Latest revision as of 13:28, 19 January 2022

This article is out of date, please refer to https://www.zkoss.org/wiki/ZK_Developer%27s_Reference/Theming_and_Styling for more up to date information.

Overview

ZUSS (ZK User-interface Style Sheet) is an extension to CSS. It is compatible with CSS, while allows to use variables, mixins, nested rules, expressions, and Java methods with existing CSS syntax.

Variables

/* ZUSS */
@nice-blue: #5B83AD;
@light-blue: @nice-blue + #111;
@dark-orange: orange - #010203;

div.hilite { color: @light-blue;}
div.hilite2 { color: @dark-orange;}

/* CSS */
div.hilite { color:  #6c94be;}
div.hilite2 { color: #fea300;}

Mixins

/* ZUSS */
@border_radious(@radius: 4px) {
  border-radius: @radius;
}

div.rounded {
  @border_radious();
}
button.rounded {
  @border_radious(3px);
}

/* CSS */
div.rounded {
  border-radius: 4px;
}
button.rounded {
  border-radius: 3px;
}

Nested Rules

/* ZUSS */
.bordered {
  &.float {
    float: left; 
  }
  .top {
    margin: 5px; 
  }
}

/* CSS */
.bordered.float {
  float: left;  
}
.bordered .top {
  margin: 5px;
}

Functions

/* ZUSS */
@nice_grey: #5B5B5B;
@darken(@color, @diff: 10%): @color * (1 - @diff);

div {
  color: @darken(@nice_grey);
}

/* CSS */
div {
  color: #525252;
}

Conditional Content

Include

/* ZUSS */
.box_shadow (@x: 0, @y: 0, @blur: 1px, @color: #000) {
  box-shadow: @arguments;
  @if (@gecko < 5) {
    -moz-box-shadow: @arguments;
  } @elif (@webkit) {
    -webkit-box-shadow: @arguments;
  }
}

/* ZUSS */
@include another.zuss;

Download

Download the binary distribution from here
Get zuss.jar under the dist/lib directory of the binary distribution^[1]

↑ If you'd like to debug with the source code of ZUSS with IDE, you could get zuss-sources.jar under the dist/src directory.

Servlet Usage

Copy zuss.jar to the WEB-INF/lib directory
Add the following content to WEB-INF/web.xml

	<servlet>
		<servlet-name>ZUSS</servlet-name>
		<servlet-class>org.zkoss.zuss.ZussServlet</servlet-class>
	</servlet>
	<servlet-mapping>
		<servlet-name>ZUSS</servlet-name>
		<url-pattern>*.zuss</url-pattern>
	</servlet-mapping>

For the configuration of the ZUSS servlet, please refer to the ZussServlet (JavaDoc could be downloaded from here).

Command-line Usage

You could invoke the ZUSS compiler from the command-line.

java -jar zuss.jar foo.zuss

For a synopsis of standard options:

java -jar zuss.jar foo.zuss -h

Java Usage

The utilities to compile ZUSS can be found in Zuss. The parse methods are used to parse a variable input source into an immediate format. The translate methods are used to translate the immediate format to CSS.

If your ZUSS file is dynamical, you could store the immediate format and then translate to CSS with an optional variables and function resolver (called Resolver).

Bug Reports and Feature Requests

Please post and follow the issues at GitHub.

Version History

Last Update : 2022/01/19

Version	Date	Content

Last Update : 2022/01/19

[1] If you'd like to debug with the source code of ZUSS with IDE, you could get zuss-sources.jar under the dist/src directory.

[1]

@@ Line 1: / Line 1: @@
 {{ZUSSReferencePageHeader}}
+{{Deprecated|url=https://www.zkoss.org/wiki/ZK_Developer%27s_Reference/Theming_and_Styling}}
 =Overview=
@@ Line 135: / Line 137: @@
 * Download the binary distribution from [http://code.google.com/p/zuss/downloads/list here]
-* Get <tt>zuss.jar</tt> under the <tt>dist/lib</tt> directory of the binary distribution<ref>If you'd like to debug with the source code of ZUSS with IDE, you could get <tt>zuss-sources.jar</tt> under the <tt>dist/src</tt> directory.</ref>
+* Get <code>zuss.jar</code> under the <code>dist/lib</code> directory of the binary distribution<ref>If you'd like to debug with the source code of ZUSS with IDE, you could get <code>zuss-sources.jar</code> under the <code>dist/src</code> directory.</ref>
-{{references}}
+<blockquote>
+----
+<references/>
+</blockquote>
 =Servlet Usage=
-* Copy <tt>zuss.jar</tt> to the <tt>WEB-INF/lib</tt> directory
+* Copy <code>zuss.jar</code> to the <code>WEB-INF/lib</code> directory
-* Add the following content to <tt>WEB-INF/web.xml</tt>
+* Add the following content to <code>WEB-INF/web.xml</code>
 <source lang="xml">
@@ Line 173: / Line 178: @@
 =Java Usage=
-The utilities to compile ZUSS can be found in the <tt>org.zkoss.zuss.Zuss</tt> class. The <tt>parse</tt> methods are used to parse a variable input source into an immediate format. The <tt>translate</tt> methods are  used to translate the immediate format to CSS.
+The utilities to compile ZUSS can be found in <javadoc directory="zuss">org.zkoss.zuss.Zuss</javadoc>. The <code>parse</code> methods are used to parse a variable input source into an immediate format. The <code>translate</code> methods are  used to translate the immediate format to CSS.
-If your ZUSS file is dynamical, you could store the immediate format and then translate to CSS with an optional variables and function resolver (called <tt>org.zkoss.zuss.Resolver</tt>).
+If your ZUSS file is dynamical, you could store the immediate format and then translate to CSS with an optional variables and function resolver (called <javadoc directory="zuss">org.zkoss.zuss.Resolver</javadoc>).
 = Bug Reports and Feature Requests=

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