/**
* Reorder menu based on position attribute
*
* @param ItemInterface $menu
*/
protected function sort(ItemInterface $menu)
{
if ($menu->hasChildren() && $menu->getDisplayChildren()) {
$orderedChildren = [];
$unorderedChildren = [];
$hasOrdering = false;
$children = $menu->getChildren();
foreach ($children as &$child) {
if ($child->hasChildren() && $child->getDisplayChildren()) {
$this->sort($child);
}
$position = $child->getExtra('position');
if ($position !== null) {
$orderedChildren[$child->getName()] = (int) $position;
$hasOrdering = true;
} else {
$unorderedChildren[] = $child->getName();
}
}
if ($hasOrdering) {
asort($orderedChildren);
$menu->reorderChildren(array_merge(array_keys($orderedChildren), $unorderedChildren));
}
}
}
/**
* @param \Knp\Menu\ItemInterface $item
* @param $attributes
* @param $options
* @return \Nette\Utils\Html|null
*/
protected function getList(ItemInterface $item, $attributes, $options)
{
if (!$item->hasChildren() || 0 === $options['depth'] || !$item->getDisplayChildren()) {
return null;
}
$list = Html::el('ul', $attributes);
foreach ($this->getChildren($item, $options) as $child) {
$list->add($child);
}
return $list;
}
protected function renderList(ItemInterface $item, array $attributes, array $options)
{
/**
* Return an empty string if any of the following are true:
* a) The menu has no children eligible to be displayed
* b) The depth is 0
* c) This menu item has been explicitly set to hide its children
*/
if (!$item->hasChildren() || 0 === $options['depth'] || !$item->getDisplayChildren()) {
return '';
}
$html = $this->format('<ul>', 'ul', $item->getLevel(), $options);
$html .= $this->renderChildren($item, $options);
$html .= $this->format('</ul>', 'ul', $item->getLevel(), $options);
return $html;
}
/**
* @see RendererInterface::render
*/
public function render(ItemInterface $item, array $options = array())
{
$options = array_merge($this->getDefaultOptions(), $options);
/**
* Return an empty string if any of the following are true:
* a) The menu has no children eligible to be displayed
* b) The depth is 0
* c) This menu item has been explicitly set to hide its children
*/
if (!$item->hasChildren() || 0 === $options['depth'] || !$item->getDisplayChildren()) {
return '';
}
$html = $this->format('<ul'.$this->renderHtmlAttributes($item->getAttributes()).'>', 'ul', $item->getLevel());
$html .= $this->renderChildren($item, $options);
$html .= $this->format('</ul>', 'ul', $item->getLevel());
return $html;
}
/**
* Concats the appropriate classes for menu links
*
* @param ItemInterface $item
* @param MatcherInterface $matcher
* @param array $options
*/
public function buildClasses(ItemInterface &$item, MatcherInterface &$matcher, $options)
{
$showChildren = $item->hasChildren() && $item->getDisplayChildren();
$isAncestor = $matcher->isAncestor($item, $options["matchingDepth"]);
$isCurrent = $matcher->isCurrent($item);
$class = $item->getAttribute("class");
$classes = $class ? " {$class}" : "";
$classes .= $isCurrent ? " {$options["currentClass"]}" : "";
$classes .= $isAncestor ? " {$options["ancestorClass"]}" : "";
$classes .= $isAncestor && $this->invisibleChildSelected($item, $matcher) ? " {$options["currentClass"]}" : "";
$classes .= $item->actsLikeFirst() ? " {$options["firstClass"]}" : "";
$classes .= $item->actsLikeLast() ? " {$options["lastClass"]}" : "";
$item->setAttribute("class", trim($classes));
}
/**
* @param ItemInterface $item
* @param integer|null $depth the depth until which children should be exported (null means unlimited)
*
* @return array
*/
public function toArray(ItemInterface $item, $depth = null)
{
$array = array('name' => $item->getName(), 'label' => $item->getLabel(), 'uri' => $item->getUri(), 'attributes' => $item->getAttributes(), 'labelAttributes' => $item->getLabelAttributes(), 'linkAttributes' => $item->getLinkAttributes(), 'childrenAttributes' => $item->getChildrenAttributes(), 'extras' => $item->getExtras(), 'display' => $item->isDisplayed(), 'displayChildren' => $item->getDisplayChildren(), 'current' => $item->isCurrent());
// export the children as well, unless explicitly disabled
if (0 !== $depth) {
$childDepth = null === $depth ? null : $depth - 1;
$array['children'] = array();
foreach ($item->getChildren() as $key => $child) {
$array['children'][$key] = $this->toArray($child, $childDepth);
}
}
return $array;
}
