/*

 * Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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package javax.swing.plaf.metal;

import javax.swing.*;

import javax.swing.border.EmptyBorder;

import javax.swing.filechooser.*;

import javax.swing.event.*;

import javax.swing.plaf.*;

import javax.swing.plaf.basic.*;

import java.awt.*;

import java.awt.event.*;

import java.beans.*;

import java.io.File;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.util.*;

import java.security.AccessController;

import java.security.PrivilegedAction;

import javax.accessibility.*;

import sun.awt.shell.ShellFolder;

import sun.swing.*;

/**

 * Metal L&F implementation of a FileChooser.

 *

 * @author Jeff Dinkins

 */

public class MetalFileChooserUI extends BasicFileChooserUI {

    // Much of the Metal UI for JFilechooser is just a copy of

    // the windows implementation, but using Metal themed buttons, lists,

    // icons, etc. We are planning a complete rewrite, and hence we've

    // made most things in this class private.

    private JLabel lookInLabel;

    private JComboBox directoryComboBox;

    private DirectoryComboBoxModel directoryComboBoxModel;

    private Action directoryComboBoxAction = new DirectoryComboBoxAction();

    private FilterComboBoxModel filterComboBoxModel;

    private JTextField fileNameTextField;

    private FilePane filePane;

    private JToggleButton listViewButton;

    private JToggleButton detailsViewButton;

    private JButton approveButton;

    private JButton cancelButton;

    private JPanel buttonPanel;

    private JPanel bottomPanel;

    private JComboBox filterComboBox;

    private static final Dimension hstrut5 = new Dimension(5, 1);

    private static final Dimension hstrut11 = new Dimension(11, 1);

    private static final Dimension vstrut5  = new Dimension(1, 5);

    private static final Insets shrinkwrap = new Insets(0,0,0,0);

    // Preferred and Minimum sizes for the dialog box

    private static int PREF_WIDTH = 500;

    private static int PREF_HEIGHT = 326;

    private static Dimension PREF_SIZE = new Dimension(PREF_WIDTH, PREF_HEIGHT);

    private static int MIN_WIDTH = 500;

    private static int MIN_HEIGHT = 326;

    private static Dimension MIN_SIZE = new Dimension(MIN_WIDTH, MIN_HEIGHT);

    private static int LIST_PREF_WIDTH = 405;

    private static int LIST_PREF_HEIGHT = 135;

    private static Dimension LIST_PREF_SIZE = new Dimension(LIST_PREF_WIDTH, LIST_PREF_HEIGHT);

    // Labels, mnemonics, and tooltips (oh my!)

    private int    lookInLabelMnemonic = 0;

    private String lookInLabelText = null;

    private String saveInLabelText = null;

    private int    fileNameLabelMnemonic = 0;

    private String fileNameLabelText = null;

    private int    folderNameLabelMnemonic = 0;

    private String folderNameLabelText = null;

    private int    filesOfTypeLabelMnemonic = 0;

    private String filesOfTypeLabelText = null;

    private String upFolderToolTipText = null;

    private String upFolderAccessibleName = null;

    private String homeFolderToolTipText = null;

    private String homeFolderAccessibleName = null;

    private String newFolderToolTipText = null;

    private String newFolderAccessibleName = null;

    private String listViewButtonToolTipText = null;

    private String listViewButtonAccessibleName = null;

    private String detailsViewButtonToolTipText = null;

    private String detailsViewButtonAccessibleName = null;

    private AlignedLabel fileNameLabel;

    private void populateFileNameLabel() {

        if (getFileChooser().getFileSelectionMode() == JFileChooser.DIRECTORIES_ONLY) {

            fileNameLabel.setText(folderNameLabelText);

            fileNameLabel.setDisplayedMnemonic(folderNameLabelMnemonic);

        } else {

            fileNameLabel.setText(fileNameLabelText);

            fileNameLabel.setDisplayedMnemonic(fileNameLabelMnemonic);

