CSSHelper (Javadocs [I2P+ 2.13.0+] - API Version 0.9.70+)

java.lang.Object
- net.i2p.router.web.HelperBase
- - net.i2p.router.web.CSSHelper

```
public class CSSHelper
extends HelperBase
```
Copied and modded from I2PTunnel IndexBean (GPL)

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`static class`	`CSSHelper.StringFormatter` Capitalize first letter of each word of string https://www.javatpoint.com/java-program-to-capitalize-each-word-in-string

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`BASE_THEME_PATH` BASE_THEME_PATH.
`static boolean`	`DEFAULT_ENABLE_SORA_FONT` DEFAULT_ENABLE_SORA_FONT.
`static String`	`DEFAULT_REFRESH` DEFAULT_REFRESH.
`static boolean`	`DEFAULT_SIDEBAR_GRAPH_LEGACY`
`static boolean`	`DEFAULT_STICKY_SIDEBAR` DEFAULT_STICKY_SIDEBAR.
`static String`	`DEFAULT_THEME` DEFAULT_THEME.
`static boolean`	`DEFAULT_UNIFIED_SIDEBAR` DEFAULT_UNIFIED_SIDEBAR.
`static int`	`MIN_REFRESH` MIN_REFRESH.
`static String`	`PROP_DISABLE_REFRESH` PROP_DISABLE_REFRESH.
`static String`	`PROP_EMBED_APPS`
`static String`	`PROP_ENABLE_SORA_FONT`
`static String`	`PROP_FORCE_MOBILE_CONSOLE` PROP_FORCE_MOBILE_CONSOLE.
`static String`	`PROP_REFRESH` PROP_REFRESH.
`static String`	`PROP_SIDEBAR_GRAPH_CONTINUOUS`
`static String`	`PROP_SIDEBAR_GRAPH_DIRECTION`
`static String`	`PROP_SIDEBAR_GRAPH_LEGACY`
`static String`	`PROP_SIDEBAR_GRAPH_MINUTES`
`static String`	`PROP_SIDEBAR_GRAPH_SPLIT`
`static String`	`PROP_STICKY_SIDEBAR`
`static String`	`PROP_THEME_NAME` PROP_THEME_NAME.
`static String`	`PROP_THEME_PFX`
`static String`	`PROP_UNIFIED_SIDEBAR`
`static String`	`PROP_UNIVERSAL_THEMING` PROP_UNIVERSAL_THEMING.

Fields inherited from class net.i2p.router.web.HelperBase
_context, _out, CHECKED, PROP_ADVANCED, SELECTED

Constructor Summary
Constructors
Constructor and Description
CSSHelper()

Constructors
Constructor and Description
`CSSHelper()`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`allowIFrame(String ua)` Should we allow a refreshing IFrame?
`boolean`	`embedApps()` Returns whether app embedding is enabled or disabled
`boolean`	`enableStickySidebar()` Returns whether we should use a unified sidebar
`boolean`	`enableUnifiedSidebar()` Returns whether we should use a unified sidebar
`boolean`	`getDisableRefresh()`
`String`	`getLang()` needed for conditional css loads for zh
`static String`	`getNonce()` Get current CSRF nonce, rotating every 5 minutes.
`static String`	`getNonce(HttpSession session)` Session-bound nonce generation - replaces static consoleNonce, updateNonce, reseedNonce, systemNonce
`static String`	`getRecentNonce(int index)` Get recent nonce for backward compatibility.
`String`	`getRefresh()`
`String`	`getSidebarGraphDirection()` Returns the sidebar graph render direction ("ltr" or "rtl").
`int`	`getSidebarGraphMinutes()` Returns the sidebar graph time period in minutes (2–30).
`String`	`getTheme(String userAgent)`
`boolean`	`isAdvancedMode()`
`void`	`setDisableRefresh(String r)` change disable refresh boolean and save it
`void`	`setLang(String lang)` change default language for the router AND save it
`void`	`setNews(String val)` Show / hide news on home page
`void`	`setRefresh(String r)` change refresh and save it
`void`	`setSoraDisplayFont()` Save config for alternative display font if enabled
`boolean`	`shouldSendXFrame()` Should we send X_Frame_Options=SAMEORIGIN Default true
`String`	`title(String s)` translate the title and display consistently
`boolean`	`useLegacySidebarGraph()` Returns whether to use the legacy RRD4J minigraph renderer.
`boolean`	`useSidebarGraphContinuous()` Returns whether the sidebar graph uses continuous scroll mode.
`boolean`	`useSidebarGraphSplit()` Returns whether the sidebar graph uses split mode (inbound top, outbound bottom).
`boolean`	`useSoraDisplayFont()` Returns whether we should use Sora display font
`boolean`	`useStickySidebar()` Returns whether we should use a sticky sidebar when the sidebar height is less than the height of the viewport
`boolean`	`useUnifiedSidebar()` Returns whether we should use a unified sidebar
`static boolean`	`validateNonce(HttpSession session, String nonce)` Session-bound nonce validation - replaces static nonce validation
`static boolean`	`validateNonce(HttpSession session, String nonce, boolean preserve)` Session-bound nonce validation with preserve option

