gitorious.org Git - online-glom:gwt-glom.git/blob - src/main/java/org/glom/web/client/activity/DetailsActivity.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 java.util.ArrayList;

23

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

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

26 import org.glom.web.client.Utils;

27 import org.glom.web.client.event.TableChangeEvent;

28 import org.glom.web.client.event.TableChangeEventHandler;

29 import org.glom.web.client.place.DetailsPlace;

30 import org.glom.web.client.ui.DetailsView;

31 import org.glom.web.client.ui.details.Field;

32 import org.glom.web.client.ui.details.Portal;

33 import org.glom.web.client.ui.details.RelatedListTable;

34 import org.glom.web.shared.DataItem;

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

36 import org.glom.web.shared.layout.LayoutGroup;

37 import org.glom.web.shared.layout.LayoutItemField;

38 import org.glom.web.shared.layout.LayoutItemPortal;

39

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

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

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

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

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

45

46 /**

47 * @author Ben Konrath <ben@bagu.org>

48 */

49 public class DetailsActivity extends AbstractActivity implements DetailsView.Presenter {

50 private final String documentID;

51 private final String tableName;

52 private final String primaryKeyValue;

53 private final ClientFactory clientFactory;

54 private final DetailsView detailsView;

55

56 ArrayList<Field> fields;

57 ArrayList<Portal> portals;

58

59 public DetailsActivity(DetailsPlace place, ClientFactory clientFactory) {

60 this.documentID = place.getDocumentID();

61 this.tableName = place.getTableName();

62 this.primaryKeyValue = place.getPrimaryKeyValue();

63 this.clientFactory = clientFactory;

64 detailsView = clientFactory.getDetailsView();

65 }

66

67 /*

68 * (non-Javadoc)

69 *

70 * @see com.google.gwt.activity.shared.Activity#start(com.google.gwt.user.client.ui.AcceptsOneWidget,

71 * com.google.gwt.event.shared.EventBus)

72 */

73 @Override

74 public void start(AcceptsOneWidget panel, EventBus eventBus) {

75 // register this class as the presenter

76 detailsView.setPresenter(this);

77

78 // TODO here's where we should check for database authentication - see ListActivity.start() for how to do this

79

80 // set the change handler for the table selection widget

81 eventBus.addHandler(TableChangeEvent.TYPE, new TableChangeEventHandler() {

82 @Override

83 public void onTableChange(final TableChangeEvent event) {

84 goTo(new DetailsPlace(documentID, event.getTableName(), ""));

85 }

86 });

87

88 // get the layout and data for the DetailsView

89 AsyncCallback<DetailsLayoutAndData> callback = new AsyncCallback<DetailsLayoutAndData>() {

90 public void onFailure(Throwable caught) {

91 // FIXME: need to deal with failure

92 System.out.println("AsyncCallback Failed: OnlineGlomService.getDetailsLayoutAndData()");

93 }

94

95 @Override

96 public void onSuccess(DetailsLayoutAndData result) {

97

98 // create the layout and get the array of layout item fields, data labels and layout item portals

99 for (LayoutGroup layoutGroup : result.getLayout()) {

100 detailsView.addGroup(layoutGroup);

101 }

102 fields = detailsView.getFields();

103 portals = detailsView.getPortals();

104

105 // set the data

106 DataItem[] data = result.getData();

107 if (data == null)

108 return;

109

110 // FIXME create proper client side logging

111 if (data.length != fields.size())

112 System.out.println("Warning: The number of data items doesn't match the number of data fields.");

113

114 for (int i = 0; i < Math.min(fields.size(), data.length); i++) {

115 Field field = fields.get(i);

116 if (data[i] != null) {

117

118 // set the field data

119 field.setData(data[i]);

120

121 // see if there are any related lists that need to be setup

122 for (Portal portal : portals) {

123 LayoutItemField layoutItemField = field.getLayoutItem();

124 LayoutItemPortal layoutItemPortal = portal.getLayoutItem();

125 if (layoutItemField.getName().equals(layoutItemPortal.getFromField())) {

126 String foreignKeyValue = Utils.getKeyValueStringForQuery(layoutItemField.getType(),

127 data[i]);

128 if (foreignKeyValue == null)

129 continue;

130 RelatedListTable relatedListTable = new RelatedListTable(documentID, layoutItemPortal,

131 foreignKeyValue);

132 portal.setContents(relatedListTable);

133 setRowCountForRelatedListTable(relatedListTable, layoutItemPortal.getName(),

134 foreignKeyValue);

135 }

136 }

137 }

138 }

139

140 }

141 };

142 OnlineGlomServiceAsync.Util.getInstance().getDetailsLayoutAndData(documentID, tableName, primaryKeyValue,

143 callback);

144

145 // indicate that the view is ready to be displayed

146 panel.setWidget(detailsView.asWidget());

147 }

148

149 // sets the row count for the related list table

150 private void setRowCountForRelatedListTable(final RelatedListTable relatedListTable, String relationshipName,

151 String foreignKeyValue) {

152 AsyncCallback<Integer> callback = new AsyncCallback<Integer>() {

153 public void onFailure(Throwable caught) {

154 // FIXME: need to deal with failure

155 System.out.println("AsyncCallback Failed: OnlineGlomService.getRelatedListRowCount()");

156 }

157

158 @Override

159 public void onSuccess(Integer result) {

160 relatedListTable.setRowCount(result.intValue());

161 }

162 };

163

164 OnlineGlomServiceAsync.Util.getInstance().getRelatedListRowCount(documentID, tableName, relationshipName,

165 foreignKeyValue, callback);

166 }

167

168 /*

169 * (non-Javadoc)

170 *

171 * @see com.google.gwt.activity.shared.Activity#onCancel()

172 */

173 @Override

174 public void onCancel() {

175 detailsView.clear();

176 }

177

178 /*

179 * (non-Javadoc)

180 *

181 * @see com.google.gwt.activity.shared.Activity#onStop()

182 */

183 @Override

184 public void onStop() {

185 detailsView.clear();

186 }

187

188 /*

189 * (non-Javadoc)

190 *

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

192 */

193 @Override

194 public void goTo(Place place) {

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

196 }

197

198 }