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.StringUtils;
25 import org.glom.web.client.Utils;
26 import org.glom.web.client.event.LocaleChangeEvent;
27 import org.glom.web.client.event.QuickFindChangeEvent;
28 import org.glom.web.client.event.TableChangeEvent;
29 import org.glom.web.client.place.DetailsPlace;
30 import org.glom.web.client.place.HasSelectableTablePlace;
31 import org.glom.web.client.place.ListPlace;
32 import org.glom.web.client.ui.TableSelectionView;
33 import org.glom.web.client.ui.View;
34 import org.glom.web.shared.DocumentInfo;
36 import com.google.gwt.activity.shared.AbstractActivity;
37 import com.google.gwt.core.client.GWT;
38 import com.google.gwt.event.dom.client.ChangeEvent;
39 import com.google.gwt.event.dom.client.ChangeHandler;
40 import com.google.gwt.event.dom.client.HasChangeHandlers;
41 import com.google.gwt.event.shared.EventBus;
42 import com.google.gwt.event.shared.HandlerRegistration;
43 import com.google.gwt.i18n.client.LocaleInfo;
44 import com.google.gwt.place.shared.Place;
45 import com.google.gwt.user.client.Window;
46 import com.google.gwt.user.client.rpc.AsyncCallback;
47 import com.google.gwt.user.client.ui.AcceptsOneWidget;
52 public class TableSelectionActivity extends AbstractActivity implements View.Presenter {
53 private final ClientFactory clientFactory;
54 private String documentID;
55 private String documentTitle;
56 private String tableName;
57 private String quickFind;
58 private HandlerRegistration tableChangeHandlerRegistration = null;
59 private HandlerRegistration quickFindChangeHandlerRegistration = null;
60 private HandlerRegistration localeChangeHandlerRegistration = null;
62 // This activity isn't properly configured until the List or Details Place is set with the appropriate methods
63 public TableSelectionActivity(final ClientFactory clientFactory) {
64 this.clientFactory = clientFactory;
68 * Invoked by the ActivityManager to start a new Activity
71 public void start(final AcceptsOneWidget containerWidget, final EventBus eventBus) {
73 final TableSelectionView tableSelectionView = clientFactory.getTableSelectionView();
74 tableSelectionView.setPresenter(this);
76 // For table changes with the tableSelector:
77 final HasChangeHandlers tableSelector = tableSelectionView.getTableSelector();
78 tableChangeHandlerRegistration = tableSelector.addChangeHandler(new ChangeHandler() {
80 public void onChange(final ChangeEvent event) {
81 // Fire a table change event so that other views (e.g. the details view) know about the change and can
83 eventBus.fireEvent(new TableChangeEvent(tableSelectionView.getSelectedTableName()));
85 // Update the browser title because there's place change and the setPlace() method will not be called.
86 Window.setTitle(documentTitle + ": " + tableSelectionView.getSelectedTableTitle());
90 // For quick find changes with the quick find box:
91 final HasChangeHandlers quickFindBox = tableSelectionView.getQuickFindBox();
92 quickFindChangeHandlerRegistration = quickFindBox.addChangeHandler(new ChangeHandler() {
94 public void onChange(final ChangeEvent event) {
95 // Fire a quickfind change event so that other views (e.g. the details view) know about the change and
98 eventBus.fireEvent(new QuickFindChangeEvent(tableSelectionView.getQuickFindText()));
100 // Update the browser title because there's place change and the setPlace() method will not be called.
101 // TODO? Window.setTitle(documentTitle + ": " + tableSelectionView.getSelectedTableTitle());
105 // For locale changes with the localeSelector:
106 final HasChangeHandlers localeSelector = tableSelectionView.getLocaleSelector();
107 localeChangeHandlerRegistration = localeSelector.addChangeHandler(new ChangeHandler() {
109 public void onChange(final ChangeEvent event) {
110 // Show the translated version of the document title and the table names:
111 final String localeID = tableSelectionView.getSelectedLocale();
112 fillView(tableSelectionView);
114 final String newURL = Window.Location.createUrlBuilder()
115 .setParameter(LocaleInfo.getLocaleQueryParam(), localeID).buildString();
116 Window.Location.assign(newURL);
118 // Fire a locale change event so that other views (e.g. the details view) know about the change and can
119 // update themselves.
