| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. The ASF licenses this file to You |
| * under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. For additional information regarding |
| * copyright in this work, please see the NOTICE file in the top level |
| * directory of this distribution. |
| */ |
| |
| package org.apache.roller.weblogger.ui.rendering.pagers; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| import org.apache.roller.weblogger.business.URLStrategy; |
| import org.apache.roller.weblogger.util.URLUtilities; |
| |
| |
| /** |
| * Abstract base for simple pagers. |
| */ |
| public abstract class AbstractPager implements Pager { |
| |
| final URLStrategy urlStrategy; |
| private String url = null; |
| private int page = 0; |
| |
| |
| public AbstractPager(URLStrategy strat, String baseUrl, int pageNum) { |
| |
| this.urlStrategy = strat; |
| this.url = baseUrl; |
| if(pageNum > 0) { |
| this.page = pageNum; |
| } |
| } |
| |
| |
| public String getHomeLink() { |
| return url; |
| } |
| |
| |
| public String getHomeName() { |
| return "Home"; |
| } |
| |
| |
| public String getNextLink() { |
| if(hasMoreItems()) { |
| int nextPage = page + 1; |
| Map params = new HashMap(); |
| params.put("page", ""+nextPage); |
| return createURL(url, params); |
| } |
| return null; |
| } |
| |
| |
| public String getNextName() { |
| if(hasMoreItems()) { |
| return "Next"; |
| } |
| return null; |
| } |
| |
| |
| public String getPrevLink() { |
| if (page > 0) { |
| int prevPage = page - 1; |
| Map params = new HashMap(); |
| params.put("page", ""+prevPage); |
| return createURL(url, params); |
| } |
| return null; |
| } |
| |
| |
| public String getPrevName() { |
| if (page > 0) { |
| return "Previous"; |
| } |
| return null; |
| } |
| |
| |
| public boolean hasMoreItems() { |
| return false; |
| } |
| |
| |
| protected String createURL(String url, Map params) { |
| |
| return url + URLUtilities.getQueryString(params); |
| } |
| |
| |
| public String getUrl() { |
| return url; |
| } |
| |
| public void setUrl(String url) { |
| this.url = url; |
| } |
| |
| public int getPage() { |
| return page; |
| } |
| |
| public void setPage(int page) { |
| this.page = page; |
| } |
| |
| } |