Java tutorial
/* * (C) Copyright 2006-2008 Nuxeo SA (http://nuxeo.com/) and others. * * Licensed 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. * * Contributors: * Alexandre Russel * * $Id$ */ package org.nuxeo.ecm.platform.annotations.gwt.client.view; import java.util.HashMap; import java.util.HashSet; import java.util.List; import java.util.Map; import java.util.Set; import org.nuxeo.ecm.platform.annotations.gwt.client.annotea.RDFConstant; import org.nuxeo.ecm.platform.annotations.gwt.client.configuration.AnnotationDefinition; import org.nuxeo.ecm.platform.annotations.gwt.client.configuration.AnnotationFilter; import org.nuxeo.ecm.platform.annotations.gwt.client.configuration.WebConfiguration; import org.nuxeo.ecm.platform.annotations.gwt.client.configuration.filter.InMenuFilter; import org.nuxeo.ecm.platform.annotations.gwt.client.controler.AnnotationController; import org.nuxeo.ecm.platform.annotations.gwt.client.model.Annotation; import org.nuxeo.ecm.platform.annotations.gwt.client.model.AnnotationChangeListener; import org.nuxeo.ecm.platform.annotations.gwt.client.model.AnnotationModel; import org.nuxeo.ecm.platform.annotations.gwt.client.util.AnnotationUtils; import org.nuxeo.ecm.platform.annotations.gwt.client.view.i18n.TranslationConstants; import org.nuxeo.ecm.platform.annotations.gwt.client.view.i18n.TranslationMessages; import com.google.gwt.core.client.GWT; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.ui.ChangeListener; import com.google.gwt.user.client.ui.ClickListener; import com.google.gwt.user.client.ui.Frame; import com.google.gwt.user.client.ui.Grid; import com.google.gwt.user.client.ui.HTML; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.Image; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.ListBox; import com.google.gwt.user.client.ui.PushButton; import com.google.gwt.user.client.ui.VerticalPanel; import com.google.gwt.user.client.ui.Widget; /** * @author Alexandre Russel */ public class AnnotationManagerPanel extends VerticalPanel implements AnnotationChangeListener { private static final String CLASS_NAME = "annotationManagerPanel"; private final WebConfiguration webConfiguration; private AnnotationController controller; private AnnotationModel model; private VerticalPanel shownAnnotation = new VerticalPanel(); private Map<String, Integer> selectedParams = new HashMap<String, Integer>(); private HorizontalPanel selectedRow; public AnnotationManagerPanel(AnnotationController controller, WebConfiguration webConfiguration) { this.controller = controller; this.webConfiguration = webConfiguration; setStyleName(CLASS_NAME); } public void onChange(AnnotationModel model, ChangeEvent ce) { this.model = model; if (ce == ChangeEvent.annotationList) { update(); } } private void update() { clear(); addAnnotationsActionList(); addFiltersToolbar(); addAnnotationsList(); } private void addFiltersToolbar() { HorizontalPanel toolBar = new HorizontalPanel(); List<AnnotationFilter> filters = webConfiguration.getFilters(); for (final AnnotationFilter filter : filters) { PushButton button = new PushButton(new Image(filter.getIcon()), new ClickListener() { public void onClick(Widget sender) { model.setFilter(filter); } }); button.setTitle(filter.getName()); toolBar.add(button); } Label spacer = new Label(" "); toolBar.add(spacer); toolBar.setCellWidth(spacer, "100%"); List<AnnotationDefinition> inMenuAnnos = webConfiguration.getAnnotationDefinitions(new InMenuFilter()); TranslationMessages translationMessages = GWT.create(TranslationMessages.class); for (AnnotationDefinition annotationDef : inMenuAnnos) { final String annName = annotationDef.getName(); PushButton button = new PushButton(new Image(annotationDef.getListIcon()), new ClickListener() { public void onClick(Widget sender) { new