2 * Copyright (C) 2011 Openismus GmbH
4 * This file is part of GWT-Glom.
6 * GWT-Glom is free software: you can redistribute it and/or modify it
7 * under the terms of the GNU Lesser General Public License as published by the
8 * Free Software Foundation, either version 3 of the License, or (at your
9 * option) any later version.
11 * GWT-Glom is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
16 * You should have received a copy of the GNU Lesser General Public License
17 * along with GWT-Glom. If not, see <http://www.gnu.org/licenses/>.
20 package org.glom.web.client.activity;
22 import org.glom.web.client.ClientFactory;
23 import org.glom.web.client.OnlineGlomServiceAsync;
24 import org.glom.web.client.event.TableChangeEvent;
25 import org.glom.web.client.place.DetailsPlace;
26 import org.glom.web.client.place.HasSelectableTablePlace;
27 import org.glom.web.client.place.ListPlace;
28 import org.glom.web.client.ui.TableSelectionView;
29 import org.glom.web.shared.GlomDocument;
31 import com.google.gwt.activity.shared.AbstractActivity;
32 import com.google.gwt.event.dom.client.ChangeEvent;
33 import com.google.gwt.event.dom.client.ChangeHandler;
34 import com.google.gwt.event.dom.client.HasChangeHandlers;
35 import com.google.gwt.event.shared.EventBus;
36 import com.google.gwt.event.shared.HandlerRegistration;
37 import com.google.gwt.place.shared.Place;
38 import com.google.gwt.user.client.Window;
39 import com.google.gwt.user.client.rpc.AsyncCallback;
40 import com.google.gwt.user.client.ui.AcceptsOneWidget;
41 import com.google.gwt.user.client.ui.ListBox;
44 * @author Ben Konrath <ben@bagu.org>
47 public class TableSelectionActivity extends AbstractActivity implements TableSelectionView.Presenter {
48 private final ClientFactory clientFactory;
49 private String documentID;
50 private String documentTitle;
51 private String tableName;
52 private HandlerRegistration changeHandlerRegistration = null;
54 // This activity isn't properly configured until the List or Details Place is set with the appropriate methods
55 public TableSelectionActivity(ClientFactory clientFactory) {
56 this.clientFactory = clientFactory;
60 * Invoked by the ActivityManager to start a new Activity
63 public void start(AcceptsOneWidget containerWidget, final EventBus eventBus) {
65 final TableSelectionView tableSelectionView = clientFactory.getTableSelectionView();
66 tableSelectionView.setPresenter(this);
68 HasChangeHandlers tableSelector = tableSelectionView.getTableSelector();
70 changeHandlerRegistration = tableSelector.addChangeHandler(new ChangeHandler() {
72 public void onChange(ChangeEvent event) {
73 ListBox listBox = (ListBox) event.getSource();
74 int selectedIndex = listBox.getSelectedIndex();
75 eventBus.fireEvent(new TableChangeEvent(selectedIndex < 0 ? "" : listBox.getValue(selectedIndex)));
76 Window.setTitle(documentTitle + (selectedIndex < 0 ? "" : ": " + listBox.getItemText(selectedIndex)));
80 // get the table names, table titles and default table index for the current document
81 AsyncCallback<GlomDocument> callback = new AsyncCallback<GlomDocument>() {
82 public void onFailure(Throwable caught) {
83 // FIXME: need to deal with failure
84 System.out.println("AsyncCallback Failed: OnlineGlomService.getGlomDocument()");
87 public void onSuccess(GlomDocument result) {
88 tableSelectionView.setTableSelection(result.getTableNames(), result.getTableTitles());
90 if (tableName == null || tableName.isEmpty()) {
91 tableName = result.getTableNames().get(result.getDefaultTableIndex());
94 tableSelectionView.setSelectedTableName(tableName);
95 documentTitle = result.getTitle();
96 Window.setTitle(documentTitle + ": " + result.getTableTitles().get(result.getDefaultTableIndex()));
99 OnlineGlomServiceAsync.Util.getInstance().getGlomDocument(documentID, callback);
101 // we're done, set the widget
102 containerWidget.setWidget(tableSelectionView.asWidget());
105 // This method will be called before the {@link TableSelectionActivity#start(AcceptsOneWidget, EventBus)} method
106 public void setPlace(HasSelectableTablePlace place) {
107 this.documentID = place.getDocumentID();
108 this.tableName = place.getTableName();
110 TableSelectionView tableSelectionView = clientFactory.getTableSelectionView();
112 // show the 'back to list' link if we're at a DetailsPlace, hide it otherwise
113 if (place instanceof DetailsPlace) {
114 tableSelectionView.setBackLinkVisible(true);
115 tableSelectionView.setBackLink(documentID, tableName);
116 } else if (place instanceof ListPlace) {
117 tableSelectionView.setBackLinkVisible(false);
121 private void clearView() {
122 clientFactory.getTableSelectionView().clear();
123 if (changeHandlerRegistration != null) {
124 changeHandlerRegistration.removeHandler();
125 changeHandlerRegistration = null;
132 * @see com.google.gwt.activity.shared.AbstractActivity#onCancel()
135 public void onCancel() {
142 * @see com.google.gwt.activity.shared.AbstractActivity#onStop()
145 public void onStop() {
152 * @see org.glom.web.client.ui.TableSelectionView.Presenter#goTo(com.google.gwt.place.shared.Place)
155 public void goTo(Place place) {
156 clientFactory.getPlaceController().goTo(place);