95 lines
2.3 KiB
PHP
95 lines
2.3 KiB
PHP
<?php
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/**
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* Copyright 2014-2017 Horde LLC (http://www.horde.org/)
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*
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* See the enclosed file COPYING for license information (LGPL). If you
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* did not receive this file, see http://www.horde.org/licenses/lgpl21.
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*
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* @author Michael Slusarz <slusarz@horde.org>
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* @category Horde
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* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
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* @package CssMinify
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*/
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/**
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* Abstract base class for implementing a CSS minification driver.
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*
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* @author Michael Slusarz <slusarz@horde.org>
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* @category Horde
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* @copyright 2014-2017 Horde LLC
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* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
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* @package CssMinify
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*/
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abstract class Horde_CssMinify
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{
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/**
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* Original CSS data.
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*
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* @var mixed
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*/
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protected $_data;
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/**
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* Minification options.
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*
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* @var array
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*/
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protected $_opts = array();
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/**
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* Constructor.
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*
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* @param mixed $css Either a string (the CSS text to compress) or an
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* array of URLs (keys) to filenames (values)
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* containing the CSS data to compress.
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* @param array $opts Additional options. See setOptions().
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*/
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public function __construct($css, array $opts = array())
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{
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if (!is_array($css) && !is_string($css)) {
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throw new InvalidArgumentException('First argument must either be an array or a string.');
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}
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$this->_data = $css;
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$this->setOptions($opts);
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}
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/**
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* @see Horde_CssMinify::minify()
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*/
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public function __toString()
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{
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return $this->minify();
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}
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/**
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* Set minification options.
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*
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* @param array $opts Options:
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* <pre>
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* - logger: (Horde_Log_Logger) Log object to use for log messages.
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* </pre>
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*/
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public function setOptions(array $opts = array())
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{
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$this->_opts = array_merge($this->_opts, $opts);
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// Ensure we have a logger object.
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if (!isset($this->_opts['logger']) ||
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!($this->_opts['logger'] instanceof Horde_Log_Logger)) {
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$this->_opts['logger'] = new Horde_Log_Logger(
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new Horde_Log_Handler_Null()
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);
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}
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}
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/**
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* Return the minified CSS.
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*
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* @return string Minified CSS.
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* @throws Horde_CssMinify_Exception
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*/
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abstract public function minify();
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}
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