expression = Query::compile($expression, $type);
$xpath = new DOMXPath($this->document);
$nodeList = $xpath->query($expression);
$elements = array();
if ($wrapElement) {
foreach ($nodeList as $node) {
$elements[] = new Element($node);
}
} else {
foreach ($nodeList as $node) {
$elements[] = $node;
}
}
return $elements;
}
/**
* Checks that the node matches selector.
*
* @param string $selector CSS selector
* @param bool $strict
*
* @return bool
*/
public function matches($selector, $strict = false)
{
if (!$strict) {
// remove child nodes
$node = $this->node->cloneNode();
if (!$this->node instanceof \DOMElement) {
throw new LogicException('Node must be an instance of DOMElement');
}
$innerHtml = $node->ownerDocument->saveXml($node, LIBXML_NOEMPTYTAG);
$html = "<root>{$innerHtml}</root>";
$selector = 'root > ' . trim($selector);
$document = new Document($html);
return $document->has($selector);
}
$segments = Query::getSegments($selector);
if (!array_key_exists('tag', $segments)) {
throw new RuntimeException(sprintf('Tag name must be specified in %s', $selector));
}
if ($segments['tag'] !== $this->tag and $segments['tag'] !== '*') {
return false;
}
$segments['id'] = array_key_exists('id', $segments) ? $segments['id'] : null;
if ($segments['id'] !== $this->getAttribute('id')) {
return false;
}
$classes = $this->hasAttribute('class') ? explode(' ', trim($this->getAttribute('class'))) : [];
$segments['classes'] = array_key_exists('classes', $segments) ? $segments['classes'] : [];
$diff1 = array_diff($segments['classes'], $classes);
$diff2 = array_diff($classes, $segments['classes']);
if (count($diff1) > 0 or count($diff2) > 0) {
return false;
}
$attributes = $this->attributes();
unset($attributes['id']);
unset($attributes['class']);
$segments['attributes'] = array_key_exists('attributes', $segments) ? $segments['attributes'] : [];
$diff1 = array_diff_assoc($segments['attributes'], $attributes);
$diff2 = array_diff_assoc($attributes, $segments['attributes']);
if (count($diff1) > 0 or count($diff2) > 0) {
return false;
}
return true;
}
/**
* Searches for an item in the DOM tree for a given XPath expression or a CSS selector.
*
* @param string $expression XPath expression or a CSS selector
* @param string $type The type of the expression
* @param bool $wrapElement Returns array of \DiDom\Element if true, otherwise array of \DOMElement
*
* @return \DiDom\Element[]|\DOMElement[]
*/
public function find($expression, $type = Query::TYPE_CSS, $wrapElement = true)
{
$expression = Query::compile($expression, $type);
$xpath = new DOMXPath($this->document);
$xpath->registerNamespace("php", "http://php.net/xpath");
$xpath->registerPhpFunctions();
$nodeList = $xpath->query($expression);
$result = [];
if ($wrapElement) {
foreach ($nodeList as $node) {
$result[] = $this->wrapNode($node);
}
} else {
foreach ($nodeList as $node) {
$result[] = $node;
}
}
return $result;
}
/**
* @param string CSS selector
* @param array
*
* @return NodeList
*/
public function findByRule($selector, $rules, $wrapElement = true)
{
$segments = $selector !== null ? Query::getSegments($selector) : [];
$xpath = Query::buildXpath(array_merge($segments, $rules));
return $this->xpath($xpath, $wrapElement);
}
/**
* Searches for the element in the DOM tree.
*
* @param string $expression XPath expression or CSS selector
* @param string $type the type of the expression
* @return array
*/
public function find($expression, $type = Query::TYPE_CSS)
{
$expression = Query::compile($expression, $type);
$xpath = new DOMXPath($this->document);
$nodeList = $xpath->query($expression);
$elements = array();
foreach ($nodeList as $node) {
$elements[] = new Element($node, $this);
}
return $elements;
}
