src/style.php

   1 <?php
   2
   3 /**
   4  * Style sheet script
   5  *
   6  * Script processes GET arguments and generates CSS output from stylesheet.tpl,
   7  * which is defined in each template set.
   8  *
   9  * Used GET arguments:
  10  * <ul>
  11  *   <li>themeid - string, sets theme file from themes/*.php
  12  *   <li>templateid - string, sets template set ID
  13  *   <li>fontset - string, sets selected set of fonts from $fontsets array.
  14  *   <li>fontsize - integer, sets selected font size
  15  *   <li>dir - string, sets text direction variables. Possible values 'rtl' or 'ltr'
  16  * </ul>
  17  * @copyright &copy; 2005-2007 The SquirrelMail Project Team
  18  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
  19  * @version $Id$
  20  * @package squirrelmail
  21  */
  22
  23 /** This is the style page */
  24 define('PAGE_NAME', 'style');
  25
  26 /**
  27  * Set the location in order to skip unneeded validation and other includes
  28  * in the SquirrelMail initialisation file.
  29  */
  30 $sInitLocation = 'style';
  31
  32 /**
  33  * Include the SquirrelMail initialization file.
  34  */
  35 require('../include/init.php');
  36
  37 /* safety check for older config.php */
  38 if (!isset($fontsets) || !is_array($fontsets)) {
  39     $fontsets=array();
  40 }
  41
  42
  43 /**
  44  * The following code should no longer be neccesary, but it will remain for the
  45  * time being, just in case.
  46  *
  47  * TODO: Remove if no longer needed.
  48  **/
  49 /* set default colors in case color theme is not full */
  50 $color = array();
  51 $color[0]   = '#dcdcdc'; // (light gray)     TitleBar
  52 $color[1]   = '#800000'; // (red)
  53 $color[2]   = '#cc0000'; // (light red)      Warning/Error Messages
  54 $color[3]   = '#a0b8c8'; // (green-blue)     Left Bar Background
  55 $color[4]   = '#ffffff'; // (white)          Normal Background
  56 $color[5]   = '#ffffcc'; // (light yellow)   Table Headers
  57 $color[6]   = '#000000'; // (black)          Text on left bar
  58 $color[7]   = '#0000cc'; // (blue)           Links
  59 $color[8]   = '#000000'; // (black)          Normal text
  60 $color[9]   = '#ababab'; // (mid-gray)       Darker version of #0
  61 $color[10]  = '#666666'; // (dark gray)      Darker version of #9
  62 $color[11]  = '#770000'; // (dark red)       Special Folders color
  63 $color[12]  = '#ededed'; // (light gray)     Alternate color for message list
  64 $color[13]  = '#800000'; // (dark red)       Color for quoted text -- > 1 quote
  65 $color[14]  = '#ff0000'; // (red)            Color for quoted text -- >> 2 or more
  66 $color[15]  = '#002266'; // (dark blue)      Unselectable folders
  67 $color[16]  = '#ff9933'; // (orange)         Highlight color
  68
  69 /**
  70  * set color constants in order to use simple names instead of color array
  71  * 0 - SQM_TEXT_DISABLED, SQM_TITLE_BACKGROUND, SQM_BUTTON_BACKGROUND_DISABLED,
  72  *     SQM_ROW_BACKGROUND_1
  73  * 1 -
  74  * 2 - SQM_ERROR_TEXT
