improved css.php and core styles

* code cleanup in lib/exe/css.php
* renamed 'default' userstyle to 'screen' in config_cascade
* splitted core lib/styles/style.css up into all.css, print.css and screen.css

inc/config_cascade.php

@@ -49,7 +49,7 @@ $config_cascade = array_merge(
             'local'     => array(DOKU_CONF.'wordblock.local.conf'),
             ),
         'userstyle' => array(
-            'default' => DOKU_CONF.'userstyle.css',
+            'screen'  => DOKU_CONF.'userstyle.css',
             'rtl'     => DOKU_CONF.'rtlstyle.css',
             'print'   => DOKU_CONF.'printstyle.css',
             'feed'    => DOKU_CONF.'feedstyle.css',

lib/exe/css.php

@@ -30,10 +30,10 @@ function css_out(){
     global $lang;
     global $config_cascade;
 
-    $style = '';
+    $mediatype = 'screen';
     if (isset($_REQUEST['s']) &&
         in_array($_REQUEST['s'], array('all', 'print', 'feed'))) {
-        $style = $_REQUEST['s'];
+        $mediatype = $_REQUEST['s'];
     }
 
     $tpl = trim(preg_replace('/[^\w-]+/','',$_REQUEST['t']));
@@ -46,7 +46,7 @@ function css_out(){
     }
 
     // The generated script depends on some dynamic options
-    $cache = getCacheName('styles'.$_SERVER['HTTP_HOST'].$_SERVER['SERVER_PORT'].DOKU_BASE.$tplinc.$style,'.css');
+    $cache = getCacheName('styles'.$_SERVER['HTTP_HOST'].$_SERVER['SERVER_PORT'].DOKU_BASE.$tplinc.$mediatype,'.css');
 
     // load template styles
     $tplstyles = array();
@@ -60,27 +60,29 @@ function css_out(){
     // Array of needed files and their web locations, the latter ones
     // are needed to fix relative paths in the stylesheets
     $files   = array();
-    //if (isset($tplstyles['all'])) $files = array_merge($files, $tplstyles['all']);
-    if(!empty($style)){
-        $files[DOKU_INC.'lib/styles/'.$style.'.css'] = DOKU_BASE.'lib/styles/';
-        // load plugin, template, user styles
-        $files = array_merge($files, css_pluginstyles($style));
-        if (isset($tplstyles[$style])) $files = array_merge($files, $tplstyles[$style]);
-
-        if(isset($config_cascade['userstyle'][$style])){
-            $files[$config_cascade['userstyle'][$style]] = DOKU_BASE;
-        }
-    }else{
-        $files[DOKU_INC.'lib/styles/style.css'] = DOKU_BASE.'lib/styles/';
-        // load plugin, template, user styles
-        $files = array_merge($files, css_pluginstyles('screen'));
-        if (isset($tplstyles['screen'])) $files = array_merge($files, $tplstyles['screen']);
+    // load core styles
+    $files[DOKU_INC.'lib/styles/'.$mediatype.'.css'] = DOKU_BASE.'lib/styles/';
+    // load plugin styles
+    $files = array_merge($files, css_pluginstyles($mediatype));
+    // load template styles
+    if (isset($tplstyles[$mediatype])) {
+        $files = array_merge($files, $tplstyles[$mediatype]);
+    }
+    // if old 'default' userstyle setting exists, make it 'screen' userstyle for backwards compatibility
+    if (isset($config_cascade['userstyle']['default'])) {
+        $config_cascade['userstyle']['screen'] = $config_cascade['userstyle']['default'];
+    }
+    // load user styles
+    if(isset($config_cascade['userstyle'][$mediatype])){
+        $files[$config_cascade['userstyle'][$mediatype]] = DOKU_BASE;
+    }
+    // load rtl styles
+    // @todo: this currently adds the rtl styles only to the 'screen' media type
+    //        but 'print' and 'all' should also be supported
+    if ($mediatype=='screen') {
         if($lang['direction'] == 'rtl'){
             if (isset($tplstyles['rtl'])) $files = array_merge($files, $tplstyles['rtl']);
         }
-        if(isset($config_cascade['userstyle']['default'])){
-            $files[$config_cascade['userstyle']['default']] = DOKU_BASE;
-        }
     }
 
     // check cache age & handle conditional request
@@ -122,7 +124,7 @@ function css_out(){
 
     // apply style replacements
     $css = css_applystyle($css,$tplinc);
-    
+
     // place all @import statements at the top of the file
     $css = css_moveimports($css);
 
