org.xhtmlrenderer.css.extend
Interface TreeResolver

All Known Implementing Classes:

DOMTreeResolver

public interface TreeResolver

Author:

scott

Gives the css matcher access to the information it needs about the tree structure.

Elements are the "things" in the tree structure that can be matched by the matcher.

Field Summary

static String

NO_NAMESPACE

Method Summary

String	getElementName(Object element) returns the name of the element so that it may match against the selectors
Object	getParentElement(Object element) returns the parent element of an element, or null if this was the root element
int	getPositionOfElement(Object element) Returns the index of the position of the submitted element among its element node siblings.
Object	getPreviousSiblingElement(Object node) The previous sibling element, or null if none exists
boolean	isFirstChildElement(Object element) returns true if this element is the first child element of its parent
boolean	isLastChildElement(Object element) returns true if this element is the last child element of its parent
boolean	matchesElement(Object element, String namespaceURI, String name) Returns true if element has the local name name and namespace URI namespaceURI.

Field Detail

NO_NAMESPACE

static final String NO_NAMESPACE

See Also:

Constant Field Values

Method Detail

getParentElement

Object getParentElement(Object element)

returns the parent element of an element, or null if this was the root element

getElementName

String getElementName(Object element)

returns the name of the element so that it may match against the selectors

getPreviousSiblingElement

Object getPreviousSiblingElement(Object node)

The previous sibling element, or null if none exists

isFirstChildElement

boolean isFirstChildElement(Object element)

returns true if this element is the first child element of its parent

isLastChildElement

boolean isLastChildElement(Object element)

returns true if this element is the last child element of its parent

getPositionOfElement

int getPositionOfElement(Object element)

Returns the index of the position of the submitted element among its element node siblings.

Parameters:

element -

Returns:

-1 in case of error, 0 indexed position otherwise

matchesElement

boolean matchesElement(Object element,
                       String namespaceURI,
                       String name)

Returns true if element has the local name name and namespace URI namespaceURI.

Parameters:

element -

namespaceURI - The namespace to match, may be null to signify any namespace. Use NO_NAMESPACE to signify that name should only match when there is no namespace defined on element.

name - The name to match, may not be null