  75  * 3 - SQM_BACKGROUND_LEFT
  76  * 4 - SQM_BACKGROUND
  77  * 5 - SQM_ROW_BACKGROUND_HIGHLIGHT, SQM_COLUMN_HEADER_BACKGROUND
  78  * 6 - SQM_TEXT_STANDARD_LEFT
  79  * 7 - SQM_TITLE_TEXT, SQM_BLOCK_TITLE_TEXT
  80  * 8 - SQM_TEXT_STANDARD, SQM_BUTTON_TEXT, SQM_BLOCK_TEXT, SQM_ROW_TEXT_1,
  81  *     SQM_ROW_TEXT_2, SQM_ROW_TEXT_HIGHLIGHT, SQM_ROW_TEXT_SELECTED,
  82  *     SQM_COLUMN_HEADER_TEXT
  83  * 9 - SQM_BUTTON_BACKGROUND
  84  * 10 - SQM_BLOCK_TITLE
  85  * 11 - SQM_TEXT_SPECIAL
  86  * 12 - SQM_BUTTON_BACKGROUND_TEXT, SQM_BLOCK_BACKGROUND, SQM_ROW_BACKGROUND_2
  87  * 13 - SQM_MESSAGE_QUOTE_1
  88  * 14 - SQM_MESSAGE_QUOTE_2
  89  * 15 - SQM_TEXT_HIGHLIGHT
  90  * 16 - SQM_ROW_BACKGROUND_SELECTED
  91  */
  92 define('SQM_BACKGROUND',$color[4]);
  93 define('SQM_BACKGROUND_LEFT',$color[3]);
  94
  95 define('SQM_TEXT_STANDARD',$color[8]);
  96 define('SQM_TEXT_STANDARD_LEFT',$color[6]);
  97 define('SQM_TEXT_HIGHLIGHT',$color[15]);
  98 define('SQM_TEXT_DISABLED',$color[0]);
  99 define('SQM_TEXT_SPECIAL',$color[11]);
 100
 101 define('SQM_LINK',$color[7]);
 102 define('SQM_LINK_LEFT',$color[6]);
 103
 104 define('SQM_TITLE_BACKGROUND',$color[0]);
 105 define('SQM_TITLE_TEXT',$color[7]);
 106
 107 define('SQM_BUTTON_BACKGROUND',$color[9]);
 108 define('SQM_BUTTON_TEXT',$color[8]);
 109 define('SQM_BUTTON_BACKGROUND_DISABLED',$color[0]);
 110 define('SQM_BUTTON_BACKGROUND_TEXT',$color[12]);
 111
 112 define('SQM_BLOCK_BACKGROUND',$color[12]);
 113 define('SQM_BLOCK_TEXT',$color[8]);
 114 define('SQM_BLOCK_TITLE',$color[10]);
 115 define('SQM_BLOCK_TITLE_TEXT',$color[7]);
 116
 117 define('SQM_ROW_BACKGROUND_1',$color[0]);
 118 define('SQM_ROW_BACKGROUND_2',$color[12]);
 119 define('SQM_ROW_TEXT_1',$color[8]);
 120 define('SQM_ROW_TEXT_2',$color[8]);
 121 define('SQM_ROW_BACKGROUND_HIGHLIGHT',$color[5]);
 122 define('SQM_ROW_TEXT_HIGHLIGHT',$color[8]);
 123 define('SQM_ROW_BACKGROUND_SELECTED',$color[16]);
 124 define('SQM_ROW_TEXT_SELECTED',$color[8]);
 125
 126 define('SQM_COLUMN_HEADER_BACKGROUND',$color[5]);
 127 define('SQM_COLUMN_HEADER_TEXT',$color[8]);
 128
 129 define('SQM_MESSAGE_QUOTE_1',$color[13]);
 130 define('SQM_MESSAGE_QUOTE_2',$color[14]);
 131
 132 define('SQM_ERROR_TEXT',$color[2]);
 133
 134 define('SQM_ALIGN_LEFT', $align['left']);
 135 define('SQM_ALIGN_RIGHT', $align['right']);
 136
 137 // END TODO
 138
 139 if (sqgetGlobalVar('fontset',$fontset,SQ_GET) &&
 140     isset($fontsets[$fontset])) {
 141     $fontfamily=$fontsets[$fontset];
 142 } else {
 143     $fontfamily='';
 144 }
 145
 146 if (! sqgetGlobalVar('fontsize',$fontsize,SQ_GET)) {
 147     $fontsize = 0;
 148 } else {
 149     $fontsize = (int) $fontsize;
 150 }
 151
 152 $oTemplate->header('Content-Type: text/css');
 153 /**
 154  * GOTCHA #1: When sending the headers for caching, we must send Expires,
 155  *            Last-Modified, Pragma, and Cache-Control headers.  If we don't PHP
 156  *            will makeup values that will break the cacheing.