        }

    }

    public static ComponentUI createUI(JComponent c) {

        return new MetalFileChooserUI((JFileChooser) c);

    }

    public MetalFileChooserUI(JFileChooser filechooser) {

        super(filechooser);

    }

    public void installUI(JComponent c) {

        super.installUI(c);

    }

    public void uninstallComponents(JFileChooser fc) {

        fc.removeAll();

        bottomPanel = null;

        buttonPanel = null;

    }

    private class MetalFileChooserUIAccessor implements FilePane.FileChooserUIAccessor {

        public JFileChooser getFileChooser() {

            return MetalFileChooserUI.this.getFileChooser();

        }

        public BasicDirectoryModel getModel() {

            return MetalFileChooserUI.this.getModel();

        }

        public JPanel createList() {

            return MetalFileChooserUI.this.createList(getFileChooser());

        }

        public JPanel createDetailsView() {

            return MetalFileChooserUI.this.createDetailsView(getFileChooser());

        }

        public boolean isDirectorySelected() {

            return MetalFileChooserUI.this.isDirectorySelected();

        }

        public File getDirectory() {

            return MetalFileChooserUI.this.getDirectory();

        }

        public Action getChangeToParentDirectoryAction() {

            return MetalFileChooserUI.this.getChangeToParentDirectoryAction();

        }

        public Action getApproveSelectionAction() {

            return MetalFileChooserUI.this.getApproveSelectionAction();

        }

        public Action getNewFolderAction() {

            return MetalFileChooserUI.this.getNewFolderAction();

        }

        public MouseListener createDoubleClickListener(JList list) {

            return MetalFileChooserUI.this.createDoubleClickListener(getFileChooser(),

                                                                     list);

        }

        public ListSelectionListener createListSelectionListener() {

            return MetalFileChooserUI.this.createListSelectionListener(getFileChooser());

        }

    }

    public void installComponents(JFileChooser fc) {

        FileSystemView fsv = fc.getFileSystemView();

        fc.setBorder(new EmptyBorder(12, 12, 11, 11));

        fc.setLayout(new BorderLayout(0, 11));

        filePane = new FilePane(new MetalFileChooserUIAccessor());

        fc.addPropertyChangeListener(filePane);

        // ********************************* //

        // **** Construct the top panel **** //

        // ********************************* //

        // Directory manipulation buttons

        JPanel topPanel = new JPanel(new BorderLayout(11, 0));

        JPanel topButtonPanel = new JPanel();

        topButtonPanel.setLayout(new BoxLayout(topButtonPanel, BoxLayout.LINE_AXIS));

        topPanel.add(topButtonPanel, BorderLayout.AFTER_LINE_ENDS);

        // Add the top panel to the fileChooser

        fc.add(topPanel, BorderLayout.NORTH);

        // ComboBox Label

        lookInLabel = new JLabel(lookInLabelText);

        lookInLabel.setDisplayedMnemonic(lookInLabelMnemonic);

        topPanel.add(lookInLabel, BorderLayout.BEFORE_LINE_BEGINS);

        // CurrentDir ComboBox

        @SuppressWarnings("serial") // anonymous class

        JComboBox tmp1 = new JComboBox() {

            public Dimension getPreferredSize() {

                Dimension d = super.getPreferredSize();

                // Must be small enough to not affect total width.

                d.width = 150;

                return d;

            }

        };

        directoryComboBox = tmp1;

        directoryComboBox.putClientProperty(AccessibleContext.ACCESSIBLE_DESCRIPTION_PROPERTY,

