com.acme.gwt.client.presenter.CreateShowPresenter.java Source code

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Here is the source code for com.acme.gwt.client.presenter.CreateShowPresenter.java

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/**
 *  Copyright 2011 Colin Alworth
 * 
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */
package com.acme.gwt.client.presenter;

import java.util.ArrayList;
import java.util.List;

import com.acme.gwt.client.TvGuideRequestFactory;
import com.acme.gwt.client.place.ShowEditorPlace;
import com.acme.gwt.client.view.ShowEditorView;
import com.acme.gwt.shared.TvEpisodeProxy;
import com.acme.gwt.shared.TvSetupRequest;
import com.acme.gwt.shared.TvShowProxy;
import com.google.gwt.activity.shared.AbstractActivity;
import com.google.gwt.event.shared.EventBus;
import com.google.gwt.place.shared.PlaceController;
import com.google.gwt.user.client.History;
import com.google.gwt.user.client.ui.AcceptsOneWidget;
import com.google.inject.Inject;
import com.google.web.bindery.requestfactory.shared.Receiver;
import com.google.web.bindery.requestfactory.shared.RequestContext;

/**
 * Reuses the show editor view to edit newly created shows.
 *
 */
public class CreateShowPresenter extends AbstractActivity implements ShowEditorView.Presenter {
    @Inject
    TvGuideRequestFactory rf;
    @Inject
    ShowEditorView view;
    @Inject
    PlaceController placeController;

    @Override
    public void start(AcceptsOneWidget panel, EventBus eventBus) {
        view.setIsSaved(false);
        view.setPresenter(this);

        TvSetupRequest req = rf.makeSetupRequest();
        // make the new object
        TvShowProxy newInstance = req.create(TvShowProxy.class);
        newInstance.setEpisodes(new ArrayList<TvEpisodeProxy>());

        //set up a request to save it, and pass control to the editor
        req.saveShow(newInstance).to(new Receiver<TvShowProxy>() {
            @Override
            public void onSuccess(final TvShowProxy saved) {
                //TODO remove this
                // for now, also adding this to the user's favorites
                rf.makeGuideRequest().getFavoriteShows().fire(new Receiver<List<TvShowProxy>>() {
                    @Override
                    public void onSuccess(List<TvShowProxy> favs) {
                        favs.add(saved);
                        rf.makeGuideRequest().setFavoriteShows(favs).fire();
                    }
                });

                // show the editor
                placeController.goTo(new ShowEditorPlace(saved.stableId()));
            }
        });

        //pass it to the driver and show the view
        view.getEditor().edit(newInstance, req);
        panel.setWidget(view);
    }

    @Override
    public void back() {
        History.back();
    }

    @Override
    public void save() {
        // when saving, complete the save, and pass control to the editor (see start method)
        RequestContext req = view.getEditor().flush();
        if (!view.getEditor().hasErrors()) {
            req.fire();
        }
    }

}