 157  *
 158  * GOTCHA #2: If the current template does not contain a template named
 159  *            stylesheet.tpl, this cacheing will break because filemtime() won't
 160  *            work.  This is a problem e.g. with the default_advanced template
 161  *            that inherits CSS properties from the default template but
 162  *            doesn't contain stylesheet.tpl itself.
 163 IDEA: So ask the Template class object to return the mtime or better yet, the full file path (at least from SM_PATH) by using $oTemplate->get_template_file_path(stylesheet.tpl) but this is still a problem if the default template also does not have such a file (in which case, we fall back to SM's css/deafult css file (so in that case, go get that file's mtime!)
 164  *            Possibly naive suggestion - template can define its own default
 165  *            template name
 166  *
 167  * GOTCHA #3: If the user changes user prefs for things like font size then
 168  *            the mtime should be updated to the time of that change, and not
 169  *            that of the stylesheet.tpl file.  IDEA: can this be a value kept
 170  *            in user prefs (always compare to actual file mtime before sending
 171  *            to the browser)
 172  *
 173  * Comment re gotcha #3: If we only define basic font prefs here, we really
 174  * only need to refresh the cache if one of the font prefs changes.
 175  * Possibly some type of "force nocache flag could be set if a font pref is
 176  * changed?
 177  *
 178  * Response: Perhaps, if that can be implemented great, but I think the
 179  * user prefs solution would definitely work: catch the font setting change
 180  * in a custom save() routine from user prefs and away we go.
 181  *
 182  * TODO: Fix this. :)
 183  */
 184
 185 if ( $lastmod = @filemtime(SM_PATH . $oTemplate->get_template_file_directory()
 186                          . 'css/stylesheet.tpl') ) {
 187     $gmlastmod = gmdate('D, d M Y H:i:s', $lastmod) . ' GMT';
 188     $expires = gmdate('D, d M Y H:i:s', strtotime('+1 week')) . ' GMT';
 189     header('Last-Modified: ' . $gmlastmod);
 190     header('Expires: '. $expires);
 191     header('Pragma: ');
 192     header('Cache-Control: public, must-revalidate');
 193 }
 194 // Steve, why did you remove this?  Is it irrelevant now?  If so, let's
 195 // remove the rest of the references to it here (note that it is being
 196 // used above in the filetime() statement) and elsewhere
 197 // $oTemplate->display('css/stylesheet.tpl');
 198
 199 /**
 200  * Additional styles are now handled by adding stylesheets to
 201  * templates/<template>/css/, so here, we simply define some
 202  * basic styles based on user prefs.
 203  */
 204 ?>
 205 /* older css template */
 206 body, td, th, dd, dt, h1, h2, h3, h4, h5, h6, p, ol, ul, li {
 207 <?php
 208 if($fontfamily) echo '  font-family: '.$fontfamily.";\n";
 209 ?>
 210 }
 211 body, small {
 212 <?php
 213 if($fontsize) echo '  font-size: '.($fontsize-2)."pt;\n";
 214 ?>
 215 }
 216 td, th {
 217 <?php
 218 if($fontsize) echo '  font-size: '.$fontsize."pt;\n";
 219 ?>
 220 }
 221 textarea, pre {
 222 font-family: monospace;
 223 <?php
 224 if($fontsize) echo '  font-size: '.($fontsize-1)."pt;\n";
 225 ?>
 226 }
 227