                                            lookInLabelText);

        directoryComboBox.putClientProperty( "JComboBox.isTableCellEditor", Boolean.TRUE );

        lookInLabel.setLabelFor(directoryComboBox);

        directoryComboBoxModel = createDirectoryComboBoxModel(fc);

        directoryComboBox.setModel(directoryComboBoxModel);

        directoryComboBox.addActionListener(directoryComboBoxAction);

        directoryComboBox.setRenderer(createDirectoryComboBoxRenderer(fc));

        directoryComboBox.setAlignmentX(JComponent.LEFT_ALIGNMENT);

        directoryComboBox.setAlignmentY(JComponent.TOP_ALIGNMENT);

        directoryComboBox.setMaximumRowCount(8);

        topPanel.add(directoryComboBox, BorderLayout.CENTER);

        // Up Button

        JButton upFolderButton = new JButton(getChangeToParentDirectoryAction());

        upFolderButton.setText(null);

        upFolderButton.setIcon(upFolderIcon);

        upFolderButton.setToolTipText(upFolderToolTipText);

        upFolderButton.putClientProperty(AccessibleContext.ACCESSIBLE_NAME_PROPERTY,

                                         upFolderAccessibleName);

        upFolderButton.setAlignmentX(JComponent.LEFT_ALIGNMENT);

        upFolderButton.setAlignmentY(JComponent.CENTER_ALIGNMENT);

        upFolderButton.setMargin(shrinkwrap);

        topButtonPanel.add(upFolderButton);

        topButtonPanel.add(Box.createRigidArea(hstrut5));

        // Home Button

        File homeDir = fsv.getHomeDirectory();

        String toolTipText = homeFolderToolTipText;

        if (fsv.isRoot(homeDir)) {

            toolTipText = getFileView(fc).getName(homeDir); // Probably "Desktop".

        }

        JButton b = new JButton(homeFolderIcon);

        b.setToolTipText(toolTipText);

        b.putClientProperty(AccessibleContext.ACCESSIBLE_NAME_PROPERTY,

                            homeFolderAccessibleName);

        b.setAlignmentX(JComponent.LEFT_ALIGNMENT);

        b.setAlignmentY(JComponent.CENTER_ALIGNMENT);

        b.setMargin(shrinkwrap);

        b.addActionListener(getGoHomeAction());

        topButtonPanel.add(b);

        topButtonPanel.add(Box.createRigidArea(hstrut5));

        // New Directory Button

        if (!UIManager.getBoolean("FileChooser.readOnly")) {

            b = new JButton(filePane.getNewFolderAction());

            b.setText(null);

            b.setIcon(newFolderIcon);

            b.setToolTipText(newFolderToolTipText);

            b.putClientProperty(AccessibleContext.ACCESSIBLE_NAME_PROPERTY,

                                newFolderAccessibleName);

            b.setAlignmentX(JComponent.LEFT_ALIGNMENT);

            b.setAlignmentY(JComponent.CENTER_ALIGNMENT);

            b.setMargin(shrinkwrap);

        }

        topButtonPanel.add(b);

        topButtonPanel.add(Box.createRigidArea(hstrut5));

        // View button group

        ButtonGroup viewButtonGroup = new ButtonGroup();

        // List Button

        listViewButton = new JToggleButton(listViewIcon);

        listViewButton.setToolTipText(listViewButtonToolTipText);

        listViewButton.putClientProperty(AccessibleContext.ACCESSIBLE_NAME_PROPERTY,

                                         listViewButtonAccessibleName);

        listViewButton.setSelected(true);

        listViewButton.setAlignmentX(JComponent.LEFT_ALIGNMENT);

        listViewButton.setAlignmentY(JComponent.CENTER_ALIGNMENT);

        listViewButton.setMargin(shrinkwrap);

        listViewButton.addActionListener(filePane.getViewTypeAction(FilePane.VIEWTYPE_LIST));

        topButtonPanel.add(listViewButton);

        viewButtonGroup.add(listViewButton);

