protected function handleStartElement($name, $attribs)
{
switch ($name) {
case 'DOCUMENT':
$this->elementStack[] = new KMLDocument($name, $attribs);
break;
case 'FOLDER':
$parent = end($this->elementStack);
$folder = new KMLFolder($name, $attribs);
$this->elementStack[] = $folder;
// we need to do this before the element is completed
// since this info needs to be available for nested children
if ($parent instanceof KMLFolder) {
$parentCategory = $parent->getId();
$newFolderIndex = count($parent->getChildCategories());
} else {
$parentCategory = $this->dataController->getCategoryId();
$newFolderIndex = count($this->items);
}
$folder->setId(substr(md5($parentCategory . $newFolderIndex), 0, strlen($parentCategory) - 1));
// something unique
break;
case 'STYLE':
$this->elementStack[] = new KMLStyle($name, $attribs);
break;
case 'STYLEMAP':
$style = new KMLStyle($name, $attribs);
$style->setStyleContainer($this);
$this->elementStack[] = $style;
break;
case 'PLACEMARK':
$placemark = new KMLPlacemark($name, $attribs);
$parent = end($this->elementStack);
$placemark->addCategoryId($this->dataController->getCategoryId());
if ($parent instanceof KMLFolder) {
$placemark->addCategoryId($parent->getId());
}
$this->elementStack[] = $placemark;
break;
case 'POINT':
$this->elementStack[] = new KMLPoint($name, $attribs);
break;
case 'LINESTRING':
$this->elementStack[] = new KMLLineString($name, $attribs);
break;
case 'LINEARRING':
$this->elementStack[] = new KMLLinearRing($name, $attribs);
break;
case 'POLYGON':
$this->elementStack[] = new KMLPolygon($name, $attribs);
break;
}
}