97 lines
2.8 KiB
PHP
97 lines
2.8 KiB
PHP
<?php
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namespace dokuwiki\Menu;
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use dokuwiki\Extension\Event;
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use dokuwiki\Menu\Item\AbstractItem;
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/**
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* Class AbstractMenu
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*
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* Basic menu functionality. A menu defines a list of AbstractItem that shall be shown.
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* It contains convenience functions to display the menu in HTML, but template authors can also
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* just accesst the items via getItems() and create the HTML as however they see fit.
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*/
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abstract class AbstractMenu implements MenuInterface
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{
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/** @var string[] list of Item classes to load */
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protected $types = [];
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/** @var int the context this menu is used in */
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protected $context = AbstractItem::CTX_DESKTOP;
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/** @var string view identifier to be set in the event */
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protected $view = '';
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/**
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* AbstractMenu constructor.
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*
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* @param int $context the context this menu is used in
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*/
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public function __construct($context = AbstractItem::CTX_DESKTOP)
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{
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$this->context = $context;
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}
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/**
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* Get the list of action items in this menu
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*
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* @return AbstractItem[]
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* @triggers MENU_ITEMS_ASSEMBLY
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*/
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public function getItems()
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{
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$data = ['view' => $this->view, 'items' => []];
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Event::createAndTrigger('MENU_ITEMS_ASSEMBLY', $data, [$this, 'loadItems']);
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return $data['items'];
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}
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/**
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* Default action for the MENU_ITEMS_ASSEMBLY event
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*
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* @param array $data The plugin data
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* @see getItems()
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*/
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public function loadItems(&$data)
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{
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foreach ($this->types as $class) {
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try {
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$class = "\\dokuwiki\\Menu\\Item\\$class";
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/** @var AbstractItem $item */
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$item = new $class();
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if (!$item->visibleInContext($this->context)) continue;
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$data['items'][] = $item;
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} catch (\RuntimeException $ignored) {
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// item not available
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}
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}
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}
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/**
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* Generate HTML list items for this menu
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*
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* This is a convenience method for template authors. If you need more fine control over the
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* output, use getItems() and build the HTML yourself
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*
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* @param string|false $classprefix create a class from type with this prefix, false for no class
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* @param bool $svg add the SVG link
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* @return string
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*/
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public function getListItems($classprefix = '', $svg = true)
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{
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$html = '';
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foreach ($this->getItems() as $item) {
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if ($classprefix !== false) {
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$class = ' class="' . $classprefix . $item->getType() . '"';
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} else {
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$class = '';
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}
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$html .= "<li$class>";
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$html .= $item->asHtmlLink(false, $svg);
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$html .= '</li>';
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}
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return $html;
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}
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}
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