Java tutorial
/* * 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 net.rrm.ehour.ui.common.panel.entryselector; import net.rrm.ehour.exception.ObjectNotFoundException; import net.rrm.ehour.ui.common.border.GreyBlueRoundedBorder; import net.rrm.ehour.ui.common.component.XlsxLink; import net.rrm.ehour.ui.common.decorator.LoadingSpinnerDecorator; import net.rrm.ehour.ui.common.model.DateModel; import net.rrm.ehour.ui.common.panel.AbstractBasePanel; import net.rrm.ehour.ui.common.report.excel.ExcelWorkbook; import net.rrm.ehour.ui.common.report.excel.IWriteBytes; import net.rrm.ehour.ui.common.session.EhourWebSession; import net.rrm.ehour.ui.common.wicket.Container; import org.apache.wicket.AttributeModifier; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.ajax.attributes.AjaxRequestAttributes; import org.apache.wicket.ajax.markup.html.AjaxLink; import org.apache.wicket.event.Broadcast; import org.apache.wicket.event.IEvent; import org.apache.wicket.markup.head.IHeaderResponse; import org.apache.wicket.markup.head.JavaScriptHeaderItem; import org.apache.wicket.markup.head.OnDomReadyHeaderItem; import org.apache.wicket.markup.html.WebMarkupContainer; import org.apache.wicket.markup.html.basic.Label; import org.apache.wicket.markup.html.form.Form; import org.apache.wicket.markup.html.list.ListItem; import org.apache.wicket.markup.repeater.RepeatingView; import org.apache.wicket.model.IModel; import org.apache.wicket.model.Model; import org.apache.wicket.model.ResourceModel; import org.apache.wicket.request.resource.JavaScriptResourceReference; import java.io.IOException; import java.io.OutputStream; import java.io.Serializable; import java.util.Date; import java.util.UUID; import static net.rrm.ehour.ui.common.panel.entryselector.EntrySelectorData.EntrySelectorRow; /** * Selector with autocompletion filter */ public class EntrySelectorPanel extends AbstractBasePanel<EntrySelectorData> { private static final JavaScriptResourceReference JS = new JavaScriptResourceReference(EntrySelectorPanel.class, "entrySelector.js"); private static final String ITEM_LIST_ID = "itemList"; private static final String HEADER_ID = "headers"; private final ClickHandler clickHandler; private final boolean wide; private IModel<String> hideInactiveLinkTooltip; private boolean showHideInactiveLink = false; private WebMarkupContainer listContainer; private final String frameDomId; private final String jsObjectId; public EntrySelectorPanel(String id, EntrySelectorData entrySelectorData, ClickHandler clickHandler) { this(id, entrySelectorData, clickHandler, null); } public EntrySelectorPanel(String id, EntrySelectorData entrySelectorData, ClickHandler clickHandler, IModel<String> hideInactiveLinkTooltip) { this(id, entrySelectorData, clickHandler, hideInactiveLinkTooltip, false); } public EntrySelectorPanel(String id, EntrySelectorData entrySelectorData, ClickHandler clickHandler, IModel<String> hideInactiveLinkTooltip, boolean wide) { super(id, new Model<>(entrySelectorData)); frameDomId = "entrySelectorFrame_" + randomId(); jsObjectId = "entrySelector_" + randomId(); this.clickHandler = clickHandler; this.wide = wide; if (hideInactiveLinkTooltip != null) { this.hideInactiveLinkTooltip = hideInactiveLinkTooltip; showHideInactiveLink = true; } } private static String randomId() { return UUID.randomUUID().toString().replaceAll("-", ""); } @Override public void onEvent(IEvent<?