vv221
9e5c7a32e3
A new MenuItem boolean property is available, $is_active: - its value is true if the link points to the current page - its value is false otherwise
109 lines
3.4 KiB
PHP
109 lines
3.4 KiB
PHP
<?php
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namespace dokuwiki\plugin\childrenpages;
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use dokuwiki\Menu\Item\AbstractItem;
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class MenuItem extends AbstractItem {
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/**
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* @var bool $is_active True if it is a link to the current page
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*/
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public bool $is_active;
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/**
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* Generate a menu item from a passed string
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*
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* @param string $type
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* @param string $label
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* @param bool $strip_namespace
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*/
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public function __construct(
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string $type,
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string $label = '',
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bool $strip_namespace = false
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) {
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$this->type = "childrenpages_$type";
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if ( empty($label) ) {
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$label = ucfirst($type);
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}
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$this->label = $label;
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parent::__construct();
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$this->setTargetFromType($type, $strip_namespace);
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$this->setIsActive();
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}
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/**
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* Set the item target link from its type
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*
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* @param string $type
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* @param bool $strip_namespace
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*/
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protected function setTargetFromType(string $type, bool $strip_namespace) : void {
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global $INFO;
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global $plugin_controller;
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$language = null;
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// If one of the "translate" or "translation" plugins is activated, get the language code for the current page
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if ( ! $plugin_controller->isdisabled('translate') ) {
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$translate_plugin =& $plugin_controller->load('helper', 'translate');
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$language = $translate_plugin->getPageLanguage();
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} elseif ( ! $plugin_controller->isdisabled('translation') ) {
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$translation_plugin =& $plugin_controller->load('helper', 'translation');
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$language = $translation_plugin->getLangPart($INFO['id']);
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}
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// Split path to page
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$page_path = explode(':', $INFO['id']);
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// If the top level namespace is a language one, the children namespace should be inserted inside it
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$is_in_a_lang_namespace = ( $language !== null && $page_path[0] === $language );
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if ( $is_in_a_lang_namespace ) {
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array_shift($page_path);
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}
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// Strip the top level namespace if we are already on a child page
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if ( $strip_namespace ) {
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array_shift($page_path);
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}
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// Build the link target path
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$target_path = [];
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if ( $is_in_a_lang_namespace ) {
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$target_path[] = $language;
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}
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// Add namespace of the target child page, unless the special value "_main" has been used
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// "_main" is used to generate a link back to the main parent page
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if ( $type !== '_main' ) {
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$target_path[] = $type;
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}
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$this->id = implode(':', array_merge($target_path, $page_path));
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$this->params = [];
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}
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/**
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* Set the active status of the link
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*/
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protected function setIsActive() : void {
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global $INFO;
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$current_page_id = $INFO['id'];
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$target_page_id = $this->id;
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$this->is_active = ( $target_page_id === $current_page_id );
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}
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/**
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* Convenience method to get the attributes for constructing an <a> element
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* Parent method is declared in dokuwiki\Menu\Item\AbstractItem
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*
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* @param string|false $classprefix create a class from type with this prefix, false for no class
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*
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* @return array
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*/
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public function getLinkAttributes($classprefix = 'menuitem ') : array {
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$attributes = parent::getLinkAttributes($classprefix);
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// Get already set classes, defaulting to an empty string
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$classes = ( isset($attributes['class']) ) ?
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$attributes['class'] : '';
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// Add an extra class, based on the existence of the target page
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$extra_class = ( page_exists($this->id) ) ?
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'wikilink1' : 'wikilink2';
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$classes = trim("$classes $extra_class");
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// Return the full attributes list, including the updated classes list
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$attributes['class'] = $classes;
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return $attributes;
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}
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}
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