/*
* This file is part of muCommander, http://www.mucommander.com
* Copyright (C) 2002-2016 Maxence Bernard
*
* muCommander 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.
*
* muCommander 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.mucommander.ui.dialog.file;
import com.mucommander.commons.file.AbstractFile;
import com.mucommander.commons.file.util.FileSet;
import com.mucommander.desktop.AbstractTrash;
import com.mucommander.desktop.DesktopManager;
import com.mucommander.job.impl.DeleteJob;
import com.mucommander.text.Translator;
import com.mucommander.ui.action.ActionManager;
import com.mucommander.ui.action.ActionProperties;
import com.mucommander.ui.action.impl.DeleteAction;
import com.mucommander.ui.action.impl.PermanentDeleteAction;
import com.mucommander.ui.dialog.DialogToolkit;
import com.mucommander.ui.layout.InformationPane;
import com.mucommander.ui.layout.YBoxPanel;
import com.mucommander.ui.main.MainFrame;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
/**
* Confirmation dialog invoked when the user wants to delete currently selected files. It allows to choose between two
* different ways of deleting files: move them to the trash or permanently erase them. The former choice is only given
* if a trash is available on the current platform and capable of moving the selected files.
* The choice (use trash or not) is saved in the preferences and reused next time this dialog is invoked.
*
* @see com.mucommander.ui.action.impl.DeleteAction
* @author Maxence Bernard
*/
public class DeleteDialog extends JobDialog implements ItemListener, ActionListener {
/** Should files be moved to the trash or permanently erased */
private boolean moveToTrash;
/** Allows to control whether files should be moved to trash when deleted or permanently erased */
private JCheckBox moveToTrashCheckBox;
/** Informs the user about the consequences of deleting files, based on the current 'Move to trash' choice */
private InformationPane informationPane;
/** The button that confirms deletion */
private JButton deleteButton;
/** Dialog size constraints */
private final static Dimension MINIMUM_DIALOG_DIMENSION = new Dimension(360,0);
public DeleteDialog(MainFrame mainFrame, FileSet files, boolean deletePermanently) {
super(mainFrame, ActionProperties.getActionLabel(DeleteAction.Descriptor.ACTION_ID), files);
this.mainFrame = mainFrame;
YBoxPanel mainPanel = new YBoxPanel();
// Allow 'Move to trash' option only if:
// - the current platform has a trash
// - the base folder is not an archive
// - the base folder of the to-be-deleted files is not a trash folder or one of its children
// - the base folder can be moved to the trash (the eligibility conditions should be the same as the files to-be-deleted)
AbstractTrash trash = DesktopManager.getTrash();
AbstractFile baseFolder = files.getBaseFolder();
if(trash!=null && !baseFolder.isArchive() && !trash.isTrashFile(baseFolder) && trash.canMoveToTrash(baseFolder)) {
moveToTrash = !deletePermanently;
moveToTrashCheckBox = new JCheckBox(Translator.get("delete_dialog.move_to_trash.option"), moveToTrash);
moveToTrashCheckBox.addItemListener(this);
}
informationPane = new InformationPane();
mainPanel.add(informationPane);
mainPanel.addSpace(10);
JPanel fileDetailsPanel = createFileDetailsPanel();
// Create file details button and OK/cancel buttons and lay them out a single row
deleteButton = new JButton(Translator.get("delete"));
JButton cancelButton = new JButton(Translator.get("cancel"));
mainPanel.add(createButtonsPanel(createFileDetailsButton(fileDetailsPanel),
DialogToolkit.createOKCancelPanel(deleteButton, cancelButton, getRootPane(), this)));
mainPanel.add(fileDetailsPanel);
if(moveToTrashCheckBox!=null)
mainPanel.add(moveToTrashCheckBox);
getContentPane().add(mainPanel);
// Give initial keyboard focus to the 'Delete' button
setInitialFocusComponent(deleteButton);
// Call dispose() when dialog is closed
setDefaultCloseOperation(DISPOSE_ON_CLOSE);
updateDialog();
// Size dialog and show it to the screen
setMinimumSize(MINIMUM_DIALOG_DIMENSION);
setResizable(false);
}
/**
* Updates the information pane to reflect the current 'Move to trash' choice.
*/
private void updateDialog() {
informationPane.getMainLabel().setText(Translator.get(moveToTrash?"delete_dialog.move_to_trash.confirmation":"delete_dialog.permanently_delete.confirmation"));
informationPane.getCaptionLabel().setText(Translator.get(moveToTrash?"delete_dialog.move_to_trash.confirmation_details":"this_operation_cannot_be_undone"));
informationPane.setIcon(moveToTrash?null: InformationPane.getPredefinedIcon(InformationPane.WARNING_ICON));
setTitle(ActionManager.getActionInstance(moveToTrash?DeleteAction.Descriptor.ACTION_ID:PermanentDeleteAction.Descriptor.ACTION_ID, mainFrame).getLabel());
}
/////////////////////////////////
// ItemListener implementation //
/////////////////////////////////
public void itemStateChanged(ItemEvent e) {
moveToTrash = moveToTrashCheckBox.isSelected();
updateDialog();
pack();
}
///////////////////////////////////
// ActionListener implementation //
///////////////////////////////////
public void actionPerformed(ActionEvent e) {
// Start by disposing this dialog
dispose();
if(e.getSource()==deleteButton) {
// Starts deleting files
ProgressDialog progressDialog = new ProgressDialog(mainFrame, Translator.get("delete_dialog.deleting"));
DeleteJob deleteJob = new DeleteJob(progressDialog, mainFrame, files, moveToTrash);
progressDialog.start(deleteJob);
}
}
}