com.liferay.taglib.aui.ATag.java Source code

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Here is the source code for com.liferay.taglib.aui.ATag.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.aui;

import com.liferay.portal.kernel.language.LanguageUtil;
import com.liferay.portal.kernel.servlet.taglib.CustomAttributes;
import com.liferay.portal.kernel.util.GetterUtil;
import com.liferay.portal.kernel.util.HtmlUtil;
import com.liferay.portal.kernel.util.JavaConstants;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.taglib.aui.base.BaseATag;

import java.util.Map;

import javax.portlet.PortletResponse;

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

/**
 * @author Julio Camarero
 * @author Jorge Ferrer
 * @author Brian Wing Shun Chan
 * @author Shuyang Zhou
 */
public class ATag extends BaseATag {

    protected boolean isOpensNewWindow() {
        String target = getTarget();

        if ((target != null) && (target.equals("_blank") || target.equals("_new"))) {

            return true;
        } else {
            return false;
        }
    }

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

        if (Validator.isNotNull(getHref())) {
            if (isOpensNewWindow()) {
                jspWriter.write("<span class=\"opens-new-window-accessible\">");
                jspWriter.write(LanguageUtil.get(pageContext, "opens-new-window"));
                jspWriter.write("</span>");
            }

            jspWriter.write("</a>");
        } else {
            jspWriter.write("</span>");
        }

        return EVAL_PAGE;
    }

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

        String href = getHref();
        String cssClass = getCssClass();
        String id = getId();
        String namespace = _getNamespace();
        String lang = getLang();
        String onClick = getOnClick();
        String target = getTarget();
        String title = getTitle();
        Map<String, Object> data = getData();
        String label = getLabel();

        if (Validator.isNotNull(href)) {
            jspWriter.write("<a ");

            if (Validator.isNotNull(cssClass)) {
                jspWriter.write("class=\"");
                jspWriter.write(cssClass);
                jspWriter.write("\" ");
            }

            jspWriter.write("href=\"");
            jspWriter.write(HtmlUtil.escape(href));
            jspWriter.write("\" ");

            if (Validator.isNotNull(id)) {
                jspWriter.write("id=\"");
                jspWriter.write(namespace);
                jspWriter.write(id);
                jspWriter.write("\" ");
            }

            if (Validator.isNotNull(lang)) {
                jspWriter.write("lang=\"");
                jspWriter.write(lang);
                jspWriter.write("\" ");
            }

            if (Validator.isNotNull(onClick)) {
                jspWriter.write("onClick=\"");
                jspWriter.write(onClick);
                jspWriter.write("\" ");
            }

            if (Validator.isNotNull(target)) {
                jspWriter.write("target=\"");
                jspWriter.write(target);
                jspWriter.write("\" ");
            }

            if (Validator.isNotNull(title) || isOpensNewWindow()) {
                jspWriter.write("title=\"");

                if (Validator.isNotNull(title)) {
                    jspWriter.write(LanguageUtil.get(pageContext, title));
                }

                if (isOpensNewWindow()) {
                    jspWriter.write(LanguageUtil.get(pageContext, "opens-new-window"));
                }

                jspWriter.write("\" ");
            }

            CustomAttributes customAttributes = getCustomAttributes();

            if (customAttributes != null) {
                jspWriter.write(customAttributes.toString());
            }

            if (data != null) {
                jspWriter.write(AUIUtil.buildData(data));
            }

            writeDynamicAttributes(jspWriter);

            jspWriter.write(">");

            if (Validator.isNotNull(label)) {
                jspWriter.write(LanguageUtil.get(pageContext, label));
            }
        } else {
            jspWriter.write("<span ");

            if (Validator.isNotNull(cssClass)) {
                jspWriter.write("class=\"");
                jspWriter.write(cssClass);
                jspWriter.write("\" ");
            }

            if (Validator.isNotNull(id)) {
                jspWriter.write("id=\"");
                jspWriter.write(namespace);
                jspWriter.write(id);
                jspWriter.write("\" ");
            }

            if (Validator.isNotNull(lang)) {
                jspWriter.write("lang=\"");
                jspWriter.write(lang);
                jspWriter.write("\" ");
            }

            if (Validator.isNotNull(title) || isOpensNewWindow()) {
                jspWriter.write("title=\"");

                if (Validator.isNotNull(title)) {
                    jspWriter.write(LanguageUtil.get(pageContext, title));
                }

                if (isOpensNewWindow()) {
                    jspWriter.write(LanguageUtil.get(pageContext, "opens-new-window"));
                }

                jspWriter.write("\" ");
            }

            CustomAttributes customAttributes = getCustomAttributes();

            if (customAttributes != null) {
                jspWriter.write(customAttributes.toString());
            }

            if (data != null) {
                jspWriter.write(AUIUtil.buildData(data));
            }

            writeDynamicAttributes(jspWriter);

            jspWriter.write(">");

            if (Validator.isNotNull(label)) {
                jspWriter.write(LanguageUtil.get(pageContext, label));
            }
        }

        return EVAL_BODY_INCLUDE;
    }

    private String _getNamespace() {
        HttpServletRequest request = (HttpServletRequest) pageContext.getRequest();

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

        String namespace = StringPool.BLANK;

        boolean useNamespace = GetterUtil.getBoolean((String) request.getAttribute("aui:form:useNamespace"), true);

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

        return namespace;
    }

}