gitorious.org Git - online-glom:gwt-glom.git/blob - src/main/java/org/glom/web/client/activity/TableSelectionActivity.java

1 /*

3 *

4 * This file is part of GWT-Glom.

5 *

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.

10 *

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

14 * for more details.

15 *

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/>.

18 */

19

20 package org.glom.web.client.activity;

21

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.HasRecordsPlace;

31 import org.glom.web.client.place.HasTablePlace;

32 import org.glom.web.client.place.ListPlace;

33 import org.glom.web.client.place.ReportPlace;

34 import org.glom.web.client.ui.TableSelectionView;

35 import org.glom.web.client.ui.View;

36 import org.glom.web.shared.DocumentInfo;

37 import org.glom.web.shared.Reports;

38

39 import com.google.gwt.activity.shared.AbstractActivity;

40 import com.google.gwt.core.client.GWT;

41 import com.google.gwt.event.dom.client.ChangeEvent;

42 import com.google.gwt.event.dom.client.ChangeHandler;

43 import com.google.gwt.event.dom.client.HasChangeHandlers;

44 import com.google.gwt.event.shared.EventBus;

45 import com.google.gwt.event.shared.HandlerRegistration;

46 import com.google.gwt.i18n.client.LocaleInfo;

47 import com.google.gwt.place.shared.Place;

48 import com.google.gwt.user.client.Window;

49 import com.google.gwt.user.client.rpc.AsyncCallback;

50 import com.google.gwt.user.client.ui.AcceptsOneWidget;

51

52 /**

53 *

54 */

55 public class TableSelectionActivity extends AbstractActivity implements View.Presenter {

56 private final ClientFactory clientFactory;

57 private String documentID;

58 private String documentTitle;

59 private String tableName;

60 private String quickFind;

61 private String reportName;

62 private HandlerRegistration tableChangeHandlerRegistration = null;

63 private HandlerRegistration quickFindChangeHandlerRegistration = null;

64 private HandlerRegistration localeChangeHandlerRegistration = null;

65 private HandlerRegistration reportChangeHandlerRegistration = null;

66

67 // This activity isn't properly configured until the List or Details Place is set with the appropriate methods

68 public TableSelectionActivity(final ClientFactory clientFactory) {

69 this.clientFactory = clientFactory;

70 }

71

72 /**

73 * Invoked by the ActivityManager to start a new Activity

74 */

75 @Override

76 public void start(final AcceptsOneWidget containerWidget, final EventBus eventBus) {

77

78 final TableSelectionView tableSelectionView = clientFactory.getTableSelectionView();

79 tableSelectionView.setPresenter(this);

80

81 // For table changes with the tableSelector:

82 final HasChangeHandlers tableSelector = tableSelectionView.getTableSelector();

83 tableChangeHandlerRegistration = tableSelector.addChangeHandler(new ChangeHandler() {

84 @Override

85 public void onChange(final ChangeEvent event) {

86 // Fire a table change event so that other views (e.g. the details view) know about the change and can

87 // update themselves.

88 eventBus.fireEvent(new TableChangeEvent(tableSelectionView.getSelectedTableName()));

89

90 // Update the browser title because there's place change and the setPlace() method will not be called.

91 Window.setTitle(documentTitle + ": " + tableSelectionView.getSelectedTableTitle());

92 }

93 });

94

95 // For quick find changes with the quick find box:

96 final HasChangeHandlers quickFindBox = tableSelectionView.getQuickFindBox();

97 quickFindChangeHandlerRegistration = quickFindBox.addChangeHandler(new ChangeHandler() {

98 @Override

99 public void onChange(final ChangeEvent event) {

100 // Fire a quickfind change event so that other views (e.g. the details view) know about the change and

101 // can

102 // update themselves.

103 eventBus.fireEvent(new QuickFindChangeEvent(tableSelectionView.getQuickFindText()));

104

105 // Update the browser title because there's place change and the setPlace() method will not be called.

106 // TODO? Window.setTitle(documentTitle + ": " + tableSelectionView.getSelectedTableTitle());

107 }

108 });

109

110 // For locale changes with the localeSelector:

111 final HasChangeHandlers localeSelector = tableSelectionView.getLocaleSelector();

112 localeChangeHandlerRegistration = localeSelector.addChangeHandler(new ChangeHandler() {

113 @Override

114 public void onChange(final ChangeEvent event) {

115 // Show the translated version of the document title and the table names:

116 final String localeID = tableSelectionView.getSelectedLocale();

117 fillView(tableSelectionView);

118

119 final String newURL = Window.Location.createUrlBuilder()

120 .setParameter(LocaleInfo.getLocaleQueryParam(), localeID).buildString();

121 Window.Location.assign(newURL);

122

123 // Fire a locale change event so that other views (e.g. the details view) know about the change and can

124 // update themselves.

