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* @license GNU General Public License version 2 or later; see LICENSE.txt */ namespace Joomla\CMS\Component\Router\Rules; \defined('JPATH_PLATFORM') or die; use Joomla\CMS\Component\ComponentHelper; use Joomla\CMS\Component\Router\RouterView; use Joomla\CMS\Language\Multilanguage; /** * Rule to identify the right Itemid for a view in a component * * @since 3.4 */ class MenuRules implements RulesInterface { /** * Router this rule belongs to * * @var RouterView * @since 3.4 */ protected $router; /** * Lookup array of the menu items * * @var array * @since 3.4 */ protected $lookup = array(); /** * Class constructor. * * @param RouterView $router Router this rule belongs to * * @since 3.4 */ public function __construct(RouterView $router) { $this->router = $router; $this->buildLookup(); } /** * Finds the right Itemid for this query * * @param array &$query The query array to process * * @return void * * @since 3.4 */ public function preprocess(&$query) { $active = $this->router->menu->getActive(); /** * If the active item id is not the same as the supplied item id or we have a supplied item id and no active * menu item then we just use the supplied menu item and continue */ if (isset($query['Itemid']) && ($active === null || $query['Itemid'] != $active->id)) { return; } // Get query language $language = isset($query['lang']) ? $query['lang'] : '*'; // Set the language to the current one when multilang is enabled and item is tagged to ALL if (Multilanguage::isEnabled() && $language === '*') { $language = $this->router->app->get('language'); } if (!isset($this->lookup[$language])) { $this->buildLookup($language); } // Check if the active menu item matches the requested query if ($active !== null && isset($query['Itemid'])) { // Check if active->query and supplied query are the same $match = true; foreach ($active->query as $k => $v) { if (isset($query[$k]) && $v !== $query[$k]) { // Compare again without alias if (\is_string($v) && $v == current(explode(':', $query[$k], 2))) { continue; } $match = false; break; } } if ($match) { // Just use the supplied menu item return; } } $needles = $this->router->getPath($query); $layout = isset($query['layout']) && $query['layout'] !== 'default' ? ':' . $query['layout'] : ''; if ($needles) { foreach ($needles as $view => $ids) { $viewLayout = $view . $layout; if ($layout && isset($this->lookup[$language][$viewLayout])) { if (\is_bool($ids)) { $query['Itemid'] = $this->lookup[$language][$viewLayout]; return; } foreach ($ids as $id => $segment) { if (isset($this->lookup[$language][$viewLayout][(int) $id])) { $query['Itemid'] = $this->lookup[$language][$viewLayout][(int) $id]; return; } } } if (isset($this->lookup[$language][$view])) { if (\is_bool($ids)) { $query['Itemid'] = $this->lookup[$language][$view]; return; } foreach ($ids as $id => $segment) { if (isset($this->lookup[$language][$view][(int) $id])) { $query['Itemid'] = $this->lookup[$language][$view][(int) $id]; return; } } } } } // Check if the active menuitem matches the requested language if ($active && $active->component === 'com_' . $this->router->getName() && ($language === '*' || \in_array($active->language, array('*', $language)) || !Multilanguage::isEnabled())) { $query['Itemid'] = $active->id; return; } // If not found, return language specific home link $default = $this->router->menu->getDefault($language); if (!empty($default->id)) { $query['Itemid'] = $default->id; } } /** * Method to build the lookup array * * @param string $language The language that the lookup should be built up for * * @return void * * @since 3.4 */ protected function buildLookup($language = '*') { // Prepare the reverse lookup array. if (!isset($this->lookup[$language])) { $this->lookup[$language] = array(); $component = ComponentHelper::getComponent('com_' . $this->router->getName()); $views = $this->router->getViews(); $attributes = array('component_id'); $values = array((int) $component->id); $attributes[] = 'language'; $values[] = array($language, '*'); $items = $this->router->menu->getItems($attributes, $values); foreach ($items as $item) { if (isset($item->query['view'], $views[$item->query['view']])) { $view = $item->query['view']; $layout = ''; if (isset($item->query['layout'])) { $layout = ':' . $item->query['layout']; } if ($views[$view]->key) { if (!isset($this->lookup[$language][$view . $layout])) { $this->lookup[$language][$view . $layout] = array(); } if (!isset($this->lookup[$language][$view])) { $this->lookup[$language][$view] = array(); } // If menuitem has no key set, we assume 0. if (!isset($item->query[$views[$view]->key])) { $item->query[$views[$view]->key] = 0; } /** * Here it will become a bit tricky * language != * can override existing entries * language == * cannot override existing entries */ if (!isset($this->lookup[$language][$view . $layout][$item->query[$views[$view]->key]]) || $item->language !== '*') { $this->lookup[$language][$view . $layout][$item->query[$views[$view]->key]] = $item->id; $this->lookup[$language][$view][$item->query[$views[$view]->key]] = $item->id; } } else { /** * Here it will become a bit tricky * language != * can override existing entries * language == * cannot override existing entries */ if (!isset($this->lookup[$language][$view . $layout]) || $item->language !== '*') { $this->lookup[$language][$view . $layout] = $item->id; } } } } } } /** * Dummy method to fulfil the interface requirements * * @param array &$segments The URL segments to parse * @param array &$vars The vars that result from the segments * * @return void * * @since 3.4 * @codeCoverageIgnore */ public function parse(&$segments, &$vars) { } /** * Dummy method to fulfil the interface requirements * * @param array &$query The vars that should be converted * @param array &$segments The URL segments to create * * @return void * * @since 3.4 * @codeCoverageIgnore */ public function build(&$query, &$segments) { } }