/*
* 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.dnd;
import com.mucommander.ui.main.FolderPanel;
/**
* This class gives information about the context in which a drag-and-drop operation is being performed.
* The getters are static since only one drag-and-drop operation can be performed at the same time. The information
* returned by the getters is meaningful only when a drag-and-drop is being carried out.
*
* @see FileDragSourceListener
* @author Maxence Bernard
*/
public class DnDContext {
/** Has the drag operation been initiated by muCommander ? */
private static boolean dragInitiatedByMucommander;
/** FolderPanel instance which initiated the drag */
private static FolderPanel dragInitiator;
/** Current drag gesture modifiers */
private static int dragGestureModifiersEx;
/**
* Returns <code>true<code> if the current drag has been initiated by muCommander, i.e. *not* by another application.
* The returned value has a meaning only if a drag operation is currently being performed.
*/
public static boolean isDragInitiatedByMucommander() {
return dragInitiatedByMucommander;
}
/**
* This method is called by {@link FileDragSourceListener}.
*/
static void setDragInitiatedByMucommander(boolean b) {
dragInitiatedByMucommander = b;
}
/**
* Returns the {@link FolderPanel} instance that initiated the drag operation.
* This method returns <code>null</code> if the current drag has not been initiated by muCommander.
*/
public static FolderPanel getDragInitiator() {
return dragInitiator;
}
/**
* This method is called by {@link FileDragSourceListener}.
*/
static void setDragInitiator(FolderPanel fp) {
dragInitiator = fp;
}
/**
* Returns the extended modifiers that are currently pressed while dragging.
* This method returns <code>0</code> if the current drag has not been initiated by muCommander.
*/
public static int getDragGestureModifiersEx() {
return dragGestureModifiersEx;
}
/**
* This method is called by {@link FileDragSourceListener}.
*/
static void setDragGestureModifiersEx(int modifiersEx) {
dragGestureModifiersEx = modifiersEx;
// AppLogger.finest("gestureModifiersEx="+modifiersEx);
// AppLogger.finest("getModifiersExText="+ InputEvent.getModifiersExText(modifiersEx));
// AppLogger.finest("is shift down="+((modifiersEx&InputEvent.SHIFT_DOWN_MASK)!=0));
// AppLogger.finest("is ctrl down="+((modifiersEx&InputEvent.CTRL_DOWN_MASK)!=0));
// AppLogger.finest("is alt down="+((modifiersEx&InputEvent.ALT_DOWN_MASK)!=0));
// AppLogger.finest("is meta down="+((modifiersEx&InputEvent.META_DOWN_MASK)!=0));
}
}