1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
/*******************************************************************************
* Copyright (c) 2011, 2015 Wind River Systems, Inc. and others. All rights reserved.
* This program and the accompanying materials are made available under the terms
* of the Eclipse Public License v1.0 which accompanies this distribution, and is
* available at http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.te.tcf.filesystem.ui.internal.dnd;
import org.eclipse.jface.util.LocalSelectionTransfer;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.ViewerDropAdapter;
import org.eclipse.swt.dnd.DND;
import org.eclipse.swt.dnd.DropTargetEvent;
import org.eclipse.swt.dnd.FileTransfer;
import org.eclipse.swt.dnd.TransferData;
import org.eclipse.tcf.te.tcf.filesystem.core.interfaces.runtime.IFSTreeNode;
/**
* The drop target listener for the file tree of Target Explorer.
*/
public class FSDropTargetListener extends ViewerDropAdapter {
// The tree viewer that the drop listener attached to.
TreeViewer viewer;
// The common dnd operation
CommonDnD dnd;
/**
* Create FSDropTargetListener using the viewer.
*
* @param viewer The file system tree viewer.
*/
public FSDropTargetListener(TreeViewer viewer) {
super(viewer);
this.viewer = viewer;
dnd = new CommonDnD();
}
/*
* (non-Javadoc)
* @see org.eclipse.jface.viewers.ViewerDropAdapter#dragEnter(org.eclipse.swt.dnd.DropTargetEvent)
*/
@Override
public void dragEnter(DropTargetEvent event) {
if (FileTransfer.getInstance().isSupportedType(event.currentDataType)) {
// Force the operation of file transfer from external application to DROP_COPY
event.detail = DND.DROP_COPY;
}
super.dragEnter(event);
}
/*
* (non-Javadoc)
* @see org.eclipse.jface.viewers.ViewerDropAdapter#validateDrop(java.lang.Object, int, org.eclipse.swt.dnd.TransferData)
*/
@Override
public boolean validateDrop(Object target, int operation, TransferData transferType) {
if (target instanceof IFSTreeNode) {
if (LocalSelectionTransfer.getTransfer().isSupportedType(transferType)) {
return dnd.validateLocalSelectionDrop(target, operation, transferType);
}
else if (FileTransfer.getInstance().isSupportedType(transferType)) {
return dnd.validateFilesDrop(target, operation, transferType);
}
}
return false;
}
/*
* (non-Javadoc)
* @see org.eclipse.jface.viewers.ViewerDropAdapter#performDrop(java.lang.Object)
*/
@Override
public boolean performDrop(Object data) {
boolean success = false;
TransferData transferType = getCurrentEvent().currentDataType;
if (LocalSelectionTransfer.getTransfer().isSupportedType(transferType)) {
IStructuredSelection selection = (IStructuredSelection) data;
int operations = getCurrentOperation();
IFSTreeNode target = (IFSTreeNode) getCurrentTarget();
success = dnd.dropLocalSelection(target, operations, selection);
}
else if(FileTransfer.getInstance().isSupportedType(transferType)) {
String[] files = (String[]) data;
int operations = getCurrentOperation();
IFSTreeNode target = (IFSTreeNode) getCurrentTarget();
success = dnd.dropFiles(viewer, files, operations, target);
}
return success;
}
}
|