com.sun.webui.jsf.renderkit.html.TreeNodeRenderer Maven / Gradle / Ivy
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package com.sun.webui.jsf.renderkit.html;
import com.sun.faces.annotation.Renderer;
import java.util.List;
import java.util.Iterator;
import javax.el.MethodExpression;
import com.sun.webui.jsf.component.ImageHyperlink;
import com.sun.webui.jsf.component.Hyperlink;
import com.sun.webui.jsf.component.IconHyperlink;
import com.sun.webui.theme.Theme;
import com.sun.webui.jsf.theme.ThemeStyles;
import com.sun.webui.jsf.util.JavaScriptUtilities;
import com.sun.webui.jsf.util.RenderingUtilities;
import com.sun.webui.jsf.util.ThemeUtilities;
import com.sun.webui.jsf.component.TreeNode;
import com.sun.webui.jsf.component.Tree;
import com.sun.webui.jsf.util.ComponentUtilities;
import java.io.IOException;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.event.ActionListener;
import com.sun.webui.html.HTMLAttributes;
import com.sun.webui.html.HTMLElements;
/**
* Renderer for a {@link TreeNode} component.
*/
@Renderer(@Renderer.Renders(componentFamily = "com.sun.webui.jsf.TreeNode"))
public class TreeNodeRenderer extends javax.faces.render.Renderer {
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Renderer Methods
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/**
* Does nothing
*
* @param context FacesContext for the current request
* @param component UIComponent to be decoded
*
* @exception NullPointerException if context or
* component is null
*/
@Override
public void decode(FacesContext context, UIComponent component) {
if (context == null || component == null) {
throw new NullPointerException();
}
}
/**
* Does nothing.
*
* @param context The current FacesContext
* @param component The Property object to render
*
* @exception IOException if an input/output error occurs
*/
@Override
public void encodeBegin(FacesContext context, UIComponent component)
throws IOException {
if (context == null || component == null) {
throw new NullPointerException();
}
}
/**
* Render a property component.
*
* @param context The current FacesContext
* @param component The Property object to render
*
* @exception IOException if an input/output error occurs
*/
@Override
public void encodeEnd(FacesContext context, UIComponent component)
throws IOException {
if (context == null || component == null) {
throw new NullPointerException();
}
if (!component.isRendered()) {
return;
}
ResponseWriter writer = context.getResponseWriter();
TreeNode node = (TreeNode) component;
// Get the theme
//
Theme theme = ThemeUtilities.getTheme(context);
Tree root = node.getAbsoluteRoot(node);
boolean csFlag = root.isClientSide();
// boolean esFlag = root.isExpandOnSelect();
// Check if the TreeNode has children. If so, render each child which
// in turn will invoke methods of this class.
// Check if the treeNode has facets, if so render these facets and
// disregard the corresponding attribute values that these facets
// override.
// If no facets, simply render according to the attribute values or
// assume default values wherever possible
writer.startElement(HTMLElements.DIV, node); //start of node div
writer.writeAttribute(HTMLAttributes.ID, node.getClientId(context), null);
// Set styleclass. First check if node is hidden. Else check if styleclass
// attribute has been supplied. Else set the default styleclass.
String nodeStyleClass = theme.getStyleClass(ThemeStyles.TREE_ROW);
if (!node.isVisible()) {
nodeStyleClass = theme.getStyleClass(ThemeStyles.HIDDEN);
} else if (node.getStyleClass() != null) {
nodeStyleClass = node.getStyleClass();
}
writer.writeAttribute(HTMLAttributes.CLASS, nodeStyleClass, null);
if (node.getStyle() != null) {
writer.writeAttribute(HTMLAttributes.STYLE,
node.getStyle(), null);
}
// Getting the list of images for a given row before they are
// used for the first time.
Iterator imageIter = node.getImageKeys().iterator();
IconHyperlink ihl = node.getTurnerImageHyperlink();
UIComponent imageFacet = null;
if (ihl != null) {
imageFacet = ihl.getImageFacet();
}
StringBuffer buff = new StringBuffer();
buff.append(JavaScriptUtilities.getDomNode(context, root)).append(".onTreeNodeClick(this, '");
if (imageFacet != null) {
buff.append(imageFacet.getClientId(context));
} else {
buff.append("null");
}
buff.append("', event);");
writer.writeAttribute(HTMLAttributes.ONCLICK,
buff.toString(), null);
//writer.writeText("\n", null);
// Render the treeRow now. Passing the retrived
// iterator so that the same task does not have to
// be repeated inside the method.
renderTreeRow(node, imageIter, context, writer);
writer.endElement(HTMLElements.DIV); // treerow div ends
//writer.writeText("\n", null);
List children = node.getChildren();
// If node is expanded or if its a client side tree we need to lay
// down the next level of child nodes. Child nodes will be visible
// only if node is visible and the client side node handler
// is meant to show the nodes.
//
if (node.isExpanded() || csFlag) {
//writer.writeText("\n", null);
writer.startElement(HTMLElements.DIV, node);
writer.writeAttribute(HTMLAttributes.ID,
node.getClientId(context) + "_children", null);
if (!node.isVisible()) {
writer.writeAttribute(HTMLAttributes.CLASS,
theme.getStyleClass(ThemeStyles.HIDDEN), null);
}
if (!node.isExpanded()) {
writer.writeAttribute(HTMLAttributes.STYLE, "display:none", null);
}
// writer.writeText("\n", null);
Iterator iter = children.iterator();
while (iter.hasNext()) {
RenderingUtilities.renderComponent(iter.next(), context);
}
writer.endElement(HTMLElements.DIV);
// writer.writeText("\n", null);
}
}
/**
* Does nothing.