> eventWrapper) { Object event = eventWrapper.getPayload(); if (event instanceof EntryListUpdatedEvent) { EntryListUpdatedEvent entryListUpdatedEvent = (EntryListUpdatedEvent) event; reRender(entryListUpdatedEvent.target()); } } public void updateData(EntrySelectorData entrySelectorData) { setDefaultModelObject(entrySelectorData); listContainer.addOrReplace(createListView(ITEM_LIST_ID)); } public void reRender(AjaxRequestTarget target) { target.add(listContainer); target.appendJavaScript(jsRefresh()); } private String jsRefresh() { return "window." + jsObjectId + ".refresh();"; } @Override public void renderHead(IHeaderResponse response) { response.render(JavaScriptHeaderItem.forReference(JS)); response.render(OnDomReadyHeaderItem.forScript("window." + jsObjectId + " = new EntrySelector('#" + frameDomId + "', '#listFilter', '.entrySelectorTable');")); } @Override protected void onInitialize() { super.onInitialize(); WebMarkupContainer selectorFrame = new WebMarkupContainer("entrySelectorFrame"); selectorFrame.setMarkupId(frameDomId); selectorFrame.setOutputMarkupId(true); if (wide) { selectorFrame.add(AttributeModifier.append("style", "width: 97%;")); } addOrReplace(selectorFrame); selectorFrame.add(createForm()); GreyBlueRoundedBorder border = new GreyBlueRoundedBorder("blueBorder") { @Override protected WebMarkupContainer createComponent() { WebMarkupContainer component = super.createComponent(); component.add(AttributeModifier.append("class", "inline")); if (wide) { component.add(AttributeModifier.append("style", "width: 100%;")); } return component; } }; if (wide) { border.add(AttributeModifier.append("style", "width: 100%;")); } border.setOutputMarkupId(true); selectorFrame.add(border); listContainer = new Container("listScroll"); listContainer.setMarkupId("listContents"); if (!wide) { listContainer.add(AttributeModifier.append("class", "limitWidth")); } else { listContainer.add(AttributeModifier.append("style", "width: 99%")); } border.add(listContainer); listContainer.add(createHeaders(HEADER_ID)); listContainer.add(createListView(ITEM_LIST_ID)); } private RepeatingView createHeaders(String id) { RepeatingView cells = new RepeatingView(id); for (EntrySelectorData.Header header : getPanelModelObject().getColumnHeaders()) { Label label = new Label(cells.newChildId(), new ResourceModel(header.getResourceLabel())); if (header.getColumnType() == EntrySelectorData.ColumnType.NUMERIC || header.getColumnType() == EntrySelectorData.ColumnType.DATE) { label.add(AttributeModifier.replace("class", "numeric")); } cells.add(label); } return cells; } private EntrySelectorListView createListView(String id) { return new EntrySelectorListView(id, getPanelModelObject().getRows(), clickHandler) { @Override protected void onPopulate(ListItem<EntrySelectorRow> item, IModel<EntrySelectorRow> itemModel) { EntrySelectorRow object = item.getModelObject(); RepeatingView cells = new RepeatingView("child"); int index = 0; for (Serializable serializable : object.getCells()) { EntrySelectorData.Header header = getPanelModelObject().getColumnHeaders().get(index); EntrySelectorData.ColumnType columnType = header.getColumnType(); Label label; if (columnType == EntrySelectorData.ColumnType.DATE) { Date date = (Date) serializable; DateModel dateModel; dateModel = new DateModel(date, EhourWebSession.getEhourConfig(), DateModel.DATESTYLE_FULL_SHORT); label = new Label(cells.newChildId(), dateModel); label.setEscapeModelStrings(false); } else { label = new Label(cells.newChildId(), serializable); } if (columnType == EntrySelectorData.ColumnType.HTML) { label.setEscapeModelStrings(false); } cells.add(label); if (columnType == EntrySelectorData.ColumnType.NUMERIC) { label.add(AttributeModifier.replace("class", "numeric")); } else if (columnType == EntrySelectorData.ColumnType.DATE) { label.add(AttributeModifier.replace("class", "numeric")); } if (!object.isActive()) { label.add(AttributeModifier.append("class", "inactive")); } index++; } item.add(cells); } }; } private Form<Void> createForm() { Form<Void> form = new Form<>("filterForm"); WebMarkupContainer filterInputContainer = new