/**
* License Agreement.
*
* Rich Faces - Natural Ajax for Java Server Faces (JSF)
*
* Copyright (C) 2007 Exadel, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.richfaces.renderkit;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.faces.component.UIComponent;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.convert.Converter;
import org.ajax4jsf.component.UIDataAdaptor;
import org.ajax4jsf.javascript.ScriptUtils;
import org.ajax4jsf.renderkit.ComponentVariables;
import org.ajax4jsf.renderkit.ComponentsVariableResolver;
import org.ajax4jsf.renderkit.RendererUtils.HTML;
import org.richfaces.component.UIOrderingBaseComponent;
import org.richfaces.component.UIOrderingList;
import org.richfaces.component.UIOrderingBaseComponent.ItemState;
import org.richfaces.component.util.HtmlUtil;
public abstract class OrderingListRendererBase extends OrderingComponentRendererBase {
private static final String SELECTION_STATE_VAR_NAME = "selectionState";
public OrderingListRendererBase() {
super(MESSAGE_BUNDLE_NAME);
}
private static final String MESSAGE_BUNDLE_NAME = OrderingListRendererBase.class.getPackage().getName() + ".orderingList";
private final static Character ACTIVITY_MARKER = new Character('a');
private final static Character SELECTION_MARKER = new Character('s');
private final static String ITEM_SEPARATOR = ",";
protected static final OrderingComponentRendererBase.ControlsHelper[] HELPERS = OrderingComponentControlsHelper.HELPERS;
protected Class getComponentClass() {
return UIOrderingList.class;
}
public boolean getRendersChildren() {
return true;
}
public void encodeBegin(FacesContext context, UIComponent component)
throws IOException {
ComponentVariables variables = ComponentsVariableResolver.getVariables(this, component);
variables.setVariable(SELECTION_STATE_VAR_NAME, new SelectionState());
super.encodeBegin(context, component);
}
public boolean isHeaderExists(FacesContext context, UIOrderingBaseComponent component) {
return isHeaderExists(context, component, "header");
}
public void encodeControlsFacets(FacesContext context, UIOrderingList orderingList)
throws IOException {
String clientId = orderingList.getClientId(context);
ResponseWriter writer = context.getResponseWriter();
//proper assumption about helpers ordering
int divider = HELPERS.length / 2;
ComponentVariables variables = ComponentsVariableResolver.getVariables(this, orderingList);
SelectionState selectionState = (SelectionState) variables.getVariable(SELECTION_STATE_VAR_NAME);
for (int i = 0; i < HELPERS.length; i++) {
boolean boundarySelection = i < divider ? selectionState.isFirstSelected() : selectionState.isLastSelected();
boolean enabled = selectionState.isSelected() && !boundarySelection;
if (i % 2 == 1) {
enabled = !enabled;
}
if (HELPERS[i].isRendered(context, orderingList)) {
//proper assumption about helpers ordering
encodeControlFacet(context, orderingList, HELPERS[i], clientId, writer,
enabled, "rich-ordering-list-button", " rich-ordering-control");
}
}
}
private static final class OrderingListRendererTableHolder extends TableHolder {
private Converter converter;
public OrderingListRendererTableHolder(UIDataAdaptor table, Converter converter) {
super(table);
this.converter = converter;
}
public Converter getConverter() {
return converter;
}
}
public void encodeRows(FacesContext context, UIComponent component)
throws IOException {
UIOrderingBaseComponent orderingBaseComponent = (UIOrderingBaseComponent) component;
super.encodeRows(context, component, new OrderingListRendererTableHolder(orderingBaseComponent,
getConverter(context, orderingBaseComponent, true)));
}
public void encodeOneRow(FacesContext context, TableHolder holder)
throws IOException {
ResponseWriter writer = context.getResponseWriter();
OrderingListRendererTableHolder tableHolder = (OrderingListRendererTableHolder) holder;
UIOrderingList table = (UIOrderingList) holder.getTable();
String clientId = holder.getTable().getClientId(context);
writer.startElement(HTML.TR_ELEMENT, table);
writer.writeAttribute("id", clientId, null);
