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.ui.TableSelectionView;

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

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

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

37

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

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

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

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

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

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

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

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

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

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

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

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

50

51 /**

52 *

53 */

54 public class TableSelectionActivity extends AbstractActivity implements View.Presenter {

55 private final ClientFactory clientFactory;

56 private String documentID;

57 private String documentTitle;

58 private String tableName;

59 private String quickFind;

60 private HandlerRegistration tableChangeHandlerRegistration = null;

61 private HandlerRegistration quickFindChangeHandlerRegistration = null;

62 private HandlerRegistration localeChangeHandlerRegistration = null;

63

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

65 public TableSelectionActivity(final ClientFactory clientFactory) {

66 this.clientFactory = clientFactory;

67 }

68

69 /**

70 * Invoked by the ActivityManager to start a new Activity

71 */

72 @Override

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

74

75 final TableSelectionView tableSelectionView = clientFactory.getTableSelectionView();

76 tableSelectionView.setPresenter(this);

77

78 // For table changes with the tableSelector:

79 final HasChangeHandlers tableSelector = tableSelectionView.getTableSelector();

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

81 @Override

82 public void onChange(final ChangeEvent event) {

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

84 // update themselves.

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

86

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

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

89 }

90 });

91

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

93 final HasChangeHandlers quickFindBox = tableSelectionView.getQuickFindBox();

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

95 @Override

96 public void onChange(final ChangeEvent event) {

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

98 // can

99 // update themselves.

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

101

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

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

104 }

105 });

106

107 // For locale changes with the localeSelector:

108 final HasChangeHandlers localeSelector = tableSelectionView.getLocaleSelector();

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

110 @Override

111 public void onChange(final ChangeEvent event) {

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

113 final String localeID = tableSelectionView.getSelectedLocale();

114 fillView(tableSelectionView);

115

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

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

118 Window.Location.assign(newURL);

119

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

121 // update themselves.

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

123 }

124 });

125

126 fillView(tableSelectionView);

127

128 // we're done, set the widget

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

130 }

131

132 private void fillView(final TableSelectionView tableSelectionView) {

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

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

135 @Override

136 public void onFailure(final Throwable caught) {

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

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

139 }

140

141 @Override

142 public void onSuccess(final DocumentInfo result) {

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

144

145 if (StringUtils.isEmpty(tableName)) {

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

147 }

148

149 tableSelectionView.setSelectedTableName(tableName);

150

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

152

153 final String localeID = Utils.getCurrentLocaleID();

154 tableSelectionView.setSelectedLocale(localeID);

155

156 documentTitle = result.getTitle();

157 tableSelectionView.setDocumentTitle(documentTitle);

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

159 }

160 };

161 final String localeID = Utils.getCurrentLocaleID();

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

163

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

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

166 @Override

167 public void onFailure(final Throwable caught) {

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

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

170 }

171

172 @Override

173 public void onSuccess(final Reports result) {

174 tableSelectionView.setReportList(result);

175 }

176 };

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

178

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

180 tableSelectionView.setQuickFindText(quickFind);

181 }

182

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

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

185 public void setPlace(final HasTablePlace place) {

186 documentID = place.getDocumentID();

187 tableName = place.getTableName();

188

189 try {

190 final HasRecordsPlace asPlace = (HasRecordsPlace) place;

191 quickFind = asPlace.getQuickFind();

192 } catch (final ClassCastException ex) {

193 quickFind = "";

194 }

195

196 final TableSelectionView tableSelectionView = clientFactory.getTableSelectionView();

197

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

199 if (place instanceof DetailsPlace) {

200 tableSelectionView.setBackLinkVisible(true);

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

202 } else if (place instanceof ListPlace) {

203 tableSelectionView.setBackLinkVisible(false);

204 }

205

206 fillView(tableSelectionView);

207 }

208

209 private void clearView() {

210 clientFactory.getTableSelectionView().clear();

211

212 if (tableChangeHandlerRegistration != null) {

213 tableChangeHandlerRegistration.removeHandler();

214 tableChangeHandlerRegistration = null;

215 }

216

217 if (quickFindChangeHandlerRegistration != null) {

218 quickFindChangeHandlerRegistration.removeHandler();

219 quickFindChangeHandlerRegistration = null;

220 }

221

222 if (localeChangeHandlerRegistration != null) {

223 localeChangeHandlerRegistration.removeHandler();

224 localeChangeHandlerRegistration = null;

225 }

226 }

227

228 /*

229 * (non-Javadoc)

230 *

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

232 */

233 @Override

234 public void onCancel() {

235 clearView();

236 }

237

238 /*

239 * (non-Javadoc)

240 *

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

242 */

243 @Override

244 public void onStop() {

245 clearView();

246 }

247

248 /*

249 * (non-Javadoc)

250 *

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

252 */

253 @Override

254 public void goTo(final Place place) {

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

256 }

257

258 }