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.StringUtils;

23 import org.glom.web.client.ClientFactory;

24 import org.glom.web.client.OnlineGlomServiceAsync;

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

117 Window.Location.assign(newURL);

118

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

120 // update themselves.

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

122 }

123 });

124

125 fillView(tableSelectionView);

126

127 // we're done, set the widget

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

129 }

130

131 private void fillView(final TableSelectionView tableSelectionView) {

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

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

134 @Override

135 public void onFailure(final Throwable caught) {

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

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

138 }

139

140 @Override

141 public void onSuccess(final DocumentInfo result) {

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

143

144 if (StringUtils.isEmpty(tableName)) {

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

146 }

147

148 tableSelectionView.setSelectedTableName(tableName);

149

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

151

152 final String localeID = Utils.getCurrentLocaleID();

153 tableSelectionView.setSelectedLocale(localeID);

154

155 documentTitle = result.getTitle();

156 tableSelectionView.setDocumentTitle(documentTitle);

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

158 }

159 };

160 final String localeID = Utils.getCurrentLocaleID();

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

162

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

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

165 @Override

166 public void onFailure(final Throwable caught) {

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

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

169 }

170

171 @Override

172 public void onSuccess(final Reports result) {

173 tableSelectionView.setReportList(result);

174 }

175 };

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

177

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

179 tableSelectionView.setQuickFindText(quickFind);

180 }

181

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

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

184 public void setPlace(final HasTablePlace place) {

185 documentID = place.getDocumentID();

186 tableName = place.getTableName();

187

188 try {

189 final HasRecordsPlace asPlace = (HasRecordsPlace) place;

190 quickFind = asPlace.getQuickFind();

191 } catch (final ClassCastException ex) {

192 quickFind = "";

193 }

194

195 final TableSelectionView tableSelectionView = clientFactory.getTableSelectionView();

196

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

198 if (place instanceof DetailsPlace) {

199 tableSelectionView.setBackLinkVisible(true);

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

201 } else if (place instanceof ListPlace) {

202 tableSelectionView.setBackLinkVisible(false);

203 }

204

205 fillView(tableSelectionView);

206 }

207

208 private void clearView() {

209 clientFactory.getTableSelectionView().clear();

210

211 if (tableChangeHandlerRegistration != null) {

212 tableChangeHandlerRegistration.removeHandler();

213 tableChangeHandlerRegistration = null;

214 }

215

216 if (quickFindChangeHandlerRegistration != null) {

217 quickFindChangeHandlerRegistration.removeHandler();

218 quickFindChangeHandlerRegistration = null;

219 }

220

221 if (localeChangeHandlerRegistration != null) {

222 localeChangeHandlerRegistration.removeHandler();

223 localeChangeHandlerRegistration = null;

224 }

225 }

226

227 /*

228 * (non-Javadoc)

229 *

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

231 */

232 @Override

233 public void onCancel() {

234 clearView();

235 }

236

237 /*

238 * (non-Javadoc)

239 *

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

241 */

242 @Override

243 public void onStop() {

244 clearView();

245 }

246

247 /*

248 * (non-Javadoc)

249 *

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

251 */

252 @Override

253 public void goTo(final Place place) {

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

255 }

256

257 }