Methods inherited from class net.i2p.router.web.HelperBase
_t, _t, _t, _x, getChecked, isAdvanced, ngettext, setContextId, storeWriter

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - BASE_THEME_PATH
```
public static final String BASE_THEME_PATH
```
    BASE_THEME_PATH.
    See Also:
    Constant Field Values
  - DEFAULT_ENABLE_SORA_FONT
```
public static final boolean DEFAULT_ENABLE_SORA_FONT
```
    DEFAULT_ENABLE_SORA_FONT.
    See Also:
    Constant Field Values
  - DEFAULT_REFRESH
```
public static final String DEFAULT_REFRESH
```
    DEFAULT_REFRESH.
    See Also:
    Constant Field Values
  - DEFAULT_SIDEBAR_GRAPH_LEGACY
```
public static final boolean DEFAULT_SIDEBAR_GRAPH_LEGACY
```
    See Also:
    Constant Field Values
  - DEFAULT_STICKY_SIDEBAR
```
public static final boolean DEFAULT_STICKY_SIDEBAR
```
    DEFAULT_STICKY_SIDEBAR.
    See Also:
    Constant Field Values
  - DEFAULT_THEME
```
public static final String DEFAULT_THEME
```
    DEFAULT_THEME.
    See Also:
    Constant Field Values
  - DEFAULT_UNIFIED_SIDEBAR
```
public static final boolean DEFAULT_UNIFIED_SIDEBAR
```
    DEFAULT_UNIFIED_SIDEBAR.
    See Also:
    Constant Field Values
  - MIN_REFRESH
```
public static final int MIN_REFRESH
```
    MIN_REFRESH.
    See Also:
    Constant Field Values
  - PROP_DISABLE_REFRESH
```
public static final String PROP_DISABLE_REFRESH
```
    PROP_DISABLE_REFRESH.
    See Also:
    Constant Field Values
  - PROP_EMBED_APPS
```
public static final String PROP_EMBED_APPS
```
    See Also:
    Constant Field Values
  - PROP_ENABLE_SORA_FONT
```
public static final String PROP_ENABLE_SORA_FONT
```
    See Also:
    Constant Field Values
  - PROP_FORCE_MOBILE_CONSOLE
```
public static final String PROP_FORCE_MOBILE_CONSOLE
```
    PROP_FORCE_MOBILE_CONSOLE.
    See Also:
    Constant Field Values
  - PROP_REFRESH
```
public static final String PROP_REFRESH
```
    PROP_REFRESH.
    See Also:
    Constant Field Values
  - PROP_SIDEBAR_GRAPH_CONTINUOUS
```
public static final String PROP_SIDEBAR_GRAPH_CONTINUOUS
```
    See Also:
    Constant Field Values
  - PROP_SIDEBAR_GRAPH_DIRECTION
```
public static final String PROP_SIDEBAR_GRAPH_DIRECTION
```
    See Also:
    Constant Field Values
  - PROP_SIDEBAR_GRAPH_LEGACY
```
public static final String PROP_SIDEBAR_GRAPH_LEGACY
```
    See Also:
    Constant Field Values
  - PROP_SIDEBAR_GRAPH_MINUTES
```
public static final String PROP_SIDEBAR_GRAPH_MINUTES
```
    See Also:
    Constant Field Values
  - PROP_SIDEBAR_GRAPH_SPLIT
```
public static final String PROP_SIDEBAR_GRAPH_SPLIT
```
    See Also:
    Constant Field Values
  - PROP_STICKY_SIDEBAR
```
public static final String PROP_STICKY_SIDEBAR
```
    See Also:
    Constant Field Values
  - PROP_THEME_NAME
```
public static final String PROP_THEME_NAME
```
    PROP_THEME_NAME.
    See Also:
    Constant Field Values
  - PROP_THEME_PFX
```
public static final String PROP_THEME_PFX
```
    See Also:
    Constant Field Values
  - PROP_UNIFIED_SIDEBAR
```
public static final String PROP_UNIFIED_SIDEBAR
```
    See Also:
    Constant Field Values
  - PROP_UNIVERSAL_THEMING
```
public static final String PROP_UNIVERSAL_THEMING
```
    PROP_UNIVERSAL_THEMING.
    See Also:
    Constant Field Values
- Constructor Detail
  - CSSHelper
```
public CSSHelper()
```
- Method Detail
  - allowIFrame
```
public boolean allowIFrame(String ua)
```
    Should we allow a refreshing IFrame?
  - embedApps
```
public boolean embedApps()
```
    Returns whether app embedding is enabled or disabled
  - enableStickySidebar
```
public boolean enableStickySidebar()
```
    Returns whether we should use a unified sidebar
  - enableUnifiedSidebar
```
public boolean enableUnifiedSidebar()
```
    Returns whether we should use a unified sidebar
  - getDisableRefresh
```
public boolean getDisableRefresh()
```
    Returns:
    true if refresh is disabled
  - getLang
```
public String getLang()
```
    needed for conditional css loads for zh
    Returns:
    two-letter only, lower-case
  - getNonce
```
public static String getNonce()
```