*
* @param context The current FacesContext
* @param component The Property object to render
*
* @exception IOException if an input/output error occurs
*/
@Override
public void encodeChildren(FacesContext context, UIComponent component)
throws IOException {
if (context == null || component == null) {
throw new NullPointerException();
}
}
private void setToolTip(ImageHyperlink ihl, TreeNode node) {
ihl.setToolTip(node.getText() + " node"); // GF-required 508 change
ihl.setAlt(node.getText() + " node image"); // GF-required 508 change
}
/**
* Renders each row of the tree. A tree row consists of a set of images
* followed by the actual row image or text.
*
* @param node The TreeNode object whose row is to be rendered
* @param context The current FacesContext
* @param writer The current ResponseWriter
*
* @exception IOException if an input/output error occurs
*/
protected void renderTreeRow(TreeNode node, Iterator imageIter,
FacesContext context, ResponseWriter writer) throws IOException {
Tree root = node.getAbsoluteRoot(node);
Theme theme = ThemeUtilities.getTheme(context);
writer.startElement(HTMLElements.DIV, node); //image div
String lineimagesID = node.getClientId(context) + "LineImages";
writer.writeAttribute(HTMLAttributes.ID, lineimagesID, null);
writer.writeAttribute(HTMLAttributes.CLASS,
theme.getStyleClass(ThemeStyles.FLOAT), null);
// render turner and other images before the actual
// data for a given tree row.
// Iterator imageIter = node.getImageKeys().iterator();
int count = 0;
while (imageIter.hasNext()) {
// read each image IconHyperlink or ImageHyperlink and render it
UIComponent imageComp = (UIComponent) imageIter.next();
RenderingUtilities.renderComponent(imageComp, context);
//writer.writeText("\n", null);
}
// check if image facet has been supplied. If so, render it.
UIComponent imageFacet = node.getFacet(Tree.TREE_IMAGE_FACET_NAME);
if (imageFacet != null) {
if (imageFacet instanceof ImageHyperlink) {
ImageHyperlink ihl = (ImageHyperlink) imageFacet;
setToolTip(ihl, node);
}
RenderingUtilities.renderComponent(imageFacet, context);
} else {
String imageURL = node.getImageURL();
if (imageURL != null && imageURL.length() > 0) {
ImageHyperlink ihl =
node.getNodeImageHyperlink();
setToolTip(ihl, node);
renderImageOrText(node, ihl, context);
}
}
//writer.writeText("\n", null);
writer.endElement(HTMLElements.DIV); // handler/image div ends here
//writer.writeText("\n", null);
// check if content facet has been supplied. If so, render it.
UIComponent contentFacet = node.getFacet(Tree.TREE_CONTENT_FACET_NAME);
writer.startElement(HTMLElements.DIV, node);
writer.writeAttribute(HTMLAttributes.ID, node.getClientId(context) + "Text", null);
String textStyle = theme.getStyleClass(ThemeStyles.TREE_CONTENT) + " " +
theme.getStyleClass(ThemeStyles.TREE_NODE_IMAGE_HEIGHT);
writer.writeAttribute(HTMLAttributes.CLASS, textStyle, null);
//writer.writeText("\n", null);
if (contentFacet != null) {
RenderingUtilities.renderComponent(contentFacet, context);
} else { // render text attribute value if supplied
String treeText = node.getText();
String nodeURL = node.getUrl();
boolean hasText = ((treeText != null) && (treeText.length() > 0));
boolean hasURL = ((nodeURL != null) && (nodeURL.length() > 0));
MethodExpression mex = node.getActionExpression();
boolean hasAction = (mex != null);
if (hasURL || hasAction) {
Hyperlink link = node.getContentHyperlink(); // new Hyperlink();
renderImageOrText(node, link, context);
} else if (treeText != null && treeText.length() > 0) {
writer.write(treeText);
}
}
//writer.writeText("\n", null);
writer.endElement(HTMLElements.DIV); // content DIV ends
//writer.writeText("\n", null);
}
private void renderImageOrText(TreeNode node, Hyperlink link,
FacesContext context) throws IOException {
Tree root = node.getAbsoluteRoot(node);
boolean csFlag = root.isClientSide();
boolean esFlag = root.isExpandOnSelect();
String nodeURL = node.getUrl();
MethodExpression mex = node.getActionExpression();
ActionListener[] nodeListeners = node.getActionListeners();
boolean hasURL = ((nodeURL != null) && (nodeURL.length() > 0));
boolean hasAction = (mex != null);
if (hasURL || hasAction) {
String jsObject = JavaScriptUtilities.getDomNode(context, root);
if (hasAction || ((nodeListeners != null) && (nodeListeners.length > 0))) {
link.setOnClick(jsObject +
".treecontent_submit('" + node.getClientId(context) + "');"); //NOI18N
} else {
if (esFlag) {
IconHyperlink ihl =
(IconHyperlink) ComponentUtilities.getPrivateFacet(node,
"turner", true);
UIComponent iconImage = null;
StringBuffer buff = new StringBuffer();
buff.append(jsObject).append(".selectTreeNode(") //NOI18N
.append(jsObject).append(".findContainingTreeNode(this).id);") //NOI18N
.append(jsObject).append(".expandTurner(this, '"); //NOI18N
if (ihl != null) {
buff.append(ihl.getClientId(context));
iconImage = ihl.getImageFacet();
} else {
buff.append("null");
}
buff.append("', '");
if (iconImage != null) {
buff.append(iconImage.getClientId(context));
} else {
buff.append("null");
}
buff.append("', ").append(csFlag).append(", event);");
link.setOnClick(buff.toString());
}
}
RenderingUtilities.renderComponent(link, context);
}
}
}