Java tutorial
/* This file belongs to the Servoy development and deployment environment, Copyright (C) 1997-2010 Servoy BV This program is free software; you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program 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 Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program; if not, see http://www.gnu.org/licenses or write to the Free Software Foundation,Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 */ package com.servoy.j2db.server.headlessclient.dataui; import org.apache.wicket.AbortException; import org.apache.wicket.Component; import org.apache.wicket.MarkupContainer; import org.apache.wicket.Page; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.ajax.markup.html.navigation.paging.AjaxPagingNavigation; import org.apache.wicket.ajax.markup.html.navigation.paging.AjaxPagingNavigationIncrementLink; import org.apache.wicket.ajax.markup.html.navigation.paging.AjaxPagingNavigationLink; import org.apache.wicket.ajax.markup.html.navigation.paging.AjaxPagingNavigator; import org.apache.wicket.markup.html.link.Link; import org.apache.wicket.markup.html.navigation.paging.IPageable; import org.apache.wicket.markup.html.navigation.paging.IPagingLabelProvider; import org.apache.wicket.markup.html.navigation.paging.PagingNavigation; import org.apache.wicket.markup.repeater.AbstractRepeater; import com.servoy.j2db.server.headlessclient.TabIndexHelper; /** * The ajax enabled {@link PagingNavigation} for the {@link WebCellBasedView} * * @author jcompagner */ public class ServoyAjaxPagingNavigator extends AjaxPagingNavigator implements ISupportWebTabSeq { private static final long serialVersionUID = 1L; private int tabIndex; /** * @param id * @param pageable */ public ServoyAjaxPagingNavigator(String id, IPageable pageable) { super(id, pageable); } public void setTabSequenceIndex(int i) { this.tabIndex = i; } /** * @see wicket.ajax.markup.html.navigation.paging.AjaxPagingNavigator#newPagingNavigationIncrementLink(java.lang.String, wicket.markup.html.navigation.paging.IPageable, int) */ @Override protected Link newPagingNavigationIncrementLink(String id, IPageable pageable, int increment) { Link rez = new AjaxPagingNavigationIncrementLink(id, pageable, increment) { private static final long serialVersionUID = 1L; /** * @see wicket.ajax.markup.html.navigation.paging.AjaxPagingNavigationIncrementLink#onClick(wicket.ajax.AjaxRequestTarget) */ @Override public void onClick(AjaxRequestTarget target) { super.onClick(target); Page page = findPage(); if (page != null) { WebEventExecutor.generateResponse(target, page); } else throw new AbortException(); } }; TabIndexHelper.setUpTabIndexAttributeModifier(rez, tabIndex); return rez; } /** * @see org.apache.wicket.ajax.markup.html.navigation.paging.AjaxPagingNavigator#newPagingNavigationLink(java.lang.String, org.apache.wicket.markup.html.navigation.paging.IPageable, int) */ @Override protected Link newPagingNavigationLink(String id, IPageable pageable, int pageNumber) { Link rez = new ServoyAjaxPagingNavigationLink(id, pageable, pageNumber); TabIndexHelper.setUpTabIndexAttributeModifier(rez, tabIndex); return rez; } /** * @see wicket.ajax.markup.html.navigation.paging.AjaxPagingNavigator#newNavigation(wicket.markup.html.navigation.paging.IPageable, wicket.markup.html.navigation.paging.IPagingLabelProvider) */ @Override protected PagingNavigation newNavigation(IPageable pageable, IPagingLabelProvider labelProvider) { return new AjaxPagingNavigation("navigation", pageable, labelProvider) { private static final long serialVersionUID = 1L; /** * @see wicket.ajax.markup.html.navigation.paging.AjaxPagingNavigation#newPagingNavigationLink(java.lang.String, wicket.markup.html.navigation.paging.IPageable, int) */ @Override protected Link newPagingNavigationLink(String id, IPageable pageable, int pageIndex) { Link rez = new ServoyAjaxPagingNavigationLink(id, pageable, pageIndex); TabIndexHelper.setUpTabIndexAttributeModifier(rez, tabIndex); return rez; } }; } /** * @author jcompagner * */ private final class ServoyAjaxPagingNavigationLink extends AjaxPagingNavigationLink { private static final long serialVersionUID = 1L; /** * @param id * @param pageable * @param pageNumber */ private ServoyAjaxPagingNavigationLink(String id, IPageable pageable, int pageNumber) { super(id, pageable, pageNumber); } /** * @see wicket.ajax.markup.html.navigation.paging.AjaxPagingNavigationLink#onClick(wicket.ajax.AjaxRequestTarget) */ @Override public void onClick(AjaxRequestTarget target) { super.onClick(target); Page page = findPage(); if (page != null) { WebEventExecutor.generateResponse(target, page); } else throw new AbortException(); } } @Override protected void onAjaxEvent(AjaxRequestTarget target) { // update the container (parent) of the pageable, this assumes that // the pageable is a component, and that it is a child of a web // markup container. Component container = ((Component) getPageable()); // no need for a nullcheck as there is bound to be a non-repeater // somewhere higher in the hierarchy while (container instanceof AbstractRepeater) { container = container.getParent(); } Component pageableComp = container; while (!(container instanceof WebCellBasedView)) { container = container.getParent(); } target.addComponent(container != null ? container : pageableComp); // in case the navigator is not contained by the container, we have // to add it to the response if (((MarkupContainer) container).contains(this, true) == false) { target.addComponent(this); } } }