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## com.bea.netuix.laf
Class PortalLookAndFeel

    java.lang.Object
      com.bea.netuix.laf.PortalLookAndFeel

    public class PortalLookAndFeel

extends Object

`PortalLookAndFeel` is the primary interface for interacting with the Look and Feel framework. Instances of this class can be retrieved via calls to the `getInstance` method(s). Various operations are premitted through this and related interfaces, including: Skin and Skeleton resource lookup, dynamic dependency configuration, and Look and Feel reinitialization.

The `Skin` and `Skeleton` classes provide read-only interfaces to retrieve information related to the current Look and Feel configuration such as name and path information, the current chromosomes in effect, and methods to resolve Look and Feel resources such as images and CSS files.

Render and Script dependencies can also be added through mechanisms available on this class. Any such dependencies will be aggregated by the Look and Feel framework and rendered as appropriate on the Poral page. This is the dynamic equivalent of specifying such dependencies via skin or skeleton configuration files.

Also possible through the various `reinit()` methods provided by this class is the ability to dynamically change the current Look and Feel. This allows, for example, the current skin and/or skeleton to be changed on a per-request basis. NOTE: when using these methods any previously retrieved information related to Look and Feel will be invalid. It is the responsibility of the application developer to ensure that such information is updated as necessary.

Method Summary
`void` | `addDynamicScriptDependency(String eventHandler, String scriptFragment)` Adds a script fragment associated with the specified event handler.
`DynamicHtmlRenderDependencies` | `getDynamicHtmlRenderDependencies()` Returns an instance of the `DynamicHtmlRenderDependencies` class to be used for dynamically adding render dependencies.
`static PortalLookAndFeel` | `getInstance(javax.servlet.http.HttpServletRequest request)` Returns an instance of the `PortalLookAndFeel` class associated with the current Look and Feel.
`static PortalLookAndFeel` | `getInstance(javax.servlet.jsp.JspContext jspContext)` Returns an instance of the `PortalLookAndFeel` class associated with the current Look and Feel.
`Skeleton` | `getSkeleton()` Returns a read-only object related to the current Look and Feel's skeleton.
`Skin` | `getSkin()` Returns a read-only object related to the current Look and Feel's skin.
`void` | `reinit(String skinName)` Calling this method reinitializes the Look and Feel with the specified values.
`void` | `reinit(String skinName, String skinPath)` Calling this method reinitializes the Look and Feel with the specified values.
`void` | `reinit(String skinName, String skinPath, String skinChromosomeName)` Calling this method reinitializes the Look and Feel with the specified values.
`void` | `reinit(String skinName, String skinPath, String skeletonName, String skeletonPath)` Calling this method reinitializes the Look and Feel with the specified values.
`void` | `reinit(String skinName, String skinPath, String skinChromosomeName, String skeletonName, String skeletonPath, String skeletonChromosomeName)` Calling this method reinitializes the Look and Feel with the specified values.

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

Method Detail

### getSkeleton

    public Skeleton getSkeleton()

  Returns a read-only object related to the current Look and Feel's skeleton. NOTE: Calls to `reinit()` will cause all previously returned `Skeleton` objects to become invalid.

  Returns
    A `Skeleton` object.

### getSkin

    public Skin getSkin()

  Returns a read-only object related to the current Look and Feel's skin. NOTE: Calls to `reinit()` will cause all previously returned `Skin` objects to become invalid.

  Returns
    A `Skin` object.

### getDynamicHtmlRenderDependencies

    public DynamicHtmlRenderDependencies getDynamicHtmlRenderDependencies()

  Returns an instance of the `DynamicHtmlRenderDependencies` class to be used for dynamically adding render dependencies. The object returned from this method is valid only as long as the related `PortalLookAndFeel` object is valid.

  Returns
    The instance of `PortalLookAndFeel` associated with the current Look and Feel.

### addDynamicScriptDependency

    public void addDynamicScriptDependency(String eventHandler,
                                           String scriptFragment)

  Adds a script fragment associated with the specified event handler. This method allows for a dynamic equivalent to the skin and skeleton configuration sections for script dependencies. Multiple calls to this method for the same event handler are allowed and the order of the resulting fragments will be preserved. All script dependencies added via this method will be ordered subsequent to the static fragments specified in skin and skeleton configuration files.

  NOTE: Calls to `reinit()` will not affect script fragments added via this method.

  An example use of this method for an (X)HTML Look and Feel:

       PortalLookAndFeel plaf = PortalLookAndFeel.getInstance(request);
       plaf.addDynamicScriptDependency("onload", "alert('Page Loaded');");

  LIFECYCLE RESTRICTION: This method can only be called prior to the `render` lifecycle; calls during the `render` lifecycle will cause an `IllegalStateException`.

  Parameters
    `eventHandler` - The name of the event handler (i.e. "onload", "onunload", etc.)
    `scriptFragment` - The script fragment to associate with the specified event handler
  Throws
    `IllegalStateException` - If called during an inappropriate lifecycle.
  See Also
    "Skin and Skeleton configuration element <script-dependencies>"

### reinit

    public void reinit(String skinName)

  Calling this method reinitializes the Look and Feel with the specified values. NOTE: any values previously returned from this or related classes for the current request should be considered invalid.