StringBuffer rowClassName = new StringBuffer("rich-ordering-list-row");
String rowClass = holder.getRowClass();
if (rowClass != null) {
rowClassName.append(' ');
rowClassName.append(rowClass);
}
StringBuffer cellClassName = new StringBuffer("rich-ordering-list-cell");
ComponentVariables variables = ComponentsVariableResolver.getVariables(this, table);
ItemState state = getItemState(context, table, variables);
boolean active = state.isActive();
// if (active) {
// rowClassName.append(" rich-ordering-list-row-active");
// cellClassName.append(" rich-ordering-list-cell-active");
// }
boolean selected = state.isSelected();
if (selected) {
rowClassName.append(" rich-ordering-list-row-selected");
cellClassName.append(" rich-ordering-list-cell-selected");
}
SelectionState selectionState = (SelectionState) variables.getVariable(SELECTION_STATE_VAR_NAME);
selectionState.addState(selected);
writer.writeAttribute("class", rowClassName.toString(), null);
boolean columnRendered = false;
int colCounter = 0;
for (Iterator iterator = table.columns(); iterator.hasNext();) {
UIComponent component = (UIComponent) iterator.next();
if (component.isRendered()) {
writer.startElement(HTML.td_ELEM, table);
//if (!iterator.hasNext()) {
// cellClassName.append(" rich-ordering-list-cell-end");
//}
Object width = component.getAttributes().get("width");
if (width != null) {
writer.writeAttribute("style", "width: " + HtmlUtil.qualifySize(width.toString()), null);
}
String columnClass = holder.getColumnClass(colCounter);
if (columnClass != null) {
writer.writeAttribute("class", cellClassName.toString().concat(" " + columnClass), null);
} else {
writer.writeAttribute("class", cellClassName.toString(), null);
}
//writer.write(" ");
writer.startElement(HTML.IMG_ELEMENT, table);
writer.writeAttribute(HTML.src_ATTRIBUTE, getResource("/org/richfaces/renderkit/html/images/spacer.gif").getUri(context, null), null);
writer.writeAttribute(HTML.style_ATTRIBUTE, "width:1px;height:1px;", null);
writer.writeAttribute(HTML.alt_ATTRIBUTE, " ", null);
writer.endElement(HTML.IMG_ELEMENT);
renderChildren(context, component);
if (!columnRendered) {
writer.startElement(HTML.INPUT_ELEM, table);
writer.writeAttribute(HTML.id_ATTRIBUTE, clientId + "StateInput", null);
writer.writeAttribute(HTML.autocomplete_ATTRIBUTE, "off", null);
writer.writeAttribute(HTML.TYPE_ATTR, HTML.INPUT_TYPE_HIDDEN, null);
writer.writeAttribute(HTML.NAME_ATTRIBUTE, table.getBaseClientId(context), null);
StringBuffer value = new StringBuffer();
if (selected) {
value.append('s');
}
if (active) {
value.append('a');
}
value.append(table.getRowKey());
value.append(':');
value.append(tableHolder.getConverter().getAsString(context, table, table.getRowData()));
writer.writeAttribute(HTML.value_ATTRIBUTE, value.toString(), null);
writer.endElement(HTML.INPUT_ELEM);
columnRendered = true;
}
writer.endElement(HTML.td_ELEM);
}
colCounter++;
}
writer.endElement(HTML.TR_ELEMENT);
}
public void doDecode(FacesContext context, UIComponent component) {
UIOrderingList orderingList = (UIOrderingList) component;
String clientId = orderingList.getBaseClientId(context);
ExternalContext externalContext = context.getExternalContext();
Map<String, String[]> requestParameterValuesMap = externalContext
.getRequestParameterValuesMap();
String[] strings = (String[]) requestParameterValuesMap.get(clientId);
if (strings != null && strings.length != 0) {
Set selection = new HashSet();
Object activeItem = null;
Map map = new LinkedHashMap();
Converter converter = getConverter(context, orderingList, false);
for (int i = 0; i < strings.length; i++) {
String string = strings[i];
int idx = string.indexOf(':');
Object value = converter.getAsObject(context, orderingList, string.substring(idx + 1));
String substring = string.substring(0, idx);
idx = 0;
if (substring.charAt(idx) == 's') {
selection.add(value);
idx++;
}
if (substring.charAt(idx) == 'a') {
activeItem = value;
idx++;
}
substring = substring.substring(idx);
Object key = new Integer(substring);
map.put(key, value);
}
orderingList.setSubmittedString(map, selection, activeItem);
}
}
}