001    /**
002     * Copyright (c) 2000-present 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.portlet.imagegallerydisplay.util;
016    
017    import com.liferay.portal.kernel.portlet.LiferayWindowState;
018    import com.liferay.portal.kernel.repository.model.Folder;
019    import com.liferay.portal.kernel.util.GetterUtil;
020    import com.liferay.portal.kernel.util.ParamUtil;
021    import com.liferay.portal.kernel.util.WebKeys;
022    import com.liferay.portal.theme.ThemeDisplay;
023    import com.liferay.portal.util.PortalUtil;
024    import com.liferay.portlet.PortletPreferencesFactoryUtil;
025    import com.liferay.portlet.documentlibrary.model.DLFolderConstants;
026    import com.liferay.portlet.documentlibrary.service.DLAppLocalServiceUtil;
027    
028    import java.util.Collections;
029    import java.util.List;
030    
031    import javax.portlet.PortletPreferences;
032    import javax.portlet.PortletURL;
033    import javax.portlet.RenderResponse;
034    
035    import javax.servlet.http.HttpServletRequest;
036    
037    /**
038     * @author Brian Wing Shun Chan
039     */
040    public class IGUtil {
041    
042            public static void addPortletBreadcrumbEntries(
043                            Folder folder, HttpServletRequest request,
044                            RenderResponse renderResponse)
045                    throws Exception {
046    
047                    String mvcRenderCommandName = ParamUtil.getString(
048                            request, "mvcRenderCommandName");
049    
050                    PortletURL portletURL = renderResponse.createRenderURL();
051    
052                    if (mvcRenderCommandName.equals("/document_library/select_folder")) {
053                            ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(
054                                    WebKeys.THEME_DISPLAY);
055    
056                            portletURL.setParameter(
057                                    "mvcRenderCommandName", mvcRenderCommandName);
058                            portletURL.setWindowState(LiferayWindowState.POP_UP);
059    
060                            PortalUtil.addPortletBreadcrumbEntry(
061                                    request, themeDisplay.translate("home"), portletURL.toString());
062                    }
063                    else {
064                            portletURL.setParameter(
065                                    "mvcRenderCommandName", "/image_gallery_display/view");
066                    }
067    
068                    long defaultFolderId = getDefaultFolderId(request);
069    
070                    List<Folder> ancestorFolders = Collections.emptyList();
071    
072                    if ((folder != null) && (folder.getFolderId() != defaultFolderId)) {
073                            ancestorFolders = folder.getAncestors();
074    
075                            int indexOfRootFolder = -1;
076    
077                            for (int i = 0; i < ancestorFolders.size(); i++) {
078                                    Folder ancestorFolder = ancestorFolders.get(i);
079    
080                                    if (defaultFolderId == ancestorFolder.getFolderId()) {
081                                            indexOfRootFolder = i;
082                                    }
083                            }
084    
085                            if (indexOfRootFolder > -1) {
086                                    ancestorFolders = ancestorFolders.subList(0, indexOfRootFolder);
087                            }
088                    }
089    
090                    Collections.reverse(ancestorFolders);
091    
092                    for (Folder ancestorFolder : ancestorFolders) {
093                            portletURL.setParameter(
094                                    "folderId", String.valueOf(ancestorFolder.getFolderId()));
095    
096                            PortalUtil.addPortletBreadcrumbEntry(
097                                    request, ancestorFolder.getName(), portletURL.toString());
098                    }
099    
100                    portletURL.setParameter(
101                            "folderId", String.valueOf(folder.getFolderId()));
102    
103                    PortalUtil.addPortletBreadcrumbEntry(
104                            request, folder.getName(), portletURL.toString());
105            }
106    
107            public static void addPortletBreadcrumbEntries(
108                            long folderId, HttpServletRequest request,
109                            RenderResponse renderResponse)
110                    throws Exception {
111    
112                    if (folderId == DLFolderConstants.DEFAULT_PARENT_FOLDER_ID) {
113                            return;
114                    }
115    
116                    Folder folder = DLAppLocalServiceUtil.getFolder(folderId);
117    
118                    addPortletBreadcrumbEntries(folder, request, renderResponse);
119            }
120    
121            protected static long getDefaultFolderId(HttpServletRequest request)
122                    throws Exception {
123    
124                    PortletPreferences portletPreferences =
125                            PortletPreferencesFactoryUtil.getPortletPreferences(
126                                    request, PortalUtil.getPortletId(request));
127    
128                    return GetterUtil.getLong(
129                            portletPreferences.getValue(
130                                    "rootFolderId",
131                                    String.valueOf(DLFolderConstants.DEFAULT_PARENT_FOLDER_ID)));
132            }
133    
134    }