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<?php |
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/** |
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* Creates a excerpt for the contents of each page (as of Pico v0.9 and older) |
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* |
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* This plugin exists for backward compatibility and is disabled by default. |
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* It gets automatically enabled when {@link PicoDeprecated} is enabled. You |
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* can avoid this by calling {@link PicoExcerpt::setEnabled()}. |
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* |
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* This plugin doesn't do its job very well and depends on |
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* {@link PicoParsePagesContent}, what heavily impacts Pico's performance. You |
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* should either use the Description meta header field or write something own. |
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* Best solution seems to be a filter for twig, see e.g. |
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* {@link https://gist.github.com/james2doyle/6629712}. |
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* |
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* @author Daniel Rudolf |
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* @link http://picocms.org |
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* @license http://opensource.org/licenses/MIT |
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* @version 1.0 |
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*/ |
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class PicoExcerpt extends AbstractPicoPlugin |
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{ |
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/** |
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* This plugin is disabled by default |
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* |
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* @see AbstractPicoPlugin::$enabled |
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*/ |
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protected $enabled = false; |
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/** |
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* This plugin depends on PicoParsePagesContent |
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* |
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* @see PicoParsePagesContent |
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* @see AbstractPicoPlugin::$dependsOn |
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*/ |
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protected $dependsOn = array('PicoParsePagesContent'); |
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/** |
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* Adds the default excerpt length of 50 words to the config |
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* |
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* @see DummyPlugin::onConfigLoaded() |
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*/ |
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public function onConfigLoaded(array &$config) |
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{ |
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if (!isset($config['excerpt_length'])) { |
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$config['excerpt_length'] = 50; |
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} |
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} |
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/** |
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* Creates a excerpt for the contents of each page |
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* |
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* @see PicoExcerpt::createExcerpt() |
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* @see DummyPlugin::onSinglePageLoaded() |
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*/ |
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public function onSinglePageLoaded(array &$pageData) |
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{ |
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if (!isset($pageData['excerpt'])) { |
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$pageData['excerpt'] = $this->createExcerpt( |
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strip_tags($pageData['content']), |
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$this->getConfig('excerpt_length') |
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); |
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} |
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} |
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/** |
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* Helper function to create a excerpt of a string |
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* |
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* @param string $string the string to create a excerpt from |
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* @param int $wordLimit the maximum number of words the excerpt should be long |
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* @return string excerpt of $string |
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*/ |
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protected function createExcerpt($string, $wordLimit) |
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{ |
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$words = explode(' ', $string); |
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if (count($words) > $wordLimit) { |
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return trim(implode(' ', array_slice($words, 0, $wordLimit))) . '…'; |
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} |
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return $string; |
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} |
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} |
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theshka /
Pico