@@ -278,20 +280,15 @@ function css_loadfile($file,$location=''){
  *
  * @author Andreas Gohr <andi@splitbrain.org>
  */
-function css_pluginstyles($mode='screen'){
+function css_pluginstyles($mediatype='screen'){
     global $lang;
     $list = array();
     $plugins = plugin_list();
     foreach ($plugins as $p){
-        if($mode == 'all'){
-            $list[DOKU_PLUGIN."$p/all.css"]  = DOKU_BASE."lib/plugins/$p/";
-        }elseif($mode == 'print'){
-            $list[DOKU_PLUGIN."$p/print.css"]  = DOKU_BASE."lib/plugins/$p/";
-        }elseif($mode == 'feed'){
-            $list[DOKU_PLUGIN."$p/feed.css"]  = DOKU_BASE."lib/plugins/$p/";
-        }else{
+        $list[DOKU_PLUGIN."$p/$mediatype.css"]  = DOKU_BASE."lib/plugins/$p/";
+        // alternative for screen.css
+        if ($mediatype=='screen') {
             $list[DOKU_PLUGIN."$p/style.css"]  = DOKU_BASE."lib/plugins/$p/";
-            $list[DOKU_PLUGIN."$p/screen.css"] = DOKU_BASE."lib/plugins/$p/";
         }
         if($lang['direction'] == 'rtl'){
             $list[DOKU_PLUGIN."$p/rtl.css"] = DOKU_BASE."lib/plugins/$p/";
@@ -302,7 +299,7 @@ function css_pluginstyles($mode='screen'){
 
 /**
  * Move all @import statements in a combined stylesheet to the top so they
- * aren't ignored by the browser. 
+ * aren't ignored by the browser.
  *
  * @author Gabriel Birke <birke@d-scribe.de>
  */

lib/styles/all.css

+/**
+ * Basic styles. These styles are needed for basic DokuWiki functions
+ * regardless of the used template. Templates can override them of course
+ */
+
+div.clearer {
+    clear: both;
+    line-height: 0;
+    height: 0;
+    overflow: hidden;
+}
+
+div.no {
+    display: inline;
+    margin: 0;
+    padding: 0;
+}
+
+.hidden {
+    display: none;
+}
+
+/* image alignment */
+.medialeft {
+    float: left;
+}
+.mediaright {
+    float: right;
+}
+.mediacenter {
+    display: block;
+    margin-left: auto;
+    margin-right: auto;
+}
+
+/* table cell alignment */
+.leftalign   { text-align: left;   }
+.centeralign { text-align: center; }
+.rightalign  { text-align: right;  }
+
+/* underline */
+em.u {
+    font-style: normal;
+    text-decoration: underline;
+}
+em em.u {
+    font-style: italic;
+}

lib/styles/print.css

+/**
+ * Basic styles. These styles are needed for basic DokuWiki functions
+ * regardless of the used template. Templates can override them of course
+ */
+
+/* messages with msg() */
+div.error,
+div.info,
+div.success,
+div.notify {
+    display: none;
+}
+
+/* section edit button */
+.secedit {
+    display: none;
+}
+
+/* modal windows */
+.JSpopup,
+#link__wiz,
+#media__popup {
+    display: none;
+}

lib/styles/style.css → lib/styles/screen.css

@@ -3,23 +3,6 @@
  * regardless of the used template. Templates can override them of course
  */
 
-div.clearer {
-    clear: both;
-    line-height: 0;
-    height: 0;
-    overflow: hidden;
-}
-
-div.no {
-    display: inline;
-    margin: 0;
-    padding: 0;
-}
-
-.hidden {
-    display: none;
-}
-
 /* messages with msg() */
 div.error,
 div.info,
@@ -59,34 +42,6 @@ div.notify {
     border-bottom-color: #ffa;
 }
 
-
-/* image alignment */
-.medialeft {
-    float: left;
-}
-.mediaright {
-    float: right;
-}
-.mediacenter {
-    display: block;
-    margin-left: auto;
-    margin-right: auto;
-}
-
-/* table cell alignment */
-.leftalign   { text-align: left;   }
-.centeralign { text-align: center; }
-.rightalign  { text-align: right;  }
-
-/* underline */
-em.u {
-    font-style: normal;
-    text-decoration: underline;
-}
-em em.u {
-    font-style: italic;
-}
-
 /* modal windows */
 .JSpopup,
 #link__wiz,