| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * 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. |
| */ |
| |
| package org.apache.oodt.cas.webcomponents.filemgr.browser.pagination; |
| |
| //JDK imports |
| import java.io.Serializable; |
| import java.util.List; |
| import java.util.Vector; |
| |
| //OODT imports |
| import org.apache.oodt.cas.filemgr.structs.ProductPage; |
| import org.apache.oodt.cas.webcomponents.filemgr.browser.types.TypeBrowser; |
| |
| //Wicket imports |
| import org.apache.wicket.PageParameters; |
| import org.apache.wicket.behavior.SimpleAttributeModifier; |
| import org.apache.wicket.markup.html.WebPage; |
| import org.apache.wicket.markup.html.basic.Label; |
| import org.apache.wicket.markup.html.link.BookmarkablePageLink; |
| import org.apache.wicket.markup.html.list.ListItem; |
| import org.apache.wicket.markup.html.list.ListView; |
| import org.apache.wicket.markup.html.panel.Panel; |
| |
| /** |
| * |
| * A paginator component that expands to a +/- 5 page |
| * window to paginate a {@link ProductPage}. |
| * |
| * @author mattmann |
| * @version $Revision$ |
| * |
| */ |
| public class ProductPaginator extends Panel { |
| |
| private static final long serialVersionUID = 6277536371513974225L; |
| |
| private ProductPage page; |
| |
| private String productTypeName; |
| |
| /** |
| * @param id |
| */ |
| public ProductPaginator(String id, ProductPage page, |
| final String productTypeName, final Class<? extends WebPage> typeBrowserPage) { |
| super(id); |
| this.page = page; |
| this.productTypeName = productTypeName; |
| |
| if (this.page != null && this.page.getPageProducts() != null |
| && this.page.getPageProducts().size() > 0) { |
| |
| int numPages = this.page.getTotalPages(); |
| int currPage = this.page.getPageNum(); |
| int windowSize = 10; |
| |
| int startPage = Math.max(1, (currPage - (windowSize / 2))); |
| int endPage = Math.min(currPage + (windowSize / 2), numPages); |
| List<PageNumDisplay> pnums = this.getPageNumDisplay(startPage, endPage, |
| currPage); |
| |
| add(new ListView<PageNumDisplay>("page_repeater", pnums) { |
| |
| @Override |
| protected void populateItem(ListItem<PageNumDisplay> item) { |
| PageParameters params = new PageParameters(); |
| params.add("name", productTypeName); |
| params.put("pageNum", item.getModelObject().getNum()); |
| BookmarkablePageLink pageLink = new BookmarkablePageLink("pageLink", |
| typeBrowserPage, params); |
| pageLink.add(new Label("pageNum", String.valueOf(item |
| .getModelObject().getNum()))); |
| pageLink.add(new SimpleAttributeModifier("class", item |
| .getModelObject().isCurrentPage() ? "selected" : "")); |
| item.add(pageLink); |
| } |
| }); |
| add(new Label("nothing_found").setVisible(false)); |
| } else { |
| add(new Label("page_repeater").setVisible(false)); |
| add(new Label("pageLink").setVisible(false)); |
| add(new Label("pageNum").setVisible(false)); |
| add(new Label("nothing_found").setVisible(true)); |
| } |
| |
| } |
| |
| private List<PageNumDisplay> getPageNumDisplay(int startPage, int endPage, |
| int currPage) { |
| List<PageNumDisplay> display = new Vector<PageNumDisplay>(); |
| for (int i = startPage; i <= endPage; i++) { |
| display.add(new PageNumDisplay(i == currPage, i)); |
| } |
| |
| return display; |
| } |
| |
| class PageNumDisplay implements Serializable { |
| |
| private static final long serialVersionUID = -4351470774764276644L; |
| |
| private boolean currentPage; |
| |
| private int num; |
| |
| public PageNumDisplay() { |
| this.currentPage = false; |
| this.num = -1; |
| } |
| |
| public PageNumDisplay(boolean currentPage, int num) { |
| this.currentPage = currentPage; |
| this.num = num; |
| } |
| |
| /** |
| * @return the currentPage |
| */ |
| public boolean isCurrentPage() { |
| return currentPage; |
| } |
| |
| /** |
| * @param currentPage |
| * the currentPage to set |
| */ |
| public void setCurrentPage(boolean currentPage) { |
| this.currentPage = currentPage; |
| } |
| |
| /** |
| * @return the num |
| */ |
| public int getNum() { |
| return num; |
| } |
| |
| /** |
| * @param num |
| * the num to set |
| */ |
| public void setNum(int num) { |
| this.num = num; |
| } |
| |
| } |
| |
| } |