Java tutorial
/** This package is part of the application VIF. Copyright (C) 2011-2014, Benno Luthiger This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ package org.hip.vif.admin.member.ui; import org.hip.vif.admin.member.Activator; import org.hip.vif.admin.member.data.MemberContainer; import org.hip.vif.admin.member.tasks.AbstractMemberSearchTask; import org.hip.vif.admin.member.tasks.MemberShowListTask; import org.hip.vif.web.util.VIFViewHelper; import org.ripla.interfaces.IMessages; import org.ripla.web.util.RiplaViewHelper; import com.vaadin.data.Container.Filter; import com.vaadin.data.Item; import com.vaadin.data.Property; import com.vaadin.shared.ui.label.ContentMode; import com.vaadin.ui.Button; import com.vaadin.ui.Button.ClickEvent; import com.vaadin.ui.CustomComponent; import com.vaadin.ui.Label; import com.vaadin.ui.Notification; import com.vaadin.ui.Notification.Type; import com.vaadin.ui.Table; import com.vaadin.ui.VerticalLayout; /** View to show the list of members. * * @author Luthiger Created: 17.10.2011 */ @SuppressWarnings("serial") public class MemberListView extends CustomComponent { private static final String SUBTITLE_WARNING = "<div class=\"vif-warning\">%s</div>"; //$NON-NLS-1$ private static final int PAGE_LENGTH = 15; private boolean confirmationMode = false; /** Constructor * * @param inMembers {@link MemberContainer} * @param inIsDeletable boolean <code>true</code> if the member entries are deletable and, therefore, a delete * button is displayed * @param inTask {@link MemberShowListTask} */ public MemberListView(final MemberContainer inMembers, final boolean inIsDeletable, final AbstractMemberSearchTask inTask) { final VerticalLayout lLayout = new VerticalLayout(); setCompositionRoot(lLayout); final IMessages lMessages = Activator.getMessages(); lLayout.setStyleName("vif-view"); //$NON-NLS-1$ lLayout.addComponent(new Label(String.format(VIFViewHelper.TMPL_TITLE, "vif-pagetitle", //$NON-NLS-1$ lMessages.getMessage("ui.member.list.title.page")), ContentMode.HTML)); //$NON-NLS-1$ final Label lSubtitle = new Label( String.format(SUBTITLE_WARNING, lMessages.getMessage("ui.member.delete.warning")), //$NON-NLS-1$ ContentMode.HTML); lSubtitle.setVisible(false); lLayout.addComponent(lSubtitle); final Table lTable = new Table(); lTable.setWidth("100%"); //$NON-NLS-1$ lTable.setContainerDataSource(inMembers); if (inIsDeletable) { // generate check box lTable.addGeneratedColumn(MemberContainer.MEMBER_CHECK, new VIFViewHelper.CheckBoxColumnGenerator(new VIFViewHelper.IConfirmationModeChecker() { @Override public boolean inConfirmationMode() { return confirmationMode; } })); lTable.setVisibleColumns(VIFViewHelper.getModifiedArray(MemberContainer.MEMBER_CHECK, MemberContainer.NATURAL_COL_ORDER)); lTable.setColumnHeaders(VIFViewHelper.getColumnHeaders( VIFViewHelper.getModifiedArray("", (Object[]) MemberContainer.COL_HEADERS), lMessages)); //$NON-NLS-1$ } else { lTable.setVisibleColumns(MemberContainer.NATURAL_COL_ORDER); lTable.setColumnHeaders(VIFViewHelper.getColumnHeaders(MemberContainer.COL_HEADERS, lMessages)); } lTable.setColumnCollapsingAllowed(true); lTable.setColumnReorderingAllowed(true); lTable.setSelectable(true); lTable.setImmediate(true); lTable.setPageLength(inMembers.size() > PAGE_LENGTH ? PAGE_LENGTH : 0); lTable.setColumnExpandRatio(MemberContainer.MEMBER_NAME, 1); lTable.setColumnWidth(MemberContainer.MEMBER_STREET, 200); lTable.setColumnWidth(MemberContainer.MEMBER_PLACE, 200); lTable.setColumnWidth(MemberContainer.MEMBER_MAIL, 200); lTable.addValueChangeListener(inTask); lLayout.addComponent(lTable); if (inIsDeletable) { lLayout.addComponent(RiplaViewHelper.createSpacer()); final Button lDelete = new Button(lMessages.getMessage("ui.member.button.delete")); //$NON-NLS-1$ lDelete.addClickListener(new Button.ClickListener() { @Override public void buttonClick(final ClickEvent inEvent) { if (confirmationMode) { if (!inTask.deleteMember()) { Notification.show(lMessages.getMessage("errmsg.process.delete"), Type.WARNING_MESSAGE); //$NON-NLS-1$ } } else { if (VIFViewHelper.processAction(inMembers)) { confirmationMode = true; inMembers.addContainerFilter(new SelectedFilter()); lSubtitle.setVisible(true); lTable.setSelectable(false); lTable.setPageLength(0); } } } }); lLayout.addComponent(lDelete); } } // --- private classes --- private static class SelectedFilter implements Filter { @Override public boolean passesFilter(final Object inItemId, final Item inItem) throws UnsupportedOperationException { final Property<?> lCheckBox = inItem.getItemProperty(MemberContainer.MEMBER_CHECKED); return (Boolean) lCheckBox.getValue(); } @Override public boolean appliesToProperty(final Object inPropertyId) { return MemberContainer.MEMBER_CHECKED.equals(inPropertyId); } } }