/[drupal]/contributions/modules/conditional_styles/conditional_styles.theme.inc
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revision 1.3, Sun Sep 14 10:06:03 2008 UTC revision 1.4, Sun Sep 14 23:26:47 2008 UTC
# Line 1  Line 1 
1  <?php  <?php
2  // $Id: conditional_styles.theme.inc,v 1.2 2008/09/14 09:57:17 johnalbin Exp $  // $Id: conditional_styles.theme.inc,v 1.3 2008/09/14 10:06:03 johnalbin Exp $
3    
4  /**  /**
5   * @file   * @file
# Line 19  Line 19 
19  function conditional_styles_paths_to_basetheme($theme) {  function conditional_styles_paths_to_basetheme($theme) {
20    static $theme_paths;    static $theme_paths;
21    if (empty($theme_paths[$theme])) {    if (empty($theme_paths[$theme])) {
     // Find all the base themes and their paths.  
     $curr = $theme;  
     $themes = list_themes();  
22      $theme_paths[$theme] = array();      $theme_paths[$theme] = array();
23      do {      $themes = list_themes();
24        // Save the theme name and the path.      // Grab the paths from the base theme.
25        $theme_paths[$theme][$curr] = dirname($themes[$curr]->filename);      if (!empty($themes[$theme]->base_theme)) {
26      } while (!empty($themes[$theme][$curr]->base_theme) && $curr = $themes[$theme][$curr]->base_theme);        $theme_paths[$theme] = conditional_styles_paths_to_basetheme($themes[$theme]->base_theme);
27      // Sort into base-theme-to-active-theme order.      }
28      $theme_paths[$theme] = array_reverse($theme_paths[$theme], TRUE);      $theme_paths[$theme][$theme] = dirname($themes[$theme]->filename);
29     }    }
30    return $theme_paths[$theme];    return $theme_paths[$theme];
31  }  }
32    
# Line 37  function conditional_styles_paths_to_bas Line 34  function conditional_styles_paths_to_bas
34   * When the theme registry is rebuilt, we also build the conditional stylesheets.   * When the theme registry is rebuilt, we also build the conditional stylesheets.
35   */   */
36  function _conditional_styles_theme($existing, $type, $theme, $path) {  function _conditional_styles_theme($existing, $type, $theme, $path) {
37    // Process the conditional stylesheets.    // @TODO: For PHP 4 compatibility we use foreach (array_keys($array) AS $key).
38      // When PHP 5 becomes required (Drupal 7.x), use the following faster
39      // implementation: foreach ($array AS $key => &$value) {}
40    
41      // Process the conditional stylesheets for every active theme.
42    $themes = list_themes();    $themes = list_themes();
43    $paths = conditional_styles_paths_to_basetheme($theme);    foreach (array_keys($themes) AS $theme) {
44        // We only need to process active themes.
45        if ($themes[$theme]->status) {
46          $paths = conditional_styles_paths_to_basetheme($theme);
47    
48    // Grab all the conditional stylesheets.        // Grab all the conditional stylesheets.
49    $stylesheets = array();        $stylesheets = array();
50    // Start with the base theme and travel up the chain to the active theme.        // Start with the base theme and travel up the chain to the active theme.
51    foreach ($paths AS $theme_name => $path) {        foreach ($paths AS $theme_name => $path) {
52      // Look at the conditional-stylesheets defined in the theme's .info file.          // Look at the conditional-stylesheets defined in the theme's .info file.
53      if (!empty($themes[$theme_name]->info['conditional-stylesheets'])) {          if (!empty($themes[$theme_name]->info['conditional-stylesheets'])) {
54        foreach ($themes[$theme_name]->info['conditional-stylesheets'] AS $condition => $css) {            foreach ($themes[$theme_name]->info['conditional-stylesheets'] AS $condition => $css) {
55          // Allow the theme to override its base themes' styles.              // Allow the theme to override its base themes' styles.
56          foreach ($css AS $media => $files) {              foreach ($css AS $media => $files) {
57            foreach ($files AS $file) {                foreach ($files AS $file) {
58              $stylesheets[$condition][$media][$file] = $path;                  $stylesheets[$condition][$media][$file] = $path;
59                  }
60                }
61            }            }
62          }          }
63        }        }
64      }        // Render the stylesheets to link elements.
65    }        $conditional_styles = '';
66    // Render the stylesheets to link elements.        if (!empty($stylesheets)) {
67    $conditional_styles = '';          $query_string = '?'. substr(variable_get('css_js_query_string', '0'), 0, 1);
68    if (!empty($stylesheets)) {          $base_path = base_path();
69      $query_string = '?'. substr(variable_get('css_js_query_string', '0'), 0, 1);          foreach ($stylesheets AS $condition => $css) {
70      $base_path = base_path();            // Each condition requires its own set of links.
71      foreach ($stylesheets AS $condition => $css) {            $output = '';
72        // Each condition requires its own set of links.            foreach ($css AS $media => $files) {
73        $output = '';              foreach ($files AS $file => $path) {
74        foreach ($css AS $media => $files) {                // Don't allow non-existent stylesheets to clutter the logs with 404.
75          foreach ($files AS $file => $path) {                if (file_exists("./$path/$file")) {
76            // Don't allow non-existent stylesheets to clutter the logs with 404.                  $output .= "<link type=\"text/css\" rel=\"stylesheet\" media=\"$media\" href=\"$base_path$path/$file$query_string\" />\n";
77            if (file_exists("./$path/$file")) {                }
78              $output .= "<link type=\"text/css\" rel=\"stylesheet\" media=\"$media\" href=\"$base_path$path/$file$query_string\" />\n";              }
79              }
80              if ($output) {
81                $conditional_styles .= "<!--[$condition]>\n$output<![endif]-->\n";
82            }            }
83          }          }
84        }        }
85        if ($output) {        // Save the stylesheets for later retrieval.
86          $conditional_styles .= "<!--[$condition]>\n$output<![endif]-->\n";        if ($conditional_styles) {
87            variable_set('conditional_styles_' . $theme, $conditional_styles);
88          }
89          else {
90            variable_del('conditional_styles_' . $theme);
91        }        }
92      }      }
93    }    }
94    // Save the stylesheets for later retrieval.  
   if ($conditional_styles) {  
     variable_set('conditional_styles_' . $theme, $conditional_styles);  
   }  
   else {  
     variable_del('conditional_styles_' . $theme);  
   }  
95    // Return nothing.    // Return nothing.
96    return array();    return array();
97  }  }
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