xref: /dokuwiki/inc/StyleUtils.php (revision dcae056a0dc74d47bfa720202e56fec48b1b988f) 
1<?php
2
3namespace dokuwiki;
4
5class StyleUtils
6{
7    /**
8     * Load style ini contents
9     *
10     * Loads and merges style.ini files from template and config and prepares
11     * the stylesheet modes
12     *
13     * @author Andreas Gohr <andi@splitbrain.org>
14     *
15     * @param string $tpl the used template
16     * @param bool   $preview load preview replacements
17     * @return array with keys 'stylesheets' and 'replacements'
18     */
19    public function cssStyleini($tpl, $preview=false) {
20        global $conf;
21
22        $stylesheets = array(); // mode, file => base
23        // guaranteed placeholder => value
24        $replacements = array(
25            '__text__' => "#000",
26            '__background__' => "#fff",
27            '__text_alt__' => "#999",
28            '__background_alt__' => "#eee",
29            '__text_neu__' => "#666",
30            '__background_neu__' => "#ddd",
31            '__border__' => "#ccc",
32            '__highlight__' => "#ff9",
33            '__link__' => "#00f",
34        );
35
36        // load template's style.ini
37        $incbase = tpl_incdir($tpl);
38        $webbase = tpl_basedir($tpl);
39        $ini = $incbase.'style.ini';
40        if(file_exists($ini)){
41            $data = parse_ini_file($ini, true);
42
43            // stylesheets
44            if(is_array($data['stylesheets'])) foreach($data['stylesheets'] as $file => $mode){
45                if (!file_exists($incbase . $file)) {
46                    list($extension, $basename) = array_map('strrev', explode('.', strrev($file), 2));
47                    $newExtension = $extension === 'css' ? 'less' : 'css';
48                    if (file_exists($incbase . $basename . '.' . $newExtension)) {
49                        $stylesheets[$mode][$incbase . $basename . '.' . $newExtension] = $webbase;
50                        if ($conf['allowdebug']) {
51                            msg("Stylesheet $file not found, using $basename.$newExtension instead. Please contact developer of \"{$conf['template']}\" template.", 2);
52                        }
53                        continue;
54                    }
55                }
56                $stylesheets[$mode][$incbase . $file] = $webbase;
57            }
58
59            // replacements
60            if(is_array($data['replacements'])){
61                $replacements = array_merge($replacements, $this->cssFixreplacementurls($data['replacements'],$webbase));
62            }
63        }
64
65        // load configs's style.ini
66        $webbase = DOKU_BASE;
67        $ini = DOKU_CONF."tpl/$tpl/style.ini";
68        $incbase = dirname($ini).'/';
69        if(file_exists($ini)){
70            $data = parse_ini_file($ini, true);
71
72            // stylesheets
73            if(isset($data['stylesheets']) && is_array($data['stylesheets'])) foreach($data['stylesheets'] as $file => $mode){
74                $stylesheets[$mode][$incbase.$file] = $webbase;
75            }
76
77            // replacements
78            if(isset($data['replacements']) && is_array($data['replacements'])){
79                $replacements = array_merge($replacements, $this->cssFixreplacementurls($data['replacements'],$webbase));
80            }
81        }
82
83        // allow replacement overwrites in preview mode
84        if($preview) {
85            $webbase = DOKU_BASE;
86            $ini     = $conf['cachedir'].'/preview.ini';
87            if(file_exists($ini)) {
88                $data = parse_ini_file($ini, true);
89                // replacements
90                if(is_array($data['replacements'])) {
91                    $replacements = array_merge($replacements, $this->cssFixreplacementurls($data['replacements'], $webbase));
92                }
93            }
94        }
95
96        return array(
97            'stylesheets' => $stylesheets,
98            'replacements' => $replacements
99        );
100    }
101
102
103    /**
104     * Amend paths used in replacement relative urls, refer FS#2879
105     *
106     * @author Chris Smith <chris@jalakai.co.uk>
107     *
108     * @param array $replacements with key-value pairs
109     * @param string $location
110     * @return array
111     */
112    protected function cssFixreplacementurls($replacements, $location) {
113        foreach($replacements as $key => $value) {
114            $replacements[$key] = preg_replace('#(url\([ \'"]*)(?!/|data:|http://|https://| |\'|")#','\\1'.$location,$value);
115        }
116        return $replacements;
117    }
118}
119