package org.apache.myfaces.tobago.renderkit.html.scarborough.standard.tag;
/*
* Copyright 2002-2005 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Created 07.02.2003 16:00:00.
* $Id: TreeRenderer.java 374936 2006-02-04 21:47:46Z bommel $
*/
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import static org.apache.myfaces.tobago.TobagoConstants.ATTR_MUTABLE;
import static org.apache.myfaces.tobago.TobagoConstants.ATTR_STYLE;
import org.apache.myfaces.tobago.component.ComponentUtil;
import org.apache.myfaces.tobago.component.UITree;
import org.apache.myfaces.tobago.component.UITreeNode;
import org.apache.myfaces.tobago.config.TobagoConfig;
import org.apache.myfaces.tobago.context.ResourceManagerUtil;
import org.apache.myfaces.tobago.model.TreeState;
import org.apache.myfaces.tobago.renderkit.RenderUtil;
import org.apache.myfaces.tobago.renderkit.RendererBase;
import org.apache.myfaces.tobago.renderkit.html.HtmlRendererUtil;
import org.apache.myfaces.tobago.webapp.TobagoResponseWriter;
import javax.faces.component.NamingContainer;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import java.io.IOException;
import java.io.StringWriter;
public class TreeRenderer extends RendererBase {
private static final Log LOG = LogFactory.getLog(TreeRenderer.class);
// tree resources (TREE_IMAGES)
private static final String[] TREE_IMAGES = {
"openfoldericon.gif",
"foldericon.gif",
"unchecked.gif",
"checked.gif",
"new.gif",
"T.gif",
"L.gif",
"I.gif",
"Lminus.gif",
"Tminus.gif",
"Rminus.gif",
"Lplus.gif",
"Tplus.gif",
"Rplus.gif",
};
public void decode(FacesContext facesContext, UIComponent component) {
if (ComponentUtil.isOutputOnly(component)) {
return;
}
UITree tree = (UITree) component;
TreeState state = tree.getState();
if (state != null) {
if ("Tree".equals(tree.getRendererType())) {
state.clearExpandState();
}
if (isSelectable(tree)) {
state.clearSelection();
}
if (ComponentUtil.getBooleanAttribute(tree, ATTR_MUTABLE)) {
state.setMarker(null);
}
}
tree.setValid(true);
}
public static boolean isSelectable(UITree tree) {
return tree.isSelectableTree();
}
public static String createJavascriptVariable(String clientId) {
return clientId == null
? null
: clientId.replace(NamingContainer.SEPARATOR_CHAR, '_');
}
public void encodeEndTobago(FacesContext facesContext,
UIComponent component) throws IOException {
UITree tree = (UITree) component;
String clientId = tree.getClientId(facesContext);
UITreeNode root = tree.getRoot();
TobagoResponseWriter writer = (TobagoResponseWriter) facesContext.getResponseWriter();
writer.startElement("div", tree);
writer.writeComponentClass();
writer.writeAttribute("style", null, ATTR_STYLE);
writer.startElement("input", tree);
writer.writeAttribute("type", "hidden", null);
writer.writeNameAttribute(clientId);
writer.writeIdAttribute(clientId);
writer.writeAttribute("value", ";", null);
writer.endElement("input");
writer.startElement("input", tree);
writer.writeAttribute("type", "hidden", null);
writer.writeNameAttribute(clientId + UITree.MARKER);
writer.writeIdAttribute(clientId + UITree.MARKER);
writer.writeAttribute("value", "", null);
writer.endElement("input");
if (isSelectable(tree)) {
writer.startElement("input", tree);
writer.writeAttribute("type", "hidden", null);
writer.writeNameAttribute(clientId + UITree.SELECT_STATE);
writer.writeIdAttribute(clientId + UITree.SELECT_STATE);
writer.writeAttribute("value", ";", null);
writer.endElement("input");
}
