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; 2005-2006 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 /**
  24  * Set the location in order to skip unneeded validation and other includes
  25  * in the SquirrelMail initialisation file.
  26  */
  27 $sInitLocation = 'style';
  28
  29 /**
  30  * Include the SquirrelMail initialization file.
  31  */
  32 require('../include/init.php');
  33
  34 /* safety check for older config.php */
  35 if (!isset($fontsets) || !is_array($fontsets)) {
  36     $fontsets=array();
  37 }
  38
  39
  40 /**
  41  * The following code should no longer be neccesary, but it will remain for the
  42  * time being, just in case.
  43  *
  44  * TODO: Remove if no longer needed.
  45  **/
  46 /* set default colors in case color theme is not full */
  47 $color = array();
  48 $color[0]   = '#dcdcdc'; // (light gray)     TitleBar
  49 $color[1]   = '#800000'; // (red)
  50 $color[2]   = '#cc0000'; // (light red)      Warning/Error Messages
  51 $color[3]   = '#a0b8c8'; // (green-blue)     Left Bar Background
  52 $color[4]   = '#ffffff'; // (white)          Normal Background
  53 $color[5]   = '#ffffcc'; // (light yellow)   Table Headers
  54 $color[6]   = '#000000'; // (black)          Text on left bar
  55 $color[7]   = '#0000cc'; // (blue)           Links
  56 $color[8]   = '#000000'; // (black)          Normal text
  57 $color[9]   = '#ababab'; // (mid-gray)       Darker version of #0
  58 $color[10]  = '#666666'; // (dark gray)      Darker version of #9
  59 $color[11]  = '#770000'; // (dark red)       Special Folders color
  60 $color[12]  = '#ededed'; // (light gray)     Alternate color for message list
  61 $color[13]  = '#800000'; // (dark red)       Color for quoted text -- > 1 quote
  62 $color[14]  = '#ff0000'; // (red)            Color for quoted text -- >> 2 or more
  63 $color[15]  = '#002266'; // (dark blue)      Unselectable folders
  64 $color[16]  = '#ff9933'; // (orange)         Highlight color
  65
  66 /**
  67  * set color constants in order to use simple names instead of color array
  68  * 0 - SQM_TEXT_DISABLED, SQM_TITLE_BACKGROUND, SQM_BUTTON_BACKGROUND_DISABLED,
  69  *     SQM_ROW_BACKGROUND_1
  70  * 1 -
  71  * 2 - SQM_ERROR_TEXT
  72  * 3 - SQM_BACKGROUND_LEFT
  73  * 4 - SQM_BACKGROUND
  74  * 5 - SQM_ROW_BACKGROUND_HIGHLIGHT, SQM_COLUMN_HEADER_BACKGROUND
  75  * 6 - SQM_TEXT_STANDARD_LEFT
  76  * 7 - SQM_TITLE_TEXT, SQM_BLOCK_TITLE_TEXT
  77  * 8 - SQM_TEXT_STANDARD, SQM_BUTTON_TEXT, SQM_BLOCK_TEXT, SQM_ROW_TEXT_1,
  78  *     SQM_ROW_TEXT_2, SQM_ROW_TEXT_HIGHLIGHT, SQM_ROW_TEXT_SELECTED,
  79  *     SQM_COLUMN_HEADER_TEXT
  80  * 9 - SQM_BUTTON_BACKGROUND
  81  * 10 - SQM_BLOCK_TITLE
  82  * 11 - SQM_TEXT_SPECIAL
  83  * 12 - SQM_BUTTON_BACKGROUND_TEXT, SQM_BLOCK_BACKGROUND, SQM_ROW_BACKGROUND_2
  84  * 13 - SQM_MESSAGE_QUOTE_1
  85  * 14 - SQM_MESSAGE_QUOTE_2
  86  * 15 - SQM_TEXT_HIGHLIGHT
  87  * 16 - SQM_ROW_BACKGROUND_SELECTED
  88  */
  89 define('SQM_BACKGROUND',$color[4]);
  90 define('SQM_BACKGROUND_LEFT',$color[3]);
  91
  92 define('SQM_TEXT_STANDARD',$color[8]);
  93 define('SQM_TEXT_STANDARD_LEFT',$color[6]);
  94 define('SQM_TEXT_HIGHLIGHT',$color[15]);
  95 define('SQM_TEXT_DISABLED',$color[0]);
  96 define('SQM_TEXT_SPECIAL',$color[11]);
  97
  98 define('SQM_LINK',$color[7]);
  99 define('SQM_LINK_LEFT',$color[6]);
 100
 101 define('SQM_TITLE_BACKGROUND',$color[0]);
 102 define('SQM_TITLE_TEXT',$color[7]);
 103
 104 define('SQM_BUTTON_BACKGROUND',$color[9]);
 105 define('SQM_BUTTON_TEXT',$color[8]);
 106 define('SQM_BUTTON_BACKGROUND_DISABLED',$color[0]);
 107 define('SQM_BUTTON_BACKGROUND_TEXT',$color[12]);
 108
 109 define('SQM_BLOCK_BACKGROUND',$color[12]);
 110 define('SQM_BLOCK_TEXT',$color[8]);
 111 define('SQM_BLOCK_TITLE',$color[10]);
 112 define('SQM_BLOCK_TITLE_TEXT',$color[7]);
 113
 114 define('SQM_ROW_BACKGROUND_1',$color[0]);
 115 define('SQM_ROW_BACKGROUND_2',$color[12]);
 116 define('SQM_ROW_TEXT_1',$color[8]);
 117 define('SQM_ROW_TEXT_2',$color[8]);
 118 define('SQM_ROW_BACKGROUND_HIGHLIGHT',$color[5]);
