gitorious.org Git - online-glom:gwt-glom.git/blob - src/main/java/org/glom/web/client/OnlineGlom.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;

21

22 import org.glom.web.client.mvp.AppPlaceHistoryMapper;

23 import org.glom.web.client.mvp.DataActivityMapper;

24 import org.glom.web.client.mvp.DocumentSelectionActivityMapper;

25 import org.glom.web.client.mvp.TableSelectionActivityMapper;

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

27

28 import com.google.gwt.activity.shared.ActivityManager;

29 import com.google.gwt.activity.shared.ActivityMapper;

30 import com.google.gwt.core.client.EntryPoint;

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

32 import com.google.gwt.dom.client.Style.Overflow;

33 import com.google.gwt.dom.client.Style.Unit;

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

35 import com.google.gwt.place.shared.PlaceController;

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

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

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

39 import com.google.gwt.user.client.ui.LayoutPanel;

40 import com.google.gwt.user.client.ui.RootLayoutPanel;

41 import com.google.gwt.user.client.ui.SimplePanel;

42 import com.google.gwt.user.client.ui.Widget;

43 import com.google.web.bindery.event.shared.EventBus;

44

45 /**

46 * Entry point classes define <code>onModuleLoad()</code>.

47 */

48 public class OnlineGlom implements EntryPoint {

49

50 /*

51 * Some of these are protected, rather than private, so that GwtTestOnlineGlom can access them.

52 */

53 private Place defaultPlace = new DocumentSelectionPlace();

54 private LayoutPanel layoutPanel = RootLayoutPanel.get();

55 protected SimplePanel docSelectionPanel = new SimplePanel();

56 protected SimplePanel dataPanel = new SimplePanel();

57 protected SimplePanel tableSelectionPanel = new SimplePanel();

58

59 protected ClientFactory clientFactory;

60

61 AcceptsOneWidget docSelectionDisplay = new AcceptsOneWidget() {

62 @Override

63 public void setWidget(IsWidget activityWidget) {

64 Widget widget = Widget.asWidgetOrNull(activityWidget);

65 layoutPanel.setWidgetVisible(docSelectionPanel, widget != null);

66 docSelectionPanel.setWidget(widget);

67 }

68 };

69

70 AcceptsOneWidget dataDisplay = new AcceptsOneWidget() {

71 @Override

72 public void setWidget(IsWidget activityWidget) {

73 Widget widget = Widget.asWidgetOrNull(activityWidget);

74 layoutPanel.setWidgetVisible(dataPanel, widget != null);

75 dataPanel.setWidget(widget);

76 }

77 };

78

79 AcceptsOneWidget tableSelectionDisplay = new AcceptsOneWidget() {

80 @Override

81 public void setWidget(IsWidget activityWidget) {

82 Widget widget = Widget.asWidgetOrNull(activityWidget);

83 layoutPanel.setWidgetVisible(tableSelectionPanel, widget != null);

84 tableSelectionPanel.setWidget(widget);

85 }

86 };

87

88 /**

89 * This is the entry point method.

90 */

91 @Override

92 public void onModuleLoad() {

93

94 // TODO This value should really come from the css for the body tag but reading the value using

95 // RootPanel.getBodyElement().getStyle().getMargin() doesn't seem to be working.

96 layoutPanel.getElement().getStyle().setMargin(1, Unit.EM);

97

98 // add the display regions to the main layout panel

99 layoutPanel.add(docSelectionPanel);

100 layoutPanel.add(tableSelectionPanel);

101 layoutPanel.add(dataPanel);

102

103 // set some properties for the display regions

104 // The 'overflow: visible' adds a horizontal scrollbar when the list view table is larger than the browser

105 // window.

106 layoutPanel.getWidgetContainerElement(dataPanel).getStyle().setOverflow(Overflow.VISIBLE);

107

108 // set the layout for the list and details places

109 // TODO Figure out a way to make the layout without absolute positioning. Right now changes to the vertical

110 // height of the table selector (i.e. CSS changes that affect the vertical height) require the

111 // tableSelectionSize to be updated.

112 double tableSelectionSize = 4.7;

113 layoutPanel.setWidgetTopHeight(tableSelectionPanel, 0, Unit.PCT, tableSelectionSize, Unit.EM);

114 layoutPanel.setWidgetTopHeight(dataPanel, tableSelectionSize, Unit.EM, 100, Unit.PCT);

115

116 // hide the display regions for the list and details places because they are not shown by default

117 layoutPanel.setWidgetVisible(tableSelectionPanel, false);

118 layoutPanel.setWidgetVisible(dataPanel, false);

119

120 // We might, in future, use different ClientFactory implementations to create different views

121 // for different browser types (such as mobile), so we use GWT.create() to have deferred binding.

122 // See http://code.google.com/webtoolkit/doc/latest/DevGuideMvpActivitiesAndPlaces.html

123 // which describes how to do this via our OnlineGlom.gwt.xml file.

124 clientFactory = GWT.create(ClientFactory.class);

125 EventBus eventBus = clientFactory.getEventBus();

126 PlaceController placeController = clientFactory.getPlaceController();

127

128 // Activity manager for the data display region (list or details view).

129 ActivityMapper dataActivityMapper = new DataActivityMapper(clientFactory);

130 ActivityManager dataActivityManager = new ActivityManager(dataActivityMapper, eventBus);

131 dataActivityManager.setDisplay(dataDisplay);

132

133 // Activity manager for the document selection display region.

134 ActivityMapper docSelectionActivityMapper = new DocumentSelectionActivityMapper(clientFactory);

135 ActivityManager docSelectionActivityManager = new ActivityManager(docSelectionActivityMapper, eventBus);

136 docSelectionActivityManager.setDisplay(docSelectionDisplay);

137

138 // Activity manager for the table selection display region.

139 ActivityMapper tableSelectionActivityMapper = new TableSelectionActivityMapper(clientFactory);

140 ActivityManager tableSelectionActivityManager = new ActivityManager(tableSelectionActivityMapper, eventBus);

141 tableSelectionActivityManager.setDisplay(tableSelectionDisplay);

142

143 // Start PlaceHistoryHandler with our PlaceHistoryMapper.

144 AppPlaceHistoryMapper historyMapper = GWT.create(AppPlaceHistoryMapper.class);

145 PlaceHistoryHandler historyHandler = new PlaceHistoryHandler(historyMapper);

146 historyHandler.register(placeController, eventBus, defaultPlace);

147

148 // Goes to the place represented on the URL or the default place.

149 historyHandler.handleCurrentHistory();

150 }

151 }