AnnotationListPopup(annName, model.filterAnnotations(new AnnotationFilter("", "", annName, null, null)), webConfiguration).show(); } }); button.setTitle(translationMessages.viewAnnotations(annotationDef.getName())); toolBar.add(button); } for (AnnotationDefinition annotationDef : inMenuAnnos) { final String annName = annotationDef.getName(); final String annType = annotationDef.getType(); PushButton button = new PushButton(new Image(annotationDef.getCreateIcon()), new ClickListener() { public void onClick(Widget sender) { controller.createNewAnnotation("#xpointer(null-range)"); NewAnnotationPopup popup = new NewAnnotationPopup(null, controller, false, annType, annName); popup.show(); } }); button.setTitle(translationMessages.addAnnotation(annotationDef.getName())); toolBar.add(button); } add(toolBar); final AnnotationFilter currentFilter = model.getFilter(); if (currentFilter != null && !currentFilter.getParameters().isEmpty()) { List<String> parameters = currentFilter.getParameters(); Map<String, String> labels = webConfiguration.getFieldLabels(); Grid filterGrid = new Grid(parameters.size(), 2); filterGrid.setStyleName("filterGrid"); filterGrid.getColumnFormatter().setWidth(1, "100%"); for (int i = 0; i < parameters.size(); i++) { final String parameter = parameters.get(i); filterGrid.setWidget(i, 0, new Label((labels.containsKey(parameter) ? labels.get(parameter) : parameter) + ": ")); final ListBox filterListBox = new ListBox(); filterListBox.setStyleName("filterListBox"); filterListBox.addItem("All"); Set<String> values = new HashSet<String>(); for (Annotation annotation : model.getUnfilteredAnnotations()) { if (parameter.equals(RDFConstant.R_TYPE)) { values.add(annotation.getShortType()); } else if (parameter.equals(RDFConstant.D_CREATOR)) { values.add(annotation.getAuthor()); } else { String value = annotation.getFields().get(parameter); if (value != null) { values.add(value); } } } for (String value : values) { filterListBox.addItem(value); } if (selectedParams.containsKey(parameter)) { filterListBox.setSelectedIndex(selectedParams.get(parameter).intValue()); } if (parameter.equals(RDFConstant.R_TYPE)) { filterListBox.addChangeListener(new ChangeListener() { public void onChange(Widget arg0) { int selectedIndex = filterListBox.getSelectedIndex(); if (selectedIndex == 0) { currentFilter.setType(null); } else { currentFilter.setType(filterListBox.getItemText(selectedIndex)); } selectedParams.put(parameter, Integer.valueOf(selectedIndex)); model.setFilter(currentFilter); } }); } else if (parameter.equals(RDFConstant.D_CREATOR)) { filterListBox.addChangeListener(new ChangeListener() { public void onChange(Widget arg0) { int selectedIndex = filterListBox.getSelectedIndex(); if (selectedIndex == 0) { currentFilter.setAuthor(null); } else { currentFilter.setAuthor(filterListBox.getItemText(selectedIndex)); } selectedParams.put(parameter, Integer.valueOf(selectedIndex)); model.setFilter(currentFilter); } }); } else { filterListBox.addChangeListener(new ChangeListener() { public void onChange(Widget arg0) { int selectedIndex = filterListBox.getSelectedIndex(); if (selectedIndex == 0) { currentFilter.removeField(parameter); } else { currentFilter.setField(parameter, filterListBox.getItemText(selectedIndex)); } selectedParams.put(parameter, Integer.valueOf(selectedIndex)); model.setFilter(currentFilter); } }); } filterGrid.setWidget(i, 1, filterListBox); } add(filterGrid); } } private void addAnnotationsActionList() { add(new AnnotationActionsBanner(controller)); } private void addAnnotationsList() { HorizontalPanel hpSelected = null; int selectedAnnotationIndex = -1; VerticalPanel vp = new VerticalPanel(); vp.setStylePrimaryName("annotation-list"); final List<Annotation> annotations = model.getAnnotations(); for (int y = 0; y < annotations.size(); y++) { final