/*

 * 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.core.client.GWT;

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.Label;

import com.google.gwt.user.client.ui.ListBox;

import com.google.gwt.user.client.ui.TextBox;

/**

 *

 */

public class TableSelectionViewImpl extends Composite implements TableSelectionView {

	// OnlineGlomConstants.java is generated in the target/ directory,

	// from OnlineGlomConstants.properties

	// by the gwt-maven-plugin's i18n (mvn:i18n) goal.

	private OnlineGlomConstants constants = GWT.create(OnlineGlomConstants.class);

	Label documentTitleLabel = new Label();

	ListBox tablesChooser = new ListBox();

	Label searchLabel = new Label(constants.search());

	TextBox searchTextBox = new TextBox();

	ListBox localesChooser = new ListBox();

	Anchor backLink = new Anchor(constants.backToList());

	private Presenter presenter;

	private HandlerRegistration backLinkHandlerReg;

	public TableSelectionViewImpl() {

		tablesChooser.setStyleName("tableschooser");

		searchLabel.setStyleName("searchlabel"); // TODO: This is tedious.

		searchTextBox.setStyleName("searchtextbox"); // TODO: This is tedious.

		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(final ClickEvent event) {

			}

		});

    final FlowPanel titlebox = new FlowPanel();

		DOM.setElementAttribute(titlebox.getElement(), "id", "titlebox");

		titlebox.add(documentTitleLabel);

		titlebox.add(localesChooser);

		// document title

		// Set a default value for the document title label with the opacity set to 0. The headbox will bounce up and

		// down when retrieving the document title from the server if an empty string is used.

		documentTitleLabel.getElement().getStyle().setOpacity(0);

		documentTitleLabel.setText("A");

		documentTitleLabel.addStyleName("document-title");

		DOM.setElementAttribute(documentTitleLabel.getElement(), "id", "document-title");

		localesChooser.setStyleName("localeschooser"); // TODO: This is tedious.

		// headbox with the table selector

		final FlowPanel headbox = new FlowPanel();

		DOM.setElementAttribute(headbox.getElement(), "id", "headbox");

		headbox.add(tablesChooser);

		headbox.add(searchLabel);

		headbox.add(searchTextBox);

		headbox.add(backLink);

		// the main container widget

		final FlowPanel mainPanel = new FlowPanel();

		mainPanel.add(titlebox);

		mainPanel.add(headbox);

		initWidget(mainPanel);

	}

	@Override

	public void setTableSelection(final ArrayList<String> names, final ArrayList<String> titles) {

		tablesChooser.clear();

		for (int i = 0; i < names.size(); i++) {

			tablesChooser.addItem(titles.get(i), names.get(i));

		}

	}

	@Override

	public void setSelectedTableName(final String tableName) {

		for (int i = 0; i < tablesChooser.getItemCount(); i++) {

			if (tableName.equals(tablesChooser.getValue(i))) {

				tablesChooser.setSelectedIndex(i);

				break;

			}

		}

	}

	@Override

	public HasChangeHandlers getTableSelector() {

		return tablesChooser;

	}

	@Override

	public String getSelectedTableName() {

		final int selectedIndex = tablesChooser.getSelectedIndex();

		return selectedIndex < 0 ? "" : tablesChooser.getValue(selectedIndex);

	}

	@Override

	public void setBackLink(final String documentID, final String tableName,

			final String quickFind) {

		backLinkHandlerReg.removeHandler();

		backLinkHandlerReg = backLink.addClickHandler(new ClickHandler() {

			@Override

			public void onClick(final ClickEvent event) {

				presenter.goTo(new ListPlace(documentID, tableName, ""));

			}

		});

	}

	@Override

	public void setDocumentTitle(final String documentTitle) {

		documentTitleLabel.setText(documentTitle);

		documentTitleLabel.getElement().getStyle().setOpacity(100);

	}

	@Override

	public void clear() {

		tablesChooser.clear();

		// Set a default value for the document title label with the opacity set to 0. The headbox will bounce up and

		// down when retrieving the document title from the server if an empty string is used.

		documentTitleLabel.getElement().getStyle().setOpacity(0);

		documentTitleLabel.setText("A");

	}

	@Override

	public void setBackLinkVisible(final boolean visible) {

		backLink.setVisible(visible);

	}

	@Override

	public void setPresenter(final Presenter presenter) {

		this.presenter = presenter;

	}

	@Override

	public String getSelectedTableTitle() {

		final int selectedIndex = tablesChooser.getSelectedIndex();

		return selectedIndex < 0 ? "" : tablesChooser.getItemText(selectedIndex);

	}

	@Override

	public HasChangeHandlers getQuickFindBox() {

		return searchTextBox;

	}

	@Override

	public String getQuickFindText() {

		return searchTextBox.getText();

	}

	@Override

	public void setQuickFindText(final String quickFind) {

		searchTextBox.setText(quickFind);

	}

	@Override

	public HasChangeHandlers getLocaleSelector() {

		return localesChooser;

	}

	@Override

	public void setLocaleList(final ArrayList<String> ids, final ArrayList<String> titles) {

		localesChooser.clear();

		for (int i = 0; i < ids.size(); i++) {

			localesChooser.addItem(titles.get(i), ids.get(i));

		}

	}

	@Override

	public String getSelectedLocale() {

		final int selectedIndex = localesChooser.getSelectedIndex();

		return selectedIndex < 0 ? "" : localesChooser.getValue(selectedIndex);

	}

	@Override

	public void setSelectedLocale(final String localeID) {

		for (int i = 0; i < localesChooser.getItemCount(); i++) {

			if (localeID.equals(localesChooser.getValue(i))) {

				localesChooser.setSelectedIndex(i);

				break;

			}

		}

	}

}