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
|
/*******************************************************************************
* Copyright (c) 2006 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.team.internal.ui.history;
import org.eclipse.core.resources.IResource;
import org.eclipse.swt.dnd.*;
import org.eclipse.ui.part.PluginDropAdapter;
import org.eclipse.ui.part.ResourceTransfer;
public class GenericHistoryDropAdapter extends PluginDropAdapter {
private GenericHistoryView view;
public GenericHistoryDropAdapter(GenericHistoryView view) {
super(null);
this.view = view;
}
/*
* Override dragOver to slam the detail to DROP_LINK, as we do not
* want to really execute a DROP_MOVE, although we want to respond
* to it.
*/
@Override
public void dragOver(DropTargetEvent event) {
if ((event.operations & DND.DROP_LINK) == DND.DROP_LINK) {
event.detail = DND.DROP_LINK;
}
super.dragOver(event);
}
/*
* Override drop to slam the detail to DROP_LINK, as we do not
* want to really execute a DROP_MOVE, although we want to respond
* to it.
*/
@Override
public void drop(DropTargetEvent event) {
super.drop(event);
event.detail = DND.DROP_LINK;
}
@Override
public boolean performDrop(Object data) {
if (data == null)
return false;
if (data instanceof IResource[]) {
IResource[] sources = (IResource[]) data;
if (sources.length == 0)
return false;
IResource resource = sources[0];
//Allow all resources types through to the view, the individual pages can decide
//which ones to handle
view.showHistoryPageFor(resource, true, true, null);
return true;
}
return false;
}
@Override
public boolean validateDrop(Object target, int operation, TransferData transferType) {
if (transferType != null && ResourceTransfer.getInstance().isSupportedType(transferType)) {
return true;
}
return super.validateDrop(target, operation, transferType);
}
@Override
protected Object getCurrentTarget() {
return view;
}
}
|
