org.apache.shindig.gadgets.rewrite
Class StyleAdjacencyVisitor

java.lang.Object
  org.apache.shindig.gadgets.rewrite.StyleAdjacencyVisitor

All Implemented Interfaces:

DomWalker.Visitor

public class StyleAdjacencyVisitor
extends Object
implements DomWalker.Visitor

Visitor that pulls all stylesheet nodes in a document to head, in the order they were found in the document. This maintains CSS semantics in all but the most pathological (JS manipulating CSS through stylesheets in an order-dependent way) cases while reducing browser reflows and making CSS concatenated-proxying more likely.

Since:

2.0.0

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.shindig.gadgets.rewrite.DomWalker.Visitor

DomWalker.Visitor.VisitStatus

Constructor Summary

StyleAdjacencyVisitor()

Method Summary

boolean	revisit(Gadget gadget, List<Node> nodes) Revisit a node in the DOM that was marked by the visit(Gadget, Node) as reserved during DOM traversal.
DomWalker.Visitor.VisitStatus	visit(Gadget gadget, Node node) Visit a particular Node in the DOM.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StyleAdjacencyVisitor

public StyleAdjacencyVisitor()

Method Detail

visit

public DomWalker.Visitor.VisitStatus visit(Gadget gadget,
                                           Node node)
                                    throws RewritingException

Description copied from interface: DomWalker.Visitor

Visit a particular Node in the DOM.

Specified by:

visit in interface DomWalker.Visitor

Parameters:

gadget - Context for the request.

node - Node being visited.

Returns:

Status, see VisitStatus

Throws:

RewritingException

revisit

public boolean revisit(Gadget gadget,
                       List<Node> nodes)
                throws RewritingException

Description copied from interface: DomWalker.Visitor

Revisit a node in the DOM that was marked by the visit(Gadget, Node) as reserved during DOM traversal.

Specified by:

revisit in interface DomWalker.Visitor

Parameters:

gadget - Context for the request.

nodes - Nodes being revisited, previously marked as reserved.

Returns:

True if any node modified, false otherwise.

Throws:

RewritingException