Package org.richfaces.sandbox.renderkit.html

Source Code of org.richfaces.sandbox.renderkit.html.TabRenderer

/*
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* Copyright ${year}, Red Hat, Inc. and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.richfaces.sandbox.renderkit.html;

import static org.richfaces.ui.common.HtmlConstants.CLASS_ATTRIBUTE;
import static org.richfaces.ui.common.HtmlConstants.DIV_ELEM;
import static org.richfaces.ui.common.HtmlConstants.ID_ATTRIBUTE;

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

import javax.faces.application.ResourceDependencies;
import javax.faces.application.ResourceDependency;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.event.ActionEvent;

import org.richfaces.cdk.annotations.JsfRenderer;
import org.richfaces.context.ExtendedPartialViewContext;
import org.richfaces.javascript.JSObject;
import org.richfaces.sandbox.component.AbstractTab;
import org.richfaces.sandbox.component.AbstractTabPanel;
import org.richfaces.sandbox.component.AbstractTogglePanelItemInterface;
import org.richfaces.ui.common.ComponentIterators;
import org.richfaces.ui.common.HtmlConstants;

import com.google.common.base.Predicate;

/**
* @author akolonitsky
* @since 2010-08-24
*/
@ResourceDependencies({ @ResourceDependency(library = "org.richfaces", name = "ajax.reslib"),
        @ResourceDependency(library = "org.richfaces", name = "base-component.reslib"),
        @ResourceDependency(name = "richfaces-event.js"),
        @ResourceDependency(library = "org.richfaces", name = "togglePanelItem.js"),
        @ResourceDependency(library = "org.richfaces", name = "tab.js") })
@JsfRenderer(type = "org.richfaces.sandbox.TabRenderer", family = AbstractTab.COMPONENT_FAMILY)
public class TabRenderer extends TogglePanelItemRenderer {
    @Override
    protected void doDecode(FacesContext context, UIComponent component) {

        Map<String, String> requestMap = context.getExternalContext().getRequestParameterMap();

        AbstractTab tab = (AbstractTab) component;
        String compClientId = component.getClientId(context);
        if (requestMap.get(compClientId) != null) {
            AbstractTabPanel parentTabPanel = getParentTabPanel(tab);

            if (parentTabPanel.isImmediate()) {
                tab.setImmediate(true);
            }
            new ActionEvent(tab).queue();

            if (context.getPartialViewContext().isPartialRequest()) {
                context.getPartialViewContext().getRenderIds().add(component.getClientId(context));
                addOnCompleteParam(context, tab.getName(), tab.getTabPanel().getClientId(context));
            }
        }
    }

    protected static void addOnCompleteParam(FacesContext context, String newValue, String panelId) {
        StringBuilder onComplete = new StringBuilder();
        onComplete.append("RichFaces.$('").append(panelId).append("').onCompleteHandler('").append(newValue).append("');");

        ExtendedPartialViewContext.getInstance(context).appendOncomplete(onComplete.toString());
    }

    @Override
    protected void doEncodeItemBegin(ResponseWriter writer, FacesContext context, UIComponent component) throws IOException {

        super.doEncodeItemBegin(writer, context, component);
        encodeContentBegin(context, component, writer);
    }

    @Override
    protected String getStyleClass(UIComponent component) {
        return concatClasses("rf-tab", attributeAsString(component, "styleClass"));
    }

    @Override
    protected void doEncodeChildren(ResponseWriter writer, FacesContext context, UIComponent component) throws IOException {

        AbstractTab tab = (AbstractTab) component;

        if (tab.shouldProcess() && !tab.isDisabled()) {
            super.doEncodeChildren(writer, context, tab);
        }
    }

    @Override
    protected void doEncodeItemEnd(ResponseWriter writer, FacesContext context, UIComponent component) throws IOException {
        encodeContentEnd(component, writer);
        super.doEncodeItemEnd(writer, context, component);
    }

    @Override
    protected void doEncodeEnd(ResponseWriter writer, FacesContext context, UIComponent component) throws IOException {
        if (((AbstractTogglePanelItemInterface) component).shouldProcess()) {
            doEncodeItemEnd(writer, context, component);
        } else {
            encodePlaceHolder(context, component);
        }
    }

    @Override
    protected void writeJavaScript(ResponseWriter writer, FacesContext context, UIComponent component) throws IOException {
        Object script = getScriptObject(context, component);
        if (script == null) {
            return;
        }

        writer.startElement(HtmlConstants.SCRIPT_ELEM, component);
        writer.writeAttribute(HtmlConstants.TYPE_ATTR, "text/javascript", "type");
        writer.writeText(script, null);
        writer.endElement(HtmlConstants.SCRIPT_ELEM);
    }

    private void encodeContentBegin(FacesContext context, UIComponent component, ResponseWriter writer) throws IOException {
        writer.startElement(DIV_ELEM, component);
        writer.writeAttribute(CLASS_ATTRIBUTE, concatClasses("rf-tab-cnt", attributeAsString(component, "contentClass")), null);
        writer.writeAttribute(ID_ATTRIBUTE, component.getClientId(context) + ":content", null);
    }

    private void encodeContentEnd(UIComponent component, ResponseWriter responseWriter) throws IOException {
        responseWriter.endElement(DIV_ELEM);
    }

    @Override
    protected JSObject getScriptObject(FacesContext context, UIComponent component) {
        return new JSObject("RichFaces.ui.Tab", component.getClientId(context), getScriptObjectOptions(context, component));
    }

    @Override
    protected Map<String, Object> getScriptObjectOptions(FacesContext context, UIComponent component) {
        Map<String, Object> res = super.getScriptObjectOptions(context, component);
        res.put("disabled", ((AbstractTab) component).isDisabled());
        res.put("enter", ((AbstractTogglePanelItemInterface) component).getOnenter());
        res.put("leave", ((AbstractTogglePanelItemInterface) component).getOnleave());

        return res;
    }

    @Override
    protected Class<? extends UIComponent> getComponentClass() {
        return AbstractTab.class;
    }

    private static AbstractTabPanel getParentTabPanel(AbstractTab menuItem) {
        return (AbstractTabPanel) ComponentIterators.getParent(menuItem, new Predicate<UIComponent>() {
            public boolean apply(UIComponent component) {
                return component instanceof AbstractTabPanel;
            }
        });
    }
}
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