EditableEpisodeListWidget.java

/**
 *  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.widget;

import java.util.List;

import com.acme.gwt.shared.TvEpisodeProxy;
import com.colinalworth.celltable.columns.client.Columns;
import com.colinalworth.celltable.columns.client.HasDataFlushableEditor;
import com.colinalworth.celltable.columns.client.converters.IntegerConverter;
import com.google.gwt.cell.client.EditTextCell;
import com.google.gwt.core.client.GWT;
import com.google.gwt.editor.client.Editor;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.uibinder.client.UiHandler;
import com.google.gwt.user.cellview.client.CellTable;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.Widget;
import com.google.web.bindery.requestfactory.gwt.client.HasRequestContext;
import com.google.web.bindery.requestfactory.shared.RequestContext;

/**
 * Facilitates editing episode info inline, not requiring any list, focus, edit, save, list cycle.
 * Also shows off the CellTable-Tools, for better or worse.
 * 
 * 
 * @author colin
 */
public class EditableEpisodeListWidget extends Composite
		implements
			Editor<List<TvEpisodeProxy>>, HasRequestContext<List<TvEpisodeProxy>>{

	private static Binder uiBinder = GWT.create(Binder.class);

	interface Binder extends UiBinder<Widget, EditableEpisodeListWidget> {
	}

	interface EpisodeColumns extends Columns<TvEpisodeProxy> {
		@Header("Season")
		@Editable
		@ConvertedWith(IntegerConverter.class)
		EditTextCell season();

		@Header("Episode")
		@Editable
		@ConvertedWith(IntegerConverter.class)
		EditTextCell episodeNumber();

		@Header("Name")
		@Editable
		EditTextCell name();
	}

	private EpisodeColumns columns = GWT.create(EpisodeColumns.class);
	@Path("")
	HasDataFlushableEditor<TvEpisodeProxy> listEd;
	@UiField(provided = true)
	CellTable<TvEpisodeProxy> list = new CellTable<TvEpisodeProxy>();
	private RequestContext context;

	public EditableEpisodeListWidget() {
		listEd = HasDataFlushableEditor.of(list);
		columns.configure(list, listEd);

		initWidget(uiBinder.createAndBindUi(this));
	}
	
	@Override
	public void setRequestContext(RequestContext ctx) {
		// This is a cheating way to not need access to the presenter
		this.context = ctx;
	}

	@UiHandler("addBtn")
	void onAddClicked(ClickEvent event) {
		TvEpisodeProxy newEpisode = context.create(TvEpisodeProxy.class);
		newEpisode.setEpisodeNumber(0);
		newEpisode.setName("");
		newEpisode.setSeason(0);
		listEd.getList().add(newEpisode);
	}
}