120 eventBus.fireEvent(new LocaleChangeEvent(localeID));
124 fillView(tableSelectionView);
126 // we're done, set the widget
127 containerWidget.setWidget(tableSelectionView.asWidget());
130 private void fillView(final TableSelectionView tableSelectionView) {
131 // get the table names, table titles and default table index for the current document
132 final AsyncCallback<DocumentInfo> callback = new AsyncCallback<DocumentInfo>() {
134 public void onFailure(final Throwable caught) {
135 // TODO: create a way to notify users of asynchronous callback failures
136 GWT.log("AsyncCallback Failed: OnlineGlomService.getDocumentInfo()");
140 public void onSuccess(final DocumentInfo result) {
141 tableSelectionView.setTableSelection(result.getTableNames(), result.getTableTitles());
143 if (StringUtils.isEmpty(tableName)) {
144 tableName = result.getTableNames().get(result.getDefaultTableIndex());
147 tableSelectionView.setSelectedTableName(tableName);
149 tableSelectionView.setLocaleList(result.getLocaleIDs(), result.getLocaleTitles());
151 final String localeID = Utils.getCurrentLocaleID();
152 tableSelectionView.setSelectedLocale(localeID);
154 documentTitle = result.getTitle();
155 tableSelectionView.setDocumentTitle(documentTitle);
156 Window.setTitle(documentTitle + ": " + tableSelectionView.getSelectedTableTitle());
159 final String localeID = Utils.getCurrentLocaleID();
160 OnlineGlomServiceAsync.Util.getInstance().getDocumentInfo(documentID, localeID, callback);
162 // Show the quickFind text that was specified by the URL token:
163 tableSelectionView.setQuickFindText(quickFind);
166 // This method will be called before the {@link TableSelectionActivity#start(AcceptsOneWidget, EventBus)} method and
167 // any time the Place changes after the start method has been called.
168 public void setPlace(final HasSelectableTablePlace place) {
169 documentID = place.getDocumentID();
170 tableName = place.getTableName();
173 final ListPlace asPlace = (ListPlace) place;
174 quickFind = asPlace.getQuickFind();
175 } catch (final ClassCastException ex) {
179 final TableSelectionView tableSelectionView = clientFactory.getTableSelectionView();
181 // Update the selected table if it's not correct.
182 if (!tableSelectionView.getSelectedTableName().equals(tableName)) {
183 tableSelectionView.setSelectedTableName(tableName);
186 // show the 'back to list' link if we're at a DetailsPlace, hide it otherwise
187 if (place instanceof DetailsPlace) {
188 tableSelectionView.setBackLinkVisible(true);
189 tableSelectionView.setBackLink(documentID, tableName, ""); // TODO: quickfind?
190 } else if (place instanceof ListPlace) {
191 tableSelectionView.setBackLinkVisible(false);
194 fillView(tableSelectionView);
197 private void clearView() {
198 clientFactory.getTableSelectionView().clear();
200 if (tableChangeHandlerRegistration != null) {
201 tableChangeHandlerRegistration.removeHandler();
202 tableChangeHandlerRegistration = null;
205 if (quickFindChangeHandlerRegistration != null) {
206 quickFindChangeHandlerRegistration.removeHandler();
207 quickFindChangeHandlerRegistration = null;
210 if (localeChangeHandlerRegistration != null) {
211 localeChangeHandlerRegistration.removeHandler();
212 localeChangeHandlerRegistration = null;
219 * @see com.google.gwt.activity.shared.AbstractActivity#onCancel()
222 public void onCancel() {
229 * @see com.google.gwt.activity.shared.AbstractActivity#onStop()
232 public void onStop() {
239 * @see org.glom.web.client.ui.View.Presenter#goTo(com.google.gwt.place.shared.Place)
242 public void goTo(final Place place) {
243 clientFactory.getPlaceController().goTo(place);