/**
*
*/
package org.richfaces.renderkit;
import java.io.IOException;
import java.io.StringWriter;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
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.renderkit.ComponentVariables;
import org.ajax4jsf.renderkit.ComponentsVariableResolver;
import org.ajax4jsf.renderkit.RendererUtils.HTML;
import org.richfaces.component.UIListShuttle;
import org.richfaces.component.UIOrderingBaseComponent;
import org.richfaces.component.UIOrderingBaseComponent.ItemState;
import org.richfaces.component.util.HtmlUtil;
import org.richfaces.model.ListShuttleRowKey;
/**
* @author Nick Belaevski
*
*/
public abstract class ListShuttleRendererBase extends OrderingComponentRendererBase {
protected static final String SELECTION_STATE_VAR_NAME = "selectionState";
public final static String FACET_SOURCE_CAPTION = "sourceCaption";
public final static String FACET_TARGET_CAPTION = "targetCaption";
protected static final OrderingComponentRendererBase.ControlsHelper[] SHUTTLE_HELPERS = ListShuttleControlsHelper.HELPERS;
protected static final OrderingComponentRendererBase.ControlsHelper[] TL_HELPERS = OrderingComponentControlsHelper.HELPERS;
private static final String MESSAGE_BUNDLE_NAME = OrderingListRendererBase.class.getPackage().getName() + ".listShuttle";
private static class ListShuttleRendererTableHolder extends TableHolder {
private boolean source;
private Converter converter;
public ListShuttleRendererTableHolder(UIDataAdaptor table, Converter converter, boolean source) {
super(table);
this.converter = converter;
this.source = source;
}
public boolean isSource() {
return source;
}
public Converter getConverter() {
return converter;
}
}
public ListShuttleRendererBase() {
super(MESSAGE_BUNDLE_NAME);
}
public void encodeSLCaption(FacesContext context, UIOrderingBaseComponent shuttle) throws IOException {
encodeCaption(context, shuttle, FACET_SOURCE_CAPTION, "rich-shuttle-source-caption",
ListShuttleControlsHelper.ATTRIBUTE_SOURCE_CAPTION_LABEL);
}
public void encodeTLCaption(FacesContext context, UIComponent shuttle) throws IOException {
encodeCaption(context, shuttle, FACET_TARGET_CAPTION, "rich-shuttle-target-caption",
ListShuttleControlsHelper.ATTRIBUTE_TARGET_CAPTION_LABEL);
}
public void encodeSLHeader(FacesContext context, UIOrderingBaseComponent shuttle) throws IOException {
encodeHeader(context, shuttle, "rich-table-header", "rich-shuttle-header-tab-cell", "sourceHeaderClass");
}
public void encodeTLHeader(FacesContext context, UIOrderingBaseComponent shuttle) throws IOException {
encodeHeader(context, shuttle, "rich-table-header", "rich-shuttle-header-tab-cell", "sourceHeaderClass");
}
public boolean isHeaderExists(FacesContext context, UIOrderingBaseComponent component) {
return isHeaderExists(context, component, "header");
}
protected String encodeRows(FacesContext context, UIOrderingBaseComponent shuttle, boolean source) throws IOException {
ResponseWriter writer = context.getResponseWriter();
StringWriter stringWriter = new StringWriter();
context.setResponseWriter(writer.cloneWithWriter(stringWriter));
encodeRows(context, shuttle, new ListShuttleRendererTableHolder(shuttle, getConverter(context, shuttle), source));
context.getResponseWriter().flush();
context.setResponseWriter(writer);
return stringWriter.getBuffer().toString();
}
public void encodeOneRow(FacesContext context, TableHolder holder)
throws IOException {
UIListShuttle table = (UIListShuttle) holder.getTable();
ListShuttleRendererTableHolder shuttleRendererTableHolder = (ListShuttleRendererTableHolder) holder;
ListShuttleRowKey listShuttleRowKey = (ListShuttleRowKey) table.getRowKey();
if (listShuttleRowKey != null) {
boolean source = shuttleRendererTableHolder.isSource();
if (source == listShuttleRowKey.isFacadeSource()) {
ResponseWriter writer = context.getResponseWriter();
String clientId = table.getClientId(context);
writer.startElement(HTML.TR_ELEMENT, table);
writer.writeAttribute("id", clientId, null);
StringBuffer rowClassName = new StringBuffer();
StringBuffer cellClassName = new StringBuffer();
if (source) {
rowClassName.append("rich-shuttle-source-row");
cellClassName.append("rich-shuttle-source-cell");
} else {
rowClassName.append("rich-shuttle-target-row");
cellClassName.append("rich-shuttle-target-cell");
}
String rowClass = holder.getRowClass();
if (rowClass != null) {
rowClassName.append(' ');
rowClassName.append(rowClass);
}
ComponentVariables variables = ComponentsVariableResolver.getVariables(this, table);
SelectionState selectionState = (SelectionState) variables.getVariable(SELECTION_STATE_VAR_NAME);
ItemState itemState = getItemState(context, table, variables);
boolean active = itemState.isActive();
boolean selected = itemState.isSelected();
selectionState.addState(selected);
if (selected) {
if (source) {
rowClassName.append(" rich-shuttle-source-row-selected");
cellClassName.append(" rich-shuttle-source-cell-selected");
} else {
rowClassName.append(" rich-shuttle-target-row-selected");
cellClassName.append(" rich-shuttle-target-cell-selected");