125 eventBus.fireEvent(new LocaleChangeEvent(localeID));

126 }

127 });

128

129 // For report choices with the reportSelector:

130 final HasChangeHandlers reportSelector = tableSelectionView.getReportSelector();

131 reportChangeHandlerRegistration = reportSelector.addChangeHandler(new ChangeHandler() {

132 @Override

133 public void onChange(final ChangeEvent event) {

134 goTo(new ReportPlace(documentID, tableName, tableSelectionView.getSelectedReport(), quickFind));

135 }

136 });

137

138 fillView(tableSelectionView);

139

140 // we're done, set the widget

141 containerWidget.setWidget(tableSelectionView.asWidget());

142 }

143

144 private void fillView(final TableSelectionView tableSelectionView) {

145 // get the table names, table titles and default table index for the current document

146 final AsyncCallback<DocumentInfo> callback = new AsyncCallback<DocumentInfo>() {

147 @Override

148 public void onFailure(final Throwable caught) {

149 // TODO: create a way to notify users of asynchronous callback failures

150 GWT.log("AsyncCallback Failed: OnlineGlomService.getDocumentInfo()");

151 }

152

153 @Override

154 public void onSuccess(final DocumentInfo result) {

155 tableSelectionView.setTableSelection(result.getTableNames(), result.getTableTitles());

156

157 if (StringUtils.isEmpty(tableName)) {

158 tableName = result.getTableNames().get(result.getDefaultTableIndex());

159 }

160

161 tableSelectionView.setSelectedTableName(tableName);

162

163 tableSelectionView.setLocaleList(result.getLocaleIDs(), result.getLocaleTitles());

164

165 final String localeID = Utils.getCurrentLocaleID();

166 tableSelectionView.setSelectedLocale(localeID);

167

168 documentTitle = result.getTitle();

169 tableSelectionView.setDocumentTitle(documentTitle);

170 Window.setTitle(documentTitle + ": " + tableSelectionView.getSelectedTableTitle());

171 }

172 };

173 final String localeID = Utils.getCurrentLocaleID();

174 OnlineGlomServiceAsync.Util.getInstance().getDocumentInfo(documentID, localeID, callback);

175

176 // get the reports list for the current table:

177 final AsyncCallback<Reports> callback_report = new AsyncCallback<Reports>() {

178 @Override

179 public void onFailure(final Throwable caught) {

180 // TODO: create a way to notify users of asynchronous callback failures

181 GWT.log("AsyncCallback Failed: OnlineGlomService.getReportsList()");

182 }

183

184 @Override

185 public void onSuccess(final Reports result) {

186 tableSelectionView.setReportList(result);

187

188 // Show the selected report name again:

189 // TODO: Avoid duplication in ReportActivity.

190 tableSelectionView.setSelectedReport(reportName);

191 }

192 };

193 OnlineGlomServiceAsync.Util.getInstance().getReportsList(documentID, tableName, localeID, callback_report);

194

195 // Show the quickFind text that was specified by the URL token:

196 tableSelectionView.setQuickFindText(quickFind);

197 }

198

199 // This method will be called before the {@link TableSelectionActivity#start(AcceptsOneWidget, EventBus)} method and

200 // any time the Place changes after the start method has been called.

201 public void setPlace(final HasTablePlace place) {

202 documentID = place.getDocumentID();

203 tableName = place.getTableName();

204

205 try {

206 final HasRecordsPlace asPlace = (HasRecordsPlace) place;

207 quickFind = asPlace.getQuickFind();

208 } catch (final ClassCastException ex) {

209 quickFind = "";

210 }

211

212 final TableSelectionView tableSelectionView = clientFactory.getTableSelectionView();

213

214 // show the 'back to list' link if we're at a DetailsPlace, hide it otherwise

215 if (place instanceof DetailsPlace) {

216 tableSelectionView.setBackLinkVisible(true);

217 tableSelectionView.setBackLink(documentID, tableName, ""); // TODO: quickfind?

218 } else if (place instanceof ListPlace) {

219 tableSelectionView.setBackLinkVisible(false);

220 }

221

222 if (place instanceof ReportPlace) {

223 reportName = ((ReportPlace)place).getReportName();

224 }

225

226 fillView(tableSelectionView);

227 }

228

229 private void clearView() {

230 clientFactory.getTableSelectionView().clear();

231

232 if (tableChangeHandlerRegistration != null) {

233 tableChangeHandlerRegistration.removeHandler();

234 tableChangeHandlerRegistration = null;

235 }

236

237 if (quickFindChangeHandlerRegistration != null) {

238 quickFindChangeHandlerRegistration.removeHandler();

239 quickFindChangeHandlerRegistration = null;

240 }

241

242 if (localeChangeHandlerRegistration != null) {

243 localeChangeHandlerRegistration.removeHandler();

244 localeChangeHandlerRegistration = null;

245 }

246

247 if (reportChangeHandlerRegistration != null) {

248 reportChangeHandlerRegistration.removeHandler();

249 reportChangeHandlerRegistration = null;

250 }

251 }

252

253 /*

254 * (non-Javadoc)

255 *

256 * @see com.google.gwt.activity.shared.AbstractActivity#onCancel()

257 */

258 @Override

259 public void onCancel() {

260 clearView();

261 }

262

263 /*

264 * (non-Javadoc)

265 *

266 * @see com.google.gwt.activity.shared.AbstractActivity#onStop()

267 */

268 @Override

269 public void onStop() {

270 clearView();

271 }

272

273 /*

274 * (non-Javadoc)

275 *

276 * @see org.glom.web.client.ui.View.Presenter#goTo(com.google.gwt.place.shared.Place)

277 */

278 @Override

279 public void goTo(final Place place) {

280 clientFactory.getPlaceController().goTo(place);

281 }

282

283 }