GwtTestOnlineGlom: Test a little more.
[online-glom:gwt-glom.git] / src / main / java / org / glom / web / client / OnlineGlom.java
1 /*
2  * Copyright (C) 2010, 2011 Openismus GmbH
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         /* Some of these are protected, rather than private,
51          * 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         AcceptsOneWidget docSelectionDisplay = new AcceptsOneWidget() {
60                 @Override
61                 public void setWidget(IsWidget activityWidget) {
62                         Widget widget = Widget.asWidgetOrNull(activityWidget);
63                         layoutPanel.setWidgetVisible(docSelectionPanel, widget != null);
64                         docSelectionPanel.setWidget(widget);
65                 }
66         };
67
68         AcceptsOneWidget dataDisplay = new AcceptsOneWidget() {
69                 @Override
70                 public void setWidget(IsWidget activityWidget) {
71                         Widget widget = Widget.asWidgetOrNull(activityWidget);
72                         layoutPanel.setWidgetVisible(dataPanel, widget != null);
73                         dataPanel.setWidget(widget);
74                 }
75         };
76
77         AcceptsOneWidget tableSelectionDisplay = new AcceptsOneWidget() {
78                 @Override
79                 public void setWidget(IsWidget activityWidget) {
80                         Widget widget = Widget.asWidgetOrNull(activityWidget);
81                         layoutPanel.setWidgetVisible(tableSelectionPanel, widget != null);
82                         tableSelectionPanel.setWidget(widget);
83                 }
84         };
85
86         /**
87          * This is the entry point method.
88          */
89         @Override
90         public void onModuleLoad() {
91
92                 // TODO This value should really come from the css for the body tag but reading the value using
93                 // RootPanel.getBodyElement().getStyle().getMargin() doesn't seem to be working.
94                 layoutPanel.getElement().getStyle().setMargin(1, Unit.EM);
95
96                 // add the display regions to the main layout panel
97                 layoutPanel.add(docSelectionPanel);
98                 layoutPanel.add(tableSelectionPanel);
99                 layoutPanel.add(dataPanel);
100
101                 // set some properties for the display regions
102                 // The 'overflow: visible' adds a horizontal scrollbar when the list view table is larger than the browser
103                 // window.
104                 layoutPanel.getWidgetContainerElement(dataPanel).getStyle().setOverflow(Overflow.VISIBLE);
105
106                 // set the layout for the list and details places
107                 // TODO Figure out a way to make the layout without absolute positioning. Right now changes to the vertical
108                 // height of the table selector (i.e. CSS changes that affect the vertical height) require the
109                 // tableSelectionSize to be updated.
110                 double tableSelectionSize = 4.7;
111                 layoutPanel.setWidgetTopHeight(tableSelectionPanel, 0, Unit.PCT, tableSelectionSize, Unit.EM);
112                 layoutPanel.setWidgetTopHeight(dataPanel, tableSelectionSize, Unit.EM, 100, Unit.PCT);
113
114                 // hide the display regions for the list and details places because they are not shown by default
115                 layoutPanel.setWidgetVisible(tableSelectionPanel, false);
116                 layoutPanel.setWidgetVisible(dataPanel, false);
117
118                 // We might, in future, use different ClientFactory implementations to create different views
119                 // for different browser types (such as mobile), so we use GWT.create() to have deferred binding.
120                 // See http://code.google.com/webtoolkit/doc/latest/DevGuideMvpActivitiesAndPlaces.html
121                 // which describes how to do this via our OnlineGlom.gwt.xml file.
122                 ClientFactory clientFactory = GWT.create(ClientFactory.class);
123                 EventBus eventBus = clientFactory.getEventBus();
124                 PlaceController placeController = clientFactory.getPlaceController();
125
126                 // Activity manager for the data display region (list or details view).
127                 ActivityMapper dataActivityMapper = new DataActivityMapper(clientFactory);
128                 ActivityManager dataActivityManager = new ActivityManager(dataActivityMapper, eventBus);
129                 dataActivityManager.setDisplay(dataDisplay);
130
131                 // Activity manager for the document selection display region.
132                 ActivityMapper docSelectionActivityMapper = new DocumentSelectionActivityMapper(clientFactory);
133                 ActivityManager docSelectionActivityManager = new ActivityManager(docSelectionActivityMapper, eventBus);
134                 docSelectionActivityManager.setDisplay(docSelectionDisplay);
135
136                 // Activity manager for the table selection display region.
137                 ActivityMapper tableSelectionActivityMapper = new TableSelectionActivityMapper(clientFactory);
138                 ActivityManager tableSelectionActivityManager = new ActivityManager(tableSelectionActivityMapper, eventBus);
139                 tableSelectionActivityManager.setDisplay(tableSelectionDisplay);
140
141                 // Start PlaceHistoryHandler with our PlaceHistoryMapper.
142                 AppPlaceHistoryMapper historyMapper = GWT.create(AppPlaceHistoryMapper.class);
143                 PlaceHistoryHandler historyHandler = new PlaceHistoryHandler(historyMapper);
144                 historyHandler.register(placeController, eventBus, defaultPlace);
145
146                 // Goes to the place represented on the URL or the default place.
147                 historyHandler.handleCurrentHistory();
148         }
149 }