Skip to content

Commit

Permalink
[DomCrawler] fixed HTML5 form attribute handling
Browse files Browse the repository at this point in the history
  • Loading branch information
@kepten @fabpot
kepten authored and fabpot committed Sep 17, 2013
1 parent b219e0a commit 04e730e
Show file tree
Hide file tree
Showing 2 changed files with 71 additions and 26 deletions.
49 changes: 31 additions & 18 deletions src/Symfony/Component/DomCrawler/Form.php
View file
Original file line number Diff line number Diff line change
Expand Up @@ -366,46 +366,59 @@ protected function setNode(\DOMNode $node)
$this->node = $node;
}

/**
* Adds form elements related to this form.
*
* Creates an internal copy of the submitted 'button' element and
* the form node or the entire document depending on whether we need
* to find non-descendant elements through HTML5 'form' attribute.
*/
private function initialize()
{
$this->fields = new FormFieldRegistry();

$document = new \DOMDocument('1.0', 'UTF-8');
$node = $document->importNode($this->node, true);
$button = $document->importNode($this->button, true);
$root = $document->appendChild($document->createElement('_root'));
$root->appendChild($node);
$root->appendChild($button);
$xpath = new \DOMXPath($document);
$root = $document->appendChild($document->createElement('_root'));

// add descendant elements to the form
$fieldNodes = $xpath->query('descendant::input | descendant::button | descendant::textarea | descendant::select', $root);
foreach ($fieldNodes as $node) {
$this->addField($node, $button);
// add submitted button if it has a valid name
if ($this->button->hasAttribute('name') && $this->button->getAttribute('name')) {
$this->set(new Field\InputFormField($document->importNode($this->button, true)));
}

// find form elements corresponding to the current form by the HTML5 form attribute
// find form elements corresponding to the current form
if ($this->node->hasAttribute('id')) {
// traverse through the whole document
$node = $document->importNode($this->node->ownerDocument->documentElement, true);
$root->appendChild($node);

// corresponding elements are either descendants or have a matching HTML5 form attribute
$formId = Crawler::xpathLiteral($this->node->getAttribute('id'));
$xpath = new \DOMXPath($this->node->ownerDocument);
$fieldNodes = $xpath->query(sprintf('descendant::input[@form=%s] | descendant::button[@form=%s] | descendant::textarea[@form=%s] | descendant::select[@form=%s]', $formId, $formId, $formId, $formId));
$fieldNodes = $xpath->query(sprintf('descendant::input[@form=%s] | descendant::button[@form=%s] | descendant::textarea[@form=%s] | descendant::select[@form=%s] | //form[@id=%s]/input[not(@form)] | //form[@id=%s]/button[not(@form)] | //form[@id=%s]/textarea[not(@form)] | //form[@id=%s]/select[not(@form)]', $formId, $formId, $formId, $formId, $formId, $formId, $formId, $formId), $root);
foreach ($fieldNodes as $node) {
$this->addField($node, $button);
$this->addField($node);
}
} else {
// parent form has no id, add descendant elements only
$node = $document->importNode($this->node, true);
$root->appendChild($node);

// descendant elements with form attribute are not part of this form
$fieldNodes = $xpath->query('descendant::input[not(@form)] | descendant::button[not(@form)] | descendant::textarea[not(@form)] | descendant::select[not(@form)]', $root);
foreach ($fieldNodes as $node) {
$this->addField($node);
}
}
}

private function addField(\DOMNode $node, \DOMNode $button)
private function addField(\DOMNode $node)
{
if (!$node->hasAttribute('name') || !$node->getAttribute('name')) {
return;
}

$nodeName = $node->nodeName;

if ($node === $button) {
$this->set(new Field\InputFormField($node));
} elseif ('select' == $nodeName || 'input' == $nodeName && 'checkbox' == $node->getAttribute('type')) {
if ('select' == $nodeName || 'input' == $nodeName && 'checkbox' == $node->getAttribute('type')) {
$this->set(new Field\ChoiceFormField($node));
} elseif ('input' == $nodeName && 'radio' == $node->getAttribute('type')) {
if ($this->has($node->getAttribute('name'))) {
Expand Down
48 changes: 40 additions & 8 deletions src/Symfony/Component/DomCrawler/Tests/FormTest.php
View file
Original file line number Diff line number Diff line change
Expand Up @@ -90,21 +90,53 @@ public function testConstructorHandlesFormAttribute()
$dom = new \DOMDocument();
$dom->loadHTML('
<html>
<form id="bar">
<input type="submit" form="bar" />
<form id="form_1" action="" method="POST">
<input type="checkbox" name="apples[]" value="1" checked />
<input form="form_2" type="checkbox" name="oranges[]" value="1" checked />
<input form="form_1" type="hidden" name="form_name" value="form_1" />
<input form="form_1" type="submit" name="button_1" value="Capture fields" />
<button form="form_2" type="submit" name="button_2">Submit form_2</button>
</form>
<input form="form_1" type="checkbox" name="apples[]" value="2" checked />
<form id="form_2" action="" method="POST">
<input type="checkbox" name="oranges[]" value="2" checked />
<input type="checkbox" name="oranges[]" value="3" checked />
<input form="form_2" type="hidden" name="form_name" value="form_2" />
<input form="form_1" type="hidden" name="outer_field" value="success" />
<button form="form_1" type="submit" name="button_3">Submit from outside the form</button>
</form>
<input type="submit" form="bar" />
<button />
</html>
');

$nodes = $dom->getElementsByTagName('input');
$inputElements = $dom->getElementsByTagName('input');
$buttonElements = $dom->getElementsByTagName('button');

$form = new Form($nodes->item(0), 'http://example.com');
$this->assertSame($dom->getElementsByTagName('form')->item(0), $form->getFormNode(), 'HTML5-compliant form attribute handled incorrectly');
// Tests if submit buttons are correctly assigned to forms
$form1 = new Form($buttonElements->item(1), 'http://example.com');
$this->assertSame($dom->getElementsByTagName('form')->item(0), $form1->getFormNode(), 'HTML5-compliant form attribute handled incorrectly');

$form1 = new Form($inputElements->item(3), 'http://example.com');
$this->assertSame($dom->getElementsByTagName('form')->item(0), $form1->getFormNode(), 'HTML5-compliant form attribute handled incorrectly');

$form2 = new Form($buttonElements->item(0), 'http://example.com');
$this->assertSame($dom->getElementsByTagName('form')->item(1), $form2->getFormNode(), 'HTML5-compliant form attribute handled incorrectly');

// Tests if form elements are correctly assigned to forms
$values1 = array(
'apples' => array('1', '2'),
'form_name' => 'form_1',
'button_1' => 'Capture fields',
'outer_field' => 'success'
);
$values2 = array(
'oranges' => array('1', '2', '3'),
'form_name' => 'form_2',
'button_2' => '',
);
$this->assertEquals($values1, $form1->getPhpValues(), 'HTML5-compliant form attribute handled incorrectly');
$this->assertEquals($values2, $form2->getPhpValues(), 'HTML5-compliant form attribute handled incorrectly');

$form = new Form($nodes->item(1), 'http://example.com');
$this->assertSame($dom->getElementsByTagName('form')->item(0), $form->getFormNode(), 'HTML5-compliant form attribute handled incorrectly');
}

public function testMultiValuedFields()
Expand Down

0 comments on commit 04e730e

Please sign in to comment.