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

3 files changed, 72 insertions, 45 deletions

diff --git a/lib/styles/all.css b/lib/styles/all.css
new file mode 100644
index 000000000..dd9f46462
--- /dev/null
+++ b/lib/styles/all.css
@@ -0,0 +1,48 @@
+/**
+ * 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;
+}
diff --git a/lib/styles/print.css b/lib/styles/print.css
new file mode 100644
index 000000000..16543473a
--- /dev/null
+++ b/lib/styles/print.css
@@ -0,0 +1,24 @@
+/**
+ * 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;
+}
diff --git a/lib/styles/style.css b/lib/styles/screen.css
index 395f82b78..0a6a4f295 100644
--- a/lib/styles/style.css
+++ b/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,