/**
* @see \qtism\runtime\rendering\markup\xhtml\AbstractXhtmlRenderer::appendChildren()
*/
protected function appendChildren(DOMDocumentFragment $fragment, QtiComponent $component, $base = '')
{
parent::appendChildren($fragment, $component, $base);
// Retrieve the two rendered simpleMatchSets and shuffle if needed.
$currentSet = 0;
$choiceElts = array();
$simpleMatchSetElts = array();
for ($i = 0; $i < $fragment->firstChild->childNodes->length; $i++) {
$n = $fragment->firstChild->childNodes->item($i);
if (Utils::hasClass($n, 'qti-simpleMatchSet') === true) {
$simpleMatchSetElts[] = $n;
$sets = $component->getSimpleMatchSets();
if ($this->getRenderingEngine()->getShufflingPolicy() === AbstractMarkupRenderingEngine::CONTEXT_AWARE && $component->mustShuffle()) {
Utils::shuffle($n, new ShufflableCollection($sets[$currentSet]->getSimpleAssociableChoices()->getArrayCopy()));
}
// Retrieve the two content of the two simpleMatchSets, separately.
$choiceElts[] = Marshaller::getChildElementsByTagName($n, 'li');
$currentSet++;
}
}
// simpleMatchSet class cannot be rendered into a table :/
foreach ($simpleMatchSetElts as $sms) {
$fragment->firstChild->removeChild($sms);
}
$table = $fragment->ownerDocument->createElement('table');
$fragment->firstChild->appendChild($table);
// Build the table header.
$tr = $fragment->ownerDocument->createElement('tr');
$table->appendChild($tr);
// Empty upper left cell.
$tr->appendChild($fragment->ownerDocument->createElement('th'));
$ifVerticalStatementsStorage = array();
for ($i = 0; $i < count($choiceElts[1]); $i++) {
$ifStatements = Utils::extractStatements($choiceElts[1][$i], Utils::EXTRACT_IF);
$incStatements = Utils::extractStatements($choiceElts[1][$i], Utils::EXTRACT_INCLUDE);
if (empty($incStatements) === false) {
$tr->appendChild($incStatements[0]);
}
if (empty($ifStatements) === false) {
$ifVerticalStatementsStorage[$i] = $ifStatements;
$tr->appendChild($ifStatements[0]);
}
$th = XmlUtils::changeElementName($choiceElts[1][$i], 'th');
$tr->appendChild($th);
if (empty($incStatements) === false) {
$th->parentNode->insertBefore($incStatements[1], $th->nextSibling);
}
if (empty($ifStatements) === false) {
$th->parentNode->insertBefore($ifStatements[1], $th->nextSibling);
}
}
// Build all remaining rows.
for ($i = 0; $i < count($choiceElts[0]); $i++) {
$tr = $fragment->ownerDocument->createElement('tr');
$ifStatements = Utils::extractStatements($choiceElts[0][$i], Utils::EXTRACT_IF);
$incStatements = Utils::extractStatements($choiceElts[0][$i], Utils::EXTRACT_INCLUDE);
$th = XmlUtils::changeElementName($choiceElts[0][$i], 'th');
$tr->appendChild($th);
$table->appendChild($tr);
if (empty($incStatements) === false) {
$tr->parentNode->insertBefore($incStatements[0], $tr);
}
if (empty($ifStatements) === false) {
$tr->parentNode->insertBefore($ifStatements[0], $tr);
}
for ($j = 0; $j < count($choiceElts[1]); $j++) {
$input = $fragment->ownerDocument->createElement('input');
$input->setAttribute('type', 'checkbox');
$td = $fragment->ownerDocument->createElement('td');
$td->appendChild($input);
$tr->appendChild($td);
if (isset($ifVerticalStatementsStorage[$j])) {
$td->parentNode->insertBefore($ifVerticalStatementsStorage[$j][0]->cloneNode(), $td);
$td->parentNode->insertBefore($ifVerticalStatementsStorage[$j][1]->cloneNode(), $td->nextSibling);
}
}
if (empty($incStatements) === false && isset($td)) {
$tr->parentNode->insertBefore($incStatements[1], $tr->nextSibling);
}
if (empty($ifStatements) === false && isset($td)) {
$tr->parentNode->insertBefore($ifStatements[1], $tr->nextSibling);
}
}
}
/**
* @see \qtism\runtime\rendering\markup\xhtml\AbstractXhtmlRenderer::appendChildren()
*/
protected function appendChildren(DOMDocumentFragment $fragment, QtiComponent $component, $base = '')
{
parent::appendChildren($fragment, $component, $base);
if ($this->getRenderingEngine()->getShufflingPolicy() === AbstractMarkupRenderingEngine::CONTEXT_AWARE && $component->mustShuffle() === true) {
Utils::shuffle($fragment->firstChild, new ShufflableCollection($component->getSimpleChoices()->getArrayCopy()));
}
// Put the choice elements into an unordered list.
