ThemeRegistry (zk 10.0.0 API)

All Known Implementing Classes:

DesktopThemeRegistry, ResponsiveThemeRegistry
```
public interface ThemeRegistry
```
Used to store a list of themes available to the web application. Themes should be registered before they could be used. User could define their own theme registry by implementing ThemeRegistry interface, and specifying the following configuration in metainfo/zk/zk.xml or WEB-INF/zk.xml.
```
 <desktop-config>
   <theme-registry-class>foo.CustomThemeRegistry</theme-registry>
 </desktop-config>
 
```
Since:

6.5.2

Author:

neillee

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`deregister(Theme theme)`	Remove a theme from web application's use
`Theme`	`getTheme(java.lang.String themeName)`	Returns the theme identified by themeName
`Theme[]`	`getThemes()`
`boolean`	`hasTheme(java.lang.String themeName)`	Determine if a theme is registered
`boolean`	`register(Theme theme)`	Register a theme, i.e. making the theme known to the web application Note: how to deal with duplicate registration is entirely up to the specific implementation of ThemeRegistry.

- Method Detail
  - register
```
boolean register(Theme theme)
```
    Register a theme, i.e. making the theme known to the web application Note: how to deal with duplicate registration is entirely up to the specific implementation of ThemeRegistry.
    
    Parameters:
    
    theme - theme-specific information
    
    Returns:
    
    true if the theme is registered; false if it cannot be registered
  - deregister
```
boolean deregister(Theme theme)
```
    Remove a theme from web application's use
    
    Parameters:
    
    theme - the theme to be removed from the registry
    
    Returns:
    
    true if the theme is removed; false if the theme cannot be found
    
    Since:
    
    6.5.2
  - getThemes
```
Theme[] getThemes()
```
    Returns:
    
    a list of currently registered themes
  - getTheme
```
Theme getTheme(java.lang.String themeName)
```
    Returns the theme identified by themeName
    
    Parameters:
    
    themeName - the name of the theme
    
    Returns:
    
    the theme identified by themeName; null if the theme is not registered
  - hasTheme
```
boolean hasTheme(java.lang.String themeName)
```
    Determine if a theme is registered
    
    Parameters:
    
    themeName - the name of the theme
    
    Returns:
    
    true if a theme with themeName is registered; false if not