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org.primefaces.component.chips.ChipsRenderer Maven / Gradle / Ivy
/*
* Copyright 2009-2017 PrimeTek.
*
* 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.
*/
package org.primefaces.component.chips;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.logging.Logger;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.convert.Converter;
import javax.faces.convert.ConverterException;
import org.primefaces.renderkit.InputRenderer;
import org.primefaces.util.ArrayUtils;
import org.primefaces.util.ComponentUtils;
import org.primefaces.util.HTML;
import org.primefaces.util.WidgetBuilder;
public class ChipsRenderer extends InputRenderer {
private static final Logger LOG = Logger.getLogger(ChipsRenderer.class.getName());
@Override
public void decode(FacesContext context, UIComponent component) {
Chips chips = (Chips) component;
String clientId = chips.getClientId(context);
if(chips.isDisabled()) {
return;
}
Map params = context.getExternalContext().getRequestParameterMap();
Map paramValues = context.getExternalContext().getRequestParameterValuesMap();
String[] hInputValues = paramValues.get(clientId + "_hinput");
String[] submittedValues = (hInputValues != null) ? hInputValues : new String[]{};
String inputValue = params.get(clientId + "_input");
if(inputValue != null && !inputValue.trim().equals("")) {
submittedValues = ArrayUtils.concat(submittedValues, new String[]{inputValue});
}
if(submittedValues.length > 0) {
chips.setSubmittedValue(submittedValues);
}
else {
chips.setSubmittedValue("");
}
decodeBehaviors(context, chips);
}
@Override
public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
Chips chips = (Chips) component;
encodeMarkup(context, chips);
encodeScript(context, chips);
}
protected void encodeMarkup(FacesContext context, Chips chips) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String clientId = chips.getClientId(context);
String inputId = clientId + "_input";
List values = (List) chips.getValue();
List stringValues = new ArrayList();
boolean disabled = chips.isDisabled();
String title = chips.getTitle();
String style = chips.getStyle();
String styleClass = chips.getStyleClass();
styleClass = styleClass == null ? Chips.STYLE_CLASS : Chips.STYLE_CLASS + " " + styleClass;
String listClass = disabled ? Chips.CONTAINER_CLASS + " ui-state-disabled" : Chips.CONTAINER_CLASS;
listClass = chips.isValid() ? listClass : listClass + " ui-state-error";
writer.startElement("div", null);
writer.writeAttribute("id", clientId, null);
writer.writeAttribute("class", styleClass, null);
if(style != null) {
writer.writeAttribute("style", style, null);
}
if(title != null) {
writer.writeAttribute("title", title, null);
}
writer.startElement("ul", null);
writer.writeAttribute("class", listClass, null);
if(values != null && !values.isEmpty()) {
Converter converter = ComponentUtils.getConverter(context, chips);
for(Iterator it = values.iterator(); it.hasNext();) {
Object value = it.next();
String tokenValue = converter != null ? converter.getAsString(context, chips, value) : String.valueOf(value);
writer.startElement("li", null);
writer.writeAttribute("data-token-value", tokenValue, null);
writer.writeAttribute("class", Chips.TOKEN_DISPLAY_CLASS, null);
writer.startElement("span", null);
writer.writeAttribute("class", Chips.TOKEN_LABEL_CLASS, null);
writer.writeText(String.valueOf(value), null);
writer.endElement("span");
writer.startElement("span", null);
writer.writeAttribute("class", Chips.TOKEN_CLOSE_ICON_CLASS, null);
writer.endElement("span");
writer.endElement("li");
stringValues.add(tokenValue);
}
}
writer.startElement("li", null);
writer.writeAttribute("class", Chips.TOKEN_INPUT_CLASS, null);
writer.startElement("input", null);
writer.writeAttribute("type", "text", null);
writer.writeAttribute("id", inputId, null);
writer.writeAttribute("class", "ui-widget", null);
writer.writeAttribute("name", inputId, null);
writer.writeAttribute("autocomplete", "off", null);
if(disabled) writer.writeAttribute("disabled", "disabled", "disabled");
renderPassThruAttributes(context, chips, HTML.INPUT_TEXT_ATTRS_WITHOUT_EVENTS);
renderDomEvents(context, chips, HTML.INPUT_TEXT_EVENTS);
writer.endElement("input");
writer.endElement("li");
writer.endElement("ul");
encodeHiddenSelect(context, chips, clientId, stringValues);
writer.endElement("div");
}
protected void encodeHiddenSelect(FacesContext context, Chips chips, String clientId, List values) throws IOException {
ResponseWriter writer = context.getResponseWriter();
String id = clientId + "_hinput";
writer.startElement("select", null);
writer.writeAttribute("id", id, null);
writer.writeAttribute("name", id, null);
writer.writeAttribute("multiple", "multiple", null);
writer.writeAttribute("class", "ui-helper-hidden", null);
if(chips.isDisabled()) {
writer.writeAttribute("disabled", "disabled", "disabled");
}
for(String value : values) {
writer.startElement("option", null);
writer.writeAttribute("value", value, null);
writer.writeAttribute("selected", "selected", null);
writer.endElement("option");
}
writer.endElement("select");
}
protected void encodeScript(FacesContext context, Chips chips) throws IOException {
String clientId = chips.getClientId(context);
WidgetBuilder wb = getWidgetBuilder(context);
wb.initWithDomReady("Chips", chips.resolveWidgetVar(), clientId)
.attr("max", chips.getMax(), Integer.MAX_VALUE);
encodeClientBehaviors(context, chips);
wb.finish();
}
@Override
public Object getConvertedValue(FacesContext context, UIComponent component, Object submittedValue) throws ConverterException {
Chips chips = (Chips) component;
if(submittedValue == null || submittedValue.equals("")) {
return null;
}
Converter converter = ComponentUtils.getConverter(context, component);
String[] values = (String[]) submittedValue;
List list = new ArrayList();
for(String value : values) {
if(isValueBlank(value)) {
continue;
}
Object convertedValue = converter != null ? converter.getAsObject(context, chips, value) : value;
if(convertedValue != null) {
list.add(convertedValue);
}
}
return list;
}
}
