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.event.TableChangeEvent;

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

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

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

28 import org.glom.web.shared.GlomDocument;

29

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

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

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

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

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

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

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

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

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

39

40 /**

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

42 *

43 */

44 public class TableSelectionActivity extends AbstractActivity {

45 private final ClientFactory clientFactory;

46 private String documentTitle;

47 private HandlerRegistration changeHandlerRegistration = null;

48

49 public TableSelectionActivity(ListPlace place, ClientFactory clientFactory) {

50 this.documentTitle = place.getDocumentTitle();

51 this.clientFactory = clientFactory;

52 }

53

54 public TableSelectionActivity(DetailsPlace place, ClientFactory clientFactory) {

55 this.documentTitle = place.getDocumentTitle();

56 this.clientFactory = clientFactory;

57 }

58

59 /**

60 * Invoked by the ActivityManager to start a new Activity

61 */

62 @Override

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

64 Window.setTitle("Online Glom - " + documentTitle);

65

66 final TableSelectionView tableSelectionView = clientFactory.getTableSelectionView();

67

68 HasChangeHandlers tableSelector = tableSelectionView.getTableSelector();

69

70 changeHandlerRegistration = tableSelector.addChangeHandler(new ChangeHandler() {

71 @Override

72 public void onChange(ChangeEvent event) {

73 eventBus.fireEvent(new TableChangeEvent(tableSelectionView.getSelectedTable()));

74 }

75 });

76

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

78 AsyncCallback<GlomDocument> callback = new AsyncCallback<GlomDocument>() {

79 public void onFailure(Throwable caught) {

80 // FIXME: need to deal with failure

81 System.out.println("AsyncCallback Failed: OnlineGlomService.getGlomDocument()");

82 }

83

84 public void onSuccess(GlomDocument result) {

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

86 tableSelectionView.setTableSelectedIndex(result.getDefaultTableIndex());

87 }

88 };

89 OnlineGlomServiceAsync.Util.getInstance().getGlomDocument(documentTitle, callback);

90

91 // we're done, set the widget

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

93 }

94

95 private void clearView() {

96 clientFactory.getTableSelectionView().clear();

97 if (changeHandlerRegistration != null) {

98 changeHandlerRegistration.removeHandler();

99 changeHandlerRegistration = null;

100 }

101 }

102

103 /*

104 * (non-Javadoc)

105 *

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

107 */

108 @Override

109 public void onCancel() {

110 clearView();

111 }

112

113 /*

114 * (non-Javadoc)

115 *

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

117 */

118 @Override

119 public void onStop() {

120 clearView();

121 }

122 }