Replace deprecated DOM.setElementAttribute().

[online-glom:gwt-glom.git] / src / main / java / org / glom / web / client / OnlineGlom.java

/*
 * Copyright (C) 2010, 2011 Openismus GmbH
 *
 * This file is part of GWT-Glom.
 *
 * GWT-Glom is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 *
 * GWT-Glom is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with GWT-Glom.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.glom.web.client;

import org.glom.web.client.mvp.AppPlaceHistoryMapper;
import org.glom.web.client.mvp.DataActivityMapper;
import org.glom.web.client.mvp.DocumentSelectionActivityMapper;
import org.glom.web.client.mvp.TableSelectionActivityMapper;
import com.google.gwt.activity.shared.ActivityManager;
import com.google.gwt.activity.shared.ActivityMapper;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.Style.Overflow;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.place.shared.Place;
import com.google.gwt.place.shared.PlaceController;
import com.google.gwt.place.shared.PlaceHistoryHandler;
import com.google.gwt.user.client.ui.AcceptsOneWidget;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.IsWidget;
import com.google.gwt.user.client.ui.LayoutPanel;
import com.google.gwt.user.client.ui.RootLayoutPanel;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.Widget;
import com.google.web.bindery.event.shared.EventBus;

/**
 * Entry point classes define <code>onModuleLoad()</code>.
 */
public class OnlineGlom implements EntryPoint {

        /*
         * Some of these are protected, rather than private, so that GwtTestOnlineGlom can access them.
         */
        private final LayoutPanel rootLayoutPanel = RootLayoutPanel.get();
        private final FlowPanel layoutPanel = new FlowPanel();
        protected SimplePanel docSelectionPanel = new SimplePanel(); //Or document login.
        protected SimplePanel dataPanel = new SimplePanel();
        protected SimplePanel tableSelectionPanel = new SimplePanel();

        protected ClientFactory clientFactory;

        AcceptsOneWidget docSelectionDisplay = new AcceptsOneWidget() {
                @Override
                public void setWidget(final IsWidget activityWidget) {
                        final Widget widget = Widget.asWidgetOrNull(activityWidget);
                        docSelectionPanel.setVisible(widget != null);
                        docSelectionPanel.setWidget(widget);
                }
        };

        AcceptsOneWidget dataDisplay = new AcceptsOneWidget() {
                @Override
                public void setWidget(final IsWidget activityWidget) {
                        final Widget widget = Widget.asWidgetOrNull(activityWidget);
                        dataPanel.setVisible(widget != null);
                        dataPanel.setWidget(widget);
                }
        };

        AcceptsOneWidget tableSelectionDisplay = new AcceptsOneWidget() {
                @Override
                public void setWidget(final IsWidget activityWidget) {
                        final Widget widget = Widget.asWidgetOrNull(activityWidget);
                        tableSelectionPanel.setVisible(widget != null);
                        tableSelectionPanel.setWidget(widget);
                }
        };

        /**
         * This is the entry point method.
         */
        @Override
        public void onModuleLoad() {

                rootLayoutPanel.add(layoutPanel);
                rootLayoutPanel.setWidgetVisible(layoutPanel, true);

                // TODO This value should really come from the css for the body tag but reading the value using
                // RootPanel.getBodyElement().getStyle().getMargin() doesn't seem to be working.
                layoutPanel.getElement().getStyle().setMargin(1, Unit.EM);

                // add the display regions to the main layout panel
                layoutPanel.add(docSelectionPanel);
                layoutPanel.add(tableSelectionPanel);
                layoutPanel.add(dataPanel);

                // set some properties for the display regions
                // The 'overflow: visible' adds a horizontal scrollbar when the content is larger than the browser window.
                // TODO: It would be better to just have the regular browser scrollbars, but for some reason they
                // are not shown.
                rootLayoutPanel.getWidgetContainerElement(layoutPanel).getStyle().setOverflow(Overflow.VISIBLE);

                // hide the display regions for the list and details places because they are not shown by default
                tableSelectionPanel.setVisible(false);
                dataPanel.setVisible(false);

                // We might, in future, use different ClientFactory implementations to create different views
                // for different browser types (such as mobile), so we use GWT.create() to have deferred binding.
                // See http://code.google.com/webtoolkit/doc/latest/DevGuideMvpActivitiesAndPlaces.html
                // which describes how to do this via our OnlineGlom.gwt.xml file.
                clientFactory = GWT.create(ClientFactory.class);
                final EventBus eventBus = clientFactory.getEventBus();
                final PlaceController placeController = clientFactory.getPlaceController();

                // Activity manager for the data display region (list or details view).
                final ActivityMapper dataActivityMapper = new DataActivityMapper(clientFactory);
                final ActivityManager dataActivityManager = new ActivityManager(dataActivityMapper, eventBus);
                dataActivityManager.setDisplay(dataDisplay);

                // Activity manager for the document selection display region.
                final ActivityMapper docSelectionActivityMapper = new DocumentSelectionActivityMapper(clientFactory);
                final ActivityManager docSelectionActivityManager = new ActivityManager(docSelectionActivityMapper, eventBus);
                docSelectionActivityManager.setDisplay(docSelectionDisplay);

                // Activity manager for the table selection display region.
                final ActivityMapper tableSelectionActivityMapper = new TableSelectionActivityMapper(clientFactory);
                final ActivityManager tableSelectionActivityManager = new ActivityManager(tableSelectionActivityMapper,
                                eventBus);
                tableSelectionActivityManager.setDisplay(tableSelectionDisplay);

                // Start PlaceHistoryHandler with our PlaceHistoryMapper.
                final AppPlaceHistoryMapper historyMapper = GWT.create(AppPlaceHistoryMapper.class);
                final PlaceHistoryHandler historyHandler = new PlaceHistoryHandler(historyMapper);
                
                Place defaultPlace = null;
                if(placeController instanceof PlaceControllerExt) {
                        PlaceControllerExt ext = (PlaceControllerExt)placeController;
                        defaultPlace = ext.getDefaultPlace();
                }
                historyHandler.register(placeController, eventBus, defaultPlace);

                // Goes to the place represented on the URL or the default place.
                historyHandler.handleCurrentHistory();
        }
}