/*
* This file is part of muCommander, http://www.mucommander.com
* Copyright (C) 2002-2012 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.action.impl;
import java.awt.Component;
import java.awt.event.KeyEvent;
import java.util.Map;
import javax.swing.JTextField;
import javax.swing.JTree;
import javax.swing.KeyStroke;
import com.mucommander.ui.action.AbstractActionDescriptor;
import com.mucommander.ui.action.ActionCategories;
import com.mucommander.ui.action.ActionCategory;
import com.mucommander.ui.action.ActionDescriptor;
import com.mucommander.ui.action.ActionFactory;
import com.mucommander.ui.action.MuAction;
import com.mucommander.ui.helper.FocusRequester;
import com.mucommander.ui.main.FolderPanel;
import com.mucommander.ui.main.MainFrame;
import com.mucommander.ui.main.table.FileTable;
/**
* This action allows to cycle backward through the current {@link FolderPanel}'s focusable components: file table,
* folder tree and location field. The action has no effect when the focus is not in the {@link MainFrame} this action
* is tied to.
*
* @author Maxence Bernard
*/
public class FocusPreviousAction extends MuAction {
public FocusPreviousAction(MainFrame mainFrame, Map<String,Object> properties) {
super(mainFrame, properties);
// Perform the action also when in 'no events' mode
setHonourNoEventsMode(false);
}
@Override
public void performAction() {
Component focusOwner = mainFrame.getFocusOwner();
// Abort if the focus is not in the MainFrame this action is tied to
if(focusOwner==null)
return;
FolderPanel folderPanel = mainFrame.getActivePanel();
FileTable fileTable = folderPanel.getFileTable();
JTextField locationField = folderPanel.getLocationTextField();
JTree tree = folderPanel.getFoldersTreePanel().getTree();
// Request focus on the 'previous' component, the cycle order being from right to left, bottom to top.
Component previousComponent;
if(focusOwner==fileTable)
previousComponent = folderPanel.isTreeVisible()?tree:locationField;
else if(focusOwner==tree)
previousComponent = locationField;
else if(focusOwner==locationField)
previousComponent = fileTable;
else
return;
FocusRequester.requestFocusInWindow(previousComponent);
}
@Override
public ActionDescriptor getDescriptor() {
return new Descriptor();
}
public static class Factory implements ActionFactory {
public MuAction createAction(MainFrame mainFrame, Map<String,Object> properties) {
return new FocusPreviousAction(mainFrame, properties);
}
}
public static class Descriptor extends AbstractActionDescriptor {
public static final String ACTION_ID = "FocusPrevious";
public String getId() { return ACTION_ID; }
public ActionCategory getCategory() { return ActionCategories.NAVIGATION; }
public KeyStroke getDefaultAltKeyStroke() { return null; }
public KeyStroke getDefaultKeyStroke() { return KeyStroke.getKeyStroke(KeyEvent.VK_TAB, KeyEvent.SHIFT_DOWN_MASK | KeyEvent.CTRL_DOWN_MASK); }
}
}