 119 define('SQM_ROW_TEXT_HIGHLIGHT',$color[8]);
 120 define('SQM_ROW_BACKGROUND_SELECTED',$color[16]);
 121 define('SQM_ROW_TEXT_SELECTED',$color[8]);
 122
 123 define('SQM_COLUMN_HEADER_BACKGROUND',$color[5]);
 124 define('SQM_COLUMN_HEADER_TEXT',$color[8]);
 125
 126 define('SQM_MESSAGE_QUOTE_1',$color[13]);
 127 define('SQM_MESSAGE_QUOTE_2',$color[14]);
 128
 129 define('SQM_ERROR_TEXT',$color[2]);
 130
 131 define('SQM_ALIGN_LEFT', $align['left']);
 132 define('SQM_ALIGN_RIGHT', $align['right']);
 133
 134 // END TODO
 135
 136 if (sqgetGlobalVar('fontset',$fontset,SQ_GET) &&
 137     isset($fontsets[$fontset])) {
 138     $fontfamily=$fontsets[$fontset];
 139 } else {
 140     $fontfamily='';
 141 }
 142
 143 if (! sqgetGlobalVar('fontsize',$fontsize,SQ_GET)) {
 144     $fontsize = 0;
 145 } else {
 146     $fontsize = (int) $fontsize;
 147 }
 148
 149 $oTemplate->header('Content-Type: text/css');
 150 /**
 151  * GOTCHA #1: When sending the headers for caching, we must send Expires,
 152  *            Last-Modified, Pragma, and Cache-Control headers.  If we don't PHP
 153  *            will makeup values that will break the cacheing.
 154  *
 155  * GOTCHA #2: If the current template does not contain a template named
 156  *            stylesheet.tpl, this cacheing will break because filemtime() won't
 157  *            work.  This is a problem e.g. with the default_advanced template
 158  *            that inherits CSS properties from the default template but
 159  *            doesn't contain stylesheet.tpl itself.
 160 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!)
 161  *            Possibly naive suggestion - template can define its own default
 162  *            template name
 163  *
 164  * GOTCHA #3: If the user changes user prefs for things like font size then
 165  *            the mtime should be updated to the time of that change, and not
 166  *            that of the stylesheet.tpl file.  IDEA: can this be a value kept
 167  *            in user prefs (always compare to actual file mtime before sending
 168  *            to the browser)
 169  *
 170  * Comment re gotcha #3: If we only define basic font prefs here, we really
 171  * only need to refresh the cache if one of the font prefs changes.
 172  * Possibly some type of "force nocache flag could be set if a font pref is
 173  * changed?
 174  *
 175  * Response: Perhaps, if that can be implemented great, but I think the
 176  * user prefs solution would definitely work: catch the font setting change
 177  * in a custom save() routine from user prefs and away we go.
 178  *
 179  * TODO: Fix this. :)
 180  */
 181
 182 if ( $lastmod = @filemtime(SM_PATH . $oTemplate->get_template_file_directory()
 183                          . 'css/stylesheet.tpl') ) {
 184     $gmlastmod = gmdate('D, d M Y H:i:s', $lastmod) . ' GMT';
 185     $expires = gmdate('D, d M Y H:i:s', strtotime('+1 week')) . ' GMT';
 186     header('Last-Modified: ' . $gmlastmod);
 187     header('Expires: '. $expires);
 188     header('Pragma: ');
 189     header('Cache-Control: public, must-revalidate');
 190 }
 191 // Steve, why did you remove this?  Is it irrelevant now?  If so, let's
 192 // remove the rest of the references to it here (note that it is being
 193 // used above in the filetime() statement) and elsewhere
 194 // $oTemplate->display('css/stylesheet.tpl');
 195
 196 /**
 197  * Additional styles are now handled by adding stylesheets to
 198  * templates/<template>/css/, so here, we simply define some
 199  * basic styles based on user prefs.
 200  */
 201 ?>
 202 /* older css template */
 203 body, td, th, dd, dt, h1, h2, h3, h4, h5, h6, p, ol, ul, li {
 204 <?php
 205 if($fontfamily) echo '  font-family: '.$fontfamily.";\n";
 206 ?>
 207 }
 208 body, small {
 209 <?php
 210 if($fontsize) echo '  font-size: '.($fontsize-2)."pt;\n";
 211 ?>
 212 }
 213 td, th {
 214 <?php
 215 if($fontsize) echo '  font-size: '.$fontsize."pt;\n";
 216 ?>
 217 }
 218 textarea, pre {
 219 font-family: monospace;
 220 <?php
 221 if($fontsize) echo '  font-size: '.($fontsize-1)."pt;\n";
 222 ?>
 223 }
 224