<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * Abstract class for the link transformations plugins
 *
 * @package    PhpMyAdmin-Transformations
 * @subpackage Link
 */
if (! defined('PHPMYADMIN')) {
    exit;
}

/* Get the transformations interface */
require_once 'libraries/plugins/TransformationsPlugin.class.php';
/* For PMA_Transformation_globalHtmlReplace */
require_once 'libraries/transformations.lib.php';

/**
 * Provides common methods for all of the link transformations plugins.
 *
 * @package PhpMyAdmin
 */
abstract class TextLinkTransformationsPlugin extends TransformationsPlugin
{
    /**
     * Gets the transformation description of the specific plugin
     *
     * @return string
     */
    public static function getInfo()
    {
        return __(
            'Displays a link; the column contains the filename. The first option'
            . ' is a URL prefix like "http://www.example.com/". The second option'
            . ' is a title for the link.'
        );
    }

    /**
     * Does the actual work of each specific transformations plugin.
     *
     * @param string $buffer  text to be transformed
     * @param array  $options transformation options
     * @param string $meta    meta information
     *
     * @return string
     */
    public function applyTransformation($buffer, $options = array(), $meta = '')
    {

        $append_part = (isset($options[2]) && $options[2]) ? '' : $buffer;

        $transform_options = array (
            'string' => '<a href="'
                . PMA_linkURL((isset($options[0]) ? $options[0] : '') . $append_part)
                . '" title="'
                . htmlspecialchars(isset($options[1]) ? $options[1] : '')
                . '" target="_new">'
                . htmlspecialchars(isset($options[1]) ? $options[1] : $buffer)
                . '</a>'
        );

        return PMA_Transformation_globalHtmlReplace(
            $buffer,
            $transform_options
        );
    }

    /**
     * This method is called when any PluginManager to which the observer
     * is attached calls PluginManager::notify()
     *
     * @param SplSubject $subject The PluginManager notifying the observer
     *                            of an update.
     *
     * @todo implement
     * @return void
     */
    public function update (SplSubject $subject)
    {
        ;
    }


    /* ~~~~~~~~~~~~~~~~~~~~ Getters and Setters ~~~~~~~~~~~~~~~~~~~~ */


    /**
     * Gets the transformation name of the specific plugin
     *
     * @return string
     */
    public static function getName()
    {
        return "TextLink";
    }
}
?>
