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class MyCitations_Plugin {
/**
* @var int
*/
private $citeID;
/**
* @var array
*/
private $citationList;
public function __construct() {
$this->citeID = 0;
}
/**
* Method to call to load actions and shortcodes.
*/
public function load() {
add_shortcode( 'cite', array($this,'cite') );
add_shortcode( 'print_citations', array($this,'printCitations') );
add_filter( 'the_content', array($this,'theContent') );
}
/**
* Adds a citation when this shortcode is used.
*
* @param $atts array Allows "description" and "source" - a URL
* @param $content The text for which a citation is made.
*/
public function cite($atts, $content='') {
$citeID = ++$this->citeID;
if (isset($atts['description']) || isset($atts['source'])) {
$this->addCitation($citeID, $atts);
return $content . sprintf('<sup><a name="text-%1$s"></a> <a href="#citation-%1$s">[%1$s]</a></sup>, $citeID);
} else {
//do nothing
return $content;
}
/**
* Adds a citation to to a footer string.
*
* @param int $citeID The index for this citation.
* @param array $atts An array of attributes that matches the [cite] shortcode.
*/
protected function addCitation($citeID, $atts)
{
$text = '';
if (isset($atts['description'])) {
$text .= $atts['description'] . ' ';
}
if (isset($atts['source'])) {
$text .= sprintf('<a href="%1$s">[%1$s]</a>', $atts['source']);
}
$this->citationList .= sprintf('<div><a name="citation-%1$d"></a>' .
'<a href="#text-%1$d" alt="Citation Origin">%1$d</a><cite>%2$s</cite></div>', $citeID, $text);
}
/**
* Returns a list of citations, if there are any.
*
* @param
public function printCitations()
{
if ($this->citationList) {
return "<div class='citations'>" . $this->citationList . "</div>";
}
return '';
}
public function theContent($content)
{
return $content . '[print-citations]';
}
}
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