Make the TableSelector header match the mockup.

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

/*
 * Copyright (C) 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.ui;

import java.util.ArrayList;

import org.glom.web.client.place.ListPlace;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.HasChangeHandlers;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.ui.Anchor;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.ListBox;

/**
 * @author Ben Konrath <ben@bagu.org>
 */
public class TableSelectionViewImpl extends Composite implements TableSelectionView {

        ListBox tableChooser = new ListBox();
        Anchor backLink = new Anchor("Back to List");
        private Presenter presenter;
        private HandlerRegistration backLinkHandlerReg;

        public TableSelectionViewImpl() {
                tableChooser.setStyleName("tablechooser");
                backLink.setStyleName("backlink");

                // empty click handler to avoid having to check for if the HandlerRegistration is null in setBackLink()
                backLinkHandlerReg = backLink.addClickHandler(new ClickHandler() {
                        @Override
                        public void onClick(ClickEvent event) {
                        }
                });

                // the main container widget
                FlowPanel mainPanel = new FlowPanel();
                DOM.setElementAttribute(mainPanel.getElement(), "id", "headbox");

                mainPanel.add(backLink);
                mainPanel.add(tableChooser);

                initWidget(mainPanel);
        }

        @Override
        public void setTableSelection(ArrayList<String> names, ArrayList<String> titles) {
                tableChooser.clear();
                for (int i = 0; i < names.size(); i++) {
                        tableChooser.addItem(titles.get(i), names.get(i));
                }
        }

        @Override
        public void setSelectedTableName(String tableName) {
                for (int i = 0; i < tableChooser.getItemCount(); i++) {
                        if (tableName.equals(tableChooser.getValue(i))) {
                                tableChooser.setSelectedIndex(i);
                                break;
                        }
                }

        }

        @Override
        public HasChangeHandlers getTableSelector() {
                return tableChooser;
        }

        @Override
        public String getSelectedTable() {
                int selectedIndex = tableChooser.getSelectedIndex();
                return selectedIndex < 0 ? "" : tableChooser.getValue(selectedIndex);
        }

        public void setBackLink(final String documentID, final String tableName) {
                backLinkHandlerReg.removeHandler();
                backLinkHandlerReg = backLink.addClickHandler(new ClickHandler() {
                        @Override
                        public void onClick(ClickEvent event) {
                                presenter.goTo(new ListPlace(documentID, tableName));
                        }
                });
        }

        @Override
        public void clear() {
                tableChooser.clear();
        }

        @Override
        public void setBackLinkVisible(boolean visible) {
                backLink.setVisible(visible);
        }

        @Override
        public void setPresenter(Presenter presenter) {
                this.presenter = presenter;
        }
}