}
}
writer.writeAttribute("class", rowClassName.toString(), null);
int colCounter = 0;
boolean columnRendered = false;
for (Iterator iterator = table.columns(); iterator.hasNext();) {
UIComponent component = (UIComponent) iterator.next();
if (component.isRendered()) {
writer.startElement(HTML.td_ELEM, table);
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.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.endElement(HTML.IMG_ELEMENT);
renderChildren(context, component);
if (!columnRendered) {
writer.startElement(HTML.INPUT_ELEM, table);
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(shuttleRendererTableHolder.getConverter().getAsString(context, table, table.getRowData()));
writer.writeAttribute(HTML.value_ATTRIBUTE, value.toString(), null);
writer.writeAttribute(HTML.id_ATTRIBUTE, clientId + "StateInput", null);
writer.endElement(HTML.INPUT_ELEM);
columnRendered = true;
}
writer.endElement(HTML.td_ELEM);
}
colCounter++;
}
writer.endElement(HTML.TR_ELEMENT);
}
}
}
public void encodeChildren(FacesContext context, UIComponent component)
throws IOException {
if (component.isRendered()) {
ResponseWriter writer = context.getResponseWriter();
doEncodeChildren(writer, context, component);
}
}
public void encodeShuttleControlsFacets(FacesContext context, UIOrderingBaseComponent component,
SelectionState sourceSelectionState, SelectionState targetSelectionState)
throws IOException {
String clientId = component.getClientId(context);
ResponseWriter writer = context.getResponseWriter();
int divider = SHUTTLE_HELPERS.length / 2;
for (int i = 0; i < SHUTTLE_HELPERS.length; i++) {
SelectionState state = (i < divider ? sourceSelectionState : targetSelectionState);
boolean enabled;
if (i <= 1 || i >= SHUTTLE_HELPERS.length - 2) {
enabled = state.isItemExist();
} else {
enabled = state.isSelected();
}
if (i % 2 == 1) {
enabled = !enabled;
}
if (SHUTTLE_HELPERS[i].isRendered(context, component)) {
//proper assumption about helpers ordering
encodeControlFacet(context, component, SHUTTLE_HELPERS[i], clientId, writer, enabled,
"rich-list-shuttle-button", " rich-shuttle-control");
}
}
}
public void encodeTLControlsFacets(FacesContext context, UIOrderingBaseComponent component, SelectionState selectionState)
throws IOException {
String clientId = component.getClientId(context);
ResponseWriter writer = context.getResponseWriter();
int divider = TL_HELPERS.length / 2;
for (int i = 0; i < TL_HELPERS.length; i++) {
boolean boundarySelection = i < divider ? selectionState.isFirstSelected() : selectionState.isLastSelected();
boolean enabled = selectionState.isSelected() && !boundarySelection;
if (i % 2 == 1) {
enabled = !enabled;
}
if (TL_HELPERS[i].isRendered(context, component)) {
//proper assumption about helpers ordering
encodeControlFacet(context, component, TL_HELPERS[i], clientId, writer, enabled,
"rich-list-shuttle-button", " rich-shuttle-control");
}
}
}
private boolean isEmpty(String s) {
return s == null || s.length() == 0;
}
public void doDecode(FacesContext context, UIComponent component) {
UIListShuttle listShuttle = (UIListShuttle) component;
String clientId = listShuttle.getBaseClientId(context);
ExternalContext externalContext = context.getExternalContext();
Map requestParameterMap = externalContext
.getRequestParameterMap();
if (requestParameterMap.containsKey(clientId)) {
Set sourceSelection = new HashSet();
Set targetSelection = new HashSet();
Object activeItem = null;
String[] strings = (String[]) externalContext.getRequestParameterValuesMap().get(clientId);
Map map = new LinkedHashMap();
boolean facadeSource = true;
Converter converter = getConverter(context, listShuttle);
for (int i = 0; i < strings.length; i++) {
String string = strings[i];
if (":".equals(string)) {
facadeSource = false;
continue;
}
int idx = string.indexOf(':');
Object value = converter.getAsObject(context, listShuttle, string.substring(idx + 1));
String substring = string.substring(0, idx);
idx = 0;
boolean source = true;
boolean selected = false;
if (substring.charAt(idx) == 's') {
(facadeSource ? sourceSelection : targetSelection).add(value);
idx++;
}
if (substring.charAt(idx) == 'a') {
activeItem = value;
idx++;
}
if (substring.charAt(idx) == 't') {
source = false;
idx++;
}
substring = substring.substring(idx);
Object key = new ListShuttleRowKey(new Integer(substring), source, facadeSource);
map.put(key, value);
}
listShuttle.setSubmittedStrings(map, sourceSelection, targetSelection, activeItem);
}
}
public String getCaptionDisplay(FacesContext context, UIComponent component) {
UIListShuttle shuttle = (UIListShuttle)component;
if ((shuttle.getSourceCaptionLabel() != null && !"".equals(shuttle.getSourceCaptionLabel())) ||
(shuttle.getTargetCaptionLabel() != null && !"".equals(shuttle.getTargetCaptionLabel())) ||
(shuttle.getFacet("sourceCaption") != null && shuttle.getFacet("sourceCaption").isRendered()) ||
(shuttle.getFacet("targetCaption") != null && shuttle.getFacet("targetCaption").isRendered())) {
return "";
}
return "display: none;";
}
}