org.primefaces.component.chips.ChipsRenderer Maven / Gradle / Ivy

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PrimeFaces is one of the most popular UI libraries in Java EE Ecosystem and widely used by software companies, world renowned brands, banks, financial institutions, insurance companies, universities and more.

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/**
 * Copyright 2009-2018 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 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 {

    @Override
    public void decode(FacesContext context, UIComponent component) {
        Chips chips = (Chips) component;
        String clientId = chips.getClientId(context);

        if (chips.isDisabled() || chips.isReadonly()) {
            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 (!isValueBlank(inputValue)) {
            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 inputStyle = chips.getInputStyle();
        String inputStyleClass = chips.getInputStyleClass();

        String listClass = disabled ? Chips.CONTAINER_CLASS + " ui-state-disabled" : Chips.CONTAINER_CLASS;
        listClass = listClass + " " + inputStyleClass;
        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 (inputStyle != null) {
            writer.writeAttribute("style", inputStyle, null);
        }

        if (values != null && !values.isEmpty()) {
            Converter converter = ComponentUtils.getConverter(context, chips);

            for (Iterator