    Get current CSRF nonce, rotating every 5 minutes. Keeps 2 previous nonces for backward compatibility (multi-tab, slow clients).
    Returns:
    the nonce
  - getNonce
```
public static String getNonce(HttpSession session)
```
    Session-bound nonce generation - replaces static consoleNonce, updateNonce, reseedNonce, systemNonce
    Parameters:
    session - returns an invalid nonce if null
    Returns:
    a new nonce for each call
  - getRecentNonce
```
public static String getRecentNonce(int index)
```
    Get recent nonce for backward compatibility.
    Parameters:
    index - 0 for most recent, 1 for second most recent
    Returns:
    nonce or null if not available
  - getRefresh
```
public String getRefresh()
```
    Returns:
    refresh time in seconds, as a string
  - getSidebarGraphDirection
```
public String getSidebarGraphDirection()
```
    Returns the sidebar graph render direction ("ltr" or "rtl").
    Returns:
    the sidebar graph direction
  - getSidebarGraphMinutes
```
public int getSidebarGraphMinutes()
```
    Returns the sidebar graph time period in minutes (2–30).
    Returns:
    the sidebar graph minutes
  - getTheme
```
public String getTheme(String userAgent)
```
    Returns:
    the theme
  - isAdvancedMode
```
public boolean isAdvancedMode()
```
    Returns:
    whether advanced mode
  - setDisableRefresh
```
public void setDisableRefresh(String r)
```
    change disable refresh boolean and save it
  - setLang
```
public void setLang(String lang)
```
    change default language for the router AND save it
    Parameters:
    lang - xx OR xx_XX OR xxx OR xxx_XX
  - setNews
```
public void setNews(String val)
```
    Show / hide news on home page
    Parameters:
    val - if non-null, "1" to show, else hide
  - setRefresh
```
public void setRefresh(String r)
```
    change refresh and save it
  - setSoraDisplayFont
```
public void setSoraDisplayFont()
```
    Save config for alternative display font if enabled
  - shouldSendXFrame
```
public boolean shouldSendXFrame()
```
    Should we send X_Frame_Options=SAMEORIGIN Default true
    Returns:
    whether send x frame
  - title
```
public String title(String s)
```
    translate the title and display consistently
  - useLegacySidebarGraph
```
public boolean useLegacySidebarGraph()
```
    Returns whether to use the legacy RRD4J minigraph renderer. When false, the new dual-baseline canvas renderer is used with inbound spiking upward (top half) and outbound downward (bottom half).
  - useSidebarGraphContinuous
```
public boolean useSidebarGraphContinuous()
```
    Returns whether the sidebar graph uses continuous scroll mode. When enabled, the graph scrolls left as new data arrives.
  - useSidebarGraphSplit
```
public boolean useSidebarGraphSplit()
```
    Returns whether the sidebar graph uses split mode (inbound top, outbound bottom). When false, overlay mode is used (both lines from top).
  - useSoraDisplayFont
```
public boolean useSoraDisplayFont()
```
    Returns whether we should use Sora display font
  - useStickySidebar
```
public boolean useStickySidebar()
```
    Returns whether we should use a sticky sidebar when the sidebar height is less than the height of the viewport
  - useUnifiedSidebar
```
public boolean useUnifiedSidebar()
```
    Returns whether we should use a unified sidebar
  - validateNonce
```
public static boolean validateNonce(HttpSession session,
                                    String nonce)
```
    Session-bound nonce validation - replaces static nonce validation
    Parameters:
    nonce - returns false if null
    session - returns false if null
    Returns:
    true if valid
  - validateNonce
```
public static boolean validateNonce(HttpSession session,
                                    String nonce,
                                    boolean preserve)
```
    Session-bound nonce validation with preserve option
    Parameters:
    nonce - returns false if null
    session - returns false if null
    preserve - if true, do not delete the nonce. Use for early checks in jsps.
    Returns:
    true if valid

