1: <?php
 2: /**
 3:  * Wei Framework
 4:  *
 5:  * @copyright   Copyright (c) 2008-2013 Twin Huang
 6:  * @license     http://opensource.org/licenses/mit-license.php MIT License
 7:  */
 8: 
 9: namespace Wei;
10: 
11: /**
12:  * A service to generate assets' URL
13:  *
14:  * @author      Twin Huang <twinhuang@qq.com>
15:  */
16: class Asset extends Base
17: {
18:     /**
19:      * The base URL of assets
20:      *
21:      * @var string
22:      */
23:     protected $baseUrl = '/';
24: 
25:     /**
26:      * The base concat URL of assets
27:      *
28:      * @var string
29:      */
30:     protected $concatUrl = '/concat';
31: 
32:     /**
33:      * The version number append to the URL
34:      *
35:      * @var string
36:      */
37:     protected $version = '1';
38: 
39:     /**
40:      * Returns the asset or concat URL by specified file
41:      *
42:      * @param string $file
43:      * @param bool $version Whether append version or not
44:      * @return string
45:      */
46:     public function __invoke($file, $version = true)
47:     {
48:         if (is_array($file)) {
49:             return $this->concat($file);
50:         } else {
51:             $url = $this->baseUrl . $file;
52:             if ($version && $this->version) {
53:                 $url .= ((false === strpos($url, '?')) ? '?' : '&') . 'v=' . $this->version;
54:             }
55:             return $url;
56:         }
57:     }
58: 
59:     /**
60:      * Returns the concat URL for list of files
61:      *
62:      * @param array $files
63:      * @return string
64:      */
65:     public function concat(array $files)
66:     {
67:         return $this->concatUrl . '?b=' . trim($this->baseUrl, '/') .'&f=' . implode(',', $files);
68:     }
69: 
70:     /**
71:      * Returns the base url of assets
72:      *
73:      * @return string
74:      */
75:     public function getBaseUrl()
76:     {
77:         return $this->baseUrl;
78:     }
79: 
80:     /**
81:      * Sets the base url of assets
82:      *
83:      * @param string $baseUrl
84:      * @return $this
85:      */
86:     public function setBaseUrl($baseUrl)
87:     {
88:         $this->baseUrl = $baseUrl;
89:         return $this;
90:     }
91: }