/**
* Processes the opt:if node.
* @internal
* @param Opt_Xml_Node $node The recognized node.
*/
public function processNode(Opt_Xml_Node $node)
{
$params = array('test' => array(0 => self::REQUIRED, self::EXPRESSION));
switch ($node->getName()) {
case 'if':
$this->_extractAttributes($node, $params);
$node->addAfter(Opt_Xml_Buffer::TAG_BEFORE, ' if(' . $params['test'] . '){ ');
$node->addBefore(Opt_Xml_Buffer::TAG_AFTER, ' } ');
$node->sort(array('*' => 0, 'opt:elseif' => 1, 'opt:else' => 2));
$this->_process($node);
break;
case 'else-if':
if ($node->getParent()->getName() == 'if') {
$this->_extractAttributes($node, $params);
$node->addBefore(Opt_Xml_Buffer::TAG_BEFORE, ' } elseif(' . $params['test'] . '){ ');
$this->_process($node);
} else {
throw new Opt_InstructionInvalidParent_Exception($node->getXmlName(), 'opt:if');
}
break;
case 'else':
if ($node->getParent()->getName() == 'if') {
$node->addBefore(Opt_Xml_Buffer::TAG_BEFORE, '}else{ ');
$this->_process($node);
} else {
throw new Opt_InstructionInvalidParent_Exception($node->getXmlName(), 'opt:if');
}
break;
}
}
/**
* Processes the opt:component, opt:on-event and opt:display nodes.
* @internal
* @param Opt_Xml_Node $node The recognized node.
*/
public function processNode(Opt_Xml_Node $node)
{
switch ($node->getName()) {
case 'component':
$node->set('component', true);
// Undefined component processing
$params = array('from' => array(self::REQUIRED, self::EXPRESSION, null), 'datasource' => array(self::OPTIONAL, self::EXPRESSION, null), 'template' => array(self::OPTIONAL, self::ID, null), '__UNKNOWN__' => array(self::OPTIONAL, self::EXPRESSION, null));
$vars = $this->_extractAttributes($node, $params);
$this->_stack->push($params['from']);
$mainCode = ' if(is_object(' . $params['from'] . ') && ' . $params['from'] . ' instanceof Opt_Component_Interface){ ' . $params['from'] . '->setView($this); ';
if (!is_null($params['datasource'])) {
$mainCode .= $params['from'] . '->setDatasource(' . $params['datasource'] . '); ';
}
$mainCode .= $this->_commonProcessing($node, $params['from'], $params, $vars);
$node->addBefore(Opt_Xml_Buffer::TAG_BEFORE, $mainCode);
$node->addAfter(Opt_Xml_Buffer::TAG_AFTER, ' } ');
break;
case 'onEvent':
if ($this->_stack->count() == 0) {
throw new Opt_ComponentNotActive_Exception($node->getXmlName());
}
$tagParams = array('name' => array(self::REQUIRED, self::EXPRESSION));
$this->_extractAttributes($node, $tagParams);
$node->addAfter(Opt_Xml_Buffer::TAG_BEFORE, ' if(' . $this->_stack->top() . '->processEvent(' . $tagParams['name'] . ')){ ');
$node->addAfter(Opt_Xml_Buffer::TAG_AFTER, ' } ');
$this->_process($node);
break;
case 'display':
if ($this->_stack->count() == 0) {
throw new Opt_ComponentNotActive_Exception($node->getXmlName());
}
$node->set('hidden', false);
$node->removeChildren();
// The opt:display attributes must be packed into array and sent
// to Opt_Component_Interface::display()
$subCode = '';
if ($node->hasAttributes()) {
$params = array('__UNKNOWN__' => array(self::OPTIONAL, self::EXPRESSION, null));
$vars = $this->_extractAttributes($node, $params);
$subCode = 'array(';
foreach ($vars as $name => $value) {
$subCode .= '\'' . $name . '\' => ' . $value . ',';
}
$subCode .= ')';
}
$node->addAfter(Opt_Xml_Buffer::TAG_BEFORE, $this->_stack->top() . '->display(' . $subCode . '); ');
break;
}
}
/**
* Processes the opt:foreach node.
* @internal
* @param Opt_Xml_Node $node The recognized node.
*/
public function processNode(Opt_Xml_Node $node)
{
switch ($node->getName()) {
case 'foreach':
$params = array('array' => array(0 => self::REQUIRED, self::EXPRESSION), 'value' => array(0 => self::REQUIRED, self::ID), 'index' => array(0 => self::OPTIONAL, self::ID, null), 'separator' => array(0 => self::OPTIONAL, self::EXPRESSION, null));
$this->_extractAttributes($node, $params);
$this->_nesting++;
$node->sort(array('*' => 0, 'opt:foreachelse' => 1));
$list = $node->getElementsByTagNameNS('opt', 'foreachelse', false);
$codeBegin = ' foreach(' . $params['array'] . ' as ' . (!is_null($params['index']) ? '$__fe' . $this->_nesting . '_idx => ' : '') . '$__fe' . $this->_nesting . '_val){ ';
switch (sizeof($list)) {
case 0:
break;
case 1:
$codeBegin = 'if(sizeof(' . $params['array'] . ') > 0){ ' . $codeBegin;
break;
default:
throw new Opt_InstructionTooManyItems_Exception('opt:foreachelse', $node->getXmlName());
}
$node->addBefore(Opt_Xml_Buffer::TAG_BEFORE, $codeBegin);
$node->addAfter(Opt_Xml_Buffer::TAG_AFTER, ' } ');
$this->_compiler->setConversion('##var_' . $params['value'], '$__fe' . $this->_nesting . '_val');
if (!is_null($params['index'])) {
$this->_compiler->setConversion('##var_' . $params['index'], '$__fe' . $this->_nesting . '_idx');
}
$this->processSeparator('$__foreach_' . $this->_nesting, $params['separator'], $node);
$node->set('postprocess', true);
$this->_process($node);
$node->set('params', $params);
break;
case 'foreachelse':
if ($node->getParent()->getName() != 'foreach') {
throw new Opt_InstructionInvalidParent_Exception($node->getXmlName(), 'opt:foreach');
}
$node->addAfter(Opt_Xml_Buffer::TAG_BEFORE, '} } else { ');
$this->_process($node);
break;
}
}
/**
* This method is called automatically for each XML element that the
* processor has registered during the postprocessing, if the instruction
* requested this by setting the "postprocess" variable to "true" in the
* node. It can handle many instructions tags, and
* the default implementation redirects the processing to the private
* user-created methods _postprocessTagName for "opt:tagName".
*
* @param Opt_Xml_Node $node The node to be postprocessed.
*/
public function postprocessNode(Opt_Xml_Node $node)
{
$name = '_postprocess' . ucfirst($node->getName());
$this->{$name}($node);
}
