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.ArrayList; import java.util.List; import java.util.Map; import org.nuxeo.ecm.platform.annotations.gwt.client.AnnotationConstant; import org.nuxeo.ecm.platform.annotations.gwt.client.configuration.AnnotationDefinition; import org.nuxeo.ecm.platform.annotations.gwt.client.configuration.WebConfiguration; import org.nuxeo.ecm.platform.annotations.gwt.client.configuration.filter.TypeFilter; 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.util.XPointerFactory; import org.nuxeo.ecm.platform.annotations.gwt.client.view.i18n.TranslationConstants; import com.allen_sauer.gwt.log.client.Log; import com.google.gwt.core.client.GWT; import com.google.gwt.dom.client.Document; import com.google.gwt.dom.client.Element; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.ClickListener; import com.google.gwt.user.client.ui.DockPanel; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.KeyboardListenerAdapter; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.ListBox; import com.google.gwt.user.client.ui.PopupPanel; import com.google.gwt.user.client.ui.TextArea; import com.google.gwt.user.client.ui.VerticalPanel; import com.google.gwt.user.client.ui.Widget; /** * @author <a href="mailto:arussel@nuxeo.com">Alexandre Russel</a> */ public class NewAnnotationPopup extends PopupPanel { private class AnnotationTextArea extends TextArea { public AnnotationTextArea() { addKeyboardListener(new KeyboardListenerAdapter() { public void onKeyUp(Widget sender, char keyCode, int modifiers) { String content = getText(); if (content.trim().equals("")) { submit.setEnabled(false); } else { submit.setEnabled(true); } } @SuppressWarnings("deprecation") @Override public void onKeyPress(Widget sender, char keyCode, int modifiers) { TextArea ta = (TextArea) sender; String content = ta.getText(); if (Character.isLetterOrDigit(keyCode) || Character.isSpace(keyCode)) { if (content.length() >= AnnotationConstant.MAX_ANNOTATION_TEXT_LENGTH) { ta.cancelKey(); } } } }); setCharacterWidth(30); setVisibleLines(6); } } private final AnnotationController controller; public String selectedAnnotationType = null; private final ListBox listBox = new ListBox(); private final List<ListBox> fieldListBoxes = new ArrayList<ListBox>(); private final VerticalPanel verticalPanel = new VerticalPanel(); private final DockPanel dockPanel = new DockPanel(); private final AnnotationTextArea annotationTextArea = new AnnotationTextArea(); private final HorizontalPanel flowPanel = new HorizontalPanel(); private final Button submit; private final Button cancel; private final Element element; private final boolean removeOnCancel; public NewAnnotationPopup(final Element element, final AnnotationController controller, final boolean removeOnCancel, final String annotationType) { this(element, controller, removeOnCancel, annotationType, null); } public NewAnnotationPopup(final Element element, final AnnotationController controller, final boolean removeOnCancel, final String annotationType, final String annotationName) { this.controller = controller; this.element = element; this.removeOnCancel = removeOnCancel; GWT.log("creating new annotation pop up", null); int scroll = Document.get().getBody().getScrollTop(); controller.setFrameScrollFromTop(scroll); dockPanel.setStyleName("annotationsNewAnnotationPopup"); dockPanel.add(verticalPanel, DockPanel.NORTH); dockPanel.add(annotationTextArea, DockPanel.CENTER); dockPanel.add(flowPanel, DockPanel.SOUTH); if (annotationName != null) { selectedAnnotationType = annotationName; // Add into the view verticalPanel.add(new Label(selectedAnnotationType)); Map<String, String[]> fields = controller.getWebConfiguration().getAnnotationDefinition(annotationName) .getFields(); for (String fieldName : fields.keySet()) { ListBox fieldListBox = new ListBox(); fieldListBox.setName(fieldName); for (String choice : fields.get(fieldName)) { fieldListBox.addItem(choice); } fieldListBoxes.add(fieldListBox); // Add into the view verticalPanel.add(fieldListBox); } } else { WebConfiguration webConf = controller.getWebConfiguration(); List<AnnotationDefinition> annotationDefs = webConf .getAnnotationDefinitions(new TypeFilter(annotationType)); if (annotationDefs.size() == 1) { selectedAnnotationType = annotationDefs.get(0).getName(); String label = selectedAnnotationType; // If this is the default annotation (Comment), internationalize the // title if (label.equals(AnnotationConstant.COMMENT_ANNOTATION_NAME)) { TranslationConstants translationContants = GWT.create(TranslationConstants.class); label = translationContants.comment(); } // Add into the view verticalPanel.add(new Label(label)); } else { for (AnnotationDefinition annotationDef : annotationDefs) { listBox.addItem(annotationDef.getName()); } // Add into the view verticalPanel.add(listBox); } } TranslationConstants translationContants = GWT.create(TranslationConstants.class); submit = new Button(translationContants.submit()); submit.setEnabled(false); flowPanel.add(submit); cancel = new Button(translationContants.cancel()); flowPanel.add(cancel); submit.addClickListener(new CommitListener(element, annotationName)); cancel.addClickListener(new ClickListener() { public void onClick(Widget sender) { cancel(); } }); this.add(dockPanel); } public void cancel() { if (removeOnCancel) { element.getParentElement().removeChild(element); } controller.setCancelNewAnnotation(); controller.removeSelectedTextDecoration(); hide(); } @Override public void show() { Log.debug("popup.show: " + Window.getScrollTop() + 50); setPopupPosition(50 + Window.getScrollLeft(), Window.getScrollTop() + 50); controller.openCreationPopup(); super.show(); } @Override public void hide() { controller.closeCreationPopup(); super.hide(); } @Override public void onLoad() { super.onLoad(); annotationTextArea.setFocus(true); } private String getType() { if (selectedAnnotationType != null) { return selectedAnnotationType; } else { return listBox.getItemText(listBox.getSelectedIndex()); } } private class CommitListener implements ClickListener { public final Element element; public CommitListener(Element element, String annotationName) { this.element = element; } public void onClick(Widget sender) { String text = annotationTextArea.getText(); if (text.length() > AnnotationConstant.MAX_ANNOTATION_TEXT_LENGTH) { Window.alert("Your annotation must not exceed " + AnnotationConstant.MAX_ANNOTATION_TEXT_LENGTH + " characters long."); return; } Annotation annotation = controller.getNewAnnotation(); annotation.setBody(text); annotation.setType(getType()); for (ListBox fieldListBox : fieldListBoxes) { annotation.getFields().put(fieldListBox.getName(), fieldListBox.getItemText(fieldListBox.getSelectedIndex())); } if (XPointerFactory.isImageRange(annotation.getXpointer().getXpointerString())) { if (element != null) { element.getParentNode().removeChild(element); } } controller.removeSelectedTextDecoration(); controller.submitNewAnnotation(); hide(); } } }