        // Details Button

        detailsViewButton = new JToggleButton(detailsViewIcon);

        detailsViewButton.setToolTipText(detailsViewButtonToolTipText);

        detailsViewButton.putClientProperty(AccessibleContext.ACCESSIBLE_NAME_PROPERTY,

                                            detailsViewButtonAccessibleName);

        detailsViewButton.setAlignmentX(JComponent.LEFT_ALIGNMENT);

        detailsViewButton.setAlignmentY(JComponent.CENTER_ALIGNMENT);

        detailsViewButton.setMargin(shrinkwrap);

        detailsViewButton.addActionListener(filePane.getViewTypeAction(FilePane.VIEWTYPE_DETAILS));

        topButtonPanel.add(detailsViewButton);

        viewButtonGroup.add(detailsViewButton);

        filePane.addPropertyChangeListener(new PropertyChangeListener() {

            public void propertyChange(PropertyChangeEvent e) {

                if ("viewType".equals(e.getPropertyName())) {

                    int viewType = filePane.getViewType();

                    switch (viewType) {

                      case FilePane.VIEWTYPE_LIST:

                        listViewButton.setSelected(true);

                        break;

                      case FilePane.VIEWTYPE_DETAILS:

                        detailsViewButton.setSelected(true);

                        break;

                    }

                }

            }

        });

        // ************************************** //

        // ******* Add the directory pane ******* //

        // ************************************** //

        fc.add(getAccessoryPanel(), BorderLayout.AFTER_LINE_ENDS);

        JComponent accessory = fc.getAccessory();

        if(accessory != null) {

            getAccessoryPanel().add(accessory);

        }

        filePane.setPreferredSize(LIST_PREF_SIZE);

        fc.add(filePane, BorderLayout.CENTER);

        // ********************************** //

        // **** Construct the bottom panel ** //

        // ********************************** //

        JPanel bottomPanel = getBottomPanel();

        bottomPanel.setLayout(new BoxLayout(bottomPanel, BoxLayout.Y_AXIS));

        fc.add(bottomPanel, BorderLayout.SOUTH);

        // FileName label and textfield

        JPanel fileNamePanel = new JPanel();

        fileNamePanel.setLayout(new BoxLayout(fileNamePanel, BoxLayout.LINE_AXIS));

        bottomPanel.add(fileNamePanel);

        bottomPanel.add(Box.createRigidArea(vstrut5));

        fileNameLabel = new AlignedLabel();

        populateFileNameLabel();

        fileNamePanel.add(fileNameLabel);

        @SuppressWarnings("serial") // anonymous class

        JTextField tmp2 = new JTextField(35) {

            public Dimension getMaximumSize() {

                return new Dimension(Short.MAX_VALUE, super.getPreferredSize().height);

            }

        };

        fileNameTextField = tmp2;

        fileNamePanel.add(fileNameTextField);

        fileNameLabel.setLabelFor(fileNameTextField);

        fileNameTextField.addFocusListener(

            new FocusAdapter() {

                public void focusGained(FocusEvent e) {

                    if (!getFileChooser().isMultiSelectionEnabled()) {

                        filePane.clearSelection();

                    }

                }

            }

        );

        if (fc.isMultiSelectionEnabled()) {

            setFileName(fileNameString(fc.getSelectedFiles()));

        } else {

            setFileName(fileNameString(fc.getSelectedFile()));

        }

        // Filetype label and combobox

        JPanel filesOfTypePanel = new JPanel();

        filesOfTypePanel.setLayout(new BoxLayout(filesOfTypePanel, BoxLayout.LINE_AXIS));

        bottomPanel.add(filesOfTypePanel);

        AlignedLabel filesOfTypeLabel = new AlignedLabel(filesOfTypeLabelText);

        filesOfTypeLabel.setDisplayedMnemonic(filesOfTypeLabelMnemonic);

        filesOfTypePanel.add(filesOfTypeLabel);

        filterComboBoxModel = createFilterComboBoxModel();

        fc.addPropertyChangeListener(filterComboBoxModel);

        filterComboBox = new JComboBox(filterComboBoxModel);

        filterComboBox.putClientProperty(AccessibleContext.ACCESSIBLE_DESCRIPTION_PROPERTY,

