/*
 * (c) Copyright 2010-2011 AgileBirds
 *
 * This file is part of OpenFlexo.
 *
 * OpenFlexo is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * OpenFlexo 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with OpenFlexo. If not, see <http://www.gnu.org/licenses/>.
 *
 */
package org.openflexo.fib.view.widget;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusEvent;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.swing.BorderFactory;
import javax.swing.JDialog;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;

import org.openflexo.antar.binding.AbstractBinding;
import org.openflexo.fib.controller.FIBController;
import org.openflexo.fib.model.FIBTextField;
import org.openflexo.fib.view.FIBWidgetView;
import org.openflexo.toolbox.ToolBox;

/**
 * Simple widget allowing to display/edit a String
 * 
 * @author bmangez
 */
public class FIBTextFieldWidget extends FIBWidgetView<FIBTextField, JTextField, String> {

	private static final Logger logger = Logger.getLogger(FIBTextFieldWidget.class.getPackage().getName());

	private static final int DEFAULT_COLUMNS = 10;

	private JPanel panel;
	private JTextField textField;

	boolean validateOnReturn;

	public FIBTextFieldWidget(FIBTextField model, FIBController controller) {
		super(model, controller);
		if (model.isPasswd()) {
			textField = new JPasswordField() {
				@Override
				public Dimension getMinimumSize() {
					return MINIMUM_SIZE;
				}
			};
		} else {
			textField = new JTextField() {
				@Override
				public Dimension getMinimumSize() {
					return MINIMUM_SIZE;
				}
			};
		}
		panel = new JPanel(new BorderLayout());
		panel.setOpaque(false);
		panel.add(textField, BorderLayout.CENTER);
		if (!ToolBox.isMacOSLaf()) {
			panel.setBorder(BorderFactory.createEmptyBorder(TOP_COMPENSATING_BORDER, LEFT_COMPENSATING_BORDER, BOTTOM_COMPENSATING_BORDER,
					RIGHT_COMPENSATING_BORDER));
		}
		/*
		 * else { textField.setBorder(new EtchedBorder(EtchedBorder.LOWERED)); }
		 */

		if (isReadOnly()) {
			textField.setEditable(false);
		}

		validateOnReturn = model.isValidateOnReturn();
		if (model.getColumns() != null) {
			textField.setColumns(model.getColumns());
		} else {
			textField.setColumns(DEFAULT_COLUMNS);
		}

		if (model.getText() != null) {
			textField.setText(model.getText());
		}
		textField.getDocument().addDocumentListener(new DocumentListener() {
			@Override
			public void changedUpdate(DocumentEvent e) {
				if (!validateOnReturn && !widgetUpdating) {
					updateModelFromWidget();
				}
			}

			@Override
			public void insertUpdate(DocumentEvent e) {
				if (!validateOnReturn && !widgetUpdating) {
					try {
						if (ToolBox.getPLATFORM() == ToolBox.MACOS) {
							if (e.getLength() == 1) {
								char c = textField.getText().charAt(e.getOffset());
								if (c == '´' || c == 'ˆ' || c == '˜' || c == '`' || c == '¨') {
									return;
								}
							}
						}
					} catch (RuntimeException e1) {
						e1.printStackTrace();
					}
					updateModelFromWidget();
				}
			}

			@Override
			public void removeUpdate(DocumentEvent e) {
				if (!validateOnReturn && !widgetUpdating) {
					updateModelFromWidget();
				}
			}
		});
		textField.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				updateModelFromWidget();
				final Window w = SwingUtilities.windowForComponent(textField);
				if (w instanceof JDialog) {
					if (((JDialog) w).getRootPane().getDefaultButton() != null) {
						SwingUtilities.invokeLater(new Runnable() {

							@Override
							public void run() {
								// TODO Auto-generated method stub

								((JDialog) w).getRootPane().getDefaultButton().doClick();
							}
						});
					}
				}
			}
		});
		textField.addFocusListener(this);

		updateFont();
	}

	@Override
	public void focusGained(FocusEvent arg0) {
		super.focusGained(arg0);
		textField.selectAll();
	}

	public Class getDefaultType() {
		return String.class;
	}

	@Override
	public List<AbstractBinding> getDependencyBindings() {
		List<AbstractBinding> returned = super.getDependencyBindings();
		appendToDependingObjects(getWidget().getEditable(), returned);
		return returned;
	}

	@Override
	public synchronized boolean updateWidgetFromModel() {
		if (notEquals(getValue(), textField.getText())) {
			if (modelUpdating) {
				return false;
			}
			widgetUpdating = true;
			try {
				int caret = textField.getCaretPosition();
				textField.setText(getValue());
				if (caret > -1 && caret < textField.getDocument().getLength()) {
					textField.setCaretPosition(caret);
				}
			} finally {
				widgetUpdating = false;
			}
			return true;
		}
		return false;
	}

	/**
	 * Update the model given the actual state of the widget
	 */
	@Override
	public synchronized boolean updateModelFromWidget() {
		if (notEquals(getValue(), textField.getText())) {
			if (logger.isLoggable(Level.FINE)) {
				logger.fine("updateModelFromWidget() in TextFieldWidget");
			}
			modelUpdating = true;
			try {
				setValue(textField.getText());
			} finally {
				modelUpdating = false;
			}
			return true;
		}
		return false;
	}

	@Override
	public JPanel getJComponent() {
		return panel;
	}

	@Override
	public JTextField getDynamicJComponent() {
		return textField;
	}

}