  This is equivalent to calling `reinit(skinName, null, null, null, null, null)`.

  LIFECYCLE RESTRICTION: This method should only be called prior to the `preRender` lifecycle; calls during later lifecycles will cause undefined behavior.

  Parameters
    `skinName` - The name of the skin to be used
  See Also
    `reinit(String, String, String, String, String, String)`

### reinit

    public void reinit(String skinName,
                       String skinPath)

  Calling this method reinitializes the Look and Feel with the specified values. NOTE: any values previously returned from this or related classes for the current request should be considered invalid.

  This is equivalent to calling `reinit(skinName, skinPath, null, null, null, null)`.

  LIFECYCLE RESTRICTION: This method should only be called prior to the `preRender` lifecycle; calls during later lifecycles will cause undefined behavior.

  Parameters
    `skinName` - The name of the skin to be used
    `skinPath` - The webapp-relative base skin path
  See Also
    `reinit(String, String, String, String, String, String)`

### reinit

    public void reinit(String skinName,
                       String skinPath,
                       String skeletonName,
                       String skeletonPath)

  Calling this method reinitializes the Look and Feel with the specified values. NOTE: any values previously returned from this or related classes for the current request should be considered invalid.

  This is equivalent to calling `reinit(skinName, skinPath, null, skeletonName, skeletonPath, null)`.

  LIFECYCLE RESTRICTION: This method should only be called prior to the `preRender` lifecycle; calls during later lifecycles will cause undefined behavior.

  Parameters
    `skinName` - The name of the skin to be used
    `skinPath` - The webapp-relative base skin path
    `skeletonName` - The name of the skeleton to be used
    `skeletonPath` - The webapp-relative base skeleton path
  See Also
    `reinit(String, String, String, String, String, String)`

### reinit

    public void reinit(String skinName,
                       String skinPath,
                       String skinChromosomeName)

  Calling this method reinitializes the Look and Feel with the specified values. NOTE: any values previously returned from this or related classes for the current request should be considered invalid.

  This is equivalent to calling `reinit(skinName, skinPath, skinChromosomeName, null, null, null)`.

  LIFECYCLE RESTRICTION: This method should only be called prior to the `preRender` lifecycle; calls during later lifecycles will cause undefined behavior.

  Parameters
    `skinName` - The name of the skin to be used
    `skinPath` - The webapp-relative base skin path
    `skinChromosomeName` - The name of the skin chromosome to be used
  See Also
    `reinit(String, String, String, String, String, String)`

### reinit

    public void reinit(String skinName,
                       String skinPath,
                       String skinChromosomeName,
                       String skeletonName,
                       String skeletonPath,
                       String skeletonChromosomeName)

  Calling this method reinitializes the Look and Feel with the specified values. NOTE: any values previously returned from this or related classes for the current request should be considered invalid.

  Specifying a null value for a parameter implies the use of configured values or internal defaults. For example, specifying only a skin name (with nulls for the remaining parameters) will imply the following values:

  param | value
  --- | ---
  skinPath | /framework/skins
  skinChromosomeName | default
  skeletonName | default, or skin's target skeleton id
  skeletonPath | /framework/skeletons, or skin's target skeleton path
  skeletonChromosomeName | default

  This may produce unexpected results if the Look and Feel was originally configured with non-default values. For this reason, current values retrieved from the `Skin` and `Skeleton` objects should generally be used instead of null values.

  LIFECYCLE RESTRICTION: This method should only be called prior to the `preRender` lifecycle; calls during later lifecycles will cause undefined behavior.

  Parameters
    `skinName` - The name of the skin to be used
    `skinPath` - The webapp-relative base skin path
    `skinChromosomeName` - The name of the skin chromosome to be used
    `skeletonName` - The name of the skeleton to be used
    `skeletonPath` - The webapp-relative base skeleton path
    `skeletonChromosomeName` - The name of the skeleton chromosome to be used

### getInstance

    public static PortalLookAndFeel getInstance(javax.servlet.http.HttpServletRequest request)

  Returns an instance of the `PortalLookAndFeel` class associated with the current Look and Feel. The object returned from this method is only valid for the specified request.

  Parameters
    `request` - The current request
  Returns
    The instance of `PortalLookAndFeel` associated with the current Look and Feel.

### getInstance

    public static PortalLookAndFeel getInstance(javax.servlet.jsp.JspContext jspContext)

  Returns an instance of the `PortalLookAndFeel` class associated with the current Look and Feel. The object returned from this call is only valid for the specified context. This method is intended for use in situations where a `HttpServletRequest` is not available, such as in certain JSP 2.0 tag classes.

  Parameters
    `jspContext` - A valid `JspContext`
  Returns
    The instance of `PortalLookAndFeel` associated with the current Look and Feel.
  See Also
    `getInstance(HttpServletRequest)`

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