org.primefaces.component.columntoggler.ColumnTogglerRenderer Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of primefaces Show documentation

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.

There is a newer version: 14.0.0-RC2

Show newest version

/**
 * The MIT License
 *
 * Copyright (c) 2009-2019 PrimeTek
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.primefaces.component.columntoggler;

import java.io.IOException;
import java.util.Map;

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;

import org.primefaces.component.datatable.DataTable;
import org.primefaces.component.datatable.TableState;
import org.primefaces.expression.SearchExpressionFacade;
import org.primefaces.renderkit.CoreRenderer;
import org.primefaces.util.WidgetBuilder;

public class ColumnTogglerRenderer extends CoreRenderer {

    @Override
    public void decode(FacesContext context, UIComponent component) {
        ColumnToggler columnToggler = (ColumnToggler) component;
        UIComponent datasource = columnToggler.getDataSourceComponent();

        if (datasource instanceof DataTable) {
            DataTable table = ((DataTable) datasource);
            boolean isMultiViewState = table.isMultiViewState();
            if (isMultiViewState) {
                Map params = context.getExternalContext().getRequestParameterMap();
                String columnTogglerParam = params.get(table.getClientId(context) + "_columnTogglerState");
                TableState ts = table.getTableState(true);
                ts.setTogglableColumnsAsString(columnTogglerParam);
            }
        }

        decodeBehaviors(context, component);
    }

    @Override
    public void encodeEnd(FacesContext context, UIComponent component) throws IOException {
        ColumnToggler columnToggler = (ColumnToggler) component;

        encodeMarkup(context, columnToggler);
        encodeScript(context, columnToggler);
    }

    protected void encodeMarkup(FacesContext context, ColumnToggler columnToggler) throws IOException {
        ResponseWriter writer = context.getResponseWriter();
        String clientId = columnToggler.getClientId(context);

        writer.startElement("div", null);
        writer.writeAttribute("id", clientId, "id");
        writer.endElement("div");
    }

    protected void encodeScript(FacesContext context, ColumnToggler columnToggler) throws IOException {
        WidgetBuilder wb = getWidgetBuilder(context);

        wb.init("ColumnToggler", columnToggler.resolveWidgetVar(), columnToggler.getClientId(context));
        wb.attr("trigger", SearchExpressionFacade.resolveClientIds(context, columnToggler, columnToggler.getTrigger()))
                .attr("datasource", SearchExpressionFacade.resolveClientIds(context, columnToggler, columnToggler.getDatasource()));

        encodeClientBehaviors(context, columnToggler);

        wb.finish();
    }
}