                                         filesOfTypeLabelText);

        filesOfTypeLabel.setLabelFor(filterComboBox);

        filterComboBox.setRenderer(createFilterComboBoxRenderer());

        filesOfTypePanel.add(filterComboBox);

        // buttons

        getButtonPanel().setLayout(new ButtonAreaLayout());

        approveButton = new JButton(getApproveButtonText(fc));

        // Note: Metal does not use mnemonics for approve and cancel

        approveButton.addActionListener(getApproveSelectionAction());

        approveButton.setToolTipText(getApproveButtonToolTipText(fc));

        getButtonPanel().add(approveButton);

        cancelButton = new JButton(cancelButtonText);

        cancelButton.setToolTipText(cancelButtonToolTipText);

        cancelButton.addActionListener(getCancelSelectionAction());

        getButtonPanel().add(cancelButton);

        if(fc.getControlButtonsAreShown()) {

            addControlButtons();

        }

        groupLabels(new AlignedLabel[] { fileNameLabel, filesOfTypeLabel });

    }

    protected JPanel getButtonPanel() {

        if (buttonPanel == null) {

            buttonPanel = new JPanel();

        }

        return buttonPanel;

    }

    protected JPanel getBottomPanel() {

        if(bottomPanel == null) {

            bottomPanel = new JPanel();

        }

        return bottomPanel;

    }

    protected void installStrings(JFileChooser fc) {

        super.installStrings(fc);

        Locale l = fc.getLocale();

        lookInLabelMnemonic = getMnemonic("FileChooser.lookInLabelMnemonic", l);

        lookInLabelText = UIManager.getString("FileChooser.lookInLabelText",l);

        saveInLabelText = UIManager.getString("FileChooser.saveInLabelText",l);

        fileNameLabelMnemonic = getMnemonic("FileChooser.fileNameLabelMnemonic", l);

        fileNameLabelText = UIManager.getString("FileChooser.fileNameLabelText",l);

        folderNameLabelMnemonic = getMnemonic("FileChooser.folderNameLabelMnemonic", l);

        folderNameLabelText = UIManager.getString("FileChooser.folderNameLabelText",l);

        filesOfTypeLabelMnemonic = getMnemonic("FileChooser.filesOfTypeLabelMnemonic", l);

        filesOfTypeLabelText = UIManager.getString("FileChooser.filesOfTypeLabelText",l);

        upFolderToolTipText =  UIManager.getString("FileChooser.upFolderToolTipText",l);

        upFolderAccessibleName = UIManager.getString("FileChooser.upFolderAccessibleName",l);

        homeFolderToolTipText =  UIManager.getString("FileChooser.homeFolderToolTipText",l);

        homeFolderAccessibleName = UIManager.getString("FileChooser.homeFolderAccessibleName",l);

        newFolderToolTipText = UIManager.getString("FileChooser.newFolderToolTipText",l);

        newFolderAccessibleName = UIManager.getString("FileChooser.newFolderAccessibleName",l);

        listViewButtonToolTipText = UIManager.getString("FileChooser.listViewButtonToolTipText",l);

        listViewButtonAccessibleName = UIManager.getString("FileChooser.listViewButtonAccessibleName",l);

        detailsViewButtonToolTipText = UIManager.getString("FileChooser.detailsViewButtonToolTipText",l);

        detailsViewButtonAccessibleName = UIManager.getString("FileChooser.detailsViewButtonAccessibleName",l);

    }

    private Integer getMnemonic(String key, Locale l) {

        return SwingUtilities2.getUIDefaultsInt(key, l);

    }

    protected void installListeners(JFileChooser fc) {

        super.installListeners(fc);

        ActionMap actionMap = getActionMap();

        SwingUtilities.replaceUIActionMap(fc, actionMap);

    }