001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.taglib.util;
016    
017    import com.liferay.portal.kernel.servlet.taglib.BaseBodyTagSupport;
018    import com.liferay.portal.kernel.util.ParamUtil;
019    import com.liferay.portal.kernel.util.Validator;
020    import com.liferay.portal.kernel.util.WebKeys;
021    import com.liferay.portal.theme.ThemeDisplay;
022    
023    import javax.servlet.http.HttpServletRequest;
024    import javax.servlet.jsp.tagext.BodyTag;
025    
026    /**
027     * @author Eduardo Lundgren
028     */
029    public class PositionTagSupport extends BaseBodyTagSupport implements BodyTag {
030    
031            public String getPosition() {
032                    return getPositionValue();
033            }
034    
035            public boolean isPositionAuto() {
036                    String position = getPosition();
037    
038                    if (position.equals(_POSITION_AUTO)) {
039                            return true;
040                    }
041                    else {
042                            return false;
043                    }
044            }
045    
046            public boolean isPositionInLine() {
047                    String position = getPosition();
048    
049                    if (position.equals(_POSITION_INLINE)) {
050                            return true;
051                    }
052                    else {
053                            return false;
054                    }
055            }
056    
057            public void setPosition(String position) {
058                    _position = position;
059            }
060    
061            protected void cleanUp() {
062                    _position = null;
063            }
064    
065            protected String getPositionValue() {
066                    HttpServletRequest request =
067                            (HttpServletRequest)pageContext.getRequest();
068    
069                    String position = _position;
070    
071                    String fragmentId = ParamUtil.getString(request, "p_f_id");
072    
073                    if (Validator.isNotNull(fragmentId)) {
074                            position = _POSITION_INLINE;
075                    }
076    
077                    if (Validator.isNull(position)) {
078                            ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(
079                                    WebKeys.THEME_DISPLAY);
080    
081                            if (themeDisplay.isStateExclusive() || themeDisplay.isIsolated()) {
082                                    position = _POSITION_INLINE;
083                            }
084                            else {
085                                    position = _POSITION_AUTO;
086                            }
087                    }
088    
089                    return position;
090            }
091    
092            private static final String _POSITION_AUTO = "auto";
093    
094            private static final String _POSITION_INLINE = "inline";
095    
096            private String _position;
097    
098    }