com.sun.webui.jsf.renderkit.html.TreeRenderer Maven / Gradle / Ivy
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package com.sun.webui.jsf.renderkit.html;
import java.util.Iterator;
import com.sun.webui.jsf.component.Tree;
import com.sun.webui.jsf.component.TreeNode;
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.util.LogUtil;
import java.io.IOException;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.application.FacesMessage;
import com.sun.webui.html.HTMLAttributes;
import com.sun.webui.html.HTMLElements;
import org.json.JSONObject;
/**
* Renderer for a {@link Tree} component.
*/
@com.sun.faces.annotation.Renderer(@com.sun.faces.annotation.Renderer.Renders(componentFamily = "com.sun.webui.jsf.Tree"))
public class TreeRenderer extends TreeNodeRenderer {
private static final String SKIPTREE_LINK = "skipTreeLink";
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// 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();
}
}
/**
* 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 {
Iterator messages = context.getMessages();
if (messages != null) {
while (messages.hasNext()) {
FacesMessage fm = (FacesMessage) messages.next();
LogUtil.fine(fm.getSummary());
LogUtil.fine(fm.getDetail());
}
}
if (context == null || component == null) {
throw new NullPointerException();
}
if (!component.isRendered()) {
return;
}
ResponseWriter writer = context.getResponseWriter();
Tree node = (Tree) component;
// Get the theme
//
Theme theme = ThemeUtilities.getTheme(context);
// The title bar can be defined with either ui:tree tag attributes or facets.
// The title bar is rendered if the tree component includes imageURL property
// for the graphic, the text property for the title text, the content facet,
// or the image facet.
// render outermost div of the tree.
writer.write("\n\n\n");
writer.startElement(HTMLElements.DIV, node);
writer.writeAttribute(HTMLAttributes.ID, node.getClientId(context), null);
String nodeStyleClass = theme.getStyleClass(ThemeStyles.TREE);
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);
}
writer.write("\n");
// render the skip hyper link to support A11Y
RenderingUtilities.renderSkipLink(SKIPTREE_LINK,
theme.getStyleClass(ThemeStyles.SKIP_WHITE), null,
theme.getMessage("tree.skipTagAltText"), // NOI18N
null, node, context);
writer.write("\n");
// add the spacer
writer.write("\n");
String rootText = node.getText();
String rootImageURL = node.getImageURL();
boolean hasRootContentFacet =
(node.getFacet(Tree.TREE_CONTENT_FACET_NAME) != null);
boolean hasRootImageFacet =
(node.getFacet(Tree.TREE_IMAGE_FACET_NAME) != null);
if ((rootText != null && rootText.length() > 0) ||
rootImageURL != null ||
hasRootImageFacet || hasRootContentFacet) {
String titlebarSpacerDivID = node.getClientId(context) + "TitleBarSpacer";
String titlebarDivID = node.getClientId(context) + "TitleBar";
String lineImageDivID = node.getClientId(context) + "LineImages";
String lineTxtDivID = node.getClientId(context) + "LineText";
// title bar spacer
writer.startElement(HTMLElements.DIV, node);
writer.writeAttribute(HTMLAttributes.ID, titlebarSpacerDivID, null);
writer.writeAttribute(HTMLAttributes.CLASS,
theme.getStyleClass(ThemeStyles.TREE_ROOT_ROW_HEADER), null);
writer.endElement(HTMLElements.DIV);
writer.write("\n"); // NOI18N
writer.startElement(HTMLElements.DIV, node); // tree root row start
writer.writeAttribute(HTMLAttributes.ID, titlebarDivID, null);
writer.writeAttribute(HTMLAttributes.CLASS,
theme.getStyleClass(ThemeStyles.TREE_ROOT_ROW), null);
writer.write("\n");
Iterator imageIter = node.getImageKeys().iterator();
if (((node.getUrl() != null) && (node.getUrl().length() > 0)) ||
hasRootContentFacet) {
renderTreeRow(node, imageIter, context, writer);
} else {
writer.write("\n"); // NOI18N
writer.startElement(HTMLElements.SPAN, node);
writer.writeAttribute(HTMLAttributes.CLASS,
theme.getStyleClass(ThemeStyles.TREE_TITLE), null);
writer.write("\n"); // NOI18N
renderTreeRow(node, imageIter, context, writer);
writer.endElement(HTMLElements.SPAN);
}
writer.endElement(HTMLElements.DIV);
}
// Check if the TreeNode has children. If so, render each child which
// in turn would cause each of the descendent nodes to get rendered.
Iterator iter = node.getChildren().iterator();
//writer.writeText("\n", null);
String clientID = node.getClientId(context);
writer.startElement(HTMLElements.DIV, node);
writer.writeAttribute(HTMLAttributes.ID,
clientID + "_children", null);
while (iter.hasNext()) {
RenderingUtilities.renderComponent(iter.next(), context);
}
writer.endElement(HTMLElements.DIV);
//writer.writeText("\n", null);
String nodeID = null;
if (node.getSelected() != null) {
String childID = (String) node.getSelected();
TreeNode childNode = node.getChildNode(childID);
if (childNode != null) {
nodeID = childNode.getClientId(context);
}
}
try {
// Render JavaScript to initialize tree.
StringBuffer buff = new StringBuffer(256);
JSONObject json = new JSONObject();
json.put("id", clientID);
// Append JavaScript.
String jsObject = JavaScriptUtilities.getDomNode(context, node);
buff.append(JavaScriptUtilities.getModule("tree")).append("\n") // NOI18N
.append(JavaScriptUtilities.getModuleName("tree.init")) // NOI18N
.append("(") //NOI18N
.append(json.toString(JavaScriptUtilities.INDENT_FACTOR)).append(");\n"); //NOI18N
if (nodeID != null) {
buff.append(jsObject).append(".selectTreeNode('").append(nodeID).append("');");
} else {
buff.append(jsObject).append(".updateHighlight('").append(clientID).append("');");
}
// Render JavaScript.
JavaScriptUtilities.renderJavaScript(component, writer,
buff.toString());
// Render skip anchor.
RenderingUtilities.renderAnchor(SKIPTREE_LINK, node, context);
writer.write("\n"); // NOI18N
writer.endElement(HTMLElements.DIV);
} catch (Exception e) {
LogUtil.warning(e.getMessage(), e);
}
}
/**
* 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 {
// Do nothing...
}
}
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