com.liferay.taglib.ui.SectionTag.java Source code

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Here is the source code for com.liferay.taglib.ui.SectionTag.java

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/**
 * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
 *
 * This library 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 library 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.
 */

package com.liferay.taglib.ui;

import com.liferay.portal.kernel.util.JavaConstants;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.taglib.util.IncludeTag;

import javax.portlet.PortletResponse;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;

/**
 * @author Brian Wing Shun Chan
 */
public class SectionTag extends IncludeTag {

    @Override
    public int doStartTag() throws JspException {
        try {
            _tabsTag = (TabsTag) findAncestorWithClass(this, TabsTag.class);

            if (_tabsTag == null) {
                throw new JspException();
            }

            HttpServletRequest request = (HttpServletRequest) pageContext.getRequest();

            PortletResponse portletResponse = (PortletResponse) request
                    .getAttribute(JavaConstants.JAVAX_PORTLET_RESPONSE);

            String namespace = StringPool.BLANK;

            if (portletResponse != null) {
                namespace = portletResponse.getNamespace();
            }

            String sectionParam = _tabsTag.getParam();
            String sectionName = _tabsTag.getSectionName();
            _sectionSelected = Boolean.valueOf(_tabsTag.getSectionSelected());
            String sectionScroll = namespace + sectionParam + "TabsScroll";
            String sectionRedirectParams = "&scroll=" + sectionScroll + "&" + sectionParam + "=" + sectionName;

            _tabsTag.incrementSection();

            request.setAttribute("liferay-ui:section:param", sectionParam);
            request.setAttribute("liferay-ui:section:name", sectionName);
            request.setAttribute("liferay-ui:section:selected", _sectionSelected);
            request.setAttribute("liferay-ui:section:scroll", sectionScroll);

            pageContext.setAttribute("sectionSelected", _sectionSelected);
            pageContext.setAttribute("sectionParam", sectionParam);
            pageContext.setAttribute("sectionName", sectionName);
            pageContext.setAttribute("sectionScroll", sectionScroll);
            pageContext.setAttribute("sectionRedirectParams", sectionRedirectParams);

            include(getStartPage());

            if (!_tabsTag.isRefresh() || _sectionSelected.booleanValue()) {
                return EVAL_BODY_INCLUDE;
            } else {
                return EVAL_PAGE;
            }
        } catch (Exception e) {
            throw new JspException(e);
        }
    }

    @Override
    protected String getEndPage() {
        return _END_PAGE;
    }

    @Override
    protected String getStartPage() {
        return _START_PAGE;
    }

    @Override
    protected int processEndTag() throws Exception {
        JspWriter jspWriter = pageContext.getOut();

        jspWriter.write("</div>");

        return EVAL_PAGE;
    }

    private static final String _END_PAGE = "/html/taglib/ui/section/end.jsp";

    private static final String _START_PAGE = "/html/taglib/ui/section/start.jsp";

    private TabsTag _tabsTag = null;
    private Boolean _sectionSelected = Boolean.FALSE;

}