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.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;

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

36

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

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

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

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

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

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

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

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

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

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

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

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

49

50 /**

51 *

52 */

53 public class TableSelectionActivity extends AbstractActivity implements View.Presenter {

54 private final ClientFactory clientFactory;

55 private String documentID;

56 private String documentTitle;

57 private String tableName;

58 private String quickFind;

59 private HandlerRegistration tableChangeHandlerRegistration = null;

60 private HandlerRegistration quickFindChangeHandlerRegistration = null;

61 private HandlerRegistration localeChangeHandlerRegistration = null;

62

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

64 public TableSelectionActivity(final ClientFactory clientFactory) {

65 this.clientFactory = clientFactory;

66 }

67

68 /**

69 * Invoked by the ActivityManager to start a new Activity

70 */

71 @Override

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

73

74 final TableSelectionView tableSelectionView = clientFactory.getTableSelectionView();

75 tableSelectionView.setPresenter(this);

76

77 // For table changes with the tableSelector:

78 final HasChangeHandlers tableSelector = tableSelectionView.getTableSelector();

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

80 @Override

81 public void onChange(final ChangeEvent event) {

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

83 // update themselves.

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

85

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

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

88 }

89 });

90

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

92 final HasChangeHandlers quickFindBox = tableSelectionView.getQuickFindBox();

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

94 @Override

95 public void onChange(final ChangeEvent event) {

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

97 // can

98 // update themselves.

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

100

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

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

103 }

104 });

105

106 // For locale changes with the localeSelector:

107 final HasChangeHandlers localeSelector = tableSelectionView.getLocaleSelector();

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

109 @Override

110 public void onChange(final ChangeEvent event) {

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

112 final String localeID = tableSelectionView.getSelectedLocale();

113 fillView(tableSelectionView);

114

115 final String newURL = Window.Location.createUrlBuilder().setParameter(LocaleInfo.getLocaleQueryParam(), localeID).buildString();

116 Window.Location.assign(newURL);

117

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));

121 }

122 });

123

124 fillView(tableSelectionView);

125

126 // we're done, set the widget

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

128 }

129

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>() {

133 @Override

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()");

137 }

138

139 @Override

140 public void onSuccess(final DocumentInfo result) {

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

142

143 if (StringUtils.isEmpty(tableName)) {

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

145 }

146

147 tableSelectionView.setSelectedTableName(tableName);

148

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

150

151 final String localeID = Utils.getCurrentLocaleID();

152 tableSelectionView.setSelectedLocale(localeID);

153

154 documentTitle = result.getTitle();

155 tableSelectionView.setDocumentTitle(documentTitle);

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

157 }

158 };

159 final String localeID = Utils.getCurrentLocaleID();

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

161

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

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

164 @Override

165 public void onFailure(final Throwable caught) {

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

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

168 }

169

170 @Override

171 public void onSuccess(final Reports result) {

172 tableSelectionView.setReportList(result);

173 }

174 };

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

176

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

178 tableSelectionView.setQuickFindText(quickFind);

179 }

180

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

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

183 public void setPlace(final HasSelectableTablePlace place) {

184 documentID = place.getDocumentID();

185 tableName = place.getTableName();

186

187 try {

188 final ListPlace asPlace = (ListPlace) place;

189 quickFind = asPlace.getQuickFind();

190 } catch (final ClassCastException ex) {

191 quickFind = "";

192 }

193

194 final TableSelectionView tableSelectionView = clientFactory.getTableSelectionView();

195

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

197 if (place instanceof DetailsPlace) {

198 tableSelectionView.setBackLinkVisible(true);

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

200 } else if (place instanceof ListPlace) {

201 tableSelectionView.setBackLinkVisible(false);

202 }

203

204 fillView(tableSelectionView);

205 }

206

207 private void clearView() {

208 clientFactory.getTableSelectionView().clear();

209

210 if (tableChangeHandlerRegistration != null) {

211 tableChangeHandlerRegistration.removeHandler();

212 tableChangeHandlerRegistration = null;

213 }

214

215 if (quickFindChangeHandlerRegistration != null) {

216 quickFindChangeHandlerRegistration.removeHandler();

217 quickFindChangeHandlerRegistration = null;

218 }

219

220 if (localeChangeHandlerRegistration != null) {

221 localeChangeHandlerRegistration.removeHandler();

222 localeChangeHandlerRegistration = null;

223 }

224 }

225

226 /*

227 * (non-Javadoc)

228 *

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

230 */

231 @Override

232 public void onCancel() {

233 clearView();

234 }

235

236 /*

237 * (non-Javadoc)

238 *

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

240 */

241 @Override

242 public void onStop() {

243 clearView();

244 }

245

246 /*

247 * (non-Javadoc)

248 *

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

250 */

251 @Override

252 public void goTo(final Place place) {

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

254 }

255

256 }