162 lines
4.0 KiB
PHP
162 lines
4.0 KiB
PHP
<?php
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namespace Grav\Plugin;
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use Composer\Autoload\ClassLoader;
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use Grav\Common\Data;
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use Grav\Common\Page\Collection;
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use Grav\Common\Page\Interfaces\PageInterface;
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use Grav\Common\Plugin;
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use Grav\Common\Uri;
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use RocketTheme\Toolbox\Event\Event;
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class FeedPlugin extends Plugin
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{
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/**
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* @var bool
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*/
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protected $active = false;
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/**
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* @var string
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*/
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protected $type;
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/**
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* @var array
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*/
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protected $feed_config;
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/**
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* @var array
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*/
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protected $valid_types = array('rss','atom');
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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', 100000],
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['onPluginsInitialized', 0],
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],
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'onBlueprintCreated' => ['onBlueprintCreated', 0]
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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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* Activate feed plugin only if feed was requested for the current page.
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*
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* Also disables debugger.
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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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return;
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}
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$this->feed_config = (array) $this->config->get('plugins.feed');
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if ($this->feed_config['enable_json_feed']) {
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$this->valid_types[] = 'json';
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}
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/** @var Uri $uri */
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$uri = $this->grav['uri'];
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$this->type = $uri->extension();
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if ($this->type && in_array($this->type, $this->valid_types)) {
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$this->enable([
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'onPageInitialized' => ['onPageInitialized', 0],
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'onTwigTemplatePaths' => ['onTwigTemplatePaths', 0],
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]);
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}
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}
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/**
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* Initialize feed configuration.
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*/
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public function onPageInitialized()
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{
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$page = $this->grav['page'];
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// Overwrite regular content with feed config, so you can influence the collection processing with feed config
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if (property_exists($page->header(), 'content')) {
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if (isset($page->header()->feed)) {
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$this->feed_config = array_merge($this->feed_config, $page->header()->feed);
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}
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$page->header()->content = array_merge($page->header()->content, $this->feed_config);
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$this->grav['twig']->template = 'feed.' . $this->type . '.twig';
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$this->enable([
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'onCollectionProcessed' => ['onCollectionProcessed', 0],
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]);
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}
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}
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/**
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* Feed consists of all sub-pages.
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*
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* @param Event $event
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*/
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public function onCollectionProcessed(Event $event)
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{
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/** @var Collection $collection */
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$collection = $event['collection']->nonModular();
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foreach ($collection as $slug => $page) {
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$header = $page->header();
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if (isset($header->feed) && !empty($header->feed['skip'])) {
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$collection->remove($page);
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}
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}
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}
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/**
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* Add current directory to twig lookup paths.
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*/
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public function onTwigTemplatePaths()
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{
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$this->grav['twig']->twig_paths[] = __DIR__ . '/templates';
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}
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/**
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* Extend page blueprints with feed configuration options.
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*
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* @param Event $event
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*/
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public function onBlueprintCreated(Event $event)
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{
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static $inEvent = false;
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/** @var Data\Blueprint $blueprint */
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$blueprint = $event['blueprint'];
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$form = $blueprint->form();
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$blog_tab_exists = isset($form['fields']['tabs']['fields']['blog']);
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if (!$inEvent && $blog_tab_exists) {
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$inEvent = true;
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$blueprints = new Data\Blueprints(__DIR__ . '/blueprints/');
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$extends = $blueprints->get('feed');
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$blueprint->extend($extends, true);
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$inEvent = false;
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}
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}
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} |