themes/nitobe/nitobe_utils.php

<?php
// $Id: nitobe_utils.php,v 1.7 2009/02/28 18:26:20 shannonlucas Exp $
/**
 * @file Utility functions for the Nitobe theme.
 */

define('NITOBE_CACHE_HDR', 'nitobe.headers.list');
define('NITOBE_HEADER_PATH', (is_dir(path_to_theme() . '/headers') ? path_to_theme() : drupal_get_path('theme', 'nitobe')) . '/headers');
define('NITOBE_HEADER_IMG_MASK',
       '/\.jpg$|\.JPG$|\.jpeg*|\.JPEG*|\.gif$|\.GIF$|\.png$|\.PNG$/');

/**
 * Retrieve a list of the images in the headers directory and provide each
 * with a pretty name. Pretty names are generated from the image's path within
 * the headers directory using these rules:
 *    1. '/' is replaced with ' / '
 *    2. '_' is replaced with ' '.
 *    3. '.***' extension is removed.
 *
 * @param $refresh bool If TRUE, reload the image list and flush the cached
 *        version.
 *
 * @return array
 */
function _nitobe_get_header_list($refresh = FALSE) {
  $cached = cache_get(NITOBE_CACHE_HDR);
  $files = (!empty($cached)) ? $cached->data : NULL;

  if (($files == NULL) OR ($refresh == TRUE)) {
    $options = array(
      'recurse' => TRUE,
    );

    $files = file_scan_directory(NITOBE_HEADER_PATH,
                                 NITOBE_HEADER_IMG_MASK,
                                 $options);
    foreach ($files as $filename => $data) {
      $name = substr($filename, strlen(NITOBE_HEADER_PATH) + 1);
      $name = preg_replace('/\//', ' / ', $name);
      $name = preg_replace('/_/', ' ', $name);
      $name = preg_replace('/\.(\w{3,4}$)/', '', $name);

      $data->pretty_name = $name;
    }

    // Cache the list for a week.
    cache_set(NITOBE_CACHE_HDR, $files, 'cache', time() + 604800);
  }

  return $files;
}


/**
 * Generate the JavaScript for rotating the header image.
 *
 * @return string The JavaScript for rotating the header.
 */
function _nitobe_random_header_js() {
  global $base_url;

  $files = _nitobe_get_header_list();
  $names = array();

  foreach ($files as $file => $data) {
    $names[] = $base_url . '/' . $file;
  }

  $name_js = drupal_to_js($names);

  $js = <<<EOJS
<script type="text/javascript">
  jQuery(document).ready(function() {
    var names = {$name_js};
    jQuery('#masthead').css('background-image', 'url(' + names[Math.floor(Math.random() * names.length)] + ')');
  });
</script><noscript></noscript>
EOJS;

  return $js;
}


/**
 * Return the CSS to place inline to choose the header background image.
 *
 * @param string $filename The filename relative to the theme,
 *
 * @return string The CSS to add to the header.
 */
function _nitobe_fixed_header_css($filename) {
  global $base_url;

  $url    = $base_url . '/' . $filename;
  $output = '<style type="text/css">#masthead{background-image:url(%s);}</style>';

  return sprintf($output, $url);
}
1	<?php
2	// $Id: nitobe_utils.php,v 1.7 2009/02/28 18:26:20 shannonlucas Exp $
3	/**
4	* @file Utility functions for the Nitobe theme.
5	*/
6
7	define('NITOBE_CACHE_HDR', 'nitobe.headers.list');
8	define('NITOBE_HEADER_PATH', (is_dir(path_to_theme() . '/headers') ? path_to_theme() : drupal_get_path('theme', 'nitobe')) . '/headers');
9	define('NITOBE_HEADER_IMG_MASK',
10	'/\.jpg$\|\.JPG$\|\.jpeg\|\.JPEG\|\.gif$\|\.GIF$\|\.png$\|\.PNG$/');
11
12	/**
13	* Retrieve a list of the images in the headers directory and provide each
14	* with a pretty name. Pretty names are generated from the image's path within
15	* the headers directory using these rules:
16	* 1. '/' is replaced with ' / '
17	* 2. '_' is replaced with ' '.
18	* 3. '.***' extension is removed.
19	*
20	* @param $refresh bool If TRUE, reload the image list and flush the cached
21	* version.
22	*
23	* @return array
24	*/
25	function _nitobe_get_header_list($refresh = FALSE) {
26	$cached = cache_get(NITOBE_CACHE_HDR);
27	$files = (!empty($cached)) ? $cached->data : NULL;
28
29	if (($files == NULL) OR ($refresh == TRUE)) {
30	$options = array(
31	'recurse' => TRUE,
32	);
33
34	$files = file_scan_directory(NITOBE_HEADER_PATH,
35	NITOBE_HEADER_IMG_MASK,
36	$options);
37	foreach ($files as $filename => $data) {
38	$name = substr($filename, strlen(NITOBE_HEADER_PATH) + 1);
39	$name = preg_replace('/\//', ' / ', $name);
40	$name = preg_replace('/_/', ' ', $name);
41	$name = preg_replace('/\.(\w{3,4}$)/', '', $name);
42
43	$data->pretty_name = $name;
44	}
45
46	// Cache the list for a week.
47	cache_set(NITOBE_CACHE_HDR, $files, 'cache', time() + 604800);
48	}
49
50	return $files;
51	}
52
53
54	/**
55	* Generate the JavaScript for rotating the header image.
56	*
57	* @return string The JavaScript for rotating the header.
58	*/
59	function _nitobe_random_header_js() {
60	global $base_url;
61
62	$files = _nitobe_get_header_list();
63	$names = array();
64
65	foreach ($files as $file => $data) {
66	$names[] = $base_url . '/' . $file;
67	}
68
69	$name_js = drupal_to_js($names);
70
71	$js = <<<EOJS
72	<script type="text/javascript">
73	jQuery(document).ready(function() {
74	var names = {$name_js};
75	jQuery('#masthead').css('background-image', 'url(' + names[Math.floor(Math.random() * names.length)] + ')');
76	});
77	</script><noscript></noscript>
78	EOJS;
79
80	return $js;
81	}
82
83
84	/**
85	* Return the CSS to place inline to choose the header background image.
86	*
87	* @param string $filename The filename relative to the theme,
88	*
89	* @return string The CSS to add to the header.
90	*/
91	function _nitobe_fixed_header_css($filename) {
92	global $base_url;
93
94	$url = $base_url . '/' . $filename;
95	$output = '<style type="text/css">#masthead{background-image:url(%s);}</style>';
96
97	return sprintf($output, $url);
98	}