if (ComponentUtil.getBooleanAttribute(tree, ATTR_MUTABLE)) {
// writer.startElement("div", null);
// writer.writeAttribute("style", "border: 2px groove #ddeeff", null);
// writer.writeText("", null);
UIComponent toolbar = tree.getFacet("mutableToolbar");
if (toolbar == null) {
toolbar = tree.getFacet("defaultToolbar");
}
RenderUtil.encode(facesContext, toolbar);
// writer.endElement("div");
}
// writer.startElement("div", null);
writer.startElement("table", tree);
writer.writeAttribute("cellpadding", "0", null);
writer.writeAttribute("cellspacing", "0", null);
writer.writeAttribute("border", "0", null);
writer.writeAttribute("summary", "", null);
writer.writeComponentClass();
writer.startElement("tr", null);
writer.startElement("td", null);
writer.writeIdAttribute(clientId + "-cont");
writer.writeComment("placeholder for treecontent");
writer.endElement("td");
writer.endElement("tr");
writer.endElement("table");
// writer.endElement("div");
String script = createJavascript(facesContext, clientId, root);
final String[] scripts = {"script/tree.js"};
ComponentUtil.findPage(tree).getScriptFiles().add(scripts[0]);
if (!TobagoConfig.getInstance(facesContext).isAjaxEnabled()) {
HtmlRendererUtil.startJavascript(writer);
writer.writeText(script, null);
HtmlRendererUtil.endJavascript(writer);
} else {
HtmlRendererUtil.writeScriptLoader(facesContext, scripts,
new String[] {script.replaceAll("\n", " ")});
}
writer.endElement("div");
}
private String createJavascript(FacesContext facesContext, String clientId,
UITreeNode root)
throws IOException {
StringBuffer sb = new StringBuffer();
sb.append("{");
sb.append("var treeResourcesHelp = new Object();\n");
for (int i = 0; i < TREE_IMAGES.length; i++) {
sb.append("treeResourcesHelp.");
sb.append(TREE_IMAGES[i].replace('.', '_'));
sb.append(" = \"");
sb.append(ResourceManagerUtil.getImageWithPath(facesContext, "image/" + TREE_IMAGES[i]));
sb.append("\";\n");
}
sb.append("treeResourcesHelp.getImage = function (name) {\n");
sb.append(" var result = this[name.replace('.', '_')];\n");
sb.append(" if (result) {\n");
sb.append(" return result;\n");
sb.append(" } else {\n");
sb.append(" return \"");
sb.append(ResourceManagerUtil.getImageWithPath(facesContext, "image/blank.gif"));
sb.append("\";\n");
sb.append(" }\n");
sb.append("};\n");
sb.append(getNodesAsJavascript(facesContext, root));
sb.append(" var treeDiv = document.getElementById('");
sb.append(clientId);
sb.append("-cont');\n");
sb.append("treeDiv.innerHTML = ");
String rootNode = createJavascriptVariable(root.getClientId(facesContext));
sb.append(rootNode);
sb.append(".toString(0, true);\n");
sb.append(rootNode);
sb.append(".initSelection();\n");
sb.append("}");
return sb.toString();
}
protected String getNodesAsJavascript(FacesContext facesContext, UITreeNode root) throws IOException {
TobagoResponseWriter writer = (TobagoResponseWriter) facesContext.getResponseWriter();
StringWriter stringWriter = new StringWriter();
facesContext.setResponseWriter(writer.cloneWithWriter(stringWriter));
RenderUtil.encode(facesContext, root);
facesContext.setResponseWriter(writer);
return stringWriter.toString();
}
// ///////////////////////////////////////////// bean getter + setter
protected String nodeStateId(FacesContext facesContext, UITreeNode node) {
// this must do the same as nodeStateId() in tree.js
String clientId = node.getClientId(facesContext);
int last = clientId.lastIndexOf(':') + 1;
return clientId.substring(last);
}
}