int row = y; Annotation annotation = annotations.get(y); final HorizontalPanel hp = new HorizontalPanel(); hp.setWidth("100%"); AnnotationDefinition def = webConfiguration.getAnnotationDefinition(annotation.getShortType()); Image icon = new Image(def.getIcon()); icon.addClickListener(new ClickListener() { public void onClick(Widget sender) { updateSelectedAnnotation(row); selectAnnotation(hp, row); } }); hp.add(icon); Label date = new Label(annotation.getFormattedDate()); date.addClickListener(new ClickListener() { public void onClick(Widget sender) { updateSelectedAnnotation(row); selectAnnotation(hp, row); } }); hp.add(date); // add the displayed fields Set<String> displayedFields = webConfiguration.getDisplayedFields(); for (String displayedField : displayedFields) { String value = annotation.getFields().get(displayedField); Label l = new Label(value != null ? value : " "); l.addClickListener(new ClickListener() { public void onClick(Widget sender) { updateSelectedAnnotation(row); selectAnnotation(hp, row); } }); hp.add(l); } vp.add(hp); if (getSelectedAnnotationIndex() == row) { hpSelected = hp; selectedAnnotationIndex = row; } } add(vp); if (hpSelected != null && selectedAnnotationIndex > -1) { selectAnnotation(hpSelected, selectedAnnotationIndex); } } private native void updateSelectedAnnotation(int index) /*-{ if (typeof top['updateSelectedAnnotation'] != "undefined") { top['updateSelectedAnnotation'](index); } }-*/; private void selectAnnotation(HorizontalPanel hp, int index) { setSelectedannotationIndex(index); updateShownAnnotation(index); updateSelectedRow(hp, index); } private native void setSelectedannotationIndex(int index) /*-{ top['selectedAnnotationIndex'] = index; }-*/; private native int getSelectedAnnotationIndex() /*-{ if (top && typeof top['selectedAnnotationIndex'] != "undefined") { return top['selectedAnnotationIndex']; } else { return -1; } }-*/; private void updateShownAnnotation(int y) { remove(shownAnnotation); shownAnnotation = new VerticalPanel(); shownAnnotation.addStyleName("shown-annotation"); Annotation ann = model.getAnnotations().get(y); add(shownAnnotation); HorizontalPanel horizontalPanel = new HorizontalPanel(); AnnotationDefinition def = webConfiguration.getAnnotationDefinition(ann.getShortType()); Image image = new Image(def.getIcon()); horizontalPanel.add(image); horizontalPanel.add(new Label(ann.getFormattedDate())); // add the displayed fields Set<String> displayedFields = webConfiguration.getDisplayedFields(); for (String displayedField : displayedFields) { String value = ann.getFields().get(displayedField); horizontalPanel.add(new Label("")); Label valueLabel = new Label(value != null ? value : " "); horizontalPanel.add(valueLabel); } Label spacer = new Label(" "); horizontalPanel.add(spacer); horizontalPanel.setCellWidth(spacer, "100%"); shownAnnotation.add(horizontalPanel); if (ann.isBodyUrl()) { Frame frame = new Frame(); frame.setUrl(ann.getBody()); shownAnnotation.add(frame); } else { HTML label = new HTML(AnnotationUtils.replaceCarriageReturns(ann.getBody())); label.setStyleName("annotation-body"); shownAnnotation.add(label); } } protected void updateSelectedRow(HorizontalPanel hp, final int index) { if (selectedRow != null) { selectedRow.removeStyleName("selectedAnnotationInList"); selectedRow.remove(selectedRow.getWidgetCount() - 1); } hp.setStyleName("selectedAnnotationInList"); Image deleteImage = new Image("icons/delete.png"); deleteImage.addClickListener(new ClickListener() { public void onClick(Widget sender) { TranslationConstants translationConstants = GWT.create(TranslationConstants.class); if (Window.confirm(translationConstants.menuConfirmDelete())) { controller.deleteAnnotation(index); setSelectedannotationIndex(-1); } } }); hp.add(deleteImage); selectedRow = hp; } }