gitorious.org Git - online-glom:gwt-glom.git/blob - src/main/java/org/glom/web/client/activity/ListActivity.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.event.TableChangeEvent;

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

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

27 import org.glom.web.client.ui.AuthenticationPopup;

28 import org.glom.web.client.ui.ListView;

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

30

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

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

33 import com.google.gwt.event.dom.client.ClickEvent;

34 import com.google.gwt.event.dom.client.ClickHandler;

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

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

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

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

39

40 public class ListActivity extends AbstractActivity implements ListView.Presenter {

41

42 private final String documentID;

43 private final String tableName;

44 private final ClientFactory clientFactory;

45 private final ListView listView;

46 private final AuthenticationPopup authenticationPopup;

47

48 public ListActivity(ListPlace place, ClientFactory clientFactory) {

49 this.documentID = place.getDocumentID();

50 this.tableName = place.getTableName();

51 this.clientFactory = clientFactory;

52 listView = clientFactory.getListView();

53 authenticationPopup = clientFactory.getAuthenticationPopup();

54 }

55

56 @Override

57 public void start(AcceptsOneWidget panel, final EventBus eventBus) {

58 // register this class as the presenter

59 listView.setPresenter(this);

60

61 // TODO this should really be it's own Place/Activity

62 // check if the authentication info has been set for the document

63 AsyncCallback<Boolean> isAuthCallback = new AsyncCallback<Boolean>() {

64 public void onFailure(Throwable caught) {

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

66 GWT.log("AsyncCallback Failed: OnlineGlomService.isAuthenticated()");

67 }

68

69 public void onSuccess(Boolean result) {

70 if (!result) {

71 setUpAuthClickHandler(eventBus);

72 authenticationPopup.center();

73 }

74 }

75 };

76 OnlineGlomServiceAsync.Util.getInstance().isAuthenticated(documentID, isAuthCallback);

77

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

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

80 @Override

81 public void onTableChange(final TableChangeEvent event) {

82 goTo(new ListPlace(documentID, event.getNewTableName()));

83 }

84 });

85

86 // populate the cell table with data

87 AsyncCallback<LayoutGroup> callback = new AsyncCallback<LayoutGroup>() {

88 public void onFailure(Throwable caught) {

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

90 GWT.log("AsyncCallback Failed: OnlineGlomService.getListViewLayout()");

91 }

92

93 public void onSuccess(LayoutGroup result) {

94 // TODO check if result.getTableName() is the same as the tableName field. Update it if it's not the

95 // same.

96 listView.setCellTable(documentID, result);

97 }

98 };

99 OnlineGlomServiceAsync.Util.getInstance().getListViewLayout(documentID, tableName, callback);

100

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

102 panel.setWidget(listView.asWidget());

103 }

104

105 private void setUpAuthClickHandler(final EventBus eventBus) {

106 authenticationPopup.setClickOkHandler(new ClickHandler() {

107 @Override

108 public void onClick(ClickEvent event) {

109 authenticationPopup.setTextFieldsEnabled(false);

110 AsyncCallback<Boolean> callback = new AsyncCallback<Boolean>() {

111 @Override

112 public void onFailure(Throwable caught) {

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

114 GWT.log("AsyncCallback Failed: OnlineGlomService.checkAuthentication()");

115 }

116

117 @Override

118 public void onSuccess(Boolean result) {

119 if (result) {

120 authenticationPopup.hide();

121 eventBus.fireEvent(new TableChangeEvent(clientFactory.getTableSelectionView()

122 .getSelectedTableName()));

123 } else {

124 authenticationPopup.setTextFieldsEnabled(true);

125 authenticationPopup.setError();

126 }

127 }

128 };

129 OnlineGlomServiceAsync.Util.getInstance().checkAuthentication(documentID,

130 authenticationPopup.getUsername(), authenticationPopup.getPassword(), callback);

131 }

132

133 });

134 }

135

136 private void clearView() {

137 authenticationPopup.hide();

138 authenticationPopup.clear();

139 listView.clear();

140 }

141

142 /*

143 * (non-Javadoc)

144 *

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

146 */

147 @Override

148 public void onCancel() {

149 clearView();

150 }

151

152 /*

153 * (non-Javadoc)

154 *

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

156 */

157 @Override

158 public void onStop() {

159 clearView();

160 }

161

162 /*

163 * (non-Javadoc)

164 *

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

166 */

167 public void goTo(Place place) {

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

169 }

170

171 }