Viewing file:  EmoticonHook.php (4.03 KB) -rwxrwxr-x
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<?php
/**
* @copyright 2006-2014, Miles Johnson - http://milesj.me
* @license https://github.com/milesj/decoda/blob/master/license.md
* @link http://milesj.me/code/php/decoda
*/
namespace Decoda\Hook;
use Decoda\Decoda;
use Decoda\Loader\FileLoader;
/**
* Converts smiley faces into emoticon images.
*/
class EmoticonHook extends AbstractHook {
/**
* Configuration.
*
* @type array
*/
protected $_config = array(
'path' => '/images/',
'extension' => 'png'
);
/**
* Mapping of emoticons to smilies.
*
* @type array
*/
protected $_emoticons = array();
/**
* Map of smilies to emoticons.
*
* @type array
*/
protected $_smilies = array();
/**
* Read the contents of the loaders into the emoticons list.
*/
public function startup() {
if ($this->_emoticons) {
return;
}
// Load files from config paths
foreach ($this->getParser()->getPaths() as $path) {
foreach (glob($path . 'emoticons.*') as $file) {
$this->addLoader(new FileLoader($file));
}
}
// Load the contents into the emoticon and smiley list
foreach ($this->getLoaders() as $loader) {
$loader->setParser($this->getParser());
if ($emoticons = $loader->load()) {
foreach ($emoticons as $emoticon => $smilies) {
foreach ($smilies as $smile) {
$this->_smilies[$smile] = $emoticon;
}
}
$this->_emoticons = array_merge($this->_emoticons, $emoticons);
}
}
}
/**
* Parse out the emoticons and replace with images.
*
* @param string $content
* @return string
*/
public function afterParse($content) {
$smilies = $this->getSmilies();
// Build the smilies regex
$smiliesRegex = implode('|', array_map(function ($smile) {
return preg_quote($smile, '/');
}, $smilies));
$pattern = sprintf('/(?:(?<=[\s.;>:)])|^)(%s)/', $smiliesRegex);
$content = preg_replace_callback($pattern, array($this, '_emoticonCallback'), $content);
$pattern = sprintf('/(%s)(?:(?=[\s.&<:(])|$)/', $smiliesRegex);
$content = preg_replace_callback($pattern, array($this, '_emoticonCallback'), $content);
return $content;
}
/**
* Gets the mapping of emoticons and smilies.
*
* @return array
*/
public function getEmoticons() {
return $this->_emoticons;
}
/**
* Returns all available smilies.
*
* @return array
*/
public function getSmilies() {
return array_keys($this->_smilies);
}
/**
* Checks if a smiley is set for the given id.
*
* @param string $smiley
* @return bool
*/
public function hasSmiley($smiley) {
return isset($this->_smilies[$smiley]);
}
/**
* Convert a smiley to an HTML representation.
*
* @param string $smiley
* @param bool $isXhtml
* @return string
*/
public function render($smiley, $isXhtml = true) {
if (!$this->hasSmiley($smiley)) {
return null;
}
$path = sprintf('%s%s.%s',
$this->getConfig('path'),
$this->_smilies[$smiley],
$this->getConfig('extension'));
if ($isXhtml) {
$tpl = '<img class="decoda-emoticon" src="%s" alt="" />';
} else {
$tpl = '<img class="decoda-emoticon" src="%s" alt="">';
}
return sprintf($tpl, $path);
}
/**
* Callback for smiley processing.
*
* @param array $matches
* @return string
*/
protected function _emoticonCallback($matches) {
$smiley = trim($matches[0]);
if (count($matches) === 1 || !$this->hasSmiley($smiley)) {
return $matches[0];
}
return $this->render($smiley, $this->getParser()->getConfig('xhtmlOutput'));
}
}
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