181 lines
5.6 KiB
PHP
181 lines
5.6 KiB
PHP
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<?php
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namespace Grav\Plugin;
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use Composer\Autoload\ClassLoader;
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use Grav\Common\Cache;
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use Grav\Common\Language\Language;
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use Grav\Common\Language\LanguageCodes;
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use Grav\Common\Page\Interfaces\PageInterface;
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use Grav\Common\Page\Page;
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use Grav\Common\Page\Pages;
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use \Grav\Common\Plugin;
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class LangSwitcherPlugin extends Plugin
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{
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/**
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* @return array
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*/
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public static function getSubscribedEvents()
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{
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return [
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'onPluginsInitialized' => [
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['autoload', 100001],
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['onPluginsInitialized', 0]
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]
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];
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}
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/**
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* [onPluginsInitialized:100000] Composer autoload.
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*
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* @return ClassLoader
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*/
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public function autoload()
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{
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return require __DIR__ . '/vendor/autoload.php';
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}
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/**
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* Initialize configuration
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*/
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public function onPluginsInitialized()
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{
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if ($this->isAdmin()) {
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$this->active = false;
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return;
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}
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$this->enable([
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'onTwigInitialized' => ['onTwigInitialized', 0],
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'onTwigTemplatePaths' => ['onTwigTemplatePaths', 0],
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'onTwigSiteVariables' => ['onTwigSiteVariables', 0]
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]);
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}
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/** Add the native_name function */
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public function onTwigInitialized()
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{
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$this->grav['twig']->twig()->addFunction(
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new \Twig_SimpleFunction('native_name', function($key) {
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return LanguageCodes::getNativeName($key);
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})
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);
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}
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/**
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* Add current directory to twig lookup paths.
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*/
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public function onTwigTemplatePaths()
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{
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$this->grav['twig']->twig_paths[] = __DIR__ . '/templates';
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}
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/**
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* Generate localized route based on the translated slugs found through the pages hierarchy
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*/
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protected function getTranslatedUrl($lang, $path)
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{
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/** @var Language $language */
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$url = null;
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/** @var Pages $pages */
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$pages = $this->grav['pages'];
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/** @var Language $language */
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$language = $this->grav['language'];
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$language->init();
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$language->setActive($lang);
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$pages->reset();
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$page = $pages->get($path);
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if ($page) {
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$url = $page->url();
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}
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return $url;
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}
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/**
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* Set needed variables to display Langswitcher.
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*/
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public function onTwigSiteVariables()
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{
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/** @var PageInterface $page */
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$page = $this->grav['page'];
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/** @var Pages $pages */
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$pages = $this->grav['pages'];
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/** @var Cache $cache */
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$cache = $this->grav['cache'];
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$data = new \stdClass;
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$data->page_route = $page->rawRoute();
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if ($page->home()) {
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$data->page_route = '/';
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}
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$translated_cache_key = md5('translated_cache_key'.$data->page_route.$pages->getSimplePagesHash());
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$languages = $this->grav['language']->getLanguages();
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$data->languages = $languages;
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if ($this->config->get('plugins.langswitcher.untranslated_pages_behavior') !== 'none') {
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$translated_pages = [];
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foreach ($languages as $language) {
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$translated_pages[$language] = null;
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$page_name_without_ext = substr($page->name(), 0, -(strlen($page->extension())));
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$translated_page_path = $page->path() . DS . $page_name_without_ext . '.' . $language . '.md';
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if (!file_exists($translated_page_path) and $language == $this->grav['language']->getDefault()) {
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$translated_page_path = $page->path() . DS . $page_name_without_ext . '.md';
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}
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if (file_exists($translated_page_path)) {
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$translated_page = new Page();
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$translated_page->init(new \SplFileInfo($translated_page_path), $language . '.md');
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$translated_pages[$language] = $translated_page;
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}
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}
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$data->translated_pages = $translated_pages;
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}
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$language = $this->grav['language'];
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$active = $language->getActive() ?? $language->getDefault();
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if ($this->config->get('plugins.langswitcher.translated_urls', true)) {
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$data->translated_routes = $cache->fetch($translated_cache_key);
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if ($data->translated_routes === false) {
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$translate_langs = $data->languages;
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if (($key = array_search($active, $translate_langs)) !== false) {
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$data->translated_routes[$active] = $page->url();
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unset($translate_langs[$key]);
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}
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foreach ($translate_langs as $lang) {
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$data->translated_routes[$lang] = $this->getTranslatedUrl($lang, $page->path());
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if (is_null($data->translated_routes[$lang])) {
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$data->translated_routes[$lang] = $data->page_route;
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}
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}
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// Reset pages to current active language
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$language->init();
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$language->setActive($active);
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$this->grav['pages']->reset();
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$cache->save($translated_cache_key, $data->translated_routes);
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}
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}
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$data->current = $language->getLanguage();
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$this->grav['twig']->twig_vars['langswitcher'] = $this->grav['langswitcher'] = $data;
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if ($this->config->get('plugins.langswitcher.built_in_css')) {
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$this->grav['assets']->add('plugin://langswitcher/css/langswitcher.css');
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}
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}
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public function getNativeName($code) {
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}
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}
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