org.itsnat.core.domutil

Interface ElementTreeNodeRenderer

public interface ElementTreeNodeRenderer

Used by ElementTreeNode objects to render the value associated to the tree node.

Author:

Jose Maria Arranz Santamaria

See Also:

ElementTreeNode.setElementTreeNodeRenderer(ElementTreeNodeRenderer), ElementGroupManager.createDefaultElementTreeNodeRenderer()

Method Summary

Methods

Modifier and Type	Method and Description
void	renderTreeNode(ElementTreeNode treeNode, Object value, Element labelElem, boolean isNew) Renders as markup the specified value into the specified tree node.
void	unrenderTreeNode(ElementTreeNode treeNode, Element labelElem) Unrenders the markup of the specified tree node.

Method Detail

renderTreeNode

void renderTreeNode(ElementTreeNode treeNode,
                  Object value,
                  Element labelElem,
                  boolean isNew)

Renders as markup the specified value into the specified tree node.

Default implementation renders the specified value inside the first text node found below the label element.

Parameters:

treeNode - the target tree node.

value - the value to render.

labelElem - the label element to render the value into. Is a hint, if provided should be obtained by calling ElementTreeNode.getLabelElement().

isNew - true if this is the first time the markup is rendered. Default implementation ignores this parameter.

unrenderTreeNode

void unrenderTreeNode(ElementTreeNode treeNode,
                    Element labelElem)

Unrenders the markup of the specified tree node. This method is called before the markup is removed.

Default implementation does nothing.

Parameters:

treeNode - the target tree node.

labelElem - the label element to render the value into. Is a hint, if provided should be obtained by calling ElementTreeNode.getLabelElement().