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 private Place defaultPlace = new DocumentSelectionPlace();

50 private LayoutPanel layoutPanel = RootLayoutPanel.get();

51 private SimplePanel docSelectionPanel = new SimplePanel();

52 private SimplePanel dataPanel = new SimplePanel();

53 private SimplePanel tableSelectionPanel = new SimplePanel();

54

55 AcceptsOneWidget docSelectionDisplay = new AcceptsOneWidget() {

56 @Override

57 public void setWidget(IsWidget activityWidget) {

58 Widget widget = Widget.asWidgetOrNull(activityWidget);

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

60 docSelectionPanel.setWidget(widget);

61 }

62 };

63

64 AcceptsOneWidget dataDisplay = new AcceptsOneWidget() {

65 @Override

66 public void setWidget(IsWidget activityWidget) {

67 Widget widget = Widget.asWidgetOrNull(activityWidget);

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

69 dataPanel.setWidget(widget);

70 }

71 };

72

73 AcceptsOneWidget tableSelectionDisplay = new AcceptsOneWidget() {

74 @Override

75 public void setWidget(IsWidget activityWidget) {

76 Widget widget = Widget.asWidgetOrNull(activityWidget);

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

78 tableSelectionPanel.setWidget(widget);

79 }

80 };

81

82 /**

83 * This is the entry point method.

84 */

85 @Override

86 public void onModuleLoad() {

87

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

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

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

91

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

93 layoutPanel.add(docSelectionPanel);

94 layoutPanel.add(tableSelectionPanel);

95 layoutPanel.add(dataPanel);

96

97 // set some properties for the display regions

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

99 // window.

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

101

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

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

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

105 // tableSelectionSize to be updated.

106 double tableSelectionSize = 4.7;

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

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

109

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

111 layoutPanel.setWidgetVisible(tableSelectionPanel, false);

112 layoutPanel.setWidgetVisible(dataPanel, false);

113

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

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

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

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

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

119 EventBus eventBus = clientFactory.getEventBus();

120 PlaceController placeController = clientFactory.getPlaceController();

121

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

123 ActivityMapper dataActivityMapper = new DataActivityMapper(clientFactory);

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

125 dataActivityManager.setDisplay(dataDisplay);

126

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

128 ActivityMapper docSelectionActivityMapper = new DocumentSelectionActivityMapper(clientFactory);

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

130 docSelectionActivityManager.setDisplay(docSelectionDisplay);

131

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

133 ActivityMapper tableSelectionActivityMapper = new TableSelectionActivityMapper(clientFactory);

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

135 tableSelectionActivityManager.setDisplay(tableSelectionDisplay);

136

137 // Start PlaceHistoryHandler with our PlaceHistoryMapper.

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

139 PlaceHistoryHandler historyHandler = new PlaceHistoryHandler(historyMapper);

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

141

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

143 historyHandler.handleCurrentHistory();

144 }

145 }