// Dev note: it seems we need a trick ... http://php.net/manual/en/domnode.removechild.php#90292
$choiceElts = $fragment->firstChild->getElementsByTagName('li');
$choiceQueue = array();
$ulElt = $fragment->ownerDocument->createElement('ul');
foreach ($choiceElts as $choiceElt) {
$choiceQueue[] = $choiceElt;
}
foreach ($choiceQueue as $choiceElt) {
$ifStatements = Utils::extractStatements($choiceElt, Utils::EXTRACT_IF);
$incStatements = Utils::extractStatements($choiceElt, Utils::EXTRACT_INCLUDE);
$fragment->firstChild->removeChild($choiceElt);
$ulElt->appendChild($choiceElt);
// Re-append qtism-include/qtism-endinclude.
$statements = Utils::extractStatements($choiceElt, Utils::EXTRACT_INCLUDE);
if (empty($incStatements) === false) {
$choiceElt->parentNode->insertBefore($incStatements[0], $choiceElt);
$choiceElt->parentNode->insertBefore($incStatements[1], $choiceElt->nextSibling);
}
// Re-append qtism-if/qtism-endif.
if (empty($ifStatements) === false) {
$choiceElt->parentNode->insertBefore($ifStatements[0], $choiceElt);
$choiceElt->parentNode->insertBefore($ifStatements[1], $choiceElt->nextSibling);
}
}
$fragment->firstChild->appendChild($ulElt);
}
public function testExtractStatementsIfOnly()
{
$dom = new DOMDocument('1.0', 'UTF-8');
$node = $dom->createElement('fakenode');
$dom->appendChild($node);
$div = $dom->createElement('div');
$node->appendChild($div);
$if = $dom->createComment('qtism-if (true)');
$node->insertBefore($if, $div);
$statements = Utils::extractStatements($div);
$this->assertEquals(array(), $statements);
}
/**
* @see \qtism\runtime\rendering\markup\xhtml\AbstractXhtmlRenderer::appendChildren()
*/
protected function appendChildren(DOMDocumentFragment $fragment, QtiComponent $component, $base = '')
{
parent::appendChildren($fragment, $component, $base);
if ($this->getRenderingEngine()->getShufflingPolicy() === AbstractMarkupRenderingEngine::CONTEXT_AWARE && $component->mustShuffle() === true) {
Utils::shuffle($fragment->firstChild, new ShufflableCollection($component->getSimpleAssociableChoices()->getArrayCopy()));
}
// Put the choice elements into an unordered list.
// Dev note: it seems we need a trick ... http://php.net/manual/en/domnode.removechild.php#90292
// @dev Bwaaaah copy/paste!
$choiceElts = $fragment->firstChild->getElementsByTagName('li');
$choiceQueue = array();
$ulElt = $fragment->ownerDocument->createElement('ul');
foreach ($choiceElts as $choiceElt) {
$choiceQueue[] = $choiceElt;
}
foreach ($choiceQueue as $choiceElt) {
$ifStatements = Utils::extractStatements($choiceElt, Utils::EXTRACT_IF);
$incStatements = Utils::extractStatements($choiceElt, Utils::EXTRACT_INCLUDE);
$fragment->firstChild->removeChild($choiceElt);
$ulElt->appendChild($choiceElt);
if (empty($incStatements) === false) {
$choiceElt->parentNode->insertBefore($incStatements[0], $choiceElt);
$choiceElt->parentNode->insertBefore($incStatements[1], $choiceElt->nextSibling);
}
if (empty($ifStatements) === false) {
$choiceElt->parentNode->insertBefore($ifStatements[0], $choiceElt);
$choiceElt->parentNode->insertBefore($ifStatements[1], $choiceElt->nextSibling);
}
}
$fragment->firstChild->appendChild($ulElt);
// The number of possible associations to display is maxAssociations if the attribute is present and different from 0, otherwise:
//
// * minAssociations, if different from 0 is used to determine the possible associations to display. Otherwise,
// * a single possible association is displayed. Actions to undertake when this first association is done by the candidate depends on the implementation.
// QUESTION: Should we delegate that to implementers decisions i.e. JS libraries to generate as they whish?
// Below is commented code of such a generation directly in the markup...
// At the present time, my feeling is to delegate ...
$nbAssoc = ($assoc = $component->getMaxAssociations()) > 0 ? $assoc : (($assoc = $component->getMinAssociations()) > 0 ? $assoc : 1);
for ($i = 0; $i < $nbAssoc; $i++) {
$associationElt = $fragment->ownerDocument->createElement('div');
$associationElt->setAttribute('class', 'qti-association');
// A container for the first selected option...
$firstElt = $fragment->ownerDocument->createElement('span');
$firstElt->setAttribute('class', 'qti-association-first');
$associationElt->appendChild($firstElt);
// And a second container for the second selected option.
$secondElt = $fragment->ownerDocument->createElement('span');
$secondElt->setAttribute('class', 'qti-association-second');
$associationElt->appendChild($secondElt);
$fragment->firstChild->appendChild($associationElt);
}
}