WebMarkupContainer("filterInputContainer"); add(filterInputContainer); form.add(filterInputContainer); WebMarkupContainer listFilter = new WebMarkupContainer("listFilter"); listFilter.setMarkupId("listFilter"); listFilter.setOutputMarkupId(true); listFilter.add(AttributeModifier.replace("placeholder", new ResourceModel("report.filter").getObject())); filterInputContainer.add(listFilter); addHideInactiveFilter(form); XlsxLink excelLink = createExcelLink(); form.add(excelLink); onFiltersCreated(filterInputContainer); return form; } protected void onFiltersCreated(WebMarkupContainer filterInputContainer) { } private XlsxLink createExcelLink() { return new XlsxLink("toExcel", "out.xlsx", new IWriteBytes() { @Override public void write(OutputStream stream) throws IOException { EntrySelectorExcelGenerator excelGenerator = new EntrySelectorExcelGenerator(); ExcelWorkbook workbook = excelGenerator.create(getPanelModelObject(), "Export"); workbook.write(stream); } }); } private void addHideInactiveFilter(Form<Void> form) { final HideInactiveFilter hideInactiveFilter = new HideInactiveFilter(); hideInactiveFilter.setHideInactive(getEhourWebSession().getHideInactiveSelections()); final WebMarkupContainer filterIcon = new WebMarkupContainer("filterIcon"); addFilterIconAttributes(filterIcon, getEhourWebSession().getHideInactiveSelections()); filterIcon.setOutputMarkupId(true); final AjaxLink<Void> hideInactiveLink = new AjaxLink<Void>("filterToggle") { @Override public void onClick(AjaxRequestTarget target) { Boolean hideInactiveSelections = getEhourWebSession().toggleHideInactiveSelections(); HideInactiveFilter inactiveFilter = new HideInactiveFilter(hideInactiveSelections); send(getPage(), Broadcast.DEPTH, new InactiveFilterChangedEvent(inactiveFilter, target)); target.appendJavaScript(jsRefresh()); filterIcon.removeAll(); addFilterIconAttributes(filterIcon, getEhourWebSession().getHideInactiveSelections()); target.add(filterIcon); } @Override protected void updateAjaxAttributes(AjaxRequestAttributes attributes) { super.updateAjaxAttributes(attributes); attributes.getAjaxCallListeners().add(new LoadingSpinnerDecorator()); } }; hideInactiveLink.setVisible(showHideInactiveLink); hideInactiveLink.add(filterIcon); form.add(hideInactiveLink); } private void addFilterIconAttributes(WebMarkupContainer filterIcon, boolean active) { filterIcon.add(AttributeModifier.replace("title", hideInactiveLinkTooltip)); filterIcon.add(AttributeModifier.replace("class", active ? "fa fa-toggle-on" : "fa fa-toggle-off")); } private static final long serialVersionUID = -7928428437664050056L; public interface ClickHandler extends Serializable { void onClick(EntrySelectorData.EntrySelectorRow row, AjaxRequestTarget target) throws ObjectNotFoundException; } public static class EntrySelectorBuilder { private EntrySelectorData entrySelectorData; private final String id; private ClickHandler clickHandler; private IModel<String> hideInactiveLinkTooltip; private boolean wide = false; public EntrySelectorBuilder(String id) { this.id = id; } public static EntrySelectorBuilder startAs(String id) { return new EntrySelectorBuilder(id); } public EntrySelectorBuilder withData(EntrySelectorData entrySelectorData) { this.entrySelectorData = entrySelectorData; return this; } public EntrySelectorBuilder onClick(ClickHandler clickHandler) { this.clickHandler = clickHandler; return this; } public EntrySelectorBuilder withInactiveTooltip(IModel<String> hideInactiveLinkTooltip) { this.hideInactiveLinkTooltip = hideInactiveLinkTooltip; return this; } public EntrySelectorBuilder isWide() { this.wide = true; return this; } public EntrySelectorPanel build() { return new EntrySelectorPanel(id, entrySelectorData, clickHandler, hideInactiveLinkTooltip, wide); } } }