Class CSSHelper

Nested Class Summary

Field Summary

Fields inherited from class net.i2p.router.web.HelperBase

Constructor Summary

Method Summary

Methods inherited from class net.i2p.router.web.HelperBase

Methods inherited from class java.lang.Object

Field Detail

BASE_THEME_PATH

DEFAULT_ENABLE_SORA_FONT

DEFAULT_REFRESH

DEFAULT_SIDEBAR_GRAPH_LEGACY

DEFAULT_STICKY_SIDEBAR

DEFAULT_THEME

DEFAULT_UNIFIED_SIDEBAR

MIN_REFRESH

PROP_DISABLE_REFRESH

PROP_EMBED_APPS

PROP_ENABLE_SORA_FONT

PROP_FORCE_MOBILE_CONSOLE

PROP_REFRESH

PROP_SIDEBAR_GRAPH_CONTINUOUS

PROP_SIDEBAR_GRAPH_DIRECTION

PROP_SIDEBAR_GRAPH_LEGACY

PROP_SIDEBAR_GRAPH_MINUTES

PROP_SIDEBAR_GRAPH_SPLIT

PROP_STICKY_SIDEBAR

PROP_THEME_NAME

PROP_THEME_PFX

PROP_UNIFIED_SIDEBAR

PROP_UNIVERSAL_THEMING

Constructor Detail

CSSHelper

Method Detail

allowIFrame

embedApps

enableStickySidebar

enableUnifiedSidebar

getDisableRefresh

getLang

getNonce

getNonce

getRecentNonce

getRefresh

getSidebarGraphDirection

getSidebarGraphMinutes

getTheme

isAdvancedMode

setDisableRefresh

setLang

setNews

setRefresh

setSoraDisplayFont

shouldSendXFrame

title

useLegacySidebarGraph

useSidebarGraphContinuous

useSidebarGraphSplit

useSoraDisplayFont

useStickySidebar

useUnifiedSidebar

validateNonce

validateNonce